ref 11720: DataMiner - Update to StorageHUB

https://support.d4science.org/issues/11720

Updated to StorageHub getPublicLink and getProperties functions.

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/data-miner-manager@169410 82a268e6-3cf1-43bd-a215-b396298e98cf

pom.xml

@@ -109,6 +109,14 @@
 					<scope>runtime</scope>
 				</dependency>
 
+				<!-- StorageHub -->
+				<dependency>
+					<groupId>org.gcube.common</groupId>
+					<artifactId>storagehub-client-library</artifactId>
+					<scope>runtime</scope>
+				</dependency>
+
+
 				<!-- Authorization -->
 				<dependency>
 					<groupId>org.gcube.common</groupId>
@@ -232,6 +240,12 @@
 			<scope>provided</scope>
 		</dependency>
 
+		<!-- StorageHub -->
+		<dependency>
+			<groupId>org.gcube.common</groupId>
+			<artifactId>storagehub-client-library</artifactId>
+			<scope>provided</scope>
+		</dependency>
 
 		<!-- Information System Client IC-Client -->
 		<dependency>
@@ -260,7 +274,7 @@
 		<dependency>
 			<groupId>org.gcube.portlets.widgets</groupId>
 			<artifactId>workspace-explorer</artifactId>
-			<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version> 
+			<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version>
 		</dependency>
 
 		<!-- Workspace Uploader -->
@@ -360,8 +374,8 @@
 					<runTarget>DataMinerManager.html</runTarget>
 					<hostedWebapp>${webappDirectory}</hostedWebapp>
 					<module>org.gcube.portlets.user.dataminermanager.dataminermanager</module>
-
+					<!-- <style>DETAILED</style> -->
-				</configuration>
+    			</configuration>
 			</plugin>
 
 

src/main/java/org/gcube/portlets/user/dataminermanager/client/PortalViewport.java

@@ -109,7 +109,7 @@ public class PortalViewport extends SimpleContainer {
 		}
 		
 		int viewHeight = calculateHeight();
-		Log.info("AM resize viewWidth: " + viewWidth + " viewHeight: "
+		Log.info("DataMiner resize viewWidth: " + viewWidth + " viewHeight: "
 				+ viewHeight + " clientWidth: " + Window.getClientWidth()
 				+ " clientHeight: " + Window.getClientHeight());
 		try {
@@ -127,7 +127,7 @@ public class PortalViewport extends SimpleContainer {
 	protected void onWindowResize(int width, int height) {
 		int viewWidth = calculateWidth();
 		int viewHeight = calculateHeight();
-		Log.trace("AM onWindowResize viewWidth: " + viewWidth
+		Log.trace("DataMiner onWindowResize viewWidth: " + viewWidth
 				+ " viewHeight: " + viewHeight + " clientWidth: "
 				+ Window.getClientWidth() + " clientHeight: "
 				+ Window.getClientHeight());
@@ -138,14 +138,14 @@ public class PortalViewport extends SimpleContainer {
 
 	protected int calculateWidth() {
 		int leftBorder = getAbsoluteLeft();
-		Log.info("AM width: "
+		Log.info("DataMiner width: "
 				+ String.valueOf(Window.getClientWidth() - 2 * leftBorder));
 		return Window.getClientWidth() - 2 * leftBorder;
 	}
 
 	protected int calculateHeight() {
 		int topBorder = getAbsoluteTop();
-		Log.info("AM height: "
+		Log.info("DataMiner height: "
 				+ String.valueOf(Window.getClientHeight() - topBorder - 34));
 		return Window.getClientHeight() - topBorder - 34;
 	}

