Added SessionExpiredShow

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/tabular-data-table-widget@95793 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/td/tablewidget/client/ChangeTableTypePanel.java

@@ -1,8 +1,7 @@
 package org.gcube.portlets.user.td.tablewidget.client;
 
-
-
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.table.ChangeTableTypeSession;
 import org.gcube.portlets.user.td.tablewidget.client.progress.ChangeTableTypeProgressDialog;
@@ -10,6 +9,8 @@ import org.gcube.portlets.user.td.tablewidget.client.type.TableTypeElement;
 import org.gcube.portlets.user.td.tablewidget.client.type.TableTypeProperties;
 import org.gcube.portlets.user.td.tablewidget.client.type.TableTypeStore;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -29,50 +30,47 @@ import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
 import com.sencha.gxt.widget.core.client.form.ComboBox;
 import com.sencha.gxt.widget.core.client.form.FieldLabel;
 
-
 /**
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ * 
  */
-public class ChangeTableTypePanel  extends FramedPanel {
+public class ChangeTableTypePanel extends FramedPanel {
 	protected String WIDTH = "640px";
 	protected String HEIGHT = "520px";
-	
+
 	protected TRId trId;
 	protected TableData table;
 	protected String headingTitle;
 	protected VerticalLayoutContainer vl;
 	protected EventBus eventBus;
 	protected ChangeTableTypeSession changeTableTypeSession;
-	protected ChangeTableTypeProgressDialog changeTableTypeProgressDialog; 
-	
+	protected ChangeTableTypeProgressDialog changeTableTypeProgressDialog;
+
 	protected ComboBox<TableTypeElement> comboTableType;
 	protected TextButton change;
 
-	
-	
 	public ChangeTableTypePanel(TRId trId, EventBus eventBus) {
 		super();
-		this.trId=trId;
+		this.trId = trId;
 		this.eventBus = eventBus;
-		forceLayoutOnResize=true;
+		forceLayoutOnResize = true;
 		create();
 	}
-	
-	protected void create(){
+
+	protected void create() {
 		setWidth(WIDTH);
 		setHeight(HEIGHT);
 		setHeaderVisible(false);
 		setBodyBorder(false);
-		
-		
+
 		TableTypeProperties props = GWT.create(TableTypeProperties.class);
-		ListStore<TableTypeElement> storeTableType = new ListStore<TableTypeElement>(props.id());
-	
+		ListStore<TableTypeElement> storeTableType = new ListStore<TableTypeElement>(
+				props.id());
+
 		storeTableType.addAll(TableTypeStore.getTableTypes());
-		
+
 		Log.trace("Store created");
 
 		comboTableType = new ComboBox<TableTypeElement>(storeTableType,
@@ -80,104 +78,110 @@ public class ChangeTableTypePanel  extends FramedPanel {
 
 		Log.trace("ComboTableType created");
 
-		
 		comboTableType.setEmptyText("Select a Table Type...");
 		comboTableType.setItemId("ComboTableType");
 		comboTableType.setWidth("200px");
 		comboTableType.setEditable(false);
 		comboTableType.setTriggerAction(TriggerAction.ALL);
 
-		 
-		change=new TextButton("Change");
+		change = new TextButton("Change");
 		change.addSelectHandler(new SelectHandler() {
-			
+
 			public void onSelect(SelectEvent event) {
 				onChangeTableType();
-				
+
 			}
 		});
-		
+
 		vl = new VerticalLayoutContainer();
 		vl.setScrollMode(ScrollMode.AUTO);
 		vl.setAdjustForScroll(true);
 
-		
-		vl.add(new FieldLabel(comboTableType, "Table Type"), new VerticalLayoutData(1,
-				-1));
-		vl.add(change, new VerticalLayoutData(-1, -1, new Margins(10, 0, 10, 0)));
-		
+		vl.add(new FieldLabel(comboTableType, "Table Type"),
+				new VerticalLayoutData(1, -1));
+		vl.add(change,
+				new VerticalLayoutData(-1, -1, new Margins(10, 0, 10, 0)));
+
 		add(vl);
 		show();
 		load();
-		
+
 	}
-	
-	protected void onChangeTableType(){
+
+	protected void onChangeTableType() {
 		TableTypeElement tableTypeElement = comboTableType.getCurrentValue();
-		if(tableTypeElement!=null){
-			changeTableTypeSession=new ChangeTableTypeSession(trId,tableTypeElement.getTableType());
+		if (tableTypeElement != null) {
+			changeTableTypeSession = new ChangeTableTypeSession(trId,
+					tableTypeElement.getTableType());
 			callChangeTableType();
 		} else {
 			UtilsGXT3.alert("Attention", "Select a table type!");
 		}
 	}
-	
+
 	private void callChangeTableType() {
-		TDGWTServiceAsync.INSTANCE.startChangeTableType(
-				changeTableTypeSession, new AsyncCallback<Void>() {
+		TDGWTServiceAsync.INSTANCE.startChangeTableType(changeTableTypeSession,
+				new AsyncCallback<Void>() {
 
 					public void onFailure(Throwable caught) {
-						Log.debug("Change The Table Type Error: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error Changing The Table Type",
-								"Error in invocation of Change Table Type operation!");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.debug("Change The Table Type Error: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3
+									.alert("Error Changing The Table Type",
+											"Error in invocation of Change Table Type operation!");
+						}
 					}
 
 					public void onSuccess(Void result) {
-						changeTableTypeProgressDialog= new ChangeTableTypeProgressDialog(changeTableTypeSession, eventBus);
+						changeTableTypeProgressDialog = new ChangeTableTypeProgressDialog(
+								changeTableTypeSession, eventBus);
 					}
 
 				});
 
 	}
-	
-	
-	protected void setCurrentType(){
-		TableTypeElement tElement=TableTypeStore.getTableTypeElement(table.getTypeName());
-		comboTableType.setValue(tElement); 
-		
+
+	protected void setCurrentType() {
+		TableTypeElement tElement = TableTypeStore.getTableTypeElement(table
+				.getTypeName());
+		comboTableType.setValue(tElement);
+
 	}
-	
-	
+
 	private void load() {
 		TDGWTServiceAsync.INSTANCE.getTable(trId,
 				new AsyncCallback<TableData>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("Error retrieving table: "
-								+ caught.getMessage());
-						UtilsGXT3.alert("Error retrieving table",caught.getMessage());
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("Error retrieving table: "
+									+ caught.getMessage());
+							UtilsGXT3.alert("Error retrieving table",
+									caught.getMessage());
+						}
 					}
 
 					public void onSuccess(TableData result) {
-						Log.debug("Retrieved table: "+result.toString());
-						table=result;
+						Log.debug("Retrieved table: " + result.toString());
+						table = result;
 						setCurrentType();
-						
+
 					}
 
 				});
 
 	}
-	
-	
-	
+
 	public void update(TRId trId) {
 		this.trId = trId;
 		load();
 	}
-	
-	
+
 }
-	

src/main/java/org/gcube/portlets/user/td/tablewidget/client/CloneTabularResource.java

@@ -1,11 +1,14 @@
 package org.gcube.portlets.user.td.tablewidget.client;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.clone.CloneTabularResourceSession;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -34,24 +37,29 @@ public class CloneTabularResource {
 				cloneTabularResourceSession, new AsyncCallback<TRId>() {
 
 					public void onFailure(Throwable caught) {
-						Log.debug("Clone Error: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error Cloning Tabular Resource",
-								"Error in clone operation!");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.debug("Clone Error: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error Cloning Tabular Resource",
+									"Error in clone operation!");
+						}
 					}
 
 					public void onSuccess(TRId result) {
-						Log.info("TR Clone:"+result);
-						final ChangeTableRequestEvent event=new ChangeTableRequestEvent(ChangeTableRequestType.CLONETABULARRESOURCE,result,ChangeTableWhy.TABLEUPDATED);
+						Log.info("TR Clone:" + result);
+						final ChangeTableRequestEvent event = new ChangeTableRequestEvent(
+								ChangeTableRequestType.CLONETABULARRESOURCE,
+								result, ChangeTableWhy.TABLEUPDATED);
 						eventBus.fireEvent(event);
-						UtilsGXT3.info("Clone", "Clone Tabular Resource Succed");
+						UtilsGXT3
+								.info("Clone", "Clone Tabular Resource Succed");
 					}
 
 				});
 
