ref 11720: TDM - Update to StorageHUB

https://support.d4science.org/issues/11879

Updated to StorageHub 

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/widgets/data-miner-manager-widget@169473 82a268e6-3cf1-43bd-a215-b396298e98cf

.classpath

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" output="target/data-miner-manager-widget-1.1.0-SNAPSHOT/WEB-INF/classes" path="src/main/java">
+	<classpathentry kind="src" output="target/data-miner-manager-widget-1.2.0-SNAPSHOT/WEB-INF/classes" path="src/main/java">
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry excluding="**" kind="src" output="target/data-miner-manager-widget-1.1.0-SNAPSHOT/WEB-INF/classes" path="src/main/resources">
+	<classpathentry excluding="**" kind="src" output="target/data-miner-manager-widget-1.2.0-SNAPSHOT/WEB-INF/classes" path="src/main/resources">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
@@ -33,5 +33,5 @@
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="output" path="target/data-miner-manager-widget-1.1.0-SNAPSHOT/WEB-INF/classes"/>
+	<classpathentry kind="output" path="target/data-miner-manager-widget-1.2.0-SNAPSHOT/WEB-INF/classes"/>
 </classpath>

distro/changelog.xml

@@ -1,4 +1,9 @@
 <ReleaseNotes>
+	<Changeset component="org.gcube.portlets.widgets.data-miner-manager-widget.1-2-0"
+		date="2018-07-01">
+		<Change>Updated to support StorageHUB[ticket #11879]</Change>
+		<Change>Added support to netcdf files</Change>
+	</Changeset>
 	<Changeset component="org.gcube.portlets.widgets.data-miner-manager-widget.1-1-0"
 		date="2017-06-12">
 		<Change>Support Java 8 compatibility [ticket #8471]</Change>

pom.xml

@@ -12,7 +12,7 @@
 
 	<groupId>org.gcube.portlets.widgets</groupId>
 	<artifactId>data-miner-manager-widget</artifactId>
-	<version>1.1.0-SNAPSHOT</version>
+	<version>1.2.0-SNAPSHOT</version>
 
 	<name>data-miner-manager-widget</name>
 	<description>data-miner-manager-widget offers a unique access to perform data mining and statistical operations on heterogeneous data</description>
@@ -97,6 +97,14 @@
 					<scope>runtime</scope>
 				</dependency>
 
+				<!-- StorageHub -->
+				<dependency>
+					<groupId>org.gcube.common</groupId>
+					<artifactId>storagehub-client-library</artifactId>
+					<scope>runtime</scope>
+				</dependency>
+
+
 				<!-- Home Library -->
 				<dependency>
 					<groupId>org.gcube.common</groupId>
@@ -221,6 +229,14 @@
 			<scope>provided</scope>
 		</dependency>
 
+		<!-- StorageHub -->
+		<dependency>
+			<groupId>org.gcube.common</groupId>
+			<artifactId>storagehub-client-library</artifactId>
+			<scope>compile</scope>
+		</dependency>
+
+
 		<!-- Home Library -->
 		<dependency>
 			<groupId>org.gcube.common</groupId>
@@ -274,13 +290,11 @@
 			<version>[1.2.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
 		</dependency>
 
-
-
 		<!-- Workspace Explorer -->
 		<dependency>
 			<groupId>org.gcube.portlets.widgets</groupId>
 			<artifactId>workspace-explorer</artifactId>
-			<version>[1.4.0-SNAPSHOT, 2.0.0-SNAPSHOT)</version>
+			<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version>
 		</dependency>
 
 		<!-- Workspace Uploader -->
@@ -297,6 +311,14 @@
 			<version>[1.0.0-SNAPSHOT,2.0.0-SNAPSHOT)</version>
 		</dependency>
 
+		<!-- NetCDF Basic Widget -->
+		<dependency>
+			<groupId>org.gcube.portlets.widgets</groupId>
+			<artifactId>netcdf-basic-widgets</artifactId>
+			<version>[1.0.0-SNAPSHOT,2.0.0-SNAPSHOT)</version>
+		</dependency>
+
+
 		<!-- DataMinerManagerCL -->
 		<dependency>
 			<groupId>org.gcube.data.analysis</groupId>
@@ -316,13 +338,13 @@
 			<artifactId>slf4j-api</artifactId>
 			<scope>provided</scope>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-log4j12</artifactId>
 			<scope>provided</scope>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/computations/ComputationValueFilePanel.java

@@ -2,8 +2,13 @@ package org.gcube.portlets.widgets.dataminermanagerwidget.client.computations;
 
 import org.gcube.data.analysis.dataminermanagercl.shared.data.computations.ComputationValueFile;
 import org.gcube.portlets.widgets.dataminermanagerwidget.client.DataMinerManagerPanel;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.event.SelectVariableEvent;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.event.SelectVariableEvent.SelectVariableEventHandler;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.widgets.NetCDFPreviewDialog;
 
+import com.google.gwt.core.client.GWT;
 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
+import com.sencha.gxt.core.client.dom.XDOM;
 import com.sencha.gxt.core.client.util.Margins;
 import com.sencha.gxt.widget.core.client.button.TextButton;
 import com.sencha.gxt.widget.core.client.container.HtmlLayoutContainer;
@@ -58,9 +63,47 @@ public class ComputationValueFilePanel extends SimpleContainer {
 
 			}
 		});
+		
+		TextButton netcdfButton = new TextButton("");
+		netcdfButton.setIcon(DataMinerManagerPanel.resources.netcdf());
+		netcdfButton.addSelectHandler(new SelectEvent.SelectHandler() {
+
+			@Override
+			public void onSelect(SelectEvent event) {
+				showNetCDFFile();
+			}
+		});
+
 
 		lc.add(downloadBtn, new VerticalLayoutData(-1, -1, new Margins(0)));
+		if (computationValueFile.isNetcdf()) {
+			lc.add(netcdfButton, new VerticalLayoutData(-1, -1, new Margins(0)));
+		}
 		add(lc);
 	}
+	
+	
+	private void showNetCDFFile() {
+		if (computationValueFile != null && computationValueFile.getValue() != null && !computationValueFile.getValue().isEmpty()
+				&& computationValueFile.isNetcdf()) {
+			GWT.log("NetcdfBasicWidgetsManager");
+
+			// Example
+			SelectVariableEventHandler handler = new SelectVariableEventHandler() {
+
+				@Override
+				public void onResponse(SelectVariableEvent event) {
+					GWT.log("SelectVariable Response: " + event);
+
+				}
+			};
+
+			NetCDFPreviewDialog netcdfDialog = new NetCDFPreviewDialog(computationValueFile.getValue());
+			netcdfDialog.addSelectVariableEventHandler(handler);
+			netcdfDialog.setZIndex(XDOM.getTopZIndex());
+
+		}
+	}
+
 
 }

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/computations/ComputationsExecutedPanel.java

@@ -24,7 +24,7 @@ import org.gcube.portlets.widgets.dataminermanagerwidget.shared.workspace.ItemDe
 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;
-import org.gcube.portlets.widgets.wsexplorer.client.explore.WorkspaceResourcesExplorerPanel;
+import org.gcube.portlets.widgets.wsexplorer.client.explore.WorkspaceResourcesExplorerPanelPaginated;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
@@ -58,12 +58,13 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private Item selectedItem;
 	private MultipleDNDUpload dnd;
-	private WorkspaceResourcesExplorerPanel wsResourcesExplorerPanel;
+	private WorkspaceResourcesExplorerPanelPaginated wsResourcesExplorerPanel;
+	// private WorkspaceResourcesExplorerPanel wsResourcesExplorerPanel;
 	private TextButton btnShow;
 	private TextButton btnDownload;
 	private TextButton btnDelete;
 	private TextButton btnRefresh;
-	//private TextButton btnResubmit;
+	// private TextButton btnResubmit;
 	private TextButton btnCancel;
 	private VerticalLayoutContainer v;
 
@@ -92,15 +93,14 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void bindToEvents() {
 
-		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE,
+		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE, new UIStateEvent.UIStateEventHandler() {
-				new UIStateEvent.UIStateEventHandler() {
 
-					@Override
+			@Override
-					public void onChange(UIStateEvent event) {
+			public void onChange(UIStateEvent event) {
-						manageStateEvents(event);
+				manageStateEvents(event);
 
-					}
+			}
-				});
+		});
 
 		EventBusProvider.INSTANCE.addHandler(DataMinerWorkAreaEvent.TYPE,
 				new DataMinerWorkAreaEvent.DataMinerWorkAreaEventHandler() {
@@ -113,19 +113,16 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 				});
 
-		EventBusProvider.INSTANCE
+		EventBusProvider.INSTANCE.addHandler(RefreshDataMinerWorkAreaEvent.TYPE,
-				.addHandler(
+				new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
-						RefreshDataMinerWorkAreaEvent.TYPE,
-						new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
 
-							@Override
+					@Override
-							public void onRefresh(
+					public void onRefresh(RefreshDataMinerWorkAreaEvent event) {
-									RefreshDataMinerWorkAreaEvent event) {
+						manageRefreshDataMinerWorkAreaEvents(event);
-								manageRefreshDataMinerWorkAreaEvents(event);
 
-							}
+					}
 
-						});
+				});
 
 	}
 
@@ -150,8 +147,7 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void manageDataMinerWorkAreaEvents(DataMinerWorkAreaEvent event) {
 
-		Log.debug("ComputationsExecutedPanel recieved DataMinerWorkAreaEvent: "
+		Log.debug("ComputationsExecutedPanel recieved DataMinerWorkAreaEvent: " + event);
-				+ event);
 		if (event == null) {
 			Log.error("DataMinerWorkAreaEvent null");
 			return;
@@ -181,10 +177,8 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	}
 
-	private void manageRefreshDataMinerWorkAreaEvents(
+	private void manageRefreshDataMinerWorkAreaEvents(RefreshDataMinerWorkAreaEvent event) {
-			RefreshDataMinerWorkAreaEvent event) {
+		Log.debug("ComputationsExecutedPanel recieved RefreshDataMinerWorkAreaEvent: " + event);
-		Log.debug("ComputationsExecutedPanel recieved RefreshDataMinerWorkAreaEvent: "
-				+ event);
 		if (event == null) {
 			Log.error("RefreshDataMinerWorkAreaEvent null");
 			return;
@@ -204,17 +198,14 @@ public class ComputationsExecutedPanel extends FramedPanel {
 	}
 
 	private void create(DataMinerWorkAreaEvent event) {
+		Log.debug("Create ComputationsExecutedPanel");
 		try {
 
