updated icons and breadcrumb

git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/widgets/workspace-explorer@167659 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/Util.java

@@ -4,7 +4,7 @@
 package org.gcube.portlets.widgets.wsexplorer.client;
 
 import org.gcube.portlets.widgets.wsexplorer.client.resources.old.WorkspaceLightTreeResources;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.google.gwt.core.shared.GWT;
@@ -67,25 +67,29 @@ public class Util {
 	 * @param type the item type.
 	 * @return the image.
 	 */
-	public static ImageResource getImage(ItemDTO item)
+	public static ImageResource getImage(Item item) {
-	{
 		if(item==null)
 			return null;
 
 		switch (item.getType()) {
 //			case ROOT: return WorkspaceLightTreeResources.INSTANCE.root();
-			case FOLDER: {
+			case FOLDER: 
-				if (item.isSharedFolder()) return WorkspaceLightTreeResources.INSTANCE.sharedFolder();
+			case PRIVATE_FOLDER:
-				else return WorkspaceLightTreeResources.INSTANCE.folder();
+				return WorkspaceLightTreeResources.INSTANCE.folder();
-			}
+			case SHARED_FOLDER: return WorkspaceLightTreeResources.INSTANCE.sharedFolder();
+			case VRE_FOLDER: return WorkspaceLightTreeResources.INSTANCE.sharedFolder();
 			case EXTERNAL_IMAGE: return WorkspaceLightTreeResources.INSTANCE.external_image();
 			case EXTERNAL_FILE: return WorkspaceLightTreeResources.INSTANCE.external_file();
 			case EXTERNAL_PDF_FILE: return WorkspaceLightTreeResources.INSTANCE.external_pdf();
+			case CSV: return WorkspaceLightTreeResources.INSTANCE.CSV();
 			case EXTERNAL_URL: return WorkspaceLightTreeResources.INSTANCE.external_url();
 			case REPORT_TEMPLATE: return WorkspaceLightTreeResources.INSTANCE.report_template();
 			case REPORT: return WorkspaceLightTreeResources.INSTANCE.report();
 			case QUERY: return WorkspaceLightTreeResources.INSTANCE.query();
-			case DOCUMENT: return WorkspaceLightTreeResources.INSTANCE.document();
+			case CALENDAR: return WorkspaceLightTreeResources.INSTANCE.CALENDAR();
+			case DOCUMENT: return WorkspaceLightTreeResources.INSTANCE.DOC();
+			case PRESENTATION: return WorkspaceLightTreeResources.INSTANCE.PPT();
+			case SPREADSHEET: return WorkspaceLightTreeResources.INSTANCE.XLS();
 			case METADATA: return WorkspaceLightTreeResources.INSTANCE.metadata();
 			case PDF_DOCUMENT: return WorkspaceLightTreeResources.INSTANCE.pdf_document();
 			case IMAGE_DOCUMENT: return WorkspaceLightTreeResources.INSTANCE.image_document();

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/WorkspaceExplorerConstants.java

@@ -26,6 +26,8 @@ public class WorkspaceExplorerConstants {
 	public static final String HOME_LABEL = "Home";
 
 	public static final String WORKSPACE_MY_SPECIAL_FOLDERS_PATH = "/Workspace/MySpecialFolders";
+	
+	public static final String WORKSPACE_FOLDER_EMPTY_MESSAGE = "This folder is empty";
 
 	// DIALOGS
 	public static final String SAVE = "Save";

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/WorkspaceExplorerController.java

@@ -3,6 +3,7 @@
  */
 package org.gcube.portlets.widgets.wsexplorer.client;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import org.gcube.portlets.widgets.wsexplorer.client.event.BreadcrumbClickEvent;
@@ -27,7 +28,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.view.CreateFolderForm;
 import org.gcube.portlets.widgets.wsexplorer.client.view.Navigation;
 import org.gcube.portlets.widgets.wsexplorer.client.view.WorkspaceExplorer;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemCategory;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
@@ -70,7 +71,7 @@ public class WorkspaceExplorerController implements EventHandler {
 		bindEvents();
 		//As default all items are showable and selectable
 		wsExplorer = new WorkspaceExplorer(eventBus, ItemType.values(), ItemType.values());
-		wsExplorer.initTable(new ListDataProvider<ItemDTO>());
+		wsExplorer.initTable(new ListDataProvider<Item>());
 		initExplorerPanel(heightPanel);
 	}
 
@@ -86,7 +87,7 @@ public class WorkspaceExplorerController implements EventHandler {
 		bindEvents();
 		//As default all items are showable and selectable
 		wsExplorer = new WorkspaceExplorer(eventBus, filterCriteria, ItemType.values(), ItemType.values(), null, false, null);
-		wsExplorer.initTable(new ListDataProvider<ItemDTO>());
+		wsExplorer.initTable(new ListDataProvider<Item>());
 		initExplorerPanel(heightPanel);
 	}
 
@@ -105,7 +106,7 @@ public class WorkspaceExplorerController implements EventHandler {
 		bindEvents();
 		//As default all items are showable and selectable
 		wsExplorer = new WorkspaceExplorer(eventBus, filterCriteria, ItemType.values(), ItemType.values(), showProperties, false, null);
-		wsExplorer.initTable(new ListDataProvider<ItemDTO>());
+		wsExplorer.initTable(new ListDataProvider<Item>());
 		initExplorerPanel(heightPanel);
 	}
 
@@ -133,13 +134,13 @@ public class WorkspaceExplorerController implements EventHandler {
 
 				if(loadFolderEvent.getTargetItem()!=null){
 
-					if(loadFolderEvent.getTargetItem() instanceof ItemDTO){
+					if(loadFolderEvent.getTargetItem() instanceof Item){
-						ItemDTO item = (ItemDTO) loadFolderEvent.getTargetItem();
+						Item item = (Item) loadFolderEvent.getTargetItem();
 
 						if(item.isFolder()){
 							try {
 								wsExplorer.loadFolder(item, false, -1, -1, true);
-								loadParentBreadcrumbByItemId(item.getId(), true);
+								loadParentBreadcrumbByItemId(item.getId(), item.getName(), true);
 
 								if(item.isSpecialFolder())
 									navigation.setVisibleNewFolderFacility(false);
@@ -168,7 +169,7 @@ public class WorkspaceExplorerController implements EventHandler {
 
 			@Override
 			public void onBreadcrumbClick(BreadcrumbClickEvent breadcrumbClickEvent) {
-				eventBus.fireEvent(new LoadFolderEvent<ItemDTO>(breadcrumbClickEvent.getTargetItem()));
+				eventBus.fireEvent(new LoadFolderEvent<Item>(breadcrumbClickEvent.getTargetItem()));
 			}
 		});
 
@@ -178,7 +179,7 @@ public class WorkspaceExplorerController implements EventHandler {
 			public void onLoadRoot(LoadRootEvent loadRootEvent) {
 				wsExplorer.loadRoot();
 
-				WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.HOME, new AsyncCallback<ItemDTO>() {
+				WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.HOME, new AsyncCallback<Item>() {
 
 					@Override
 					public void onFailure(Throwable caught) {
@@ -188,7 +189,7 @@ public class WorkspaceExplorerController implements EventHandler {
 					}
 
 					@Override
-					public void onSuccess(ItemDTO result) {
+					public void onSuccess(Item result) {
 						result.setName(WorkspaceExplorerConstants.HOME_LABEL); //FORCE SET NAME LIKE "HOME_LABEL"
 						breadcrumbs.init(result);
 						navigation.setVisibleNewFolderFacility(true);
@@ -212,8 +213,8 @@ public class WorkspaceExplorerController implements EventHandler {
 			public <T> void onClick(final ClickItemEvent<T> clickItemEvent) {
 
 				if(clickItemEvent.getItem()!=null){
-					if (clickItemEvent.getItem() instanceof ItemDTO) {
+					if (clickItemEvent.getItem() instanceof Item) {
-						ItemDTO item = (ItemDTO) clickItemEvent.getItem();
+						Item item = (Item) clickItemEvent.getItem();
 						updateMoreInfo(item);
 					}
 				}
@@ -226,7 +227,7 @@ public class WorkspaceExplorerController implements EventHandler {
 			public void onLoadMySpecialFolder(LoadMySpecialFolderEvent loadMySpecialFolderEvent) {
 				wsExplorer.loadMySpecialFolder();
 
-				WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.VRE_FOLDER, new AsyncCallback<ItemDTO>() {
+				WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.VRE_FOLDER, new AsyncCallback<Item>() {
 
 					@Override
 					public void onFailure(Throwable caught) {
@@ -235,7 +236,7 @@ public class WorkspaceExplorerController implements EventHandler {
 					}
 
 					@Override
-					public void onSuccess(ItemDTO result) {
+					public void onSuccess(Item result) {
 						breadcrumbs.init(result);
 						navigation.setVisibleNewFolderFacility(false);
 						clearMoreInfo();
@@ -256,7 +257,7 @@ public class WorkspaceExplorerController implements EventHandler {
 
 						showMessage(AlertType.INFO, "Creating folder \""+folderName+"\"");
 
-						WorkspaceExplorerConstants.workspaceNavigatorService.createFolder(folderName, "", breadcrumbs.getLastParent().getId(), new AsyncCallback<ItemDTO>() {
+						WorkspaceExplorerConstants.workspaceNavigatorService.createFolder(folderName, "", breadcrumbs.getLastParent().getId(), new AsyncCallback<Item>() {
 
 							@Override
 							public void onFailure(Throwable caught) {
@@ -267,7 +268,7 @@ public class WorkspaceExplorerController implements EventHandler {
 							}
 
 							@Override
-							public void onSuccess(ItemDTO result) {
+							public void onSuccess(Item result) {
 								hideMessage();
 								if(result!=null){
 									wsExplorer.addItemToExplorer(result);
@@ -296,11 +297,11 @@ public class WorkspaceExplorerController implements EventHandler {
 	 * @param itemIdentifier the item identifier
 	 * @param includeItemAsParent the include item as parent
 	 */
-	protected void loadParentBreadcrumbByItemId(final String itemIdentifier, boolean includeItemAsParent){
+	protected void loadParentBreadcrumbByItemId(final String itemIdentifier, String itemName, boolean includeItemAsParent){
 
 		GWT.log("Reload Parent Breadcrumb: [Item id: "+itemIdentifier+"]");
 
-		WorkspaceExplorerConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifier(itemIdentifier, includeItemAsParent, new AsyncCallback<List<ItemDTO>>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifier(itemIdentifier,  itemName, includeItemAsParent, new AsyncCallback<ArrayList<Item>>() {
 
 			@Override
 			public void onFailure(Throwable caught) {
@@ -309,7 +310,10 @@ public class WorkspaceExplorerController implements EventHandler {
 			}
 
 			@Override
-			public void onSuccess(List<ItemDTO> result) {
+			public void onSuccess(ArrayList<Item> result) {
+				for (Item item : result) {
+					GWT.log("->"+item.getName());
+				}
 				if(result!=null){
 					breadcrumbs.setPath(result);
 					clearMoreInfo();
@@ -330,7 +334,7 @@ public class WorkspaceExplorerController implements EventHandler {
 	 *
 	 * @param item the item
 	 */
-	private void updateMoreInfo(ItemDTO item){
+	private void updateMoreInfo(Item item){
 
 		if(item!=null){
 			workspaceExplorerPanel.getSouthPanel().clear();
@@ -469,7 +473,7 @@ public class WorkspaceExplorerController implements EventHandler {
 	 * @param item the item
 	 * @return true, if successful
 	 */
-	public boolean itemIsSelectable(ItemDTO item){
+	public boolean itemIsSelectable(Item item){
 		GWT.log("Selectable type: "+wsExplorer.getSelectableTypes());
 		GWT.log("item: "+item);
 		if (item!=null){

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/WorkspaceExplorerEntryPoint.java

@@ -2,7 +2,7 @@ package org.gcube.portlets.widgets.wsexplorer.client;
 
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.select.WorkspaceExplorerSelectDialog;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.google.gwt.core.client.EntryPoint;
 import com.google.gwt.core.shared.GWT;
@@ -23,7 +23,7 @@ public class WorkspaceExplorerEntryPoint implements EntryPoint {
 		WorskpaceExplorerSelectNotificationListener  listener = new WorskpaceExplorerSelectNotificationListener() {
 
 			@Override
-			public void onSelectedItem(ItemDTO item) {
+			public void onSelectedItem(Item item) {
 				GWT.log("onSelectedItem: "+item);
 				navigator.hide();
 			}

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/event/BreadcrumbClickEvent.java

@@ -1,6 +1,6 @@
 package org.gcube.portlets.widgets.wsexplorer.client.event;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.google.gwt.event.shared.GwtEvent;
 
@@ -13,7 +13,7 @@ import com.google.gwt.event.shared.GwtEvent;
  */
 public class BreadcrumbClickEvent extends GwtEvent<BreadcrumbClickEventHandler> {
 	public static Type<BreadcrumbClickEventHandler> TYPE = new Type<BreadcrumbClickEventHandler>();
-	private ItemDTO targetItem;
+	private Item targetItem;
 
 	
 	/**
@@ -21,7 +21,7 @@ public class BreadcrumbClickEvent extends GwtEvent<BreadcrumbClickEventHandler>
 	 *
 	 * @param target the target
 	 */
-	public BreadcrumbClickEvent(ItemDTO target) {
+	public BreadcrumbClickEvent(Item target) {
 		this.targetItem = target;
 	}
 
@@ -46,7 +46,7 @@ public class BreadcrumbClickEvent extends GwtEvent<BreadcrumbClickEventHandler>
 	 *
 	 * @return the targetItem
 	 */
-	public ItemDTO getTargetItem() {
+	public Item getTargetItem() {
 		return targetItem;
 	}
 
@@ -55,7 +55,7 @@ public class BreadcrumbClickEvent extends GwtEvent<BreadcrumbClickEventHandler>
 	 *
 	 * @param targetItem the targetItem to set
 	 */
-	public void setTargetItem(ItemDTO targetItem) {
+	public void setTargetItem(Item targetItem) {
 		this.targetItem = targetItem;
 	}
 }

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/event/BreadcrumbInitEvent.java

@@ -1,6 +1,6 @@
 package org.gcube.portlets.widgets.wsexplorer.client.event;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.google.gwt.event.shared.GwtEvent;
 
@@ -13,7 +13,7 @@ import com.google.gwt.event.shared.GwtEvent;
  */
 public class BreadcrumbInitEvent extends GwtEvent<BreadcrumbInitEventHandler> {
 	public static Type<BreadcrumbInitEventHandler> TYPE = new Type<BreadcrumbInitEventHandler>();
-	private ItemDTO targetItem;
+	private Item targetItem;
 
 
 	/**
@@ -21,7 +21,7 @@ public class BreadcrumbInitEvent extends GwtEvent<BreadcrumbInitEventHandler> {
 	 *
 	 * @param target the target
 	 */
-	public BreadcrumbInitEvent(ItemDTO target) {
+	public BreadcrumbInitEvent(Item target) {
 		this.targetItem = target;
 	}
 
@@ -46,7 +46,7 @@ public class BreadcrumbInitEvent extends GwtEvent<BreadcrumbInitEventHandler> {
 	 *
 	 * @return the targetItem
 	 */
-	public ItemDTO getTargetItem() {
+	public Item getTargetItem() {
 		return targetItem;
 	}
 