 	}
 
-	
-
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryDiscard.java

@@ -1,9 +1,12 @@
 package org.gcube.portlets.user.td.tablewidget.client.history;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.history.RollBackSession;
 import org.gcube.portlets.user.td.tablewidget.client.progress.RollBackProgressDialog;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -26,11 +29,15 @@ public class HistoryDiscard {
 		TDGWTServiceAsync.INSTANCE.getCurrentTRId(new AsyncCallback<TRId>() {
 
 			public void onFailure(Throwable caught) {
-				Log.error("Error retrieving trId: "
-						+ caught.getLocalizedMessage());
-				UtilsGXT3.alert("Error",
-						"Error retrieving current tabular resource id");
-
+				if (caught instanceof TDGWTSessionExpiredException) {
+					eventBus.fireEvent(new SessionExpiredEvent(
+							SessionExpiredType.EXPIREDONSERVER));
+				} else {
+					Log.error("Error retrieving trId: "
+							+ caught.getLocalizedMessage());
+					UtilsGXT3.alert("Error",
+							"Error retrieving current tabular resource id");
+				}
 			}
 
 			public void onSuccess(TRId result) {
@@ -47,10 +54,15 @@ public class HistoryDiscard {
 				new AsyncCallback<RollBackSession>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("Error in discard: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error in discard", "Error in discard");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("Error in discard: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error in discard",
+									"Error in discard");
+						}
 					}
 
 					public void onSuccess(RollBackSession result) {

src/main/java/org/gcube/portlets/user/td/tablewidget/client/history/HistoryPanel.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.history.OpHistory;
 import org.gcube.portlets.user.td.gwtservice.shared.history.RollBackSession;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
@@ -12,6 +13,8 @@ import org.gcube.portlets.user.td.tablewidget.client.progress.RollBackProgressDi
 import org.gcube.portlets.user.td.tablewidget.client.properties.OpHistoryProperties;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -120,8 +123,8 @@ public class HistoryPanel extends FramedPanel {
 
 			@Override
 			public void render(Context context, String value, SafeHtmlBuilder sb) {
-				sb.appendHtmlConstant("<span title='"+value+"'>"
-						+ value + "</span>");
+				sb.appendHtmlConstant("<span title='" + value + "'>" + value
+						+ "</span>");
 
 			}
 
@@ -132,8 +135,6 @@ public class HistoryPanel extends FramedPanel {
 
 		ColumnConfig<OpHistory, String> rollBackColumn = new ColumnConfig<OpHistory, String>(
 				props.date(), 40, "Undo");
-		
-		
 
 		ActionButtonCellNoFirst button = new ActionButtonCellNoFirst();
 		button.setIcon(ResourceBundle.INSTANCE.undo());
@@ -150,9 +151,7 @@ public class HistoryPanel extends FramedPanel {
 		});
 
 		rollBackColumn.setCell(button);
-		
-		
-		
+
 		List<ColumnConfig<OpHistory, ?>> l = new ArrayList<ColumnConfig<OpHistory, ?>>();
 		l.add(expander);
 		l.add(nameCol);
@@ -219,7 +218,7 @@ public class HistoryPanel extends FramedPanel {
 
 	protected void startSearchRollBackId(int rowIndex) {
 		currentRowIndex = rowIndex;
-		currentOpHistory = store.get(rowIndex-1);
+		currentOpHistory = store.get(rowIndex - 1);
 		Log.debug(currentOpHistory.toString() + " was clicked.[rowIndex="
 				+ currentRowIndex + " ]");
 		callRollBack();
@@ -233,11 +232,15 @@ public class HistoryPanel extends FramedPanel {
 				new AsyncCallback<Void>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("Error in rollback: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error in rollback",
-								"Error in rollback");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("Error in rollback: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error in rollback",
+									"Error in rollback");
+						}
 					}
 
 					public void onSuccess(Void result) {
@@ -262,10 +265,15 @@ public class HistoryPanel extends FramedPanel {
 				new AsyncCallback<ArrayList<OpHistory>>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("Error Retrieving History: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error retrieving history",
-								"Error retrieving history");
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("Error Retrieving History: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error retrieving history",
+									"Error retrieving history");
+						}
 						callback.onFailure(caught);
 					}
 
@@ -288,11 +296,15 @@ public class HistoryPanel extends FramedPanel {
 		TDGWTServiceAsync.INSTANCE.getCurrentTRId(new AsyncCallback<TRId>() {
 
 			public void onFailure(Throwable caught) {
-				Log.error("Error retrieving current TRId: "
-						+ caught.getLocalizedMessage());
-				UtilsGXT3.alert("Error",
-						"Error retrieving current tabular resource id");
-
+				if (caught instanceof TDGWTSessionExpiredException) {
+					eventBus.fireEvent(new SessionExpiredEvent(
+							SessionExpiredType.EXPIREDONSERVER));
+				} else {
+					Log.error("Error retrieving current TRId: "
+							+ caught.getLocalizedMessage());
+					UtilsGXT3.alert("Error",
+							"Error retrieving current tabular resource id");
+				}
 			}
 
 			public void onSuccess(TRId result) {

src/main/java/org/gcube/portlets/user/td/tablewidget/client/progress/ChangeTableTypeProgressDialog.java

@@ -1,10 +1,13 @@
 package org.gcube.portlets.user.td.tablewidget.client.progress;
 
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.table.ChangeTableTypeSession;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -19,125 +22,130 @@ import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.Verti
 import com.sencha.gxt.widget.core.client.event.SelectEvent;
 import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
 
-
-
 /**
- * LabelColumnProgressDialog is a Dialog that show progress of change the column label 
+ * LabelColumnProgressDialog is a Dialog that show progress of change the column
+ * label
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
  */
-public class ChangeTableTypeProgressDialog extends Window implements ChangeTableTypeProgressListener {
-		public static final int STATUS_POLLING_DELAY = 1000;
-		protected String WIDTH = "400px";
-		protected String HEIGHT = "120px";
-		protected ChangeTableTypeSession changeTableTypeSession;
-		protected EventBus eventBus;
-		protected ChangeTableTypeProgressUpdater progressUpdater;
-		protected TextButton ok;
-		protected TRId trId;
-		private ChangeTableWhy why;
-		
-		public ChangeTableTypeProgressDialog(ChangeTableTypeSession changeTableTypeSession, EventBus eventBus) {
-			this.changeTableTypeSession=changeTableTypeSession;
-			this.eventBus=eventBus;
-			setWidth(WIDTH);
-			setHeight(HEIGHT);
-			setBodyBorder(false);
-			setResizable(true);
-			setModal(true);
-			setHeadingText("Change The Table Type Progress");
-			
-			trId=null;
-			
-			FramedPanel panel=new FramedPanel();
-			panel.setHeaderVisible(false);
-			panel.setBodyBorder(false);
-			
-			VerticalLayoutContainer v = new VerticalLayoutContainer();
-			
-			
-			ProgressBar progressBar = new ProgressBar();
-			
-			ok=new TextButton("OK");
-			ok.addSelectHandler(new SelectHandler() {
-				
-				public void onSelect(SelectEvent event) {
-					updateInvocation();
-					
-				}
-			});
-			
-			v.add(progressBar, new VerticalLayoutData(1,
-					1, new Margins(5, 5, 5, 5)));
-			
-			panel.add(v);
-			panel.addButton(ok);
-			add(panel);
-			
-			
-			progressUpdater = new ChangeTableTypeProgressUpdater();
-			progressUpdater.addListener(new ChangeTableTypeProgressBarUpdater(progressBar));
+public class ChangeTableTypeProgressDialog extends Window implements
+		ChangeTableTypeProgressListener {
+	public static final int STATUS_POLLING_DELAY = 1000;
+	protected String WIDTH = "400px";
+	protected String HEIGHT = "120px";
+	protected ChangeTableTypeSession changeTableTypeSession;
+	protected EventBus eventBus;
+	protected ChangeTableTypeProgressUpdater progressUpdater;
+	protected TextButton ok;
+	protected TRId trId;
+	private ChangeTableWhy why;
 
-			progressUpdater.addListener(this);
-			progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
-			show();
-			ok.setVisible(false);
-					
-		}
+	public ChangeTableTypeProgressDialog(
+			ChangeTableTypeSession changeTableTypeSession, EventBus eventBus) {
+		this.changeTableTypeSession = changeTableTypeSession;
+		this.eventBus = eventBus;
+		setWidth(WIDTH);
+		setHeight(HEIGHT);
+		setBodyBorder(false);
+		setResizable(true);
+		setModal(true);
+		setHeadingText("Change The Table Type Progress");
 
-		public void operationInitializing() {
-			// TODO Auto-generated method stub
-			
-		}
+		trId = null;
 
-		public void operationUpdate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+		FramedPanel panel = new FramedPanel();
+		panel.setHeaderVisible(false);
+		panel.setBodyBorder(false);
 