-			if (event == null
+			if (event == null || event.getDataMinerWorkArea() == null
-					|| event.getDataMinerWorkArea() == null
 					|| event.getDataMinerWorkArea().getComputations() == null
-					|| event.getDataMinerWorkArea().getComputations()
+					|| event.getDataMinerWorkArea().getComputations().getFolder() == null
-							.getFolder() == null
+					|| event.getDataMinerWorkArea().getComputations().getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getComputations()
+					|| event.getDataMinerWorkArea().getComputations().getFolder().getId().isEmpty()) {
-							.getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getComputations()
-							.getFolder().getId().isEmpty()) {
 				if (v != null) {
 					remove(v);
 					forceLayout();
@@ -224,18 +215,27 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			}
 
 			List<String> showProperties = new ArrayList<String>();
-			for (ComputationsPropertiesType computationsProperties : ComputationsPropertiesType
+			for (ComputationsPropertiesType computationsProperties : ComputationsPropertiesType.values()) {
-					.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()
+			 * wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanel(
-							.getId(), false, showProperties, filterCriteria,
+			 * event.getDataMinerWorkArea().getComputations().getFolder()
-					true, DISPLAY_FIELD.CREATION_DATE);
+			 * .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) {
@@ -260,10 +260,10 @@ public class ComputationsExecutedPanel extends FramedPanel {
 					selectedItem = null;
 				}
 			};
-
+			Log.debug("Add WorkspaceExplorerSelectNotificationListener");
-			wsResourcesExplorerPanel
+			wsResourcesExplorerPanel.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
-					.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
+			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelComputaions");
-			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanel");
+			Log.debug("Set Height to internal SCROLL 300");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
 			/*
@@ -273,18 +273,17 @@ 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()
+			dnd.setParameters(event.getDataMinerWorkArea().getComputations().getFolder().getId(), UPLOAD_TYPE.File);
-					.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
+					Log.debug("Upload completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 
@@ -292,22 +291,18 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 				@Override
 				public void onUploadAborted(String parentId, String itemId) {
-					Log.debug("Upload Aborted: [parentID: " + parentId
+					Log.debug("Upload Aborted: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ ", itemId: " + itemId + "]");
 				}
 
 				@Override
-				public void onError(String parentId, String itemId,
+				public void onError(String parentId, String itemId, Throwable throwable) {
-						Throwable throwable) {
+					Log.debug("Upload Error: [parentID: " + parentId + ", itemId: " + itemId + "]");
-					Log.debug("Upload Error: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
 					throwable.printStackTrace();
 				}
 
 				@Override
 				public void onOverwriteCompleted(String parentId, String itemId) {
-					Log.debug("Upload Override Completed: [parentID: "
+					Log.debug("Upload Override Completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 				}
@@ -372,19 +367,19 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 			});
 
-			/*btnResubmit = new TextButton("Resubmit");
+			/*
-			btnResubmit.setIcon(DataMinerManagerPanel.resources.resubmit());
+			 * btnResubmit = new TextButton("Resubmit");
-			btnResubmit.setScale(ButtonScale.SMALL);
+			 * btnResubmit.setIcon(DataMinerManagerPanel.resources.resubmit());
-			btnResubmit.setIconAlign(IconAlign.LEFT);
+			 * btnResubmit.setScale(ButtonScale.SMALL);
-			btnResubmit.setToolTip("Resubmit");
+			 * btnResubmit.setIconAlign(IconAlign.LEFT);
-			btnResubmit.addSelectHandler(new SelectHandler() {
+			 * btnResubmit.setToolTip("Resubmit");
-
+			 * btnResubmit.addSelectHandler(new SelectHandler() {
-				@Override
+			 * 
-				public void onSelect(SelectEvent event) {
+			 * @Override public void onSelect(SelectEvent event) {
-					resubmitComputation();
+			 * resubmitComputation(); }
-				}
+			 * 
-
+			 * });
-			});*/
+			 */
 
 			btnCancel = new TextButton("Cancel");
 			btnCancel.setIcon(DataMinerManagerPanel.resources.cancelCircle());
@@ -405,7 +400,7 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			toolBar.add(btnDownload, new BoxLayoutData(new Margins(0)));
 			toolBar.add(btnDelete, new BoxLayoutData(new Margins(0)));
 			toolBar.add(btnRefresh, new BoxLayoutData(new Margins(0)));
-			//toolBar.add(btnResubmit, new BoxLayoutData(new Margins(0)));
+			// toolBar.add(btnResubmit, new BoxLayoutData(new Margins(0)));
 			toolBar.add(btnCancel, new BoxLayoutData(new Margins(0)));
 
 			v = new VerticalLayoutContainer();
@@ -418,11 +413,9 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 				@Override
 				public void onResize(ResizeEvent event) {
-					int scrollBarHeight = event.getHeight()
+					int scrollBarHeight = event.getHeight() - toolBar.getElement().getHeight(false);
-							- toolBar.getElement().getHeight(false);
 					Log.debug("ScrollBarHeight: " + scrollBarHeight);
-					wsResourcesExplorerPanel
+					wsResourcesExplorerPanel.setHeightToInternalScroll(scrollBarHeight);
-							.setHeightToInternalScroll(scrollBarHeight);
 					forceLayout();
 
 				}
@@ -437,7 +430,13 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void refreshWSResourceExplorerPanel() {
 		if (wsResourcesExplorerPanel != null) {
-			wsResourcesExplorerPanel.refreshRootFolderView();
+			try {
+				// wsResourcesExplorerPanel.hardRefresh();
+				wsResourcesExplorerPanel.refreshRootFolderView();
+			} catch (Exception e) {
+				Log.error("Error retrieving data: " + e.getLocalizedMessage());
+
+			}
 		}
 	}
 
@@ -458,12 +457,10 @@ public class ComputationsExecutedPanel extends FramedPanel {
 	}
 
 	private void deleteItem(SelectEvent event) {
-		ItemDescription itemDescription = new ItemDescription(
+		ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
-				selectedItem.getId(), selectedItem.getName(),
+				selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
-				selectedItem.getOwner(), selectedItem.getPath(), selectedItem
+		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(DataMinerWorkAreaElementType.Computations,
-						.getType().name());
+				itemDescription);
-		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
-				DataMinerWorkAreaElementType.Computations, itemDescription);
 		EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
 		Log.debug("Fired: " + deleteItemEvent);
 	}
@@ -471,13 +468,10 @@ public class ComputationsExecutedPanel extends FramedPanel {
 	private void showComputation() {
 		if (selectedItem != null) {
 
-			final ItemDescription itemDescription = new ItemDescription(
+			final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
-					selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
-					selectedItem.getOwner(), selectedItem.getPath(),
-					selectedItem.getType().name());
 
-			ComputationDataRequestEvent event = new ComputationDataRequestEvent(
+			ComputationDataRequestEvent event = new ComputationDataRequestEvent(itemDescription);
-					itemDescription);
 			EventBusProvider.INSTANCE.fireEvent(event);
 
 		} else {
@@ -491,53 +485,41 @@ public class ComputationsExecutedPanel extends FramedPanel {
 			if (selectedItem.isFolder()) {
 				StringBuilder actionUrl = new StringBuilder();
 				actionUrl.append(GWT.getModuleBaseURL());
-				actionUrl
+				actionUrl.append(Constants.DOWNLOAD_FOLDER_SERVLET + "?"
-						.append(Constants.DOWNLOAD_FOLDER_SERVLET
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER + "=" + selectedItem.getId() + "&"
-								+ "?"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER + "=" + selectedItem.getName() + "&"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER
+						+ Constants.CURR_GROUP_ID + "=" + GCubeClientContext.getCurrentContextId());
-								+ "="
-								+ 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(
+				final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(),
-						selectedItem.getId(), selectedItem.getName(),
+						selectedItem.getName(), selectedItem.getOwner(), selectedItem.getPath(),
-						selectedItem.getOwner(), selectedItem.getPath(),
 						selectedItem.getType().name());
 
-				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(
+				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(itemDescription, new AsyncCallback<String>() {
-						itemDescription, new AsyncCallback<String>() {
 
-							@Override
+					@Override
-							public void onFailure(Throwable caught) {
+					public void onFailure(Throwable caught) {
-								if (caught instanceof SessionExpiredServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
-									EventBusProvider.INSTANCE
+							EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
-											.fireEvent(new SessionExpiredEvent());
+						} else {
-								} else {
+							Log.error("Error open file: " + caught.getLocalizedMessage());
-									Log.error("Error open file: "
+							UtilsGXT3.alert("Error", caught.getLocalizedMessage());
-											+ caught.getLocalizedMessage());
+						}
-									UtilsGXT3.alert("Error",
+						caught.printStackTrace();
-											caught.getLocalizedMessage());
-								}
-								caught.printStackTrace();
 
-							}
+					}
 
-							@Override
+					@Override
-							public void onSuccess(String link) {
+					public void onSuccess(String link) {
-								Log.debug("Retrieved link: " + link);
+						Log.debug("Retrieved link: " + link);
-								Window.open(link, itemDescription.getName(), "");
+						Window.open(link, itemDescription.getName(), "");
-							}
+					}
 
-						});
+				});
 			}
 		} else {
 			UtilsGXT3.info("Attention", "Select a file!");
@@ -547,10 +529,8 @@ public class ComputationsExecutedPanel extends FramedPanel {
 
 	private void cancelComputation() {
 		if (selectedItem != null) {
-			ItemDescription itemDescription = new ItemDescription(
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
-					selectedItem.getId(), selectedItem.getName(),
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
-					selectedItem.getOwner(), selectedItem.getPath(),
-					selectedItem.getType().name());
 			CancelExecutionFromComputationsRequestEvent cancelComputationEvent = new CancelExecutionFromComputationsRequestEvent(
 					itemDescription);
 			EventBusProvider.INSTANCE.fireEvent(cancelComputationEvent);
@@ -560,20 +540,18 @@ public class ComputationsExecutedPanel extends FramedPanel {
 		}
 	}
 
-	/*private void resubmitComputation() {
+	/*
-		if (selectedItem != null) {
+	 * private void resubmitComputation() { if (selectedItem != null) {
-			ItemDescription itemDescription = new ItemDescription(
+	 * ItemDescription itemDescription = new ItemDescription(
-					selectedItem.getId(), selectedItem.getName(),
+	 * selectedItem.getId(), selectedItem.getName(), selectedItem.getOwner(),
-					selectedItem.getOwner(), selectedItem.getPath(),
+	 * selectedItem.getPath(), selectedItem.getType().name());
-					selectedItem.getType().name());
+	 * ResubmitComputationExecutionRequestEvent resubmitComputationEvent = new
-			ResubmitComputationExecutionRequestEvent resubmitComputationEvent = new ResubmitComputationExecutionRequestEvent(
+	 * ResubmitComputationExecutionRequestEvent( itemDescription);
-					itemDescription);
+	 * EventBusProvider.INSTANCE.fireEvent(resubmitComputationEvent);
-			EventBusProvider.INSTANCE.fireEvent(resubmitComputationEvent);
+	 * Log.debug("Fired: " + resubmitComputationEvent); } else {
-			Log.debug("Fired: " + resubmitComputationEvent);
+	 * UtilsGXT3.info("Attention", "Select a computation!"); }
-		} else {
+	 * 
-			UtilsGXT3.info("Attention", "Select a computation!");
+	 * }
-		}
+	 */
-
-	}*/
 
