2521: Explore the possibility to port the StatMan interface onto Dataminer

https://support.d4science.org/issues/2521

Added shows results for computations that are successful

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/data-miner-manager@128532 82a268e6-3cf1-43bd-a215-b396298e98cf

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

@@ -2,22 +2,28 @@ package org.gcube.portlets.user.dataminermanager.client;
 
 import java.util.List;
 
-import org.gcube.portlets.user.dataminermanager.client.bean.ComputationItem;
 import org.gcube.portlets.user.dataminermanager.client.bean.OperatorsClassification;
+import org.gcube.portlets.user.dataminermanager.client.bean.output.Resource;
 import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
 import org.gcube.portlets.user.dataminermanager.client.events.CancelComputationExecutionRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.DataMinerWorkAreaEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.DataMinerWorkAreaRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.DeleteItemRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.MenuEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.MenuSwitchEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.OperatorsClassificationEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.OperatorsClassificationRequestEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputResourceEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputResourceRequestEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputShowEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputShowRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.RefreshDataMinerWorkAreaEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.ResubmitComputationExecutionEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.ResubmitComputationExecutionRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.SessionExpiredEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.StartComputationExecutionEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.StartComputationExecutionRequestEvent;
+import org.gcube.portlets.user.dataminermanager.client.monitor.StatusMonitor;
 import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
 import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaElementType;
 import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaEventType;
@@ -44,6 +50,7 @@ public class DataMinerManagerController {
 	private DataMinerWorkArea dataMinerWorkArea;
 	private List<OperatorsClassification> operatorsClassifications;
 	private MenuType currentVisualization;
+	private StatusMonitor monitor;
 
 	public DataMinerManagerController() {
 		init();
@@ -73,18 +80,15 @@ public class DataMinerManagerController {
 	}
 
 	/*
-	private void sessionExpiredShowDelayed() {
-		Timer timeoutTimer = new Timer() {
-			public void run() {
-				sessionExpiredShow();
-
-			}
-		};
-		int TIMEOUT = 3; // 3 second timeout
-
-		timeoutTimer.schedule(TIMEOUT * 1000); // timeout is in milliseconds
-
-	}*/
+	 * private void sessionExpiredShowDelayed() { Timer timeoutTimer = new
+	 * Timer() { public void run() { sessionExpiredShow();
+	 * 
+	 * } }; int TIMEOUT = 3; // 3 second timeout
+	 * 
+	 * timeoutTimer.schedule(TIMEOUT * 1000); // timeout is in milliseconds
+	 * 
+	 * }
+	 */
 
 	private void bind() {
 
@@ -156,6 +160,39 @@ public class DataMinerManagerController {
 
 						});
 
+		EventBusProvider.INSTANCE
+				.addHandler(
+						OutputResourceRequestEvent.TYPE,
+						new OutputResourceRequestEvent.OutputResourceRequestEventHandler() {
+
+							@Override
+							public void onOutputRequest(
+									OutputResourceRequestEvent event) {
+								Log.debug("Catch OutputResourceRequestEvent: "
+										+ event);
+								manageOutputResourceRequestEvent(event);
+
+							}
+
+						});
+		
+		EventBusProvider.INSTANCE
+		.addHandler(
+				OutputShowRequestEvent.TYPE,
+				new OutputShowRequestEvent.OutputShowRequestEventHandler() {
+
+				
+					@Override
+					public void onOutputShowRequest(OutputShowRequestEvent event) {
+						Log.debug("Catch OutputShowRequestEvent: "
+								+ event);
+						manageOutputShowRequestEvent(event);
+
+						
+					}
+
+				});
+
 		EventBusProvider.INSTANCE
 				.addHandler(
 						OperatorsClassificationRequestEvent.TYPE,
@@ -184,9 +221,26 @@ public class DataMinerManagerController {
 
 				});
 
+		EventBusProvider.INSTANCE
+				.addHandler(
+						DataMinerWorkAreaRequestEvent.TYPE,
+						new DataMinerWorkAreaRequestEvent.DataMinerWorkAreaRequestEventHandler() {
+
+							@Override
+							public void onRequest(
+									DataMinerWorkAreaRequestEvent event) {
+								Log.debug("Catch DataMinerWorkAreaRequestEvent: "
+										+ event);
+								retrieveDataMinerWorkArea();
+
+							}
+
+						});
+
 	}
 
 	private void callHello() {
+
 		DataMinerPortletServiceAsync.INSTANCE
 				.hello(new AsyncCallback<UserInfo>() {
 
@@ -233,36 +287,39 @@ public class DataMinerManagerController {
 
 	private void startComputationRequest(
 			final StartComputationExecutionRequestEvent event) {
-
+		monitor = new StatusMonitor();
 		DataMinerPortletServiceAsync.INSTANCE.startComputation(event.getOp(),
 				new AsyncCallback<ComputationId>() {
-					@Override
-					public void onSuccess(ComputationId computationId) {
-						if (computationId == null)
-							UtilsGXT3.alert("Error",
-									"Failed to start computation "
-											+ event.getOp().getName()
-											+ ", the computation id is null!");
-						else {
-							startComputation(computationId,
-									event.getComputationStatusPanelIndex());
-						}
-					}
 
 					@Override
 					public void onFailure(Throwable caught) {
+						monitor.hide();
 						if (caught instanceof ExpiredSessionServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
 									.fireEvent(new SessionExpiredEvent());
 						} else {
 							UtilsGXT3.alert("Error",
-									"Failed to start computation "
+									"Failed start computation "
 											+ event.getOp().getName() + "! "
 											+ caught.getLocalizedMessage());
 							caught.printStackTrace();
 						}
 					}
+
+					@Override
+					public void onSuccess(ComputationId computationId) {
+						monitor.hide();
+						if (computationId == null)
+							UtilsGXT3.alert("Error",
+									"Failed start computation "
+											+ event.getOp().getName()
+											+ ", the computation id is null!");
+						else {
+							startComputation(computationId,
+									event.getComputationStatusPanelIndex());
+						}
+					}
 				});
 
 	}
@@ -277,12 +334,13 @@ public class DataMinerManagerController {
 	private void cancelComputationRequest(
 			CancelComputationExecutionRequestEvent event) {
 		final ComputationId computationId = event.getComputationId();
-
+		monitor = new StatusMonitor();
 		DataMinerPortletServiceAsync.INSTANCE.cancelComputation(computationId,
 				new AsyncCallback<String>() {
 
 					@Override
 					public void onFailure(Throwable caught) {
+						monitor.hide();
 						if (caught instanceof ExpiredSessionServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
@@ -298,6 +356,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onSuccess(String result) {
+						monitor.hide();
 						Log.debug("Computation Deleted!");
 
 					}
@@ -306,11 +365,13 @@ public class DataMinerManagerController {
 
 	private void resubmitComputationRequest(
 			final ResubmitComputationExecutionRequestEvent event) {
+		monitor = new StatusMonitor();
 		DataMinerPortletServiceAsync.INSTANCE.resubmit(
 				event.getItemDescription(), new AsyncCallback<ComputationId>() {
 
 					@Override
 					public void onFailure(Throwable caught) {
+						monitor.hide();
 						if (caught instanceof ExpiredSessionServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session!");
 							EventBusProvider.INSTANCE
@@ -325,6 +386,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onSuccess(ComputationId result) {
+						monitor.hide();
 						if (result == null)
 							UtilsGXT3
 									.alert("Error",
@@ -338,10 +400,8 @@ public class DataMinerManagerController {
 	}
 
 	private void resubmitComputation(ComputationId computationId) {
-		ComputationItem computationItem = new ComputationItem(computationId,
-				null);
 		ResubmitComputationExecutionEvent event = new ResubmitComputationExecutionEvent(
-				computationItem);
+				computationId);
 		EventBusProvider.INSTANCE.fireEvent(event);
 	}
 