-		public void operationComplete(TRId trId) {
-			Log.debug("Operation Complete return: "+trId.toString());
-			this.trId=trId;
-			why=ChangeTableWhy.TABLEUPDATED;
-			updateInvocation();
-		}
+		VerticalLayoutContainer v = new VerticalLayoutContainer();
+
+		ProgressBar progressBar = new ProgressBar();
+
+		ok = new TextButton("OK");
+		ok.addSelectHandler(new SelectHandler() {
+
+			public void onSelect(SelectEvent event) {
+				updateInvocation();
 
-		public void operationFailed(Throwable caught, String reason,
-				String failureDetails) {
-			ok.setVisible(true);
-			this.trId=null;
-			UtilsGXT3.alert("Error Changing The Table Type", reason);
-			
-		}
-		
-		public void updateInvocation(){
-			if(trId!=null){
-				ChangeTableRequestEvent changeTableRequestEvent=
-						new ChangeTableRequestEvent(ChangeTableRequestType.CHANGETABLETYPE, trId,why);
-				eventBus.fireEvent(changeTableRequestEvent);
 			}
-			hide();
-		}
+		});
 
-		@Override
-		public void operationStopped(TRId trId,String reason, String details) {
-			Log.debug("Operation Stopped: ["+trId.toString()+", "+reason+", "+details+"]");
+		v.add(progressBar,
+				new VerticalLayoutData(1, 1, new Margins(5, 5, 5, 5)));
+
+		panel.add(v);
+		panel.addButton(ok);
+		add(panel);
+
+		progressUpdater = new ChangeTableTypeProgressUpdater();
+		progressUpdater.addListener(new ChangeTableTypeProgressBarUpdater(
+				progressBar));
+
+		progressUpdater.addListener(this);
+		progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
+		show();
+		ok.setVisible(false);
+
+	}
+
+	public void operationInitializing() {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationUpdate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationComplete(TRId trId) {
+		Log.debug("Operation Complete return: " + trId.toString());
+		this.trId = trId;
+		why = ChangeTableWhy.TABLEUPDATED;
+		updateInvocation();
+	}
+
+	public void operationFailed(Throwable caught, String reason,
+			String failureDetails) {
+		if (caught instanceof TDGWTSessionExpiredException) {
+			eventBus.fireEvent(new SessionExpiredEvent(
+					SessionExpiredType.EXPIREDONSERVER));
+		} else {
 			ok.setVisible(true);
-			this.trId=trId;
-			why=ChangeTableWhy.TABLECURATION;
+			this.trId = null;
+			UtilsGXT3.alert("Error Changing The Table Type", reason);
 		}
+	}
 
-		@Override
-		public void operationGeneratingView() {
-			// TODO Auto-generated method stub
-			
+	public void updateInvocation() {
+		if (trId != null) {
+			ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
+					ChangeTableRequestType.CHANGETABLETYPE, trId, why);
+			eventBus.fireEvent(changeTableRequestEvent);
 		}
+		hide();
+	}
 
-		@Override
-		public void operationValidate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+	@Override
+	public void operationStopped(TRId trId, String reason, String details) {
+		Log.debug("Operation Stopped: [" + trId.toString() + ", " + reason
+				+ ", " + details + "]");
+		ok.setVisible(true);
+		this.trId = trId;
+		why = ChangeTableWhy.TABLECURATION;
+	}
+
+	@Override
+	public void operationGeneratingView() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public void operationValidate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/progress/DeleteRowsProgressDialog.java

@@ -1,10 +1,13 @@
 package org.gcube.portlets.user.td.tablewidget.client.progress;
 
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.rows.DeleteRowsSession;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -19,126 +22,131 @@ import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.Verti
 import com.sencha.gxt.widget.core.client.event.SelectEvent;
 import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
 
-
-
 /**
- * LabelColumnProgressDialog is a Dialog that show progress of change the column label 
+ * LabelColumnProgressDialog is a Dialog that show progress of change the column
+ * label
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
  */
-public class DeleteRowsProgressDialog extends Window implements DeleteRowsProgressListener {
-		public static final int STATUS_POLLING_DELAY = 1000;
-		protected String WIDTH = "400px";
-		protected String HEIGHT = "120px";
-		protected DeleteRowsSession deleteRowsSession;
-		protected EventBus eventBus;
-		protected DeleteRowsProgressUpdater progressUpdater;
-		protected TextButton ok;
-		protected TRId trId;
-		private ChangeTableWhy why;
-		
-		public DeleteRowsProgressDialog(DeleteRowsSession deleteRowsSession, EventBus eventBus) {
-			this.deleteRowsSession=deleteRowsSession;
-			this.eventBus=eventBus;
-			setWidth(WIDTH);
-			setHeight(HEIGHT);
-			setBodyBorder(false);
-			setResizable(true);
-			setModal(true);
-			setHeadingText("Delete Rows Progress");
-			
-			trId=null;
-			
-			FramedPanel panel=new FramedPanel();
-			panel.setHeaderVisible(false);
-			panel.setBodyBorder(false);
-			
-			VerticalLayoutContainer v = new VerticalLayoutContainer();
-			
-			
-			ProgressBar progressBar = new ProgressBar();
-			
-			ok=new TextButton("OK");
-			ok.addSelectHandler(new SelectHandler() {
-				
-				public void onSelect(SelectEvent event) {
-					updateInvocation();
-					
-				}
-			});
-			
-			v.add(progressBar, new VerticalLayoutData(1,
-					1, new Margins(5, 5, 5, 5)));
-			
-			panel.add(v);
-			panel.addButton(ok);
-			add(panel);
-			
-			
-			progressUpdater = new DeleteRowsProgressUpdater();
-			progressUpdater.addListener(new DeleteRowsProgressBarUpdater(progressBar));
+public class DeleteRowsProgressDialog extends Window implements
+		DeleteRowsProgressListener {
+	public static final int STATUS_POLLING_DELAY = 1000;
+	protected String WIDTH = "400px";
+	protected String HEIGHT = "120px";
+	protected DeleteRowsSession deleteRowsSession;
+	protected EventBus eventBus;
+	protected DeleteRowsProgressUpdater progressUpdater;
+	protected TextButton ok;
+	protected TRId trId;
+	private ChangeTableWhy why;
 
-			progressUpdater.addListener(this);
-			progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
-			show();
-			ok.setVisible(false);
-					
-		}
+	public DeleteRowsProgressDialog(DeleteRowsSession deleteRowsSession,
+			EventBus eventBus) {
+		this.deleteRowsSession = deleteRowsSession;
+		this.eventBus = eventBus;
+		setWidth(WIDTH);
+		setHeight(HEIGHT);
+		setBodyBorder(false);
+		setResizable(true);
+		setModal(true);
+		setHeadingText("Delete Rows Progress");
 
-		public void operationInitializing() {
-			// TODO Auto-generated method stub
-			
-		}
+		trId = null;
 
-		public void operationUpdate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+		FramedPanel panel = new FramedPanel();
+		panel.setHeaderVisible(false);
+		panel.setBodyBorder(false);
 
-		public void operationComplete(TRId trId) {
-			Log.debug("Operation Complete return: "+trId.toString());
-			this.trId=trId;
-			why=ChangeTableWhy.TABLEUPDATED;
-			updateInvocation();
-			
-		}
+		VerticalLayoutContainer v = new VerticalLayoutContainer();
+
+		ProgressBar progressBar = new ProgressBar();
+
+		ok = new TextButton("OK");
+		ok.addSelectHandler(new SelectHandler() {
+
+			public void onSelect(SelectEvent event) {
+				updateInvocation();
 
-		public void operationFailed(Throwable caught, String reason,
-				String failureDetails) {
-			ok.setVisible(true);
-			this.trId=null;
-			UtilsGXT3.alert("Error Deleting Rows", reason);
-			
-		}
-		
-		public void updateInvocation(){
-			if(trId!=null){
-				ChangeTableRequestEvent changeTableRequestEvent=
-						new ChangeTableRequestEvent(ChangeTableRequestType.DELETEROWS, trId, why);
-				eventBus.fireEvent(changeTableRequestEvent);
 			}
-			hide();
-		}
+		});
 