src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/InputDataSetsPanel.java

@@ -5,6 +5,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.gcube.data.analysis.dataminermanagercl.shared.workspace.ItemDescription;
 import org.gcube.portal.clientcontext.client.GCubeClientContext;
 import org.gcube.portlets.user.dataminermanager.client.DataMinerManager;
 import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
@@ -18,7 +19,6 @@ import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaEle
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
 import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
-import org.gcube.data.analysis.dataminermanagercl.shared.workspace.ItemDescription;
 import org.gcube.portlets.widgets.workspaceuploader.client.WorkspaceUploadNotification.WorskpaceUploadNotificationListener;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.DialogUpload.UPLOAD_TYPE;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.dragdrop.MultipleDNDUpload;
@@ -288,7 +288,9 @@ public class InputDataSetsPanel extends FramedPanel {
 			};
 
 			dnd.addWorkspaceUploadNotificationListener(workspaceUploaderListener);
-
+			
+			
+			Log.debug("Create ToolBar for InputDataSetsPanel");
 			// ToolBar
 			btnDownload = new TextButton("Download");
 			btnDownload.setIcon(DataMinerManager.resources.download());

src/main/java/org/gcube/portlets/user/dataminermanager/client/dataspace/OutputDataSetsPanel.java

@@ -5,6 +5,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+import org.gcube.data.analysis.dataminermanagercl.shared.workspace.ItemDescription;
 import org.gcube.portal.clientcontext.client.GCubeClientContext;
 import org.gcube.portlets.user.dataminermanager.client.DataMinerManager;
 import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
@@ -18,7 +19,6 @@ import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaEle
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
 import org.gcube.portlets.user.dataminermanager.shared.exception.SessionExpiredServiceException;
-import org.gcube.data.analysis.dataminermanagercl.shared.workspace.ItemDescription;
 import org.gcube.portlets.widgets.workspaceuploader.client.WorkspaceUploadNotification.WorskpaceUploadNotificationListener;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.DialogUpload.UPLOAD_TYPE;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.dragdrop.MultipleDNDUpload;
@@ -147,7 +147,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 		}
 		switch (event.getDataMinerWorkAreaRegionType()) {
 		case Computations:
-			break;
+			break;	
 		case DataSets:
 			manageMyDataMinerWorkAreaEvents(event);
 			break;
@@ -250,10 +250,10 @@ public class OutputDataSetsPanel extends FramedPanel {
 			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelForOutput");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
-			Log.debug("Define DND for InputDataSetsPanel");
+			Log.debug("Define DND for OutputDataSetsPanel");
 
 			// DND
-
+			
 			dnd = new MultipleDNDUpload();
 			dnd.setParameters(event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId(), UPLOAD_TYPE.File);
 			dnd.addUniqueContainer(wsResourcesExplorerPanel);
@@ -287,7 +287,8 @@ public class OutputDataSetsPanel extends FramedPanel {
 			};
 
 			dnd.addWorkspaceUploadNotificationListener(workspaceUploaderListener);
-
+		
+			Log.debug("Create ToolBar for OutputDatasetsPanel");
 			// ToolBar
 			btnDownload = new TextButton("Download");
 			btnDownload.setIcon(DataMinerManager.resources.download());
@@ -340,6 +341,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 			v.add(toolBar, new VerticalLayoutData(1, -1, new Margins(0)));
 			v.add(dnd, new VerticalLayoutData(1, 1, new Margins(0)));
+			//v.add(wsResourcesExplorerPanel, new VerticalLayoutData(1, 1, new Margins(0)));
 			add(v);
 
 			v.addResizeHandler(new ResizeHandler() {
@@ -429,7 +431,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 						if (caught instanceof SessionExpiredServiceException) {
 							EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
 						} else {
-							Log.error("Error open file: " + caught.getLocalizedMessage());
+							Log.error("Error open file: " + caught.getLocalizedMessage(),caught);
 							UtilsGXT3.alert("Error", caught.getLocalizedMessage());
 						}
 						caught.printStackTrace();

src/main/java/org/gcube/portlets/user/dataminermanager/dataminermanager.gwt.xml

@@ -6,8 +6,10 @@
 	<!-- <inherits name='com.google.gwt.user.theme.clean.Clean' /> -->
 	<inherits name='com.sencha.gxt.ui.GXT' />
 	<!-- <inherits name="com.extjs.gxt.ui.GXT" /> -->
-
+	
-	<!-- <inherits name="com.google.gwt.logging.Logging" /> -->
+	<!-- 
+	<inherits name="com.google.gwt.logging.Logging" />
+	 -->
 