@@ -436,11 +496,13 @@ public class DataMinerManagerController {
 	}
 
 	private void retrieveDataMinerWorkArea() {
+		monitor = new StatusMonitor();
 		DataMinerPortletServiceAsync.INSTANCE
 				.getDataMinerWorkArea(new AsyncCallback<DataMinerWorkArea>() {
 
 					@Override
 					public void onFailure(Throwable caught) {
+						monitor.hide();
 						if (caught instanceof ExpiredSessionServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 							EventBusProvider.INSTANCE
@@ -454,6 +516,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onSuccess(DataMinerWorkArea result) {
+						monitor.hide();
 						Log.debug("DataMinerWorkArea: " + result);
 						fireDataMinerWorkAreaEventRetrieved(result);
 
@@ -471,11 +534,13 @@ public class DataMinerManagerController {
 	}
 
 	private void deleteItemRequest(final DeleteItemRequestEvent event) {
+		monitor = new StatusMonitor();
 		DataMinerPortletServiceAsync.INSTANCE.deleteItem(
 				event.getItemDescription(), new AsyncCallback<Void>() {
 
 					@Override
 					public void onFailure(Throwable caught) {
+						monitor.hide();
 						if (caught instanceof ExpiredSessionServiceException) {
 							UtilsGXT3.alert("Error", "Expired Session");
 							EventBusProvider.INSTANCE
@@ -489,6 +554,7 @@ public class DataMinerManagerController {
 
 					@Override
 					public void onSuccess(Void result) {
+						monitor.hide();
 						Log.debug("Deleted Item!");
 						fireRefreshDataMinerWorkAreaEvent(event
 								.getDataMinerWorkAreaElementType());
@@ -507,4 +573,93 @@ public class DataMinerManagerController {
 
 	}
 
-}
+	private void manageOutputResourceRequestEvent(
+			OutputResourceRequestEvent event) {
+		if (event == null) {
+			UtilsGXT3.alert("Error", "Invalid output request!");
+		} else {
+			if (event.getComputationId() == null
+					|| event.getComputationId().getId() == null
+					|| event.getComputationId().getId().isEmpty()) {
+				UtilsGXT3.alert(
+						"Error",
+						"Invalid output request, computation id: "
+								+ event.getComputationId());
+			} else {
+				monitor = new StatusMonitor();
+				DataMinerPortletServiceAsync.INSTANCE
+						.getResourceByComputationId(event.getComputationId(),
+								new AsyncCallback<Resource>() {
+									@Override
+									public void onSuccess(Resource resource) {
+										monitor.hide();
+										fireOutputResourceEvent(resource);
+									}
+
+									@Override
+									public void onFailure(Throwable caught) {
+										monitor.hide();
+										Log.error("Error in getResourceByComputationId: "
+												+ caught.getLocalizedMessage());
+										UtilsGXT3
+												.alert("Error",
+														"Impossible to retrieve output info. "
+																+ caught.getLocalizedMessage());
+
+									}
+								});
+			}
+		}
+	}
+
+	private void fireOutputResourceEvent(Resource resource) {
+		OutputResourceEvent event = new OutputResourceEvent(resource);
+		EventBusProvider.INSTANCE.fireEvent(event);
+
+	}
+
+	private void manageOutputShowRequestEvent(OutputShowRequestEvent event) {
+		if (event == null) {
+			UtilsGXT3.alert("Error", "Invalid show output request!");
+		} else {
+			if (event.getItemDescription() == null
+					|| event.getItemDescription().getId() == null
+					|| event.getItemDescription().getId().isEmpty()) {
+				UtilsGXT3.alert(
+						"Error",
+						"Invalid show output request, item description: "
+								+ event.getItemDescription());
+			} else {
+				monitor = new StatusMonitor();
+				DataMinerPortletServiceAsync.INSTANCE
+						.getResourceByComputationItem(
+								event.getItemDescription(),
+								new AsyncCallback<Resource>() {
+									@Override
+									public void onSuccess(Resource resource) {
+										monitor.hide();
+										fireOutputShowEvent(resource);
+									}
+
+									@Override
+									public void onFailure(Throwable caught) {
+										monitor.hide();
+										Log.error("Error in getResourceByComputationItem: "
+												+ caught.getLocalizedMessage());
+										UtilsGXT3
+												.alert("Error",
+														"Impossible to retrieve output info. "
+																+ caught.getLocalizedMessage());
+
+									}
+								});
+			}
+		}
+	}
+
+	protected void fireOutputShowEvent(Resource resource) {
+		OutputShowEvent event = new OutputShowEvent(resource);
+		EventBusProvider.INSTANCE.fireEvent(event);
+
+	}
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/events/DataMinerWorkAreaRequestEvent.java

@@ -0,0 +1,70 @@
+package org.gcube.portlets.user.dataminermanager.client.events;
+
+import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaRequestEventType;
+
+import com.google.gwt.event.shared.EventHandler;
+import com.google.gwt.event.shared.GwtEvent;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.event.shared.HasHandlers;
+
+/**
+ * Data Miner Work Area Request Event
+ * 
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public class DataMinerWorkAreaRequestEvent
+		extends
+		GwtEvent<DataMinerWorkAreaRequestEvent.DataMinerWorkAreaRequestEventHandler> {
+
+	public static Type<DataMinerWorkAreaRequestEventHandler> TYPE = new Type<DataMinerWorkAreaRequestEventHandler>();
+	private DataMinerWorkAreaRequestEventType dataMinerWorkAreaRequestEventType;
+
+	public interface DataMinerWorkAreaRequestEventHandler extends EventHandler {
+		void onRequest(DataMinerWorkAreaRequestEvent event);
+	}
+
+	public interface HasDataMinerWorkAreaRequestEventHandler extends
+			HasHandlers {
+		public HandlerRegistration addDataMinerWorkAreaRequestEventHandler(
+				DataMinerWorkAreaRequestEventHandler handler);
+	}
+
+	public DataMinerWorkAreaRequestEvent(
+			DataMinerWorkAreaRequestEventType dataMinerWorkAreaRequestEventType) {
+		this.dataMinerWorkAreaRequestEventType = dataMinerWorkAreaRequestEventType;
+
+	}
+
+	@Override
+	protected void dispatch(DataMinerWorkAreaRequestEventHandler handler) {
+		handler.onRequest(this);
+	}
+
+	@Override
+	public Type<DataMinerWorkAreaRequestEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	public static Type<DataMinerWorkAreaRequestEventHandler> getType() {
+		return TYPE;
+	}
+
+	public static void fire(HasHandlers source,
+			DataMinerWorkAreaRequestEvent event) {
+		source.fireEvent(event);
+	}
+
+	public DataMinerWorkAreaRequestEventType getDataMinerWorkAreaRequestEventType() {
+		return dataMinerWorkAreaRequestEventType;
+	}
+
+	@Override
+	public String toString() {
+		return "DataMinerWorkAreaRequestEvent [dataMinerWorkAreaRequestEventType="
+				+ dataMinerWorkAreaRequestEventType + "]";
+	}
+
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/events/OutputResourceEvent.java