@@ -55,7 +55,7 @@ public class BreadcrumbInitEvent extends GwtEvent<BreadcrumbInitEventHandler> {
 	 *
 	 * @param targetItem the targetItem to set
 	 */
-	public void setTargetItem(ItemDTO targetItem) {
+	public void setTargetItem(Item targetItem) {
 		this.targetItem = targetItem;
 	}
 }

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/event/RootLoadedEvent.java

@@ -1,6 +1,6 @@
 package org.gcube.portlets.widgets.wsexplorer.client.event;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.google.gwt.event.shared.GwtEvent;
 
@@ -13,9 +13,9 @@ import com.google.gwt.event.shared.GwtEvent;
 public class RootLoadedEvent extends GwtEvent<RootLoadedEventHandler> {
 	
 	public static Type<RootLoadedEventHandler> TYPE = new Type<RootLoadedEventHandler>();
-	private ItemDTO root;
+	private Item root;
 
-	public RootLoadedEvent(ItemDTO root) {
+	public RootLoadedEvent(Item root) {
 		this.root  = root;
 	}
 
@@ -38,7 +38,7 @@ public class RootLoadedEvent extends GwtEvent<RootLoadedEventHandler> {
 	/**
 	 * @return the root
 	 */
-	public ItemDTO getRoot() {
+	public Item getRoot() {
 		return root;
 	}
 	

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/explore/WorkspaceResourcesBExplorerPanel.java

@@ -20,7 +20,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.view.Breadcrumbs;
 import org.gcube.portlets.widgets.wsexplorer.client.view.WorkspaceExplorer;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.constants.AlertType;
@@ -241,8 +241,8 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 		setParameters(folderId, folderName, showProperties, filter);
 		bindEvents();
 		wsExplorer = new WorkspaceExplorer(eventBus, filter, showableTypes, selectableTypes, showProperties, showGcubeInfo, sortByColumn, new DISPLAY_FIELD[]{DISPLAY_FIELD.ICON, DISPLAY_FIELD.NAME,DISPLAY_FIELD.CREATION_DATE});
-		wsExplorer.initTable(new ListDataProvider<ItemDTO>());
+		wsExplorer.initTable(new ListDataProvider<Item>());
-		ItemDTO item = new ItemDTO(folderId, folderName, true);
+		Item item = new Item(folderId, folderName, true);
 		wsExplorer.loadFolder(item, true, -1, -1, false);
 		initPanel("");
 	}
@@ -274,7 +274,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 			@Override
 			public <T> void onClick(final ClickItemEvent<T> clickItemEvent) {
 				isSelect = false;
-				ItemDTO item = wsExplorer.getItemSelected();
+				Item item = wsExplorer.getItemSelected();
 
 				//Return if item is not selectable
 				if(!itemIsSelectable(item)){
@@ -294,8 +294,8 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 
 				if(loadFolderEvent.getTargetItem()!=null){
 
-					if(loadFolderEvent.getTargetItem() instanceof ItemDTO){
+					if(loadFolderEvent.getTargetItem() instanceof Item){
-						ItemDTO item = (ItemDTO) loadFolderEvent.getTargetItem();
+						Item item = (Item) loadFolderEvent.getTargetItem();
 						if(item.isFolder()){
 							try {
 								wsExplorer.loadFolder(item, true, ITEM_START_INDEX, ITEMS_PER_PAGE, true);
@@ -315,7 +315,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 
 			@Override
 			public void onBreadcrumbClick(BreadcrumbClickEvent breadcrumbClickEvent) {
-				eventBus.fireEvent(new LoadFolderEvent<ItemDTO>(breadcrumbClickEvent.getTargetItem()));
+				eventBus.fireEvent(new LoadFolderEvent<Item>(breadcrumbClickEvent.getTargetItem()));
 			}
 		});
 	}
@@ -331,7 +331,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 
 		GWT.log("Reload Parent Breadcrumb: [Item id: "+itemIdentifier+"]");
 
-		WorkspaceExplorerConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifierToParentLimit(itemIdentifier, folderId, includeItemAsParent,  new AsyncCallback<List<ItemDTO>>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifierToParentLimit(itemIdentifier, folderId, includeItemAsParent,  new AsyncCallback<List<Item>>() {
 
 			@Override
 			public void onFailure(Throwable caught) {
@@ -340,7 +340,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 			}
 
 			@Override
-			public void onSuccess(List<ItemDTO> result) {
+			public void onSuccess(List<Item> result) {
 				if(result!=null){
 					notifyOnBreadcrumbChanged(result.get(result.size()-1));
 					breadcrumbs.setPath(result);
@@ -355,8 +355,8 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 	 * Refresh root folder view.
 	 */
 	public void refreshRootFolderView(){
-		ItemDTO item = new ItemDTO(folderId, folderName, true);
+		Item item = new Item(folderId, folderName, true);
-		eventBus.fireEvent(new LoadFolderEvent<ItemDTO>(item));
+		eventBus.fireEvent(new LoadFolderEvent<Item>(item));
 	}
 
 	/**
@@ -395,7 +395,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 	 *
 	 * @param selected the selected
 	 */
-	protected void notifySelectedItem(ItemDTO selected){
+	protected void notifySelectedItem(Item selected){
 
 		for (WorskpaceExplorerSelectBNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSelectedItem(selected);
@@ -408,7 +408,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 	 *
 	 * @param selected the selected
 	 */
-	protected void notifyOnBreadcrumbChanged(ItemDTO selected){
+	protected void notifyOnBreadcrumbChanged(Item selected){
 
 		for (WorskpaceExplorerSelectBNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onBreadcrumbChanged(selected);
@@ -495,7 +495,7 @@ public class WorkspaceResourcesBExplorerPanel extends DockPanel implements HasWo
 	 * @param item the item
 	 * @return true, if successful
 	 */
-	public boolean itemIsSelectable(ItemDTO item){
+	public boolean itemIsSelectable(Item item){
 		//GWT.log("Selectable type: "+wsExplorer.getSelectableTypes());
 		//GWT.log("item: "+item);
 		if (item!=null){

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/explore/WorkspaceResourcesExplorerPanel.java

@@ -20,7 +20,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.view.Breadcrumbs;
 import org.gcube.portlets.widgets.wsexplorer.client.view.WorkspaceExplorer;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.constants.AlertType;
@@ -212,8 +212,8 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 		setParameters(folderId, folderName, showProperties, filter);
 		bindEvents();
 		wsExplorer = new WorkspaceExplorer(eventBus, filter, showableTypes, selectableTypes, showProperties, showGcubeInfo, sortByColumn, new DISPLAY_FIELD[]{DISPLAY_FIELD.ICON, DISPLAY_FIELD.NAME,DISPLAY_FIELD.CREATION_DATE});
-		wsExplorer.initTable(new ListDataProvider<ItemDTO>());
+		wsExplorer.initTable(new ListDataProvider<Item>());
-		ItemDTO item = new ItemDTO(folderId, folderName, true);
+		Item item = new Item(folderId, folderName, true);
 		wsExplorer.loadFolder(item, true, -1, -1, false);
 		initPanel("");
 	}
@@ -245,7 +245,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 			@Override
 			public <T> void onClick(final ClickItemEvent<T> clickItemEvent) {
 				isSelect = false;
-				ItemDTO item = wsExplorer.getItemSelected();
+				Item item = wsExplorer.getItemSelected();
 
 				//Return if item is not selectable
 				if(!itemIsSelectable(item)){
@@ -265,8 +265,8 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 
 				if(loadFolderEvent.getTargetItem()!=null){
 
-					if(loadFolderEvent.getTargetItem() instanceof ItemDTO){
+					if(loadFolderEvent.getTargetItem() instanceof Item){
-						ItemDTO item = (ItemDTO) loadFolderEvent.getTargetItem();
+						Item item = (Item) loadFolderEvent.getTargetItem();
 						if(item.isFolder()){
 							try {
 								wsExplorer.loadFolder(item, true, ITEM_START_INDEX, ITEMS_PER_PAGE, true);
@@ -286,7 +286,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 
 			@Override
 			public void onBreadcrumbClick(BreadcrumbClickEvent breadcrumbClickEvent) {
-				eventBus.fireEvent(new LoadFolderEvent<ItemDTO>(breadcrumbClickEvent.getTargetItem()));
+				eventBus.fireEvent(new LoadFolderEvent<Item>(breadcrumbClickEvent.getTargetItem()));
 			}
 		});
 	}
@@ -302,7 +302,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 
 		GWT.log("Reload Parent Breadcrumb: [Item id: "+itemIdentifier+"]");
 
-		WorkspaceExplorerConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifierToParentLimit(itemIdentifier, folderId, includeItemAsParent,  new AsyncCallback<List<ItemDTO>>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifierToParentLimit(itemIdentifier, folderId, includeItemAsParent,  new AsyncCallback<List<Item>>() {
 
 			@Override
 			public void onFailure(Throwable caught) {
@@ -311,7 +311,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 			}
 
 			@Override
-			public void onSuccess(List<ItemDTO> result) {
+			public void onSuccess(List<Item> result) {
 				if(result!=null){
 					breadcrumbs.setPath(result);
 					clearMoreInfo();
@@ -325,8 +325,8 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	 * Refresh root folder view.
 	 */
 	public void refreshRootFolderView(){
-		ItemDTO item = new ItemDTO(folderId, folderName, true);
+		Item item = new Item(folderId, folderName, true);
-		eventBus.fireEvent(new LoadFolderEvent<ItemDTO>(item));
+		eventBus.fireEvent(new LoadFolderEvent<Item>(item));
 	}
 
 	/**
@@ -365,7 +365,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	 *
 	 * @param selected the selected
 	 */
-	protected void notifySelectedItem(ItemDTO selected){
+	protected void notifySelectedItem(Item selected){
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSelectedItem(selected);
@@ -451,7 +451,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	 * @param item the item
 	 * @return true, if successful
 	 */
-	public boolean itemIsSelectable(ItemDTO item){
+	public boolean itemIsSelectable(Item item){
 		//GWT.log("Selectable type: "+wsExplorer.getSelectableTypes());
 		//GWT.log("item: "+item);
 		if (item!=null){

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/explore/WorkspaceResourcesExplorerPanelPaginated.java

@@ -15,7 +15,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.event.LoadFolderEventHandler
 import org.gcube.portlets.widgets.wsexplorer.client.view.WorkspaceExplorerPaginated;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.google.gwt.core.shared.GWT;
@@ -125,7 +125,7 @@ public class WorkspaceResourcesExplorerPanelPaginated extends WorkspaceResources
 		wsExplorerPaginated = new WorkspaceExplorerPaginated(eventBus, filter, showableTypes, selectableTypes, showProperties, showGcubeInfo, sortByColumn, new DISPLAY_FIELD[]{DISPLAY_FIELD.ICON, DISPLAY_FIELD.NAME, DISPLAY_FIELD.CREATION_DATE});
 		wsExplorerPaginated.initPagination(ITEMS_PER_PAGE);
 		//wsExplorer.initTable(dataProvider);
-		ItemDTO item = new ItemDTO(folderId, folderName, true);
+		Item item = new Item(folderId, folderName, true);
 		wsExplorerPaginated.loadFolder(item, true, ITEM_START_INDEX, ITEMS_PER_PAGE, true);
 		initPanel("");
 		super.wsExplorer = wsExplorerPaginated;
@@ -159,7 +159,7 @@ public class WorkspaceResourcesExplorerPanelPaginated extends WorkspaceResources
 			@Override
 			public <T> void onClick(final ClickItemEvent<T> clickItemEvent) {
 				isSelect = false;
-				ItemDTO item = wsExplorerPaginated.getItemSelected();
+				Item item = wsExplorerPaginated.getItemSelected();
 				//Return if item is not selectable
 				if(!itemIsSelectable(item)){
 					notifyNotValidSelection();
@@ -178,8 +178,8 @@ public class WorkspaceResourcesExplorerPanelPaginated extends WorkspaceResources
 
 				if(loadFolderEvent.getTargetItem()!=null){
 
-					if(loadFolderEvent.getTargetItem() instanceof ItemDTO){
+					if(loadFolderEvent.getTargetItem() instanceof Item){
-						ItemDTO item = (ItemDTO) loadFolderEvent.getTargetItem();
+						Item item = (Item) loadFolderEvent.getTargetItem();
 						if(item.isFolder()){
 							try {
 								wsExplorerPaginated.loadFolder(item, true, ITEM_START_INDEX, ITEMS_PER_PAGE, true);
@@ -199,7 +199,7 @@ public class WorkspaceResourcesExplorerPanelPaginated extends WorkspaceResources
 
 			@Override
 			public void onBreadcrumbClick(BreadcrumbClickEvent breadcrumbClickEvent) {
-				eventBus.fireEvent(new LoadFolderEvent<ItemDTO>(breadcrumbClickEvent.getTargetItem()));
+				eventBus.fireEvent(new LoadFolderEvent<Item>(breadcrumbClickEvent.getTargetItem()));
 			}
 		});
 	}

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/notification/WorkspaceExplorerSaveNotification.java

@@ -3,7 +3,7 @@
  */
 package org.gcube.portlets.widgets.wsexplorer.client.notification;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 
 /**
@@ -33,7 +33,7 @@ public class WorkspaceExplorerSaveNotification {
 		 * @param parent the parent
 		 * @param fileName the file name
 		 */
-		void onSaving(ItemDTO parent,String fileName);
+		void onSaving(Item parent,String fileName);
 
 		/**
 		 * On aborted.