 }

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/dataspace/InputDataSetsPanel.java

@@ -22,7 +22,7 @@ import org.gcube.portlets.widgets.dataminermanagerwidget.shared.workspace.ItemDe
 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;
-import org.gcube.portlets.widgets.wsexplorer.client.explore.WorkspaceResourcesExplorerPanel;
+import org.gcube.portlets.widgets.wsexplorer.client.explore.WorkspaceResourcesExplorerPanelPaginated;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
@@ -56,7 +56,8 @@ public class InputDataSetsPanel extends FramedPanel {
 
 	private Item selectedItem;
 	private MultipleDNDUpload dnd;
-	private WorkspaceResourcesExplorerPanel wsResourcesExplorerPanel;
+	private WorkspaceResourcesExplorerPanelPaginated wsResourcesExplorerPanel;
+	// private WorkspaceResourcesExplorerPanel wsResourcesExplorerPanel;
 	private TextButton btnDownload;
 	private TextButton btnDelete;
 	private TextButton btnRefresh;
@@ -87,15 +88,14 @@ public class InputDataSetsPanel extends FramedPanel {
 
 	private void bindToEvents() {
 
-		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE,
+		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE, new UIStateEvent.UIStateEventHandler() {
-				new UIStateEvent.UIStateEventHandler() {
 
-					@Override
+			@Override
-					public void onChange(UIStateEvent event) {
+			public void onChange(UIStateEvent event) {
-						manageStateEvents(event);
+				manageStateEvents(event);
 
-					}
+			}
-				});
+		});
 
 		EventBusProvider.INSTANCE.addHandler(DataMinerWorkAreaEvent.TYPE,
 				new DataMinerWorkAreaEvent.DataMinerWorkAreaEventHandler() {
@@ -108,19 +108,16 @@ public class InputDataSetsPanel extends FramedPanel {
 
 				});
 
-		EventBusProvider.INSTANCE
+		EventBusProvider.INSTANCE.addHandler(RefreshDataMinerWorkAreaEvent.TYPE,
-				.addHandler(
+				new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
-						RefreshDataMinerWorkAreaEvent.TYPE,
-						new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
 
-							@Override
+					@Override
-							public void onRefresh(
+					public void onRefresh(RefreshDataMinerWorkAreaEvent event) {
-									RefreshDataMinerWorkAreaEvent event) {
+						manageRefreshDataMinerWorkAreaEvents(event);
-								manageRefreshDataMinerWorkAreaEvents(event);
 
-							}
+					}
 
-						});
+				});
 
 	}
 
@@ -143,8 +140,7 @@ public class InputDataSetsPanel extends FramedPanel {
 	}
 
 	private void manageDataMinerWorkAreaEvents(DataMinerWorkAreaEvent event) {
-		Log.debug("InputDataSetsPanel recieved DataMinerWorkAreaEvent: "
+		Log.debug("InputDataSetsPanel recieved DataMinerWorkAreaEvent: " + event);
-				+ event);
 		if (event == null) {
 			Log.error("DataMinerWorkAreaEvent");
 			return;
@@ -173,10 +169,8 @@ public class InputDataSetsPanel extends FramedPanel {
 
 	}
 
-	private void manageRefreshDataMinerWorkAreaEvents(
+	private void manageRefreshDataMinerWorkAreaEvents(RefreshDataMinerWorkAreaEvent event) {
-			RefreshDataMinerWorkAreaEvent event) {
+		Log.debug("InputDataSetsPanel recieved RefreshDataMinerWorkAreaEvent: " + event);
-		Log.debug("InputDataSetsPanel recieved RefreshDataMinerWorkAreaEvent: "
-				+ event);
 		if (event == null) {
 			Log.error("RefreshDataMinerWorkAreaEvent");
 			return;
@@ -197,17 +191,14 @@ public class InputDataSetsPanel extends FramedPanel {
 	}
 
 	private void create(DataMinerWorkAreaEvent event) {
+		Log.debug("Create InputDataSetsPanel");
 		try {
 
-			if (event == null
+			if (event == null || event.getDataMinerWorkArea() == null
-					|| event.getDataMinerWorkArea() == null
 					|| event.getDataMinerWorkArea().getInputDataSets() == null
-					|| event.getDataMinerWorkArea().getInputDataSets()
+					|| event.getDataMinerWorkArea().getInputDataSets().getFolder() == null
-							.getFolder() == null
+					|| event.getDataMinerWorkArea().getInputDataSets().getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getInputDataSets()
+					|| event.getDataMinerWorkArea().getInputDataSets().getFolder().getId().isEmpty()) {
-							.getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getInputDataSets()
-							.getFolder().getId().isEmpty()) {
 				if (v != null) {
 					remove(v);
 					forceLayout();
@@ -217,18 +208,20 @@ public class InputDataSetsPanel extends FramedPanel {
 			}
 
 			List<String> showProperties = new ArrayList<String>();
-			for (DataSpacePropertiesType dataSpaceProperties : DataSpacePropertiesType
+			for (DataSpacePropertiesType dataSpaceProperties : DataSpacePropertiesType.values()) {
-					.values()) {
 				showProperties.add(dataSpaceProperties.getLabel());
 			}
 			FilterCriteria filterCriteria = new FilterCriteria();
 			Map<String, String> map = new HashMap<String, String>();
 			filterCriteria.setRequiredProperties(map);
 
-			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanel(
+			Log.debug("Create wsResourcesExplorerPanel for Input: ["
-					event.getDataMinerWorkArea().getInputDataSets().getFolder()
+					+ event.getDataMinerWorkArea().getInputDataSets().getFolder().getId() + ", false, " + showProperties
-							.getId(), false, showProperties, filterCriteria,
+					+ ", " + filterCriteria + ", true, " + DISPLAY_FIELD.CREATION_DATE + "]");
-					true, DISPLAY_FIELD.CREATION_DATE);
+
+			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanelPaginated(
+					event.getDataMinerWorkArea().getInputDataSets().getFolder().getId(), false, showProperties,
+					filterCriteria, true, DISPLAY_FIELD.CREATION_DATE);
 			WorskpaceExplorerSelectNotificationListener wsResourceExplorerListener = new WorskpaceExplorerSelectNotificationListener() {
 				@Override
 				public void onSelectedItem(Item item) {
@@ -254,23 +247,22 @@ public class InputDataSetsPanel extends FramedPanel {
 				}
 			};
 
-			wsResourcesExplorerPanel
+			wsResourcesExplorerPanel.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
-					.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
+			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelForInput");
-			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanel");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
+			Log.debug("Define DND for InputDataSetsPanel");
+
 			// DND
 
 			dnd = new MultipleDNDUpload();
-			dnd.setParameters(event.getDataMinerWorkArea().getInputDataSets()
+			dnd.setParameters(event.getDataMinerWorkArea().getInputDataSets().getFolder().getId(), UPLOAD_TYPE.File);
-					.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
+					Log.debug("Upload completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 
@@ -278,22 +270,18 @@ public class InputDataSetsPanel extends FramedPanel {
 
 				@Override
 				public void onUploadAborted(String parentId, String itemId) {
-					Log.debug("Upload Aborted: [parentID: " + parentId
+					Log.debug("Upload Aborted: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ ", itemId: " + itemId + "]");
 				}
 
 				@Override
-				public void onError(String parentId, String itemId,
+				public void onError(String parentId, String itemId, Throwable throwable) {
-						Throwable throwable) {
+					Log.debug("Upload Error: [parentID: " + parentId + ", itemId: " + itemId + "]");
-					Log.debug("Upload Error: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
 					throwable.printStackTrace();
 				}
 
 				@Override
 				public void onOverwriteCompleted(String parentId, String itemId) {
-					Log.debug("Upload Override Completed: [parentID: "
+					Log.debug("Upload Override Completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 				}
@@ -360,26 +348,30 @@ public class InputDataSetsPanel extends FramedPanel {
 
 				@Override
 				public void onResize(ResizeEvent event) {
-					int scrollBarHeight = event.getHeight()
+					int scrollBarHeight = event.getHeight() - toolBar.getElement().getHeight(false);
-							- toolBar.getElement().getHeight(false);
 					Log.debug("ScrollBarHeight: " + scrollBarHeight);
-					wsResourcesExplorerPanel
+					wsResourcesExplorerPanel.setHeightToInternalScroll(scrollBarHeight);
-							.setHeightToInternalScroll(scrollBarHeight);
 					forceLayout();
 
 				}
 			});
 			forceLayout();
 
-		} catch (Exception e) {
+		} catch (Throwable e) {
-			Log.error("Error opening wsResourceExplorerPanel");
+			Log.error("Error opening wsResourceExplorerPanel: " + e.getLocalizedMessage(), e);
 			e.printStackTrace();
 		}
 	}
 
 	private void refreshWSResourceExplorerPanel() {
 		if (wsResourcesExplorerPanel != null) {
-			wsResourcesExplorerPanel.refreshRootFolderView();
+			try {
+				// wsResourcesExplorerPanel.hardRefresh();
+				wsResourcesExplorerPanel.refreshRootFolderView();
+			} catch (Exception e) {
+				Log.error("Error retrieving data: " + e.getLocalizedMessage());
+
+			}
 		}
 	}
 