@@ -0,0 +1,63 @@
+package org.gcube.portlets.user.dataminermanager.client.events;
+
+import org.gcube.portlets.user.dataminermanager.client.bean.output.Resource;
+
+import com.google.gwt.event.shared.EventHandler;
+import com.google.gwt.event.shared.GwtEvent;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.event.shared.HasHandlers;
+
+/**
+ * Output Resource Event
+ * 
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public class OutputResourceEvent extends
+		GwtEvent<OutputResourceEvent.OutputResourceEventHandler> {
+	public static Type<OutputResourceEventHandler> TYPE = new Type<OutputResourceEventHandler>();
+	private Resource resource;
+
+	public interface OutputResourceEventHandler extends EventHandler {
+		void onOutput(OutputResourceEvent event);
+	}
+
+	public interface HasOutputResourceEventHandler extends HasHandlers {
+		public HandlerRegistration addOutputResourceEventHandler(
+				OutputResourceEventHandler handler);
+	}
+
+	public OutputResourceEvent(Resource resource) {
+		this.resource = resource;
+	}
+
+	@Override
+	protected void dispatch(OutputResourceEventHandler handler) {
+		handler.onOutput(this);
+	}
+
+	@Override
+	public Type<OutputResourceEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	public static Type<OutputResourceEventHandler> getType() {
+		return TYPE;
+	}
+
+	public static void fire(HasHandlers source, OutputResourceEvent event) {
+		source.fireEvent(event);
+	}
+
+	public Resource getResource() {
+		return resource;
+	}
+
+	@Override
+	public String toString() {
+		return "OutputResourceEvent [resource=" + resource + "]";
+	}
+
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/events/OutputResourceRequestEvent.java

@@ -0,0 +1,65 @@
+package org.gcube.portlets.user.dataminermanager.client.events;
+
+import org.gcube.portlets.user.dataminermanager.shared.data.ComputationId;
+
+import com.google.gwt.event.shared.EventHandler;
+import com.google.gwt.event.shared.GwtEvent;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.event.shared.HasHandlers;
+
+/**
+ * Output Resource Request Event
+ * 
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public class OutputResourceRequestEvent extends
+		GwtEvent<OutputResourceRequestEvent.OutputResourceRequestEventHandler> {
+
+	public static Type<OutputResourceRequestEventHandler> TYPE = new Type<OutputResourceRequestEventHandler>();
+	private ComputationId computationId;
+
+	public interface OutputResourceRequestEventHandler extends EventHandler {
+		void onOutputRequest(OutputResourceRequestEvent event);
+	}
+
+	public interface HasOutputResourceRequestEventHandler extends HasHandlers {
+		public HandlerRegistration addOutputResourceRequestEventHandler(
+				OutputResourceRequestEventHandler handler);
+	}
+
+	public OutputResourceRequestEvent(ComputationId computationId) {
+		this.computationId = computationId;
+	}
+
+	@Override
+	protected void dispatch(OutputResourceRequestEventHandler handler) {
+		handler.onOutputRequest(this);
+	}
+
+	@Override
+	public Type<OutputResourceRequestEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	public static Type<OutputResourceRequestEventHandler> getType() {
+		return TYPE;
+	}
+
+	public static void fire(HasHandlers source, OutputResourceRequestEvent event) {
+		source.fireEvent(event);
+	}
+
+	public ComputationId getComputationId() {
+		return computationId;
+	}
+
+	@Override
+	public String toString() {
+		return "OutputResourceRequestEvent [computationId=" + computationId
+				+ "]";
+	}
+
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/events/OutputShowEvent.java

@@ -0,0 +1,64 @@
+package org.gcube.portlets.user.dataminermanager.client.events;
+
+import org.gcube.portlets.user.dataminermanager.client.bean.output.Resource;
+
+import com.google.gwt.event.shared.EventHandler;
+import com.google.gwt.event.shared.GwtEvent;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.event.shared.HasHandlers;
+
+/**
+ * Output Show Event
+ * 
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public class OutputShowEvent extends
+		GwtEvent<OutputShowEvent.OutputShowEventHandler> {
+
+	public static Type<OutputShowEventHandler> TYPE = new Type<OutputShowEventHandler>();
+	private Resource resource;
+
+	public interface OutputShowEventHandler extends EventHandler {
+		void onOutputShow(OutputShowEvent event);
+	}
+
+	public interface HasOutputShowResourceEventHandler extends HasHandlers {
+		public HandlerRegistration addOutputShowResourceEventHandler(
+				OutputShowEventHandler handler);
+	}
+
+	public OutputShowEvent(Resource resource) {
+		this.resource = resource;
+	}
+
+	@Override
+	protected void dispatch(OutputShowEventHandler handler) {
+		handler.onOutputShow(this);
+	}
+
+	@Override
+	public Type<OutputShowEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	public static Type<OutputShowEventHandler> getType() {
+		return TYPE;
+	}
+
+	public static void fire(HasHandlers source, OutputShowEvent event) {
+		source.fireEvent(event);
+	}
+
+	public Resource getResource() {
+		return resource;
+	}
+
+	@Override
+	public String toString() {
+		return "OutputShowEvent [resource=" + resource + "]";
+	}
+
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/events/OutputShowRequestEvent.java

@@ -0,0 +1,65 @@
+package org.gcube.portlets.user.dataminermanager.client.events;
+
+import org.gcube.portlets.user.dataminermanager.shared.workspace.ItemDescription;
+
+import com.google.gwt.event.shared.EventHandler;
+import com.google.gwt.event.shared.GwtEvent;
+import com.google.gwt.event.shared.HandlerRegistration;
+import com.google.gwt.event.shared.HasHandlers;
+
+/**
+ * Output Show Request Event
+ * 
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public class OutputShowRequestEvent extends
+		GwtEvent<OutputShowRequestEvent.OutputShowRequestEventHandler> {
+
+	public static Type<OutputShowRequestEventHandler> TYPE = new Type<OutputShowRequestEventHandler>();
+	private ItemDescription itemDescription;
+
+	public interface OutputShowRequestEventHandler extends EventHandler {
+		void onOutputShowRequest(OutputShowRequestEvent event);
+	}
+
+	public interface HasOutputShowResourceRequestEventHandler extends HasHandlers {
+		public HandlerRegistration addOutputShowResourceRequestEventHandler(
+				OutputShowRequestEventHandler handler);
+	}
+
+	public OutputShowRequestEvent(ItemDescription itemDescription) {
+		this.itemDescription = itemDescription;
+	}
+
+	@Override
+	protected void dispatch(OutputShowRequestEventHandler handler) {
+		handler.onOutputShowRequest(this);
+	}
+
+	@Override
+	public Type<OutputShowRequestEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	public static Type<OutputShowRequestEventHandler> getType() {
+		return TYPE;
+	}
+
+	public static void fire(HasHandlers source, OutputShowRequestEvent event) {
+		source.fireEvent(event);
+	}
+
+	public ItemDescription getItemDescription() {
+		return itemDescription;
+	}
+
+	@Override
+	public String toString() {
+		return "OutputShowRequestEvent [itemDescription=" + itemDescription
+				+ "]";
+	}
+
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/events/ResubmitComputationExecutionEvent.java

@@ -1,6 +1,6 @@
 package org.gcube.portlets.user.dataminermanager.client.events;
 