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/notification/WorkspaceExplorerSelectBNotification.java

@@ -3,7 +3,7 @@
  */
 package org.gcube.portlets.widgets.wsexplorer.client.notification;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 
 /**
@@ -34,7 +34,7 @@ public class WorkspaceExplorerSelectBNotification {
 		 *
 		 * @param item the item
 		 */
-		void onSelectedItem(ItemDTO item);
+		void onSelectedItem(Item item);
 
 		
 		/**
@@ -62,7 +62,7 @@ public class WorkspaceExplorerSelectBNotification {
 		 *
 		 * @param item the item
 		 */
-		void onBreadcrumbChanged(ItemDTO item);
+		void onBreadcrumbChanged(Item item);
 	}
 
 

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/notification/WorkspaceExplorerSelectNotification.java

@@ -3,7 +3,7 @@
  */
 package org.gcube.portlets.widgets.wsexplorer.client.notification;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 
 /**
@@ -34,7 +34,7 @@ public class WorkspaceExplorerSelectNotification {
 		 *
 		 * @param item the item
 		 */
-		void onSelectedItem(ItemDTO item);
+		void onSelectedItem(Item item);
 
 		
 		/**

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/resources/WorkspaceExplorerIcons.java

@@ -26,13 +26,13 @@ public interface WorkspaceExplorerIcons extends ClientBundle {
 	@Source("loading.gif")
 	ImageResource logo();
 
-	@Source("vre_folder.png")
+	@Source("baseline_folder_special_white_24dp.png")
 	ImageResource vre_folder();
 
-	@Source("new_folder.png")
+	@Source("baseline_create_new_folder_white_24dp.png")
 	ImageResource new_folder();
 
-	@Source("home.png")
+	@Source("baseline_home_white_24dp.png")
 	ImageResource home();
 
 	@Source("info-icon.png")

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/resources/old/WorkspaceLightTreeResources.java

@@ -31,15 +31,30 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("folder.png")
+	@Source("FOLDER.png")
 	ImageResource folder();
 	
+	@Source("DOC.png")
+	ImageResource DOC();
+	
+	@Source("PPTX.png")
+	ImageResource PPT();
+	
+	@Source("XLS.png")
+	ImageResource XLS();
+	
+	@Source("CSV.png")
+	ImageResource CSV();
+	
+	@Source("CALENDAR.png")
+	ImageResource CALENDAR();
+	
 	/**
 	 * Shared folder.
 	 *
 	 * @return the image resource
 	 */
-	@Source("shared_folder.png")
+	@Source("SHARED_FOLDER.png")
 	ImageResource sharedFolder();
 
 	/**
@@ -47,7 +62,7 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("external_image.gif")
+	@Source("IMAGE.png")
 	ImageResource external_image();
 
 	/**
@@ -55,7 +70,7 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("external_pdf.gif")
+	@Source("PDF.png")
 	ImageResource external_pdf();
 
 	/**
@@ -127,7 +142,7 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("pdf_document.png")
+	@Source("PDF.png")
 	ImageResource pdf_document();
 
 	/**
@@ -135,7 +150,7 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("image_document.png")
+	@Source("IMAGE.png")
 	ImageResource image_document();
 
 	/**
@@ -183,7 +198,7 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("noimage.png")
+	@Source("UNKNOWN.png")
 	ImageResource unknownType();
 	
 	/**
@@ -208,7 +223,7 @@ public interface WorkspaceLightTreeResources extends ClientBundle {
 	 *
 	 * @return the image resource
 	 */
-	@Source("icon-unknown.gif")
+	@Source("UNKNOWN.png")
 	ImageResource unknown();
 	
 	/**

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/rpc/WorkspaceExplorerService.java

@@ -1,11 +1,12 @@
 
 package org.gcube.portlets.widgets.wsexplorer.client.rpc;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemCategory;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemInterface;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
@@ -34,8 +35,8 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @throws Exception
 	 *             the exception
 	 */
-	List<ItemDTO> getBreadcrumbsByItemIdentifier(
+	ArrayList<Item> getBreadcrumbsByItemIdentifier(
-		String itemIdentifier, boolean includeItemAsParent)
+		String itemIdentifier, String itemName, boolean includeItemAsParent)
 		throws Exception;
 
 	/**
@@ -61,7 +62,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @return the folder
 	 * @throws WorkspaceNavigatorServiceException             the workspace navigator service exception
 	 */
-	ItemDTO getFolder(
+	Item getFolder(
 		ItemInterface item, List<ItemType> showableTypes,
 		boolean purgeEmpyFolders, FilterCriteria filterCriteria,
 		boolean loadGcubeProperties)
@@ -80,7 +81,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @throws WorkspaceNavigatorServiceException
 	 *             the workspace navigator service exception
 	 */
-	ItemDTO getRoot(
+	Item getRoot(
 		List<ItemType> showableTypes, boolean purgeEmpyFolders,
 		FilterCriteria filterCriteria)
 		throws WorkspaceNavigatorServiceException;
@@ -98,7 +99,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @throws WorkspaceNavigatorServiceException
 	 *             the workspace navigator service exception
 	 */
-	ItemDTO getMySpecialFolder(
+	Item getMySpecialFolder(
 		List<ItemType> showableTypes, boolean purgeEmpyFolders,
 		FilterCriteria filterCriteria)
 		throws WorkspaceNavigatorServiceException;
@@ -112,7 +113,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @throws WorkspaceNavigatorServiceException
 	 *             the workspace navigator service exception
 	 */
-	ItemDTO getItemByCategory(ItemCategory category)
+	Item getItemByCategory(ItemCategory category)
 		throws WorkspaceNavigatorServiceException;
 
 	/**
@@ -172,7 +173,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @return the breadcrumbs by item identifier to parent limit
 	 * @throws Exception the exception
 	 */
-	List<ItemDTO> getBreadcrumbsByItemIdentifierToParentLimit(
+	List<Item> getBreadcrumbsByItemIdentifierToParentLimit(
 		String itemIdentifier, String parentLimit, boolean includeItemAsParent)
 		throws Exception;
 
@@ -185,7 +186,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @return the item
 	 * @throws Exception the exception
 	 */
-	ItemDTO createFolder(String nameFolder, String description, String parentId)
+	Item createFolder(String nameFolder, String description, String parentId)
 		throws Exception;
 
 
@@ -215,7 +216,7 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @throws WorkspaceNavigatorServiceException the workspace navigator service exception
 	 */
 	SearchedFolder getFolder(
-		ItemDTO item, List<ItemType> showableTypesParam, boolean purgeEmpyFolders,
+		Item item, List<ItemType> showableTypesParam, boolean purgeEmpyFolders,
 		FilterCriteria filterCriteria, boolean loadGcubeProperties,
 		int startIndex, int limit, int serverStartIndex) throws WorkspaceNavigatorServiceException;
 
@@ -226,6 +227,6 @@ public interface WorkspaceExplorerService extends RemoteService {
 	 * @return the folder children count
 	 * @throws WorkspaceNavigatorServiceException the workspace navigator service exception
 	 */
-	int getFolderChildrenCount(ItemDTO item) throws WorkspaceNavigatorServiceException;
+	int getFolderChildrenCount(Item item) throws WorkspaceNavigatorServiceException;
 
 }

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/rpc/WorkspaceExplorerServiceAsync.java

@@ -4,11 +4,12 @@
 
 package org.gcube.portlets.widgets.wsexplorer.client.rpc;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemCategory;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemInterface;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
@@ -38,7 +39,7 @@ public interface WorkspaceExplorerServiceAsync {
 	 */
 	public void getRoot(
 		List<ItemType> showableTypes, boolean purgeEmpyFolders,
-		FilterCriteria filterCriteria, AsyncCallback<ItemDTO> callback);
+		FilterCriteria filterCriteria, AsyncCallback<Item> callback);
 
 	/**
 	 * Check name.
@@ -64,22 +65,10 @@ public interface WorkspaceExplorerServiceAsync {
 	void getFolder(
 		ItemInterface item, List<ItemType> showableTypes,
 		boolean purgeEmpyFolders, FilterCriteria filterCriteria,
-		boolean loadGcubeProperties, AsyncCallback<ItemDTO> callback);
+		boolean loadGcubeProperties, AsyncCallback<Item> callback);
 
-	/**
+	void getBreadcrumbsByItemIdentifier(String itemIdentifier, String itemName, boolean includeItemAsParent,
-	 * Gets the breadcrumbs by item identifier.
+			AsyncCallback<ArrayList<Item>> asyncCallback);
-	 *
-	 * @param itemIdentifier
-	 *            the item identifier
-	 * @param includeItemAsParent
-	 *            the include item as parent
-	 * @param asyncCallback
-	 *            the async callback
-	 * @return the breadcrumbs by item identifier
-	 */
-	public void getBreadcrumbsByItemIdentifier(
-		String itemIdentifier, boolean includeItemAsParent,
-		AsyncCallback<List<ItemDTO>> asyncCallback);
 
 	/**
 	 * Gets the my special folder.
@@ -96,7 +85,7 @@ public interface WorkspaceExplorerServiceAsync {
 	 */
 	public void getMySpecialFolder(
 		List<ItemType> showableTypes, boolean purgeEmpyFolders,
-		FilterCriteria filterCriteria, AsyncCallback<ItemDTO> asyncCallback);
+		FilterCriteria filterCriteria, AsyncCallback<Item> asyncCallback);
 
 	/**
 	 * Gets the item by category.
@@ -108,7 +97,7 @@ public interface WorkspaceExplorerServiceAsync {
 	 * @return the item by category
 	 */
 	public void getItemByCategory(
-		ItemCategory category, AsyncCallback<ItemDTO> asyncCallback);
+		ItemCategory category, AsyncCallback<Item> asyncCallback);
 
 	/**
 	 * Gets the size by item id.
@@ -171,7 +160,7 @@ public interface WorkspaceExplorerServiceAsync {
 	 */
 	void getBreadcrumbsByItemIdentifierToParentLimit(
 		String itemIdentifier, String parentLimit, boolean includeItemAsParent,
-		AsyncCallback<List<ItemDTO>> callback);
+		AsyncCallback<List<Item>> callback);
 
 	/**
 	 * Creates the folder.
@@ -187,7 +176,7 @@ public interface WorkspaceExplorerServiceAsync {
 	 */
 	void createFolder(
 		String nameFolder, String description, String parentId,
-		AsyncCallback<ItemDTO> callback);
+		AsyncCallback<Item> callback);
 
 
 	/**
@@ -216,7 +205,7 @@ public interface WorkspaceExplorerServiceAsync {
 	 * @return the folder
 	 */
 	void getFolder(
-		ItemDTO item, List<ItemType> showableTypesParam, boolean purgeEmpyFolders,
+		Item item, List<ItemType> showableTypesParam, boolean purgeEmpyFolders,
 		FilterCriteria filterCriteria, boolean loadGcubeProperties,
 		int startIndex, int limit, int serverStartIndex, AsyncCallback<SearchedFolder> asyncCallback);
 
@@ -227,6 +216,6 @@ public interface WorkspaceExplorerServiceAsync {
 	 * @param asyncCallback the async callback
 	 * @return the folder children count
 	 */
-	public void getFolderChildrenCount(ItemDTO item, AsyncCallback<Integer> asyncCallback);
+	public void getFolderChildrenCount(Item item, AsyncCallback<Integer> asyncCallback);
 
 }

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/save/WorkspaceExplorerSaveDialog.java

@@ -11,7 +11,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.event.LoadRootEvent;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSaveNotification.HasWorskpaceExplorerSaveNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSaveNotification.WorskpaceExplorerSaveNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.Button;
@@ -195,7 +195,7 @@ public class WorkspaceExplorerSaveDialog extends Modal implements HasWorskpaceEx
 			public void onClick(ClickEvent event) {
 				isSave = false;
 
-				ItemDTO item = controller.getWsExplorer().getItemSelected();
+				Item item = controller.getWsExplorer().getItemSelected();
 
 				//A FOLDER IS SELECTED
 				if (item != null && item.isFolder()) {
@@ -222,7 +222,7 @@ public class WorkspaceExplorerSaveDialog extends Modal implements HasWorskpaceEx
 						return;
 					}
 
-					ItemDTO itemB = controller.getBreadcrumbs().getLastParent();
+					Item itemB = controller.getBreadcrumbs().getLastParent();
 					GWT.log("last parent: "+itemB);
 					if (itemB != null) {
 						if(itemB.isSpecialFolder()){
@@ -262,8 +262,8 @@ public class WorkspaceExplorerSaveDialog extends Modal implements HasWorskpaceEx
 			public <T> void onClick(final ClickItemEvent<T> clickItemEvent) {
 
 				if(clickItemEvent.getItem()!=null){
-					if (clickItemEvent.getItem() instanceof ItemDTO) {
+					if (clickItemEvent.getItem() instanceof Item) {
-						ItemDTO item = (ItemDTO) clickItemEvent.getItem();
+						Item item = (Item) clickItemEvent.getItem();
 						if(item!=null && !item.isFolder())
 							setFileName("New_"+item.getName());
 					}
@@ -318,7 +318,7 @@ public class WorkspaceExplorerSaveDialog extends Modal implements HasWorskpaceEx
 	 * @param parent the parent
 	 * @param fileName the file name
 	 */
-	private void notifySaving(ItemDTO parent, String fileName) {
+	private void notifySaving(Item parent, String fileName) {
 
 		for (WorskpaceExplorerSaveNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSaving(parent, fileName);

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/save/WorkspaceExplorerSavePanel.java

@@ -15,7 +15,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.event.LoadRootEvent;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSaveNotification.HasWorskpaceExplorerSaveNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSaveNotification.WorskpaceExplorerSaveNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.Button;
@@ -161,7 +161,7 @@ public class WorkspaceExplorerSavePanel extends ScrollPanel implements HasWorskp
 			public void onClick(ClickEvent event) {
 				isSave = false;
 
-				ItemDTO item = controller.getWsExplorer().getItemSelected();
+				Item item = controller.getWsExplorer().getItemSelected();
 
 				if (item != null && item.isFolder()) {
 
@@ -186,7 +186,7 @@ public class WorkspaceExplorerSavePanel extends ScrollPanel implements HasWorskp
 						return;
 					}
 
-					ItemDTO itemB = controller.getBreadcrumbs().getLastParent();
+					Item itemB = controller.getBreadcrumbs().getLastParent();
 					GWT.log("last parent: "+itemB);
 					if (itemB != null) {
 						if(itemB.isSpecialFolder()){
@@ -231,8 +231,8 @@ public class WorkspaceExplorerSavePanel extends ScrollPanel implements HasWorskp
 			public <T> void onClick(final ClickItemEvent<T> clickItemEvent) {
 
 				if(clickItemEvent.getItem()!=null){
-					if (clickItemEvent.getItem() instanceof ItemDTO) {
+					if (clickItemEvent.getItem() instanceof Item) {
-						ItemDTO item = (ItemDTO) clickItemEvent.getItem();
+						Item item = (Item) clickItemEvent.getItem();
 						if(item!=null && !item.isFolder())
 							setFileName("New_"+item.getName());
 					}
@@ -276,7 +276,7 @@ public class WorkspaceExplorerSavePanel extends ScrollPanel implements HasWorskp
 	 * @param parent the parent
 	 * @param fileName the file name
 	 */
-	private void notifySaving(ItemDTO parent, String fileName) {
+	private void notifySaving(Item parent, String fileName) {
 
 		for (WorskpaceExplorerSaveNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSaving(parent, fileName);

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/select/WorkspaceExplorerSelectDialog.java

@@ -13,7 +13,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.event.LoadRootEvent;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.HasWorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.Alert;
@@ -180,8 +180,8 @@ public class WorkspaceExplorerSelectDialog extends Modal implements HasWorskpace
 		if(folderId==null || folderId.isEmpty())
 			controller.getEventBus().fireEvent(new LoadRootEvent());
 		else{
-			ItemDTO item = new ItemDTO(folderId, "", true);
+			Item item = new Item(folderId, "", true);
-			controller.getEventBus().fireEvent(new LoadFolderEvent<ItemDTO>(item));
+			controller.getEventBus().fireEvent(new LoadFolderEvent<Item>(item));
 		}
 		initDialog(captionTxt);
 	}
@@ -217,7 +217,7 @@ public class WorkspaceExplorerSelectDialog extends Modal implements HasWorskpace
 			@Override
 			public void onClick(ClickEvent event) {
 				isSelect = false;
-				ItemDTO item = controller.getWsExplorer().getItemSelected();
+				Item item = controller.getWsExplorer().getItemSelected();
 				boolean isSelectable = controller.itemIsSelectable(item);
 				GWT.log("Item is selectable? "+isSelectable);
 				if(item!=null && isSelectable){
@@ -225,7 +225,7 @@ public class WorkspaceExplorerSelectDialog extends Modal implements HasWorskpace
 					INSTANCE.hide();
 					notifySelectedItem(item);
 				}else if(item==null){ //IGNORING ITEM SELECT, CAN USE BREADCRUMBS?
-					ItemDTO itemB = controller.getBreadcrumbs().getLastParent();
+					Item itemB = controller.getBreadcrumbs().getLastParent();
 					if(itemB!=null){
 						isSelectable = controller.itemIsSelectable(itemB); //BREADCRUMB IS SELECTABLE?
 						if(isSelectable)
@@ -247,7 +247,7 @@ public class WorkspaceExplorerSelectDialog extends Modal implements HasWorskpace
 	 * @param show the show
 	 * @param item the item
 	 */
-	private void setAlertConfirm(String html, boolean show, final ItemDTO item){
+	private void setAlertConfirm(String html, boolean show, final Item item){
 		try{
 			footer.remove(alertConfirm);
 		}catch(Exception e){
@@ -292,7 +292,7 @@ public class WorkspaceExplorerSelectDialog extends Modal implements HasWorskpace
 	 *
 	 * @param selected the selected
 	 */
-	private void notifySelectedItem(ItemDTO selected){
+	private void notifySelectedItem(Item selected){
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSelectedItem(selected);

