Added new constructor in order to specify the Backend as input

parameter;
upgraded to version: 3.0.0-SNAPSHOT

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog for storage-manager-wrapper
 
+## [v2.6.0-SNAPSHOT] 2020-11-12
+
+* adding new constructor with the backendType as input parameter
+* retrieving specific backend credentials if a specific backend si specified as input parameter
+
 ## [v2.5.3] 2019-03-20
   * Added wrapper for HomeLibrary configuration related to the new preproduction infrastructure
   

pom.xml

@@ -8,7 +8,7 @@
   </parent>
   <groupId>org.gcube.contentmanagement</groupId>
   <artifactId>storage-manager-wrapper</artifactId>
-  <version>2.5.3</version>
+  <version>3.0.0-SNAPSHOT</version>
   <scm>
 				<connection>scm:git:https://code-repo.d4science.org/gCubeSystem/${project.artifactId}.git</connection>
 		<developerConnection>scm:git:https://code-repo.d4science.org/gCubeSystem/${project.artifactId}.git</developerConnection>

src/main/java/log4j.properties

@@ -1,15 +0,0 @@
-log4j.rootLogger=DEBUG, A1, stdout
-log4j.appender.A1=org.apache.log4j.RollingFileAppender
-log4j.appender.A1.File=log.txt
-log4j.appender.A1.layout=org.apache.log4j.PatternLayout
-log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
-# ***** Max file size is set to 100KB
-log4j.appender.A1.MaxFileSize=100MB
-# ***** Keep one backup file
-log4j.appender.A1.MaxBackupIndex=1
-
-#CONSOLE
-log4j.appender.stdout=org.apache.log4j.ConsoleAppender
-log4j.appender.stdout.Threshold=INFO
-log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
-log4j.appender.stdout.layout.ConversionPattern=[%t] %-5p %c %d{dd MMM yyyy ;HH:mm:ss.SSS}  - %m%n

src/main/java/org/gcube/contentmanager/storageclient/wrapper/BackendType.java

@@ -0,0 +1,15 @@
+package org.gcube.contentmanager.storageclient.wrapper;
+
+public enum BackendType {
+	MongoDB, S3;
+	
+	@Override
+	  public String toString() {
+	    switch(this) {
+	      case MongoDB: return "MongoDB";
+	      case S3: return "S3";
+	      default: throw new IllegalArgumentException();
+	    }
+	  }
+	
+}

src/main/java/org/gcube/contentmanager/storageclient/wrapper/Configuration.java

@@ -3,6 +3,7 @@ package org.gcube.contentmanager.storageclient.wrapper;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.TreeSet;
 
 import org.gcube.common.resources.gcore.ServiceEndpoint;
@@ -28,6 +29,7 @@ public class Configuration {
 	private String sn;
 	private String user;
 	private String password;
+	// if the backend is mongodb, this field is used for crypt/decrypt. If the backend is S3, this field is a token.		
 	private String passPhrase;
 	private ISClientConnector isclient;
 // the scope used for discovering the runtimeResource	
@@ -36,12 +38,17 @@ public class Configuration {
 	private String[] volatileHost;
 	private String[] persistentHosts;
 	private String resolverHost;
+	private String region;
+	
+
 	private static final Logger logger = LoggerFactory.getLogger(Configuration.class);
-	private static final String DEFAULT_BACKEND_TYPE="MongoDB";
+	protected static final String DEFAULT_BACKEND_TYPE="MongoDB";
 	private static final String WRITE_CONCERN_PROPERTY_NAME="write_concern";
 	private static final String READ_PREFERENCE_PROPERTY_NAME="read_preference";
 	private static final String DB_PROPERTY_NAME="collection";
 	private static final String DB_STRING_SEPARATOR=";";
+	private static final String PASS_PHRASE_FIELD="PassPhrase";
+	private static final String TOKEN_FIELD="token";
 	/**
 	 *  home library need a special configuration
 	 */
@@ -73,34 +80,49 @@ public class Configuration {
 		setScopeString(scopeString);
 	}
 	