-		@Override
-		public void operationStopped(TRId trId,String reason, String details) {
-			Log.debug("Operation Stopped: ["+trId.toString()+", "+reason+", "+details+"]");
+		v.add(progressBar,
+				new VerticalLayoutData(1, 1, new Margins(5, 5, 5, 5)));
+
+		panel.add(v);
+		panel.addButton(ok);
+		add(panel);
+
+		progressUpdater = new DeleteRowsProgressUpdater();
+		progressUpdater.addListener(new DeleteRowsProgressBarUpdater(
+				progressBar));
+
+		progressUpdater.addListener(this);
+		progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
+		show();
+		ok.setVisible(false);
+
+	}
+
+	public void operationInitializing() {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationUpdate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationComplete(TRId trId) {
+		Log.debug("Operation Complete return: " + trId.toString());
+		this.trId = trId;
+		why = ChangeTableWhy.TABLEUPDATED;
+		updateInvocation();
+
+	}
+
+	public void operationFailed(Throwable caught, String reason,
+			String failureDetails) {
+		if (caught instanceof TDGWTSessionExpiredException) {
+			eventBus.fireEvent(new SessionExpiredEvent(
+					SessionExpiredType.EXPIREDONSERVER));
+		} else {
 			ok.setVisible(true);
-			this.trId=trId;
-			why=ChangeTableWhy.TABLECURATION;
+			this.trId = null;
+			UtilsGXT3.alert("Error Deleting Rows", reason);
 		}
+	}
 
-		@Override
-		public void operationGeneratingView() {
-			// TODO Auto-generated method stub
-			
+	public void updateInvocation() {
+		if (trId != null) {
+			ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
+					ChangeTableRequestType.DELETEROWS, trId, why);
+			eventBus.fireEvent(changeTableRequestEvent);
 		}
+		hide();
+	}
 
-		@Override
-		public void operationValidate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+	@Override
+	public void operationStopped(TRId trId, String reason, String details) {
+		Log.debug("Operation Stopped: [" + trId.toString() + ", " + reason
+				+ ", " + details + "]");
+		ok.setVisible(true);
+		this.trId = trId;
+		why = ChangeTableWhy.TABLECURATION;
+	}
+
+	@Override
+	public void operationGeneratingView() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public void operationValidate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/progress/DuplicatesRowsProgressDialog.java

@@ -1,10 +1,13 @@
 package org.gcube.portlets.user.td.tablewidget.client.progress;
 
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.rows.DuplicatesSession;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -19,124 +22,130 @@ import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.Verti
 import com.sencha.gxt.widget.core.client.event.SelectEvent;
 import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
 
-
-
 /**
- * LabelColumnProgressDialog is a Dialog that show progress of change the column label 
+ * LabelColumnProgressDialog is a Dialog that show progress of change the column
+ * label
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
  */
-public class DuplicatesRowsProgressDialog extends Window implements DuplicatesRowsProgressListener {
-		public static final int STATUS_POLLING_DELAY = 1000;
-		protected String WIDTH = "400px";
-		protected String HEIGHT = "120px";
-		protected DuplicatesSession duplicatesSession;
-		protected EventBus eventBus;
-		protected DuplicatesRowsProgressUpdater progressUpdater;
-		protected TextButton ok;
-		protected TRId trId;
-		private ChangeTableWhy why;
-		
-		public DuplicatesRowsProgressDialog(DuplicatesSession duplicatesSession, EventBus eventBus) {
-			this.duplicatesSession=duplicatesSession;
-			this.eventBus=eventBus;
-			setWidth(WIDTH);
-			setHeight(HEIGHT);
-			setBodyBorder(false);
-			setResizable(true);
-			setModal(true);
-			setHeadingText("Duplicates Rows Progress");
-			
-			trId=null;
-			
-			FramedPanel panel=new FramedPanel();
-			panel.setHeaderVisible(false);
-			panel.setBodyBorder(false);
-			
-			VerticalLayoutContainer v = new VerticalLayoutContainer();
-			
-			
-			ProgressBar progressBar = new ProgressBar();
-			
-			ok=new TextButton("OK");
-			ok.addSelectHandler(new SelectHandler() {
-				
-				public void onSelect(SelectEvent event) {
-					updateInvocation();
-					
-				}
-			});
-			
-			v.add(progressBar, new VerticalLayoutData(1,
-					1, new Margins(5, 5, 5, 5)));
-			
-			panel.add(v);
-			panel.addButton(ok);
-			add(panel);
-			
-			
-			progressUpdater = new DuplicatesRowsProgressUpdater();
-			progressUpdater.addListener(new DuplicatesRowsProgressBarUpdater(progressBar));
+public class DuplicatesRowsProgressDialog extends Window implements
+		DuplicatesRowsProgressListener {
+	public static final int STATUS_POLLING_DELAY = 1000;
+	protected String WIDTH = "400px";
+	protected String HEIGHT = "120px";
+	protected DuplicatesSession duplicatesSession;
+	protected EventBus eventBus;
+	protected DuplicatesRowsProgressUpdater progressUpdater;
+	protected TextButton ok;
+	protected TRId trId;
+	private ChangeTableWhy why;
 
-			progressUpdater.addListener(this);
-			progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
-			show();
-			ok.setVisible(false);
-					
-		}
+	public DuplicatesRowsProgressDialog(DuplicatesSession duplicatesSession,
+			EventBus eventBus) {
+		this.duplicatesSession = duplicatesSession;
+		this.eventBus = eventBus;
+		setWidth(WIDTH);
+		setHeight(HEIGHT);
+		setBodyBorder(false);
+		setResizable(true);
+		setModal(true);
+		setHeadingText("Duplicates Rows Progress");
 
-		public void operationInitializing() {
-			// TODO Auto-generated method stub
-			
-		}
+		trId = null;
 
-		public void operationUpdate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+		FramedPanel panel = new FramedPanel();
+		panel.setHeaderVisible(false);
+		panel.setBodyBorder(false);
 
-		public void operationComplete(TRId trId) {
-			Log.debug("Operation Complete return: "+trId.toString());
-			this.trId=trId;
-			why=ChangeTableWhy.TABLEUPDATED;
-			updateInvocation();
-		}
+		VerticalLayoutContainer v = new VerticalLayoutContainer();
 
-		public void operationFailed(Throwable caught, String reason,
-				String failureDetails) {
+		ProgressBar progressBar = new ProgressBar();
+
+		ok = new TextButton("OK");
+		ok.addSelectHandler(new SelectHandler() {
+
+			public void onSelect(SelectEvent event) {
+				updateInvocation();
+
+			}
+		});
+
+		v.add(progressBar,
+				new VerticalLayoutData(1, 1, new Margins(5, 5, 5, 5)));
+
+		panel.add(v);
+		panel.addButton(ok);
+		add(panel);
+
+		progressUpdater = new DuplicatesRowsProgressUpdater();
+		progressUpdater.addListener(new DuplicatesRowsProgressBarUpdater(
+				progressBar));
+
+		progressUpdater.addListener(this);
+		progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
+		show();
+		ok.setVisible(false);
+
+	}
+
+	public void operationInitializing() {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationUpdate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationComplete(TRId trId) {
+		Log.debug("Operation Complete return: " + trId.toString());
+		this.trId = trId;
+		why = ChangeTableWhy.TABLEUPDATED;
+		updateInvocation();
+	}
+
+	public void operationFailed(Throwable caught, String reason,
+			String failureDetails) {
+		if (caught instanceof TDGWTSessionExpiredException) {
+			eventBus.fireEvent(new SessionExpiredEvent(
+					SessionExpiredType.EXPIREDONSERVER));
+		} else {
 			ok.setVisible(true);
-			this.trId=null;
+			this.trId = null;
 			UtilsGXT3.alert("Error Deleting Rows", reason);
 		}
-		
-		public void updateInvocation(){
-			if(trId!=null){
-				ChangeTableRequestEvent changeTableRequestEvent=
-						new ChangeTableRequestEvent(ChangeTableRequestType.DUPLICATES, trId,why);
-				eventBus.fireEvent(changeTableRequestEvent);
-			}
-			hide();
-		}
+	}
 
-		@Override
-		public void operationStopped(TRId trId,String reason, String details) {
-			Log.debug("Operation Stopped: ["+trId.toString()+", "+reason+", "+details+"]");
-			ok.setVisible(true);
-			this.trId=trId;
-			why=ChangeTableWhy.TABLECURATION;
+	public void updateInvocation() {
+		if (trId != null) {
+			ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
+					ChangeTableRequestType.DUPLICATES, trId, why);
+			eventBus.fireEvent(changeTableRequestEvent);
 		}
+		hide();
+	}
 
-		@Override
-		public void operationGeneratingView() {
-			// TODO Auto-generated method stub
-			
-		}
+	@Override
+	public void operationStopped(TRId trId, String reason, String details) {
+		Log.debug("Operation Stopped: [" + trId.toString() + ", " + reason
+				+ ", " + details + "]");
+		ok.setVisible(true);
+		this.trId = trId;
+		why = ChangeTableWhy.TABLECURATION;
+	}
 