@@ -400,14 +392,18 @@ public class InputDataSetsPanel extends FramedPanel {
 	}
 
 	private void deleteItem(SelectEvent event) {
-		ItemDescription itemDescription = new ItemDescription(
+		Log.debug("Selected Item: " + selectedItem);
-				selectedItem.getId(), selectedItem.getName(),
+		if (selectedItem != null) {
-				selectedItem.getOwner(), selectedItem.getPath(), selectedItem
+
-						.getType().name());
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
-		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
-				DataMinerWorkAreaElementType.InputDataSets, itemDescription);
+			DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
-		EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
+					DataMinerWorkAreaElementType.InputDataSets, itemDescription);
-		Log.debug("Fired: " + deleteItemEvent);
+			EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
+			Log.debug("Fired: " + deleteItemEvent);
+		} else {
+			UtilsGXT3.info("Attention", "Select a item!");
+		}
 	}
 
 	private void downloadFile() {
@@ -415,52 +411,40 @@ public class InputDataSetsPanel extends FramedPanel {
 			if (selectedItem.isFolder()) {
 				StringBuilder actionUrl = new StringBuilder();
 				actionUrl.append(GWT.getModuleBaseURL());
-				actionUrl
+				actionUrl.append(Constants.DOWNLOAD_FOLDER_SERVLET + "?"
-						.append(Constants.DOWNLOAD_FOLDER_SERVLET
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER + "=" + selectedItem.getId() + "&"
-								+ "?"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER + "=" + selectedItem.getName() + "&"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER
+						+ Constants.CURR_GROUP_ID + "=" + GCubeClientContext.getCurrentContextId());
-								+ "="
-								+ 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(
+				final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(),
-						selectedItem.getId(), selectedItem.getName(),
+						selectedItem.getName(), selectedItem.getOwner(), selectedItem.getPath(),
-						selectedItem.getOwner(), selectedItem.getPath(),
 						selectedItem.getType().name());
 
-				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(
+				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(itemDescription, new AsyncCallback<String>() {
-						itemDescription, new AsyncCallback<String>() {
 
-							@Override
+					@Override
-							public void onFailure(Throwable caught) {
+					public void onFailure(Throwable caught) {
-								if (caught instanceof SessionExpiredServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
-									EventBusProvider.INSTANCE
+							EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
-											.fireEvent(new SessionExpiredEvent());
+						} else {
-								} else {
+							Log.error("Error open file: " + caught.getLocalizedMessage());
-									Log.error("Error open file: "
+							UtilsGXT3.alert("Error", caught.getLocalizedMessage());
-											+ caught.getLocalizedMessage());
+						}
-									UtilsGXT3.alert("Error",
+						caught.printStackTrace();
-											caught.getLocalizedMessage());
-								}
-								caught.printStackTrace();
 
-							}
+					}
 
-							@Override
+					@Override
-							public void onSuccess(String link) {
+					public void onSuccess(String link) {
-								Log.debug("Retrieved link: " + link);
+						Log.debug("Retrieved link: " + link);
-								Window.open(link, itemDescription.getName(), "");
+						Window.open(link, itemDescription.getName(), "");
-							}
+					}
 
-						});
+				});
 			}
 		} else {
 			UtilsGXT3.info("Attention", "Select a file!");

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/dataspace/OutputDataSetsPanel.java

@@ -22,7 +22,7 @@ import org.gcube.portlets.widgets.dataminermanagerwidget.shared.workspace.ItemDe
 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;
-import org.gcube.portlets.widgets.wsexplorer.client.explore.WorkspaceResourcesExplorerPanel;
+import org.gcube.portlets.widgets.wsexplorer.client.explore.WorkspaceResourcesExplorerPanelPaginated;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
@@ -56,7 +56,9 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 	private Item selectedItem;
 	private MultipleDNDUpload dnd;
-	private WorkspaceResourcesExplorerPanel wsResourcesExplorerPanel;
+
+	private WorkspaceResourcesExplorerPanelPaginated wsResourcesExplorerPanel;
+	// private WorkspaceResourcesExplorerPanel wsResourcesExplorerPanel;
 	private TextButton btnDownload;
 	private TextButton btnDelete;
 	private TextButton btnRefresh;
@@ -86,15 +88,14 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 	private void bindToEvents() {
 
-		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE,
+		EventBusProvider.INSTANCE.addHandler(UIStateEvent.TYPE, new UIStateEvent.UIStateEventHandler() {
-				new UIStateEvent.UIStateEventHandler() {
 
-					@Override
+			@Override
-					public void onChange(UIStateEvent event) {
+			public void onChange(UIStateEvent event) {
-						manageStateEvents(event);
+				manageStateEvents(event);
 
-					}
+			}
-				});
+		});
 
 		EventBusProvider.INSTANCE.addHandler(DataMinerWorkAreaEvent.TYPE,
 				new DataMinerWorkAreaEvent.DataMinerWorkAreaEventHandler() {
@@ -107,19 +108,16 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 				});
 
-		EventBusProvider.INSTANCE
+		EventBusProvider.INSTANCE.addHandler(RefreshDataMinerWorkAreaEvent.TYPE,
-				.addHandler(
+				new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
-						RefreshDataMinerWorkAreaEvent.TYPE,
-						new RefreshDataMinerWorkAreaEvent.RefreshDataMinerWorkAreaEventHandler() {
 
-							@Override
+					@Override
-							public void onRefresh(
+					public void onRefresh(RefreshDataMinerWorkAreaEvent event) {
-									RefreshDataMinerWorkAreaEvent event) {
+						manageRefreshDataMinerWorkAreaEvents(event);
-								manageRefreshDataMinerWorkAreaEvents(event);
 
-							}
+					}
 
-						});
+				});
 
 	}
 
@@ -142,8 +140,7 @@ public class OutputDataSetsPanel extends FramedPanel {
 	}
 
 	private void manageDataMinerWorkAreaEvents(DataMinerWorkAreaEvent event) {
-		Log.debug("OutputDataSetsPanel recieved DataMinerWorkAreaEvent: "
+		Log.debug("OutputDataSetsPanel recieved DataMinerWorkAreaEvent: " + event);
-				+ event);
 		if (event == null) {
 			Log.error("DataMinerWorkAreaEvent");
 			return;
@@ -172,10 +169,8 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 	}
 
-	private void manageRefreshDataMinerWorkAreaEvents(
+	private void manageRefreshDataMinerWorkAreaEvents(RefreshDataMinerWorkAreaEvent event) {
-			RefreshDataMinerWorkAreaEvent event) {
+		Log.debug("OutputDataSetsPanel recieved RefreshDataMinerWorkAreaEvent: " + event);
-		Log.debug("OutputDataSetsPanel recieved RefreshDataMinerWorkAreaEvent: "
-				+ event);
 		if (event == null) {
 			Log.error("RefreshDataMinerWorkAreaEvent");
 			return;
@@ -195,17 +190,14 @@ public class OutputDataSetsPanel extends FramedPanel {
 	}
 
 	private void create(DataMinerWorkAreaEvent event) {
+		Log.debug("Create OutputDataSetsPanel");
 		try {
 
-			if (event == null
+			if (event == null || event.getDataMinerWorkArea() == null
-					|| event.getDataMinerWorkArea() == null
 					|| event.getDataMinerWorkArea().getOutputDataSets() == null
-					|| event.getDataMinerWorkArea().getOutputDataSets()
+					|| event.getDataMinerWorkArea().getOutputDataSets().getFolder() == null
-							.getFolder() == null
+					|| event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getOutputDataSets()
+					|| event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId().isEmpty()) {
-							.getFolder().getId() == null
-					|| event.getDataMinerWorkArea().getOutputDataSets()
-							.getFolder().getId().isEmpty()) {
 				if (v != null) {
 					remove(v);
 					forceLayout();
@@ -215,17 +207,18 @@ public class OutputDataSetsPanel extends FramedPanel {
 			}
 
 			List<String> showProperties = new ArrayList<String>();
-			for (DataSpacePropertiesType dataSpaceProperties : DataSpacePropertiesType
+			for (DataSpacePropertiesType dataSpaceProperties : DataSpacePropertiesType.values()) {
-					.values()) {
 				showProperties.add(dataSpaceProperties.getLabel());
 			}
 			FilterCriteria filterCriteria = new FilterCriteria();
 			Map<String, String> map = new HashMap<String, String>();
 			filterCriteria.setRequiredProperties(map);
 
-			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanel(
+			Log.debug("Create wsResourcesExplorerPanel for Output: ["
-					event.getDataMinerWorkArea().getOutputDataSets()
+					+ event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId() + ", false, "
-							.getFolder().getId(), false, showProperties,
+					+ showProperties + ", " + filterCriteria + ", true, " + DISPLAY_FIELD.CREATION_DATE + "]");
+			wsResourcesExplorerPanel = new WorkspaceResourcesExplorerPanelPaginated(
+					event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId(), false, showProperties,
 					filterCriteria, true, DISPLAY_FIELD.CREATION_DATE);
 
 			WorskpaceExplorerSelectNotificationListener wsResourceExplorerListener = new WorskpaceExplorerSelectNotificationListener() {
@@ -253,23 +246,22 @@ public class OutputDataSetsPanel extends FramedPanel {
 				}
 			};
 
-			wsResourcesExplorerPanel
+			wsResourcesExplorerPanel.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
-					.addWorkspaceExplorerSelectNotificationListener(wsResourceExplorerListener);
+			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanelForOutput");
-			wsResourcesExplorerPanel.ensureDebugId("wsResourceExplorerPanel");
 			wsResourcesExplorerPanel.setHeightToInternalScroll(300);
 
+			Log.debug("Define DND for InputDataSetsPanel");
+
 			// DND
 
 			dnd = new MultipleDNDUpload();
-			dnd.setParameters(event.getDataMinerWorkArea().getOutputDataSets()
+			dnd.setParameters(event.getDataMinerWorkArea().getOutputDataSets().getFolder().getId(), UPLOAD_TYPE.File);
-					.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
+					Log.debug("Upload completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 
@@ -277,22 +269,18 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 				@Override
 				public void onUploadAborted(String parentId, String itemId) {
-					Log.debug("Upload Aborted: [parentID: " + parentId
+					Log.debug("Upload Aborted: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ ", itemId: " + itemId + "]");
 				}
 
 				@Override
-				public void onError(String parentId, String itemId,
+				public void onError(String parentId, String itemId, Throwable throwable) {
-						Throwable throwable) {
+					Log.debug("Upload Error: [parentID: " + parentId + ", itemId: " + itemId + "]");
-					Log.debug("Upload Error: [parentID: " + parentId
-							+ ", itemId: " + itemId + "]");
 					throwable.printStackTrace();
 				}
 
 				@Override
 				public void onOverwriteCompleted(String parentId, String itemId) {
-					Log.debug("Upload Override Completed: [parentID: "
+					Log.debug("Upload Override Completed: [parentID: " + parentId + ", itemId: " + itemId + "]");
-							+ parentId + ", itemId: " + itemId + "]");
 					wsResourcesExplorerPanel.refreshRootFolderView();
 					forceLayout();
 				}
@@ -358,26 +346,31 @@ public class OutputDataSetsPanel extends FramedPanel {
 
 				@Override
 				public void onResize(ResizeEvent event) {
-					int scrollBarHeight = event.getHeight()
+					int scrollBarHeight = event.getHeight() - toolBar.getElement().getHeight(false);
-							- toolBar.getElement().getHeight(false);
 					Log.debug("ScrollBarHeight: " + scrollBarHeight);
-					wsResourcesExplorerPanel
+					wsResourcesExplorerPanel.setHeightToInternalScroll(scrollBarHeight);
-							.setHeightToInternalScroll(scrollBarHeight);
 					forceLayout();
 
