diff --git a/.classpath b/.classpath
index 5e8a55f..c67d98a 100644
--- a/.classpath
+++ b/.classpath
@@ -6,6 +6,11 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
+	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
 		<attributes>
 			<attribute name="optional" value="true"/>
@@ -21,6 +26,7 @@
 	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="org.eclipse.jst.component.nondependency" value=""/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
diff --git a/.gitignore b/.gitignore
index b83d222..d00ef39 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
 /target/
+/.classpath
+/*.project
+/.settings
diff --git a/.project b/.project
index cd1394b..de28e07 100644
--- a/.project
+++ b/.project
@@ -5,6 +5,11 @@
 	<projects>
 	</projects>
 	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.wst.common.project.facet.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 		<buildCommand>
 			<name>org.eclipse.jdt.core.javabuilder</name>
 			<arguments>
@@ -15,9 +20,17 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
+		<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
+		<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
+		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
 	</natures>
 </projectDescription>
diff --git a/.settings/org.eclipse.wst.common.component b/.settings/org.eclipse.wst.common.component
new file mode 100644
index 0000000..a17d9d6
--- /dev/null
+++ b/.settings/org.eclipse.wst.common.component
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?><project-modules id="moduleCoreId" project-version="1.5.0">
+    <wb-module deploy-name="storage-manager-core">
+        <wb-resource deploy-path="/" source-path="/src/main/java"/>
+        <wb-resource deploy-path="/" source-path="/src/main/resources"/>
+    </wb-module>
+</project-modules>
diff --git a/.settings/org.eclipse.wst.common.project.facet.core.xml b/.settings/org.eclipse.wst.common.project.facet.core.xml
new file mode 100644
index 0000000..fb95c45
--- /dev/null
+++ b/.settings/org.eclipse.wst.common.project.facet.core.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <installed facet="java" version="1.8"/>
+  <installed facet="jst.utility" version="1.0"/>
+</faceted-project>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 352def5..345f916 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,25 +3,18 @@
 ## [v4.0.0-SNAPSHOT]
   * compatible with s3 storage backend
 
-## [v2.13.0-SNAPSHOT]
+## [v3.0.0] 2021-09-10
+  * fix #22164
+  * fix  #21980
+  * update gcube-bom version
   * add close operation on IClient interface
-  
-## [v2.12.1-SNAPSHOT]
   * add check on transport layer instance: if the memory type is not the same, a new transportLayer is instatiated
   * move memoryType var from super class TransportManager
   * convert BasicDBObject to DBObject the return type used for metadata collections
-
-## [v2.12.0-SNAPSHOT]
   * One pool for every operation: static Operation class; no mongo close operation
-
-## [v2.10.0-SNAPSHOT]
   * upgrade mongo-java-driver to 3.12.0
-
-## [v2.11.0-SNAPSHOT]
-  * upgrade mongo-java-driver to 3.12.0
-
-## [v2.10.0-SNAPSHOT]
   * added input parameter to getSize method in order to be compatible with the needed of s3 client
+  * moved from version 2.13.1 to 3.0.0-SNAPSHOT
 
 ## [v2.9.0] 2019-10-19
   * SSL enabled
diff --git a/pom.xml b/pom.xml
index c60f517..79d11ed 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
 			<dependency>
 				<groupId>org.gcube.distribution</groupId>
 				<artifactId>gcube-bom</artifactId>
-				<version>1.4.0</version>
+				<version>2.0.1</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/resource/RequestObject.java b/src/main/java/org/gcube/contentmanagement/blobstorage/resource/MyFile.java
similarity index 96%
rename from src/main/java/org/gcube/contentmanagement/blobstorage/resource/RequestObject.java
rename to src/main/java/org/gcube/contentmanagement/blobstorage/resource/MyFile.java
index f1bd800..e1a7dc9 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/resource/RequestObject.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/resource/MyFile.java
@@ -19,7 +19,7 @@ import org.slf4j.LoggerFactory;
  * @author Roberto Cirillo (ISTI - CNR)
  *
  */
-public class RequestObject {
+public class MyFile {
 	
 // file name	
 	private String name;
@@ -95,10 +95,10 @@ public class RequestObject {
 
 	
 
-	final Logger logger = LoggerFactory.getLogger(RequestObject.class);
+	final Logger logger = LoggerFactory.getLogger(MyFile.class);
 
 	
-	public RequestObject(boolean lock){
+	public MyFile(boolean lock){
 		setLock(lock);
 	}
 	
@@ -108,7 +108,7 @@ public class RequestObject {
 	 * @param name name of the file
 	 * @param pathClient local path of the file
 	 */
-	public RequestObject(String author, String name, String pathClient, MemoryType memoryType){
+	public MyFile(String author, String name, String pathClient, MemoryType memoryType){
 		this.setOwner(author);
 		this.setName(name);
 		this.setLocalPath(pathClient);
@@ -123,7 +123,7 @@ public class RequestObject {
 	 * @param pathServer remote path of the file
 	 */
 
-	public RequestObject(String author, String name, String pathClient, String pathServer, MemoryType memoryType){
+	public MyFile(String author, String name, String pathClient, String pathServer, MemoryType memoryType){
 		this.setOwner(author);
 		this.setName(name);
 		this.setLocalPath(pathClient);
@@ -131,7 +131,7 @@ public class RequestObject {
 		setGcubeMemoryType(memoryType);
 	}
 	
-	public RequestObject(MemoryType memoryType) {
+	public MyFile(MemoryType memoryType) {
 		setGcubeMemoryType(memoryType);
 		
 	}
@@ -140,7 +140,7 @@ public class RequestObject {
 	 * build a new object with only the name setted
 	 * @param name file name
 	 */
-	public RequestObject(String name, MemoryType memoryType){
+	public MyFile(String name, MemoryType memoryType){
 		setName(name);
 		setGcubeMemoryType(memoryType);
 	}
@@ -245,8 +245,8 @@ public class RequestObject {
 	 * returns a copy of the current resource
 	 * @return the file copy
 	 */
-	public RequestObject copyProperties(){
-		RequestObject dest=new RequestObject(getGcubeMemoryType());
+	public MyFile copyProperties(){
+		MyFile dest=new MyFile(getGcubeMemoryType());
 		dest.setOwner(getOwner());
 		dest.setLocalDir(this.getLocalDir());
 		dest.setRemoteDir(this.getRemoteDir());
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/resource/OperationDefinition.java b/src/main/java/org/gcube/contentmanagement/blobstorage/resource/OperationDefinition.java
index d714d0f..a5e4cf4 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/resource/OperationDefinition.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/resource/OperationDefinition.java
@@ -16,7 +16,7 @@ package org.gcube.contentmanagement.blobstorage.resource;
  * 
  * It means that the client would be upload a file that have an absolute local path defined in pathClient field,
  * on the remote location identifies by pathServer field of the resource MyFile
- * @see org.gcube.contentmanagement.blobstorage.resource.RequestObject
+ * @see org.gcube.contentmanagement.blobstorage.resource.MyFile
  * 
  * @author Roberto Cirillo (ISTI-CNR)
  *
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/IClient.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/IClient.java
index b005070..a2061a1 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/IClient.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/IClient.java
@@ -1,6 +1,7 @@
 package org.gcube.contentmanagement.blobstorage.service;
 
 
+import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
 import org.gcube.contentmanagement.blobstorage.service.impl.AmbiguousResource;
 import org.gcube.contentmanagement.blobstorage.service.impl.LocalResource;
 import org.gcube.contentmanagement.blobstorage.service.impl.RemoteResource;
@@ -264,4 +265,6 @@ public abstract RemoteResourceBoolean exist();
 
 public abstract RemoteResourceBoolean exist(String backendType);
 
+public MemoryType getGcubeMemoryType();
+
 }
\ No newline at end of file
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryBucket.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryBucket.java
index 14a957f..02f3cef 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryBucket.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryBucket.java
@@ -5,7 +5,7 @@ import java.net.UnknownHostException;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.StorageObject;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
@@ -92,7 +92,7 @@ public class DirectoryBucket {
  * @param bucket remote file to remove
  */
 	@Deprecated
-	public void removeKeysOnDirBucket(RequestObject resource, String bucket, String rootArea, String backendType, String[] dbNames){
+	public void removeKeysOnDirBucket(MyFile resource, String bucket, String rootArea, String backendType, String[] dbNames){
 		if(logger.isDebugEnabled())
 			logger.debug("CHECK REMOVE: "+bucket);
 		String[] bucketList=null;
@@ -121,7 +121,7 @@ public class DirectoryBucket {
 	 * remove a remote directory and all the files that the remote directory contains
 	 * @param bucket
 	 */
-	public String removeDirBucket(RequestObject resource, String bucket, String rootArea, String backendType, String[] dbNames){
+	public String removeDirBucket(MyFile resource, String bucket, String rootArea, String backendType, String[] dbNames){
 		if(logger.isDebugEnabled())
 			logger.debug("CHECK REMOVE: "+bucket);
 		String[] bucketList=null;
@@ -211,7 +211,7 @@ public class DirectoryBucket {
 	 * @param bucketCoded bucketName coded
 	 * @param tm a client for the cluster
 	 */
-	public String searchInBucket(RequestObject resource, String name, String bucketCoded,
+	public String searchInBucket(MyFile resource, String name, String bucketCoded,
 			TransportManager tm, String rootArea) {
 		Map <String, StorageObject> dirs=null;
 		try{
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryEntity.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryEntity.java
index 2508483..bab7704 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryEntity.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/directoryOperation/DirectoryEntity.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.directoryOperation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 
 
 /**
@@ -38,7 +38,7 @@ public class DirectoryEntity {
 		setAuthor(author);
 	}
 	
-	public DirectoryEntity(String dir, String author, RequestObject file){
+	public DirectoryEntity(String dir, String author, MyFile file){
 		setDirectory(dir);
 		setAuthor(author);
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/AmbiguousResource.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/AmbiguousResource.java
index eda5a1d..9f21fd4 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/AmbiguousResource.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/AmbiguousResource.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.LOCAL_RESOURCE;
 /**
  * This class is used from methods that can have both a RemoteResource or a LocalResource
@@ -10,7 +10,7 @@ import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.LOCA
  */
 public class AmbiguousResource extends RemoteResource {
 	
-	public AmbiguousResource(RequestObject file, ServiceEngine engine) {
+	public AmbiguousResource(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/LocalResource.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/LocalResource.java
index 9c02ed5..c37e740 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/LocalResource.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/LocalResource.java
@@ -2,7 +2,7 @@ package org.gcube.contentmanagement.blobstorage.service.impl;
 
 import java.io.InputStream;
 import java.io.OutputStream;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.LOCAL_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 
@@ -17,7 +17,7 @@ import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMO
 public class LocalResource extends Resource{
 
 	
-	public LocalResource(RequestObject file, ServiceEngine engine) {
+	public LocalResource(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 
@@ -46,7 +46,7 @@ public class LocalResource extends Resource{
 		if(getMyFile() != null){
 			getMyFile().setInputStream(is);
 		}else{
-			setMyFile(new RequestObject(engine.getGcubeMemoryType()));
+			setMyFile(new MyFile(engine.getGcubeMemoryType()));
 			getMyFile().setInputStream(is);
 		}
 		getMyFile().setLocalResource(LOCAL_RESOURCE.INPUT_STREAM);
@@ -62,7 +62,7 @@ public class LocalResource extends Resource{
 		if(getMyFile() != null){
 			getMyFile().setOutputStream(os);
 		}else{
-			setMyFile(new RequestObject(engine.getGcubeMemoryType()));
+			setMyFile(new MyFile(engine.getGcubeMemoryType()));
 			getMyFile().setOutputStream(os);
 		}
 		getMyFile().setLocalResource(LOCAL_RESOURCE.OUTPUT_STREAM);
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResource.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResource.java
index 4eec85d..092a85b 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResource.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResource.java
@@ -4,11 +4,10 @@ import java.net.UnknownHostException;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryEntity;
-import org.gcube.contentmanagement.blobstorage.service.operation.OperationManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
@@ -29,7 +28,7 @@ public class RemoteResource extends Resource{
 	
 	TransportManager tm;
 
-	public RemoteResource(RequestObject file, ServiceEngine engine) {
+	public RemoteResource(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 		logger.info("file gCube parameter costructor: "+file.getGcubeAccessType()+" "+file.getGcubeScope());
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceBoolean.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceBoolean.java
index 1155ce3..1daf672 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceBoolean.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceBoolean.java
@@ -3,7 +3,7 @@
  */
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 
@@ -17,7 +17,7 @@ public class RemoteResourceBoolean extends Resource{
 	 * @param file
 	 * @param engine
 	 */
-	public RemoteResourceBoolean(RequestObject file, ServiceEngine engine) {
+	public RemoteResourceBoolean(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 		logger.info("file gCube parameter costructor: "+file.getGcubeAccessType()+" "+file.getGcubeScope());
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceComplexInfo.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceComplexInfo.java
index bf5bdbf..3bc370b 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceComplexInfo.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceComplexInfo.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 
@@ -12,7 +12,7 @@ import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendEx
 public class RemoteResourceComplexInfo  extends Resource{
 
 
-	public RemoteResourceComplexInfo(RequestObject file, ServiceEngine engine) {
+	public RemoteResourceComplexInfo(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 	
@@ -23,7 +23,7 @@ public class RemoteResourceComplexInfo  extends Resource{
 	 * @throws RemoteBackendException  if there are runtime exception from the remote backend
 	 */
 
-	public RequestObject  RFile(String path) throws RemoteBackendException{
+	public MyFile  RFile(String path) throws RemoteBackendException{
 		setMyFile(setGenericProperties(engine.getContext(), engine.owner, path, "remote"));
 		getMyFile().setRemotePath(path);
 		getMyFile().setRemoteResource(REMOTE_RESOURCE.PATH);
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceDestination.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceDestination.java
index 999a061..3ae2470 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceDestination.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceDestination.java
@@ -1,7 +1,7 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 
@@ -12,7 +12,7 @@ import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendEx
  */
 public class RemoteResourceDestination extends Resource{
 
-	public RemoteResourceDestination(RequestObject file, ServiceEngine engine) {
+	public RemoteResourceDestination(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceFolderInfo.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceFolderInfo.java
index 4783385..d151d2e 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceFolderInfo.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceFolderInfo.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 
@@ -18,7 +18,7 @@ public class RemoteResourceFolderInfo extends Resource {
 	private String gcubeAccessType;
 	private String gcubeMemoryType;
 
-	public RemoteResourceFolderInfo(RequestObject file, ServiceEngine engine) {
+	public RemoteResourceFolderInfo(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceInfo.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceInfo.java
index 6e5df68..6297d2b 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceInfo.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceInfo.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 
@@ -14,7 +14,7 @@ import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendEx
 public class RemoteResourceInfo extends Resource{
 
 
-	public RemoteResourceInfo(RequestObject file, ServiceEngine engine) {
+	public RemoteResourceInfo(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceSource.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceSource.java
index b17ea16..345f419 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceSource.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/RemoteResourceSource.java
@@ -1,7 +1,7 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.LOCAL_RESOURCE;
 
 /**
@@ -11,7 +11,7 @@ import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.LOCA
  */
 public class RemoteResourceSource extends Resource {
 
-	public RemoteResourceSource(RequestObject file, ServiceEngine engine) {
+	public RemoteResourceSource(MyFile file, ServiceEngine engine) {
 		super(file, engine);
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/Resource.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/Resource.java
index 51cbbfb..e48c901 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/Resource.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/Resource.java
@@ -1,7 +1,7 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
@@ -19,11 +19,11 @@ public class Resource {
 
 	final Logger logger = LoggerFactory.getLogger(ServiceEngine.class);
 	protected static final String BACKEND_STRING_SEPARATOR="%";
-	protected RequestObject file;
+	protected MyFile file;
 	protected ServiceEngine engine;
 	
