ref 9114: DataMiner - Add pagination to Workspace Explorer

https://support.d4science.org/issues/9114

Added pagination to Workspace Explorer 

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/data-miner-manager@151145 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/dataminermanager/client/computations/ComputationsExecutedPanel.java

@@ -59,7 +59,7 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private Item selectedItem;
 	private MultipleDNDUpload dnd;
-	//private WorkspaceResourcesExplorerPanel ;
+	// private WorkspaceResourcesExplorerPanel ;
 	private WorkspaceResourcesExplorerPanelPaginated wsResourcesExplorerPanel;
 	private TextButton btnShow;
 	private TextButton btnDownload;
@@ -94,15 +94,14 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void bindToEvents() {
 
-		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE,
-				new UIStateEvent.UIStateEventHandler() {
+		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE, new UIStateEvent.UIStateEventHandler() {
 
-					@Override
-					public void onChange(UIStateEvent event) {
-						manageStateEvents(event);
+			@Override
+			public void onChange(UIStateEvent event) {
+				manageStateEvents(event);
 
-					}
-				});
+			}
+		});
 
 		EventBusProvider.INSTANCE.addHandler(DataMinerWorkAreaEvent.TYPE,
 				new DataMinerWorkAreaEvent.DataMinerWorkAreaEventHandler() {
@@ -115,19 +114,16 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 				});
 
-		EventBusProvider.INSTANCE
-				.addHandler(
-						RefreshDataMinerWorkAreaEvent.TYPE,
-						new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
+		EventBusProvider.INSTANCE.addHandler(RefreshDataMinerWorkAreaEvent.TYPE,
+				new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
 
-							@Override
-							public void onRefresh(
-									RefreshDataMinerWorkAreaEvent event) {
-								manageRefreshDataMinerWorkAreaEvents(event);
+					@Override
+					public void onRefresh(RefreshDataMinerWorkAreaEvent event) {
+						manageRefreshDataMinerWorkAreaEvents(event);
 
-							}
+					}
 
-						});
+				});
 
 	}
 
@@ -152,8 +148,7 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void manageDataMinerWorkAreaEvents(DataMinerWorkAreaEvent event) {
 
-		Log.debug("ComputationsExecutedPanel recieved DataMinerWorkAreaEvent: "
-				+ event);
+		Log.debug("ComputationsExecutedPanel recieved DataMinerWorkAreaEvent: " + event);
 		if (event == null) {
 			Log.error("DataMinerWorkAreaEvent null");
 			return;
@@ -183,10 +178,8 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	}
 
-	private void manageRefreshDataMinerWorkAreaEvents(
-			RefreshDataMinerWorkAreaEvent event) {
-		Log.debug("ComputationsExecutedPanel recieved RefreshDataMinerWorkAreaEvent: "
-				+ event);
+	private void manageRefreshDataMinerWorkAreaEvents(RefreshDataMinerWorkAreaEvent event) {
+		Log.debug("ComputationsExecutedPanel recieved RefreshDataMinerWorkAreaEvent: " + event);
 		if (event == null) {
 			Log.error("RefreshDataMinerWorkAreaEvent null");
 			return;
@@ -206,17 +199,14 @@ public class ComputationsExecutedPanel extends FramedPanel {
 	}
 
 	private void create(DataMinerWorkAreaEvent event) {
+		Log.debug("Create ComputationsExecutedPanel");
 		try {
 
-			if (event == null
-					|| event.getDataMinerWorkArea() == null
+			if (event == null || event.getDataMinerWorkArea() == null
 					|| event.getDataMinerWorkArea().getComputations() == null
-					|| event.getDataMinerWorkArea().getComputations()
-							.getFolder() == null
-					|| event.getDataMinerWorkArea().getComputations()
-							.getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getComputations()
-							.getFolder().getId().isEmpty()) {
+					|| event.getDataMinerWorkArea().getComputations().getFolder() == null
+					|| event.getDataMinerWorkArea().getComputations().getFolder().getId() == null
+					|| event.getDataMinerWorkArea().getComputations().getFolder().getId().isEmpty()) {
 				if (v != null) {
 					remove(v);
 					forceLayout();
@@ -226,23 +216,27 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			}
 