 	<inherits name="com.allen_sauer.gwt.log.gwt-log-TRACE" />
 
@@ -41,16 +43,21 @@
 	<entry-point
 		class='org.gcube.portlets.user.dataminermanager.client.DataMinerManager' />
 
-	<!-- <set-property name="log_ConsoleLogger" value="ENABLED" /> <set-property 
+	<!-- 
-		name="log_DivLogger" value="ENABLED" /> <set-property name="log_GWTLogger" 
+	<set-property name="log_ConsoleLogger" value="ENABLED" />
-		value="ENABLED" /> <set-property name="log_SystemLogger" value="ENABLED" 
+	<set-property name="log_DivLogger" value="ENABLED" />
-		/> -->
+	<set-property name="log_GWTLogger" value="ENABLED" />
+	<set-property name="log_SystemLogger" value="ENABLED" />
 
-	<set-property name="log_ConsoleLogger" value="DISABLED" />
-	<set-property name="log_DivLogger" value="DISABLED" />
-	<set-property name="log_GWTLogger" value="DISABLED" />
-	<set-property name="log_SystemLogger" value="DISABLED" />
 
+	<set-property name="gwt.logging.logLevel" value="SEVERE" />
+	<set-property name="gwt.logging.enabled" value="TRUE" />
+	<set-property name="gwt.logging.consoleHandler" value="ENABLED" /> -->
+	
+	<set-property name="log_ConsoleLogger" value="DISABLED" /> <set-property 
+		name="log_DivLogger" value="DISABLED" /> <set-property name="log_GWTLogger" 
+		value="DISABLED" /> <set-property name="log_SystemLogger" value="DISABLED" 
+		/>
 
 	<source path='client' />
 	<source path='shared' />

src/main/java/org/gcube/portlets/user/dataminermanager/server/DataMinerManagerServiceImpl.java

@@ -139,9 +139,10 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 	@Override
 	public ComputationId resubmit(ItemDescription itemDescription) throws ServiceException {
 		try {
+			StorageUtil storageUtil=new StorageUtil();
 			HttpServletRequest httpRequest = this.getThreadLocalRequest();
 			ServiceCredentials serviceCredentials = SessionUtil.getServiceCredentials(httpRequest);
-			Map<String, String> properties = StorageUtil.getProperties(serviceCredentials.getUserName(),
+			Map<String, String> properties = storageUtil.getProperties(serviceCredentials.getUserName(),
 					itemDescription.getId());
 			logger.debug("Properties: " + properties);
 
@@ -182,7 +183,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			HttpServletRequest httpRequest = this.getThreadLocalRequest();
 			ServiceCredentials serviceCredentials = SessionUtil.getServiceCredentials(httpRequest);
 			logger.debug("DeleteItem(): " + itemDescription);
-			StorageUtil.deleteItem(serviceCredentials.getUserName(), itemDescription.getId());
+			StorageUtil storageUtil=new StorageUtil();
+			storageUtil.deleteItem(serviceCredentials.getUserName(), itemDescription.getId());
 			return;
 