 	
-	public Resource(RequestObject file, ServiceEngine engine){
+	public Resource(MyFile file, ServiceEngine engine){
 		setMyFile(file);
 		setEngine(engine);
 	}
@@ -36,11 +36,11 @@ public class Resource {
 		this.engine = engine;
 	}
 
-	protected RequestObject getMyFile(){
+	protected MyFile getMyFile(){
 		return file;
 	}
 	
-	protected void setMyFile(RequestObject f){
+	protected void setMyFile(MyFile f){
 		if (f!=null)
 			file=f;
 		else
@@ -56,11 +56,11 @@ public class Resource {
 	 * @param type remote or local
 	 * @return the current resource
 	 */
-	protected RequestObject setGenericProperties(String context, String owner, String path, String type) {
+	protected MyFile setGenericProperties(String context, String owner, String path, String type) {
 		if((path != null) && (path.length()>0)){
 			if(ObjectId.isValid(path)){
 				if(file==null)
-					file= new RequestObject(path, engine.getGcubeMemoryType());
+					file= new MyFile(path, engine.getGcubeMemoryType());
 				String id = file.getId();
 				if((id != null) && (!id.isEmpty()))
 					file.setId2(path);
@@ -75,7 +75,7 @@ public class Resource {
 					logger.debug("path(String) - name: " + name);
 				}
 				if(file == null){
-					file= new RequestObject(name, engine.getGcubeMemoryType());
+					file= new MyFile(name, engine.getGcubeMemoryType());
 				}else{
 					file.setName(name);
 				}
@@ -107,7 +107,7 @@ public class Resource {
 		return file;
 	}
 	
-	protected Object getRemoteObject(RequestObject file, String[] backend, String[] vltBackend)throws RemoteBackendException {
+	protected Object getRemoteObject(MyFile file, String[] backend, String[] vltBackend)throws RemoteBackendException {
 		Object obj=null;
 		try{
 			obj=retrieveRemoteObject(file, backend);
@@ -122,7 +122,7 @@ public class Resource {
 		return obj;
 	}
 	
-	protected Object retrieveRemoteObject(RequestObject file, String[] backend) throws RemoteBackendException {
+	protected Object retrieveRemoteObject(MyFile file, String[] backend) throws RemoteBackendException {
 		Object obj=null;
 			if(((file.getInputStream() != null) || (file.getOutputStream()!=null)) || ((file.getLocalPath() != null) || (file.getRemotePath() != null)))
 				obj=engine.service.startOperation(file,file.getRemotePath(), file.getOwner(), backend, Costants.DEFAULT_CHUNK_OPTION, file.getRootPath(), file.isReplace(), engine.getRegion(), engine.getToken());
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/ServiceEngine.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/ServiceEngine.java
index 907851f..0f259e0 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/ServiceEngine.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/impl/ServiceEngine.java
@@ -1,6 +1,5 @@
 package org.gcube.contentmanagement.blobstorage.service.impl;
 
-import java.io.UnsupportedEncodingException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -9,7 +8,7 @@ import java.util.Set;
 
 import org.gcube.contentmanagement.blobstorage.resource.AccessType;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.resource.StorageObject;
@@ -18,7 +17,6 @@ import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Bucket
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter.EncryptionException;
 import org.gcube.contentmanagement.blobstorage.service.operation.*;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -45,7 +43,7 @@ public class ServiceEngine implements IClient {
 	public String[] primaryBackend;
 	public String[] volatileBackend;
 	protected OperationManager service;
-	protected RequestObject file;
+	protected MyFile file;
 	protected String bucket;
 	protected String bucketID;
 	protected String author;
@@ -414,7 +412,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource remove(String backendType){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(getGcubeMemoryType());
+		file=new MyFile(getGcubeMemoryType());
 		file.setGcubeAccessType(this.getGcubeAccessType());
 		file.setGcubeScope(this.getGcubeScope());
 		file.setOwnerGcube(this.getOwnerGcube());
@@ -428,11 +426,11 @@ public class ServiceEngine implements IClient {
 	}
 
 	
-	public RequestObject getMyFile() {
+	public MyFile getMyFile() {
 		return file;
 	}
 
-	public void setMyFile(RequestObject myFile) {
+	public void setMyFile(MyFile myFile) {
 		this.file = myFile;
 	}
 	
@@ -459,7 +457,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource showDir(String backendType){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGcubeAccessType(this.getGcubeAccessType());
 		file.setGcubeScope(this.getGcubeScope());
 		file.setOwnerGcube(this.getOwnerGcube());
@@ -497,7 +495,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource removeDir(String backendType){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGcubeAccessType(this.getGcubeAccessType());
 		file.setGcubeScope(this.getGcubeScope());
 		file.setOwnerGcube(this.getOwnerGcube());
@@ -529,7 +527,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource getUrl(String backendType, boolean forceCreation){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGcubeAccessType(this.getGcubeAccessType());
 		file.setGcubeScope(this.getGcubeScope());
 		file.setOwnerGcube(this.getOwnerGcube());
@@ -564,7 +562,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource getHttpUrl(String backendType, boolean forceCreation){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGcubeAccessType(this.getGcubeAccessType());
 		file.setGcubeScope(this.getGcubeScope());
 		file.setOwnerGcube(this.getOwnerGcube());
@@ -601,7 +599,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource getHttpsUrl(String backendType, boolean forceCreation){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGcubeAccessType(this.getGcubeAccessType());
 		file.setGcubeScope(this.getGcubeScope());
 		file.setOwnerGcube(this.getOwnerGcube());
@@ -674,7 +672,7 @@ public class ServiceEngine implements IClient {
 
 	public AmbiguousResource lock(String backendType) {
 		backendType=setBackendType(backendType);
-		file = new RequestObject(true);
+		file = new MyFile(true);
 		setCurrentOperation("lock");
 		this.service=new OperationManager(primaryBackend, user, password,  getCurrentOperation(), file, backendType, getDbNames(), getToken());
 		file=setOperationInfo(file, OPERATION.LOCK);
@@ -690,7 +688,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public AmbiguousResource unlock(String key, String backendType) {
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setLockedKey(key);
 //		put(true);
 		setCurrentOperation("unlock");
@@ -708,7 +706,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResourceInfo getTTL(String backendType) {
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 //		put(true);
 		setCurrentOperation("getTTL");
 		file=setOperationInfo(file, OPERATION.GET_TTL);
@@ -726,7 +724,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource getMetaInfo(String field, String backendType) {
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGenericPropertyField(field);
 		setCurrentOperation("getMetaInfo");
 		file=setOperationInfo(file, OPERATION.GET_META_INFO);
@@ -742,7 +740,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResource setMetaInfo(String field, String value, String backendType) {
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setGenericPropertyField(field);
 		file.setGenericPropertyValue(value);
 		setCurrentOperation("setMetaInfo");
@@ -759,7 +757,7 @@ public class ServiceEngine implements IClient {
 	@Override
 	public RemoteResourceInfo renewTTL(String key, String backendType) {
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 		file.setLockedKey(key);
 //		put(true);
 		setCurrentOperation("renewTTL");
@@ -1001,9 +999,9 @@ public class ServiceEngine implements IClient {
 //		this.gcubeMemoryType = gcubeMemoryType;
 	}
 
-	private RequestObject setOperationInfo(RequestObject file, OPERATION op) {
+	private MyFile setOperationInfo(MyFile file, OPERATION op) {
 		if(file==null)
-			file=new RequestObject(this.getGcubeMemoryType());
+			file=new MyFile(this.getGcubeMemoryType());
 		file.setOperation(op);
 		if(getWriteConcern() != null)
 			file.setWriteConcern(getWriteConcern());
@@ -1016,9 +1014,9 @@ public class ServiceEngine implements IClient {
 		return file;
 	}
 	
-	private RequestObject setMimeType(RequestObject file, String  mime) {
+	private MyFile setMimeType(MyFile file, String  mime) {
 		if(file==null)
-			file=new RequestObject(this.getGcubeMemoryType());
+			file=new MyFile(this.getGcubeMemoryType());
 		file.setMimeType(mime);
 		return file;
 	}
@@ -1097,7 +1095,7 @@ public class ServiceEngine implements IClient {
 	
 	public RemoteResource getRemotePath(){
 		backendType=setBackendType(backendType);
-		file=new RequestObject(this.getGcubeMemoryType());
+		file=new MyFile(this.getGcubeMemoryType());
 //		put(true);
 		setCurrentOperation("getRemotePath");
 		file=setOperationInfo(file, OPERATION.GET_REMOTE_PATH);
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkConsumer.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkConsumer.java
index c9d68ef..151a675 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkConsumer.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkConsumer.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.operation.UploadOperator;
@@ -29,7 +29,7 @@ public class ChunkConsumer implements Runnable {
 	  boolean isChunk=false;
 	  String[] dbNames;
 	  public static ThreadLocal<TransportManager> client=new ThreadLocal<TransportManager>();
-	  public static ThreadLocal<RequestObject> resource=new ThreadLocal<RequestObject>();
+	  public static ThreadLocal<MyFile> resource=new ThreadLocal<MyFile>();
 	  private boolean replaceOpt;
 	  Thread producer;
 
@@ -37,7 +37,7 @@ public class ChunkConsumer implements Runnable {
 		if (logger.isDebugEnabled()) {
 			logger.debug("run() - start");
 		}
-	    RequestObject request = null;
+	    MyFile request = null;
 	    synchronized (ChunkConsumer.class) {
 	    	request=monitor.getRequest();
 	    	resource.set(request);
@@ -49,7 +49,7 @@ public class ChunkConsumer implements Runnable {
 		}
 	  }
 
-	private void connection(RequestObject richiesta) {
+	private void connection(MyFile richiesta) {
 		if (logger.isDebugEnabled()) {
 			logger.debug("connection(MyFile) - start");
 		}
@@ -108,7 +108,7 @@ public class ChunkConsumer implements Runnable {
 	    return server;
 	} 
 	  
-	private void putInTerrastore(RequestObject myFile) {
+	private void putInTerrastore(MyFile myFile) {
 		if (logger.isDebugEnabled()) {
 			logger.debug("putInTerrastore(MyFile) - start");
 		}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkProducer.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkProducer.java
index dc6df35..10c4d99 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkProducer.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ChunkProducer.java
@@ -9,7 +9,7 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 import org.apache.commons.io.IOUtils;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -22,7 +22,7 @@ import org.slf4j.LoggerFactory;
  */
 public class ChunkProducer  implements Runnable{
 	
-	RequestObject resource;
+	MyFile resource;
 	long dimensionChunk;
 	int totChunks;
 	int nThreads;
@@ -31,7 +31,7 @@ public class ChunkProducer  implements Runnable{
 	String bucketName;
 	final Logger logger=LoggerFactory.getLogger(ChunkProducer.class);	
 	
-	public ChunkProducer(Monitor monitor, RequestObject resource, long dimensionChunk, int totChunks,
+	public ChunkProducer(Monitor monitor, MyFile resource, long dimensionChunk, int totChunks,
 			int nThreads, String bucket, ChunkConsumer consumer ) throws FileNotFoundException{
 		this.resource=resource;
 		this.dimensionChunk=dimensionChunk;
@@ -77,7 +77,7 @@ public class ChunkProducer  implements Runnable{
 			//---- creo i task e li invio al thread-pool ----
 			String key= getBucketName()+i;
 			resource.setKey(key);
-			RequestObject copy=resource.copyProperties();
+			MyFile copy=resource.copyProperties();
 			copy.setContent(chunk);
 			if(logger.isDebugEnabled()){
 				logger.debug("request in queue: "+key);
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Copy.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Copy.java
index 6f4026f..dd4ac91 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Copy.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Copy.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.net.UnknownHostException;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -19,12 +18,12 @@ public abstract class Copy  extends Operation{
 	final Logger logger=LoggerFactory.getLogger(Copy.class);
 	protected String sourcePath;
 	protected String destinationPath;
-	protected RequestObject resource;
+	protected MyFile resource;
 	public Copy(String[] server, String user, String pwd, String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 		this.sourcePath=file.getLocalPath();
 		this.destinationPath=remotePath;
@@ -37,9 +36,7 @@ public abstract class Copy  extends Operation{
 		
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String id=null;
 		try {
@@ -55,7 +52,7 @@ public abstract class Copy  extends Operation{
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 // For terrastore, the name of bucket is formed: path_____fileName_____author				
 		this.sourcePath=resource.getLocalPath();
@@ -70,12 +67,12 @@ public abstract class Copy  extends Operation{
 	
 //	public abstract String execute(MongoIO mongoPrimaryInstance) throws UnknownHostException;
 
-	public abstract String execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException;
-	public RequestObject getResource() {
+	public abstract String execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException;
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/CopyDir.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/CopyDir.java
index 487a5ad..9f414a7 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/CopyDir.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/CopyDir.java
@@ -2,10 +2,9 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.net.UnknownHostException;
 import java.util.List;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -23,13 +22,13 @@ public abstract class CopyDir extends Operation{
 	final Logger logger=LoggerFactory.getLogger(Download.class);
 	private String sourcePath;
 	private String destinationPath;
-	private RequestObject resource;
+	private MyFile resource;
 	
 	public CopyDir(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 		this.sourcePath=file.getLocalPath();
 		this.destinationPath=remotePath;
@@ -40,7 +39,7 @@ public abstract class CopyDir extends Operation{
 		
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm = getTransport(myFile);
 		List<String> ids=null;
 		try {
@@ -58,7 +57,7 @@ public abstract class CopyDir extends Operation{
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 //		DirectoryBucket dirBuc=new DirectoryBucket(server, user, password,  remotePath, author);
 // For terrastore, the name of bucket is formed: path_____fileName_____author				
@@ -71,7 +70,7 @@ public abstract class CopyDir extends Operation{
 		return bucket=destinationPath;
 	}
 	