 			List<String> showProperties = new ArrayList<String>();
-			for (ComputationsPropertiesType computationsProperties : ComputationsPropertiesType
-					.values()) {
+			for (ComputationsPropertiesType computationsProperties : ComputationsPropertiesType.values()) {
 				showProperties.add(computationsProperties.getLabel());
 			}
 			FilterCriteria filterCriteria = new FilterCriteria();
 			Map<String, String> map = new HashMap<String, String>();
 			filterCriteria.setRequiredProperties(map);
 
-			/*wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanel(
-					event.getDataMinerWorkArea().getComputations().getFolder()
-							.getId(), false, showProperties, filterCriteria,
-					true, DISPLAY_FIELD.CREATION_DATE);*/
-			
-			wsResourcesExplorerPanel=new WorkspaceResourcesExplorerPanelPaginated(event.getDataMinerWorkArea().getComputations().getFolder()
-					.getId(), false, showProperties, filterCriteria,
-			true, DISPLAY_FIELD.CREATION_DATE);
-			
+			/*
+			 * wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanel(
+			 * event.getDataMinerWorkArea().getComputations().getFolder()
+			 * .getId(), false, showProperties, filterCriteria, true,
+			 * DISPLAY_FIELD.CREATION_DATE);
+			 */
+			Log.debug("Create wsResourcesExplorerPanel for Computations: ["
+					+ event.getDataMinerWorkArea().getComputations().getFolder().getId() + ", false, " + showProperties
+					+ ", " + filterCriteria + ", true, " + DISPLAY_FIELD.CREATION_DATE + "]");
+
+			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanelPaginated(
+					event.getDataMinerWorkArea().getComputations().getFolder().getId(), false, showProperties,
+					filterCriteria, true, DISPLAY_FIELD.CREATION_DATE);
+			Log.debug("Created wsResourcesExplorerPanel");
 			WorskpaceExplorerSelectNotificationListener wsResourceExplorerListener = new WorskpaceExplorerSelectNotificationListener() {
 				@Override
 				public void onSelectedItem(Item item) {
@@ -267,10 +261,10 @@ public class ComputationsExecutedPanel extends FramedPanel {
 					selectedItem = null;
 				}
 			};
-
-			wsResourcesExplorerPanel
-					.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
-			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanel");
+			Log.debug("Add WorkspaceExplorerSelectNotificationListener");
+			wsResourcesExplorerPanel.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
+			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelComputaions");
+			Log.debug("Set Height to internal SCROLL 300");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
 			/*
@@ -280,18 +274,17 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			 * vResourcesExplorerContainer.add(wsResourcesExplorerPanel, new
 			 * VerticalLayoutData(1, -1, new Margins(0)));
 			 */
+			Log.debug("Define DND for Computations");
 			// DND
 
 			dnd = new MultipleDNDUpload();
-			dnd.setParameters(event.getDataMinerWorkArea().getComputations()
-					.getFolder().getId(), UPLOAD_TYPE.File);
+			dnd.setParameters(event.getDataMinerWorkArea().getComputations().getFolder().getId(), UPLOAD_TYPE.File);
 			dnd.addUniqueContainer(wsResourcesExplorerPanel);
 			WorskpaceUploadNotificationListener workspaceUploaderListener = new WorskpaceUploadNotificationListener() {
 
 				@Override
 				public void onUploadCompleted(String parentId, String itemId) {
-					Log.debug("Upload completed: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
+					Log.debug("Upload completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 
@@ -299,22 +292,18 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 				@Override
 				public void onUploadAborted(String parentId, String itemId) {
-					Log.debug("Upload Aborted: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
+					Log.debug("Upload Aborted: [parentID: " + parentId + ", itemId: " + itemId + "]");
 				}
 
 				@Override
-				public void onError(String parentId, String itemId,
-						Throwable throwable) {
-					Log.debug("Upload Error: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
+				public void onError(String parentId, String itemId, Throwable throwable) {
+					Log.debug("Upload Error: [parentID: " + parentId + ", itemId: " + itemId + "]");
 					throwable.printStackTrace();
 				}
 