-		@Override
-		public void operationValidate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+	@Override
+	public void operationGeneratingView() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public void operationValidate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/progress/EditRowProgressDialog.java

@@ -1,10 +1,13 @@
 package org.gcube.portlets.user.td.tablewidget.client.progress;
 
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.tablewidget.client.rows.EditRowPanel;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -20,123 +23,127 @@ import com.sencha.gxt.widget.core.client.event.SelectEvent;
 import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
 
 /**
- *  
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ * 
  */
-public class EditRowProgressDialog extends Window implements EditRowProgressListener {
-		public static final int STATUS_POLLING_DELAY = 1000;
-		protected String WIDTH = "400px";
-		protected String HEIGHT = "120px";
-		protected EditRowPanel parent;
-		protected EventBus eventBus;
-		protected EditRowProgressUpdater progressUpdater;
-		protected TextButton ok;
-		protected TRId trId;
-		private ChangeTableWhy why;
-		
-		public EditRowProgressDialog(EditRowPanel editRowPanel, EventBus eventBus) {
-			this.parent=editRowPanel;
-			this.eventBus=eventBus;
-			setWidth(WIDTH);
-			setHeight(HEIGHT);
-			setBodyBorder(false);
-			setResizable(true);
-			setModal(true);
-			setHeadingText("Rollback Progress");
-			
-			trId=null;
-			
-			FramedPanel panel=new FramedPanel();
-			panel.setHeaderVisible(false);
-			panel.setBodyBorder(false);
-			
-			VerticalLayoutContainer v = new VerticalLayoutContainer();
-			
-			
-			ProgressBar progressBar = new ProgressBar();
-			
-			ok=new TextButton("OK");
-			ok.addSelectHandler(new SelectHandler() {
-				
-				public void onSelect(SelectEvent event) {
-					updateInvocation();
-					
-				}
-			});
-			
-			v.add(progressBar, new VerticalLayoutData(1,
-					1, new Margins(5, 5, 5, 5)));
-			
-			panel.add(v);
-			panel.addButton(ok);
-			add(panel);
-			
-			
-			progressUpdater = new EditRowProgressUpdater();
-			progressUpdater.addListener(new EditRowProgressBarUpdater(progressBar));
+public class EditRowProgressDialog extends Window implements
+		EditRowProgressListener {
+	public static final int STATUS_POLLING_DELAY = 1000;
+	protected String WIDTH = "400px";
+	protected String HEIGHT = "120px";
+	protected EditRowPanel parent;
+	protected EventBus eventBus;
+	protected EditRowProgressUpdater progressUpdater;
+	protected TextButton ok;
+	protected TRId trId;
+	private ChangeTableWhy why;
 
-			progressUpdater.addListener(this);
-			progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
-			show();
-			ok.setVisible(false);
-					
-		}
+	public EditRowProgressDialog(EditRowPanel editRowPanel, EventBus eventBus) {
+		this.parent = editRowPanel;
+		this.eventBus = eventBus;
+		setWidth(WIDTH);
+		setHeight(HEIGHT);
+		setBodyBorder(false);
+		setResizable(true);
+		setModal(true);
+		setHeadingText("Rollback Progress");
 
-		public void operationInitializing() {
-			// TODO Auto-generated method stub
-			
-		}
+		trId = null;
 
-		public void operationUpdate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+		FramedPanel panel = new FramedPanel();
+		panel.setHeaderVisible(false);
+		panel.setBodyBorder(false);
 
-		public void operationComplete(TRId trId) {
-			Log.debug("Operation Complete return: "+trId.toString());
-			this.trId=trId;
-			why=ChangeTableWhy.TABLEUPDATED;
-			updateInvocation();
-		}
+		VerticalLayoutContainer v = new VerticalLayoutContainer();
+
+		ProgressBar progressBar = new ProgressBar();
+
+		ok = new TextButton("OK");
+		ok.addSelectHandler(new SelectHandler() {
+
+			public void onSelect(SelectEvent event) {
+				updateInvocation();
 
-		public void operationFailed(Throwable caught, String reason,
-				String failureDetails) {
-			ok.setVisible(true);
-			this.trId=null;
-			UtilsGXT3.alert("Error", reason);
-			
-		}
-		
-		public void updateInvocation(){
-			if(trId!=null){
-				ChangeTableRequestEvent changeTableRequestEvent=
-						new ChangeTableRequestEvent(ChangeTableRequestType.EDITROW, trId,why);
-				eventBus.fireEvent(changeTableRequestEvent);
 			}
-			parent.close();
-			hide();
-		}
+		});
 
-		@Override
-		public void operationStopped(TRId trId,String reason, String details) {
-			Log.debug("Operation Stopped: ["+trId.toString()+", "+reason+", "+details+"]");
+		v.add(progressBar,
+				new VerticalLayoutData(1, 1, new Margins(5, 5, 5, 5)));
+
+		panel.add(v);
+		panel.addButton(ok);
+		add(panel);
+
+		progressUpdater = new EditRowProgressUpdater();
+		progressUpdater.addListener(new EditRowProgressBarUpdater(progressBar));
+
+		progressUpdater.addListener(this);
+		progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
+		show();
+		ok.setVisible(false);
+
+	}
+
+	public void operationInitializing() {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationUpdate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationComplete(TRId trId) {
+		Log.debug("Operation Complete return: " + trId.toString());
+		this.trId = trId;
+		why = ChangeTableWhy.TABLEUPDATED;
+		updateInvocation();
+	}
+
+	public void operationFailed(Throwable caught, String reason,
+			String failureDetails) {
+		if (caught instanceof TDGWTSessionExpiredException) {
+			eventBus.fireEvent(new SessionExpiredEvent(
+					SessionExpiredType.EXPIREDONSERVER));
+		} else {
 			ok.setVisible(true);
-			this.trId=trId;
-			why=ChangeTableWhy.TABLECURATION;
+			this.trId = null;
+			UtilsGXT3.alert("Error", reason);
 		}
+	}
 
-		@Override
-		public void operationGeneratingView() {
-			// TODO Auto-generated method stub
-			
+	public void updateInvocation() {
+		if (trId != null) {
+			ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
+					ChangeTableRequestType.EDITROW, trId, why);
+			eventBus.fireEvent(changeTableRequestEvent);
 		}
+		parent.close();
+		hide();
+	}
 
-		@Override
-		public void operationValidate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+	@Override
+	public void operationStopped(TRId trId, String reason, String details) {
+		Log.debug("Operation Stopped: [" + trId.toString() + ", " + reason
+				+ ", " + details + "]");
+		ok.setVisible(true);
+		this.trId = trId;
+		why = ChangeTableWhy.TABLECURATION;
+	}
+
+	@Override
+	public void operationGeneratingView() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public void operationValidate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/progress/RollBackProgressDialog.java

@@ -1,10 +1,13 @@
 package org.gcube.portlets.user.td.tablewidget.client.progress;
 
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.history.RollBackSession;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
 import org.gcube.portlets.user.td.widgetcommonevent.client.event.ChangeTableRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.client.type.ChangeTableWhy;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -20,122 +23,128 @@ import com.sencha.gxt.widget.core.client.event.SelectEvent;
 import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
 
 /**
- *  
  * 
- * @author "Giancarlo Panichi" 
- * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
- *
+ * 
+ * @author "Giancarlo Panichi" <a
+ *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
+ * 
  */
-public class RollBackProgressDialog extends Window implements RollBackProgressListener {
-		public static final int STATUS_POLLING_DELAY = 1000;
-		protected String WIDTH = "400px";
-		protected String HEIGHT = "120px";
-		protected RollBackSession rollBackSession;
-		protected EventBus eventBus;
-		protected RollBackProgressUpdater progressUpdater;
-		protected TextButton ok;
-		protected TRId trId;
-		private ChangeTableWhy why;
-		
-		public RollBackProgressDialog(RollBackSession rollBackSession, EventBus eventBus) {
-			this.rollBackSession=rollBackSession;
-			this.eventBus=eventBus;
-			setWidth(WIDTH);
-			setHeight(HEIGHT);
-			setBodyBorder(false);
-			setResizable(true);
-			setModal(true);
-			setHeadingText("Rollback Progress");
-			
-			trId=null;
-			
-			FramedPanel panel=new FramedPanel();
-			panel.setHeaderVisible(false);
-			panel.setBodyBorder(false);
-			
-			VerticalLayoutContainer v = new VerticalLayoutContainer();
-			
-			
-			ProgressBar progressBar = new ProgressBar();
-			
-			ok=new TextButton("OK");
-			ok.addSelectHandler(new SelectHandler() {
-				
-				public void onSelect(SelectEvent event) {
-					updateInvocation();
-					
-				}
-			});
-			
-			v.add(progressBar, new VerticalLayoutData(1,
-					1, new Margins(5, 5, 5, 5)));
-			
-			panel.add(v);
-			panel.addButton(ok);
-			add(panel);
-			
-			
-			progressUpdater = new RollBackProgressUpdater();
-			progressUpdater.addListener(new RollBackProgressBarUpdater(progressBar));
+public class RollBackProgressDialog extends Window implements
+		RollBackProgressListener {
+	public static final int STATUS_POLLING_DELAY = 1000;
+	protected String WIDTH = "400px";
+	protected String HEIGHT = "120px";
+	protected RollBackSession rollBackSession;
+	protected EventBus eventBus;
+	protected RollBackProgressUpdater progressUpdater;
+	protected TextButton ok;
+	protected TRId trId;
+	private ChangeTableWhy why;
 