 				}
 			});
 			forceLayout();
 
-		} catch (Exception e) {
+		} catch (Throwable e) {
-			Log.error("Error opening wsResourceExplorerPanel");
+			Log.error("Error opening wsResourceExplorerPanel: " + e.getLocalizedMessage(), e);
 			e.printStackTrace();
 		}
 	}
 
 	private void refreshWSResourceExplorerPanel() {
 		if (wsResourcesExplorerPanel != null) {
-			wsResourcesExplorerPanel.refreshRootFolderView();
+			try {
+				wsResourcesExplorerPanel.refreshRootFolderView();
+				
+				// wsResourcesExplorerPanel.hardRefresh();
+			} catch (Exception e) {
+				Log.error("Error retrieving data: " + e.getLocalizedMessage());
+
+			}
 		}
 	}
 
@@ -392,21 +385,24 @@ public class OutputDataSetsPanel extends FramedPanel {
 			}
 
 		} catch (Throwable e) {
-			Log.error("Error in OutputDataSetsPanel: "
+			Log.error("Error in OutputDataSetsPanel: " + e.getLocalizedMessage());
-					+ e.getLocalizedMessage());
 			e.printStackTrace();
 		}
 	}
 
 	private void deleteItem(SelectEvent event) {
-		ItemDescription itemDescription = new ItemDescription(
+		Log.debug("Selected Item: " + selectedItem);
-				selectedItem.getId(), selectedItem.getName(),
+		if (selectedItem != null) {
-				selectedItem.getOwner(), selectedItem.getPath(), selectedItem
+
-						.getType().name());
+			ItemDescription itemDescription = new ItemDescription(selectedItem.getId(), selectedItem.getName(),
-		DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
+					selectedItem.getOwner(), selectedItem.getPath(), selectedItem.getType().name());
-				DataMinerWorkAreaElementType.OutputDataSets, itemDescription);
+			DeleteItemRequestEvent deleteItemEvent = new DeleteItemRequestEvent(
-		EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
+					DataMinerWorkAreaElementType.OutputDataSets, itemDescription);
-		Log.debug("Fired: " + deleteItemEvent);
+			EventBusProvider.INSTANCE.fireEvent(deleteItemEvent);
+			Log.debug("Fired: " + deleteItemEvent);
+		} else {
+			UtilsGXT3.info("Attention", "Select a item!");
+		}
 	}
 
 	private void downloadFile() {
@@ -414,51 +410,39 @@ public class OutputDataSetsPanel extends FramedPanel {
 			if (selectedItem.isFolder()) {
 				StringBuilder actionUrl = new StringBuilder();
 				actionUrl.append(GWT.getModuleBaseURL());
-				actionUrl
+				actionUrl.append(Constants.DOWNLOAD_FOLDER_SERVLET + "?"
-						.append(Constants.DOWNLOAD_FOLDER_SERVLET
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER + "=" + selectedItem.getId() + "&"
-								+ "?"
+						+ Constants.DOWNLOAD_FOLDER_SERVLET_FOLDER_NAME_PARAMETER + "=" + selectedItem.getName() + "&"
-								+ Constants.DOWNLOAD_FOLDER_SERVLET_ITEM_ID_PARAMETER
+						+ Constants.CURR_GROUP_ID + "=" + GCubeClientContext.getCurrentContextId());
-								+ "="
-								+ 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(
+				final ItemDescription itemDescription = new ItemDescription(selectedItem.getId(),
-						selectedItem.getId(), selectedItem.getName(),
+						selectedItem.getName(), selectedItem.getOwner(), selectedItem.getPath(),
-						selectedItem.getOwner(), selectedItem.getPath(),
 						selectedItem.getType().name());
 
-				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(
+				DataMinerPortletServiceAsync.INSTANCE.getPublicLink(itemDescription, new AsyncCallback<String>() {
-						itemDescription, new AsyncCallback<String>() {
 
-							@Override
+					@Override
-							public void onFailure(Throwable caught) {
+					public void onFailure(Throwable caught) {
-								if (caught instanceof SessionExpiredServiceException) {
+						if (caught instanceof SessionExpiredServiceException) {
-									EventBusProvider.INSTANCE
+							EventBusProvider.INSTANCE.fireEvent(new SessionExpiredEvent());
-											.fireEvent(new SessionExpiredEvent());
+						} else {
-								} else {
+							Log.error("Error open file: " + caught.getLocalizedMessage());
-									Log.error("Error open file: "
+							UtilsGXT3.alert("Error", caught.getLocalizedMessage());
-											+ caught.getLocalizedMessage());
+						}
-									UtilsGXT3.alert("Error",
+						caught.printStackTrace();
-											caught.getLocalizedMessage());
-								}
-								caught.printStackTrace();
 
-							}
+					}
 
-							@Override
+					@Override
-							public void onSuccess(String link) {
+					public void onSuccess(String link) {
-								Log.debug("Retrieved link: " + link);
+						Log.debug("Retrieved link: " + link);
-								Window.open(link, itemDescription.getName(), "");
+						Window.open(link, itemDescription.getName(), "");
-							}
+					}
 
-						});
+				});
 			}
 
 		} else {

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/experiments/OperatorsPanel.java

@@ -104,59 +104,66 @@ public class OperatorsPanel extends FramedPanel {
 	}
 
 	private void manageOperatorsClassificationEvent(OperatorsClassificationEvent event) {
-		if (event.getOperatorsClassificationRequestType().compareTo(OperatorsClassificationRequestType.ByName) == 0) {
+		try {
-			if (currentClassificationName.compareTo(event.getClassificationName()) == 0) {
-				waitMessage(false);
-				if (event.getOperatorsClassification() != null) {
-					operatorsClassification = event.getOperatorsClassification();
-					operators.clear();
-					operators.addAll(event.getOperatorsClassification().getOperators());
-					String operatorId = event.getOperatorId();
 
-					Log.debug("ShowCategoriesList");
+			if (event.getOperatorsClassificationRequestType()
-					List<OperatorCategoryPanel> categoryPanels = mapCategoriesPanels.get(currentClassificationName);
+					.compareTo(OperatorsClassificationRequestType.ByName) == 0) {
-					if (categoryPanels == null) {
+				if (currentClassificationName.compareTo(event.getClassificationName()) == 0) {
-						categoryPanels = new ArrayList<OperatorCategoryPanel>();
+					waitMessage(false);
-						if (operatorsClassification != null) {
+					if (event.getOperatorsClassification() != null) {
-							for (OperatorCategory cat : operatorsClassification.getOperatorCategories()) {
+						operatorsClassification = event.getOperatorsClassification();
-								categoryPanels.add(new OperatorCategoryPanel(handler, cat));
+						operators.clear();
+						operators.addAll(event.getOperatorsClassification().getOperators());
+						String operatorId = event.getOperatorId();
+
+						Log.debug("ShowCategoriesList");
+						List<OperatorCategoryPanel> categoryPanels = mapCategoriesPanels.get(currentClassificationName);
+						if (categoryPanels == null) {
+							categoryPanels = new ArrayList<OperatorCategoryPanel>();
+							if (operatorsClassification != null) {
+								for (OperatorCategory cat : operatorsClassification.getOperatorCategories()) {
+									categoryPanels.add(new OperatorCategoryPanel(handler, cat));
+								}
 							}
+							mapCategoriesPanels.put(currentClassificationName, categoryPanels);
 						}
-						mapCategoriesPanels.put(currentClassificationName, categoryPanels);
-					}
 
-					v.clear();
+						v.clear();
-					for (OperatorCategoryPanel panel : categoryPanels) {
+						for (OperatorCategoryPanel panel : categoryPanels) {
-						v.add(panel);
+							v.add(panel);
 
-					}
-					view = View.CATEGORIES;
-					if (operatorId != null && !operatorId.isEmpty()) {
-						OperatorCategory operatorCategoryDefault = null;
-						Operator operatorDefault = null;
-						for (Operator op : operators) {
-							if (op.getId().compareTo(operatorId) == 0) {
-								operatorDefault = op;
-								operatorCategoryDefault = op.getCategory();
-								break;
-							}
 						}
-						if (operatorCategoryDefault != null) {
+						view = View.CATEGORIES;
-							for (OperatorCategoryPanel opCategoryPanel : categoryPanels) {
+						if (operatorId != null && !operatorId.isEmpty()) {
-								if (opCategoryPanel.getCategory().compareTo(operatorCategoryDefault) == 0) {
+							OperatorCategory operatorCategoryDefault = null;
-									opCategoryPanel.setOperatorDefault(operatorDefault);
+							Operator operatorDefault = null;
+							for (Operator op : operators) {
+								if (op.getId().compareTo(operatorId) == 0) {
+									operatorDefault = op;
+									operatorCategoryDefault = op.getCategory();
 									break;
 								}
-
 							}
+							if (operatorCategoryDefault != null) {
+								for (OperatorCategoryPanel opCategoryPanel : categoryPanels) {
+									if (opCategoryPanel.getCategory().compareTo(operatorCategoryDefault) == 0) {
+										opCategoryPanel.setOperatorDefault(operatorDefault);
+										break;
+									}
+
+								}
+							}
+
 						}
 
+						forceLayout();
 					}
 
-					forceLayout();
 				}
-
 			}
+		} catch (Throwable e) {
+			Log.error("Error in OperatorsPanel: " + e.getLocalizedMessage(), e);
+			e.printStackTrace();
 		}
 
 	}

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/parametersfield/FileFld.java

@@ -19,12 +19,16 @@ import org.gcube.portlets.widgets.dataminermanagerwidget.client.tr.TabularResour
 import org.gcube.portlets.widgets.dataminermanagerwidget.client.util.UtilsGXT3;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.SessionExpiredServiceException;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.workspace.ItemDescription;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.event.SelectVariableEvent;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.event.SelectVariableEvent.SelectVariableEventHandler;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.widgets.NetCDFPreviewDialog;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.select.WorkspaceExplorerSelectDialog;
 import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.allen_sauer.gwt.log.client.Log;
+import com.google.gwt.core.client.GWT;
 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.Widget;
@@ -61,6 +65,7 @@ public class FileFld extends AbstractFld {
 	private TextButton selectTRButton2;
 	private TextButton cancelButton;
 	private TextButton downloadButton;
+	private TextButton netcdfButton;
 
 	private ItemDescription selectedFileItem = null;
 	private TabularResourceData tabularResourceData;
@@ -120,14 +125,20 @@ public class FileFld extends AbstractFld {
 