 				@Override
 				public void onOverwriteCompleted(String parentId, String itemId) {
-					Log.debug("Upload Override Completed: [parentID: "
-							+ parentId + ", itemId: " + itemId + "]");
+					Log.debug("Upload Override Completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 				}
@@ -425,11 +414,9 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 				@Override
 				public void onResize(ResizeEvent event) {
-					int scrollBarHeight = event.getHeight()
-							- toolBar.getElement().getHeight(false);
+					int scrollBarHeight = event.getHeight() - toolBar.getElement().getHeight(false);
 					Log.debug("ScrollBarHeight: " + scrollBarHeight);
-					wsResourcesExplorerPanel
-							.setHeightToInternalScroll(scrollBarHeight);
+					wsResourcesExplorerPanel.setHeightToInternalScroll(scrollBarHeight);
 					forceLayout();
 
 				}
@@ -437,7 +424,7 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			forceLayout();
 
 		} catch (Throwable e) {
-			Log.error("Error opening wsResourceExplorerPanel: "+e.getLocalizedMessage(),e);
+			Log.error("Error opening wsResourceExplorerPanel: " + e.getLocalizedMessage(), e);
 			e.printStackTrace();
 		}
 	}
@@ -447,8 +434,8 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			try {
 				wsResourcesExplorerPanel.hardRefresh();
 			} catch (Exception e) {
-				Log.error("Error retrieving data: "+e.getLocalizedMessage());
-				
+				Log.error("Error retrieving data: " + e.getLocalizedMessage());
+
 			}
 		}
 	}
@@ -470,12 +457,10 @@ public class ComputationsExecutedPanel extends FramedPanel {
 	}
 
 	private void deleteItem(SelectEvent event) {
-		ItemDescription itemDescription = new ItemDescription(
-				selectedItem.getId(), selectedItem.getName(),
-				selectedItem.getOwner(), selectedItem.getPath(), selectedItem
-						.getType().name());
-		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
-				DataMinerWorkAreaElementType.Computations, itemDescription);
+		ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
+				selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
+		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(DataMinerWorkAreaElementType.Computations,
+				itemDescription);
 		EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
 		Log.debug("Fired: " + deleteItemEvent);
 	}
@@ -483,13 +468,10 @@ public class ComputationsExecutedPanel extends FramedPanel {
 	private void showComputation() {
 		if (selectedItem != null) {
 
-			final ItemDescription itemDescription = new ItemDescription(
-					selectedItem.getId(), selectedItem.getName(),
-					selectedItem.getOwner(), selectedItem.getPath(),
-					selectedItem.getType().name());
+			final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
 
-			ComputationDataRequestEvent event = new ComputationDataRequestEvent(
-					itemDescription);
+			ComputationDataRequestEvent event = new ComputationDataRequestEvent(itemDescription);
 			EventBusProvider.INSTANCE.fireEvent(event);
 
 		} else {
@@ -503,53 +485,41 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			if (selectedItem.isFolder()) {
 				StringBuilder actionUrl = new StringBuilder();
 				actionUrl.append(GWT.getModuleBaseURL());
-				actionUrl
-						.append(Constants.DOWNLOAD_FOLDER_SERVLET
-								+ "?"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER
-								+ "="
-								+ selectedItem.getId()
-								+ "&"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER
-								+ "=" + selectedItem.getName() + "&"
-								+ Constants.CURR_GROUP_ID + "="
-								+ GCubeClientContext.getCurrentContextId());
+				actionUrl.append(Constants.DOWNLOAD_FOLDER_SERVLET + "?"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER + "=" + selectedItem.getId() + "&"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER + "=" + selectedItem.getName() + "&"
+						+ Constants.CURR_GROUP_ID + "=" + GCubeClientContext.getCurrentContextId());
 
 				Log.debug("Retrieved link: " + actionUrl);
 				Window.open(actionUrl.toString(), selectedItem.getName(), "");
 
 			} else {
 
-				final ItemDescription itemDescription = new ItemDescription(
-						selectedItem.getId(), selectedItem.getName(),
-						selectedItem.getOwner(), selectedItem.getPath(),
+				final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(),
+						selectedItem.getName(), selectedItem.getOwner(), selectedItem.getPath(),
 						selectedItem.getType().name());
 
-				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(
-						itemDescription, new AsyncCallback<String>() {
+				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(itemDescription, new AsyncCallback<String>() {
 
