.classpath

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" output="target/workspace-explorer-app-1.3.1/WEB-INF/classes" path="src/main/java">
+	<classpathentry kind="src" output="target/workspace-explorer-app-1.3.2-SNAPSHOT/WEB-INF/classes" path="src/main/java">
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry excluding="**" kind="src" output="target/workspace-explorer-app-1.3.1/WEB-INF/classes" path="src/main/resources">
+	<classpathentry excluding="**" kind="src" output="target/workspace-explorer-app-1.3.2-SNAPSHOT/WEB-INF/classes" path="src/main/resources">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
@@ -35,5 +35,5 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="output" path="target/workspace-explorer-app-1.3.1/WEB-INF/classes"/>
+	<classpathentry kind="output" path="target/workspace-explorer-app-1.3.2-SNAPSHOT/WEB-INF/classes"/>
 </classpath>

.settings/com.gwtplugins.gdt.eclipse.core.prefs

@@ -1,6 +1,6 @@
 eclipse.preferences.version=1
 jarsExcludedFromWebInfLib=
-lastWarOutDir=/home/francesco-mangiacrapa/git/workspace-explorer-app/target/workspace-explorer-app-1.3.1
+lastWarOutDir=/home/francescomangiacrapa/git/workspace-explorer-app/target/workspace-explorer-app-1.3.2-SNAPSHOT
 launchConfigExternalUrlPrefix=
 warSrcDir=src/main/webapp
 warSrcDirIsOutput=false

.settings/org.eclipse.wst.common.component

@@ -1,10 +1,40 @@
 <?xml version="1.0" encoding="UTF-8"?><project-modules id="moduleCoreId" project-version="1.5.0">
-    <wb-module deploy-name="workspace-explorer-app-1.3.1">
+                
+    
+    
+    <wb-module deploy-name="workspace-explorer-app-1.3.2-SNAPSHOT">
+                                
+        
+        
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
+                                
+        
+        
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/resources"/>
+                                
+        
+        
         <wb-resource deploy-path="/" source-path="/target/m2e-wtp/web-resources"/>
+                                
+        
+        
         <wb-resource deploy-path="/" source-path="/src/main/webapp" tag="defaultRootSource"/>
+        <dependent-module archiveName="storagehub-client-wrapper-1.1.0.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/storagehub-client-wrapper/storagehub-client-wrapper">
+            <dependency-type>uses</dependency-type>
+        </dependent-module>
+                                
+        
+        
         <property name="context-root" value="workspace-explorer-app"/>
+                                
+        
+        
         <property name="java-output-path" value="/workspace-explorer-app/target/workspace-explorer-app-0.0.1-SNAPSHOT/WEB-INF/classes"/>
+                            
+    
+    
     </wb-module>
+            
+
+
 </project-modules>

CHANGELOG.md

@@ -4,6 +4,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v1.4.0-SNAPSHOT] - 2021-12-03
+
+[#19786] Integrated items of type "URL"
+
 ## [v1.3.1] - 2020-09-25
 
 [#19317] Just to include the storagehub-client-wrapper at 1.0.0 version

pom.xml

@@ -12,7 +12,7 @@
 
 	<groupId>org.gcube.portlets.user</groupId>
 	<artifactId>workspace-explorer-app</artifactId>
-	<version>1.3.1</version>
+	<version>1.4.0-SNAPSHOT</version>
 	<packaging>war</packaging>
 
 	<description>

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/client/WorkspaceResourcesExplorerPanel.java

@@ -30,7 +30,6 @@ import org.gcube.portlets.user.workspaceexplorerapp.client.view.WorkspaceExplore
 import org.gcube.portlets.user.workspaceexplorerapp.shared.Item;
 import org.gcube.portlets.user.workspaceexplorerapp.shared.ItemType;
 
-import com.github.gwtbootstrap.client.ui.constants.AlertType;
 import com.google.gwt.core.shared.GWT;
 import com.google.gwt.event.shared.HandlerManager;
 import com.google.gwt.http.client.RequestBuilder;
@@ -46,49 +45,51 @@ import gwt.material.design.client.ui.MaterialToast;
 /**
  * The Class WorkspaceResourcesExplorerPanel.
  *
- * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * @author Francesco Mangiacrapa at ISTI-CNR francesco.mangiacrapa@isti.cnr.it
- * Dec 3, 2015
+ * 
+ * Dec 3, 2021
  */
-public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWorskpaceExplorerSelectNotificationListener{
+public class WorkspaceResourcesExplorerPanel extends DockPanel
+		implements HasWorskpaceExplorerSelectNotificationListener {
 