-import org.gcube.portlets.user.dataminermanager.client.bean.ComputationItem;
+import org.gcube.portlets.user.dataminermanager.shared.data.ComputationId;
 
 import com.google.gwt.event.shared.EventHandler;
 import com.google.gwt.event.shared.GwtEvent;
@@ -20,7 +20,7 @@ public class ResubmitComputationExecutionEvent
 		GwtEvent<ResubmitComputationExecutionEvent.ResubmitComputationExecutionEventHandler> {
 
 	public static Type<ResubmitComputationExecutionEventHandler> TYPE = new Type<ResubmitComputationExecutionEventHandler>();
-	private ComputationItem computationItem;
+	private ComputationId computationId;
 
 	public interface ResubmitComputationExecutionEventHandler extends
 			EventHandler {
@@ -33,8 +33,8 @@ public class ResubmitComputationExecutionEvent
 				ResubmitComputationExecutionEventHandler handler);
 	}
 
-	public ResubmitComputationExecutionEvent(ComputationItem computationItem) {
-		this.computationItem = computationItem;
+	public ResubmitComputationExecutionEvent(ComputationId computationId) {
+		this.computationId = computationId;
 	}
 
 	@Override
@@ -56,14 +56,16 @@ public class ResubmitComputationExecutionEvent
 		source.fireEvent(event);
 	}
 
-	public ComputationItem getComputationItem() {
-		return computationItem;
+	public ComputationId getComputationId() {
+		return computationId;
 	}
 
 	@Override
 	public String toString() {
-		return "ResubmitComputationExecutionEvent [computationItem="
-				+ computationItem + "]";
+		return "ResubmitComputationExecutionEvent [computationId="
+				+ computationId + "]";
 	}
 
+	
+	
 }

src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationExecutionPanel.java

@@ -6,6 +6,8 @@ import java.util.List;
 import org.gcube.portlets.user.dataminermanager.client.DataMinerManager;
 import org.gcube.portlets.user.dataminermanager.client.bean.Operator;
 import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputResourceEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputShowEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.ResubmitComputationExecutionEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.StartComputationExecutionEvent;
 import org.gcube.portlets.user.dataminermanager.client.events.StartComputationExecutionRequestEvent;
@@ -96,12 +98,30 @@ public class ComputationExecutionPanel extends FramedPanel {
 							}
 
 						});
+		
+		EventBusProvider.INSTANCE
+		.addHandler(
+				OutputShowEvent.getType(),
+				new OutputShowEvent.OutputShowEventHandler() {
+
+					@Override
+					public void onOutputShow(OutputShowEvent event) {
+						showOutput(event);
+						
+					}
+
+				});
+		
+		
+		
 	}
 
+	
+
 	public void startNewComputation(final Operator operator) {
 		Log.debug("Computation Panel: start new computation ");
 		ComputationStatusPanel statusPanel = new ComputationStatusPanel(
-				operator);
+				operator.getName());
 		computationStatusPanels.add(statusPanel);
 		int index = computationStatusPanels.indexOf(statusPanel);
 		statusPanel.setItemId("ComputationStatusPanel" + String.valueOf(index));
@@ -141,9 +161,9 @@ public class ComputationExecutionPanel extends FramedPanel {
 		}
 	}
 
-	public void resubmitComputation(ResubmitComputationExecutionEvent event) {
+	private void resubmitComputation(ResubmitComputationExecutionEvent event) {
 		final ComputationStatusPanel statusPanel = new ComputationStatusPanel(
-				event.getComputationItem().getOperator());
+				event.getComputationId().getOperatorName());
 		computationStatusPanels.add(statusPanel);
 		if (v.getWidgetCount() == 0) {
 			v.add(statusPanel, new VerticalLayoutData(1, -1, new Margins(20)));
@@ -153,13 +173,32 @@ public class ComputationExecutionPanel extends FramedPanel {
 		}
 		removeAllButton.setEnabled(true);
 
-		statusPanel.computationStarted(event.getComputationItem()
-				.getComputationId());
+		statusPanel.computationStarted(event.getComputationId());
 
 		forceLayout();
 
 	}
 
+	
+	private void showOutput(OutputShowEvent event) {
+		/*
+		final ComputationStatusPanel statusPanel = new ComputationStatusPanel(
+				event.getComputationId().getOperatorName());
+		computationStatusPanels.add(statusPanel);
+		if (v.getWidgetCount() == 0) {
+			v.add(statusPanel, new VerticalLayoutData(1, -1, new Margins(20)));
+		} else {
+			v.insert(statusPanel, 0, new VerticalLayoutData(1, -1, new Margins(
+					20)));
+		}
+		removeAllButton.setEnabled(true);
+
+		statusPanel.computationStarted(event.getComputationId());
+
+		forceLayout();
+		*/
+	}
+	
 	/**
 	 * 
 	 */

src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationOutputPanel.java

@@ -14,8 +14,9 @@ import org.gcube.portlets.user.dataminermanager.client.bean.output.ObjectResourc
 import org.gcube.portlets.user.dataminermanager.client.bean.output.Resource;
 import org.gcube.portlets.user.dataminermanager.client.bean.output.Resource.ResourceType;
 import org.gcube.portlets.user.dataminermanager.client.bean.output.TableResource;
-import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
-import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
+import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputResourceEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.OutputResourceRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.widgets.ImagesViewer;
 import org.gcube.portlets.user.dataminermanager.client.widgets.ResourceViewer;
 import org.gcube.portlets.user.dataminermanager.shared.data.ComputationId;
@@ -24,7 +25,6 @@ import com.allen_sauer.gwt.log.client.Log;
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.safehtml.shared.SafeHtml;
 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
-import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.sencha.gxt.core.client.XTemplates;
 import com.sencha.gxt.core.client.util.Margins;
 import com.sencha.gxt.widget.core.client.button.TextButton;
@@ -49,40 +49,44 @@ public class ComputationOutputPanel extends SimpleContainer {
 		super();
 		this.computationId = computationId;
 		Log.debug("ComputationOutputPanel");
+		bind();
 		init();
+		
 	}
 
 	private void init() {
 		v = new VerticalLayoutContainer();
 		add(v);
-
-		// request resource by ComputationId
-		DataMinerPortletServiceAsync.INSTANCE.getResourceByComputationId(computationId,
-				new AsyncCallback<Resource>() {
-					@Override
-					public void onSuccess(Resource result) {
-						showOutputInfo(result);
-					}
-
-					@Override
-					public void onFailure(Throwable caught) {
-						Log.error("Error in getResourceByComputationId: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert(
-								"Error",
-								"Impossible to retrieve output info. "
-										+ caught.getLocalizedMessage());
-
-					}
-				});
+		OutputResourceRequestEvent event=new OutputResourceRequestEvent(computationId);
+		EventBusProvider.INSTANCE.fireEvent(event);
 	}
+	
+	private void bind(){
+		EventBusProvider.INSTANCE.addHandler(
+			OutputResourceEvent.TYPE,
+			new OutputResourceEvent.OutputResourceEventHandler() {
 
+				@Override
+				public void onOutput(
+						OutputResourceEvent event) {
+					Log.debug("Catch OutputResourceEvent: "
+							+ event);
+					showOutputInfo(event);
+
+				}
+			});
+	
+	}
+	
+	
+	
 	/**
 	 * 
 	 * @param resource
 	 */
-	private void showOutputInfo(Resource resource) {
+	private void showOutputInfo(OutputResourceEvent event) {
 		try {
+			Resource resource=event.getResource();
 			Log.info("Show Output Info on: " + resource);
 			if (resource == null)
 				return;

src/main/java/org/gcube/portlets/user/dataminermanager/client/experiments/ComputationStatusPanel.java