-							@Override
-							public void onFailure(Throwable caught) {
-								if (caught instanceof SessionExpiredServiceException) {
-									EventBusProvider.INSTANCE
-											.fireEvent(new SessionExpiredEvent());
-								} else {
-									Log.error("Error open file: "
-											+ caught.getLocalizedMessage());
-									UtilsGXT3.alert("Error",
-											caught.getLocalizedMessage());
-								}
-								caught.printStackTrace();
+					@Override
+					public void onFailure(Throwable caught) {
+						if (caught instanceof SessionExpiredServiceException) {
+							EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
+						} else {
+							Log.error("Error open file: " + caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error", caught.getLocalizedMessage());
+						}
+						caught.printStackTrace();
 
-							}
+					}
 
-							@Override
-							public void onSuccess(String link) {
-								Log.debug("Retrieved link: " + link);
-								Window.open(link, itemDescription.getName(), "");
-							}
+					@Override
+					public void onSuccess(String link) {
+						Log.debug("Retrieved link: " + link);
+						Window.open(link, itemDescription.getName(), "");
+					}
 
-						});
+				});
 			}
 		} else {
 			UtilsGXT3.info("Attention", "Select a file!");
@@ -559,10 +529,8 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void cancelComputation() {
 		if (selectedItem != null) {
-			ItemDescription itemDescription = new ItemDescription(
-					selectedItem.getId(), selectedItem.getName(),
-					selectedItem.getOwner(), selectedItem.getPath(),
-					selectedItem.getType().name());
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
 			CancelExecutionFromComputationsRequestEvent cancelComputationEvent = new CancelExecutionFromComputationsRequestEvent(
 					itemDescription);
 			EventBusProvider.INSTANCE.fireEvent(cancelComputationEvent);
@@ -574,10 +542,8 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void resubmitComputation() {
 		if (selectedItem != null) {
-			ItemDescription itemDescription = new ItemDescription(
-					selectedItem.getId(), selectedItem.getName(),
-					selectedItem.getOwner(), selectedItem.getPath(),
-					selectedItem.getType().name());
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
 			ResubmitComputationExecutionRequestEvent resubmitComputationEvent = new ResubmitComputationExecutionRequestEvent(
 					itemDescription);
 			EventBusProvider.INSTANCE.fireEvent(resubmitComputationEvent);

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

@@ -190,6 +190,7 @@ public class InputDataSetsPanel extends FramedPanel {
 	}
 
 	private void create(DataMinerWorkAreaEvent event) {
+		Log.debug("Create InputDataSetsPanel");
 		try {
 
 			if (event == null || event.getDataMinerWorkArea() == null
@@ -213,6 +214,10 @@ public class InputDataSetsPanel extends FramedPanel {
 			Map<String, String> map = new HashMap<String, String>();
 			filterCriteria.setRequiredProperties(map);
 
+			Log.debug("Create wsResourcesExplorerPanel for Input: ["
+					+ event.getDataMinerWorkArea().getInputDataSets().getFolder().getId() + ", false, "
+					+ showProperties+", "+ filterCriteria + ", true, " + DISPLAY_FIELD.CREATION_DATE + "]");
+
 			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanelPaginated(
 					event.getDataMinerWorkArea().getInputDataSets().getFolder().getId(), false, showProperties,
 					filterCriteria, true, DISPLAY_FIELD.CREATION_DATE);
@@ -242,9 +247,11 @@ public class InputDataSetsPanel extends FramedPanel {
 			};
 
 			wsResourcesExplorerPanel.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
-			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanel");
+			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelForInput");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
+			Log.debug("Define DND for InputDataSetsPanel");
+
 			// DND
 
 			dnd = new MultipleDNDUpload();
@@ -350,7 +357,7 @@ public class InputDataSetsPanel extends FramedPanel {
 			forceLayout();
 
 		} catch (Throwable e) {
-			Log.error("Error opening wsResourceExplorerPanel: "+e.getLocalizedMessage(),e);
+			Log.error("Error opening wsResourceExplorerPanel: " + e.getLocalizedMessage(), e);
 			e.printStackTrace();
 		}
 	}
@@ -384,12 +391,18 @@ public class InputDataSetsPanel extends FramedPanel {
 	}
 
 	private void deleteItem(SelectEvent event) {
-		ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
-				selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
-		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(DataMinerWorkAreaElementType.InputDataSets,
-				itemDescription);
-		EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
-		Log.debug("Fired: " + deleteItemEvent);
+		Log.debug("Selected Item: " + selectedItem);
+		if (selectedItem != null) {
+
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
+			DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
+					DataMinerWorkAreaElementType.InputDataSets, itemDescription);
+			EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
+			Log.debug("Fired: " + deleteItemEvent);
+		} else {
+			UtilsGXT3.info("Attention", "Select a item!");
+		}
 	}
 
 	private void downloadFile() {

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

@@ -86,15 +86,14 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 	private void bindToEvents() {
 