-	public abstract List<String> execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException;
+	public abstract List<String> execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException;
 
 	public String getSourcePath() {
 		return sourcePath;
@@ -89,11 +88,11 @@ public abstract class CopyDir extends Operation{
 		this.destinationPath = destinationPath;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Download.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Download.java
index 8a15072..e4b50b9 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Download.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Download.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -27,13 +26,13 @@ public abstract class Download extends Operation{
 	protected String localPath;
 	protected String remotePath;
 	protected OutputStream os;
-	protected RequestObject resource;
+	protected MyFile resource;
 	
 	public Download(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 		this.localPath=file.getLocalPath();
 		this.remotePath=remotePath;
@@ -41,7 +40,7 @@ public abstract class Download extends Operation{
 		return getRemoteIdentifier(remotePath, rootArea);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		String id=null;
 		if (logger.isDebugEnabled()) {
 			logger.debug(" DOWNLOAD " + myFile.getRemotePath()
@@ -64,7 +63,7 @@ public abstract class Download extends Operation{
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 //		DirectoryBucket dirBuc=new DirectoryBucket(server, getUser(), getPassword(),  remotePath, author);
 // For terrastore, the name of bucket is formed: path_____fileName_____author				
@@ -77,11 +76,11 @@ public abstract class Download extends Operation{
 
 	public abstract ObjectId execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance) throws IOException;
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DownloadAndLock.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DownloadAndLock.java
new file mode 100644
index 0000000..57f8aaf
--- /dev/null
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DownloadAndLock.java
@@ -0,0 +1,65 @@
+package org.gcube.contentmanagement.blobstorage.service.operation;
+
+import java.io.OutputStream;
+
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
+import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
+import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
+import org.gcube.contentmanagement.blobstorage.transport.backend.operation.DownloadOperator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DownloadAndLock extends Operation {
+
+	final Logger logger=LoggerFactory.getLogger(Download.class);
+	private String localPath;
+	private String remotePath;
+	private OutputStream os;
+/**
+ * @deprecated
+ * @param server
+ * @param bucket
+ * @param monitor
+ * @param isChunk
+ * 
+ */
+	public DownloadAndLock(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
+		// TODO Auto-generated constructor stub
+			super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
+	}
+	
+	@Override
+	public String doIt(MyFile myFile) throws RemoteBackendException {
+		if (logger.isDebugEnabled()) {
+			logger.debug(" DOWNLOAD " + myFile.getRemotePath()
+					+ " in bucket: " + getBucket());
+		}
+		Download download = new DownloadOperator(getServer(), getUser(), getPassword(), getBucket(), getMonitor(), isChunk(), getBackendType(), getDbNames());
+		try {
+		//TODO add field for file lock
+				get(download,myFile, true);
+		} catch (Exception e) {
+			TransportManager tm=getTransport(myFile);
+			tm.close();
+			throw new RemoteBackendException(" Error in downloadAndLock operation ", e.getCause());
+		}
+		return null;
+	}
+
+	@Override
+	public String initOperation(MyFile file, String RemotePath,
+			String author, String[] server, String rootArea,
+			boolean replaceOption) {
+		this.localPath=file.getLocalPath();
+		this.remotePath=remotePath;
+		return getRemoteIdentifier(remotePath, rootArea);
+	}
+
+	@Override
+	public String initOperation(MyFile resource, String RemotePath,
+			String author, String[] server, String rootArea) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DuplicateFile.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DuplicateFile.java
index f627d94..24a1eae 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DuplicateFile.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/DuplicateFile.java
@@ -4,10 +4,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -24,15 +23,13 @@ public abstract class DuplicateFile extends Operation {
 	 */
     final Logger logger=LoggerFactory.getLogger(DuplicateFile.class);
 	protected String sourcePath;
-	protected RequestObject resource;
+	protected MyFile resource;
 
 	public DuplicateFile(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String id=null;
 		try {
@@ -48,7 +45,7 @@ public abstract class DuplicateFile extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,	String author, String[] server, String rootArea, boolean replaceOption) {
+	public String initOperation(MyFile file, String remotePath,	String author, String[] server, String rootArea, boolean replaceOption) {
 		if(remotePath != null){
 			boolean isId=ObjectId.isValid(remotePath);
 			setResource(file);
@@ -67,7 +64,7 @@ public abstract class DuplicateFile extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
@@ -82,11 +79,11 @@ public abstract class DuplicateFile extends Operation {
 		this.sourcePath = sourcePath;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Exist.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Exist.java
index 24dc7d4..6afc851 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Exist.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Exist.java
@@ -3,12 +3,11 @@
  */
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.bson.types.ObjectId;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -30,9 +29,7 @@ public class Exist extends Operation{
 			super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 		}
 		
-		public String doIt(RequestObject myFile) throws RemoteBackendException{
-//			TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//			TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+		public String doIt(MyFile myFile) throws RemoteBackendException{
 			TransportManager tm=getTransport(myFile);
 			boolean isPresent=false;
 			try {
@@ -47,7 +44,7 @@ public class Exist extends Operation{
 		}
 
 		@Override
-		public String initOperation(RequestObject file, String remotePath,
+		public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 //			String[] dirs= remotePath.split(file_separator);
 			if(logger.isDebugEnabled())
@@ -64,7 +61,7 @@ public class Exist extends Operation{
 
 
 		@Override
-		public String initOperation(RequestObject resource, String RemotePath,
+		public String initOperation(MyFile resource, String RemotePath,
 				String author, String[] server, String rootArea) {
 			throw new IllegalArgumentException("Input/Output stream is not compatible with Exist operation");
 		}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/FileWriter.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/FileWriter.java
index 4a6c61b..2d5ad8b 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/FileWriter.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/FileWriter.java
@@ -2,7 +2,7 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 //import org.apache.log4j.Logger;
 //import org.gcube.common.core.utils.logging.GCUBELog;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import java.io.IOException;
@@ -23,12 +23,7 @@ public class FileWriter extends Thread{
 	 final Logger logger=LoggerFactory.getLogger(FileWriter.class);   
 	  private Monitor monitor; 
 	  private int id; 
-//	  private MyFile myFile;
-//	  private byte[] encode;
-//	  private int offset;
-//	  private static int len=0;
 	  private OutputStream out;
-//	  private String path;
 	  private byte[] full;
 	  
 	  
@@ -36,7 +31,7 @@ public class FileWriter extends Thread{
 		if (logger.isDebugEnabled()) {
 			logger.debug("run() - start");
 		}
-	      RequestObject request = monitor.getRequest();
+	      MyFile request = monitor.getRequest();
 	      synchronized (FileWriter.class) {
 	    	  if(logger.isDebugEnabled()){
 		    	  logger.debug("recover request: "+request.getKey()+" length: "+request.getContent().length);  
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ForceClose.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ForceClose.java
index 38df94e..0fe9fc3 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ForceClose.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/ForceClose.java
@@ -1,8 +1,7 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -13,15 +12,12 @@ public class ForceClose extends Operation{
 	 * Logger for this class
 	 */
     final Logger logger=LoggerFactory.getLogger(GetSize.class);
-//	public String file_separator = ServiceEngine.FILE_SEPARATOR;//System.getProperty("file.separator");
 
 	public ForceClose(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		try {
 			tm.forceClose();
@@ -34,14 +30,14 @@ public class ForceClose extends Operation{
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		return null;
 	}
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		return null;
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderCount.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderCount.java
index b7ad759..5761809 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderCount.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderCount.java
@@ -1,11 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -22,9 +20,7 @@ public class GetFolderCount extends Operation {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType,dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		long dim=0;
 		try {
@@ -39,7 +35,7 @@ public class GetFolderCount extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		if(logger.isDebugEnabled())
 			logger.debug("remotePath: "+remotePath);
@@ -57,7 +53,7 @@ public class GetFolderCount extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderLastUpdate.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderLastUpdate.java
index 709952f..24ab51d 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderLastUpdate.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderLastUpdate.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
@@ -19,12 +19,12 @@ public class GetFolderLastUpdate extends Operation {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 	return null;
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 //		String[] dirs= remotePath.split(file_separator);
 		if(logger.isDebugEnabled())
@@ -43,7 +43,7 @@ public class GetFolderLastUpdate extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderSize.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderSize.java
index ed2baea..1f17681 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderSize.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetFolderSize.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -21,9 +20,7 @@ public class GetFolderSize extends Operation {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		long dim=0;
 		try {
@@ -38,7 +35,7 @@ public class GetFolderSize extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 //		String[] dirs= remotePath.split(file_separator);
 		if(logger.isDebugEnabled())
@@ -58,7 +55,7 @@ public class GetFolderSize extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpUrl.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpUrl.java
index b95dda1..9f7c3a5 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpUrl.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpUrl.java
@@ -4,13 +4,19 @@ import java.io.IOException;
 import java.net.URL;
 import org.apache.commons.codec.binary.Base64;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter.EncryptionException;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
+
+/**
+ * this class is replaced by getHttpsUrl
+ * @author roberto
+ *
+ */
 @Deprecated
 public class GetHttpUrl extends Operation {
 
@@ -27,13 +33,13 @@ public class GetHttpUrl extends Operation {
 	}
 	
 	@Override
-	public String initOperation(RequestObject file, String remotePath, String author,
+	public String initOperation(MyFile file, String remotePath, String author,
 			String[] server, String rootArea, boolean replaceOption) {
 		return getRemoteIdentifier(remotePath, rootArea);
 	}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
@@ -41,12 +47,13 @@ public class GetHttpUrl extends Operation {
 
 
 	@Override
-	public Object doIt(RequestObject myFile) throws RemoteBackendException {
+	public Object doIt(MyFile myFile) throws RemoteBackendException {
 		String resolverHost=myFile.getResolverHOst();
 		String urlBase="smp://"+resolverHost+Costants.URL_SEPARATOR;
 		String urlParam="";
 		try {
-			String id=getId(myFile.getAbsoluteRemotePath(), myFile.isForceCreation(), myFile.getGcubeMemoryType(), myFile.getWriteConcern(), myFile.getReadPreference());
+//			String id=getId(myFile.getAbsoluteRemotePath(), myFile.isForceCreation(), myFile.getGcubeMemoryType(), myFile.getWriteConcern(), myFile.getReadPreference());
+			String id=getId(myFile);
 			String phrase=myFile.getPassPhrase();
 //			urlParam =new StringEncrypter("DES", phrase).encrypt(id);
 			urlParam = new Encrypter("DES", phrase).encrypt(id);
@@ -71,7 +78,7 @@ public class GetHttpUrl extends Operation {
 		return httpUrl.toString();
 	}
 
-	
+	@Deprecated
 	private String getId(String path, boolean forceCreation, MemoryType memoryType, String writeConcern, String readPreference){
 		String id=null;
 		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password, getRegion(), getToken());
@@ -87,6 +94,21 @@ public class GetHttpUrl extends Operation {
 		return id;
 	}
 	
+	private String getId(MyFile myFile){
+		String id=null;
+		TransportManager tm=getTransport(myFile);
+		try {
+			id = tm.getId(bucket, myFile.isForceCreation());
+		} catch (Exception e) {
+			tm.close();
+			throw new RemoteBackendException(" Error in GetUrl operation. Problem to discover remote file:"+bucket+" "+ e.getMessage(), e.getCause());			}
+		if (logger.isDebugEnabled()) {
+			logger.debug(" PATH " + bucket);
+		}
+		return id;
+	}
+
+	
 	private URL translate(URL url) throws IOException {
 		logger.debug("translating: "+url);
 		String urlString=url.toString();
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpsUrl.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpsUrl.java
index d1be6fb..a7794f4 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpsUrl.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetHttpsUrl.java
@@ -5,7 +5,7 @@ import java.net.URL;
 
 import org.apache.commons.codec.binary.Base64;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter.EncryptionException;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
@@ -29,13 +29,13 @@ public class GetHttpsUrl extends Operation {
 	}
 	
 	@Override
-	public String initOperation(RequestObject file, String remotePath, String author,
+	public String initOperation(MyFile file, String remotePath, String author,
 			String[] server, String rootArea, boolean replaceOption) {
 		return getRemoteIdentifier(remotePath, rootArea);
 	}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
@@ -43,12 +43,13 @@ public class GetHttpsUrl extends Operation {
 
 
 	@Override
-	public Object doIt(RequestObject myFile) throws RemoteBackendException {
+	public Object doIt(MyFile myFile) throws RemoteBackendException {
 		String resolverHost=myFile.getResolverHOst();
 		String urlBase="smp://"+resolverHost+Costants.URL_SEPARATOR;
 		String urlParam="";
 		try {
 			String id=getId(myFile.getAbsoluteRemotePath(), myFile.isForceCreation(), myFile.getGcubeMemoryType(), myFile.getWriteConcern(), myFile.getReadPreference());
+//			String id=getId(myFile);
 			String phrase=myFile.getPassPhrase();
 //			urlParam =new StringEncrypter("DES", phrase).encrypt(id);
 			urlParam = new Encrypter("DES", phrase).encrypt(id);
@@ -73,6 +74,21 @@ public class GetHttpsUrl extends Operation {
 		return httpsUrl.toString();
 	}
 	
+	private String getId(MyFile myFile){
+		String id=null;
+		TransportManager tm=getTransport(myFile);
+		try {
+			id = tm.getId(bucket, myFile.isForceCreation());
+		} catch (Exception e) {
+			tm.close();
+			throw new RemoteBackendException(" Error in GetUrl operation. Problem to discover remote file:"+bucket+" "+ e.getMessage(), e.getCause());			}
+		if (logger.isDebugEnabled()) {
+			logger.debug(" PATH " + bucket);
+		}
+		return id;
+	}
+	
+	@Deprecated
 	private String getId(String path, boolean forceCreation, MemoryType memoryType, String writeConcern, String readPreference){
 		String id=null;
 		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password, getRegion(), getToken());
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaFile.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaFile.java
index c603920..3e420fd 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaFile.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaFile.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -30,9 +29,7 @@ public class GetMetaFile extends Operation{
 	 * size.
 	 * 
 	 */
-	public RequestObject doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public MyFile doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		long dim=0;
 		String id=null;
@@ -61,7 +58,7 @@ public class GetMetaFile extends Operation{
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 //		String[] dirs= remotePath.split(file_separator);
 		if(logger.isDebugEnabled())
@@ -78,7 +75,7 @@ public class GetMetaFile extends Operation{
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaInfo.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaInfo.java
index 7ebc4c1..8624de0 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaInfo.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetMetaInfo.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -20,9 +19,7 @@ public class GetMetaInfo extends Operation {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String value=null;
 		try {
@@ -38,7 +35,7 @@ public class GetMetaInfo extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 //		String[] dirs= remotePath.split(file_separator);
 		if(logger.isDebugEnabled())
@@ -55,7 +52,7 @@ public class GetMetaInfo extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("method not compatible with getMetaInfo operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetRemotePath.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetRemotePath.java
index 5d1ad2a..4bd182c 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetRemotePath.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetRemotePath.java
@@ -1,9 +1,8 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -20,9 +19,7 @@ public class GetRemotePath extends Operation{
 		super(server, user, pwd, bucket, monitor, isChunk, backendType,dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String path=null;
 		try {
@@ -45,7 +42,7 @@ public class GetRemotePath extends Operation{
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		rootPath=file.getRootPath();
 		logger.trace("rootArea is "+file.getRootPath()+ " absoluteremotepath is "+file.getAbsoluteRemotePath());
@@ -61,7 +58,7 @@ public class GetRemotePath extends Operation{
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetSize.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetSize.java
index 55d03b7..0209952 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetSize.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetSize.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -27,9 +26,7 @@ public class GetSize extends Operation{
 			super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 		}
 		
-		public String doIt(RequestObject myFile) throws RemoteBackendException{
-//			TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//			TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+		public String doIt(MyFile myFile) throws RemoteBackendException{
 			TransportManager tm=getTransport(myFile);
 			long dim=0;
 			try {
@@ -44,7 +41,7 @@ public class GetSize extends Operation{
 		}
 
 		@Override
-		public String initOperation(RequestObject file, String remotePath,
+		public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 			if(logger.isDebugEnabled())
 				logger.debug("remotePath: "+remotePath);
@@ -60,7 +57,7 @@ public class GetSize extends Operation{
 
 
 		@Override
-		public String initOperation(RequestObject resource, String RemotePath,
+		public String initOperation(MyFile resource, String RemotePath,
 				String author, String[] server, String rootArea) {
 			throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 		}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetTTL.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetTTL.java
index 5ff8d49..e448ac5 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetTTL.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetTTL.java
@@ -2,9 +2,8 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.io.OutputStream;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -27,7 +26,7 @@ public class GetTTL extends Operation {
 	}
 	
 	@Override
-	public String doIt(RequestObject myFile) throws RemoteBackendException {
+	public String doIt(MyFile myFile) throws RemoteBackendException {
 		if (logger.isDebugEnabled()) {
 			logger.debug(" DOWNLOAD " + myFile.getRemotePath()
 					+ " in bucket: " + bucket);
@@ -36,8 +35,6 @@ public class GetTTL extends Operation {
 		TransportManager tm=null;
 		try {
 		//aggiungere field per il lock del file	
-//			TransportManagerFactory tmf=new TransportManagerFactory(server, user, password);
-//			tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
 			tm=getTransport(myFile);
 			currentTTL=tm.getTTL(bucket);
 		} catch (Exception e) {
@@ -48,7 +45,7 @@ public class GetTTL extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea,
 			boolean replaceOption) {
 		this.localPath=file.getLocalPath();
@@ -60,7 +57,7 @@ public class GetTTL extends Operation {
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUrl.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUrl.java
index 9f869c2..d98bd1a 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUrl.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUrl.java
@@ -1,7 +1,7 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.Encrypter.EncryptionException;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
@@ -9,8 +9,12 @@ import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 
-
-
+/**
+ * this class is replaced by getHttpsUrl
+ * @author roberto
+ *
+ */
+@Deprecated 
 public class GetUrl  extends Operation{
 