@@ -7,12 +7,13 @@ import java.util.Date;
 
 import org.gcube.portlets.user.dataminermanager.client.bean.ComputationStatus;
 import org.gcube.portlets.user.dataminermanager.client.bean.ComputationStatus.Status;
-import org.gcube.portlets.user.dataminermanager.client.bean.Operator;
 import org.gcube.portlets.user.dataminermanager.client.common.EventBusProvider;
 import org.gcube.portlets.user.dataminermanager.client.custom.progress.GreenProgressBar;
 import org.gcube.portlets.user.dataminermanager.client.custom.progress.RedProgressBar;
 import org.gcube.portlets.user.dataminermanager.client.events.CancelComputationExecutionRequestEvent;
+import org.gcube.portlets.user.dataminermanager.client.events.DataMinerWorkAreaRequestEvent;
 import org.gcube.portlets.user.dataminermanager.client.rpc.DataMinerPortletServiceAsync;
+import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaRequestEventType;
 import org.gcube.portlets.user.dataminermanager.client.util.UtilsGXT3;
 import org.gcube.portlets.user.dataminermanager.shared.Constants;
 import org.gcube.portlets.user.dataminermanager.shared.data.ComputationId;
@@ -35,193 +36,231 @@ import com.sencha.gxt.widget.core.client.info.Info;
 
 /**
  * 
- * @author Giancarlo Panichi
- * email: <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
+ * @author Giancarlo Panichi email: <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
  *
  */
 public class ComputationStatusPanel extends SimpleContainer {
-	
+
 	private ProgressBar progressBar;
 	private ComputationId computationId;
-	private Operator operator;
-	private boolean terminated=false;
-    private ComputationTimer timer = new ComputationTimer();
+	private String operatorName;
+	private boolean terminated = false;
+	private ComputationTimer timer = new ComputationTimer();
 	private TextButton cancelComputationBtn;
 	private VerticalLayoutContainer vert;
-	
+
 	/**
 	 * 
 	 */
-	public ComputationStatusPanel(Operator operator) {
+	public ComputationStatusPanel(String operatorName) {
 		super();
-	    this.operator=operator;
+		this.operatorName = operatorName;
 		init();
 		create();
 	}
 
-	private void init(){
+	private void init() {
 		setStylePrimaryName("computationStatusPanel");
-	
-		
+
 	}
-	
-	private void create(){
-		vert=new VerticalLayoutContainer();
-		HtmlLayoutContainer title = new HtmlLayoutContainer("<div class='computationStatusTitle'><p>Computation of <b>" + operator.getName() + "</b></p></div>");
-		HtmlLayoutContainer date = new HtmlLayoutContainer("<div class='computationStatusDate'><p>" + new Date().toString() + "</p></div>");
-		
+
+	private void create() {
+		vert = new VerticalLayoutContainer();
+		HtmlLayoutContainer title = new HtmlLayoutContainer(
+				"<div class='computationStatusTitle'><p>Computation of <b>"
+						+ operatorName + "</b></p></div>");
+		HtmlLayoutContainer date = new HtmlLayoutContainer(
+				"<div class='computationStatusDate'><p>"
+						+ new Date().toString() + "</p></div>");
+
 		vert.add(title, new VerticalLayoutData(-1, -1, new Margins(0)));
-		vert.add(date,new VerticalLayoutData(-1, -1, new Margins(0)));
-		
+		vert.add(date, new VerticalLayoutData(-1, -1, new Margins(0)));
+
 		add(vert);
 		forceLayout();
 	}
-	
+
 	/**
-	 * @param computationId the computationId to set
+	 * @param computationId
+	 *            the computationId to set
 	 */
 	public void computationStarted(ComputationId computationId) {
 		this.computationId = computationId;
-		vert.add(new HtmlLayoutContainer("<p>Created, the id is "+computationId.getId()+" [<a href='"+computationId.getUrlId()+"' >link</a>]</p>"));
+		vert.add(new HtmlLayoutContainer("<p>Created, the id is "
+				+ computationId.getId() + " [<a href='"
+				+ computationId.getUrlId() + "' >link</a>]</p>"));
 		progressBar = new ProgressBar();
-		progressBar.updateProgress(0, "Starting...");		
-		vert.add(progressBar,new VerticalLayoutData(1, -1, new Margins(20)));
-		
+		progressBar.updateProgress(0, "Starting...");
+		vert.add(progressBar, new VerticalLayoutData(1, -1, new Margins(20)));
+
 		cancelComputationBtn = new TextButton("Cancel");
-		
+
 		cancelComputationBtn.addSelectHandler(new SelectHandler() {
-			
+
 			@Override
 			public void onSelect(SelectEvent event) {
 				cancelComputationBtn.disable();
 				cancelComputation();
-				
+
 			}
 		});
-		
-		
-		
-		cancelComputationBtn.getElement().getStyle().setMarginBottom(36, Unit.PX);
 
-		vert.add(cancelComputationBtn,new VerticalLayoutData(-1, -1, new Margins(0)));
+		cancelComputationBtn.getElement().getStyle()
+				.setMarginBottom(36, Unit.PX);
+
+		vert.add(cancelComputationBtn, new VerticalLayoutData(-1, -1,
+				new Margins(0)));
 		forceLayout();
 		timer.scheduleRepeating(Constants.TIME_UPDATE_COMPUTATION_STATUS_PANEL);
 	}
-	
-	
-	private void cancelComputation(){
-		CancelComputationExecutionRequestEvent event=new CancelComputationExecutionRequestEvent(computationId);
+
+	private void cancelComputation() {
+		CancelComputationExecutionRequestEvent event = new CancelComputationExecutionRequestEvent(
+				computationId);
 		EventBusProvider.INSTANCE.fireEvent(event);
 	}
-		
-		
 