-		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE,
-				new UIStateEvent.UIStateEventHandler() {
+		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE, new UIStateEvent.UIStateEventHandler() {
 
-					@Override
-					public void onChange(UIStateEvent event) {
-						manageStateEvents(event);
+			@Override
+			public void onChange(UIStateEvent event) {
+				manageStateEvents(event);
 
-					}
-				});
+			}
+		});
 
 		EventBusProvider.INSTANCE.addHandler(DataMinerWorkAreaEvent.TYPE,
 				new DataMinerWorkAreaEvent.DataMinerWorkAreaEventHandler() {
@@ -107,19 +106,16 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 				});
 
-		EventBusProvider.INSTANCE
-				.addHandler(
-						RefreshDataMinerWorkAreaEvent.TYPE,
-						new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
+		EventBusProvider.INSTANCE.addHandler(RefreshDataMinerWorkAreaEvent.TYPE,
+				new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
 
-							@Override
-							public void onRefresh(
-									RefreshDataMinerWorkAreaEvent event) {
-								manageRefreshDataMinerWorkAreaEvents(event);
+					@Override
+					public void onRefresh(RefreshDataMinerWorkAreaEvent event) {
+						manageRefreshDataMinerWorkAreaEvents(event);
 
-							}
+					}
 
-						});
+				});
 
 	}
 
@@ -142,8 +138,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 	}
 
 	private void manageDataMinerWorkAreaEvents(DataMinerWorkAreaEvent event) {
-		Log.debug("OutputDataSetsPanel recieved DataMinerWorkAreaEvent: "
-				+ event);
+		Log.debug("OutputDataSetsPanel recieved DataMinerWorkAreaEvent: " + event);
 		if (event == null) {
 			Log.error("DataMinerWorkAreaEvent");
 			return;
@@ -172,10 +167,8 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 	}
 
-	private void manageRefreshDataMinerWorkAreaEvents(
-			RefreshDataMinerWorkAreaEvent event) {
-		Log.debug("OutputDataSetsPanel recieved RefreshDataMinerWorkAreaEvent: "
-				+ event);
+	private void manageRefreshDataMinerWorkAreaEvents(RefreshDataMinerWorkAreaEvent event) {
+		Log.debug("OutputDataSetsPanel recieved RefreshDataMinerWorkAreaEvent: " + event);
 		if (event == null) {
 			Log.error("RefreshDataMinerWorkAreaEvent");
 			return;
@@ -195,17 +188,14 @@ public class OutputDataSetsPanel extends FramedPanel {
 	}
 
 	private void create(DataMinerWorkAreaEvent event) {
+		Log.debug("Create OutputDataSetsPanel");
 		try {
 
-			if (event == null
-					|| event.getDataMinerWorkArea() == null
+			if (event == null || event.getDataMinerWorkArea() == null
 					|| event.getDataMinerWorkArea().getOutputDataSets() == null
-					|| event.getDataMinerWorkArea().getOutputDataSets()
-							.getFolder() == null
-					|| event.getDataMinerWorkArea().getOutputDataSets()
-							.getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getOutputDataSets()
-							.getFolder().getId().isEmpty()) {
+					|| event.getDataMinerWorkArea().getOutputDataSets().getFolder() == null
+					|| event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId() == null
+					|| event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId().isEmpty()) {
 				if (v != null) {
 					remove(v);
 					forceLayout();
@@ -215,17 +205,18 @@ public class OutputDataSetsPanel extends FramedPanel {
 			}
 