-			progressUpdater.addListener(this);
-			progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
-			show();
-			ok.setVisible(false);
-					
-		}
+	public RollBackProgressDialog(RollBackSession rollBackSession,
+			EventBus eventBus) {
+		this.rollBackSession = rollBackSession;
+		this.eventBus = eventBus;
+		setWidth(WIDTH);
+		setHeight(HEIGHT);
+		setBodyBorder(false);
+		setResizable(true);
+		setModal(true);
+		setHeadingText("Rollback Progress");
 
-		public void operationInitializing() {
-			// TODO Auto-generated method stub
-			
-		}
+		trId = null;
 
-		public void operationUpdate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+		FramedPanel panel = new FramedPanel();
+		panel.setHeaderVisible(false);
+		panel.setBodyBorder(false);
 
-		public void operationComplete(TRId trId) {
-			Log.debug("Operation Complete return: "+trId.toString());
-			this.trId=trId;
-			why=ChangeTableWhy.TABLEUPDATED;
-			updateInvocation();
-		}
+		VerticalLayoutContainer v = new VerticalLayoutContainer();
+
+		ProgressBar progressBar = new ProgressBar();
+
+		ok = new TextButton("OK");
+		ok.addSelectHandler(new SelectHandler() {
+
+			public void onSelect(SelectEvent event) {
+				updateInvocation();
 
-		public void operationFailed(Throwable caught, String reason,
-				String failureDetails) {
-			ok.setVisible(true);
-			this.trId=null;
-			UtilsGXT3.alert("Error in RollBack", reason);
-			
-		}
-		
-		public void updateInvocation(){
-			if(trId!=null){
-				ChangeTableRequestEvent changeTableRequestEvent=
-						new ChangeTableRequestEvent(ChangeTableRequestType.DELETEROWS, trId,why);
-				eventBus.fireEvent(changeTableRequestEvent);
 			}
-			hide();
-		}
+		});
 
-		@Override
-		public void operationStopped(TRId trId,String reason, String details) {
-			Log.debug("Operation Stopped: ["+trId.toString()+", "+reason+", "+details+"]");
+		v.add(progressBar,
+				new VerticalLayoutData(1, 1, new Margins(5, 5, 5, 5)));
+
+		panel.add(v);
+		panel.addButton(ok);
+		add(panel);
+
+		progressUpdater = new RollBackProgressUpdater();
+		progressUpdater
+				.addListener(new RollBackProgressBarUpdater(progressBar));
+
+		progressUpdater.addListener(this);
+		progressUpdater.scheduleRepeating(STATUS_POLLING_DELAY);
+		show();
+		ok.setVisible(false);
+
+	}
+
+	public void operationInitializing() {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationUpdate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
+
+	public void operationComplete(TRId trId) {
+		Log.debug("Operation Complete return: " + trId.toString());
+		this.trId = trId;
+		why = ChangeTableWhy.TABLEUPDATED;
+		updateInvocation();
+	}
+
+	public void operationFailed(Throwable caught, String reason,
+			String failureDetails) {
+		if (caught instanceof TDGWTSessionExpiredException) {
+			eventBus.fireEvent(new SessionExpiredEvent(
+					SessionExpiredType.EXPIREDONSERVER));
+		} else {
 			ok.setVisible(true);
-			this.trId=trId;
-			why=ChangeTableWhy.TABLECURATION;
+			this.trId = null;
+			UtilsGXT3.alert("Error in RollBack", reason);
 		}
+	}
 
-		@Override
-		public void operationGeneratingView() {
-			// TODO Auto-generated method stub
-			
+	public void updateInvocation() {
+		if (trId != null) {
+			ChangeTableRequestEvent changeTableRequestEvent = new ChangeTableRequestEvent(
+					ChangeTableRequestType.DELETEROWS, trId, why);
+			eventBus.fireEvent(changeTableRequestEvent);
 		}
+		hide();
+	}
 
-		@Override
-		public void operationValidate(float elaborated) {
-			// TODO Auto-generated method stub
-			
-		}
+	@Override
+	public void operationStopped(TRId trId, String reason, String details) {
+		Log.debug("Operation Stopped: [" + trId.toString() + ", " + reason
+				+ ", " + details + "]");
+		ok.setVisible(true);
+		this.trId = trId;
+		why = ChangeTableWhy.TABLECURATION;
+	}
+
+	@Override
+	public void operationGeneratingView() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public void operationValidate(float elaborated) {
+		// TODO Auto-generated method stub
+
+	}
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DeleteRows.java

@@ -3,9 +3,12 @@ package org.gcube.portlets.user.td.tablewidget.client.rows;
 import java.util.ArrayList;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.rows.DeleteRowsSession;
 import org.gcube.portlets.user.td.tablewidget.client.progress.DeleteRowsProgressDialog;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -16,46 +19,50 @@ import com.google.web.bindery.event.shared.EventBus;
  * Delete rows in table
  * 
  * @author "Giancarlo Panichi"
- *
+ * 
  */
 public class DeleteRows {
 	protected TRId trId;
 	protected EventBus eventBus;
 	protected ArrayList<String> rows;
 	protected DeleteRowsSession deleteRowsSession;
-    protected DeleteRowsProgressDialog deleteRowsProgressDialog;
-    
-	public DeleteRows(TRId trId, ArrayList<String> rows,EventBus eventBus) {
+	protected DeleteRowsProgressDialog deleteRowsProgressDialog;
+
+	public DeleteRows(TRId trId, ArrayList<String> rows, EventBus eventBus) {
 		this.trId = trId;
-		this.rows=rows;
+		this.rows = rows;
 		this.eventBus = eventBus;
 	}
-	
-	public void delete(){
-		deleteRowsSession =new DeleteRowsSession(trId, rows);
+
+	public void delete() {
+		deleteRowsSession = new DeleteRowsSession(trId, rows);
 		onDelete();
 	}
-	
-	protected void onDelete(){
-			TDGWTServiceAsync.INSTANCE.startDeleteRows(
-					deleteRowsSession, new AsyncCallback<Void>() {
 
-						public void onFailure(Throwable caught) {
+	protected void onDelete() {
+		TDGWTServiceAsync.INSTANCE.startDeleteRows(deleteRowsSession,
+				new AsyncCallback<Void>() {
+
+					public void onFailure(Throwable caught) {
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
 							Log.debug("Delete Rows Error: "
 									+ caught.getLocalizedMessage());
-							UtilsGXT3.alert("Error Deleting Rows",
-									"Error in invocation Delete Rows operation!");
-
+							UtilsGXT3
+									.alert("Error Deleting Rows",
+											"Error in invocation Delete Rows operation!");
 						}
+					}
 
-						public void onSuccess(Void result) {
-							deleteRowsProgressDialog= new DeleteRowsProgressDialog(deleteRowsSession, eventBus);
-						}
+					public void onSuccess(Void result) {
+						deleteRowsProgressDialog = new DeleteRowsProgressDialog(
+								deleteRowsSession, eventBus);
+					}
 
-					});
+				});
 
-		
 	}
-	
-	
+
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/DuplicatesRowsPanel.java