+	/**
+	 * Loads all the configuration parameters in a java object for a specific backend
+	 * 	
+	 * @param sc: service class of the remote resource
+	 * @param sn service name of the remote resource
+	 * @param scopeString string that identifies the scope
+	 * @param owner user of the client library
+	 * @param clientID
+	 * @param accessType indicates the type of access to the storage
+	 * @param memory indicates the type of memory used by the storage: Persistent or Volatile
+	 * 
+	 */
+	public Configuration(String sc, String sn, String scopeString, String owner, String clientID, String accessType, String memory, String backend){
+		this.sc=sc;
+		this.sn=sn;
+		this.owner=owner;
+		this.clientID=clientID;
+		this.typeAccess=accessType;
+		this.memoryType=memory;
+		setScopeString(scopeString);
+		setBackendType(backend);
+	}
+	
 	/**
 	 * Retrieve a valid configuration from IS for instantiating the engine
 	 */
 	public void getConfiguration(){
 		String[]  newServer=null;
-//		ISClientConnector isclient=getISClient();
 		String currentScope=ScopeProvider.instance.get();
 		logger.debug("Scope found on ScopeProvider instance is "+currentScope);
-		
-/*COMMENTED THE FOLLOWING LINES 20181214*/		
-		
 		if(RRScope == null){
-//			if(new ScopeBean(currentScope).is(Type.VRE)){
-//				logger.debug("If ScopeProvider scope is VRE scope RR scope became VO scope");
-//				RRScope=new ScopeBean(currentScope).enclosingScope().toString();
-//			}else{
-//				logger.debug("If ScopeProvider scope is not a VRE scope RR scope is ScopeProvider scope");
 				RRScope=currentScope;
-//			}
 		}
-/*END*/		
 		logger.debug("RuntimeResource scope "+RRScope);
-		ServiceEndpoint resource=getISClient().getStorageEndpoint(RRScope);
+		//if a specific backend is not passed as input param then take the default one
+		if (Objects.isNull(getBackendType()))	
+			setBackendType(DEFAULT_BACKEND_TYPE);
+		ServiceEndpoint resource=getISClient(getBackendType()).getStorageEndpoint(RRScope);
 		if(resource ==null )
 			throw new IllegalStateException("the storage resource is not present on IS in scope: "+RRScope); 
-		List<ServiceEndpoint> resolverResource =getISClient().getServiceEndpoint(Utils.URI_RESOLVER_RESOURCE_CATEGORY, Utils.URI_RESOLVER_RESOURCE_NAME);
+		List<ServiceEndpoint> resolverResource =getISClient(getBackendType()).getServiceEndpoint(Utils.URI_RESOLVER_RESOURCE_CATEGORY, Utils.URI_RESOLVER_RESOURCE_NAME);
 		if(resolverResource !=null && resolverResource.size()> 0)
-			setResolverHost(getISClient().getResolverHost(resolverResource.get(0)));
+			setResolverHost(getISClient(getBackendType()).getResolverHost(resolverResource.get(0)));
 		else
 			throw new IllegalStateException("the uri resolver resource is not present on IS in scope: "+currentScope); 
 	// old method for retrieve hostedOn field in storage ServiceEndpoint resource	
@@ -108,13 +130,17 @@ public class Configuration {
 			logger.debug("server not set. Try to query IS in scope: "+scopeString);
 			String[] serverFound=checkVarEnvMongo();
 			if(serverFound==null){
-				serverFound=getISClient().retrieveConnectionInfo(resource);
-				setUser(getISClient().getUsername());
-				setPassword(getISClient().password);
-				setBackendType(getISClient().getBackendType(resource));
+				serverFound=getISClient(getBackendType()).retrieveConnectionInfo(resource);
+				setUser(getISClient(getBackendType()).getUsername());
+				setPassword(getISClient(getBackendType()).password);
+				setRegion(getISClient(getBackendType()).getRegion());
+				if (Objects.isNull(getBackendType()))
+				 setBackendType(getISClient(getBackendType()).getBackendType(resource));
 			}else{
-				setBackendType(checkVarEnvBackendType());
-				if(getBackendType() == null) setBackendType(DEFAULT_BACKEND_TYPE);
+				if (!Objects.isNull(getBackendType()))
+					setBackendType(checkVarEnvBackendType());
+				else
+					setBackendType(DEFAULT_BACKEND_TYPE);
 				setUser(checkVarEnvUser());
 				setPassword(checkVarEnvPassword());
 			}
@@ -128,15 +154,46 @@ public class Configuration {
 		if(newServer==null){
 			throw new IllegalStateException("Resource not found on Information System");
 		}else{
-			setEnvironment(setAreaStorage(getSc(), getSn()));
-			setServerHosts(newServer, isclient, resource);
-			try {
-				setPassPhrase(retrieveEncryptionPhrase());
-			} catch (Exception e) {
-				e.printStackTrace();
+			setEnvironment(setAreaStorage(getSc(), getSn()));			
+//	if the backend is mongodb we should set a separated server for volatile area
+			if(getBackendType().equals("MongoDB")) {
+				setServerHosts(newServer, isclient, resource);
+				try {
+					setPassPhrase(retrieveEncryptionField(PASS_PHRASE_FIELD));
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
+			}else {
+// if the backend isn't mongodb, the passPhrase field will be filled with a token if it is present on ServiceEndpoint				
+				try {
+					setPassPhrase(retrieveEncryptionField(TOKEN_FIELD));
+					
+				} catch (Exception e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+				setPersistentHosts(newServer);
+				
 			}
 		}
+		
+		logger.debug("Configuration parameters retrieved: host: "+getPersistentHosts()+" user: "+getUser());
 	}
+	
+	
+//	/**
+//	 * Retrieve a valid configuration from IS for instantiating the engine
+//	 */
+//	public void getConfiguration2(){
+//		String currentScope=ScopeProvider.instance.get();
+//		ServiceEndpoint resource=getISClient().getStorageEndpoint(currentScope);
+//		if((getMemoryType() != null) && ((getMemoryType().equals(MemoryType.VOLATILE.toString()) || (getMemoryType().equals(MemoryType.BOTH.toString()))))){
+//			setVolatileHost(isclient.getVolatileHost(resource));
+//		}
+//	}
+//	
+	
+	
 