 		} catch (ServiceException e) {
@@ -236,7 +238,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			HttpServletRequest httpRequest = this.getThreadLocalRequest();
 			ServiceCredentials serviceCredentials = SessionUtil.getServiceCredentials(httpRequest);
 			logger.debug("GetPublicLink(): " + itemDescription);
-			String link = StorageUtil.getPublicLink(serviceCredentials.getUserName(), itemDescription.getId());
+			StorageUtil storageUtil=new StorageUtil();
+			String link = storageUtil.getPublicLink(serviceCredentials.getUserName(), itemDescription.getId());
 
 			return link;
 		} catch (ServiceException e) {
@@ -293,7 +296,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			HttpServletRequest httpRequest = this.getThreadLocalRequest();
 			ServiceCredentials serviceCredentials = SessionUtil.getServiceCredentials(httpRequest);
 			logger.debug("OutputDataByComputationItemt(): " + itemDescription);
-			Map<String, String> properties = StorageUtil.getProperties(serviceCredentials.getUserName(),
+			StorageUtil storageUtil=new StorageUtil();
+			Map<String, String> properties = storageUtil.getProperties(serviceCredentials.getUserName(),
 					itemDescription.getId());
 
 			logger.debug("Properties: " + properties);

src/main/java/org/gcube/portlets/user/dataminermanager/server/DownloadFolderServlet.java

@@ -3,7 +3,11 @@ package org.gcube.portlets.user.dataminermanager.server;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
 
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
@@ -106,15 +110,21 @@ public class DownloadFolderServlet extends HttpServlet {
 					.getParameter(Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER);
 			logger.debug("Request: [itemId=" + itemId + ", folderName="
 					+ folderName + "]");
-
+			StorageUtil storageUtil=new StorageUtil();
-			File tmpZip = StorageUtil.zipFolder(
+			InputStream is = storageUtil.zipFolder(
 					serviceCredentials.getUserName(), itemId);
+			Path tempFile = Files.createTempFile("dataMinerDownload", ".zip");
+			Files.copy(is, tempFile, StandardCopyOption.REPLACE_EXISTING);
+			File tmpZip= tempFile.toFile();
+			
 			response.setHeader("Content-Disposition", "attachment; filename=\""
 					+ folderName + ".zip\"");
 			response.setContentType("application/zip");
 			response.setHeader("Content-Length",
 					String.valueOf(tmpZip.length()));
 
+			
+			
 			OutputStream out = response.getOutputStream();
 
 			FileInputStream fileTmpZip = new FileInputStream(tmpZip);
@@ -122,13 +132,12 @@ public class DownloadFolderServlet extends HttpServlet {
 			out.flush();
 			out.close();
 			fileTmpZip.close();
-			tmpZip.delete();
+			Files.delete(tempFile);
 			return;
 
 		} catch (Throwable e) {
 			logger.error("Error in DownloadFolderServlet: "
-					+ e.getLocalizedMessage());
+					+ e.getLocalizedMessage(),e);
-			e.printStackTrace();
 			throw new ServletException("Error:" + e.getLocalizedMessage(), e);
 
 		}

src/main/java/org/gcube/portlets/user/dataminermanager/server/storage/StorageUtil.java

@@ -1,15 +1,24 @@
 package org.gcube.portlets.user.dataminermanager.server.storage;
 
-import java.io.File;
 import java.io.InputStream;
+import java.net.URL;
+import java.util.HashMap;
 import java.util.Map;
 