 //	private OutputStream os;
@@ -21,13 +25,13 @@ public class GetUrl  extends Operation{
 	}
 	
 	@Override
-	public String initOperation(RequestObject file, String remotePath, String author,
+	public String initOperation(MyFile file, String remotePath, String author,
 			String[] server, String rootArea, boolean replaceOption) {
 		return getRemoteIdentifier(remotePath, rootArea);
 	}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
@@ -35,16 +39,15 @@ public class GetUrl  extends Operation{
 
 
 	@Override
-	public Object doIt(RequestObject myFile) throws RemoteBackendException {
+	public Object doIt(MyFile myFile) throws RemoteBackendException {
 		String resolverHost=myFile.getResolverHOst();
 		String urlBase="smp://"+resolverHost+Costants.URL_SEPARATOR;
 		String urlParam="";
 		try {
-			String id=getId(myFile.getAbsoluteRemotePath(), myFile.isForceCreation(), myFile.getGcubeMemoryType(), myFile.getWriteConcern(), myFile.getReadPreference());
+//			String id=getId(myFile.getAbsoluteRemotePath(), myFile.isForceCreation(), myFile.getGcubeMemoryType(), myFile.getWriteConcern(), myFile.getReadPreference());
+			String id=getId(myFile);
 			String phrase=myFile.getPassPhrase();
-//			urlParam =new StringEncrypter("DES", phrase).encrypt(id);
 			urlParam = new Encrypter("DES", phrase).encrypt(id);
-//			String urlEncoded=URLEncoder.encode(urlParam, "UTF-8");
 		} catch (EncryptionException e) {
 			throw new RemoteBackendException(" Error in getUrl operation problem to encrypt the string", e.getCause());
 		}
@@ -56,6 +59,7 @@ public class GetUrl  extends Operation{
 		return url;
 	}
 	
+	@Deprecated
 	private String getId(String path, boolean forceCreation, MemoryType memoryType, String writeConcern, String readPreference){
 		String id=null;
 		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password, getRegion(), getToken());
@@ -71,4 +75,18 @@ public class GetUrl  extends Operation{
 		return id;
 	}
 	
+	private String getId(MyFile myFile){
+		String id=null;
+		TransportManager tm=getTransport(myFile);
+		try {
+			id = tm.getId(bucket, myFile.isForceCreation());
+		} catch (Exception e) {
+			tm.close();
+			throw new RemoteBackendException(" Error in GetUrl operation. Problem to discover remote file:"+bucket+" "+ e.getMessage(), e.getCause());			}
+		if (logger.isDebugEnabled()) {
+			logger.debug(" PATH " + bucket);
+		}
+		return id;
+	}
+	
 }
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalItems.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalItems.java
index b89c084..181f845 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalItems.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalItems.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -19,9 +18,7 @@ public class GetUserTotalItems extends Operation {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String dim=null;
 		logger.info("check user total items for user: "+getOwner()+ " user is "+user);
@@ -38,7 +35,7 @@ public class GetUserTotalItems extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		setOwner(author);
 		if((remotePath != null) && (remotePath.length() > 0)){
@@ -64,7 +61,7 @@ public class GetUserTotalItems extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalVolume.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalVolume.java
index c0e367a..52ddb74 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalVolume.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/GetUserTotalVolume.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -13,15 +12,12 @@ import org.slf4j.LoggerFactory;
 public class GetUserTotalVolume extends Operation {
 	
 	final Logger logger=LoggerFactory.getLogger(GetUserTotalVolume.class);
-//	public String file_separator = ServiceEngine.FILE_SEPARATOR;//System.getProperty("file.separator");
 
 	public GetUserTotalVolume(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String dim=null;
 		logger.info("check user total volume for user: "+getOwner()+ " user is "+user);
@@ -38,7 +34,7 @@ public class GetUserTotalVolume extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		setOwner(author);
 		if(remotePath!= null && remotePath.length()>0){
@@ -63,7 +59,7 @@ public class GetUserTotalVolume extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Link.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Link.java
index c71b35e..a28da4d 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Link.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Link.java
@@ -2,10 +2,9 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.net.UnknownHostException;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -20,12 +19,12 @@ public abstract class Link  extends Operation{
 	final Logger logger=LoggerFactory.getLogger(Download.class);
 	private String sourcePath;
 	private String destinationPath;
-	private RequestObject resource;
+	private MyFile resource;
 	public Link(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 		this.sourcePath=file.getLocalPath();
 		this.destinationPath=remotePath;
@@ -36,9 +35,7 @@ public abstract class Link  extends Operation{
 		
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String id=null;
 		try {
@@ -53,7 +50,7 @@ public abstract class Link  extends Operation{
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 // For terrastore, the name of bucket is formed: path_____fileName_____author				
 //		String bucketName=new BucketCoding().bucketFileCoding(remotePath, rootArea);
@@ -65,7 +62,7 @@ public abstract class Link  extends Operation{
 		return bucket=destinationPath;
 	}
 	
-	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException;
+	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException;
 
 	public String getSourcePath() {
 		return sourcePath;
@@ -83,11 +80,11 @@ public abstract class Link  extends Operation{
 		this.destinationPath = destinationPath;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Lock.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Lock.java
index 283d659..01ac820 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Lock.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Lock.java
@@ -2,7 +2,7 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.io.OutputStream;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
@@ -24,7 +24,7 @@ public abstract class Lock extends Operation {
 	protected String localPath;
 	protected String remotePath;
 	protected OutputStream os;
-	protected RequestObject resource;
+	protected MyFile resource;
 	protected Download download;
 
 	public Lock(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
@@ -33,7 +33,7 @@ public abstract class Lock extends Operation {
 	}
 	
 	@Override
-	public String doIt(RequestObject myFile) throws RemoteBackendException {
+	public String doIt(MyFile myFile) throws RemoteBackendException {
 		if (logger.isDebugEnabled()) {
 			logger.debug(" DOWNLOAD " + myFile.getRemotePath()
 					+ " in bucket: " + getBucket());
@@ -44,8 +44,6 @@ public abstract class Lock extends Operation {
 			Download download = new DownloadOperator(getServer(), getUser(), getPassword(), getBucket(), getMonitor(), isChunk(), getBackendType(), getDbNames());
 			unlockKey=get(download, myFile, true);
 		} catch (Exception e) {
-//			TransportManagerFactory tmf=new TransportManagerFactory(getServer(), getUser(), getPassword());
-//			TransportManager tm=tmf.getTransport(getBackendType(), myFile.getGcubeMemoryType(), getDbNames(), myFile.getWriteConcern(), myFile.getReadPreference());
 			TransportManager tm=getTransport(myFile);
 			tm.close();
 			throw new RemoteBackendException(" Error in lock operation ", e.getCause());
@@ -54,7 +52,7 @@ public abstract class Lock extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea,
 			boolean replaceOption) {
 		String bucketName=null;
@@ -73,13 +71,13 @@ public abstract class Lock extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
 	}
 
-	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String serverLocation) throws Exception;
+	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String serverLocation) throws Exception;
 
 	public String getLocalPath() {
 		return localPath;
@@ -105,11 +103,11 @@ public abstract class Lock extends Operation {
 		this.os = os;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Monitor.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Monitor.java
index bb5b204..a86b3d2 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Monitor.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Monitor.java
@@ -2,7 +2,7 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 //import org.apache.log4j.Logger;
 //import org.gcube.common.core.utils.logging.GCUBELog;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -22,9 +22,9 @@ public class Monitor {
 //	private static final GCUBELog logger = new GCUBELog(Monitor.class); 
 	final Logger logger=LoggerFactory.getLogger(Monitor.class); 
   // request queue 
-  private Vector<RequestObject> requestQueue = new Vector<RequestObject>();   
+  private Vector<MyFile> requestQueue = new Vector<MyFile>();   
   // fetch the first request in the queue
-  public synchronized RequestObject getRequest(){
+  public synchronized MyFile getRequest(){
 		if (logger.isDebugEnabled()) {
 			logger.debug("getRequest() - start");
 		}
@@ -36,7 +36,7 @@ public class Monitor {
 				logger.error("getRequest()", e);
       } 
     } 
-    RequestObject myFile=requestQueue.remove(0);
+    MyFile myFile=requestQueue.remove(0);
     notifyAll();
 	if (logger.isDebugEnabled()) {
 		logger.debug("getRequest() - end");
@@ -44,7 +44,7 @@ public class Monitor {
     return myFile;
   } 
   
-  public synchronized RequestObject getRequest(ChunkProducer producer){
+  public synchronized MyFile getRequest(ChunkProducer producer){
 		if (logger.isDebugEnabled()) {
 			logger.debug("getRequest(ChunkProducer) - start");
 		}
@@ -56,7 +56,7 @@ public class Monitor {
 				logger.error("getRequest(ChunkProducer)", e);
 	      } 
 	    } 
-	    RequestObject myFile=requestQueue.remove(0);
+	    MyFile myFile=requestQueue.remove(0);
 	    notifyAll();
 		if (logger.isDebugEnabled()) {
 			logger.debug("getRequest(ChunkProducer) - end");
@@ -65,7 +65,7 @@ public class Monitor {
 	  } 
 
   // Accoda una nuova richiesta 
-  public synchronized void putRequest(RequestObject richiesta){
+  public synchronized void putRequest(MyFile richiesta){
 		if (logger.isDebugEnabled()) {
 			logger.debug("putRequest(MyFile) - start");
 			logger.debug("request in queue, queue size: "+requestQueue.size());  
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Move.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Move.java
index 5b10cba..ce96b54 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Move.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Move.java
@@ -1,14 +1,11 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import java.io.OutputStream;
 import java.net.UnknownHostException;
 
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
-import org.gcube.contentmanagement.blobstorage.service.directoryOperation.DirectoryBucket;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -23,12 +20,12 @@ public abstract class Move  extends Operation{
 	final Logger logger=LoggerFactory.getLogger(Download.class);
 	protected String sourcePath;
 	protected String destinationPath;
-	protected RequestObject resource;
+	protected MyFile resource;
 	public Move(String[] server,  String user, String pwd, String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 		this.sourcePath=file.getLocalPath();
 		this.destinationPath=remotePath;
@@ -39,13 +36,10 @@ public abstract class Move  extends Operation{
 		
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String id=null;
 		try {
-//			id=tm.move(myFile, sourcePath, destinationPath);
 			id=tm.move(this);
 		} catch (UnknownHostException e) {
 			tm.close();
@@ -57,7 +51,7 @@ public abstract class Move  extends Operation{
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 		this.sourcePath=resource.getLocalPath();
 		this.destinationPath=resource.getRemotePath();
@@ -67,7 +61,7 @@ public abstract class Move  extends Operation{
 		return bucket=destinationPath;
 	}
 
-	public abstract String execute(MongoIOManager mongoPrimaryInstance,  MemoryType memoryType, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException;
+	public abstract String execute(MongoIOManager mongoPrimaryInstance,  MemoryType memoryType, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException;
 
 	public String getSourcePath() {
 		return sourcePath;
@@ -85,11 +79,11 @@ public abstract class Move  extends Operation{
 		this.destinationPath = destinationPath;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/MoveDir.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/MoveDir.java
index ad20f91..d0115fa 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/MoveDir.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/MoveDir.java
@@ -4,10 +4,9 @@ import java.net.UnknownHostException;
 import java.util.List;
 
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -21,13 +20,13 @@ public abstract class MoveDir extends Operation{
 	final Logger logger=LoggerFactory.getLogger(Download.class);
 	private String sourcePath;
 	private String destinationPath;
-	private RequestObject resource;
+	private MyFile resource;
 //	private OutputStream os;
 	public MoveDir(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea, boolean replaceOption) {
 		this.sourcePath=file.getLocalPath();
 		this.destinationPath=remotePath;
@@ -38,9 +37,7 @@ public abstract class MoveDir extends Operation{
 		
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		List<String>ids=null;
 		try {
@@ -55,7 +52,7 @@ public abstract class MoveDir extends Operation{
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 		this.sourcePath=resource.getLocalPath();
 		this.destinationPath=resource.getRemotePath();
@@ -65,7 +62,7 @@ public abstract class MoveDir extends Operation{
 		return bucket=destinationPath;
 	}
 	
-	public abstract List<String> execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath, MemoryType memoryType) throws UnknownHostException;
+	public abstract List<String> execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath, MemoryType memoryType) throws UnknownHostException;
 
 	public String getSourcePath() {
 		return sourcePath;
@@ -83,11 +80,11 @@ public abstract class MoveDir extends Operation{
 		this.destinationPath = destinationPath;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Operation.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Operation.java
index fb111e6..651fdef 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Operation.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Operation.java
@@ -1,9 +1,8 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
@@ -15,7 +14,6 @@ import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
-import java.util.Objects;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
@@ -101,7 +99,7 @@ public abstract class Operation {
 	 * @return a String that identifies a file
 	 * @throws Exception
 	 */
-	public  String put(Upload upload, RequestObject resource, boolean isChunk, boolean isBase64, boolean replaceOption, boolean isLock) throws Exception{
+	public  String put(Upload upload, MyFile resource, boolean isChunk, boolean isBase64, boolean replaceOption, boolean isLock) throws Exception{
 		if (logger.isDebugEnabled()) {
 			logger.debug("put(MyFile, boolean, boolean) - start");
 		}
@@ -163,8 +161,6 @@ public abstract class Operation {
 		}else{
 			if(logger.isDebugEnabled())
 				logger.debug("NO THREAD POOL USED");
-//			TransportManagerFactory tmf=new TransportManagerFactory(server, user, password);
-//			TransportManager tm=tmf.getTransport(backendType, resource.getGcubeMemoryType(), dbNames, resource.getWriteConcern(), resource.getReadPreference());
 			TransportManager tm=getTransport(resource);
 			String objectId=tm.uploadManager(upload, resource, bucket, bucket+"_1", replaceOption);
 			return objectId;
@@ -177,7 +173,7 @@ public abstract class Operation {
 	 * @throws IOException
 	 * @throws InterruptedException
 	 */
-	public String get(Download download, RequestObject myFile, boolean isLock) throws IOException, InterruptedException, Exception {
+	public String get(Download download, MyFile myFile, boolean isLock) throws IOException, InterruptedException, Exception {
 		if (logger.isDebugEnabled()) {
 			logger.debug("get(String) - start");
 		}
@@ -189,7 +185,7 @@ public abstract class Operation {
 			startPThreadChunk(download, myFile, tm, path);
 
 		}else{
-			unlocKey=tm.downloadManager(download, myFile, bucket, RequestObject.class);
+			unlocKey=tm.downloadManager(download, myFile, bucket, MyFile.class);
 		}
 		
 			if((path!=null) && (new File(path).length()>0)){
@@ -209,12 +205,12 @@ public abstract class Operation {
 	 * @throws InterruptedException
 	 * @throws IOException
 	 */
-	protected void startPThreadChunk(Download download,RequestObject myFile, TransportManager tm,
+	protected void startPThreadChunk(Download download,MyFile myFile, TransportManager tm,
 			String path) throws FileNotFoundException, InterruptedException,
 			IOException {
 		ExecutorService executor = Executors.newFixedThreadPool (2);
 		int j=0;
-		RequestObject value=null;
+		MyFile value=null;
 		
 		if(logger.isInfoEnabled())
 			logger.info("localPath: "+path+" bucket: "+bucket);
@@ -228,7 +224,7 @@ public abstract class Operation {
 				logger.debug("get(String) -");
 			}
 		  	try{
-		  		value=(RequestObject) tm.get(download);
+		  		value=(MyFile) tm.get(download);
 		  	}catch(Exception e){
 				if (logger.isDebugEnabled()) {
 					logger.debug("get(String) - \n Trovate " + (j) + " key");
@@ -282,7 +278,7 @@ public abstract class Operation {
 	 * @return a generic object that contains operation results
 	 * @throws IllegalAccessException
 	 */
-	public abstract Object doIt(RequestObject myFile) throws RemoteBackendException;
+	public abstract Object doIt(MyFile myFile) throws RemoteBackendException;
 	