 	public HandlerManager eventBus;
 	private Breadcrumbs breadcrumbs;
 	private boolean isSelect = false;
 	private String captionTxt;
-//	private WorkspaceExplorerController controller;
 	private List<WorskpaceExplorerSelectNotificationListener> listeners = new ArrayList<WorskpaceExplorerSelectNotificationListener>();
 	private VerticalPanel mainVP = new VerticalPanel();
-//	private HorizontalPanel footerHP = new HorizontalPanel();
 	private WorkspaceExplorer wsExplorer;
 	private ScrollPanel centerScrollable = new ScrollPanel();
-//	private ScrollPanel southPanel = new ScrollPanel();
 	private String folderName;
 	private Item baseFolder;
-	public static final DisplayField[] displayFields = new DisplayField[]{DisplayField.ICON, DisplayField.NAME, DisplayField.OWNER, DisplayField.CREATION_DATE};
+	public static final DisplayField[] displayFields = new DisplayField[] { DisplayField.ICON, DisplayField.NAME,
+			DisplayField.OWNER, DisplayField.CREATION_DATE };
 
 	/**
 	 * Instantiates a new workspace folder explorer select panel.
 	 *
-	 * @param eventBus the event bus
+	 * @param eventBus   the event bus
-	 * @param folderId the folder id like root folder to explore
+	 * @param folderId   the folder id like root folder to explore
 	 * @param folderName the folder name
 	 * @throws Exception the exception
 	 */
-	public WorkspaceResourcesExplorerPanel(HandlerManager eventBus, String folderId, String folderName) throws Exception {
+	public WorkspaceResourcesExplorerPanel(HandlerManager eventBus, String folderId, String folderName)
+			throws Exception {
 		initExplorer(eventBus, folderId, folderName, ItemType.values(), ItemType.values());
 	}
 
 	/**
 	 * Inits the explorer.
 	 *
-	 * @param eventBus the event bus
+	 * @param eventBus        the event bus
-	 * @param folderId the folder id
+	 * @param folderId        the folder id
-	 * @param folderName the folder name
+	 * @param folderName      the folder name
 	 * @param selectableTypes the selectable types
-	 * @param showableTypes the showable types
+	 * @param showableTypes   the showable types
 	 * @throws Exception the exception
 	 */
-	private void initExplorer(HandlerManager eventBus, String folderId, String folderName, ItemType[] selectableTypes, ItemType[] showableTypes) throws Exception{
+	private void initExplorer(HandlerManager eventBus, String folderId, String folderName, ItemType[] selectableTypes,
+			ItemType[] showableTypes) throws Exception {
 		this.folderName = folderName;
 		this.eventBus = eventBus;
 		this.breadcrumbs = new Breadcrumbs(eventBus);
@@ -98,7 +99,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 		Item item = new Item(folderId, folderName, true);
 		this.baseFolder = item;
 		wsExplorer.setBaseFolder(item);
-		if(folderId!=null && !folderId.isEmpty())
+		if (folderId != null && !folderId.isEmpty())
 			wsExplorer.loadFolder(item);
 		initPanel("");
 	}
@@ -106,26 +107,27 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	/**
 	 * Instantiates a new workspace explorer select panel.
 	 *
-	 * @param folderId the folder id
+	 * @param eventBus the event bus
+	 * @param folderId        the folder id
 	 * @param showOnlyFolders the show only folders
 	 * @throws Exception the exception
 	 */
-	public WorkspaceResourcesExplorerPanel(HandlerManager eventBus, String folderId, boolean showOnlyFolders) throws Exception {
+	public WorkspaceResourcesExplorerPanel(HandlerManager eventBus, String folderId, boolean showOnlyFolders)
+			throws Exception {
 
-		if(showOnlyFolders){
+		if (showOnlyFolders) {
 			ItemType[] itemsType = new ItemType[1];
 			itemsType[0] = ItemType.FOLDER;
 			initExplorer(eventBus, folderId, "", itemsType, itemsType);
-		}else{
+		} else {
 			initExplorer(eventBus, folderId, "", ItemType.values(), ItemType.values());
 		}
 	}
 
-
 	/**
 	 * Bind events.
 	 */
-	private void bindEvents(){
+	private void bindEvents() {
 
 		eventBus.addHandler(ClickItemEvent.TYPE, new ClickItemEventHandler() {
 
@@ -153,9 +155,9 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 
 				GWT.log("LoadFolderEvent fired");
 