 	private void setServerHosts(String[] newServer, ISClientConnector isclient, ServiceEndpoint resource) {
 		if((getMemoryType() != null) && ((getMemoryType().equals(MemoryType.VOLATILE.toString()) || (getMemoryType().equals(MemoryType.BOTH.toString()))))){
@@ -192,11 +249,11 @@ public class Configuration {
 		String dbString=null;
 	// check optional properties only if it is not a volatile storage instance	
 		if((getMemoryType() != null) && (!(getMemoryType().equals(MemoryType.VOLATILE.toString())))){
-			write=getISClient().retrievePropertyValue(WRITE_CONCERN_PROPERTY_NAME, currentScope);
+			write=getISClient(getBackendType()).retrievePropertyValue(WRITE_CONCERN_PROPERTY_NAME, currentScope);
 			logger.debug("read preference: read from service endpoint");
-			read=getISClient().retrievePropertyValue(READ_PREFERENCE_PROPERTY_NAME, currentScope);
+			read=getISClient(getBackendType()).retrievePropertyValue(READ_PREFERENCE_PROPERTY_NAME, currentScope);
 			logger.debug(" write preference: read from service endpoint");
-			dbString=getISClient().retrievePropertyValue(DB_PROPERTY_NAME, currentScope);
+			dbString=getISClient(getBackendType()).retrievePropertyValue(DB_PROPERTY_NAME, currentScope);
 			if((write!=null) && (read!=null)){
 				engine.setWriteConcern(write);
 				engine.setReadConcern(read);
@@ -210,11 +267,12 @@ public class Configuration {
 				}
 				if (dbNames.length > 1)
 					logger.debug("multiple collection discovered");
-				engine.setDbNames(dbNames);
+				if (Objects.isNull(engine.getDbNames()))
+					engine.setDbNames(dbNames);
 			}
 // added db check also on volatile are			
 		}else if((getMemoryType().equals(MemoryType.VOLATILE.toString()))){
-			dbString=getISClient().retrievePropertyValue(DB_PROPERTY_NAME, currentScope);
+			dbString=getISClient(getBackendType()).retrievePropertyValue(DB_PROPERTY_NAME, currentScope);
 			if(dbString!=null){
 				if (dbString.contains(DB_STRING_SEPARATOR)){
 					logger.debug("more than one collection read from ServiceEnpoint");
@@ -326,19 +384,31 @@ public class Configuration {
         return null;
 	}
 	