 	/**
 	 * init a operation
@@ -294,7 +290,7 @@ public abstract class Operation {
 	 * @param replaceOption if true the file will be replaced
 	 * @return a string that identifies the operation
 	 */
-	public abstract String initOperation(RequestObject file, String remoteIdentifier, String author, String[] server, String rootArea, boolean replaceOption);
+	public abstract String initOperation(MyFile file, String remoteIdentifier, String author, String[] server, String rootArea, boolean replaceOption);
 	
 	
 	/**
@@ -306,7 +302,7 @@ public abstract class Operation {
 	 * @param rootArea remote root path
 	 * @return a string that identifies the operation
 	 */
-	public abstract String initOperation(RequestObject resource, String remoteIdentifier, String author, String[] server, String rootArea);
+	public abstract String initOperation(MyFile resource, String remoteIdentifier, String author, String[] server, String rootArea);
 
 	public String getOwner() {
 		return owner;
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/OperationManager.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/OperationManager.java
index 4acabe6..3ff37ea 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/OperationManager.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/OperationManager.java
@@ -1,6 +1,6 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -21,7 +21,7 @@ public class OperationManager {
 	private String[] server;
 //	private int dimension;
 	private String operation;
-	private RequestObject resource;
+	private MyFile resource;
 	private boolean isChunk;
 	private String bucketName;
 	private String fileDest;
@@ -33,7 +33,7 @@ public class OperationManager {
 	
 	
 
-	public OperationManager(String[] server, String user, String password, String operation, RequestObject myFile, String backendType, String[] dbs, String token){
+	public OperationManager(String[] server, String user, String password, String operation, MyFile myFile, String backendType, String[] dbs, String token){
 		this.setServer(server);
 		this.setUser(user);
 		this.setPassword(password);
@@ -124,11 +124,11 @@ public class OperationManager {
 		this.operation = operation;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Remove.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Remove.java
index 566291c..37ff6cc 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Remove.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Remove.java
@@ -1,9 +1,8 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -24,9 +23,7 @@ public class Remove extends Operation{
 		super(server,user,pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		removeBucket(tm, bucket, myFile);
 		if (logger.isDebugEnabled()) {
@@ -36,7 +33,7 @@ public class Remove extends Operation{
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		String[] dirs= remotePath.split(Costants.FILE_SEPARATOR);
 		if(logger.isDebugEnabled())
@@ -64,7 +61,7 @@ public class Remove extends Operation{
 	 * @param bucketName indicates the remote directory to remove
 	 * @throws RemoteBackendException 
 	 */
-		public void removeBucket(TransportManager tm, String bucketName, RequestObject resource) throws RemoteBackendException {
+		public void removeBucket(TransportManager tm, String bucketName, MyFile resource) throws RemoteBackendException {
 			if(logger.isDebugEnabled())
 			logger.debug("removing file bucket: "+bucketName);
 			try {
@@ -77,7 +74,7 @@ public class Remove extends Operation{
 		}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with remove operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/RenewTTL.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/RenewTTL.java
index 1f1924c..ad0327e 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/RenewTTL.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/RenewTTL.java
@@ -2,10 +2,9 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.io.OutputStream;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -29,9 +28,7 @@ public class RenewTTL extends Operation {
 	}
 	
 	@Override
-	public String doIt(RequestObject myFile) throws RemoteBackendException {
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException {
 		TransportManager tm=getTransport(myFile);
 		long ttl=-1;
 		try {
@@ -45,7 +42,7 @@ public class RenewTTL extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea,
 			boolean replaceOption) {
 		this.localPath=file.getLocalPath();
@@ -56,7 +53,7 @@ public class RenewTTL extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SetMetaInfo.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SetMetaInfo.java
index c784b96..f084018 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SetMetaInfo.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SetMetaInfo.java
@@ -1,10 +1,9 @@
 package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -20,9 +19,7 @@ public class SetMetaInfo extends Operation {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		try {
 			tm.setFileProperty(bucket, myFile.getGenericPropertyField(), myFile.getGenericPropertyValue());
@@ -38,7 +35,7 @@ public class SetMetaInfo extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 		String author, String[] server, String rootArea, boolean replaceOption) {
 		if(logger.isDebugEnabled())
 			logger.debug("remotePath: "+remotePath);
@@ -54,7 +51,7 @@ public class SetMetaInfo extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		throw new IllegalArgumentException("Input/Output stream is not compatible with getSize operation");
 	}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SoftCopy.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SoftCopy.java
index 906fde5..79ed912 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SoftCopy.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/SoftCopy.java
@@ -5,11 +5,9 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.net.UnknownHostException;
 
-import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.slf4j.Logger;
@@ -27,29 +25,14 @@ public abstract class SoftCopy extends Operation {
     final Logger logger=LoggerFactory.getLogger(SoftCopy.class);
 	private String sourcePath;
 	private String destinationPath;
-	private RequestObject resource;
+	private MyFile resource;
 	
 	
 	public SoftCopy(String[] server, String user, String pwd, String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
 	}
 	
-	public String initOperation(RequestObject file, String remotePath,	String author, String[] server, String rootArea, boolean replaceOption) {
-//			if(remotePath != null){
-//				boolean isId=ObjectId.isValid(remotePath);
-//				setResource(file);
-//				if(!isId){
-////					String[] dirs= remotePath.split(file_separator);
-//					if(logger.isDebugEnabled())
-//						logger.debug("remotePath: "+remotePath);
-//					String buck=null;
-//					buck = new BucketCoding().bucketFileCoding(remotePath, rootArea);
-//					return bucket=buck;
-//				}else{
-//					return bucket=remotePath;
-//				}
-//			}return bucket=null;//else throw new RemoteBackendException("argument cannot be null");
-
+	public String initOperation(MyFile file, String remotePath,	String author, String[] server, String rootArea, boolean replaceOption) {
 		this.sourcePath=file.getLocalPath();
 		this.destinationPath=remotePath;
 		sourcePath = new BucketCoding().bucketFileCoding(file.getLocalPath(), rootArea);
@@ -59,9 +42,7 @@ public abstract class SoftCopy extends Operation {
 		
 	}
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
-//		TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
-//		TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		TransportManager tm=getTransport(myFile);
 		String id=null;
 		try {
@@ -76,7 +57,7 @@ public abstract class SoftCopy extends Operation {
 	
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath, String author, String[] server, String rootArea) {
+	public String initOperation(MyFile resource, String remotePath, String author, String[] server, String rootArea) {
 // For terrastore, the name of bucket is formed: path_____fileName_____author				
 		this.sourcePath=resource.getLocalPath();
 		this.destinationPath=resource.getRemotePath();
@@ -84,23 +65,9 @@ public abstract class SoftCopy extends Operation {
 		destinationPath = new BucketCoding().bucketFileCoding(resource.getRemotePath(), rootArea);
 		setResource(resource);
 		return bucket=destinationPath;
-//		if(remotePath != null){
-//			boolean isId=ObjectId.isValid(remotePath);
-//			setResource(resource);
-//			if(!isId){
-////				String[] dirs= remotePath.split(file_separator);
-//				if(logger.isDebugEnabled())
-//					logger.debug("remotePath: "+remotePath);
-//				String buck=null;
-//				buck = new BucketCoding().bucketFileCoding(remotePath, rootArea);
-//				return bucket=buck;
-//			}else{
-//				return bucket=remotePath;
-//			}
-//		}return bucket=null;//else throw new RemoteBackendException("argument cannot be null");
 	}
 	
-	public abstract String execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException;
+	public abstract String execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException;
 
 	public String getSourcePath() {
 		return sourcePath;
@@ -118,11 +85,11 @@ public abstract class SoftCopy extends Operation {
 		this.destinationPath = destinationPath;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Unlock.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Unlock.java
index 4a9a8e5..3de213e 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Unlock.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Unlock.java
@@ -2,10 +2,9 @@ package org.gcube.contentmanagement.blobstorage.service.operation;
 
 import java.io.OutputStream;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.operation.UploadOperator;
@@ -23,7 +22,7 @@ public abstract class Unlock extends Operation {
 	protected String localPath;
 	protected String remotePath;
 	protected OutputStream os;
-	protected RequestObject resource;
+	protected MyFile resource;
 	protected Upload upload;
 	
 	public Unlock(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
@@ -32,7 +31,7 @@ public abstract class Unlock extends Operation {
 		}
 	
 	@Override
-	public String doIt(RequestObject myFile) throws RemoteBackendException {
+	public String doIt(MyFile myFile) throws RemoteBackendException {
 		if (logger.isDebugEnabled()) {
 			logger.debug(" UPLOAD " + myFile.getLocalPath()
 					+ " author: " + myFile.getOwner());
@@ -43,8 +42,6 @@ public abstract class Unlock extends Operation {
 			//inserire parametro per il lock 
 			objectId=put(upload, myFile, isChunk(), false, false, true);
 		} catch (Exception e) {
-//			TransportManagerFactory tmf=new TransportManagerFactory(server, user, password);
-//			TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
 			TransportManager tm=getTransport(myFile);
 			tm.close();
 			throw new RemoteBackendException(" Error in unlock operation ", e.getCause());
@@ -54,7 +51,7 @@ public abstract class Unlock extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject file, String remotePath,
+	public String initOperation(MyFile file, String remotePath,
 			String author, String[] server, String rootArea,
 			boolean replaceOption) {
 		String bucketName=null;
@@ -71,13 +68,13 @@ public abstract class Unlock extends Operation {
 	}
 
 	@Override
-	public String initOperation(RequestObject resource, String RemotePath,
+	public String initOperation(MyFile resource, String RemotePath,
 			String author, String[] server, String rootArea) {
 		// TODO Auto-generated method stub
 		return null;
 	}
 	
-	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String bucket, String key4unlock) throws Exception;
+	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String bucket, String key4unlock) throws Exception;
 
 	public String getLocalPath() {
 		return localPath;
@@ -103,11 +100,11 @@ public abstract class Unlock extends Operation {
 		this.os = os;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Upload.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Upload.java
index 3bb4d27..a7aa4c6 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Upload.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Upload.java
@@ -4,10 +4,9 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
-import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
@@ -32,7 +31,7 @@ public abstract class Upload extends Operation {
 	protected String localPath;
 	protected String remotePath;
 	protected OutputStream os;
-	protected RequestObject resource;
+	protected MyFile resource;
 
 	public Upload(String[] server, String user, String pwd, String bucket, Monitor monitor, boolean isChunk, String bck, String[] dbs) {
 		super(server, user, pwd, bucket, monitor, isChunk, bck, dbs);
@@ -40,7 +39,7 @@ public abstract class Upload extends Operation {
 
 	
 	
-	public String doIt(RequestObject myFile) throws RemoteBackendException{
+	public String doIt(MyFile myFile) throws RemoteBackendException{
 		if (logger.isDebugEnabled()) {
 			logger.debug(" UPLOAD " + myFile.getLocalPath()
 					+ " author: " + myFile.getOwner());
@@ -49,8 +48,6 @@ public abstract class Upload extends Operation {
 		try {
 			objectId=put(this, myFile, isChunk(), false, replaceOption, false);
 		} catch (Throwable e) {
-//			TransportManagerFactory tmf=new TransportManagerFactory(server, user, password);
-//			TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
 			e.printStackTrace();
 			TransportManager tm=getTransport(myFile);
 			tm.close();
@@ -64,7 +61,7 @@ public abstract class Upload extends Operation {
 
 
 	@Override
- public String initOperation(RequestObject file, String remotePath, String author, String[] server, String rootArea, boolean replaceOption) {
+ public String initOperation(MyFile file, String remotePath, String author, String[] server, String rootArea, boolean replaceOption) {
 		// set replace option
 		this.replaceOption=replaceOption;
 		setResource(file);
@@ -81,7 +78,7 @@ public abstract class Upload extends Operation {
 
 
 	@Override
-	public String initOperation(RequestObject resource, String remotePath,
+	public String initOperation(MyFile resource, String remotePath,
 			String author, String[] server, String rootArea) {
 		// the name of bucket is formed: path_____fileName_____author				
 		String bucketName=new BucketCoding().bucketFileCoding(remotePath, rootArea);
@@ -91,7 +88,7 @@ public abstract class Upload extends Operation {
 	}
 
 
-	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String bucket, boolean replace) throws IOException;
+	public abstract String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String bucket, boolean replace) throws IOException;
 
 	public InputStream getIs() {
 		return is;
@@ -153,13 +150,13 @@ public abstract class Upload extends Operation {
 
 
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
 
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 	
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/UploadAndUnlock.java b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/UploadAndUnlock.java
new file mode 100644
index 0000000..4132f88
--- /dev/null
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/UploadAndUnlock.java
@@ -0,0 +1,63 @@
+package org.gcube.contentmanagement.blobstorage.service.operation;
+
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
+import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
+import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
+import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
+import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
+import org.gcube.contentmanagement.blobstorage.transport.backend.operation.UploadOperator;
+/**
+ * @deprecated
+ * @author Roberto Cirillo (ISTI - CNR)
+ *
+ */
+public class UploadAndUnlock extends Operation {
+
+//	private String keyUnlock;
+	
+	public UploadAndUnlock(String[] server, String user, String pwd,  String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
+		// TODO Auto-generated constructor stub
+			super(server,user, pwd, bucket, monitor, isChunk, backendType, dbs);
+		}
+	
+	@Override
+	public String doIt(MyFile myFile) throws RemoteBackendException {
+		if (logger.isDebugEnabled()) {
+			logger.debug(" UPLOAD " + myFile.getLocalPath()
+					+ " author: " + myFile.getOwner());
+		}
+		Upload upload= new UploadOperator(getServer(), getUser(), getPassword(), getBucket(), getMonitor(), isChunk(), getBackendType(), getDbNames());
+		String objectId=null;
+		try {
+			//inserire parametro per il lock 
+			objectId=put(upload, myFile, isChunk(), false, false, true);
+		} catch (Exception e) {
+			TransportManagerFactory tmf=new TransportManagerFactory(server, user, password);
+			TransportManager tm=tmf.getTransport(transport, backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
+			tm.close();
+			throw new RemoteBackendException(" Error in uploadAndUnlock operation ", e);		
+		}
+		return objectId;
+
+	}
+
+	@Override
+	public String initOperation(MyFile file, String remotePath,
+			String author, String[] server, String rootArea,
+			boolean replaceOption) {
+		// set replace option
+//		this.replaceOption=replaceOption;
+		// the name of bucket is formed: path_____fileName_____author				
+		String bucketName=new BucketCoding().bucketFileCoding(remotePath, rootArea);
+		return bucket=bucketName;
+
+	}
+
+	@Override
+	public String initOperation(MyFile resource, String RemotePath,
+			String author, String[] server, String rootArea) {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/test/SimpleTest2.java b/src/main/java/org/gcube/contentmanagement/blobstorage/test/SimpleTest2.java
deleted file mode 100644
index f085464..0000000
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/test/SimpleTest2.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package org.gcube.contentmanagement.blobstorage.test;
-
-import java.util.List;
-import org.gcube.contentmanagement.blobstorage.service.IClient;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
-import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
-import org.gcube.contentmanagement.blobstorage.resource.StorageObject;
-
-
-
-public class SimpleTest2 {
-	
-	public static void main(String[] args) throws RemoteBackendException{		
-		String[] server=new String[]{"146.48.123.73","146.48.123.74" };
-
-		IClient client=new ServiceEngine(server, "rcirillo", "cnr", "private", "rcirillo");		
-//		String localFile="/home/rcirillo/FilePerTest/CostaRica.jpg";
-		String remoteFile="/img/shared9.jpg";
-		String newFile="/home/rcirillo/FilePerTest/repl4.jpg";
-		client.get().LFile(newFile).RFile(remoteFile);
-		List<StorageObject> list=client.showDir().RDir("/img/");
-		for(StorageObject obj : list){
-			System.out.println("obj found: "+obj.getName());
-		}
-		String uri=client.getUrl().RFile(remoteFile);
-		System.out.println(" uri file: "+uri);
-	}
-}
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java
index 96d2263..0385bec 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java
@@ -7,7 +7,7 @@ import java.util.List;
 import java.util.Map;
 