 	/**
-	 * @param computationId 
-	 * @param operator 
+	 * @param computationId
+	 * @param operator
 	 * 
 	 */
-	protected void computationTerminated(ComputationId computationId, Operator operator, ComputationStatus computationStatus) {
+	protected void computationTerminated(ComputationId computationId,
+			ComputationStatus computationStatus) {
 		Log.debug("Computation Terminated");
-		Log.debug("Computation Status:"+computationStatus);
+		Log.debug("Computation Status:" + computationStatus);
 		if (terminated == false) {
 			terminated = true;
 			cancelComputationBtn.setVisible(false);
 			if (computationStatus.isComplete()) {
 				Log.debug("Computation is Complete");
-				Info.display("Terminated", "The computation "+computationId.getId()+" of "+operator.getName()+" is terminated correctly.");
-				int index=vert.getWidgetIndex(progressBar);
+				Info.display("Terminated",
+						"The computation " + computationId.getId() + " of "
+								+ computationId.getOperatorName()
+								+ " is terminated correctly.");
+				int index = vert.getWidgetIndex(progressBar);
 				vert.remove(index);
-				//TODO
-				progressBar =new GreenProgressBar();
+				// TODO
+				progressBar = new GreenProgressBar();
 				progressBar.updateProgress(1, "Computation Complete");
-				vert.insert(progressBar, index, new VerticalLayoutData(1, -1, new Margins(20)));
+				vert.insert(progressBar, index, new VerticalLayoutData(1, -1,
+						new Margins(20)));
 				showOutput();
-
+				fireDataMinerWorkAreareRequestUpdate();
 			} else if (computationStatus.isFailed()) {
 				Log.debug("Computation is Failed");
 				String errorMessage;
-				if(computationStatus.getErrResource()==null||computationStatus.getErrResource().getDescription()==null ){
-					errorMessage=new String("Computation Failed!");
+				if (computationStatus.getErrResource() == null
+						|| computationStatus.getErrResource().getDescription() == null) {
+					errorMessage = new String("Computation Failed!");
 				} else {
-					errorMessage=computationStatus.getErrResource().getDescription();
+					errorMessage = computationStatus.getErrResource()
+							.getDescription();
 				}
-				
-				UtilsGXT3.alert("Failed", "The computation "+computationId.getId()+" of "+operator.getName()+" has failed.</br>"
-				+"Message: "+errorMessage);
-				int index=vert.getWidgetIndex(progressBar);
+				Info.display("Failed",
+						"The computation " + computationId.getId() + " of "
+								+ computationId.getOperatorName()
+								+ " is failed.");
+				UtilsGXT3.alert("Failed",
+						"The computation " + computationId.getId() + " of "
+								+ computationId.getOperatorName()
+								+ " has failed.</br>" 
+								+ errorMessage);
+				int index = vert.getWidgetIndex(progressBar);
 				vert.remove(index);
-				//TODO
-				progressBar =new RedProgressBar();
+				// TODO
+				progressBar = new RedProgressBar();
 				progressBar.updateProgress(1, "Computation Fail");
-				progressBar.getElement().getStyle().setMarginBottom(36, Unit.PX);
-				vert.insert(progressBar, index, new VerticalLayoutData(1, -1, new Margins(20)));
+				progressBar.getElement().getStyle()
+						.setMarginBottom(36, Unit.PX);
+				vert.insert(progressBar, index, new VerticalLayoutData(1, -1,
+						new Margins(20)));
+				fireDataMinerWorkAreareRequestUpdate();
 			}
-			
+
 		}
+
 		forceLayout();
 	}
-	
-	
+
+	private void fireDataMinerWorkAreareRequestUpdate() {
+		DataMinerWorkAreaRequestEvent event = new DataMinerWorkAreaRequestEvent(
+				DataMinerWorkAreaRequestEventType.UPDATE);
+		EventBusProvider.INSTANCE.fireEvent(event);
+	}
+
 	/**
 	 * 
 	 */
 	private void showOutput() {
-		HtmlLayoutContainer computationEndMessage=new HtmlLayoutContainer("<p>The computation <b>"+operator.getName()+"</b> finished.</p>");
-		vert.add(computationEndMessage, new VerticalLayoutData(-1, -1, new Margins(0)));
-		ComputationOutputPanel computationOutputPanel = new ComputationOutputPanel(computationId);
-		computationOutputPanel.getElement().getStyle().setMarginBottom(36, Unit.PX);
-		vert.add(computationOutputPanel, new VerticalLayoutData(1, -1, new Margins(0)));
-		
+		HtmlLayoutContainer computationEndMessage = new HtmlLayoutContainer(
+				"<p>The computation <b>" + computationId.getOperatorName()
+						+ "</b> finished.</p>");
+		vert.add(computationEndMessage, new VerticalLayoutData(-1, -1,
+				new Margins(0)));
+		ComputationOutputPanel computationOutputPanel = new ComputationOutputPanel(
+				computationId);
+		computationOutputPanel.getElement().getStyle()
+				.setMarginBottom(36, Unit.PX);
+		vert.add(computationOutputPanel, new VerticalLayoutData(1, -1,
+				new Margins(0)));
+
 	}
 
 	/**
 	 * @param computationStatus
 	 */
 	protected void updateStatus(ComputationStatus computationStatus) {
-	    Log.debug("Conputation Status Panel ::Update Status ");
+		Log.debug("Conputation Status Panel ::Update Status ");
 		if (computationStatus.getStatus() == Status.PENDING)
 			progressBar.updateText("Pending...");
 		else {
 			double percentage = computationStatus.getPercentage();
-			progressBar.updateProgress(percentage/100,
-					"Running, " + NumberFormat.getFormat("0.00").format(percentage) + "% Complete");
+			progressBar.updateProgress(percentage / 100, "Running, "
+					+ NumberFormat.getFormat("0.00").format(percentage)
+					+ "% Complete");
 		}
 	}
 
-	
 	private class ComputationTimer extends Timer {
 
 		@Override
 		public void run() {
-		    Log.debug("Timer run .....");
-			DataMinerPortletServiceAsync.INSTANCE.getComputationStatus(computationId, new AsyncCallback<ComputationStatus>() {
+			Log.debug("Timer run .....");
+			DataMinerPortletServiceAsync.INSTANCE.getComputationStatus(
+					computationId, new AsyncCallback<ComputationStatus>() {
 
-				@Override
-				public void onFailure(Throwable caught) {
-					int index=vert.getWidgetIndex(progressBar);
-					vert.remove(index);
-					//TODO
-					progressBar =new RedProgressBar();
-					progressBar.updateProgress(1, "Failed to get the status");
-					progressBar.getElement().getStyle().setMarginBottom(36, Unit.PX);
-					vert.insert(progressBar, index, new VerticalLayoutData(1, -1, new Margins(20)));
-					
-				}
+						@Override
+						public void onFailure(Throwable caught) {
+							int index = vert.getWidgetIndex(progressBar);
+							vert.remove(index);
+							// TODO
+							progressBar = new RedProgressBar();
+							progressBar.updateProgress(1,
+									"Failed to get the status");
+							progressBar.getElement().getStyle()
+									.setMarginBottom(36, Unit.PX);
+							vert.insert(progressBar, index,
+									new VerticalLayoutData(1, -1, new Margins(
+											20)));
 
-				@Override
-				public void onSuccess(ComputationStatus computationStatus) {
-					if (computationStatus.isTerminated()) {
-						ComputationTimer.this.cancel();
-						computationTerminated(computationId, operator, computationStatus);
-					} else
-						updateStatus(computationStatus);
-				}
-			});
+						}
+
+						@Override
+						public void onSuccess(
+								ComputationStatus computationStatus) {
+							if (computationStatus.isTerminated()) {
+								ComputationTimer.this.cancel();
+								computationTerminated(computationId,
+										computationStatus);
+							} else
+								updateStatus(computationStatus);
+						}
+					});
 		}
-		
-	}
 
+	}
 
 	/**
 	 * 
@@ -229,9 +268,9 @@ public class ComputationStatusPanel extends SimpleContainer {
 	public void stopTimer() {
 		try {
 			timer.cancel();
-		} catch (Exception e) {			
+		} catch (Exception e) {
 		}
 		vert.clear();
-		
+
 	}
 }

src/main/java/org/gcube/portlets/user/dataminermanager/client/monitor/StatusMonitor.java

@@ -0,0 +1,63 @@
+package org.gcube.portlets.user.dataminermanager.client.monitor;
+
+import com.google.gwt.safehtml.shared.SafeHtml;
+import com.sencha.gxt.widget.core.client.box.AutoProgressMessageBox;
+
+/**
+ * 
+ * @author giancarlo email: <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public class StatusMonitor extends AutoProgressMessageBox {
+
+	public StatusMonitor() {
+		super("Waiting", "Please wait...");
+		create();
+	}
+
+	/**
+	 * 
+	 * @param headingHtml
+	 * @param messageHtml
+	 */
+	public StatusMonitor(SafeHtml headingHtml, SafeHtml messageHtml) {
+		super(headingHtml, messageHtml);
+		create();
+	}
+
+	/**
+	 * 
+	 * @param headingHtml
+	 */
+	public StatusMonitor(SafeHtml headingHtml) {
+		super(headingHtml);
+		create();
+	}
+
+	/**
+	 * 
+	 * @param headingHtml
+	 * @param messageHtml
+	 */
+	public StatusMonitor(String headingHtml, String messageHtml) {
+		super(headingHtml, messageHtml);
+		create();
+	}
+
+	/**
+	 * 
+	 * @param headingHtml
+	 */
+	public StatusMonitor(String headingHtml) {
+		super(headingHtml);
+		create();
+	}
+
+	private void create() {
+		setProgressText("In progress...");
+		auto();
+		show();
+	}
+
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/rpc/DataMinerPortletService.java