@@ -4,11 +4,14 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.rows.DuplicatesSession;
 import org.gcube.portlets.user.td.tablewidget.client.progress.DuplicatesRowsProgressDialog;
 import org.gcube.portlets.user.td.tablewidget.client.properties.ColumnDataProperties;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -115,16 +118,16 @@ public class DuplicatesRowsPanel extends FramedPanel {
 		sm.setSelectionMode(SelectionMode.MULTI);
 		grid.setLoader(loader);
 		grid.setSelectionModel(sm);
-		//grid.getView().setAutoExpandColumn(labelCol);
+		// grid.getView().setAutoExpandColumn(labelCol);
 		grid.setHeight(360);
 		grid.getView().setStripeRows(true);
 		grid.getView().setColumnLines(true);
-	    grid.getView().setAutoFill(true);
+		grid.getView().setAutoFill(true);
 		grid.setBorders(false);
 		grid.setLoadMask(true);
 		grid.setColumnReordering(true);
 		grid.setColumnResize(false);
-		
+
 		// Delete Button
 		deleteButton = new TextButton("Delete");
 		SelectHandler deleteHandler = new SelectHandler() {
@@ -146,21 +149,19 @@ public class DuplicatesRowsPanel extends FramedPanel {
 			}
 		};
 		validatesButton.addSelectHandler(validatesHandler);
-		
 
 		FieldLabel columnsLabel = new FieldLabel(null, "Columns");
 		columnsLabel.getElement().applyStyles("font-weight:bold");
-		HBoxLayoutContainer hBox=new HBoxLayoutContainer();
-		hBox.add(validatesButton, new BoxLayoutData(new Margins(2,5,2,5)));
-		hBox.add(deleteButton,new BoxLayoutData(new Margins(2,5,2,5)));
-		
-		
+		HBoxLayoutContainer hBox = new HBoxLayoutContainer();
+		hBox.add(validatesButton, new BoxLayoutData(new Margins(2, 5, 2, 5)));
+		hBox.add(deleteButton, new BoxLayoutData(new Margins(2, 5, 2, 5)));
+
 		VerticalLayoutContainer v = new VerticalLayoutContainer();
 		v.setScrollMode(ScrollMode.AUTO);
-		v.add(columnsLabel, new VerticalLayoutData(-1, -1, new Margins(2,1,5,1)));
+		v.add(columnsLabel, new VerticalLayoutData(-1, -1, new Margins(2, 1, 5,
+				1)));
 		v.add(grid, new VerticalLayoutData(1, -1, new Margins(0)));
-		v.add(hBox, new VerticalLayoutData(-1, -1, new Margins(10, 0,
-				10, 0)));
+		v.add(hBox, new VerticalLayoutData(-1, -1, new Margins(10, 0, 10, 0)));
 		add(v, new VerticalLayoutData(-1, -1, new Margins(0)));
 
 	}
@@ -182,10 +183,15 @@ public class DuplicatesRowsPanel extends FramedPanel {
 				new AsyncCallback<ArrayList<ColumnData>>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("load columns failure:"
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error retrieving columns",
-								"Error retrieving columns");
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("load columns failure:"
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error retrieving columns",
+									"Error retrieving columns");
+						}
 						callback.onFailure(caught);
 					}
 
@@ -201,10 +207,9 @@ public class DuplicatesRowsPanel extends FramedPanel {
 	}
 
 	protected void onDeleteDuplicate() {
-		ArrayList<ColumnData> col=getSelectedItems();
-		if(col==null||col.size()<1){
-			UtilsGXT3.alert("Attention",
-					"Attention no column selected!");
+		ArrayList<ColumnData> col = getSelectedItems();
+		if (col == null || col.size() < 1) {
+			UtilsGXT3.alert("Attention", "Attention no column selected!");
 			return;
 		}
 		duplicatesSession = new DuplicatesSession(trId, col,
@@ -214,11 +219,16 @@ public class DuplicatesRowsPanel extends FramedPanel {
 				new AsyncCallback<Void>() {
 
 					public void onFailure(Throwable caught) {
-						Log.debug("Delete Duplicates Error: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error Deleting Rows",
-								"Error in invocation Delete Duplicates operation!");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.debug("Delete Duplicates Error: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3
+									.alert("Error Deleting Rows",
+											"Error in invocation Delete Duplicates operation!");
+						}
 					}
 
 					public void onSuccess(Void result) {
@@ -229,13 +239,11 @@ public class DuplicatesRowsPanel extends FramedPanel {
 				});
 
 	}
-	
-	
+
 	protected void onValidatesDuplicate() {
-		ArrayList<ColumnData> col=getSelectedItems();
-		if(col==null||col.size()<1){
-			UtilsGXT3.alert("Attention",
-					"Attention no column selected!");
+		ArrayList<ColumnData> col = getSelectedItems();
+		if (col == null || col.size() < 1) {
+			UtilsGXT3.alert("Attention", "Attention no column selected!");
 			return;
 		}
 		duplicatesSession = new DuplicatesSession(trId, col,
@@ -245,11 +253,16 @@ public class DuplicatesRowsPanel extends FramedPanel {
 				new AsyncCallback<Void>() {
 
 					public void onFailure(Throwable caught) {
-						Log.debug("Validates Duplicates Error: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error Deleting Rows",
-								"Error in invocation Validates Duplicates operation!");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.debug("Validates Duplicates Error: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3
+									.alert("Error Deleting Rows",
+											"Error in invocation Validates Duplicates operation!");
+						}
 					}
 
 					public void onSuccess(Void result) {
@@ -260,8 +273,5 @@ public class DuplicatesRowsPanel extends FramedPanel {
 				});
 
 	}
-	
-
-	
 
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/rows/EditRowPanel.java

@@ -15,6 +15,8 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.rows.EditRowSession;
 import org.gcube.portlets.user.td.tablewidget.client.progress.EditRowProgressDialog;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.CellData;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.grid.model.RowRaw;
@@ -72,9 +74,9 @@ public class EditRowPanel extends FramedPanel {
 	protected ArrayList<ColumnData> columns;
 	protected RowRaw rowRaw;
 	protected boolean editRow;
-	
+
 	protected EditRowProgressDialog editRowProgressDialog;
-	
+
 	protected VerticalLayoutContainer v;
 	private TextButton btnSave;
 	private TextButton btnClose;
@@ -195,11 +197,15 @@ public class EditRowPanel extends FramedPanel {
 				new AsyncCallback<ArrayList<ColumnData>>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("load columns failure:"
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert("Error retrieving columns",
-								"Error retrieving columns");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("load columns failure:"
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert("Error retrieving columns",
+									"Error retrieving columns");
+						}
 					}
 
 					public void onSuccess(ArrayList<ColumnData> result) {
@@ -587,33 +593,31 @@ public class EditRowPanel extends FramedPanel {
 			parent.close();
 		}
 	}
-	
-	
 
 	protected void callEditRow(EditRowSession editRowSession) {
-		final EditRowPanel panel=this;
-		
-		TDGWTServiceAsync.INSTANCE.startEditRow(editRowSession,new AsyncCallback<Void>() {
+		final EditRowPanel panel = this;
 
-			public void onFailure(Throwable caught) {
-				Log.debug("EditRow: "
-						+ caught.getLocalizedMessage());
-				if(caught instanceof TDGWTSessionExpiredException){
-					UtilsGXT3.alert("Attention",caught.getLocalizedMessage());
-				} else {
-					UtilsGXT3.alert("Error",
-						"Error in operation invocation!");
-				}
-			}
+		TDGWTServiceAsync.INSTANCE.startEditRow(editRowSession,
+				new AsyncCallback<Void>() {
 
-			public void onSuccess(Void result) {
-				editRowProgressDialog = new EditRowProgressDialog(
-						panel, eventBus);
-			}
+					public void onFailure(Throwable caught) {
+						Log.debug("EditRow: " + caught.getLocalizedMessage());
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							UtilsGXT3.alert("Error",
+									"Error in operation invocation!");
+						}
+					}
+
+					public void onSuccess(Void result) {
+						editRowProgressDialog = new EditRowProgressDialog(
+								panel, eventBus);
+					}
+
+				});
 
-		
-		});
-	
 	}
 
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTablePanel.java

@@ -4,12 +4,15 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.table.Validations;
 import org.gcube.portlets.user.td.gwtservice.shared.tr.table.metadata.TabValidationsMetadata;
 import org.gcube.portlets.user.td.tablewidget.client.properties.ValidationsProperties;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -54,16 +57,15 @@ public class ValidationsTablePanel extends FramedPanel {
 	protected ListLoader<ListLoadConfig, ListLoadResult<Validations>> loader;
 	protected Grid<Validations> grid;
 	private boolean drawed;
-	
+
 	public ValidationsTablePanel(EventBus eventBus) {
 		super();
 		this.eventBus = eventBus;
 		forceLayoutOnResize = true;
 		retrieveCurrentTR();
-	
+
 	}
-	
-	
+
 	public ValidationsTablePanel(TRId trId, EventBus eventBus) {
 		super();
 		this.trId = trId;
@@ -77,7 +79,7 @@ public class ValidationsTablePanel extends FramedPanel {
 		init();
 		create();
 	}
-	
+
 	protected void init() {
 		setWidth(WIDTH);
 		setHeight(HEIGHT);
@@ -90,19 +92,18 @@ public class ValidationsTablePanel extends FramedPanel {
 