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.StorageObject;
 import org.gcube.contentmanagement.blobstorage.service.operation.*;
 import org.gcube.contentmanagement.blobstorage.transport.backend.operation.LockOperator;
@@ -49,7 +49,7 @@ public abstract class TransportManager {
 	 * @return the key of remote resource
 	 * @throws IOException if there are IO problems
 	 */
-	public String downloadManager(Download download, RequestObject myFile, String key, Class <? extends Object> type) throws Exception{
+	public String downloadManager(Download download, MyFile myFile, String key, Class <? extends Object> type) throws Exception{
 		String key4lock=null;
 		if(myFile.isLock()){
 			download.setResource(myFile);
@@ -76,7 +76,7 @@ public abstract class TransportManager {
 	 */
 	public String uploadManager(Upload upload, Object resource, String bucket, String key, boolean replace)  throws Exception{
 		String id=null;
-		RequestObject file=(RequestObject)resource;
+		MyFile file=(MyFile)resource;
 		if((file.getLockedKey()!=null) && (!file.getLockedKey().isEmpty())){
 			Unlock unlock= new UnlockOperator(upload.getServer(), upload.getUser(), upload.getPassword(), upload.getBucket(), upload.getMonitor(), upload.isChunk(), upload.getBackendType(), upload.getDbNames());
 			unlock.setResource(file);
@@ -133,14 +133,14 @@ public abstract class TransportManager {
 	 * @return map that contains the object in the direcotry
 	 * @throws UnknownHostException 
 	 */
-	public abstract Map<String, StorageObject> getValues(RequestObject resource, String bucket, Class< ? extends Object> type);
+	public abstract Map<String, StorageObject> getValues(MyFile resource, String bucket, Class< ? extends Object> type);
 	
 	/**
 	 * delete a remote file
 	 * @param bucket identifies the remote file 
 	 * @throws UnknownHostException 
 	 */
-	public abstract void removeRemoteFile(String bucket, RequestObject resource) throws UnknownHostException;
+	public abstract void removeRemoteFile(String bucket, MyFile resource) throws UnknownHostException;
 	
 	/**
 	 * delete a remote directory
@@ -150,7 +150,7 @@ public abstract class TransportManager {
 	 * @throws UnknownHostException 
 	 * 
 	 */
-	public abstract void removeDir(String remoteDir, RequestObject myFile) throws UnknownHostException;
+	public abstract void removeDir(String remoteDir, MyFile myFile) throws UnknownHostException;
 	
 
 	/**
@@ -160,7 +160,7 @@ public abstract class TransportManager {
 	 * @return the size of the remote file
 	 * @throws UnknownHostException
 	 */
-	public abstract long getSize(String bucket, RequestObject myFile); 
+	public abstract long getSize(String bucket, MyFile myFile); 
 
 	/**
 	 * lock a remote file
@@ -210,7 +210,7 @@ public abstract class TransportManager {
 	 * @throws UnknownHostException
 	 * @throws IllegalAccessException
 	 */
-	public abstract long renewTTL(RequestObject resource) throws UnknownHostException, IllegalAccessException;
+	public abstract long renewTTL(MyFile resource) throws UnknownHostException, IllegalAccessException;
 	
 	
 	/**
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoIOManager.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoIOManager.java
index 86a8f32..944bdc8 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoIOManager.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoIOManager.java
@@ -12,12 +12,10 @@ import java.util.List;
 import java.util.Set;
 import org.bson.types.ObjectId;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
-import org.gcube.contentmanagement.blobstorage.service.operation.Operation;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.DateUtils;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.MongoInputStream;
@@ -119,13 +117,13 @@ public class MongoIOManager {
 				logger.error("Problem to open the DB connection for gridfs file ");
 				throw new RemoteBackendException("Problem to open the DB connection: "+ e.getMessage());
 			}
-			logger.info("new mongo connection pool opened");
+			logger.info("mongo connection ready");
 			
 		}
 		return db;
 	}
 //PATCHED METHODS
-	protected ObjectId getRemoteObject(GridFS gfs, RequestObject resource, GridFSDBFile f) throws IOException, IllegalAccessError {
+	protected ObjectId getRemoteObject(GridFS gfs, MyFile resource, GridFSDBFile f) throws IOException, IllegalAccessError {
 		ObjectId id;
 		id=(ObjectId)f.getId();
 		String lock=(String)f.get("lock");
@@ -141,7 +139,7 @@ public class MongoIOManager {
 		return id;
 	}
 	
-	public ObjectId getRemoteObject(RequestObject resource, GridFSDBFile f) throws IOException, IllegalAccessError {
+	public ObjectId getRemoteObject(MyFile resource, GridFSDBFile f) throws IOException, IllegalAccessError {
 		ObjectId id;
 		id=(ObjectId)f.getId();
 		String lock=(String)f.get("lock");
@@ -187,7 +185,7 @@ public class MongoIOManager {
 	 * @param isLock indicates if the file must be locked
 	 * @throws IOException 
 	 */
-	private void download(GridFS gfs, RequestObject resource, GridFSDBFile f, boolean isLock) throws IOException {
+	private void download(GridFS gfs, MyFile resource, GridFSDBFile f, boolean isLock) throws IOException {
 		OperationDefinition op=resource.getOperationDefinition();
 		logger.info("MongoClient download method: "+op.toString());
 // if contains the field link it means that is a link hence I follow ne or more links		
@@ -218,7 +216,7 @@ public class MongoIOManager {
 	 * @param isLock indicates if the file must be locked
 	 * @throws IOException 
 	 */
-	private void download( RequestObject resource, GridFSDBFile f, boolean isLock) throws IOException {
+	private void download( MyFile resource, GridFSDBFile f, boolean isLock) throws IOException {
 		OperationDefinition op=resource.getOperationDefinition();
 		logger.info("MongoClient download method: "+op.toString());
 // if contains the field link it means that is a link hence I follow ne or more links		
@@ -242,7 +240,7 @@ public class MongoIOManager {
 		}
 	}
 
-	public void updateCommonFields(DBObject f, RequestObject resource, OPERATION op) {
+	public void updateCommonFields(DBObject f, MyFile resource, OPERATION op) {
 		f.put("lastAccess", DateUtils.now("dd MM yyyy 'at' hh:mm:ss z"));
 		String owner=resource.getOwner();
 		f.put("lastUser", owner);
@@ -289,7 +287,7 @@ public class MongoIOManager {
 			         			  close();
 				         			  throw new IllegalAccessError("The file is locked");
 			         		  }else{
-			         			 oldId=checkAndRemove(fold, (RequestObject)resource);
+			         			 oldId=checkAndRemove(fold, (MyFile)resource);
 			         		  }
 			         	  }
 //			        }else if(oldir == null){
@@ -301,7 +299,7 @@ public class MongoIOManager {
 	}
 	
 	
-	public ObjectId checkAndRemove(GridFSDBFile f, RequestObject resource){
+	public ObjectId checkAndRemove(GridFSDBFile f, MyFile resource){
 		String idToRemove=f.getId().toString();
 		logger.info("check and remove object with id "+idToRemove+" and path: "+f.get("filename"));
 		ObjectId idFile=null;
@@ -310,6 +308,7 @@ public class MongoIOManager {
 		updateCommonFields(f, resource, OPERATION.REMOVE);
 // check if the file is linked		
 		if((f!=null) && (f.containsField(Costants.COUNT_IDENTIFIER)) && (f.get(Costants.COUNT_IDENTIFIER) != null)){
+			logger.debug("RemovingObject: the following object "+idToRemove+" contains a COUNT field");
 		// this field is only added for reporting tool: storage-manager-trigger	
 			String filename=(String)f.get("filename");
 			f.put("onScope", filename);
@@ -322,6 +321,7 @@ public class MongoIOManager {
 	// check if the file is a link 
 		}else if((f.containsField(Costants.LINK_IDENTIFIER)) && (f.get(Costants.LINK_IDENTIFIER) != null )){
 			while((f!=null) && (f.containsField(Costants.LINK_IDENTIFIER)) && (f.get(Costants.LINK_IDENTIFIER) != null )){
+				logger.debug("RemovingObject: the following object "+idToRemove+" contains a LINK field");
 				// remove f and decrement linkCount field on linked object
 				String id=(String)f.get(Costants.LINK_IDENTIFIER);
 				GridFSDBFile fLink=findGFSCollectionObject(new ObjectId(id));
@@ -408,12 +408,12 @@ public class MongoIOManager {
 	//maybe this close is not needed	
 //		clean();
 		try{
-			if(((RequestObject)resource).getInputStream()!= null){
+			if(((MyFile)resource).getInputStream()!= null){
 			//upload with client inputStream	
 				f2 = writeByInputStream(resource, bucket, name, dir,idFile);
 				f2.save();
 				
-			}else if(((((RequestObject)resource).getType() != null) && (((RequestObject)resource).getType().equals("output")))){
+			}else if(((((MyFile)resource).getType() != null) && (((MyFile)resource).getType().equals("output")))){
 	// upload with outputstream		
 				f2 = writeByOutputStream(resource, bucket, name, dir, idFile);
 			}else{
@@ -429,7 +429,7 @@ public class MongoIOManager {
 				logger.debug("ObjectId: "+id);
 			
 		// if it is an outputstream	don't close	
-			if(!((((RequestObject)resource).getType() != null) && (((RequestObject)resource).getType().equals("output")))){
+			if(!((((MyFile)resource).getType() != null) && (((MyFile)resource).getType().equals("output")))){
 				close();
 			}
 		}catch(IOException e1){
@@ -454,9 +454,9 @@ public class MongoIOManager {
 			throws IOException {
 		GridFSInputFile f2;
 		if(!(memoryType== MemoryType.VOLATILE))
-			f2 = createGFSFileObject(new File(((RequestObject)resource).getLocalPath()), ((RequestObject)resource).getWriteConcern(), ((RequestObject)resource).getReadPreference());
+			f2 = createGFSFileObject(new File(((MyFile)resource).getLocalPath()), ((MyFile)resource).getWriteConcern(), ((MyFile)resource).getReadPreference());
 		else
-			f2 = createGFSFileObject(new File(((RequestObject)resource).getLocalPath()));
+			f2 = createGFSFileObject(new File(((MyFile)resource).getLocalPath()));
 		fillInputFile(resource, bucket, name, dir, f2, idFile);
 		saveGFSFileObject(f2);
 		return f2;
@@ -466,11 +466,11 @@ public class MongoIOManager {
 			String bucket, String name, String dir, ObjectId idFile) throws IOException {
 		GridFSInputFile f2;
 		if(!(memoryType== MemoryType.VOLATILE))
-			f2 = createGFSFileObject(((RequestObject)resource).getName(), ((RequestObject)resource).getWriteConcern(), ((RequestObject)resource).getReadPreference());
+			f2 = createGFSFileObject(((MyFile)resource).getName(), ((MyFile)resource).getWriteConcern(), ((MyFile)resource).getReadPreference());
 		else
-			f2 = createGFSFileObject(((RequestObject)resource).getName());
+			f2 = createGFSFileObject(((MyFile)resource).getName());
 		fillInputFile(resource, bucket, name, dir, f2, idFile);
-		((RequestObject)resource).setOutputStream(new MongoOutputStream(mongo, f2.getOutputStream()));
+		((MyFile)resource).setOutputStream(new MongoOutputStream(mongo, f2.getOutputStream()));
 		return f2;
 	}
 
@@ -479,13 +479,13 @@ public class MongoIOManager {
 			throws IOException {
 		GridFSInputFile f2;
 		if(!(memoryType== MemoryType.VOLATILE))
-			f2 = createGFSFileObject(((RequestObject)resource).getInputStream(), ((RequestObject)resource).getWriteConcern(),((RequestObject)resource).getReadPreference());
+			f2 = createGFSFileObject(((MyFile)resource).getInputStream(), ((MyFile)resource).getWriteConcern(),((MyFile)resource).getReadPreference());
 		else
-			f2 = createGFSFileObject(((RequestObject)resource).getInputStream());
+			f2 = createGFSFileObject(((MyFile)resource).getInputStream());
 		fillInputFile(resource, bucket, name, dir, f2, idFile);
 		saveGFSFileObject(f2);
-		((RequestObject)resource).getInputStream().close();
-		((RequestObject)resource).setInputStream(null);
+		((MyFile)resource).getInputStream().close();
+		((MyFile)resource).setInputStream(null);
 		return f2;
 	}
 
@@ -503,14 +503,14 @@ public class MongoIOManager {
 			f2.put("name", name);
 		if(dir!=null)
 			f2.put("dir", dir);
-		if(((RequestObject)resource).getOwner() !=null)
-			f2.put("owner", ((RequestObject)resource).getOwner());
-		String mime= ((RequestObject)resource).getMimeType();
+		if(((MyFile)resource).getOwner() !=null)
+			f2.put("owner", ((MyFile)resource).getOwner());
+		String mime= ((MyFile)resource).getMimeType();
 		if( mime !=null){
 			f2.put("mimetype", mime);
 		}
 		f2.put("creationTime", DateUtils.now("dd MM yyyy 'at' hh:mm:ss z"));
-		updateCommonFields(f2, (RequestObject)resource, null);
+		updateCommonFields(f2, (MyFile)resource, null);
 	}
 
 	
@@ -521,7 +521,7 @@ public class MongoIOManager {
 	 * @param query
 	 * @throws UnknownHostException 
 	 */
-	protected void removeObject(GridFS gfs, BasicDBObject query, RequestObject resource){
+	protected void removeObject(GridFS gfs, BasicDBObject query, MyFile resource){
 		List<GridFSDBFile> list = gfs.find(query);
 		for(Iterator<GridFSDBFile> it=list.iterator(); it.hasNext();){
 			GridFSDBFile f=(GridFSDBFile)it.next();
@@ -535,19 +535,19 @@ public class MongoIOManager {
 	}
 
 
-	public void setGenericProperties(RequestObject resource, String destination,
+	public void setGenericProperties(MyFile resource, String destination,
 			String dir, GridFSInputFile destinationFile, String name) {
 		updateCommonFields(destinationFile, resource, null);
 		destinationFile.put("filename", destination);  
 		destinationFile.put("type", "file");
 		destinationFile.put("name", name);
 		destinationFile.put("dir", dir);
-		destinationFile.put("owner", ((RequestObject)resource).getOwner());
-		destinationFile.put("mimetype", ((RequestObject)resource).getMimeType());
+		destinationFile.put("owner", ((MyFile)resource).getOwner());
+		destinationFile.put("mimetype", ((MyFile)resource).getMimeType());
 		destinationFile.put("creationTime", DateUtils.now("dd MM yyyy 'at' hh:mm:ss z"));
 	}
 