 		HtmlLayoutContainer descr;
 
-		if (fileParameter.getDescription() == null) {
+		if (fileParameter.getDescription() == null || fileParameter.getDescription().isEmpty()) {
 			descr = new HtmlLayoutContainer("<p style='margin-left:5px !important;'></p>");
 			descr.addStyleName("workflow-fieldDescription");
 
 		} else {
-			descr = new HtmlLayoutContainer(
+			if (fileParameter.isNetcdf()) {
-					"<p style='margin-left:5px !important;'>" + fileParameter.getDescription() + "</p>");
+				String des = fileParameter.getDescription().replaceFirst("\\[NETCDF\\]", "");
-			descr.addStyleName("workflow-fieldDescription");
+				descr = new HtmlLayoutContainer("<p style='margin-left:5px !important;'>" + des + "</p>");
+				descr.addStyleName("workflow-fieldDescription");
+			} else {
+				descr = new HtmlLayoutContainer(
+						"<p style='margin-left:5px !important;'>" + fileParameter.getDescription() + "</p>");
+				descr.addStyleName("workflow-fieldDescription");
+			}
 		}
 
 		horiz.add(tabContainer, new BoxLayoutData(new Margins()));
@@ -252,6 +263,16 @@ public class FileFld extends AbstractFld {
 		});
 		downloadButton.setToolTip("Download File");
 
+		netcdfButton = new TextButton("");
+		netcdfButton.setIcon(DataMinerManagerPanel.resources.netcdf());
+		netcdfButton.addSelectHandler(new SelectEvent.SelectHandler() {
+
+			@Override
+			public void onSelect(SelectEvent event) {
+				showNetCDFFile();
+			}
+		});
+
 	}
 
 	private void useTabularResource() {
@@ -261,7 +282,7 @@ public class FileFld extends AbstractFld {
 		selectedFileItem.setPublicLink(tabularResourceData.getTabularResourceId());
 		showFieldWithTRSelection();
 	}
-
+	
 	private void retrieveFileInformation(final Item item) {
 		Log.debug("Retrieved: " + item);
 		final ItemDescription itemDescription = new ItemDescription(item.getId(), item.getName(), item.getOwner(),
@@ -323,6 +344,27 @@ public class FileFld extends AbstractFld {
 
 	}
 
+	private void showNetCDFFile() {
+		if (selectedFileItem != null) {
+			GWT.log("NetcdfBasicWidgetsManager");
+
+			// Example
+			SelectVariableEventHandler handler = new SelectVariableEventHandler() {
+
+				@Override
+				public void onResponse(SelectVariableEvent event) {
+					GWT.log("SelectVariable Response: " + event);
+
+				}
+			};
+
+			NetCDFPreviewDialog netcdfDialog = new NetCDFPreviewDialog(selectedFileItem.getPublicLink());
+			netcdfDialog.addSelectVariableEventHandler(handler);
+			netcdfDialog.setZIndex(XDOM.getTopZIndex());
+
+		}
+	}
+
 	private void showNoSelectionField() {
 		vp.clear();
 		vp.add(selectTRButton);
@@ -347,6 +389,9 @@ public class FileFld extends AbstractFld {
 		h.add(selectTRButton2, new BoxLayoutData(new Margins()));
 		h.add(selectButton2, new BoxLayoutData(new Margins()));
 		h.add(downloadButton, new BoxLayoutData(new Margins()));
+		if (fileParameter.isNetcdf()) {
+			h.add(netcdfButton, new BoxLayoutData(new Margins()));
+		}
 		h.add(cancelButton, new BoxLayoutData(new Margins()));
 		vp.clear();
 		vp.add(h);

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/resources/Resources.java

@@ -89,6 +89,9 @@ public interface Resources extends ClientBundle {
 
 	@Source("download.png")
 	ImageResource download();
+	
+	@Source("show.png")
+	ImageResource netcdf();
 
 	@Source("cancel_circle.png")
 	ImageResource cancelCircle();

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/client/widgets/FileViewer.java

@@ -3,8 +3,13 @@ package org.gcube.portlets.widgets.dataminermanagerwidget.client.widgets;
 import org.gcube.data.analysis.dataminermanagercl.shared.data.computations.ComputationId;
 import org.gcube.data.analysis.dataminermanagercl.shared.data.output.FileResource;
 import org.gcube.portlets.widgets.dataminermanagerwidget.client.DataMinerManagerPanel;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.event.SelectVariableEvent;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.event.SelectVariableEvent.SelectVariableEventHandler;
+import org.gcube.portlets.widgets.netcdfbasicwidgets.client.widgets.NetCDFPreviewDialog;
 
+import com.google.gwt.core.client.GWT;
 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
+import com.sencha.gxt.core.client.dom.XDOM;
 import com.sencha.gxt.core.client.util.Margins;
 import com.sencha.gxt.widget.core.client.button.TextButton;
 import com.sencha.gxt.widget.core.client.container.HtmlLayoutContainer;
@@ -59,8 +64,43 @@ public class FileViewer extends SimpleContainer {
 			}
 		});
 
+		TextButton netcdfButton = new TextButton("");
+		netcdfButton.setIcon(DataMinerManagerPanel.resources.netcdf());
+		netcdfButton.addSelectHandler(new SelectEvent.SelectHandler() {
+
+			@Override
+			public void onSelect(SelectEvent event) {
+				showNetCDFFile();
+			}
+		});
+
 		lc.add(downloadBtn, new VerticalLayoutData(-1, -1, new Margins(0)));
+		if (fileResource.isNetcdf()) {
+			lc.add(netcdfButton, new VerticalLayoutData(-1, -1, new Margins(0)));
+		}
 		add(lc);
 	}
 
+	private void showNetCDFFile() {
+		if (fileResource != null && fileResource.getUrl() != null && !fileResource.getUrl().isEmpty()
+				&& fileResource.isNetcdf()) {
+			GWT.log("NetcdfBasicWidgetsManager");
+
+			// Example
+			SelectVariableEventHandler handler = new SelectVariableEventHandler() {
+
+				@Override
+				public void onResponse(SelectVariableEvent event) {
+					GWT.log("SelectVariable Response: " + event);
+
+				}
+			};
+
+			NetCDFPreviewDialog netcdfDialog = new NetCDFPreviewDialog(fileResource.getUrl());
+			netcdfDialog.addSelectVariableEventHandler(handler);
+			netcdfDialog.setZIndex(XDOM.getTopZIndex());
+
+		}
+	}
+
 }

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/dataminermanagerwidget.gwt.xml

@@ -21,6 +21,11 @@
 	<inherits
 		name='org.gcube.portlets.widgets.openlayerbasicwidgets.olbasicwidgets' />
 
+	<!-- NetCDF Basic Widgets -->
+	<inherits
+		name='org.gcube.portlets.widgets.netcdfbasicwidgets.netcdfbasicwidgets' />
+	
+
 	<!-- DataMiner Manager CL -->
 	<inherits
 		name='org.gcube.data.analysis.dataminermanagercl.dataminermanagercl' />

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/server/DataMinerManagerServiceImpl.java

@@ -17,8 +17,8 @@ import org.gcube.data.analysis.dataminermanagercl.shared.parameters.Parameter;
 import org.gcube.data.analysis.dataminermanagercl.shared.process.ComputationStatus;
 import org.gcube.data.analysis.dataminermanagercl.shared.process.Operator;
 import org.gcube.data.analysis.dataminermanagercl.shared.process.OperatorsClassification;
+import org.gcube.portlets.widgets.dataminermanagerwidget.server.storage.StorageUtil;
 import org.gcube.portlets.widgets.dataminermanagerwidget.server.util.DataMinerWorkAreaManager;
-import org.gcube.portlets.widgets.dataminermanagerwidget.server.util.StorageUtil;
 import org.gcube.portlets.widgets.dataminermanagerwidget.server.util.TableReader;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.ServiceException;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.session.UserInfo;
@@ -167,7 +167,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			HttpServletRequest httpRequest = this.getThreadLocalRequest();
 			ServiceCredentials serviceCredentials = SessionUtil
 					.getServiceCredentials(httpRequest);
-			Map<String, String> properties = StorageUtil.getProperties(
+			StorageUtil storageUtil = new StorageUtil();
+			Map<String, String> properties = storageUtil.getProperties(
 					serviceCredentials.getUserName(), itemDescription.getId());
 			logger.debug("Properties: " + properties);
 
@@ -220,7 +221,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			ServiceCredentials serviceCredentials = SessionUtil
 					.getServiceCredentials(httpRequest);
 			logger.debug("DeleteItem(): " + itemDescription);
-			StorageUtil.deleteItem(serviceCredentials.getUserName(),
+			StorageUtil storageUtil = new StorageUtil();
+			storageUtil.deleteItem(serviceCredentials.getUserName(),
 					itemDescription.getId());
 			return;
 
@@ -284,7 +286,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			ServiceCredentials serviceCredentials = SessionUtil
 					.getServiceCredentials(httpRequest);
 			logger.debug("GetPublicLink(): " + itemDescription);
-			String link = StorageUtil.getPublicLink(
+			StorageUtil storageUtil = new StorageUtil();
+			String link = storageUtil.getPublicLink(
 					serviceCredentials.getUserName(), itemDescription.getId());
 
 			return link;
@@ -355,7 +358,8 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			ServiceCredentials serviceCredentials = SessionUtil
 					.getServiceCredentials(httpRequest);
 			logger.debug("OutputDataByComputationItemt(): " + itemDescription);
-			Map<String, String> properties = StorageUtil.getProperties(
+			StorageUtil storageUtil = new StorageUtil();
+			Map<String, String> properties = storageUtil.getProperties(
 					serviceCredentials.getUserName(), itemDescription.getId());
 
 			logger.debug("Properties: " + properties);

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/server/DownloadFolderServlet.java

@@ -3,7 +3,11 @@ package org.gcube.portlets.widgets.dataminermanagerwidget.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;
@@ -13,7 +17,7 @@ import javax.servlet.http.HttpSession;
 
 import org.apache.commons.io.IOUtils;
 import org.gcube.data.analysis.dataminermanagercl.server.util.ServiceCredentials;
-import org.gcube.portlets.widgets.dataminermanagerwidget.server.util.StorageUtil;
+import org.gcube.portlets.widgets.dataminermanagerwidget.server.storage.StorageUtil;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.Constants;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -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("dataMinerWidgetDownload", ".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);
@@ -122,7 +132,7 @@ public class DownloadFolderServlet extends HttpServlet {
 			out.flush();
 			out.close();
 			fileTmpZip.close();
-			tmpZip.delete();
+			Files.delete(tempFile);
 			return;
 