-	
+	@Deprecated
 	public String retrieveEncryptionPhrase() throws Exception {
 		String currentScope=ScopeProvider.instance.get();
 		logger.debug("retrieve encryption prhase on scope: "+currentScope);
 		String encryptedKey=null;
 //		ISClientConnector isclient=getISClient();
 		logger.info("retrieve encryption phrase from scope "+currentScope);
-		encryptedKey=getISClient().retrievePropertyValue("PassPhrase", currentScope);
+		encryptedKey=getISClient(getBackendType()).retrievePropertyValue("PassPhrase", currentScope);
 		logger.info("encrypted prhase is "+encryptedKey);
 		String decryptString=org.gcube.common.encryption.StringEncrypter.getEncrypter().decrypt(encryptedKey);
 		return decryptString;
 	}
 
+	public String retrieveEncryptionField(String fieldName) throws Exception {
+		String currentScope=ScopeProvider.instance.get();
+		logger.debug("retrieve encryption prhase on scope: "+currentScope);
+		String encryptedKey=null;
+//		ISClientConnector isclient=getISClient();
+		logger.info("retrieve encryption phrase from scope "+currentScope);
+		encryptedKey=getISClient(getBackendType()).retrievePropertyValue(fieldName, currentScope);
+		logger.info("encrypted prhase is "+encryptedKey);
+		String decryptString=(!Objects.isNull(encryptedKey))?org.gcube.common.encryption.StringEncrypter.getEncrypter().decrypt(encryptedKey):null;
+		return decryptString;
+	}
+
 
 	public String getClientID() {
 		return clientID;
@@ -460,10 +530,14 @@ public class Configuration {
 		this.resolverHost = resolverHost;
 	}
 	
-	public ISClientConnector getISClient(){
-		if (isclient == null)
-			isclient=new ISClientConnector();
-		return isclient;
+	private ISClientConnector getISClient(String backendType){
+//		if ((isclient == null) || (isclient.getBackendType().equals(backendType)))
+//			isclient=new ISClientConnector(backendType);
+//	
+//			return isclient;	
+			
+		return isclient=((isclient == null) || (!isclient.getBackendType().equals(backendType)))?new ISClientConnector(backendType):isclient;
+			
 	}
 
 	public String getSc() {
@@ -481,5 +555,13 @@ public class Configuration {
 	public void setSn(String sn) {
 		this.sn = sn;
 	}
+	
+	public String getRegion() {
+		return region;
+	}
+
+	public void setRegion(String region) {
+		this.region = region;
+	}
 
 }

src/main/java/org/gcube/contentmanager/storageclient/wrapper/ISClientConnector.java

@@ -8,8 +8,11 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
+
 import org.gcube.common.encryption.StringEncrypter;
 import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
+import org.gcube.contentmanager.storageclient.wrapper.BackendType;
 import org.gcube.common.resources.gcore.ServiceEndpoint;
 import org.gcube.common.resources.gcore.ServiceEndpoint.Property;
 import org.gcube.common.scope.api.ScopeProvider;
@@ -34,8 +37,13 @@ public class ISClientConnector {
 	protected String username;
 	protected String password;
 	protected ServiceEndpoint storageResource;
+	public String region;
 	private static HashMap<String, Object> isCache;
 	
+	public ISClientConnector(String backendType){
+		setBackendType(backendType);
+	}
+	
 	public ISClientConnector(){
 	}
 	