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/select/WorkspaceExplorerSelectPanel.java

@@ -22,7 +22,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.event.RootLoadedEventHandler
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.HasWorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.client.notification.WorkspaceExplorerSelectNotification.WorskpaceExplorerSelectNotificationListener;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.Alert;
@@ -172,7 +172,7 @@ public class WorkspaceExplorerSelectPanel extends ScrollPanel implements HasWors
 			@Override
 			public void onClick(final ClickItemEvent clickItemEvent) {
 				isSelect = false;
-				ItemDTO item = controller.getWsExplorer().getItemSelected();
+				Item item = controller.getWsExplorer().getItemSelected();
 
 				//Return if item is not selectable
 				if(!controller.itemIsSelectable(item)){
@@ -190,7 +190,7 @@ public class WorkspaceExplorerSelectPanel extends ScrollPanel implements HasWors
 			@Override
 			public void onBreadcrumbClick(BreadcrumbClickEvent breadcrumbClickEvent) {
 				isSelect = false;
-				ItemDTO item = breadcrumbClickEvent.getTargetItem();
+				Item item = breadcrumbClickEvent.getTargetItem();
 				GWT.log("BreadcrumbClickEvent: "+item);
 
 				//Return if item is not selectable
@@ -278,8 +278,8 @@ public class WorkspaceExplorerSelectPanel extends ScrollPanel implements HasWors
 		if(folderId==null || folderId.isEmpty())
 			controller.getEventBus().fireEvent(new LoadRootEvent());
 		else{
-			ItemDTO item = new ItemDTO(folderId, "", true);
+			Item item = new Item(folderId, "", true);
-			controller.getEventBus().fireEvent(new LoadFolderEvent<ItemDTO>(item));
+			controller.getEventBus().fireEvent(new LoadFolderEvent<Item>(item));
 		}
 		bindEvents();
 		initPanel(captionTxt);
@@ -312,7 +312,7 @@ public class WorkspaceExplorerSelectPanel extends ScrollPanel implements HasWors
 	 * @param show the show
 	 * @param item the item
 	 */
-	private void setAlertConfirm(String html, boolean show, final ItemDTO item){
+	private void setAlertConfirm(String html, boolean show, final Item item){
 		try{
 			footerHP.remove(alertConfirm);
 		}catch(Exception e){
@@ -356,7 +356,7 @@ public class WorkspaceExplorerSelectPanel extends ScrollPanel implements HasWors
 	 *
 	 * @param selected the selected
 	 */
-	private void notifySelectedItem(ItemDTO selected){
+	private void notifySelectedItem(Item selected){
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSelectedItem(selected);

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/Breadcrumbs.java

@@ -8,7 +8,7 @@ import java.util.List;
 
 import org.gcube.portlets.widgets.wsexplorer.client.event.BreadcrumbClickEvent;
 import org.gcube.portlets.widgets.wsexplorer.client.event.BreadcrumbInitEvent;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.github.gwtbootstrap.client.ui.NavLink;
 import com.google.gwt.core.client.GWT;
@@ -28,8 +28,8 @@ import com.google.gwt.user.client.ui.Widget;
 public class Breadcrumbs extends Composite {
 
 	public static final String DIVIDER = "/";
-	private LinkedHashMap<String, ItemDTO> hashListItems = new LinkedHashMap<String, ItemDTO>();// Ordered-HashMap
+	private LinkedHashMap<String, Item> hashListItems = new LinkedHashMap<String, Item>();// Ordered-HashMap
-	private ItemDTO lastParent;
+	private Item lastParent;
 	private static BreadcrumbsUiBinder uiBinder = GWT.create(BreadcrumbsUiBinder.class);
 
 	@UiField
@@ -82,10 +82,10 @@ public class Breadcrumbs extends Composite {
 	 * @param parents
 	 *            the new path
 	 */
-	public void setPath(List<ItemDTO> parents) {
+	public void setPath(List<Item> parents) {
 		resetBreadcrumbs();
 		if (parents != null && parents.size() > 0) {
-			for (ItemDTO parent : parents) {
+			for (Item parent : parents) {
 				GWT.log("parent is: "+parent);
 				if(parent!=null){
 					addNavigationLink(parent);
@@ -102,7 +102,7 @@ public class Breadcrumbs extends Composite {
 	 * @param item the item
 	 * @return true, if is root or special folder
 	 */
-	private boolean isRootOrSpecialFolder(ItemDTO item){
+	private boolean isRootOrSpecialFolder(Item item){
 		GWT.log(item.getName() +" is root "+(item.getParent()==null));
 		GWT.log(item.getName() +" is special folder "+item.isSpecialFolder());
 		return item.getParent()==null || item.isSpecialFolder();
@@ -123,7 +123,7 @@ public class Breadcrumbs extends Composite {
 	 *
 	 * @param parent the parent
 	 */
-	private void addNavigationLink(ItemDTO parent) {
+	private void addNavigationLink(Item parent) {
 		if(parent==null)
 			return;
 
@@ -135,7 +135,7 @@ public class Breadcrumbs extends Composite {
 			@Override
 			public void onClick(ClickEvent event) {
 
-				ItemDTO target = hashListItems.get(navLink.getName());
+				Item target = hashListItems.get(navLink.getName());
 //				WorkspaceExplorerController.eventBus.fireEvent(new LoadFolderEvent(target));
 				eventBus.fireEvent(new BreadcrumbClickEvent(target));
 			}
@@ -160,7 +160,7 @@ public class Breadcrumbs extends Composite {
 	 *
 	 * @return the last parent
 	 */
-	public ItemDTO getLastParent() {
+	public Item getLastParent() {
 		return lastParent;
 	}
 
@@ -170,7 +170,7 @@ public class Breadcrumbs extends Composite {
 	 *
 	 * @param item the item
 	 */
-	public void init(ItemDTO item) {
+	public void init(Item item) {
 		resetBreadcrumbs();
 		addNavigationLink(item);
 		hashListItems.put(item.getId(), item);

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/FolderLoader.java

@@ -3,7 +3,7 @@
  */
 package org.gcube.portlets.widgets.wsexplorer.client.view;
 
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 
 /**
@@ -24,5 +24,5 @@ public interface FolderLoader {
 	 * @param resetStore the reset store.  Used for pagination
 	 * @throws Exception the exception
 	 */
-	public void loadFolder(final ItemDTO item, boolean loadGcubeProperties, int startIdx, int limit, boolean resetStore) throws Exception;
+	public void loadFolder(final Item item, boolean loadGcubeProperties, int startIdx, int limit, boolean resetStore) throws Exception;
 }

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/Navigation.java

@@ -8,11 +8,12 @@ import org.gcube.portlets.widgets.wsexplorer.client.event.CreateFolderClickEvent
 import org.gcube.portlets.widgets.wsexplorer.client.event.LoadMySpecialFolderEvent;
 import org.gcube.portlets.widgets.wsexplorer.client.event.LoadRootEvent;
 import org.gcube.portlets.widgets.wsexplorer.client.resources.WorkspaceExplorerResources;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemCategory;
 
 import com.github.gwtbootstrap.client.ui.NavWidget;
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Style.ListStyleType;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.event.shared.HandlerManager;
@@ -64,11 +65,11 @@ public class Navigation extends Composite{
 		this.eventBus = eventBus;
 //		getElement().getStyle().setMarginLeft(5.0, Unit.PX);
 		home.setActive(true);
-
+		getElement().getStyle().setListStyleType(ListStyleType.NONE);
-		WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.HOME, new AsyncCallback<ItemDTO>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.HOME, new AsyncCallback<Item>() {
 
 			@Override
-			public void onSuccess(ItemDTO result) {
+			public void onSuccess(Item result) {
 				home.setText(result.getName());
 
 			}
@@ -93,10 +94,10 @@ public class Navigation extends Composite{
 		vre_folder.setActive(true);
 		vre_folder.setBaseIcon(WorkspaceExplorerResources.CustomIconType.vre_folder);
 
-		WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.VRE_FOLDER, new AsyncCallback<ItemDTO>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getItemByCategory(ItemCategory.VRE_FOLDER, new AsyncCallback<Item>() {
 
 			@Override
-			public void onSuccess(ItemDTO result) {
+			public void onSuccess(Item result) {
 				vre_folder.setText(result.getName());
 
 			}

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/WorkspaceExplorer.java

@@ -11,7 +11,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.resources.WorkspaceExplorerR
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 
 import com.github.gwtbootstrap.client.ui.Alert;
@@ -55,16 +55,16 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	protected FilterCriteria filterCriteria = null;
 	protected boolean showEmptyFolders = true;
 	protected ScrollPanel explorerPanel;
-	private ItemsTable<ItemDTO> itTables;
+	private ItemsTable<Item> itTables;
 	private DISPLAY_FIELD[] displayFields;
 	private DISPLAY_FIELD sortByColumn;
 	private HandlerManager eventBus;
 
-	private ItemDTO displayingFolderItem;
+	private Item displayingFolderItem;
 	private boolean showGcubeItemsInfo;
 	private List<String> displayProperties;
 
-	private AbstractDataProvider<ItemDTO> dataProvider;
+	private AbstractDataProvider<Item> dataProvider;
 
 	/**
 	 * Instantiates a new workspace explorer - This is the base constructor.
@@ -94,9 +94,9 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @param dataProvider the new data provider table
 	 */
-	public void initTable(AbstractDataProvider<ItemDTO> dataProvider){
+	public void initTable(AbstractDataProvider<Item> dataProvider){
 		this.dataProvider = dataProvider;
-		this.itTables = new ItemsTable<ItemDTO>(eventBus, true, displayFields, displayProperties, showGcubeItemsInfo, sortByColumn);
+		this.itTables = new ItemsTable<Item>(eventBus, true, displayFields, displayProperties, showGcubeItemsInfo, sortByColumn);
 		this.itTables.initTable(null, null, dataProvider);
 	}
 
@@ -189,7 +189,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 
 		GWT.log("loading workspace tree from server");
 
-		WorkspaceExplorerConstants.workspaceNavigatorService.getRoot(showableTypesParam, purgeEmpyFolders, filterCriteria, new AsyncCallback<ItemDTO>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getRoot(showableTypesParam, purgeEmpyFolders, filterCriteria, new AsyncCallback<Item>() {
 
 			public void onFailure(Throwable caught) {
 				Window.alert(caught.getMessage());
@@ -197,7 +197,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 				GWT.log("Error loading workspace tree from server",caught);
 			}
 
-			public void onSuccess(ItemDTO item) {
+			public void onSuccess(Item item) {
 				eventBus.fireEvent(new RootLoadedEvent(item));
 				updateExplorer(item.getChildren());
 
@@ -212,7 +212,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @param item the new displaying folder item
 	 */
-	protected void setDisplayingFolderItem(ItemDTO item) {
+	protected void setDisplayingFolderItem(Item item) {
 		this.displayingFolderItem = item;
 	}
 
@@ -237,7 +237,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 //		FilterCriteria filterCriteria = new FilterCriteria(allowedMimeTypes,requiredProperties, allowedFileExtensions);
 
 		GWT.log("loading workspace tree from server");
-		WorkspaceExplorerConstants.workspaceNavigatorService.getMySpecialFolder(showableTypesParam, purgeEmpyFolders, filterCriteria, new AsyncCallback<ItemDTO>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getMySpecialFolder(showableTypesParam, purgeEmpyFolders, filterCriteria, new AsyncCallback<Item>() {
 
 				@Override
 				public void onFailure(Throwable caught) {
@@ -247,7 +247,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 				}
 
 				@Override
-				public void onSuccess(ItemDTO item) {
+				public void onSuccess(Item item) {
 
 					updateExplorer(item.getChildren());
 					setDisplayingFolderItem(item);
@@ -261,7 +261,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @param items the items
 	 */
-	protected void updateExplorer(ArrayList<ItemDTO> items){
+	protected void updateExplorer(ArrayList<Item> items){
 		GWT.log("workspace explorer updating..");
 		explorerPanel.clear();
 //		itTables = new ItemsTable(true, displayFields);
@@ -276,7 +276,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @param item the item
 	 */
-	public void addItemToExplorer(ItemDTO item){
+	public void addItemToExplorer(Item item){
 		GWT.log("workspace explorer add item.."+item);
 //		itTables = new ItemsTable(true, displayFields);
 //		explorerPanel.clear();
@@ -321,7 +321,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @return the itTables
 	 */
-	public ItemsTable<ItemDTO> getItTables() {
+	public ItemsTable<Item> getItTables() {
 		return itTables;
 	}
 
@@ -331,7 +331,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @return the item selected
 	 */
-	public ItemDTO getItemSelected(){
+	public Item getItemSelected(){
 		return itTables.getSelectedItem();
 	}
 
@@ -392,7 +392,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @return the displayingFolderItem
 	 */
-	public ItemDTO getDisplayingFolderItem() {
+	public Item getDisplayingFolderItem() {
 
 		return displayingFolderItem;
 	}
@@ -403,7 +403,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 *
 	 * @return the dataProvider
 	 */
-	public AbstractDataProvider<ItemDTO> getDataProvider() {
+	public AbstractDataProvider<Item> getDataProvider() {
 
 		return dataProvider;
 	}
@@ -426,7 +426,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 	 */
 	@Override
 	public void loadFolder(
-		final ItemDTO item, boolean loadGcubeProperties, int startIdx, int limit,
+		final Item item, boolean loadGcubeProperties, int startIdx, int limit,
 		boolean resetStore)
 		throws Exception {
 
@@ -452,7 +452,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 //			FilterCriteria filterCriteria = new FilterCriteria(allowedMimeTypes,requiredProperties, allowedFileExtensions);
 
 		GWT.log("loading workspace folder by item id from server: "+item.getId());
-		WorkspaceExplorerConstants.workspaceNavigatorService.getFolder(item, showableTypesParam, purgeEmpyFolders, filterCriteria, loadGcubeProperties, new AsyncCallback<ItemDTO>() {
+		WorkspaceExplorerConstants.workspaceNavigatorService.getFolder(item, showableTypesParam, purgeEmpyFolders, filterCriteria, loadGcubeProperties, new AsyncCallback<Item>() {
 