 		} catch (Throwable e) {

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/server/storage/StorageUtil.java

@@ -0,0 +1,229 @@
+package org.gcube.portlets.widgets.dataminermanagerwidget.server.storage;
+
+import java.io.InputStream;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.gcube.common.storagehub.client.StreamDescriptor;
+import org.gcube.common.storagehub.client.dsl.FileContainer;
+import org.gcube.common.storagehub.client.dsl.ItemContainer;
+import org.gcube.common.storagehub.client.dsl.ListResolver;
+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.FolderItem;
+import org.gcube.common.storagehub.model.items.Item;
+import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.ServiceException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 
+ * @author Giancarlo Panichi
+ * 
+ *
+ */
+public class StorageUtil {
+
+	private static Logger logger = LoggerFactory.getLogger(StorageUtil.class);
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param itemId
+	 *            item id
+	 * @return map properties
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public Map<String, String> getProperties(String user, String itemId) throws ServiceException {
+		try {
+			StorageHubClient shc = new StorageHubClient();
+			Item item = shc.open(itemId).asItem().get();
+			Metadata metadata = item.getPropertyMap();
+			Map<String, String> itemMap = new HashMap<String, String>();
+			Map<String, Object> metadataMap = metadata.getValues();
+			for (String key : metadataMap.keySet()) {
+				String s = String.valueOf(metadataMap.get(key));
+				itemMap.put(key, s);
+			}
+			return itemMap;
+
+		} catch (Throwable e) {
+			logger.error("Error retrieving properties: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage(), e);
+		}
+
+	}
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param itemId
+	 *            item id
+	 * @return input stream
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public InputStream getInputStreamForItemOnWorkspace(String user, String itemId) throws ServiceException {
+		try {
+			logger.debug("getInputStreamForItemOnWorkspace: [user=" + user + ", itemId=" + itemId + "]");
+			StorageHubClient shc = new StorageHubClient();
+			FileContainer fileContainer = shc.open(itemId).asFile();
+			StreamDescriptor streamDescriptor = fileContainer.download();
+			return streamDescriptor.getStream();
+
+		} catch (Throwable e) {
+			logger.error("Error retrieving InputStream for File: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage(), e);
+		}
+	}
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param itemId
+	 *            item id
+	 * @return public link
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public String getPublicLink(String user, String itemId) throws ServiceException {
+		try {
+			logger.debug("getPublicLink: [user=" + user + ", itemId=" + itemId + "]");
+			StorageHubClient shc = new StorageHubClient();
+			URL url = shc.open(itemId).asFile().getPublicLink();
+			return url.toString();
+
+		} catch (Throwable e) {
+			logger.error("Error retrieving public link: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage(), e);
+		}
+	}
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param folderId
+	 *            folder id
+	 * @return input stream
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public InputStream zipFolder(String user, String folderId) throws ServiceException {
+		try {
+			logger.debug("zipFolder: [user=" + user + ", folderId=" + folderId + "]");
+			StorageHubClient shc = new StorageHubClient();
+			OpenResolver openResolver = shc.open(folderId);
+
+			ItemContainer<Item> itemContainer = openResolver.asItem();
+			Item item = itemContainer.get();
+			if (item instanceof FolderItem) {
+				StreamDescriptor streamDescriptor = openResolver.asFolder().download();
+				InputStream is = streamDescriptor.getStream();
+				return is;
+			} else {
+				throw new ServiceException("Is not a valid folder!");
+			}
+
+		} catch (Throwable e) {
+			logger.error("Error in zip Folder: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage(), e);
+		}
+
+	}
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param itemName
+	 *            item name
+	 * @return workspace item
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public Item getItemInRootFolderOnWorkspace(String user, String itemName) throws ServiceException {
+		try {
+			logger.debug("GetItemInRootFolder: [user=" + user + ", itemName=" + itemName + "]");
+			StorageHubClient shc = new StorageHubClient();
+			ListResolver listResolver = shc.getWSRoot().findByName(itemName);
+			List<? extends Item> items = listResolver.getItems();
+
+			if (items != null && !items.isEmpty()) {
+				return items.get(0);
+			} else {
+				return null;
+			}
+
+		} catch (Throwable e) {
+			logger.error("Error in get Item in RootFolder: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage());
+		}
+	}
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param folderId
+	 *            folder id
+	 * @param itemName
+	 *            item name
+	 * @return workspace item
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public Item getItemInFolderOnWorkspace(String user, String folderId, String itemName) throws ServiceException {
+		try {
+			logger.debug("GetItemInFolder: [user=" + user + ", folderId=" + folderId + ", itemName=" + itemName + "]");
+			StorageHubClient shc = new StorageHubClient();
+			ListResolver listResolver = shc.open(folderId).asFolder().findByName(itemName);
+			List<? extends Item> items = listResolver.getItems();
+
+			if (items != null && !items.isEmpty()) {
+				return items.get(0);
+			} else {
+				return null;
+			}
+
+		} catch (Throwable e) {
+			logger.error("Error in get Item in Folder: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage());
+		}
+	}
+
+	/**
+	 * 
+	 * @param user
+	 *            user
+	 * @param itemId
+	 *            item id
+	 * @throws ServiceException
+	 *             service exception
+	 */
+	public void deleteItem(String user, String itemId) throws ServiceException {
+		try {
+			logger.debug("User: " + user + ", ItemId:" + itemId);
+			StorageHubClient shc = new StorageHubClient();
+			OpenResolver openResolver = shc.open(itemId);
+
+			ItemContainer<Item> itemContainer = openResolver.asItem();
+			itemContainer.delete();
+
+			return;
+		} catch (Throwable e) {
+			logger.error("Error deleting Item: " + e.getLocalizedMessage(), e);
+			throw new ServiceException(e.getLocalizedMessage());
+
+		}
+
+	}
+
+}

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/server/util/DataMinerWorkAreaManager.java

@@ -1,8 +1,8 @@
 package org.gcube.portlets.widgets.dataminermanagerwidget.server.util;
 
-
+import org.gcube.common.storagehub.model.items.Item;
-import org.gcube.common.homelibrary.home.workspace.WorkspaceItem;
 import org.gcube.data.analysis.dataminermanagercl.server.util.ServiceCredentials;
+import org.gcube.portlets.widgets.dataminermanagerwidget.server.storage.StorageUtil;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.ServiceException;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.workspace.Computations;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.workspace.DataMinerWorkArea;
@@ -24,8 +24,7 @@ public class DataMinerWorkAreaManager {
 	private static final String COMPUTED_DATA_FOLDER = "Output Data Sets";
 	private static final String COMPUTATIONS_FOLDER = "Computations";
 
-	public static final Logger logger = LoggerFactory
+	public static final Logger logger = LoggerFactory.getLogger(DataMinerWorkAreaManager.class);
-			.getLogger(DataMinerWorkAreaManager.class);
 
 	private ServiceCredentials serviceCredentials;
 
@@ -35,10 +34,10 @@ public class DataMinerWorkAreaManager {
 
 	public DataMinerWorkArea getDataMinerWorkArea() throws ServiceException {
 		DataMinerWorkArea dataMinerWorkArea = null;
+		StorageUtil storageUtil = new StorageUtil();
 		try {
-			WorkspaceItem wiDataMinerFolder = StorageUtil
+			Item wiDataMinerFolder = storageUtil.getItemInRootFolderOnWorkspace(serviceCredentials.getUserName(),
-					.getItemInRootFolderOnWorkspace(serviceCredentials.getUserName(),
+					DATA_MINER_FOLDER);
-							DATA_MINER_FOLDER);
 
 			if (wiDataMinerFolder == null) {
 				dataMinerWorkArea = new DataMinerWorkArea(null);
@@ -46,13 +45,9 @@ public class DataMinerWorkAreaManager {
 			} else {
 				ItemDescription dataMinerWorkAreaFolder = null;
 
-				dataMinerWorkAreaFolder = new ItemDescription(
+				dataMinerWorkAreaFolder = new ItemDescription(wiDataMinerFolder.getId(), wiDataMinerFolder.getName(),
-						wiDataMinerFolder.getId(), wiDataMinerFolder.getName(),
+						wiDataMinerFolder.getOwner(), wiDataMinerFolder.getPath(), null);
-						wiDataMinerFolder.getOwner().getPortalLogin(),
+				dataMinerWorkArea = new DataMinerWorkArea(dataMinerWorkAreaFolder);
-						wiDataMinerFolder.getPath(), wiDataMinerFolder
-								.getType().name());
-				dataMinerWorkArea = new DataMinerWorkArea(
-						dataMinerWorkAreaFolder);
 
 			}
 
@@ -65,18 +60,12 @@ public class DataMinerWorkAreaManager {
 
 		InputDataSets inputDataSets = null;
 		try {
-			WorkspaceItem wiImportedDataFolder = StorageUtil
+			Item wiImportedDataFolder = storageUtil.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
-					.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
+					dataMinerWorkArea.getDataMinerWorkAreaFolder().getId(), IMPORTED_DATA_FOLDER);
-							dataMinerWorkArea.getDataMinerWorkAreaFolder()
-									.getId(), IMPORTED_DATA_FOLDER);
 			ItemDescription importedDataFolder = null;
 
-			importedDataFolder = new ItemDescription(
+			importedDataFolder = new ItemDescription(wiImportedDataFolder.getId(), wiImportedDataFolder.getName(),
-					wiImportedDataFolder.getId(),
+					wiImportedDataFolder.getOwner(), wiImportedDataFolder.getPath(), null);
-					wiImportedDataFolder.getName(), wiImportedDataFolder
-							.getOwner().getPortalLogin(),
-					wiImportedDataFolder.getPath(), wiImportedDataFolder
-							.getType().name());
 
 			inputDataSets = new InputDataSets(importedDataFolder);
 
@@ -87,18 +76,12 @@ public class DataMinerWorkAreaManager {
 
 		OutputDataSets outputDataSets = null;
 		try {
-			WorkspaceItem wiComputedDataFolder = StorageUtil
+			Item wiComputedDataFolder = storageUtil.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
-					.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
+					dataMinerWorkArea.getDataMinerWorkAreaFolder().getId(), COMPUTED_DATA_FOLDER);
-							dataMinerWorkArea.getDataMinerWorkAreaFolder()
-									.getId(), COMPUTED_DATA_FOLDER);
 			ItemDescription computedDataFolder = null;
 
-			computedDataFolder = new ItemDescription(
+			computedDataFolder = new ItemDescription(wiComputedDataFolder.getId(), wiComputedDataFolder.getName(),
-					wiComputedDataFolder.getId(),
+					wiComputedDataFolder.getOwner(), wiComputedDataFolder.getPath(), null);
-					wiComputedDataFolder.getName(), wiComputedDataFolder
-							.getOwner().getPortalLogin(),
-					wiComputedDataFolder.getPath(), wiComputedDataFolder
-							.getType().name());
 			outputDataSets = new OutputDataSets(computedDataFolder);
 