@@ -84,39 +92,76 @@ public class ISClientConnector {
 	
 	
 	private String[] fillConnectionFields(ServiceEndpoint resource) {
+		logger.debug("fillConnectionsFields method ");
 		if(resource!=null){
-			String [] server=new String[resource.profile().accessPoints().size()];
-			int i=0;
-			for (AccessPoint ap:resource.profile().accessPoints()) {
-				if (ap.name().equals("server"+(i+1))) {
-					server[i] = ap.address();
-					// if presents, try to get user and password			
-					setUsername(ap.username());
-					// set password default value to empty string
-					setPassword("");
-					if(getUsername() != null && getUsername().length() > 0){
-						try {
-							setPassword(StringEncrypter.getEncrypter().decrypt(ap.password()));
-						} catch (Exception e) {
-							// TODO Auto-generated catch block
-							e.printStackTrace();
+			logger.debug("checking resource "+resource.id());
+			ArrayList<String> server=new ArrayList<String> ();//new String[resource.profile().accessPoints().size()];			
+			if(!(getBackendType().equals(BackendType.MongoDB.name()))) {
+				logger.info("searching backend: "+getBackendType());
+				for (AccessPoint ap:resource.profile().accessPoints()) {
+					if( (ap.name().equals(getBackendType()))){
+						//in v1.6.0 we are considering only one accessPoint for a backend except for mongodb.
+						server.add( ap.address());
+						// if presents, try to get user and password			
+						setUsername(ap.username());
+						decryptPwd(ap);
+						setRegion(retrievePropertyValue(ap, "region")); 
+						break;
+					}
+				}
+			}else {
+				int i=0;
+			
+				for (AccessPoint ap:resource.profile().accessPoints()) {
+					 if (ap.name().equals("server"+(i+1))) {
+	
+						server.add(ap.address());
+						setUsername(ap.username());
+						setPassword("");
+						if(getUsername() != null && getUsername().length() > 0){
+							try {
+								setPassword(StringEncrypter.getEncrypter().decrypt(ap.password()));
+							} catch (Exception e) {
+								// TODO Auto-generated catch block
+								e.printStackTrace();
+							}
 						}
+						i++;
 					}
-					i++;
 				}
+				logger.info("credentials Mongodb: "+getUsername()+" "+getPassword());
+//				setBackendType(retrievePropertyValue(resource, "type"));
 			}
-			setBackendType(retrievePropertyValue(resource, "type"));
+			
 			String [] volatileHost= new String [1];
 			volatileHost[0]=retrievePropertyValue(resource, "volatile");
 			setVolatileHost(volatileHost);
 			logger.info("Type of backend found in RR is "+backendType);
-			return server;
+			String [] servers= new String[server.size()];
+			servers=server.toArray(servers);
+			return servers;
 
 		}else{
 			throw new IllegalStateException("Runtime Resource found are more than 1 but all without default priority setted");
 		}
 	}
 
+
+	
+
+	private void decryptPwd(AccessPoint ap) {
+		// set password default value to empty string
+		setPassword("");
+		if(getUsername() != null && getUsername().length() > 0){
+			try {
+				setPassword(StringEncrypter.getEncrypter().decrypt(ap.password()));
+			} catch (Exception e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		}
+	}
+
 	private ServiceEndpoint getPriorityResource(List<ServiceEndpoint> resources) {
 		ServiceEndpoint defaultResource=null;
 		logger.info("search RR with priority ");
@@ -164,6 +209,17 @@ public class ISClientConnector {
 		}
 		return value;
 	}
+	
+	public String retrievePropertyValue(AccessPoint ap, String name) {
+			String value=null;
+			Map<String, Property>map= ap.propertyMap();
+			Property type=map.get(name);
+			if(type!=null){
+				value=type.value();
+				
+			}
+		return value;
+	}
 
 	private String retrievePropertyValue(ServiceEndpoint res, String name) {
 		Iterator<AccessPoint> it= res.profile().accessPoints().iterator();
@@ -193,7 +249,7 @@ public class ISClientConnector {
 		return backendType;
 	}
 
-	public void setBackendType(String backendType) {
+	private void setBackendType(String backendType) {
 		this.backendType = backendType;
 	}
 
@@ -229,6 +285,14 @@ public class ISClientConnector {
 		this.storageResource = storageResource;
 	}
 
+	private void setRegion(String region) {
+		this.region=region;
+		
+	}
+	
+	public String getRegion() {
+		return region;
+	}
 
 	
 }

src/main/java/org/gcube/contentmanager/storageclient/wrapper/StorageClient.java

@@ -1,9 +1,12 @@
-package org.gcube.contentmanager.storageclient.wrapper;
+ package org.gcube.contentmanager.storageclient.wrapper;
 
-//import org.gcube.contentmanagement.blobstorage.resource.AccessType;
+import org.gcube.contentmanager.storageclient.wrapper.BackendType;
 import org.gcube.contentmanager.storageclient.wrapper.AccessType;
 //import org.gcube.contentmanagement.blobstorage.resource.MemoryType;
 import org.gcube.contentmanager.storageclient.wrapper.MemoryType;
+
+import java.util.Objects;
+
 import org.gcube.common.scope.api.ScopeProvider;
 import org.gcube.contentmanagement.blobstorage.service.IClient;
 import org.gcube.contentmanagement.blobstorage.service.impl.ServiceEngine;
@@ -96,6 +99,34 @@ public class StorageClient {
 	}
 	