 			List<String> showProperties = new ArrayList<String>();
-			for (DataSpacePropertiesType dataSpaceProperties : DataSpacePropertiesType
-					.values()) {
+			for (DataSpacePropertiesType dataSpaceProperties : DataSpacePropertiesType.values()) {
 				showProperties.add(dataSpaceProperties.getLabel());
 			}
 			FilterCriteria filterCriteria = new FilterCriteria();
 			Map<String, String> map = new HashMap<String, String>();
 			filterCriteria.setRequiredProperties(map);
 
+			Log.debug("Create wsResourcesExplorerPanel for Output: ["
+					+ event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId() + ", false, "
+					+ showProperties + ", " + filterCriteria + ", true, " + DISPLAY_FIELD.CREATION_DATE + "]");
 			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanelPaginated(
-					event.getDataMinerWorkArea().getOutputDataSets()
-							.getFolder().getId(), false, showProperties,
+					event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId(), false, showProperties,
 					filterCriteria, true, DISPLAY_FIELD.CREATION_DATE);
 
 			WorskpaceExplorerSelectNotificationListener wsResourceExplorerListener = new WorskpaceExplorerSelectNotificationListener() {
@@ -253,23 +244,22 @@ public class OutputDataSetsPanel extends FramedPanel {
 				}
 			};
 
-			wsResourcesExplorerPanel
-					.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
-			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanel");
+			wsResourcesExplorerPanel.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
+			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelForOutput");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
+			Log.debug("Define DND for InputDataSetsPanel");
+
 			// DND
 
 			dnd = new MultipleDNDUpload();
-			dnd.setParameters(event.getDataMinerWorkArea().getOutputDataSets()
-					.getFolder().getId(), UPLOAD_TYPE.File);
+			dnd.setParameters(event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId(), UPLOAD_TYPE.File);
 			dnd.addUniqueContainer(wsResourcesExplorerPanel);
 			WorskpaceUploadNotificationListener workspaceUploaderListener = new WorskpaceUploadNotificationListener() {
 
 				@Override
 				public void onUploadCompleted(String parentId, String itemId) {
-					Log.debug("Upload completed: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
+					Log.debug("Upload completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 
@@ -277,22 +267,18 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 				@Override
 				public void onUploadAborted(String parentId, String itemId) {
-					Log.debug("Upload Aborted: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
+					Log.debug("Upload Aborted: [parentID: " + parentId + ", itemId: " + itemId + "]");
 				}
 
 				@Override
-				public void onError(String parentId, String itemId,
-						Throwable throwable) {
-					Log.debug("Upload Error: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
+				public void onError(String parentId, String itemId, Throwable throwable) {
+					Log.debug("Upload Error: [parentID: " + parentId + ", itemId: " + itemId + "]");
 					throwable.printStackTrace();
 				}
 
 				@Override
 				public void onOverwriteCompleted(String parentId, String itemId) {
-					Log.debug("Upload Override Completed: [parentID: "
-							+ parentId + ", itemId: " + itemId + "]");
+					Log.debug("Upload Override Completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 				}
@@ -358,11 +344,9 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 				@Override
 				public void onResize(ResizeEvent event) {
-					int scrollBarHeight = event.getHeight()
-							- toolBar.getElement().getHeight(false);
+					int scrollBarHeight = event.getHeight() - toolBar.getElement().getHeight(false);
 					Log.debug("ScrollBarHeight: " + scrollBarHeight);
-					wsResourcesExplorerPanel
-							.setHeightToInternalScroll(scrollBarHeight);
+					wsResourcesExplorerPanel.setHeightToInternalScroll(scrollBarHeight);
 					forceLayout();
 
 				}
@@ -370,7 +354,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 			forceLayout();
 
 		} catch (Throwable e) {
-			Log.error("Error opening wsResourceExplorerPanel: "+e.getLocalizedMessage(),e);
+			Log.error("Error opening wsResourceExplorerPanel: " + e.getLocalizedMessage(), e);
 			e.printStackTrace();
 		}
 	}
@@ -398,21 +382,24 @@ public class OutputDataSetsPanel extends FramedPanel {
 			}
 