 			@Override
 			public void onFailure(Throwable caught) {
@@ -462,7 +462,7 @@ public class WorkspaceExplorer implements ShowableTypes, SelectableTypes, Folder
 			}
 
 			@Override
-			public void onSuccess(ItemDTO result) {
+			public void onSuccess(Item result) {
 				if(item.getName()==null || item.getName().isEmpty())
 					item.setName(result.getName());
 

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/WorkspaceExplorerPaginated.java

@@ -12,7 +12,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.WorkspaceExplorerConstants;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.ItemsTable.DISPLAY_FIELD;
 import org.gcube.portlets.widgets.wsexplorer.client.view.grid.SortedCellTable;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 import org.gcube.portlets.widgets.wsexplorer.shared.SearchedFolder;
 
@@ -48,7 +48,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 
 	private Boolean newLoading = false;
 
-	private MyCustomDataProvider<ItemDTO> dataProvider = new MyCustomDataProvider<ItemDTO>();
+	private MyCustomDataProvider<Item> dataProvider = new MyCustomDataProvider<Item>();
 
 	protected boolean loadGcubeProperties = false;
 
@@ -87,8 +87,8 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	 *
 	 * @return the asycn data provider
 	 */
-	public AsyncDataProvider<ItemDTO> getAsycnDataProvider(){
+	public AsyncDataProvider<Item> getAsycnDataProvider(){
-		return (AsyncDataProvider<ItemDTO>) getCellTable().getDataProvider();
+		return (AsyncDataProvider<Item>) getCellTable().getDataProvider();
 	}
 
 	/**
@@ -96,7 +96,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	 *
 	 * @return the cell tale
 	 */
-	public SortedCellTable<ItemDTO> getCellTable(){
+	public SortedCellTable<Item> getCellTable(){
 		return  getItTables().getCellTable();
 	}
 
@@ -104,7 +104,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	/* (non-Javadoc)
 	 * @see org.gcube.portlets.widgets.wsexplorer.client.view.WorkspaceExplorer#loadFolder(org.gcube.portlets.widgets.wsexplorer.shared.Item, boolean, int, int, boolean)
 	 */
-	public void loadFolder(final ItemDTO item, final boolean loadGcubeProperties, final int startIdx, final int limit, final boolean resetStore) throws Exception {
+	public void loadFolder(final Item item, final boolean loadGcubeProperties, final int startIdx, final int limit, final boolean resetStore) throws Exception {
 		newLoading = resetStore;
 		GWT.log("loading folder data for Item: "+item.getId()+" [startIdx: "+startIdx +", limit: "+limit+", resetStore:"+resetStore+"]");
 		//super.loadFolder(item, loadGcubeProperties);
@@ -182,7 +182,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	 * @param purgeEmpyFolders the purge empy folders
 	 * @param showableTypesParam the showable types param
 	 */
-	private void perfomGetFolderChildren(final ItemDTO item, boolean loadGcubeProperties, final int startIdx, final int limit, final int serSI, boolean purgeEmpyFolders, List<ItemType> showableTypesParam){
+	private void perfomGetFolderChildren(final Item item, boolean loadGcubeProperties, final int startIdx, final int limit, final int serSI, boolean purgeEmpyFolders, List<ItemType> showableTypesParam){
 		GWT.log("loading workspace folder by item id from server: "+item.getId());
 
 		SearchedFolder page = getCachePage(item, startIdx, limit);
@@ -228,10 +228,10 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 			getCellTable().setVisibleRangeAndClearData(new Range(result.getClientStartIndex(), WorkspaceExplorerConstants.ITEMS_PER_PAGE), false);
 		}
 
-		SelectionModel<? super ItemDTO> sm = getCellTable().getSelectionModel();
+		SelectionModel<? super Item> sm = getCellTable().getSelectionModel();
 
 		if(sm instanceof SingleSelectionModel){
-			SingleSelectionModel<ItemDTO> ssm = (SingleSelectionModel<ItemDTO>) sm;
+			SingleSelectionModel<Item> ssm = (SingleSelectionModel<Item>) sm;
 			ssm.clear();
 		}
 
@@ -268,7 +268,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	 * @param item the item
 	 * @param result the result
 	 */
-	private void setCachePage(ItemDTO item, SearchedFolder result){
+	private void setCachePage(Item item, SearchedFolder result){
 
 		String key = getCacheKey(item, result.getClientStartIndex(), result.getLimit());
 
@@ -287,7 +287,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	 * @param limit the limit
 	 * @return the cache page
 	 */
-	private SearchedFolder getCachePage(ItemDTO item, int startIdx, int limit){
+	private SearchedFolder getCachePage(Item item, int startIdx, int limit){
 
 		String key = getCacheKey(item, startIdx, limit);
 
@@ -303,7 +303,7 @@ public class WorkspaceExplorerPaginated extends WorkspaceExplorer{
 	 * @param limit the limit
 	 * @return the cache key
 	 */
-	private String getCacheKey(ItemDTO item, int startIdx, int limit){
+	private String getCacheKey(Item item, int startIdx, int limit){
 
 		if(item==null || startIdx<0 || limit< 0)
 			return null;

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/gcubeitem/DialogShowGcubeItem.java

@@ -8,7 +8,7 @@ import java.util.Map;
 import org.gcube.portlets.widgets.wsexplorer.client.Util;
 import org.gcube.portlets.widgets.wsexplorer.client.WorkspaceExplorerConstants;
 import org.gcube.portlets.widgets.wsexplorer.client.resources.WorkspaceExplorerResources;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.google.gwt.core.shared.GWT;
 import com.google.gwt.dom.client.Style.Unit;
@@ -54,7 +54,7 @@ public class DialogShowGcubeItem extends DialogBox implements ClickHandler {
 	 * @param item the worksapce item id
 	 * @param autoHide the auto hide
 	 */
-	public DialogShowGcubeItem(String caption, String text, ItemDTO item, boolean autoHide) {
+	public DialogShowGcubeItem(String caption, String text, Item item, boolean autoHide) {
 		getElement().setClassName("gwt-DialogBoxNew");
 		dock.setSpacing(4);
 		dock.setWidth("100%");

src/main/java/org/gcube/portlets/widgets/wsexplorer/client/view/grid/ItemsTable.java

@@ -15,7 +15,7 @@ import org.gcube.portlets.widgets.wsexplorer.client.WorkspaceExplorerConstants;
 import org.gcube.portlets.widgets.wsexplorer.client.resources.WorkspaceExplorerResources;
 import org.gcube.portlets.widgets.wsexplorer.client.view.SelectionItem;
 import org.gcube.portlets.widgets.wsexplorer.client.view.gcubeitem.DialogShowGcubeItem;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 import com.github.gwtbootstrap.client.ui.Pagination;
 import com.google.gwt.cell.client.ButtonCell;
@@ -49,7 +49,7 @@ import com.google.gwt.view.client.ListDataProvider;
  * Feb 19, 2015
  * @param <T> the generic type
  */
-public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> implements SelectionItem{
+public class ItemsTable<T extends Item> extends AbstractItemsCellTable<T> implements SelectionItem{
 
 	private Column<T, ImageResource> icon;
 	private TextColumn<T> name;
@@ -134,7 +134,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 		//this.isAsyncronusTable = dataProvider instanceof AbstractDataProvider?true:false;
 		this.isAsyncronusTable = dataProvider instanceof ListDataProvider?false:true;
 
-		sortedCellTable.setEmptyTableWidget(new Label("No data."));
+		sortedCellTable.setEmptyTableWidget(new Label(WorkspaceExplorerConstants.WORKSPACE_FOLDER_EMPTY_MESSAGE));
 
 	    if(this.displayFields.contains(DISPLAY_FIELD.ICON)){
 			//ICONS
@@ -162,7 +162,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 		    };
 //		    icon.setSortable(false);
 		    sortedCellTable.addColumn(icon, "", false);
-		    sortedCellTable.setColumnWidth(icon, 25.0, Unit.PX);
+		    sortedCellTable.setColumnWidth(icon, 32.0, Unit.PX);
 	    }
 
 	    if(this.displayFields.contains(DISPLAY_FIELD.NAME)){
@@ -173,7 +173,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 				public String getValue(T object) {
 					if(object==null)
 						return "";
-					return ((ItemDTO) object).getName();
+					return ((Item) object).getName();
 				}
 
 				//ADDING TOOLTIP
@@ -181,7 +181,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 				public void render(com.google.gwt.cell.client.Cell.Context context, T object, SafeHtmlBuilder sb) {
 					if(object == null)
 						return;
-					sb.appendHtmlConstant("<div title=\""+((ItemDTO) object).getName()+"\">");
+					sb.appendHtmlConstant("<div title=\""+((Item) object).getName()+"\">");
 					super.render(context, object, sb);
 					sb.appendHtmlConstant("</div>");
 				};
@@ -193,7 +193,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 				Comparator<T> c = new Comparator<T>() {
 					@Override
 					public int compare(T o1, T o2) {
-						return ((ItemDTO) o1).getName().compareTo(((ItemDTO) o2).getName());
+						return ((Item) o1).getName().compareTo(((Item) o2).getName());
 					}
 				};
 
@@ -209,7 +209,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 				public String getValue(T object) {
 					if(object==null)
 						return "";
-					return ((ItemDTO) object).getOwner() != null ? ((ItemDTO) object).getOwner() : "";
+					return ((Item) object).getOwner() != null ? ((Item) object).getOwner() : "";
 				}
 			};
 
@@ -219,7 +219,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 				Comparator<T> c = new Comparator<T>() {
 					@Override
 					public int compare(T o1, T o2) {
-						return ((ItemDTO) o1).getOwner().compareTo(((ItemDTO) o2).getOwner());
+						return ((Item) o1).getOwner().compareTo(((Item) o2).getOwner());
 					}
 				};
 				sortedCellTable.setComparator(owner, c);
@@ -236,7 +236,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 				public Date getValue(T object) {
 					if(object==null)
 						return null;
-					return ((ItemDTO) object).getCreationDate();
+					return ((Item) object).getCreationDate();
 				}
 	    	};
 	    	sortedCellTable.addColumn(dateColumn, "Created", true);
@@ -251,8 +251,8 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 		    			if(o2 == null || o2.getCreationDate()==null)
 	 						return 1;
 
-		    			Date d1 = ((ItemDTO) o1).getCreationDate();
+		    			Date d1 = ((Item) o1).getCreationDate();
-		    			Date d2 = ((ItemDTO) o2).getCreationDate();
+		    			Date d2 = ((Item) o2).getCreationDate();
 
 	//	    			GWT.log(d1.toString() + "is after "+d2.toString() +" ? "+d2.after(d1));
 
@@ -276,9 +276,9 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 	    		 TextColumn<T> textColumn = new TextColumn<T>() {
 	 				@Override
 	 				public String getValue(T object) {
-	 					ItemDTO extensionItem;
+	 					Item extensionItem;
 	 					String value = null;
-	 					if(object instanceof ItemDTO){
+	 					if(object instanceof Item){
 	 						extensionItem = object;
 	 						value = extensionItem.getGcubeProperties().get(column);
 	 					}
@@ -292,14 +292,14 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 		 				@Override
 		 				public int compare(T o1, T o2) {
 
-		 					if(!(o1 instanceof ItemDTO))
+		 					if(!(o1 instanceof Item))
 		 						return -1;
 
-		 					if(!(o2 instanceof ItemDTO))
+		 					if(!(o2 instanceof Item))
 		 						return 1;
 
-		 					ItemDTO e1 = o1;
+		 					Item e1 = o1;
-		 					ItemDTO e2 = o2;
+		 					Item e2 = o2;
 		 					String v1 = e1.getGcubeProperties().get(column);
 		 					String v2 = e2.getGcubeProperties().get(column);
 
@@ -348,7 +348,7 @@ public class ItemsTable<T extends ItemDTO> extends AbstractItemsCellTable<T> imp
 					Context context, Element elem, T object, NativeEvent event) {
 				 	super.onBrowserEvent(context, elem, object, event);
 		            if ("click".equals(event.getType())) {
-		            	ItemDTO item = object;
+		            	Item item = object;
 		    	    	DialogShowGcubeItem dg = new DialogShowGcubeItem("Gcube Properties for: "+item.getName(), null, item, true);
 //		    	    	dg.setPopupPosition(event.getClientX()-Integer.parseInt(dg.getElement().getStyle().getWidth()), event.getClientY());
 		    	    	dg.center();

src/main/java/org/gcube/portlets/widgets/wsexplorer/public/workspaceExplorer.css

@@ -6,3 +6,6 @@
 * See: org.gcube.portlets.widgets.wsexplorer.resources.BootstrapOverrideResources
 *
 **************************************************/
+div.ExpLeftPanel li {
+	 list-style-type: none;
+}

src/main/java/org/gcube/portlets/widgets/wsexplorer/server/ItemBuilder.java

@@ -21,7 +21,6 @@ import org.gcube.portlets.widgets.wsexplorer.client.Util;
 import org.gcube.portlets.widgets.wsexplorer.client.WorkspaceExplorerConstants;
 import org.gcube.portlets.widgets.wsexplorer.server.stohub.Whorespace;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -29,49 +28,12 @@ import org.slf4j.LoggerFactory;
 /**
  * The Class ItemBuilder.
  *
- * @author Federico De Faveri defaveri@isti.cnr.it
+ * @author Francesco Mangiacrapa, CNR-ISTI
- * Modified by Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * @author M. Assante, CNR-ISTI
  */
 public class ItemBuilder {
 
-	public static final Logger logger = LoggerFactory.getLogger(ItemBuilder.class);
+	public static final Logger _log = LoggerFactory.getLogger(ItemBuilder.class);
-	/**
-	 * Purge empty folders.
-	 *
-	 * @param item the item
-	 * @return the item
-	 */
-	public static ItemDTO purgeEmptyFolders(ItemDTO item)
-	{
-		//for (Item child:item.getChildren()) purgeEmptyFolders(child); ONLY FIRST LEVEL
-
-		List<ItemDTO> toRemoveList = new LinkedList<ItemDTO>();
-		for (ItemDTO child:item.getChildren()) {
-			boolean toRemove = isAnEmptyFolder(child);
-			if (toRemove) {
-				toRemoveList.add(child);
-			}
-		}
-		for (ItemDTO child:toRemoveList) {
-			item.removeChild(child);
-		}
-
-		return item;
-	}
-
-
-	/**
-	 * Checks if is an empty folder.
-	 *
-	 * @param item the item
-	 * @return true, if is an empty folder
-	 */
-	protected static boolean isAnEmptyFolder(ItemDTO item)
-	{
-		return Util.isFolder(item.getType()) && item.getChildren().size() == 0;
-	}
-
-
 	/**
 	 * Gets the item.
 	 *
@@ -85,7 +47,7 @@ public class ItemBuilder {
 	 * @return the item
 	 * @throws InternalErrorException the internal error exception
 	 */
-	public static ItemDTO getItem(ItemDTO parent, Item workspaceItem, String workspaceItemPath, 
+	public static org.gcube.portlets.widgets.wsexplorer.shared.Item getItem(org.gcube.portlets.widgets.wsexplorer.shared.Item parent, Item workspaceItem, String workspaceItemPath, 
 			List<ItemType> showableTypes, FilterCriteria filterCriteria, 
 			boolean loadChildren, boolean loadGcubeProperties) {
 