@@ -36,7 +36,6 @@ public interface DataMinerPortletService extends RemoteService {
 	public ComputationStatus getComputationStatus(ComputationId computationId)
 			throws ServiceException;
 
-	
 	public ComputationId resubmit(ItemDescription itemDescription) throws ServiceException;
 
 	
@@ -55,4 +54,6 @@ public interface DataMinerPortletService extends RemoteService {
 	
 	public Resource getResourceByComputationId(ComputationId computationId) throws ServiceException;
 	
+	public Resource getResourceByComputationItem(ItemDescription itemDescription) throws ServiceException;
+	
 }

src/main/java/org/gcube/portlets/user/dataminermanager/client/rpc/DataMinerPortletServiceAsync.java

@@ -61,5 +61,8 @@ public interface DataMinerPortletServiceAsync {
 
 	void getResourceByComputationId(ComputationId computationId,
 			AsyncCallback<Resource> callback);
+	
+	void getResourceByComputationItem(ItemDescription itemDescription,
+			AsyncCallback<Resource> callback);
 
 }

src/main/java/org/gcube/portlets/user/dataminermanager/client/type/DataMinerWorkAreaRequestEventType.java

@@ -0,0 +1,11 @@
+package org.gcube.portlets.user.dataminermanager.client.type;
+
+/**
+ * 
+ * @author Giancarlo Panichi
+ * email: <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
+ *
+ */
+public enum DataMinerWorkAreaRequestEventType {
+	OPEN,UPDATE;
+}

src/main/java/org/gcube/portlets/user/dataminermanager/client/type/OutputResourceRequestEventType.java

@@ -0,0 +1,11 @@
+package org.gcube.portlets.user.dataminermanager.client.type;
+
+/**
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ *
+ */
+public enum OutputResourceRequestEventType {
+	ComputationId, ItemDescription;
+}

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

@@ -155,7 +155,7 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 			logger.debug("Resubmit(): " + itemDescription);
 			Map<String, String> properties = StorageUtil.getProperties(
 					aslSession.getUsername(), itemDescription.getId());
-			logger.debug(properties.toString());
+			logger.debug("Properties: " + properties);
 			SClient smClient = SessionUtil.getSClient(session, aslSession);
 			return smClient.resubmitComputation(properties);
 		} catch (ServiceException e) {
@@ -190,30 +190,7 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 		}
 	}
 
-	@Override
-	public Resource getResourceByComputationId(ComputationId computationId)
-			throws ServiceException {
-		try {
-			Log.debug("getResourceByComputationId: " + computationId);
-			HttpSession session = this.getThreadLocalRequest().getSession();
-			ASLSession aslSession = SessionUtil.getASLSession(session);
-
-			SClient smClient = SessionUtil.getSClient(session, aslSession);
-			Resource resource = smClient
-					.getResourceByComputationId(computationId);
-			Log.debug("Resoure: " + resource);
-			return resource;
-		} catch (ServiceException e) {
-			logger.error(e.getLocalizedMessage());
-			throw e;
-		} catch (Throwable e) {
-			logger.error("Error in getResourceByComputationId: "
-					+ e.getLocalizedMessage());
-			e.printStackTrace();
-			throw new ServiceException(e.getLocalizedMessage(), e);
-		}
-
-	}
+	
 
 	@Override
 	public void deleteItem(ItemDescription itemDescription)
@@ -317,4 +294,53 @@ public class DataMinerManagerServiceImpl extends RemoteServiceServlet implements
 		}
 	}
 
+	@Override
+	public Resource getResourceByComputationId(ComputationId computationId)
+			throws ServiceException {
+		try {
+			Log.debug("getResourceByComputationId: " + computationId);
+			HttpSession session = this.getThreadLocalRequest().getSession();
+			ASLSession aslSession = SessionUtil.getASLSession(session);
+
+			SClient smClient = SessionUtil.getSClient(session, aslSession);
+			Resource resource = smClient
+					.getResourceByComputationId(computationId);
+			Log.debug("Resoure: " + resource);
+			return resource;
+		} catch (ServiceException e) {
+			logger.error(e.getLocalizedMessage());
+			throw e;
+		} catch (Throwable e) {
+			logger.error("Error in getResourceByComputationId: "
+					+ e.getLocalizedMessage());
+			e.printStackTrace();
+			throw new ServiceException(e.getLocalizedMessage(), e);
+		}
+
+	}
+	
+	
+	@Override
+	public Resource getResourceByComputationItem(ItemDescription itemDescription)
+			throws ServiceException {
+		try {
+			HttpSession session = this.getThreadLocalRequest().getSession();
+			ASLSession aslSession = SessionUtil.getASLSession(session);
+			logger.debug("ResourceByComputationItemt(): " + itemDescription);
+			Map<String, String> properties = StorageUtil.getProperties(
+					aslSession.getUsername(), itemDescription.getId());
+			logger.debug("Properties: " + properties);
+			SClient smClient = SessionUtil.getSClient(session, aslSession);
+			return smClient.getResourceByComputationProperties(properties);
+		} catch (ServiceException e) {
+			logger.error(e.getLocalizedMessage());
+			throw e;
+		} catch (Throwable e) {
+			logger.error("Error retrieving resource by computation item: "
+					+ e.getLocalizedMessage());
+			e.printStackTrace();
+			throw new ServiceException(e.getLocalizedMessage());
+		}
+	}
+
 }

src/main/java/org/gcube/portlets/user/dataminermanager/server/smservice/SClient.java

@@ -39,6 +39,9 @@ public abstract class SClient {
 	public abstract Resource getResourceByComputationId(
 			ComputationId computationId) throws Exception;
 
+	public abstract Resource getResourceByComputationProperties(
+			Map<String, String> computationProperties) throws Exception;
+
 	public abstract String cancelComputation(ComputationId computationId)
 			throws Exception;
 

src/main/java/org/gcube/portlets/user/dataminermanager/server/smservice/SClient4WPS.java

@@ -278,7 +278,8 @@ public class SClient4WPS extends SClient {
 					processDescription = wpsClient.getProcessDescription(
 							wpsProcessingServlet, processId);
 				} catch (Throwable e) {
-					logger.error("Error getProcessDescription for process "+processId+" with WPS URL: "
+					logger.error("Error getProcessDescription for process "
+							+ processId + " with WPS URL: "
 							+ wpsProcessingServlet);
 					if (k == 3)
 						throw e;
@@ -294,7 +295,7 @@ public class SClient4WPS extends SClient {
 				processDescription.set(XmlString.Factory
 						.parse(processDescriptionURL));
 
-			logger.debug("ProcessDescription: "+processDescription);
+			logger.debug("ProcessDescription: " + processDescription);
 
 			InputDescriptionType[] inputList = processDescription
 					.getDataInputs().getInputArray();
@@ -704,7 +705,8 @@ public class SClient4WPS extends SClient {
 			logger.error("Invalid processLocation: " + processUrl);
 			throw new Exception("Invalid processLocation: " + processUrl);
 		}
-		ComputationId computationId = new ComputationId(id, processUrl);
+		ComputationId computationId = new ComputationId(id, processUrl,
+				operator.getId(), operator.getName());
 		logger.debug("ComputationId: " + computationId);
 
 		runningProcess.put(computationId, processInformations);
@@ -1143,11 +1145,16 @@ public class SClient4WPS extends SClient {
 	}
 