 		} catch (Throwable e) {
-			Log.error("Error in OutputDataSetsPanel: "
-					+ e.getLocalizedMessage());
+			Log.error("Error in OutputDataSetsPanel: " + e.getLocalizedMessage());
 			e.printStackTrace();
 		}
 	}
 
 	private void deleteItem(SelectEvent event) {
-		ItemDescription itemDescription = new ItemDescription(
-				selectedItem.getId(), selectedItem.getName(),
-				selectedItem.getOwner(), selectedItem.getPath(), selectedItem
-						.getType().name());
-		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
-				DataMinerWorkAreaElementType.OutputDataSets, itemDescription);
-		EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
-		Log.debug("Fired: " + deleteItemEvent);
+		Log.debug("Selected Item: " + selectedItem);
+		if (selectedItem != null) {
+
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
+			DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
+					DataMinerWorkAreaElementType.OutputDataSets, itemDescription);
+			EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
+			Log.debug("Fired: " + deleteItemEvent);
+		} else {
+			UtilsGXT3.info("Attention", "Select a item!");
+		}
 	}
 
 	private void downloadFile() {
@@ -420,51 +407,39 @@ public class OutputDataSetsPanel extends FramedPanel {
 			if (selectedItem.isFolder()) {
 				StringBuilder actionUrl = new StringBuilder();
 				actionUrl.append(GWT.getModuleBaseURL());
-				actionUrl
-						.append(Constants.DOWNLOAD_FOLDER_SERVLET
-								+ "?"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER
-								+ "="
-								+ selectedItem.getId()
-								+ "&"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER
-								+ "=" + selectedItem.getName() + "&"
-								+ Constants.CURR_GROUP_ID + "="
-								+ GCubeClientContext.getCurrentContextId());
+				actionUrl.append(Constants.DOWNLOAD_FOLDER_SERVLET + "?"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER + "=" + selectedItem.getId() + "&"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER + "=" + selectedItem.getName() + "&"
+						+ Constants.CURR_GROUP_ID + "=" + GCubeClientContext.getCurrentContextId());
 
 				Log.debug("Retrieved link: " + actionUrl);
 				Window.open(actionUrl.toString(), selectedItem.getName(), "");
 			} else {
-				final ItemDescription itemDescription = new ItemDescription(
-						selectedItem.getId(), selectedItem.getName(),
-						selectedItem.getOwner(), selectedItem.getPath(),
+				final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(),
+						selectedItem.getName(), selectedItem.getOwner(), selectedItem.getPath(),
 						selectedItem.getType().name());
 
-				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(
-						itemDescription, new AsyncCallback<String>() {
+				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(itemDescription, new AsyncCallback<String>() {
 
-							@Override
-							public void onFailure(Throwable caught) {
-								if (caught instanceof SessionExpiredServiceException) {
-									EventBusProvider.INSTANCE
-											.fireEvent(new SessionExpiredEvent());
-								} else {
-									Log.error("Error open file: "
-											+ caught.getLocalizedMessage());
-									UtilsGXT3.alert("Error",
-											caught.getLocalizedMessage());
-								}
-								caught.printStackTrace();
+					@Override
+					public void onFailure(Throwable caught) {
+						if (caught instanceof SessionExpiredServiceException) {
+							EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
+						} else {
+							Log.error("Error open file: " + caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error", caught.getLocalizedMessage());
+						}
+						caught.printStackTrace();
 
-							}
+					}
 
-							@Override
-							public void onSuccess(String link) {
-								Log.debug("Retrieved link: " + link);
-								Window.open(link, itemDescription.getName(), "");
-							}
+					@Override
+					public void onSuccess(String link) {
+						Log.debug("Retrieved link: " + link);
+						Window.open(link, itemDescription.getName(), "");
+					}
 
-						});
+				});
 			}
 
 		} else {

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

@@ -31,17 +31,17 @@
 	
 	<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" 
 		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="log_SystemLogger" value="DISABLED" />  -->
 
 
 

src/main/java/org/gcube/portlets/user/dataminermanager/shared/Constants.java

@@ -7,7 +7,7 @@ package org.gcube.portlets.user.dataminermanager.shared;
  *
  */
 public class Constants {
-	public static final boolean DEBUG_MODE = false;
+	public static final boolean DEBUG_MODE = true;
 	public static final boolean TEST_ENABLE = false;
 
 	public static final String APPLICATION_ID = "org.gcube.portlets.user.dataminermanager.portlet.DataMinerManager";

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

@@ -31,17 +31,18 @@
 
 	<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" 
 		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" />
-
+	 -->
 
 	<source path='client' />
 	<source path='shared' />