@@ -98,25 +60,22 @@ public class ItemBuilder {
 			return null;
 		}
 
-		//		//TODO ADD CONTROL ON THE PATH WHEN WILL BE MORE FAST
-		//		if (itemName.equals(WorkspaceExplorerConstants.SPECIAL_FOLDERS_LABEL))
-		//			itemName = WorkspaceExplorerConstants.VRE_FOLDERS_LABEL;
-
 		boolean isFolder = type.equals(ItemType.PRIVATE_FOLDER)?true:false;
 		boolean isSharedFolder = (type.equals(ItemType.SHARED_FOLDER) || type.equals(ItemType.VRE_FOLDER )) ? true : false;
+		if (isSharedFolder)
+			isFolder = true;
 
 		String itemName =  workspaceItem.getName();
 
 		if(isSharedFolder){
-			logger.info("Is shared folder: "+workspaceItem.getTitle());
+			_log.info("Is shared folder: "+workspaceItem.getTitle());
 			SharedFolder shared = (SharedFolder) workspaceItem;
-			itemName = shared.isVreFolder()?shared.getDisplayName():workspaceItem.getTitle();
+			itemName = shared.isVreFolder() ? shared.getDisplayName() : workspaceItem.getTitle();
 		}
 
-		//		_log.debug("Building Item for: "+itemName);
+		org.gcube.portlets.widgets.wsexplorer.shared.Item item = null;
-		ItemDTO item = null;
 		try{
-			item = new ItemDTO(parent, workspaceItem.getId(), itemName, type, workspaceItemPath, UserUtil.getUserFullName(workspaceItem.getOwner()), toDate(workspaceItem.getCreationTime()), isFolder, false);
+			item = new org.gcube.portlets.widgets.wsexplorer.shared.Item(parent, workspaceItem.getId(), itemName, type, workspaceItemPath, UserUtil.getUserFullName(workspaceItem.getOwner()), toDate(workspaceItem.getCreationTime()), isFolder, false);
 			item.setSharedFolder(isSharedFolder);
 
 			if(loadGcubeProperties){
@@ -124,7 +83,7 @@ public class ItemBuilder {
 				item.setGcubeProperties(itemProperties);
 			}
 		}catch(Exception e){
-			logger.error("Error on getting item: "+itemName+" with id: "+workspaceItem.getId()+", from HL, so skipping item");
+			_log.error("Error on getting item: "+itemName+" with id: "+workspaceItem.getId()+", from HL, so skipping item");
 			return null;
 		}
 
@@ -135,8 +94,8 @@ public class ItemBuilder {
 			theChildren = client.getChildren(itemId, Whorespace.ACCOUNTING_HL_NODE_NAME);
 			for (Item child : theChildren) {
 				String itemPath = workspaceItemPath+"/"+child.getName();
-				ItemDTO itemChild = getItem(item, child, itemPath, showableTypes, filterCriteria, false, loadGcubeProperties);
+				org.gcube.portlets.widgets.wsexplorer.shared.Item itemChild = getItem(item, child, itemPath, showableTypes, filterCriteria, false, loadGcubeProperties);
-				logger.trace("Item: "+child.getName() +" converted!!!");
+				_log.trace("Item: "+child.getName() +" converted!!!");
 				if (itemChild!=null){
 					item.addChild(itemChild);
 				}
@@ -163,7 +122,7 @@ public class ItemBuilder {
 	 * @return the item
 	 * @throws InternalErrorException the internal error exception
 	 */
-	public static ItemDTO getItem(ItemDTO parent, Item workspaceItem, String workspaceItemPath, 
+	public static org.gcube.portlets.widgets.wsexplorer.shared.Item getItem(org.gcube.portlets.widgets.wsexplorer.shared.Item parent, Item workspaceItem, String workspaceItemPath, 
 			List<ItemType> showableTypes, FilterCriteria filterCriteria, 
 			boolean loadChildren, boolean loadGcubeProperties, int startIdx, int limit)  {
 
@@ -181,21 +140,23 @@ public class ItemBuilder {
 		String itemName =  workspaceItem.getName();
 
 		if(isSharedFolder){
-			logger.info("Is shared folder: "+workspaceItem.getTitle());
+			_log.info("Is shared folder: "+workspaceItem.getTitle());
 			SharedFolder shared = (SharedFolder) workspaceItem;
 			itemName = shared.isVreFolder()?shared.getDisplayName():workspaceItem.getTitle();
+			isFolder = true;
 		}
-
+	
-
 		//		_log.debug("Building Item for: "+itemName);
-		ItemDTO item = null;
+		org.gcube.portlets.widgets.wsexplorer.shared.Item item = null;
 		try{
 			//THIS CALL IS VERY SLOW!!
 			//			String storageID = null;
 			//			if(workspaceItem instanceof FolderItem){
 			//				storageID = workspaceItem.getStorageID();
 			//			}
-			item = new ItemDTO(parent, workspaceItem.getId(), itemName, type, workspaceItemPath, UserUtil.getUserFullName(workspaceItem.getOwner()), toDate(workspaceItem.getCreationTime()), isFolder, false);
+			item = new org.gcube.portlets.widgets.wsexplorer.shared.Item(
+					parent, workspaceItem.getId(), itemName, type, workspaceItemPath, 
+					UserUtil.getUserFullName(workspaceItem.getOwner()), toDate(workspaceItem.getCreationTime()), isFolder, false);
 			item.setSharedFolder(isSharedFolder);
 
 			if(loadGcubeProperties){
@@ -203,7 +164,7 @@ public class ItemBuilder {
 				item.setGcubeProperties(itemProperties);
 			}
 		}catch(Exception e){
-			logger.error("Error on getting item: "+itemName+" with id: "+workspaceItem.getId()+", from HL, so skipping item");
+			_log.error("Error on getting item: "+itemName+" with id: "+workspaceItem.getId()+", from HL, so skipping item");
 			return null;
 		}
 
@@ -214,8 +175,8 @@ public class ItemBuilder {
 			theChildren = client.getChildren(itemId, Whorespace.ACCOUNTING_HL_NODE_NAME);
 			for (Item child : theChildren) {
 				String itemPath = workspaceItemPath+"/"+child.getName();
-				ItemDTO itemChild = getItem(item, child, itemPath, showableTypes, filterCriteria, false, loadGcubeProperties);
+				org.gcube.portlets.widgets.wsexplorer.shared.Item itemChild = getItem(item, child, itemPath, showableTypes, filterCriteria, false, loadGcubeProperties);
-				logger.trace("Item: "+child.getName() +" converted!!!");
+				_log.trace("Item: "+child.getName() +" converted!!!");
 				if (itemChild!=null){
 					item.addChild(itemChild);
 				}
@@ -234,15 +195,76 @@ public class ItemBuilder {
 	 */
 	protected static ItemType getItemType(Item item) {
 		if (item instanceof AbstractFileItem) {
-			return ItemType.EXTERNAL_FILE;
+			return getFileIconImageType( item);
 		}
 		else if (item instanceof FolderItem) {
 			return getFolderItemType(item);
 		}
-		logger.warn("Item Type non found: ");
+		_log.warn("\n\n\n**** Item Type non found: ");
 		return ItemType.UNKNOWN_TYPE;
 
 	}
+	/**
+	 * 
+	 * @param item
+	 * @return the item type based on the extension of the file
+	 */
+	private static ItemType getFileIconImageType(Item item) {
+		String[] splits =  item.getName().split("\\.");
+		String extension = "";
+		if (splits.length > 0) {
+			extension = splits[splits.length-1];
+		}
+		if (extension == null || extension.compareTo("") == 0)
+			return ItemType.UNKNOWN_TYPE;
+		extension = extension.toLowerCase();
+		switch (extension) {
+		case "doc":
+		case "docx":
+			return ItemType.DOCUMENT;
+		case "rtf":
+		case "txt":
+			return ItemType.TEXT_PLAIN;
+		case "xls":
+		case "xlsx":
+			return ItemType.SPREADSHEET;
+		case "csv":
+			return ItemType.CSV;
+		case "ics":
+			return ItemType.CALENDAR;
+		case "ppt":
+		case "pptx":
+			return ItemType.PRESENTATION;
+		case "pdf":
+			return ItemType.PDF_DOCUMENT;
+		case "jpg":
+		case "jpeg":
+		case "gif":
+		case "bmp":
+		case "png":
+		case "tif":
+		case "tiff":
+			return ItemType.IMAGE_DOCUMENT;
+		case "avi":
+		case "mp4":
+		case "mpeg":
+			return ItemType.MOVIE;
+		case "html":
+		case "htm":
+		case "jsp":
+			return ItemType.HTML;
+		case "rar":
+			return ItemType.RAR;
+		case "zip":
+		case "tar":
+		case "tar.gz":
+		case ".cpgz":
+		case ".gz":
+			return ItemType.ZIP;
+		default:
+			return ItemType.UNKNOWN_TYPE;
+		}
+	}
 
 	/**
 	 * Gets the folder item type.
@@ -251,16 +273,19 @@ public class ItemBuilder {
 	 * @return the folder item type
 	 */
 	protected static ItemType getFolderItemType(Item item){
+		System.out.println("***\n\n\"+getFolderItemType " + item.getTitle());
 		if (item instanceof SharedFolder || item instanceof VreFolder) {
 			SharedFolder folder = (SharedFolder) item;
-			if (folder.isVreFolder())
+			if (folder.isVreFolder()) 
 				return ItemType.VRE_FOLDER;
+			System.out.println("***" + item.getTitle() + " is a SHARED FOLDER");
 			return ItemType.SHARED_FOLDER;
 		} else if (item instanceof FolderItem) {
+			System.out.println("***" + item.getTitle() + " is a PRIVATE FOLDER");
 			return ItemType.PRIVATE_FOLDER;
 		}
-		logger.warn("Item Type non found: ");
+		_log.warn("Item Type non found: ");
-		return ItemType.UNKNOWN_TYPE;
+		return ItemType.PRIVATE_FOLDER;
 	}
 
 
@@ -335,7 +360,7 @@ public class ItemBuilder {
 			}
 			return true;
 		} catch (Exception e) {
-			logger.error("checkAllowedFileExtension, InternalErrorException: ",e);
+			_log.error("checkAllowedFileExtension, InternalErrorException: ",e);
 			return false;
 		}
 	}
@@ -357,7 +382,7 @@ public class ItemBuilder {
 		if(dot>=0 && dot+1<=fileName.length()){
 
 			String ext = fileName.substring(dot+1, fileName.length());
-			logger.trace("Extension found: "+ext +" for: "+fileName);
+			_log.trace("Extension found: "+ext +" for: "+fileName);
 			//			if(ext.isEmpty())
 			//				return false;
 			for (String fe : allowedFileExtension) {
@@ -367,7 +392,7 @@ public class ItemBuilder {
 			}
 			return false;
 		}
-		logger.trace("Extension not found for: "+fileName);
+		_log.trace("Extension not found for: "+fileName);
 		return false;
 	}
 
@@ -434,7 +459,7 @@ public class ItemBuilder {
 	 * @return the item
 	 * @throws InternalErrorException the internal error exception
 	 */
-	public static ItemDTO buildFolderForBreadcrumbs(FolderItem wsFolder, ItemDTO parent){
+	public static org.gcube.portlets.widgets.wsexplorer.shared.Item buildFolderForBreadcrumbs(FolderItem wsFolder, org.gcube.portlets.widgets.wsexplorer.shared.Item parent){
 
 		String name = "";
 		boolean isSpecialFolder = false;
@@ -457,10 +482,10 @@ public class ItemBuilder {
 
 		//BUILDS A SIMPLE ITEM FOR BREADCRUMB
 		String path = null; //wsFolder.getPath(); FORCED TO NULL BECAUSE IS SLOW CALL
-		ItemDTO item = new ItemDTO(null, wsFolder.getId(), name, ItemType.FOLDER, path, null, null, true, isRoot);
+		org.gcube.portlets.widgets.wsexplorer.shared.Item item = new org.gcube.portlets.widgets.wsexplorer.shared.Item(null, wsFolder.getId(), name, ItemType.FOLDER, path, null, null, true, isRoot);
 		item.setSpecialFolder(isSpecialFolder);
 
-		logger.debug("breadcrumb returning: "+item);
+		_log.debug("breadcrumb returning: "+item);
 		return item;
 	}
 
@@ -481,12 +506,42 @@ public class ItemBuilder {
 	 * @param calendar the calendar
 	 * @return the date
 	 */
-	public static  Date toDate(Calendar calendar)
+	public static  Date toDate(Calendar calendar) {
-	{
 		if (calendar == null) return null;
 		return calendar.getTime();
 
 	}
+	/**
+	 * Purge empty folders.
+	 *
+	 * @param item the item
+	 * @return the item
+	 */
+	public static org.gcube.portlets.widgets.wsexplorer.shared.Item purgeEmptyFolders(org.gcube.portlets.widgets.wsexplorer.shared.Item item) {
+		List<org.gcube.portlets.widgets.wsexplorer.shared.Item> toRemoveList = new LinkedList<org.gcube.portlets.widgets.wsexplorer.shared.Item>();
+		for (org.gcube.portlets.widgets.wsexplorer.shared.Item child:item.getChildren()) {
+			boolean toRemove = isAnEmptyFolder(child);
+			if (toRemove) {
+				toRemoveList.add(child);
+			}
+		}
+		for (org.gcube.portlets.widgets.wsexplorer.shared.Item child:toRemoveList) {
+			item.removeChild(child);
+		}
+
+		return item;
+	}
+
+
+	/**
+	 * Checks if is an empty folder.
+	 *
+	 * @param item the item
+	 * @return true, if is an empty folder
+	 */
+	protected static boolean isAnEmptyFolder(org.gcube.portlets.widgets.wsexplorer.shared.Item item) {
+		return Util.isFolder(item.getType()) && item.getChildren().size() == 0;
+	}
 	/*
 	public static void main(String[] args) {
 		List<String> allowedFileExtension = new ArrayList<String>();

src/main/java/org/gcube/portlets/widgets/wsexplorer/server/ItemComparator.java

@@ -7,20 +7,20 @@ import java.util.Comparator;
 
 import org.gcube.portlets.widgets.wsexplorer.client.Util;
 import org.gcube.portlets.widgets.wsexplorer.client.WorkspaceExplorerConstants;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
+import org.gcube.portlets.widgets.wsexplorer.shared.Item;
 
 
 /**
  * A comparator that sorts the items first by type, folder up others down, the each group alphabetically on the item name. 
  * @author "Federico De Faveri defaveri@isti.cnr.it"
  */
-public class ItemComparator implements Comparator<ItemDTO> {
+public class ItemComparator implements Comparator<Item> {
 
 	/**
 	 * {@inheritDoc}
 	 */
 	@Override
-	public int compare(ItemDTO item1, ItemDTO item2) {
+	public int compare(Item item1, Item item2) {
 
 		//if one of the item is folder and the other one not, we move up the folder
 		boolean isItem1Folder = Util.isFolder(item1.getType());
@@ -36,7 +36,7 @@ public class ItemComparator implements Comparator<ItemDTO> {
 		return String.CASE_INSENSITIVE_ORDER.compare(item1.getName(), item2.getName());		
 	}
 