 	@Override
-	public ComputationId resubmitComputation(Map<String,String> computationProperties)
-			throws Exception {
+	public ComputationId resubmitComputation(
+			Map<String, String> computationProperties) throws Exception {
 		ProcessInformations processInformations;
+		if (computationProperties == null || computationProperties.isEmpty()) {
+			throw new Exception("Invalid computation properties: "
+					+ computationProperties);
+		}
 		try {
-			processInformations = describeProcess(computationProperties.get("operator_name"));
+			processInformations = describeProcess(computationProperties
+					.get("operator_id"));
 		} catch (Throwable e) {
 			logger.error("GetParameters: " + e.getLocalizedMessage());
 			e.printStackTrace();
@@ -1163,19 +1170,30 @@ public class SClient4WPS extends SClient {
 			inputParameters.put(inputParameter.getName(), inputParameter);
 		}
 
-		
 		Map<String, String> userInputs = new LinkedHashMap<>();
-		for(Map.Entry<String, String> entry:computationProperties.entrySet()){
-			if(entry.getKey().startsWith("input")){
-				int inputSeparatorIndex=entry.getKey().indexOf("_");
-				String inputKey=entry.getKey().substring(inputSeparatorIndex+1);
-				userInputs.put(inputKey, entry.getValue());
-				logger.debug("UserInputs[key=" + inputKey + ", value="
-						+ entry.getValue() + "]");
-				
+		for (Map.Entry<String, String> entry : computationProperties.entrySet()) {
+			if (entry.getKey().startsWith("input")) {
+				int inputSeparatorIndex = entry.getKey().indexOf("_");
+				String inputKey = entry.getKey().substring(
+						inputSeparatorIndex + 1);
+				if (inputKey.compareToIgnoreCase("user.name") != 0
+						&& inputKey.compareToIgnoreCase("scope") != 0) {
+					userInputs.put(inputKey, entry.getValue());
+					logger.debug("UserInputs[key=" + inputKey + ", value="
+							+ entry.getValue() + "]");
+				}
+
 			}
 		}
-		
+
+		if (userInputs.isEmpty()) {
+			logger.error("Attention no imputs parameters retrieved for this computation: "
+					+ computationProperties);
+			throw new Exception(
+					"Attention no imputs parameters retrieved for this computation: "
+							+ computationProperties);
+		}
+
 		String processUrl = compute(processInformations, userInputs,
 				inputParameters);
 		logger.debug("Stated Computation ProcessLocation:" + processUrl);
@@ -1188,7 +1206,9 @@ public class SClient4WPS extends SClient {
 			logger.error("Invalid processLocation: " + processUrl);
 			throw new Exception("Invalid processLocation: " + processUrl);
 		}
-		ComputationId computationId = new ComputationId(id, processUrl);
+		ComputationId computationId = new ComputationId(id, processUrl,
+				computationProperties.get("operator_id"),
+				computationProperties.get("operator_name"));
 		logger.debug("ComputationId: " + computationId);
 
 		runningProcess.put(computationId, processInformations);
@@ -1196,4 +1216,11 @@ public class SClient4WPS extends SClient {
 		return computationId;
 	}
 
+	@Override
+	public Resource getResourceByComputationProperties(
+			Map<String, String> computationProperties) throws Exception {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
 }

src/main/java/org/gcube/portlets/user/dataminermanager/server/smservice/wps/StatWPSClientSession.java

@@ -338,10 +338,10 @@ public class StatWPSClientSession {
 		url = req.getRequest(url);
 		try {
 			String authString = user + ":" + password;
-			System.out.println("auth string: " + authString);
+			logger.debug("auth string: " + authString);
 			byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 			String encoded = new String(authEncBytes);
-			System.out.println("Base64 encoded auth string: " + encoded);
+			logger.debug("Base64 encoded auth string: " + encoded);
 
 			URL urlObj = new URL(url);
 			HttpURLConnection connection = (HttpURLConnection) urlObj
@@ -370,17 +370,17 @@ public class StatWPSClientSession {
 	private ProcessDescriptionsDocument retrieveDescriptionViaGET(
 			String[] processIDs, String url) throws WPSClientException {
 		try {
-			System.out.println("RetrieveDescriptio: " + processIDs + " url:"
+			logger.debug("RetrieveDescription GET: " + processIDs + " url:"
 					+ url);
 			StatClientDescribeProcessRequest req = new StatClientDescribeProcessRequest();
 			req.setIdentifier(processIDs);
 			String requestURL = req.getRequest(url);
 
 			String authString = user + ":" + password;
-			System.out.println("auth string: " + authString);
+			logger.debug("auth string: " + authString);
 			byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 			String encoded = new String(authEncBytes);
-			System.out.println("Base64 encoded auth string: " + encoded);
+			logger.debug("Base64 encoded auth string: " + encoded);
 
 			URL urlObj = new URL(requestURL);
 			HttpURLConnection connection = (HttpURLConnection) urlObj
@@ -419,10 +419,10 @@ public class StatWPSClientSession {
 		try {
 			logger.debug("RetrieveDataViaPost(): " + urlString);
 			String authString = user + ":" + password;
-			System.out.println("auth string: " + authString);
+			logger.debug("auth string: " + authString);
 			byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 			String encoded = new String(authEncBytes);
-			System.out.println("Base64 encoded auth string: " + encoded);
+			logger.debug("Base64 encoded auth string: " + encoded);
 
 			URL url = new URL(urlString);
 			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
@@ -609,10 +609,10 @@ public class StatWPSClientSession {
 		
 		try {
 			String authString = user + ":" + password;
-			System.out.println("auth string: " + authString);
+			logger.debug("auth string: " + authString);
 			byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
 			String encoded = new String(authEncBytes);
-			System.out.println("Base64 encoded auth string: " + encoded);
+			logger.debug("Base64 encoded auth string: " + encoded);
 
 			url+="?id="+computationId;
 			URL urlObj = new URL(url);

src/main/java/org/gcube/portlets/user/dataminermanager/shared/data/ComputationId.java

@@ -13,15 +13,20 @@ public class ComputationId implements Serializable {
 	private static final long serialVersionUID = 7898676192287822723L;
 	private String id;
 	private String urlId;
+	private String operatorId;
+	private String operatorName;
 
 	public ComputationId() {
 		super();
 	}
 
-	public ComputationId(String id, String urlId) {
+	public ComputationId(String id, String urlId, String operatorId,
+			String operatorName) {
 		super();
 		this.id = id;
 		this.urlId = urlId;
+		this.operatorId = operatorId;
+		this.operatorName = operatorName;
 	}
 
 	public String getId() {
@@ -40,9 +45,26 @@ public class ComputationId implements Serializable {
 		this.urlId = urlId;
 	}
 
+	public String getOperatorId() {
+		return operatorId;
+	}
+
+	public void setOperatorId(String operatorId) {
+		this.operatorId = operatorId;
+	}
+
+	public String getOperatorName() {
+		return operatorName;
+	}
+
+	public void setOperatorName(String operatorName) {
+		this.operatorName = operatorName;
+	}
+
 	@Override
 	public String toString() {
-		return "ComputationId [id=" + id + ", urlId=" + urlId + "]";
+		return "ComputationId [id=" + id + ", urlId=" + urlId + ", operatorId="
+				+ operatorId + ", operatorName=" + operatorName + "]";
 	}
 
 }