 	
+	/**
+	 * New constructor with another optional argument created for gcube infrastructure internal use.
+	 * Available in v1.6.0
+	 * It's possible to specify a specific backend. 
+	 * @param ServiceClass 
+	 * @param ServiceName
+	 * @param owner
+	 * @param typeAccess
+	 * @param scope
+	 */
+	public StorageClient(String serviceClass, String serviceName, String owner, AccessType accessType, BackendType backend){
+		checkScopeProvider();
+		String id=owner;
+		this.owner=owner;
+		this.scopeString=ScopeProvider.instance.get();
+		if(accessType!=null)
+			this.typeAccess=accessType;
+		else throw new RuntimeException("AccessType parameter must be not null");
+		this.memoryType=MemoryType.BOTH;
+		this.serviceClass=serviceClass;
+		this.serviceName=serviceName;
+		this.setBackendType(backend.toString());
+		setClientId(serviceClass, serviceName, id);
+		
+	}
+	
+	
+	
 	/**
 	 * Constructor created for external use
 	 * @param owner
@@ -170,6 +201,35 @@ public class StorageClient {
 		this.serviceName=serviceName;
 		setClientId(serviceClass, serviceName, id);
 	}
+	
+	
+	/**
+	 * Available in v1.6.0
+	 * It's possible to specify a specific backend.
+	 * @param ServiceClass 
+	 * @param ServiceName
+	 * @param owner
+	 * @param typeAccess
+	 * @param backend: specify mongodb (default) or s3
+	 * @param memory defines the kind of memory: VOLATILE or PERSISTENT
+	 * @param scope
+	 */
+	public StorageClient(String serviceClass, String serviceName, String owner, AccessType accessType, MemoryType memory, BackendType backend){
+		checkScopeProvider();
+		String id=owner;
+		this.owner=owner;
+		this.scopeString=ScopeProvider.instance.get();
+		if(accessType!=null)
+			this.typeAccess=accessType;
+		else throw new RuntimeException("AccessType parameter must be not null");
+		if(memory!=null)
+			this.memoryType=memory;
+		else throw new RuntimeException("MemoryType parameter must be not null");
+		this.serviceClass=serviceClass;
+		this.serviceName=serviceName;
+		setClientId(serviceClass, serviceName, id);
+		this.setBackendType(backend.toString());
+	}
 
 	
 	
@@ -207,7 +267,11 @@ public class StorageClient {
 	 * @throws IllegalStateException if the resource is not found on the IS 
 	 */
 	public IClient getClient(){
-			Configuration cfg= new Configuration(serviceClass, serviceName, scopeString, owner, clientID, typeAccess.toString(), memoryType.toString());
+		Configuration  cfg=null;
+		if(Objects.isNull(getBackendType()))
+			cfg= new Configuration(serviceClass, serviceName, scopeString, owner, clientID, typeAccess.toString(), memoryType.toString());
+		else
+			cfg= new Configuration(serviceClass, serviceName, scopeString, owner, clientID, typeAccess.toString(), memoryType.toString(), getBackendType());
 			cfg.getConfiguration();
 			ServiceEngine engine= new ServiceEngine(cfg.getPersistentHosts(), cfg.getVolatileHost(), cfg.getEnvironment(), cfg.getTypeAccess(), cfg.getOwner(), cfg.getMemoryType());
 	// set additional fields for the new engine object		
@@ -218,8 +282,11 @@ public class StorageClient {
 			engine.setBackendUser(cfg.getUser());
 			engine.setBackendPassword(cfg.getPassword());
 			engine.setResolverHost(cfg.getResolverHost());
-			if(cfg.getPassPhrase()!=null)
+			engine.setRegion(cfg.getRegion());
+			if(cfg.getPassPhrase()!=null) {
 				engine.setPassPhrase(cfg.getPassPhrase());
+				engine.setToken(cfg.getPassPhrase());
+			}
 			if(getMemoryType() !=null)
 				engine.setGcubeMemoryType(getMemoryType().toString());
 			engine.setGcubeScope(ScopeProvider.instance.get());
@@ -370,6 +437,9 @@ public class StorageClient {
 
 
 	public String getBackendType() {
+		if(Objects.isNull(backendType))
+			backendType=Configuration.DEFAULT_BACKEND_TYPE;
+		logger.debug("backend type returned is "+backendType);
 		return backendType;
 	}
 

src/test/java/org/gcube/contentmanager/storageclient/test/GetMetaFileTest.java

@@ -6,7 +6,7 @@ import java.io.File;
 import java.util.List;
 
 import org.gcube.common.scope.api.ScopeProvider;
-import org.gcube.contentmanagement.blobstorage.resource.MyFile;
+import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
 import org.gcube.contentmanagement.blobstorage.resource.StorageObject;
 import org.gcube.contentmanagement.blobstorage.service.IClient;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
@@ -53,7 +53,7 @@ public class GetMetaFileTest {
 	