-	private boolean isSpecialFolder(ItemDTO item) {
+	private boolean isSpecialFolder(Item item) {
 //		return item.getName().equals(WorkspaceExplorerConstants.VRE_FOLDERS_LABEL) && item.getParent()!=null && item.getParent().isRoot();
 		return item.getName().equals(WorkspaceExplorerConstants.VRE_FOLDERS_LABEL) && item.isSpecialFolder();
 	}

src/main/java/org/gcube/portlets/widgets/wsexplorer/server/WorkspaceExplorerServiceImpl.java

@@ -9,8 +9,6 @@ import java.util.concurrent.TimeUnit;
 
 import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
 import org.gcube.common.portal.PortalContext;
-import org.gcube.common.storagehub.client.plugins.AbstractPlugin;
-import org.gcube.common.storagehub.client.proxies.WorkspaceManagerClient;
 import org.gcube.common.storagehub.model.items.FolderItem;
 import org.gcube.common.storagehub.model.items.Item;
 import org.gcube.common.storagehub.model.items.SharedFolder;
@@ -20,7 +18,6 @@ import org.gcube.portlets.widgets.wsexplorer.client.rpc.WorkspaceExplorerService
 import org.gcube.portlets.widgets.wsexplorer.server.stohub.Whorespace;
 import org.gcube.portlets.widgets.wsexplorer.shared.FilterCriteria;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemCategory;
-import org.gcube.portlets.widgets.wsexplorer.shared.ItemDTO;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemInterface;
 import org.gcube.portlets.widgets.wsexplorer.shared.ItemType;
 import org.gcube.portlets.widgets.wsexplorer.shared.SearchedFolder;
@@ -45,7 +42,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * {@inheritDoc}
 	 */
 	@Override
-	public ItemDTO getRoot(List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria) throws WorkspaceNavigatorServiceException {
+	public org.gcube.portlets.widgets.wsexplorer.shared.Item getRoot(List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria) throws WorkspaceNavigatorServiceException {
 		logger.trace("getRoot showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+ filterCriteria);
 
 		try {
@@ -62,7 +59,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 			long startTime = System.currentTimeMillis();
 			logger.trace("start time - " + startTime);
 
-			ItemDTO rootItem = ItemBuilder.getItem(null, root, root.getPath(), showableTypes, filterCriteria, true, false);
+			org.gcube.portlets.widgets.wsexplorer.shared.Item rootItem = ItemBuilder.getItem(null, root, root.getPath(), showableTypes, filterCriteria, true, false);
 			rootItem.setName(WorkspaceExplorerConstants.HOME_LABEL);
 			rootItem.setIsRoot(true);
 
@@ -89,7 +86,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * {@inheritDoc}
 	 */
 	@Override
-	public ItemDTO getFolder(ItemInterface item, List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria, boolean loadGcubeProperties) throws WorkspaceNavigatorServiceException {
+	public org.gcube.portlets.widgets.wsexplorer.shared.Item getFolder(ItemInterface item, List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria, boolean loadGcubeProperties) throws WorkspaceNavigatorServiceException {
 		logger.trace("getFolder folderId: "+item.getId()+" showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+filterCriteria);
 
 		try {
@@ -104,7 +101,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 			
 			//TO AVOID SLOW CALL getPATH()
 			String folderPath = item.getPath()!=null && !item.getPath().isEmpty()?item.getPath():folder.getPath();
-			ItemDTO itemFolder = ItemBuilder.getItem(null, folder, folderPath, showableTypes, filterCriteria, true, loadGcubeProperties);
+			org.gcube.portlets.widgets.wsexplorer.shared.Item itemFolder = ItemBuilder.getItem(null, folder, folderPath, showableTypes, filterCriteria, true, loadGcubeProperties);
 //			_log.trace("Only showable types:");
 
 			if (purgeEmpyFolders) {
@@ -133,7 +130,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * @throws WorkspaceNavigatorServiceException the workspace navigator service exception
 	 */
 	@Override
-	public ItemDTO getItemByCategory(ItemCategory category) throws WorkspaceNavigatorServiceException{
+	public org.gcube.portlets.widgets.wsexplorer.shared.Item getItemByCategory(ItemCategory category) throws WorkspaceNavigatorServiceException{
 		logger.trace("GetItemByCategory category: "+category);
 		PortalContext pContext = PortalContext.getConfiguration();
 		String userName = pContext.getCurrentUser(getThreadLocalRequest()).getUsername();
@@ -143,7 +140,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 
 		try {
 	
-			ItemDTO item = null;
+			org.gcube.portlets.widgets.wsexplorer.shared.Item item = null;
 
 			switch(category){
 				case HOME:{
@@ -154,13 +151,13 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 					}else if(fullName.indexOf(".")>0){
 						fullName = fullName.substring(0, fullName.indexOf("."));
 					}
-					item = new ItemDTO(null, root.getId(), fullName+"'s", ItemType.FOLDER, root.getPath(), root.getOwner(), null, true, true);
+					item = new org.gcube.portlets.widgets.wsexplorer.shared.Item(null, root.getId(), fullName+"'s", ItemType.FOLDER, root.getPath(), root.getOwner(), null, true, true);
 					break;
 				}
 				case VRE_FOLDER:{
 					String vreFolderId = Whorespace.getVREFoldersId(getThreadLocalRequest());
 					Item folder = Whorespace.getItem(getThreadLocalRequest(), vreFolderId);
-					item = new ItemDTO(null, folder.getId(), WorkspaceExplorerConstants.VRE_FOLDERS_LABEL, ItemType.FOLDER, folder.getPath(), folder.getOwner(), null, true, false);
+					item = new org.gcube.portlets.widgets.wsexplorer.shared.Item(null, folder.getId(), WorkspaceExplorerConstants.VRE_FOLDERS_LABEL, ItemType.FOLDER, folder.getPath(), folder.getOwner(), null, true, false);
 					//SET SPECIAL FOLDER  /Workspace/MySpecialFolders
 					item.setSpecialFolder(true);
 					break;
@@ -177,7 +174,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * {@inheritDoc}
 	 */
 	@Override
-	public ItemDTO getMySpecialFolder(List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria) throws WorkspaceNavigatorServiceException {
+	public org.gcube.portlets.widgets.wsexplorer.shared.Item getMySpecialFolder(List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria) throws WorkspaceNavigatorServiceException {
 		logger.trace("GetMySpecialFolder showableTypes: "+showableTypes+" purgeEmpyFolders: "+purgeEmpyFolders+" filterCriteria: "+filterCriteria);
 
 		try {
@@ -192,7 +189,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 			long startTime = System.currentTimeMillis();
 			logger.trace("start time - " + startTime);
 
-			ItemDTO itemFolder = ItemBuilder.getItem(null, folder, folder.getPath(), showableTypes, filterCriteria, true, false);
+			org.gcube.portlets.widgets.wsexplorer.shared.Item itemFolder = ItemBuilder.getItem(null, folder, folder.getPath(), showableTypes, filterCriteria, true, false);
 			//OVERRIDING VRE FOLDERS NAME - SET SPECIAL FOLDER  /Workspace/MySpecialFolders
 			itemFolder.setName(WorkspaceExplorerConstants.VRE_FOLDERS_LABEL);
 			itemFolder.setSpecialFolder(true);
@@ -249,70 +246,16 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * @throws Exception the exception
 	 */
 	@Override
-	public List<ItemDTO> getBreadcrumbsByItemIdentifier(String itemIdentifier, boolean includeItemAsParent) throws Exception {
+	public ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item> getBreadcrumbsByItemIdentifier(String itemIdentifier, String itemName, boolean includeItemAsParent) throws Exception {
 		logger.trace("ListParents By Item Identifier "+ itemIdentifier);
 		try {
-
+			List<? extends Item> parents = Whorespace.getParents(getThreadLocalRequest(), itemIdentifier);
-			Item wsItem = Whorespace.getItem(getThreadLocalRequest(), itemIdentifier);
+			System.out.println("parents size: "+parents.size() + " follows them in order");
-			logger.trace("workspace retrieve item name: "+wsItem.getName());
+			ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item> toReturn = new ArrayList<>(parents.size());
-			List<Item> parents = new ArrayList<>();		
+			Collections.reverse(toReturn);
-			Item whileItem = wsItem;
+			String theClickedFolderName = (itemName == null || itemName.equals("")) ? "current folder" : itemName;
-			while (whileItem.getParentId() != null) {
+			toReturn.add(new org.gcube.portlets.widgets.wsexplorer.shared.Item(itemIdentifier, theClickedFolderName, true)); //this is the last non clickable item on the BC
-				parents.add(whileItem);
+			return toReturn;
-				whileItem = Whorespace.getItem(getThreadLocalRequest(), whileItem.getParentId());
-			}
-		//	List<Item> parents = workspace.getParentsById(itemIdentifier);
-			logger.trace("parents size: "+parents.size());
-			ItemDTO[] arrayParents;			
-			if(includeItemAsParent==true && wsItem instanceof FolderItem){
-				arrayParents = new ItemDTO[parents.size()];
-				arrayParents[parents.size()-1] = ItemBuilder.buildFolderForBreadcrumbs((FolderItem) wsItem, null);
-			}
-			else {
-				arrayParents = new ItemDTO[parents.size()-1];
-			}
-
-			/** HANDLE MY_SPECIAL_FOLDER TO AVOID COMPLETE PATH WORKSPACE/MY_SPECIAL_FOLDER
-			 * BUT RETURNING ONLY /MY_SPECIAL_FOLDER
-			 */
-			if(wsItem instanceof FolderItem){
-				if(ItemBuilder.isSpecialFolder((FolderItem) wsItem)){
-					return new ArrayList<ItemDTO>(Arrays.asList(arrayParents));
-				}
-			}
-
-			//CONVERTING PATH
-			logger.trace("converting path from second-last..");
-			for (int i =  parents.size()-2; i >= 0; i--) {
-				FolderItem wsParentFolder = (FolderItem) parents.get(i);
-				arrayParents[i] = ItemBuilder.buildFolderForBreadcrumbs(wsParentFolder, null);
-				if(arrayParents[i].isSpecialFolder()){ //SKIP HOME PARENT FOR MY_SPECIAL_FOLDER
-					logger.info("arrayParents index "+i+" is special folder, exit");
-					break;
-				}
-			}
-
-			//SET PARENTS
-			logger.trace("setting parents..");
-			for(int i=0; i<arrayParents.length-1; i++){
-
-				ItemDTO parent = arrayParents[i];
-				ItemDTO fileModel = arrayParents[i+1];
-				fileModel.setParent(parent);
-			}
-
-			logger.trace("ListParents return size: "+arrayParents.length);
-			if(arrayParents[0]==null){ //EXIT BY BREAK IN CASE OF SPECIAL FOLDER
-				List<ItemDTO> breadcrumbs = new ArrayList<ItemDTO>(arrayParents.length-1);
-				for (int i=1; i<arrayParents.length; i++) {
-					breadcrumbs.add(arrayParents[i]);
-				}
-				return breadcrumbs;
-			}
-			else {
-				return new ArrayList<ItemDTO>(Arrays.asList(arrayParents));
-			}
-
 		} catch (Exception e) {
 			logger.error("Error in get List Parents By Item Identifier ", e);
 			throw new Exception("Sorry, an error occurred during path retrieving!");
@@ -329,29 +272,27 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * @throws Exception             the exception
 	 */
 	@Override
-	public List<ItemDTO> getBreadcrumbsByItemIdentifierToParentLimit(String itemIdentifier, String parentLimit, boolean includeItemAsParent) throws Exception {
+	public List<org.gcube.portlets.widgets.wsexplorer.shared.Item> getBreadcrumbsByItemIdentifierToParentLimit(String itemIdentifier, String parentLimit, boolean includeItemAsParent) throws Exception {
 		logger.trace("getBreadcrumbsByItemIdentifierToParentLimit by Item Identifier " + itemIdentifier +" and limit: "+parentLimit);
 		try {
 
 			Item wsItem = Whorespace.getItem(getThreadLocalRequest(), itemIdentifier);
-			logger.trace("workspace retrieve item name: "+wsItem.getName());
+			System.out.println("**** workspace retrieved item name: "+wsItem.getName());
-			List<Item> parents = new ArrayList<>();		
+			List<? extends Item> parents = Whorespace.getParents(getThreadLocalRequest(), itemIdentifier);
-			Item whileItem = wsItem;
+			System.out.println("parents size: "+parents.size() + " follows them in order");
-			while (whileItem.getParentId() != null) {
+			for (Item item : parents) {
-				parents.add(whileItem);
+				System.out.println("parent: "+item.getTitle());
-				whileItem = Whorespace.getItem(getThreadLocalRequest(), whileItem.getParentId());
 			}
-			logger.trace("workspace retrieve item name: "+wsItem.getName());
+			System.out.println("parents size: "+parents.size());
-			//List<WorkspaceItem> parents = workspace.getParentsById(itemIdentifier);
 			logger.trace("parents size: "+parents.size());
-			ItemDTO[] arrayParents;
+			org.gcube.portlets.widgets.wsexplorer.shared.Item[] arrayParents;
 
 			if(includeItemAsParent==true &&  wsItem instanceof FolderItem){
-				arrayParents = new ItemDTO[parents.size()];
+				arrayParents = new org.gcube.portlets.widgets.wsexplorer.shared.Item[parents.size()];
 				arrayParents[parents.size()-1] = ItemBuilder.buildFolderForBreadcrumbs((FolderItem) wsItem, null);
 			}
 			else {
-				arrayParents = new ItemDTO[parents.size()-1];
+				arrayParents = new org.gcube.portlets.widgets.wsexplorer.shared.Item[parents.size()-1];
 			}
 
 			parentLimit = parentLimit!=null?parentLimit:"";
@@ -362,12 +303,12 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 			if( wsItem instanceof FolderItem){
 				if(ItemBuilder.isSpecialFolder((FolderItem) wsItem)){
 					logger.debug("item id is special folder, returning");
-					return new ArrayList<ItemDTO>(Arrays.asList(arrayParents));
+					return new ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item>(Arrays.asList(arrayParents));
 				}
 
 				if(itemIdentifier.compareTo(parentLimit)==0){
 					logger.debug("item and parent limit are identical element, returning");
-					return new ArrayList<ItemDTO>(Arrays.asList(arrayParents));
+					return new ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item>(Arrays.asList(arrayParents));
 				}
 
 			}
@@ -390,8 +331,8 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 			logger.trace("setting parents..");
 			for(int i=0; i<arrayParents.length-1; i++){
 
-				ItemDTO parent = arrayParents[i];
+				org.gcube.portlets.widgets.wsexplorer.shared.Item parent = arrayParents[i];
-				ItemDTO fileModel = arrayParents[i+1];
+				org.gcube.portlets.widgets.wsexplorer.shared.Item fileModel = arrayParents[i+1];
 
 				if(fileModel!=null) {
 					fileModel.setParent(parent);
@@ -400,7 +341,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 
 			logger.trace("ListParents return size: "+arrayParents.length);
 			if(arrayParents[0]==null){ //EXIT BY BREAK IN CASE OF SPECIAL FOLDER OR REACHED PARENT LIMIT
-				List<ItemDTO> breadcrumbs = new ArrayList<ItemDTO>();
+				List<org.gcube.portlets.widgets.wsexplorer.shared.Item> breadcrumbs = new ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item>();
 				for (int i=1; i<arrayParents.length; i++) {
 					if(arrayParents[i]!=null) {
 						breadcrumbs.add(arrayParents[i]);
@@ -409,7 +350,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 				return breadcrumbs;
 			}
 			else {
-				return new ArrayList<ItemDTO>(Arrays.asList(arrayParents));
+				return new ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item>(Arrays.asList(arrayParents));
 			}
 