 		ColumnConfig<Validations, String> descriptionCol = new ColumnConfig<Validations, String>(
 				props.description(), 168, "Description");
-		
+
 		descriptionCol.setCell(new AbstractCell<String>() {
 
 			@Override
 			public void render(Context context, String value, SafeHtmlBuilder sb) {
-				sb.appendHtmlConstant("<span title='"+value+"'>"
-						+ value + "</span>");
+				sb.appendHtmlConstant("<span title='" + value + "'>" + value
+						+ "</span>");
 
 			}
 
 		});
 
-		
 		ColumnConfig<Validations, Boolean> validCol = new ColumnConfig<Validations, Boolean>(
 				props.valid(), 28, "Valid");
 		validCol.setCell(new AbstractCell<Boolean>() {
@@ -176,7 +177,6 @@ public class ValidationsTablePanel extends FramedPanel {
 		grid.getView().setAutoExpandColumn(descriptionCol);
 		grid.getView().setEmptyText("No validation");
 
-		
 		add(grid, new MarginData(0));
 
 		onResize();
@@ -190,11 +190,16 @@ public class ValidationsTablePanel extends FramedPanel {
 				new AsyncCallback<TabValidationsMetadata>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("Load validations metadata failure: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert(
-								"Error retrieving validations metadata",
-								"Error retrieving validations metadata");
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("Load validations metadata failure: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert(
+									"Error retrieving validations metadata",
+									"Error retrieving validations metadata");
+						}
 						callback.onFailure(caught);
 					}
 
@@ -218,28 +223,29 @@ public class ValidationsTablePanel extends FramedPanel {
 
 	}
 
-	
-	
 	public void update() {
 		retrieveCurrentTR();
 		loader.load();
 	}
-	
+
 	public void update(TRId trId) {
-		this.trId=trId;
+		this.trId = trId;
 		loader.load();
 	}
-	
 
 	protected void retrieveCurrentTR() {
 		TDGWTServiceAsync.INSTANCE.getCurrentTRId(new AsyncCallback<TRId>() {
 
 			public void onFailure(Throwable caught) {
-				Log.error("Error retrieving current TRId: "
-						+ caught.getLocalizedMessage());
-				UtilsGXT3.alert("Error",
-						"Error retrieving current tabular resource id");
-
+				if (caught instanceof TDGWTSessionExpiredException) {
+					eventBus.fireEvent(new SessionExpiredEvent(
+							SessionExpiredType.EXPIREDONSERVER));
+				} else {
+					Log.error("Error retrieving current TRId: "
+							+ caught.getLocalizedMessage());
+					UtilsGXT3.alert("Error",
+							"Error retrieving current tabular resource id");
+				}
 			}
 
 			public void onSuccess(TRId result) {
@@ -253,6 +259,5 @@ public class ValidationsTablePanel extends FramedPanel {
 
 		});
 	}
-	
 
 }

src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
+import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
 import org.gcube.portlets.user.td.gwtservice.shared.task.ValidationsTasksMetadata;
 import org.gcube.portlets.user.td.tablewidget.client.resources.ResourceBundle;
 import org.gcube.portlets.user.td.tablewidget.client.util.UtilsGXT3;
@@ -11,6 +12,8 @@ import org.gcube.portlets.user.td.tablewidget.client.validation.tree.BaseDto;
 import org.gcube.portlets.user.td.tablewidget.client.validation.tree.FolderDto;
 import org.gcube.portlets.user.td.tablewidget.client.validation.tree.TreeDataGenerator;
 import org.gcube.portlets.user.td.tablewidget.client.validation.tree.ValidationDto;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 import com.sencha.gxt.widget.core.client.event.CollapseItemEvent.CollapseItemHandler;
 import com.allen_sauer.gwt.log.client.Log;
@@ -108,8 +111,8 @@ public class ValidationsTasksPanel extends FramedPanel {
 	protected void create() {
 		con = new VerticalLayoutContainer();
 		con.setScrollMode(ScrollMode.AUTO);
-		//con.setAdjustForScroll(true);
-		
+		// con.setAdjustForScroll(true);
+
 		store = new TreeStore<BaseDto>(new KeyProvider());
 
 		FolderDto root = gen.getRoot();
@@ -149,7 +152,7 @@ public class ValidationsTasksPanel extends FramedPanel {
 		 * @Override public String getPath() { return "description"; } });
 		 * cc2.setHeader("Description");
 		 */
-		
+
 		ColumnConfig<BaseDto, Boolean> cc3 = new ColumnConfig<BaseDto, Boolean>(
 				new ValueProvider<BaseDto, Boolean>() {
 
@@ -213,8 +216,7 @@ public class ValidationsTasksPanel extends FramedPanel {
 		tree.setLoadMask(true);
 		tree.setColumnResize(true);
 		tree.getView().setAutoExpandColumn(cc1);
-		
-		
+
 		IconProvider<BaseDto> iconProvider = new IconProvider<BaseDto>() {
 
 			@Override
@@ -238,26 +240,25 @@ public class ValidationsTasksPanel extends FramedPanel {
 			}
 		};
 		tree.setIconProvider(iconProvider);
-		
+
 		tree.addExpandHandler(new ExpandItemHandler<BaseDto>() {
 
 			@Override
 			public void onExpand(ExpandItemEvent<BaseDto> event) {
 				forceLayout();
-				
+
 			}
 		});
-		
+
 		tree.addCollapseHandler(new CollapseItemHandler<BaseDto>() {
 
 			@Override
 			public void onCollapse(CollapseItemEvent<BaseDto> event) {
 				forceLayout();
-				
+
 			}
 		});
-		
-		
+
 		ToolBar toolBar = new ToolBar();
 
 		TextButton btnExpandAll = new TextButton();
@@ -273,8 +274,7 @@ public class ValidationsTasksPanel extends FramedPanel {
 			}
 		});
 		toolBar.add(btnExpandAll);
-		
-		
+
 		TextButton btnCollapseAll = new TextButton();
 		// btnReload.setText("Expand All");
 		btnCollapseAll.setIcon(ResourceBundle.INSTANCE.expandAll12());
@@ -288,16 +288,12 @@ public class ValidationsTasksPanel extends FramedPanel {
 			}
 		});
 		toolBar.add(btnCollapseAll);
-		
-		
-		
+
 		con.add(toolBar, new VerticalLayoutData(1, -1));
 		con.add(tree, new VerticalLayoutData(1, -1));
-		
-		add(con,new MarginData(0));
-		
-		
-		
+
+		add(con, new MarginData(0));
+
 	}
 
 	protected void retrieveValidations() {
@@ -306,12 +302,16 @@ public class ValidationsTasksPanel extends FramedPanel {
 				new AsyncCallback<ValidationsTasksMetadata>() {
 
 					public void onFailure(Throwable caught) {
-						Log.error("Load validations metadata failure: "
-								+ caught.getLocalizedMessage());
-						UtilsGXT3.alert(
-								"Error retrieving validations metadata",
-								"Error retrieving validations metadata");
-
+						if (caught instanceof TDGWTSessionExpiredException) {
+							eventBus.fireEvent(new SessionExpiredEvent(
+									SessionExpiredType.EXPIREDONSERVER));
+						} else {
+							Log.error("Load validations metadata failure: "
+									+ caught.getLocalizedMessage());
+							UtilsGXT3.alert(
+									"Error retrieving validations metadata",
+									"Error retrieving validations metadata");
+						}
 					}
 
 					public void onSuccess(ValidationsTasksMetadata result) {
@@ -338,11 +338,15 @@ public class ValidationsTasksPanel extends FramedPanel {
 		TDGWTServiceAsync.INSTANCE.getCurrentTRId(new AsyncCallback<TRId>() {
 
 			public void onFailure(Throwable caught) {
-				Log.error("Error retrieving current TRId: "
-						+ caught.getLocalizedMessage());
-				UtilsGXT3.alert("Error",
-						"Error retrieving current tabular resource id");
-
+				if (caught instanceof TDGWTSessionExpiredException) {
+					eventBus.fireEvent(new SessionExpiredEvent(
+							SessionExpiredType.EXPIREDONSERVER));
+				} else {
+					Log.error("Error retrieving current TRId: "
+							+ caught.getLocalizedMessage());
+					UtilsGXT3.alert("Error",
+							"Error retrieving current tabular resource id");
+				}
 			}
 
 			public void onSuccess(TRId result) {