 import org.gcube.common.homelibrary.home.HomeLibrary;
-import org.gcube.common.homelibrary.home.workspace.Properties;
 import org.gcube.common.homelibrary.home.workspace.Workspace;
-import org.gcube.common.homelibrary.home.workspace.WorkspaceFolder;
 import org.gcube.common.homelibrary.home.workspace.WorkspaceItem;
-import org.gcube.common.homelibrary.util.zip.ZipUtil;
+import org.gcube.common.storagehub.client.StreamDescriptor;
+import org.gcube.common.storagehub.client.dsl.ItemContainer;
+import org.gcube.common.storagehub.client.dsl.OpenResolver;
+import org.gcube.common.storagehub.client.dsl.StorageHubClient;
+import org.gcube.common.storagehub.model.Metadata;
+import org.gcube.common.storagehub.model.items.AbstractFileItem;
+import org.gcube.common.storagehub.model.items.FolderItem;
+import org.gcube.common.storagehub.model.items.GenericFileItem;
+import org.gcube.common.storagehub.model.items.ImageFile;
+import org.gcube.common.storagehub.model.items.Item;
+import org.gcube.common.storagehub.model.items.PDFFileItem;
 import org.gcube.portlets.user.dataminermanager.shared.exception.ServiceException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -34,19 +43,22 @@ public class StorageUtil {
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static Map<String, String> getProperties(String user, String itemId) throws ServiceException {
+	public Map<String, String> getProperties(String user, String itemId) throws ServiceException {
 		try {
-			Workspace ws = HomeLibrary.getUserWorkspace(user);
+			StorageHubClient shc = new StorageHubClient();
-
+			Item item = shc.open(itemId).asItem().get();
-			WorkspaceItem workSpaceItem = ws.getItem(itemId);
+			Metadata metadata = item.getPropertyMap();
-			Properties properties = workSpaceItem.getProperties();
+			Map<String, String> itemMap = new HashMap<String, String>();
-
+			Map<String, Object> metadataMap = metadata.getValues();
-			return properties.getProperties();
+			for (String key : metadataMap.keySet()) {
+				String s = String.valueOf(metadataMap.get(key));
+				itemMap.put(key, s);
+			}
+			return itemMap;
 
 		} catch (Throwable e) {
-			logger.error(e.getLocalizedMessage());
+			logger.error("Error retrieving properties: " +e.getLocalizedMessage(), e);
-			e.printStackTrace();
+			throw new ServiceException(e.getLocalizedMessage(),e);
-			throw new ServiceException(e.getLocalizedMessage());
 		}
 
 	}
@@ -61,50 +73,33 @@ public class StorageUtil {
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static InputStream getInputStreamForItemOnWorkspace(String user, String itemId) throws ServiceException {
+	public  InputStream getInputStreamForItemOnWorkspace(String user, String itemId) throws ServiceException {
-		Workspace ws;
 		try {
-			ws = HomeLibrary.getUserWorkspace(user);
+			logger.debug("getInputStreamForItemOnWorkspace: [user="+user+", itemId="+itemId+"]");
+			StorageHubClient shc = new StorageHubClient();
+			ItemContainer<Item> itemContainer = shc.open(itemId).asItem();
+
+			Item item = itemContainer.get();
+			if (item instanceof AbstractFileItem) {
+				if (item instanceof GenericFileItem | item instanceof ImageFile | item instanceof PDFFileItem) {
+					StreamDescriptor streamDescriptor = itemContainer.download();
+					return streamDescriptor.getStream();
+				} else {
+					throw new ServiceException("Is not a valid file!");
+				}
+
+			} else {
+				throw new ServiceException("Is not a valid file!");
 
-			WorkspaceItem workSpaceItem = ws.getItem(itemId);
-			if (workSpaceItem.isFolder()) {
-				throw new ServiceException("Folder is not valid!");
 			}
 
-			return getInputStream(user, workSpaceItem);
-
 		} catch (Throwable e) {
-			logger.error(e.getLocalizedMessage());
+			logger.error("Error retrieving InputStream for Item: " +e.getLocalizedMessage(), e);
-			e.printStackTrace();
+			throw new ServiceException(e.getLocalizedMessage(),e);
-			throw new ServiceException(e.getLocalizedMessage());
 		}
 	}
 
-	/**
+	
-	 * 
-	 * @param user
-	 *            user
-	 * @param workspaceItem
-	 *            workspace item
-	 * @return input stream
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	private static InputStream getInputStream(String user, WorkspaceItem workspaceItem) throws ServiceException {
-		InputStream is = null;
-		try {
-
-			org.gcube.common.homelibrary.home.workspace.folder.items.File gcubeItem = ((org.gcube.common.homelibrary.home.workspace.folder.items.File) workspaceItem);
-			is = gcubeItem.getData();
-			return is;
-
-		} catch (Throwable e) {
-			logger.error("Error retrieving InputStream from storage", e);
-			e.printStackTrace();
-			throw new ServiceException("Error retrieving file from storage: " + e.getLocalizedMessage(), e);
-		}
-
-	}
 