 		} catch (Exception e) {
@@ -470,25 +411,27 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 */
 	@Override
 	public String getMimeType(String itemId) throws Exception {
-
+		return "";
-		logger.info("get MimeType By ItemId "+ itemId);
+		//TODO: implement later
-		try {
+//
-			Item wsItem = Whorespace.getItem(getThreadLocalRequest(), itemId);
+//		logger.info("get MimeType By ItemId "+ itemId);
-			logger.trace("workspace retrieve item name: "+wsItem.getName());
+//		try {
-	
+//			Item wsItem = Whorespace.getItem(getThreadLocalRequest(), itemId);
-
+//			logger.trace("workspace retrieve item name: "+wsItem.getName());
-			if(! (wsItem instanceof FolderItem)) {
+//	
-				return null;
+//
-			}
+//			if(! (wsItem instanceof FolderItem)) {
-
+//				return null;
-			FolderItem folderItem = (FolderItem) wsItem;
+//			}
-			//TODO:folderItem.getMimeType(); 
+//
-			return "unknown";
+//			FolderItem folderItem = (FolderItem) wsItem;
-
+//			//TODO:folderItem.getMimeType(); 
-		} catch (Exception e) {
+//			return "unknown";
-			logger.error("get MimeType By ItemId ", e);
+//
-			throw new Exception(e.getMessage());
+//		} catch (Exception e) {
-		}
+//			logger.error("get MimeType By ItemId ", e);
+//			throw new Exception(e.getMessage());
+//		}
 	}
 
 
@@ -501,22 +444,24 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 */
 	@Override
 	public String getUserACLForFolderId(String folderId) throws Exception{
-		try {
+		//TODO: missing implementation on the back-end
-			logger.info("Get user ACL to FOLDER id: "+folderId);
+		return "unknown";
-			Item wsItem = Whorespace.getItem(getThreadLocalRequest(), folderId);
+//		try {
-			logger.trace("workspace retrieve item name: "+wsItem.getName());
+//			logger.info("Get user ACL to FOLDER id: "+folderId);
-
+//			Item wsItem = Whorespace.getItem(getThreadLocalRequest(), folderId);
-			if(!isASharedFolder(wsItem, false)) {
+//			logger.trace("workspace retrieve item name: "+wsItem.getName());
-				return "OWNER";
+//
-			}
+//			if(!isASharedFolder(wsItem, false)) {
-			else {
+//				return "OWNER";
-				return "NOT IMPLEMENTED";//TODO
+//			}
-			}
+//			else {
-		} catch (Exception e) {
+//				return "NOT IMPLEMENTED";//TODO
-			logger.error("Error in server get UserACLForFolderId", e);
+//			}
-			String error = "An error occurred when getting ACL rules for selected folder. "+e.getMessage();
+//		} catch (Exception e) {
-			throw new Exception(error);
+//			logger.error("Error in server get UserACLForFolderId", e);
-		}
+//			String error = "An error occurred when getting ACL rules for selected folder. "+e.getMessage();
+//			throw new Exception(error);
+//		}
 	}
 
 
@@ -578,7 +523,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 * @throws Exception the exception
 	 */
 	@Override
-	public ItemDTO createFolder(String nameFolder, String description, String parentId) throws Exception {
+	public org.gcube.portlets.widgets.wsexplorer.shared.Item createFolder(String nameFolder, String description, String parentId) throws Exception {
 
 		logger.debug("creating folder: "+nameFolder +", parent id: "+parentId);
 		//TODO
@@ -598,7 +543,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 //
 //			List<ItemType> allTypes = Arrays.asList(ItemType.values());
 //
-//			ItemDTO parent = null;
+//			org.gcube.portlets.widgets.wsexplorer.shared.Item parent = null;
 //			try{
 //				String parentPath = wsFolder.getParent()!=null?wsFolder.getParent().getPath():"";
 //				parent = ItemBuilder.getItem(null, wsFolder.getParent(), parentPath, allTypes, null, false, false);
@@ -676,7 +621,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 	 */
 	@Override
 	public SearchedFolder getFolder(
-		ItemDTO item, List<ItemType> showableTypes, boolean purgeEmpyFolders,
+		org.gcube.portlets.widgets.wsexplorer.shared.Item item, List<ItemType> showableTypes, boolean purgeEmpyFolders,
 		FilterCriteria filterCriteria, boolean loadGcubeProperties,
 		final int startIndex, final int limit, final int serverStartIndex) throws WorkspaceNavigatorServiceException {
 
@@ -694,7 +639,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 
 			//TO AVOID SLOW CALL getPATH()
 			String folderPath = item.getPath()!=null && !item.getPath().isEmpty()?item.getPath():folder.getPath();
-			ItemDTO itemFolderToReturn = ItemBuilder.getItem(null, folder, folderPath, showableTypes, filterCriteria, true, loadGcubeProperties, searchStartIndex, limit);
+			org.gcube.portlets.widgets.wsexplorer.shared.Item itemFolderToReturn = ItemBuilder.getItem(null, folder, folderPath, showableTypes, filterCriteria, true, loadGcubeProperties, searchStartIndex, limit);
 
 			SearchedFolder sf = new SearchedFolder(itemFolderToReturn, startIndex, limit, searchStartIndex, false);
 			int currentListCount = sf.getFolder().getChildren().size();
@@ -713,7 +658,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 				return sf;
 			}
 
-			ArrayList<ItemDTO> childrenToReturn = new ArrayList<ItemDTO>(limit);
+			ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item> childrenToReturn = new ArrayList<org.gcube.portlets.widgets.wsexplorer.shared.Item>(limit);
 			childrenToReturn.addAll(sf.getFolder().getChildren());
 
 			int offsetStartIndex = searchStartIndex;
@@ -728,7 +673,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 				if(newstartIndex < folderChildrenCount){
 					//newLimit = limit - childrenToReturn.size();
 					logger.debug("MyLg getting items with index start: "+newstartIndex + ", limit: "+limit);
-					ItemDTO newItemFolder = ItemBuilder.getItem(null, folder, folderPath, showableTypes, filterCriteria, true, loadGcubeProperties, newstartIndex, limit);
+					org.gcube.portlets.widgets.wsexplorer.shared.Item newItemFolder = ItemBuilder.getItem(null, folder, folderPath, showableTypes, filterCriteria, true, loadGcubeProperties, newstartIndex, limit);
 					int diff = limit - currentListCount; //How items are remaining
 					//int offset = 0;
 					logger.debug("MyLg new search start: "+newstartIndex + ", diff: "+diff+ ", retrieved: "+newItemFolder.getChildren().size());
@@ -782,7 +727,7 @@ public class WorkspaceExplorerServiceImpl extends RemoteServiceServlet implement
 
 	
 	@Override
-	public int getFolderChildrenCount(ItemDTO item){
+	public int getFolderChildrenCount(org.gcube.portlets.widgets.wsexplorer.shared.Item item){
 		return Whorespace.getItemChildrenCount(getThreadLocalRequest(), item.getId());
 	}
 	

src/main/java/org/gcube/portlets/widgets/wsexplorer/server/stohub/Whorespace.java

@@ -1,5 +1,6 @@
 package org.gcube.portlets.widgets.wsexplorer.server.stohub;
 
+import java.util.Collections;
 import java.util.List;
 
 import javax.servlet.http.HttpServletRequest;
@@ -10,6 +11,7 @@ import org.gcube.common.scope.api.ScopeProvider;
 import org.gcube.common.storagehub.client.plugins.AbstractPlugin;
 import org.gcube.common.storagehub.client.proxies.ItemManagerClient;
 import org.gcube.common.storagehub.client.proxies.WorkspaceManagerClient;
+import org.gcube.common.storagehub.model.items.FolderItem;
 import org.gcube.common.storagehub.model.items.Item;
 
 import com.liferay.portal.kernel.log.Log;
@@ -44,6 +46,18 @@ public class Whorespace {
 		return toReturn;
 	}
 	
+	public static List<? extends Item> getParents(HttpServletRequest request, String itemId) {
+		PortalContext pContext = PortalContext.getConfiguration();
+		String userName = pContext.getCurrentUser(request).getUsername();
+		String scope = pContext.getCurrentScope(request);
+		String authorizationToken = pContext.getCurrentUserToken(scope, userName);
+		ScopeProvider.instance.set(scope);
+		SecurityTokenProvider.instance.set(authorizationToken);
+		ItemManagerClient client = AbstractPlugin.item().build();
+		List<? extends Item> toReturn = client.getAnchestors(itemId, ACCOUNTING_HL_NODE_NAME);
+		return toReturn;
+	}
+	
 	/**
 	 * 
 	 * @param request

src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/Item.java

@@ -16,15 +16,15 @@ import com.google.gwt.user.client.rpc.IsSerializable;
  * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
  * Dec 2, 2015
  */
-public class ItemDTO implements IsSerializable, ItemInterface{
+public class Item implements IsSerializable, ItemInterface{
 
-	protected ItemDTO parent;
+	protected Item parent;
 	protected String id;
 
 	protected String name;
 	protected ItemType type;
 	protected String path;
-	protected ArrayList<ItemDTO> children;
+	protected ArrayList<Item> children;
 	private String owner;
 	private boolean isFolder;
 	private boolean isSpecialFolder = false;
@@ -37,7 +37,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	/**
 	 * Instantiates a new item.
 	 */
-	public ItemDTO() {
+	public Item() {
 	}
 	/**
 	 * Instantiates a new item.
@@ -46,12 +46,12 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 * @param name the name
 	 * @param isFolder the is folder
 	 */
-	public ItemDTO(String id, String name, boolean isFolder) {
+	public Item(String id, String name, boolean isFolder) {
 		this.id = id;
 		this.isFolder = isFolder;
 		this.name = name;
 		this.type = isFolder?ItemType.FOLDER:ItemType.UNKNOWN_TYPE;
-		this.children = new ArrayList<ItemDTO>();
+		this.children = new ArrayList<Item>();
 	}
 
 
@@ -68,7 +68,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 * @param isFolder the is folder
 	 * @param isRoot the is root
 	 */
-	public ItemDTO(ItemDTO parent, String id, String name, ItemType type, String path, String owner, Date creationDate, boolean isFolder, boolean isRoot) {
+	public Item(Item parent, String id, String name, ItemType type, String path, String owner, Date creationDate, boolean isFolder, boolean isRoot) {
 		this(parent, id, name, type, path, owner, isFolder, isRoot);
 		this.creationDate = creationDate;
 	}
@@ -86,12 +86,12 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 * @param isFolder the is folder
 	 * @param isRoot the is root
 	 */
-	public ItemDTO(ItemDTO parent, String id, String name, ItemType type, String path, String owner, boolean isFolder, boolean isRoot) {
+	public Item(Item parent, String id, String name, ItemType type, String path, String owner, boolean isFolder, boolean isRoot) {
 		this(id, name, isFolder);
 		this.parent = parent;
 		this.type = type;
 		this.path = path;
-		this.children = new ArrayList<ItemDTO>();
+		this.children = new ArrayList<Item>();
 		this.owner = owner;
 		this.isRoot = isRoot;
 	}
@@ -102,7 +102,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 *
 	 * @param children the new children
 	 */
-	public void setChildren(ArrayList<ItemDTO> children) {
+	public void setChildren(ArrayList<Item> children) {
 
 		this.children = children;
 	}
@@ -177,7 +177,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 *
 	 * @return the item parent.
 	 */
-	public ItemDTO getParent() {
+	public Item getParent() {
 		return parent;
 	}
 
@@ -213,7 +213,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 *
 	 * @return the children.
 	 */
-	public ArrayList<ItemDTO> getChildren() {
+	public ArrayList<Item> getChildren() {
 		return children;
 	}
 
@@ -252,7 +252,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 *            the index
 	 * @return the child at the specific position.
 	 */
-	public ItemDTO getChild(int index) {
+	public Item getChild(int index) {
 		return children.get(index);
 	}
 
@@ -262,7 +262,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 * @param child
 	 *            the child to add.
 	 */
-	public void addChild(ItemDTO child) {
+	public void addChild(Item child) {
 		children.add(child);
 	}
 
@@ -272,7 +272,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 * @param child
 	 *            the child
 	 */
-	public void removeChild(ItemDTO child) {
+	public void removeChild(Item child) {
 		children.remove(child);
 	}
 
@@ -328,7 +328,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 		if (getClass() != obj.getClass()) {
 			return false;
 		}
-		ItemDTO other = (ItemDTO) obj;
+		Item other = (Item) obj;
 		if (id == null) {
 			if (other.id != null) {
 				return false;
@@ -375,7 +375,7 @@ public class ItemDTO implements IsSerializable, ItemInterface{
 	 * @param parent
 	 *            the new parent
 	 */
-	public void setParent(ItemDTO parent) {
+	public void setParent(Item parent) {
 		this.parent = parent;
 	}
 	/* (non-Javadoc)

src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/ItemType.java

@@ -20,9 +20,18 @@ public enum ItemType {
 	EXTERNAL_PDF_FILE,
 	EXTERNAL_URL,
 	QUERY,
+	CALENDAR,
 	REPORT_TEMPLATE,
 	REPORT,
+	CSV,
+	MOVIE,
+	ZIP,
+	RAR,
+	HTML,
+	TEXT_PLAIN,
 	DOCUMENT,
+	PRESENTATION,
+	SPREADSHEET,
 	METADATA,
 	PDF_DOCUMENT,
 	IMAGE_DOCUMENT,

src/main/java/org/gcube/portlets/widgets/wsexplorer/shared/SearchedFolder.java

@@ -15,7 +15,7 @@ import com.google.gwt.user.client.rpc.IsSerializable;
 public class SearchedFolder implements IsSerializable{
 
 
-	private ItemDTO folder;
+	private Item folder;
 	private int clientStartIndex = 0;
 	private int limit;
 	private int serverEndIndex = 0;
@@ -35,7 +35,7 @@ public class SearchedFolder implements IsSerializable{
 	 * @param serverEndIndex
 	 * @param isServerSearchFinished
 	 */
-	public SearchedFolder(ItemDTO folder, int clientStartIndex, int limit, int serverEndIndex, boolean isServerSearchFinished) {
+	public SearchedFolder(Item folder, int clientStartIndex, int limit, int serverEndIndex, boolean isServerSearchFinished) {
 
 		super();
 		this.folder = folder;
@@ -50,7 +50,7 @@ public class SearchedFolder implements IsSerializable{
 	/**
 	 * @return the folder
 	 */
-	public ItemDTO getFolder() {
+	public Item getFolder() {
 
 		return folder;
 	}
@@ -100,7 +100,7 @@ public class SearchedFolder implements IsSerializable{
 	/**
 	 * @param folder the folder to set
 	 */
-	public void setFolder(ItemDTO folder) {
+	public void setFolder(Item folder) {
 
 		this.folder = folder;
 	}