 		} catch (Throwable e) {
@@ -108,18 +91,14 @@ public class DataMinerWorkAreaManager {
 
 		Computations computations = null;
 		try {
-			WorkspaceItem wiComputationsDataFolder = StorageUtil
+			Item wiComputationsDataFolder = storageUtil.getItemInFolderOnWorkspace(
-					.getItemInFolderOnWorkspace(serviceCredentials.getUserName(),
+					serviceCredentials.getUserName(), dataMinerWorkArea.getDataMinerWorkAreaFolder().getId(),
-							dataMinerWorkArea.getDataMinerWorkAreaFolder()
+					COMPUTATIONS_FOLDER);
-									.getId(), COMPUTATIONS_FOLDER);
 			ItemDescription computationsDataFolder = null;
 
-			computationsDataFolder = new ItemDescription(
+			computationsDataFolder = new ItemDescription(wiComputationsDataFolder.getId(),
-					wiComputationsDataFolder.getId(),
+					wiComputationsDataFolder.getName(), wiComputationsDataFolder.getOwner(),
-					wiComputationsDataFolder.getName(),
+					wiComputationsDataFolder.getPath(), null);
-					wiComputationsDataFolder.getOwner().getPortalLogin(),
-					wiComputationsDataFolder.getPath(),
-					wiComputationsDataFolder.getType().name());
 			computations = new Computations(computationsDataFolder);
 
 		} catch (Throwable e) {

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/server/util/StorageUtil.java

@@ -1,288 +0,0 @@
-package org.gcube.portlets.widgets.dataminermanagerwidget.server.util;
-
-import java.io.File;
-import java.io.InputStream;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-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.contentmanagement.blobstorage.service.IClient;
-import org.gcube.contentmanager.storageclient.wrapper.AccessType;
-import org.gcube.contentmanager.storageclient.wrapper.MemoryType;
-import org.gcube.contentmanager.storageclient.wrapper.StorageClient;
-import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.ServiceException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * 
- * @author Giancarlo Panichi
- * 
- *
- */
-public class StorageUtil {
-
-	private static Logger logger = LoggerFactory.getLogger(StorageUtil.class);
-
-	/**
-	 * 
-	 * @param user
-	 *            user
-	 * @param itemId
-	 *            item id
-	 * @return map
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static Map<String, String> getProperties(String user, String itemId) throws ServiceException {
-		try {
-			Workspace ws = HomeLibrary.getUserWorkspace(user);
-
-			WorkspaceItem workSpaceItem = ws.getItem(itemId);
-			Properties properties = workSpaceItem.getProperties();
-
-			return properties.getProperties();
-
-		} catch (Throwable e) {
-			logger.error(e.getLocalizedMessage());
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-		}
-
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            User
-	 * @param itemId
-	 *            Item id
-	 * @return InputStream
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static InputStream getInputStreamForItemOnWorkspace(String user, String itemId) throws ServiceException {
-		Workspace ws;
-		try {
-			ws = HomeLibrary.getUserWorkspace(user);
-
-			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());
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-		}
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            User
-	 * @param wi
-	 *            WorkspaceItem
-	 * @return InputStream
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	private static InputStream getInputStream(String user, WorkspaceItem wi) 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) wi);
-			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);
-		}
-
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            User
-	 * @param itemId
-	 *            Item id
-	 * @return link
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static String getPublicLink(String user, String itemId) throws ServiceException {
-		Workspace ws;
-		try {
-			ws = HomeLibrary.getUserWorkspace(user);
-
-			WorkspaceItem workSpaceItem = ws.getItem(itemId);
-			if (workSpaceItem.isFolder()) {
-				throw new ServiceException("Attention this is a folder!");
-			}
-
-			return workSpaceItem.getPublicLink(false);
-
-		} catch (Throwable e) {
-			logger.error("Error retrieving public link: " + e.getLocalizedMessage());
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-
-		}
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            user
-	 * @param folderId
-	 *            folder id
-	 * @return File
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static File zipFolder(String user, String folderId) throws ServiceException {
-		Workspace ws;
-		try {
-			logger.debug("zipFolder: [user=" + user + ", folderId=" + folderId + "]");
-			ws = HomeLibrary.getUserWorkspace(user);
-
-			WorkspaceItem workSpaceItem = ws.getItem(folderId);
-			if (!workSpaceItem.isFolder()) {
-				throw new ServiceException("Item is not valid folder!");
-			}
-
-			WorkspaceFolder folder = (WorkspaceFolder) workSpaceItem;
-
-			File fileZip = ZipUtil.zipFolder(folder);
-
-			return fileZip;
-
-		} catch (Throwable e) {
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-		}
-
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            user
-	 * @param itemName
-	 *            item name
-	 * @return workspace item
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static WorkspaceItem getItemInRootFolderOnWorkspace(String user, String itemName) throws ServiceException {
-		Workspace ws;
-		try {
-			ws = HomeLibrary.getUserWorkspace(user);
-
-			WorkspaceItem item = ws.find(itemName, ws.getRoot().getId());
-
-			return item;
-
-		} catch (Throwable e) {
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-		}
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            user
-	 * @param folderId
-	 *            folder id
-	 * @param itemName
-	 *            item name
-	 * @return workspace item
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static WorkspaceItem getItemInFolderOnWorkspace(String user, String folderId, String itemName)
-			throws ServiceException {
-		Workspace ws;
-		try {
-			ws = HomeLibrary.getUserWorkspace(user);
-
-			WorkspaceItem item = ws.find(itemName, folderId);
-
-			return item;
-
-		} catch (Throwable e) {
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-		}
-	}
-
-	/**
-	 * 
-	 * @param user
-	 *            user
-	 * @param itemId
-	 *            item id
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static void deleteItem(String user, String itemId) throws ServiceException {
-		Workspace ws;
-		try {
-			logger.debug("User: " + user + ", ItemId:" + itemId);
-			ws = HomeLibrary.getUserWorkspace(user);
-
-			ws.removeItems(itemId);
-
-			return;
-		} catch (Throwable e) {
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage());
-
-		}
-
-	}
-
-	/**
-	 * 
-	 * @param is
-	 *            input stream
-	 * @return public link
-	 * @throws ServiceException
-	 *             service exception
-	 */
-	public static String saveOnStorageInTemporalFile(InputStream is) throws ServiceException {
-		try {
-			logger.debug("SaveOnStorageInTemporalFile()");
-			SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
-			Double v = Math.random() * 10000;
-			String tempFile = "P_" + sdf.format(new Date()) + "_" + v.intValue() + ".xml";
-			String remotePath = "/DataMiner/AlgoritmsParameters/" + tempFile;
-			IClient client = new StorageClient("DataAnalysis", "DataMiner", "DataMiner", AccessType.PUBLIC,
-					MemoryType.VOLATILE).getClient();
-			String storageId = client.put(true).LFile(is).RFile(remotePath);
-			logger.debug("Storage id: " + storageId);
-			String publicLink = client.getHttpUrl().RFile(remotePath);
-			logger.debug("Storage public link: " + publicLink);
-			return publicLink;
-
-		} catch (Throwable e) {
-			logger.error(e.getLocalizedMessage());
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage(), e);
-		}
-	}
-
-}

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/server/util/TableReader.java

@@ -12,6 +12,7 @@ import net.sf.csv4j.CSVReader;
 import org.gcube.data.analysis.dataminermanagercl.server.util.ServiceCredentials;
 import org.gcube.data.analysis.dataminermanagercl.shared.data.ColumnItem;
 import org.gcube.data.analysis.dataminermanagercl.shared.data.TableItemSimple;
+import org.gcube.portlets.widgets.dataminermanagerwidget.server.storage.StorageUtil;
 import org.gcube.portlets.widgets.dataminermanagerwidget.shared.exception.ServiceException;
 import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.slf4j.Logger;
@@ -35,15 +36,16 @@ 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().name());
 		ArrayList<ColumnItem> columnItemList=new ArrayList<ColumnItem>();

src/main/java/org/gcube/portlets/widgets/dataminermanagerwidget/shared/Constants.java

@@ -18,7 +18,7 @@ public class Constants {
 	
 	public static final String DEFAULT_USER = "giancarlo.panichi";
 	public final static String DEFAULT_SCOPE = "/gcube/devNext/NextNext";
-	public final static String DEFAULT_TOKEN = "ae1208f0-210d-47c9-9b24-d3f2dfcce05f-98187548";
+	public final static String DEFAULT_TOKEN = "";
 	
 	public static final String DEFAULT_ROLE = "OrganizationMember";
 	// public final static String DEFAULT_SCOPE = "/gcube/devNext";

src/main/resources/org/gcube/portlets/widgets/dataminermanagerwidget/dataminermanagerwidget.gwt.xml

@@ -20,7 +20,12 @@
 	<!-- OpenLayer Basic Widgets -->
 	<inherits
 		name='org.gcube.portlets.widgets.openlayerbasicwidgets.olbasicwidgets' />
-
+	
+	<!-- NetCDF Basic Widgets -->
+	<inherits
+		name='org.gcube.portlets.widgets.netcdfbasicwidgets.netcdfbasicwidgets' />
+	
+	
 	<!-- DataMiner Manager CL -->
 	<inherits
 		name='org.gcube.data.analysis.dataminermanagercl.dataminermanagercl' />

src/main/webapp/WEB-INF/web.xml

@@ -28,6 +28,11 @@
 		<servlet-name>workspaceUploadServletStream</servlet-name>
 		<servlet-class>org.gcube.portlets.widgets.workspaceuploader.server.WorkspaceUploadServletStream</servlet-class>
 	</servlet>
+	<servlet>
+		<servlet-name>NetCDFBasicWidgetService</servlet-name>
+		<servlet-class>org.gcube.portlets.widgets.netcdfbasicwidgets.server.NetCDFBasicWidgetServiceImpl</servlet-class>
+	</servlet>
+	
 	
 	
 	<servlet-mapping>
@@ -54,6 +59,11 @@
 		<servlet-name>workspaceUploadServletStream</servlet-name>
 		<url-pattern>/dataminermanagerwidget/workspaceUploadServletStream</url-pattern>
 	</servlet-mapping>
+	<servlet-mapping>
+		<servlet-name>NetCDFBasicWidgetService</servlet-name>
+		<url-pattern>/dataminermanagerwidget/netcdfservice</url-pattern>
+	</servlet-mapping>
+	
 	
 	<welcome-file-list>
 		<welcome-file>DataMinerManagerWidget.html</welcome-file>