-	public DBObject setGenericMoveProperties(RequestObject resource, String filename, String dir,
+	public DBObject setGenericMoveProperties(MyFile resource, String filename, String dir,
 			String name, DBObject sourcePathMetaCollection) {
 		sourcePathMetaCollection.put("filename", filename);
 		sourcePathMetaCollection.put("type", "file");
@@ -669,6 +669,10 @@ public class MongoIOManager {
 							f=null;
 						}
 					}
+					if (f==null) {
+						logger.warn("The objectID is not present. Going to abort the current operation");
+						throw new RemoteBackendException("Object id "+serverLocation+" not found.");
+					}
 		// if the remote identifier is not a specified as ID, try to check if it is a valid remote path 
 		// in this case the remote identifier is a valid objectID but it indicates a path
 				}else if ((remoteResourceIdentifier != null) && (!(remoteResourceIdentifier.equals(REMOTE_RESOURCE.ID))) && (f==null)){
@@ -835,7 +839,7 @@ public class MongoIOManager {
 	 * @param isLock 
 	 * @return
 	 */
-	protected String readByInputStream(RequestObject resource, GridFSDBFile f, boolean isLock, int count) {
+	protected String readByInputStream(MyFile resource, GridFSDBFile f, boolean isLock, int count) {
 		String key=null;
 		resource.setInputStream(new MongoInputStream(mongo, f.getInputStream()));
 		return key;
@@ -848,7 +852,7 @@ public class MongoIOManager {
 	 * @return
 	 * @throws IOException
 	 */
-	protected String readByOutputStream(RequestObject resource, GridFSDBFile f, boolean isLock, int count)
+	protected String readByOutputStream(MyFile resource, GridFSDBFile f, boolean isLock, int count)
 			throws IOException {
 		String key=null;
 		f.writeTo(resource.getOutputStream());
@@ -866,7 +870,7 @@ public class MongoIOManager {
 	 * @return
 	 * @throws IOException
 	 */
-	protected String readByPath(RequestObject resource, GridFSDBFile f, boolean isLock, int count)
+	protected String readByPath(MyFile resource, GridFSDBFile f, boolean isLock, int count)
 			throws IOException {
 		String key=null;
 		try{
@@ -1067,11 +1071,11 @@ public class MongoIOManager {
 	public void close() {
 //		if(mongo!=null)
 //			mongo.close();
-		logger.debug(" try to close backend but the close operation is not implemented");
+		logger.debug(" cleaning mongo objects");
 //		logger.info("Mongo has been closed");
 //		mongo=null;
-//		gfs=null;
-//		db=null;
+		gfs=null;
+		db=null;
 	}
 	
 	
@@ -1079,6 +1083,8 @@ public class MongoIOManager {
 		if(mongo!=null)
 			mongo.close();
 		logger.info("Mongo pool closed");
+		close();
+		mongo=null;
 	}
 	
 	public void removeGFSFile(GridFSDBFile f, ObjectId idF){
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoOperationManager.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoOperationManager.java
index c7c6f22..30504c1 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoOperationManager.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/MongoOperationManager.java
@@ -11,11 +11,11 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
 import org.gcube.contentmanagement.blobstorage.service.operation.*;
 import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
@@ -134,8 +134,10 @@ public class MongoOperationManager extends TransportManager{
 	}
 	
 	public void forceClose() {
-		mongoPrimaryInstance.forceClose();
-		mongoSecondaryInstance.forceClose();
+		if(Objects.nonNull(mongoPrimaryInstance))
+			mongoPrimaryInstance.forceClose();
+		if(Objects.nonNull(mongoSecondaryInstance))
+			mongoSecondaryInstance.forceClose();
 	}
 	
 	/**
@@ -149,7 +151,7 @@ public class MongoOperationManager extends TransportManager{
 	}
 	
 	@Override
-	public Map<String, StorageObject> getValues(RequestObject resource, String bucket, Class<? extends Object> type){
+	public Map<String, StorageObject> getValues(MyFile resource, String bucket, Class<? extends Object> type){
 		Map<String, StorageObject> map=null;
 		try{
 			OperationDefinition op=resource.getOperationDefinition();
@@ -222,7 +224,7 @@ public class MongoOperationManager extends TransportManager{
 
 
 	@Override
-	public void removeRemoteFile(String bucket, RequestObject resource) throws UnknownHostException{
+	public void removeRemoteFile(String bucket, MyFile resource) throws UnknownHostException{
 		logger.info("Check file: "+bucket+ " for removing operation");
 		GridFSDBFile f=mongoPrimaryInstance.retrieveRemoteDescriptor(bucket, null, true);
 		if(f!=null){
@@ -245,7 +247,7 @@ public class MongoOperationManager extends TransportManager{
 
 
 	@Override
-	public void removeDir(String remoteDir, RequestObject resource){
+	public void removeDir(String remoteDir, MyFile resource){
 		ArrayList<String> dirs=new ArrayList<String>();
 		dirs.add(remoteDir);
 	// patch for incompatibility v 1-2	
@@ -298,7 +300,7 @@ public class MongoOperationManager extends TransportManager{
 	}
 
 	@Override
-	public long getSize(String remotePath, RequestObject file){
+	public long getSize(String remotePath, MyFile file){
 		long length=-1;
 		if(logger.isDebugEnabled())
 			logger.debug("MongoDB - get Size for pathServer: "+remotePath);
@@ -344,9 +346,9 @@ public class MongoOperationManager extends TransportManager{
 	}
 
 	@Override
-	public long renewTTL(RequestObject resource) throws UnknownHostException, IllegalAccessException{
+	public long renewTTL(MyFile resource) throws UnknownHostException, IllegalAccessException{
 		long ttl=-1;
-		RequestObject file=(RequestObject)resource;
+		MyFile file=(MyFile)resource;
 		REMOTE_RESOURCE remoteResourceIdentifier=file.getOperation().getRemoteResource();
 		String key=file.getLockedKey();
 		String remotePath=file.getRemotePath();
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyDirOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyDirOperator.java
index 3bf7279..15fa62b 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyDirOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyDirOperator.java
@@ -8,9 +8,8 @@ import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
 import org.gcube.contentmanagement.blobstorage.service.operation.CopyDir;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoOperationManager;
@@ -52,7 +51,7 @@ public class CopyDirOperator extends CopyDir {
 	 * @see org.gcube.contentmanagement.blobstorage.service.operation.CopyDir#execute(org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.resource.MyFile, java.lang.String, java.lang.String)
 	 */
 	@Override
-	public List<String> execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath)
+	public List<String> execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath)
 			throws UnknownHostException {
 		String source=sourcePath;
 		source = appendFileSeparator(source);
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyOperator.java
index 6d9ed03..69b5d3f 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/CopyOperator.java
@@ -7,7 +7,7 @@ import java.io.InputStream;
 import java.net.UnknownHostException;
 
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.service.operation.Copy;
@@ -47,13 +47,13 @@ public class CopyOperator extends Copy {
 	 */
 	@Override
 //	public String execute(MongoIO mongoPrimaryInstance) throws UnknownHostException {
-	public String execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException {
+	public String execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException {
 		String source=sourcePath;
 		String destination=destinationPath;
-		String dir=((RequestObject)resource).getRemoteDir();
-		String originalDir=((RequestObject)resource).getLocalDir();
+		String dir=((MyFile)resource).getRemoteDir();
+		String originalDir=((MyFile)resource).getLocalDir();
 		logger.debug("from directory: "+originalDir+ "to directory: "+dir);
-		String name=((RequestObject)resource).getName();
+		String name=((MyFile)resource).getName();
 		REMOTE_RESOURCE remoteResourceIdentifier=resource.getOperation().getRemoteResource();
 		ObjectId destinationId=null;
 		logger.debug("copy operation on Mongo backend, parameters: source path: "+source+" destination path: "+destination);
@@ -96,11 +96,11 @@ public class CopyOperator extends Copy {
 
 	
 	public String safePut(MongoIOManager mongoPrimaryInstance, Object resource, String bucket, String key, boolean replace) throws UnknownHostException{
-		OperationDefinition op=((RequestObject)resource).getOperationDefinition();
-		REMOTE_RESOURCE remoteResourceIdentifier=((RequestObject)resource).getOperation().getRemoteResource();
+		OperationDefinition op=((MyFile)resource).getOperationDefinition();
+		REMOTE_RESOURCE remoteResourceIdentifier=((MyFile)resource).getOperation().getRemoteResource();
 		logger.info("MongoClient put method: "+op.toString());
-		String dir=((RequestObject)resource).getRemoteDir();
-		String name=((RequestObject)resource).getName();		
+		String dir=((MyFile)resource).getRemoteDir();
+		String name=((MyFile)resource).getName();		
 		ObjectId id=null;
 		ObjectId oldId=null;
 // id of the remote file if present		
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/DuplicateOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/DuplicateOperator.java
index af717a2..463a5fb 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/DuplicateOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/DuplicateOperator.java
@@ -5,7 +5,7 @@ package org.gcube.contentmanagement.blobstorage.transport.backend.operation;
 
 import java.io.IOException;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.service.operation.DuplicateFile;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
@@ -46,8 +46,8 @@ public class DuplicateOperator extends DuplicateFile {
 	 */
 	@Override
 	public String execute(MongoIOManager mongoPrimaryInstance){
-		String destination=((RequestObject)getResource()).getRemotePath()+Costants.DUPLICATE_SUFFIX;
-		String dir=((RequestObject)getResource()).getRemoteDir();
+		String destination=((MyFile)getResource()).getRemotePath()+Costants.DUPLICATE_SUFFIX;
+		String dir=((MyFile)getResource()).getRemoteDir();
 //		String name=((MyFile)getResource()).getName();
 		if((getBucket() != null) && (!getBucket().isEmpty())){
 			REMOTE_RESOURCE remoteResourceIdentifier=resource.getOperation().getRemoteResource();
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LinkOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LinkOperator.java
index 4639fd9..06e5cb0 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LinkOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LinkOperator.java
@@ -7,12 +7,11 @@ import java.net.UnknownHostException;
 
 import org.bson.types.ObjectId;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.service.operation.Link;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
-import org.gcube.contentmanagement.blobstorage.service.operation.Operation;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
 import org.slf4j.Logger;
@@ -49,7 +48,7 @@ public class LinkOperator extends Link {
 	 * @see org.gcube.contentmanagement.blobstorage.service.operation.Link#execute(org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.resource.MyFile, java.lang.String)
 	 */
 	@Override
-	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException {
+	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException {
 		boolean replace=true;
 		String source=sourcePath;
 		String destination=destinationPath;
@@ -82,7 +81,7 @@ public class LinkOperator extends Link {
 				String oldir=(String)fold.get("dir");
 		        if(logger.isDebugEnabled())
 		      	  logger.debug("old dir  found "+oldir);
-		        if((oldir.equalsIgnoreCase(((RequestObject)resource).getRemoteDir()))){
+		        if((oldir.equalsIgnoreCase(((MyFile)resource).getRemoteDir()))){
 		         	  ObjectId oldId=(ObjectId) fold.getId();
 		         	  if(!replace){
 		         		  return oldId.toString();
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LockOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LockOperator.java
index d31310a..7a5d82d 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LockOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/LockOperator.java
@@ -4,11 +4,10 @@
 package org.gcube.contentmanagement.blobstorage.transport.backend.operation;
 
 import java.io.FileNotFoundException;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
-import org.gcube.contentmanagement.blobstorage.service.operation.Download;
 import org.gcube.contentmanagement.blobstorage.service.operation.Lock;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
@@ -46,7 +45,7 @@ public class LockOperator extends Lock {
 	 * @see org.gcube.contentmanagement.blobstorage.service.operation.Lock#execute(org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO)
 	 */
 	@Override
-	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String serverLocation) throws  Exception {
+	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String serverLocation) throws  Exception {
 		OperationDefinition op=resource.getOperationDefinition();
 		REMOTE_RESOURCE remoteResourceIdentifier=resource.getOperation().getRemoteResource();
 //		if((resource.getLocalPath()!= null) && (!resource.getLocalPath().isEmpty())){
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveDirOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveDirOperator.java
index b16f715..ddb78ff 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveDirOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveDirOperator.java
@@ -9,9 +9,8 @@ import java.util.List;
 
 import org.bson.types.ObjectId;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
 import org.gcube.contentmanagement.blobstorage.service.operation.MoveDir;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoOperationManager;
@@ -53,7 +52,7 @@ public class MoveDirOperator extends MoveDir {
 	 * @see org.gcube.contentmanagement.blobstorage.service.operation.MoveDir#execute(org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.resource.MyFile, java.lang.String, java.lang.String)
 	 */
 	@Override
-	public List<String> execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath,
+	public List<String> execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath,
 			String destinationPath, MemoryType memoryType) throws UnknownHostException {
 		String source=sourcePath;
 		source = appendFileSeparator(source);
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveOperator.java
index 22f908f..7469146 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/MoveOperator.java
@@ -7,9 +7,8 @@ import java.net.InetAddress;
 import java.net.UnknownHostException;
 
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
-import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
 import org.gcube.contentmanagement.blobstorage.service.operation.Move;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoOperationManager;
@@ -54,12 +53,12 @@ public class MoveOperator extends Move {
 	 */
 	@Override
 //	public String execute(MongoIO mongoPrimaryInstance, MemoryType memoryType) throws UnknownHostException {
-	public String execute(MongoIOManager mongoPrimaryInstance,  MemoryType memoryType, RequestObject resource, String sourcePath, String destinationPath) throws UnknownHostException {
+	public String execute(MongoIOManager mongoPrimaryInstance,  MemoryType memoryType, MyFile resource, String sourcePath, String destinationPath) throws UnknownHostException {
 		String source=sourcePath;
 		String destination=destinationPath;
 		resource.setLocalPath(sourcePath);
-		String dir=((RequestObject)resource).getRemoteDir();
-		String name=((RequestObject)resource).getName();
+		String dir=((MyFile)resource).getRemoteDir();
+		String name=((MyFile)resource).getName();
 		String destinationId=null;
 		String sourceId=null;
 		logger.info("move operation on Mongo backend, parameters: source path: "+source+" destination path: "+destination);
@@ -112,7 +111,7 @@ public class MoveOperator extends Move {
 		// update fields	
 					mongoPrimaryInstance.buildDirTree(mongoPrimaryInstance.getMetaDataCollection(mongoPrimaryInstance.getConnectionDB( MongoOperationManager.getPrimaryCollectionName(), true)), dir);
 					sourcePathMetaCollection= new BasicDBObject();
-					sourcePathMetaCollection.put("$set", new BasicDBObject().append("dir", dir).append("filename", destinationPath).append("name", name).append("owner", ((RequestObject)resource).getOwner()));
+					sourcePathMetaCollection.put("$set", new BasicDBObject().append("dir", dir).append("filename", destinationPath).append("name", name).append("owner", ((MyFile)resource).getOwner()));
 					logger.info("new object merged ");
 					mongoPrimaryInstance.printObject(sourcePathMetaCollection);
 			//applies the update	
@@ -175,7 +174,7 @@ public class MoveOperator extends Move {
 
 	}
 	
-	private DBObject setCommonFields(DBObject sourcePathMetaCollection, RequestObject resource, OPERATION op) {
+	private DBObject setCommonFields(DBObject sourcePathMetaCollection, MyFile resource, OPERATION op) {
 		String owner=resource.getOwner();
 		if(op == null){
 			op=resource.getOperationDefinition().getOperation();
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/SoftCopyOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/SoftCopyOperator.java
index 222f21b..888de1b 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/SoftCopyOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/SoftCopyOperator.java
@@ -5,15 +5,15 @@ package org.gcube.contentmanagement.blobstorage.transport.backend.operation;
 
 import java.io.InputStream;
 import java.net.UnknownHostException;
+import java.util.Objects;
 
 import org.bson.types.ObjectId;
 import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.LOCAL_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
-import org.gcube.contentmanagement.blobstorage.service.operation.Operation;
 import org.gcube.contentmanagement.blobstorage.service.operation.SoftCopy;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoOperationManager;
@@ -26,6 +26,7 @@ import org.slf4j.LoggerFactory;
 import com.mongodb.BasicDBObject;
 import com.mongodb.DBCollection;
 import com.mongodb.DBObject;
+import com.mongodb.DuplicateKeyException;
 import com.mongodb.gridfs.GridFSDBFile;
 