 	/**
 	 * 
@@ -116,23 +111,16 @@ public class StorageUtil {
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static String getPublicLink(String user, String itemId) throws ServiceException {
+	public  String getPublicLink(String user, String itemId) throws ServiceException {
-		Workspace ws;
 		try {
-			ws = HomeLibrary.getUserWorkspace(user);
+			logger.debug("getPublicLink: [user="+user+", itemId="+itemId+"]");
-
+			StorageHubClient shc = new StorageHubClient();
-			WorkspaceItem workSpaceItem = ws.getItem(itemId);
+			URL url = shc.open(itemId).asFile().getPublicLink();
-			if (workSpaceItem.isFolder()) {
+			return url.toString();
-				throw new ServiceException("Attention this is a folder!");
+		
-			}
-
-			return workSpaceItem.getPublicLink(false);
-
 		} catch (Throwable e) {
-			logger.error("Error retrieving public link: " + e.getLocalizedMessage());
+			logger.error("Error retrieving public link: " + e.getLocalizedMessage(),e);
-			e.printStackTrace();
+			throw new ServiceException(e.getLocalizedMessage(),e);
-			throw new ServiceException(e.getLocalizedMessage());
-
 		}
 	}
 
@@ -142,30 +130,29 @@ public class StorageUtil {
 	 *            user
 	 * @param folderId
 	 *            folder id
-	 * @return zip folder
+	 * @return input stream
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static File zipFolder(String user, String folderId) throws ServiceException {
+	public  InputStream zipFolder(String user, String folderId) throws ServiceException {
-		Workspace ws;
 		try {
 			logger.debug("zipFolder: [user=" + user + ", folderId=" + folderId + "]");
-			ws = HomeLibrary.getUserWorkspace(user);
+			StorageHubClient shc = new StorageHubClient();
+			OpenResolver openResolver = shc.open(folderId);
 
-			WorkspaceItem workSpaceItem = ws.getItem(folderId);
+			ItemContainer<Item> itemContainer = openResolver.asItem();
-			if (!workSpaceItem.isFolder()) {
+			Item item = itemContainer.get();
-				throw new ServiceException("Item is not valid folder!");
+			if (item instanceof FolderItem) {
+				StreamDescriptor streamDescriptor = openResolver.asFolder().download();
+				InputStream is = streamDescriptor.getStream();
+				return is;
+			} else {
+				throw new ServiceException("Is not a valid folder!");
 			}
 
-			WorkspaceFolder folder = (WorkspaceFolder) workSpaceItem;
-
-			File fileZip = ZipUtil.zipFolder(folder);
-
-			return fileZip;
-
 		} catch (Throwable e) {
-			e.printStackTrace();
+			logger.error("Error in zip Folder: " +e.getLocalizedMessage(),e);
-			throw new ServiceException(e.getLocalizedMessage());
+			throw new ServiceException(e.getLocalizedMessage(),e);
 		}
 
 	}
@@ -180,9 +167,10 @@ public class StorageUtil {
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static WorkspaceItem getItemInRootFolderOnWorkspace(String user, String itemName) throws ServiceException {
+	public  WorkspaceItem getItemInRootFolderOnWorkspace(String user, String itemName) throws ServiceException {
 		Workspace ws;
 		try {
+			logger.debug("");
 			ws = HomeLibrary.getUserWorkspace(user);
 
 			WorkspaceItem item = ws.find(itemName, ws.getRoot().getId());
@@ -190,7 +178,7 @@ public class StorageUtil {
 			return item;
 