 	@Test
 	public void getMetaFileByPath() throws RemoteBackendException {
-		MyFile f= client.getMetaFile().RFile(remotePath);
+		RequestObject f= client.getMetaFile().RFile(remotePath);
 //		System.out.println("mime is: "+f.getMimeType());
 		client.put(true, "image/png").LFile("src/test/resources/dog.jpg").RFile(remotePath);
 		f= client.getMetaFile().RFile(remotePath);
@@ -70,7 +70,7 @@ public class GetMetaFileTest {
 	
 	@Test
 	public void getMetaFileById() throws RemoteBackendException {
-		MyFile f= client.getMetaFile().RFile(id);
+		RequestObject f= client.getMetaFile().RFile(id);
 		assertNotNull(f);
 		assertEquals(id, f.getId());
 		print(f);
@@ -89,7 +89,7 @@ public class GetMetaFileTest {
 		assertTrue(list.isEmpty());
 	}
 	
-	private void print(MyFile f) {
+	private void print(RequestObject f) {
 		System.out.println("\t name "+f.getName());
 		System.out.println("\t size "+f.getSize());
 		System.out.println("\t owner "+f.getOwner());

src/test/java/org/gcube/contentmanager/storageclient/test/PropertiesTest.java

@@ -6,7 +6,7 @@ import java.io.File;
 import java.util.List;
 
 import org.gcube.common.scope.api.ScopeProvider;
-import org.gcube.contentmanagement.blobstorage.resource.MyFile;
+import org.gcube.contentmanagement.blobstorage.resource.RequestObject;
 import org.gcube.contentmanagement.blobstorage.resource.StorageObject;
 import org.gcube.contentmanagement.blobstorage.service.IClient;
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
@@ -53,12 +53,12 @@ public class PropertiesTest {
 	public void getPropertyByPath() throws RemoteBackendException {
 		String valueFound= client.getMetaInfo(field).RFile(remotePath);
 		System.out.println("value found for property: "+field+" is "+valueFound);
-		MyFile f= client.getMetaFile().RFile(remotePath);
+		RequestObject f= client.getMetaFile().RFile(remotePath);
 		assertNotNull(f);
 		print(f);
 		String result= client.setMetaInfo(field, value).RFile(remotePath);
 		System.out.println("new property set ");
-		MyFile f1= client.getMetaFile().RFile(remotePath);
+		RequestObject f1= client.getMetaFile().RFile(remotePath);
 		print(f1);
 		assertNotNull(f1);
 		assertEquals(f1.getMimeType(), value);
@@ -70,12 +70,12 @@ public class PropertiesTest {
 	public void getPropertyById() throws RemoteBackendException {
 		String valueFound= client.getMetaInfo(field).RFile(id);
 		System.out.println("value found for property: "+field+" is "+valueFound);
-		MyFile f= client.getMetaFile().RFile(id);
+		RequestObject f= client.getMetaFile().RFile(id);
 		assertNotNull(f);
 		print(f);
 		String result= client.setMetaInfo(field, value).RFile(id);
 		System.out.println("new property set ");
-		MyFile f1= client.getMetaFile().RFile(id);
+		RequestObject f1= client.getMetaFile().RFile(id);
 		print(f1);
 		assertNotNull(f1);
 		assertEquals(f1.getMimeType(), value);
@@ -85,7 +85,7 @@ public class PropertiesTest {
 //	@Test
 	public void setProperty() throws RemoteBackendException {
 		String result= client.setMetaInfo(field, value).RFile(id);
-		MyFile f= client.getMetaFile().RFile(remotePath);
+		RequestObject f= client.getMetaFile().RFile(remotePath);
 		assertNotNull(f);
 		print(f);
 
@@ -99,7 +99,7 @@ public class PropertiesTest {
 		removeLocalFile();
 	}
 	
-	private void print(MyFile f) {
+	private void print(RequestObject f) {
 		System.out.println("\t name "+f.getName());
 		System.out.println("\t size "+f.getSize());
 		System.out.println("\t owner "+f.getOwner());