 /**
@@ -37,7 +38,7 @@ public class SoftCopyOperator extends SoftCopy {
 	Logger logger=LoggerFactory.getLogger(SoftCopyOperator.class);
 	private MemoryType memoryType;
 	private MongoIOManager mongoPrimaryInstance;
-	private RequestObject resource;
+	private MyFile resource;
 	/**
 	 * @param server
 	 * @param user
@@ -55,7 +56,7 @@ public class SoftCopyOperator extends SoftCopy {
 	}
 
 	@Override
-	public String execute(MongoIOManager mongoPrimaryInstance, RequestObject resource, String sourcePath, String destinationPath)
+	public String execute(MongoIOManager mongoPrimaryInstance, MyFile resource, String sourcePath, String destinationPath)
 			throws UnknownHostException {
 		REMOTE_RESOURCE remoteResourceIdentifier=resource.getOperation().getRemoteResource();
 		LOCAL_RESOURCE localResourceIdentifier=resource.getOperation().getLocalResource();
@@ -70,9 +71,9 @@ public class SoftCopyOperator extends SoftCopy {
 		else
 			destination=destinationPath;
 		if(resource!=null){
-			String dir=((RequestObject)resource).getRemoteDir();
-			String name=((RequestObject)resource).getName();
-			setMemoryType(((RequestObject)resource).getGcubeMemoryType());
+			String dir=((MyFile)resource).getRemoteDir();
+			String name=((MyFile)resource).getName();
+			setMemoryType(((MyFile)resource).getGcubeMemoryType());
 		}
 		setMongoPrimaryInstance(mongoPrimaryInstance);
 		ObjectId mapId=null;
@@ -85,6 +86,7 @@ public class SoftCopyOperator extends SoftCopy {
 	// if it contains a link field, then I'm going to retrieve the related payload 
 				sourceObject = mongoPrimaryInstance.retrieveLinkPayload(sourceObject);
 				ObjectId sourceId=(ObjectId)sourceObject.getId();
+				logger.debug("source id is "+sourceId);
 				InputStream is= sourceObject.getInputStream();
 				resource.setInputStream(is);
 				GridFSDBFile dest = null;
@@ -103,11 +105,18 @@ public class SoftCopyOperator extends SoftCopy {
 				ObjectId removedId=null;
 	// if the destination location is not empty			
 				if (dest != null){
+					String destId=dest.getId().toString();
+					logger.debug("destination id is "+destId);
+			// in this case the source and dest are the same object		
+					if(sourceId.toString().equals(destId)) {
+						logger.info("source and destination are pointing to the same object. The copy operation will have no effects");
+						return destId;
+					}
 	// remove the destination file. The third parameter to true replace the file otherwise the remote id is returned
 					if(resource.isReplace()){
 						removedId = mongoPrimaryInstance.removeFile(resource, null, resource.isReplace(), null, dest);
 					}else{
-						return dest.getId().toString();
+						return destId;
 					}
 				}
 			//  get metacollection instance 	
@@ -117,7 +126,7 @@ public class SoftCopyOperator extends SoftCopy {
 				ObjectId md5Id=getDuplicatesMap(md5);
 			// check if the source object is already a map	
 				if(isMap(sourceObject)){
-					logger.debug("the sourceObject with the following id: "+mapId+" is already a map");
+					logger.debug("the sourceObject with the following id: "+sourceId+" is already a map");
 					mapId=sourceId;
 			// then it's needed to add only the destObject to the map	
 			//first: create link object to destination place		
@@ -153,7 +162,7 @@ public class SoftCopyOperator extends SoftCopy {
 		return destObject.getId().toString();
 	}
 
-	private String fillGenericDestinationFields(RequestObject resource, ObjectId souceId) {
+	private String fillGenericDestinationFields(MyFile resource, ObjectId souceId) {
 		String destination;				
 		destination=resource.getRootPath()+souceId;
 		resource.setName(souceId.toString());
@@ -173,17 +182,17 @@ public class SoftCopyOperator extends SoftCopy {
 	 */
 	private ObjectId createNewDuplicatesMap(DBCollection metaCollectionInstance, Object resource, GridFSDBFile sourceObject,  String bucket, ObjectId sourceId) throws UnknownHostException {
 			ObjectId id = null;
-			String dir= ((RequestObject)resource).getRemoteDir();
+			String dir= ((MyFile)resource).getRemoteDir();
 		// create new dir (is it really needed in case of map object?)
 			if((dir !=null && !dir.isEmpty()) && (bucket !=null && !bucket.isEmpty())){
 				getMongoPrimaryInstance().buildDirTree(getMongoPrimaryInstance().getMetaDataCollection(null), dir);
 			}
 		// create new map object
-			id= createNewObjectMap(metaCollectionInstance, (RequestObject)resource, sourceObject, sourceId);
+			id= createNewObjectMap(metaCollectionInstance, (MyFile)resource, sourceObject, sourceId);
 		return id;
 	}
 	
-	private ObjectId createNewObjectMap(DBCollection metaCollectionInstance, RequestObject resource, GridFSDBFile source, ObjectId sourceId) throws UnknownHostException {
+	private ObjectId createNewObjectMap(DBCollection metaCollectionInstance, MyFile resource, GridFSDBFile source, ObjectId sourceId) throws UnknownHostException {
 		String md5=source.getMD5();
 	// set type of object	
 		DBObject document=new BasicDBObject("type", "map");
@@ -198,7 +207,7 @@ public class SoftCopyOperator extends SoftCopy {
 	return id;
 }
 	
-	private DBObject createNewLinkObject(RequestObject resource, GridFSDBFile sourceObject, String destination, DBCollection metaCollectionInstance, String md5, ObjectId mapId, ObjectId newId){
+	private DBObject createNewLinkObject(MyFile resource, GridFSDBFile sourceObject, String destination, DBCollection metaCollectionInstance, String md5, ObjectId mapId, ObjectId newId){
 		DBObject document=new BasicDBObject("type", "file");
 		document.put("filename", destination);
 		document.put("name", resource.getName());
@@ -208,25 +217,37 @@ public class SoftCopyOperator extends SoftCopy {
 		ObjectId id=null;
 		if(newId == null){
 			id=new ObjectId();
-			logger.debug("generated id for new object link"+id);
+			logger.debug("generated id for new object link "+id);
 		}else{
 			id=newId;
-			logger.debug("restored id for new object link"+id);
+			logger.debug("restored id for new object link "+id);
 		}
 		document.put("_id", id);
 		
 		return fillCommonfields(document, resource, sourceObject, metaCollectionInstance,  md5);
 	}
 
-	private DBObject fillCommonfields(DBObject document, RequestObject resource, GridFSDBFile sourceObject, DBCollection metaCollectionInstance, String md5) {
-		document.put("mimetype", ((RequestObject)resource).getMimeType());
+	private DBObject fillCommonfields(DBObject document, MyFile resource, GridFSDBFile sourceObject, DBCollection metaCollectionInstance, String md5) {
+		document.put("mimetype", ((MyFile)resource).getMimeType());
 		document.put("creationTime", DateUtils.now("dd MM yyyy 'at' hh:mm:ss z"));
 		document.put("md5", md5);
 		document.put("length", sourceObject.getLength());
 		// set chunkSize inherited from original object	
 		document.put("chunkSize", sourceObject.getChunkSize());
-		metaCollectionInstance.insert(document);
-		metaCollectionInstance.save(document);
+		try {
+			metaCollectionInstance.insert(document);
+			metaCollectionInstance.save(document);			
+		}catch (DuplicateKeyException e) {
+			logger.warn("key already present or not completely removed. Wait few seconds and retry");
+			try {
+				Thread.sleep(2000);
+			} catch (InterruptedException e1) {
+				// TODO Auto-generated catch block
+				e1.printStackTrace();
+			}
+			metaCollectionInstance.insert(document);
+			metaCollectionInstance.save(document);	
+		}
 		return document;
 	}
 
@@ -253,11 +274,21 @@ public class SoftCopyOperator extends SoftCopy {
 		searchQuery.put("_id" ,mapId);
 		DBObject mapObject=mongoPrimaryInstance.findCollectionObject(metaCollectionInstance, searchQuery);
 //		BasicDBObject updateObject= new BasicDBObject().append("$inc",new BasicDBObject().append("count", 1));;
-		int count=(int)mapObject.get("count");
-		count++;
-		mapObject.put("count", count);
-//		metaCollectionInstance.update(mapObject, updateObject);
-		metaCollectionInstance.save(mapObject);
+		if(!Objects.isNull(mapObject)) {
+			Object counting=mapObject.get("count");
+			if(Objects.nonNull(counting)) {
+				int count=(int)counting;
+				count++;
+				mapObject.put("count", count);
+			}else {
+				mapObject.put("count", 1);
+			}
+//			metaCollectionInstance.update(mapObject, updateObject);
+			metaCollectionInstance.save(mapObject);
+		}else {
+			logger.error("no object found associated to the following id: "+mapId);
+		}
+
 	}
 
 	private ObjectId getDuplicatesMap(String md5){
@@ -271,8 +302,11 @@ public class SoftCopyOperator extends SoftCopy {
 	 */
 	private boolean isMap(GridFSDBFile sourceObject) {
 		String type=sourceObject.get("type").toString();
-		if(type.equals("map"))
+		logger.debug("object type: "+type);
+		if(type.equals("map")) {
+			logger.debug("sourceFile is a map: "+sourceObject.toString());
 			return true;
+		}
 		return false;
 	}
 
@@ -305,11 +339,11 @@ public class SoftCopyOperator extends SoftCopy {
 		this.mongoPrimaryInstance = mongoPrimaryInstance;
 	}
 
-	public RequestObject getResource() {
+	public MyFile getResource() {
 		return resource;
 	}
 
-	public void setResource(RequestObject resource) {
+	public void setResource(MyFile resource) {
 		this.resource = resource;
 	}
 
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UnlockOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UnlockOperator.java
index 1176475..803bfe7 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UnlockOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UnlockOperator.java
@@ -5,13 +5,12 @@ package org.gcube.contentmanagement.blobstorage.transport.backend.operation;
 
 import java.io.FileNotFoundException;
 
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.OPERATION;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
 import org.gcube.contentmanagement.blobstorage.service.operation.Unlock;
-import org.gcube.contentmanagement.blobstorage.service.operation.Upload;
 import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -46,7 +45,7 @@ public class UnlockOperator extends Unlock {
 	 * @see org.gcube.contentmanagement.blobstorage.service.operation.Unlock#execute(org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO)
 	 */
 	@Override
-	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String bucket, String key4unlock) throws Exception {
+	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String bucket, String key4unlock) throws Exception {
 		String id=null;
 		OperationDefinition op=resource.getOperationDefinition();
 		REMOTE_RESOURCE remoteResourceIdentifier=resource.getOperation().getRemoteResource();
@@ -59,8 +58,8 @@ public class UnlockOperator extends Unlock {
 //			mongoPrimaryInstance.close();
 //			resource.setOperation(op);
 //		}
-		String dir=((RequestObject)resource).getRemoteDir();
-		String name=((RequestObject)resource).getName();
+		String dir=((MyFile)resource).getRemoteDir();
+		String name=((MyFile)resource).getName();
 		String path=getBucket(); 
 		if(logger.isDebugEnabled())
 			logger.debug("DIR: "+dir+" name: "+name+" fullPath "+path+" bucket: "+bucket);
@@ -69,7 +68,7 @@ public class UnlockOperator extends Unlock {
 			String oldir=(String)f.get("dir");
 	        if(logger.isDebugEnabled())
 	      	  logger.debug("old dir  found "+oldir);
-	        if((oldir.equalsIgnoreCase(((RequestObject)resource).getRemoteDir())) || ((RequestObject)resource).getRemoteDir()==null){
+	        if((oldir.equalsIgnoreCase(((MyFile)resource).getRemoteDir())) || ((MyFile)resource).getRemoteDir()==null){
 	         		  String lock=(String)f.get("lock");
 	     	  //check if the od file is locked		  
 	     	         if((lock !=null) && (!lock.isEmpty())){
@@ -77,14 +76,14 @@ public class UnlockOperator extends Unlock {
 	     	        	 if(lck.equalsIgnoreCase(key4unlock)){
 	     	        		f.put("lock", null);
 	     	        		f.put("timestamp", null);
-	     	        		mongoPrimaryInstance.updateCommonFields((GridFSFile)f, (RequestObject)resource, OPERATION.UNLOCK);
+	     	        		mongoPrimaryInstance.updateCommonFields((GridFSFile)f, (MyFile)resource, OPERATION.UNLOCK);
 	     	        		f.save();
 	     	        	 }else{
 	     	        		mongoPrimaryInstance.close();
 	     	        		 throw new IllegalAccessError("bad key for unlock");
 	     	        	 }
 	     	         }else{
-	     	        	mongoPrimaryInstance.updateCommonFields((GridFSFile)f, (RequestObject)resource, OPERATION.UNLOCK);
+	     	        	mongoPrimaryInstance.updateCommonFields((GridFSFile)f, (MyFile)resource, OPERATION.UNLOCK);
      	        		f.save();
 	     	         }
 	        }else{
diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UploadOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UploadOperator.java
index 9983a79..324fce7 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UploadOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/backend/operation/UploadOperator.java
@@ -5,7 +5,7 @@ package org.gcube.contentmanagement.blobstorage.transport.backend.operation;
 
 import java.io.IOException;
 import org.bson.types.ObjectId;
-import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
+import org.gcube.contentmanagement.blobstorage.resource.MyFile;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition;
 import org.gcube.contentmanagement.blobstorage.resource.OperationDefinition.REMOTE_RESOURCE;
 import org.gcube.contentmanagement.blobstorage.service.operation.Monitor;
@@ -44,12 +44,12 @@ public class UploadOperator extends Upload {
 	 * @see org.gcube.contentmanagement.blobstorage.service.operation.Upload#execute(org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO, org.gcube.contentmanagement.blobstorage.transport.backend.MongoIO)
 	 */
 	@Override
-	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, RequestObject resource, String bucket, boolean replace) throws IOException {
-		OperationDefinition op=((RequestObject)resource).getOperationDefinition();
-		REMOTE_RESOURCE remoteResourceIdentifier=((RequestObject)resource).getOperation().getRemoteResource();
+	public String execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance, MyFile resource, String bucket, boolean replace) throws IOException {
+		OperationDefinition op=((MyFile)resource).getOperationDefinition();
+		REMOTE_RESOURCE remoteResourceIdentifier=((MyFile)resource).getOperation().getRemoteResource();
 		logger.info("MongoClient put method: "+op.toString());
-		String dir=((RequestObject)resource).getRemoteDir();
-		String name=((RequestObject)resource).getName();		
+		String dir=((MyFile)resource).getRemoteDir();
+		String name=((MyFile)resource).getName();		
 		Object id=null;
 		ObjectId oldId=null;
 	// id of the remote file if present		
@@ -79,11 +79,11 @@ public class UploadOperator extends Upload {
 	}
 
 	public String executeSafeMode(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance) throws IOException {
-		OperationDefinition op=((RequestObject)resource).getOperationDefinition();
-		REMOTE_RESOURCE remoteResourceIdentifier=((RequestObject)resource).getOperation().getRemoteResource();
+		OperationDefinition op=((MyFile)resource).getOperationDefinition();
+		REMOTE_RESOURCE remoteResourceIdentifier=((MyFile)resource).getOperation().getRemoteResource();
 		logger.info("MongoClient put method: "+op.toString());
-		String dir=((RequestObject)resource).getRemoteDir();
-		String name=((RequestObject)resource).getName();		
+		String dir=((MyFile)resource).getRemoteDir();
+		String name=((MyFile)resource).getName();		
 		ObjectId id=null;
 		ObjectId oldId=null;
 // id of the remote file if present