 		} catch (Throwable e) {
-			e.printStackTrace();
+			logger.error("Error in get Item in RootFolder: " +e.getLocalizedMessage(),e);
 			throw new ServiceException(e.getLocalizedMessage());
 		}
 	}
@@ -207,7 +195,7 @@ public class StorageUtil {
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static WorkspaceItem getItemInFolderOnWorkspace(String user, String folderId, String itemName)
+	public  WorkspaceItem getItemInFolderOnWorkspace(String user, String folderId, String itemName)
 			throws ServiceException {
 		Workspace ws;
 		try {
@@ -218,7 +206,7 @@ public class StorageUtil {
 			return item;
 
 		} catch (Throwable e) {
-			e.printStackTrace();
+			logger.error("Error in get Item in Folder: " +e.getLocalizedMessage(),e);
 			throw new ServiceException(e.getLocalizedMessage());
 		}
 	}
@@ -232,7 +220,7 @@ public class StorageUtil {
 	 * @throws ServiceException
 	 *             service exception
 	 */
-	public static void deleteItem(String user, String itemId) throws ServiceException {
+	public  void deleteItem(String user, String itemId) throws ServiceException {
 		Workspace ws;
 		try {
 			logger.debug("User: " + user + ", ItemId:" + itemId);
@@ -242,7 +230,7 @@ public class StorageUtil {
 
 			return;
 		} catch (Throwable e) {
-			e.printStackTrace();
+			logger.error("Error deleting Item: "+e.getLocalizedMessage(),e);
 			throw new ServiceException(e.getLocalizedMessage());
 
 		}

src/main/java/org/gcube/portlets/user/dataminermanager/server/util/DataMinerWorkAreaManager.java

@@ -36,8 +36,10 @@ public class DataMinerWorkAreaManager {
 
 	public DataMinerWorkArea getDataMinerWorkArea() throws ServiceException {
 		DataMinerWorkArea dataMinerWorkArea = null;
+		StorageUtil storageUtil=new StorageUtil();
 		try {
-			WorkspaceItem wiDataMinerFolder = StorageUtil
+			
+			WorkspaceItem wiDataMinerFolder = storageUtil
 					.getItemInRootFolderOnWorkspace(serviceCredentials.getUserName(),
 							DATA_MINER_FOLDER);
 
@@ -66,7 +68,7 @@ public class DataMinerWorkAreaManager {
 
 		InputDataSets inputDataSets = null;
 		try {
-			WorkspaceItem wiImportedDataFolder = StorageUtil
+			WorkspaceItem wiImportedDataFolder = storageUtil
 					.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
 							dataMinerWorkArea.getDataMinerWorkAreaFolder()
 									.getId(), IMPORTED_DATA_FOLDER);
@@ -88,7 +90,7 @@ public class DataMinerWorkAreaManager {
 
 		OutputDataSets outputDataSets = null;
 		try {
-			WorkspaceItem wiComputedDataFolder = StorageUtil
+			WorkspaceItem wiComputedDataFolder = storageUtil
 					.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
 							dataMinerWorkArea.getDataMinerWorkAreaFolder()
 									.getId(), COMPUTED_DATA_FOLDER);
@@ -109,7 +111,7 @@ public class DataMinerWorkAreaManager {
 
 		Computations computations = null;
 		try {
-			WorkspaceItem wiComputationsDataFolder = StorageUtil
+			WorkspaceItem wiComputationsDataFolder = storageUtil
 					.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
 							dataMinerWorkArea.getDataMinerWorkAreaFolder()
 									.getId(), COMPUTATIONS_FOLDER);

src/main/java/org/gcube/portlets/user/dataminermanager/server/util/TableReader.java

@@ -7,18 +7,17 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
-import net.sf.csv4j.CSVReader;
-
 import org.gcube.data.analysis.dataminermanagercl.server.util.ServiceCredentials;
-import org.gcube.portlets.user.dataminermanager.server.storage.StorageUtil;
 import org.gcube.data.analysis.dataminermanagercl.shared.data.ColumnItem;
 import org.gcube.data.analysis.dataminermanagercl.shared.data.TableItemSimple;
 import org.gcube.data.analysis.dataminermanagercl.shared.workspace.ItemDescription;
+import org.gcube.portlets.user.dataminermanager.server.storage.StorageUtil;
 import org.gcube.portlets.user.dataminermanager.shared.exception.ServiceException;
-import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import net.sf.csv4j.CSVReader;
+
 /**
  * 
  * @author Giancarlo Panichi
@@ -37,15 +36,15 @@ public class TableReader {
 	}
 
 	public TableItemSimple getTableItemSimple() throws ServiceException {
-
+		StorageUtil storageUtil=new StorageUtil();
-		InputStream is = StorageUtil.getInputStreamForItemOnWorkspace(
+		InputStream is = storageUtil.getInputStreamForItemOnWorkspace(
 				serviceCredentials.getUserName(), item.getId());
 		Reader fileReader = new InputStreamReader(is);
 		CSVReader csvReader = new CSVReader(fileReader);
 		List<String> firstLine = getFirstLine(csvReader, false);
 		ArrayList<String> columns = new ArrayList<String>(firstLine);
 		
-		String publicLink=StorageUtil.getPublicLink(serviceCredentials.getUserName(), item.getId());
+		String publicLink=storageUtil.getPublicLink(serviceCredentials.getUserName(), item.getId());
 		
 		TableItemSimple tableItemSimple=new TableItemSimple(publicLink,item.getName(), item.getType());
 		ArrayList<ColumnItem> columnItemList=new ArrayList<ColumnItem>();

src/main/resources/org/gcube/portlets/user/dataminermanager/dataminermanager.gwt.xml

@@ -6,8 +6,10 @@
 	<!-- <inherits name='com.google.gwt.user.theme.clean.Clean' /> -->
 	<inherits name='com.sencha.gxt.ui.GXT' />
 	<!-- <inherits name="com.extjs.gxt.ui.GXT" /> -->
-
+	
-	<!-- <inherits name="com.google.gwt.logging.Logging" /> -->
+	<!-- 
+	<inherits name="com.google.gwt.logging.Logging" />
+	 -->
 
 	<inherits name="com.allen_sauer.gwt.log.gwt-log-TRACE" />
 
@@ -41,15 +43,21 @@
 	<entry-point
 		class='org.gcube.portlets.user.dataminermanager.client.DataMinerManager' />
 
-	<!-- <set-property name="log_ConsoleLogger" value="ENABLED" /> <set-property 
+	<!-- 
-		name="log_DivLogger" value="ENABLED" /> <set-property name="log_GWTLogger" 
+	<set-property name="log_ConsoleLogger" value="ENABLED" />
-		value="ENABLED" /> <set-property name="log_SystemLogger" value="ENABLED" 
+	<set-property name="log_DivLogger" value="ENABLED" />
-		/> -->
+	<set-property name="log_GWTLogger" value="ENABLED" />
+	<set-property name="log_SystemLogger" value="ENABLED" />
 
-	<set-property name="log_ConsoleLogger" value="DISABLED" />
+
-	<set-property name="log_DivLogger" value="DISABLED" />
+	<set-property name="gwt.logging.logLevel" value="SEVERE" />
-	<set-property name="log_GWTLogger" value="DISABLED" />
+	<set-property name="gwt.logging.enabled" value="TRUE" />
-	<set-property name="log_SystemLogger" value="DISABLED" />
+	<set-property name="gwt.logging.consoleHandler" value="ENABLED" /> -->
+	
+	<set-property name="log_ConsoleLogger" value="DISABLED" /> <set-property 
+		name="log_DivLogger" value="DISABLED" /> <set-property name="log_GWTLogger" 
+		value="DISABLED" /> <set-property name="log_SystemLogger" value="DISABLED" 
+		/>
 
 	<source path='client' />
 	<source path='shared' />