-				Item item = loadFolderEvent.getTargetFolder()==null?baseFolder:loadFolderEvent.getTargetFolder();
+				Item item = loadFolderEvent.getTargetFolder() == null ? baseFolder : loadFolderEvent.getTargetFolder();
 
-				if(item.isFolder()){
+				if (item.isFolder()) {
 					try {
 						wsExplorer.loadFolder(item);
 						loadParentBreadcrumbByItemId(item.getId(), true);
@@ -171,7 +173,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 
 			@Override
 			public void onBreadcrumbClick(BreadcrumbClickEvent breadcrumbClickEvent) {
-				if(breadcrumbClickEvent.getTargetItem()!=null)
+				if (breadcrumbClickEvent.getTargetItem() != null)
 					eventBus.fireEvent(new LoadFolderEvent(breadcrumbClickEvent.getTargetItem()));
 			}
 		});
@@ -182,22 +184,19 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 			public void onOrderDataBy(OrderDataByEvent orderDataByEvent) {
 
 				wsExplorer.getItTables().sortDataBy(orderDataByEvent.getLabel());
-
-				/*ArrayList<Item> items = ItemComparatorUtility.sortItems(DisplayField.NAME, true, wsExplorer.getItTables().getDataProvider().getList());
-				wsExplorer.updateExplorer(items);*/
 			}
 		});
 
-
 		eventBus.addHandler(RightClickItemEvent.TYPE, new RightClickItemEventHandler() {
 
 			@Override
 			public void onClick(RightClickItemEvent rightClickItemEvent) {
 
-				if(rightClickItemEvent.getItem()!=null && rightClickItemEvent.getItem().getId()!=null){
+				if (rightClickItemEvent.getItem() != null && rightClickItemEvent.getItem().getId() != null) {
 
 					PopupContextMenu popupCM = new PopupContextMenu(true, eventBus, rightClickItemEvent.getItem());
-					popupCM.showPopup(rightClickItemEvent.getXPos(), Window.getScrollTop()+rightClickItemEvent.getYPos());
+					popupCM.showPopup(rightClickItemEvent.getXPos(),
+							Window.getScrollTop() + rightClickItemEvent.getYPos());
 				}
 			}
 		});
@@ -208,24 +207,27 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 			public void onDownloadItem(DownloadItemEvent downloadItemEvent) {
 				GWT.log("Fired event DownloadItemEvent");
 				String itemIds = "";
-				if(downloadItemEvent.getItem()!=null)
+				if (downloadItemEvent.getItem() != null)
-					itemIds = downloadItemEvent.getItem().getId()+WorkspaceExplorerAppConstants.IDS_SEPARATOR;
+					itemIds = downloadItemEvent.getItem().getId() + WorkspaceExplorerAppConstants.IDS_SEPARATOR;
-				else{
+				else {
 
 					List<Item> lstItems = toList(wsExplorer.getItemsSelected());
 					for (Item item : lstItems) {
-						itemIds +=item.getId()+WorkspaceExplorerAppConstants.IDS_SEPARATOR;
+						itemIds += item.getId() + WorkspaceExplorerAppConstants.IDS_SEPARATOR;
 					}
 				}
-				GWT.log("itemIds: "+itemIds);
+				GWT.log("itemIds: " + itemIds);
-				if(!itemIds.isEmpty()){
+				if (!itemIds.isEmpty()) {
 //					MaterialToast.fireToast("Download...");
 
 					switch (downloadItemEvent.getType()) {
 					case DOWNLOAD:
 						MaterialToast.fireToast("Download...");
 						try {
-							new RequestBuilderWorkspaceValidateItem(RequestBuilder.GET,WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE, WorkspaceExplorerAppConstants.IDS+"="+itemIds, "_self", downloadHandlerCallback);
+							new RequestBuilderWorkspaceValidateItem(RequestBuilder.GET,
+									WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE,
+									WorkspaceExplorerAppConstants.IDS + "=" + itemIds, "_self",
+									downloadHandlerCallback);
 						} catch (Exception e) {
 							Window.alert("Sorry, an error occurred while contacting server, try again");
 						}
@@ -234,8 +236,45 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 //						break;
 					case OPEN:
 						MaterialToast.fireToast("Showing...");
+
+						if (downloadItemEvent.getItem().getType().equals(ItemType.URL_DOCUMENT)) {
+
+							final NewBrowserWindow newBrowserWindow = NewBrowserWindow.open("", "_blank", "");
+
+							final String theItemIds = itemIds;
+
+							WorkspaceExplorerAppConstants.workspaceNavigatorService
+									.getUrlById(downloadItemEvent.getItem().getId(), new AsyncCallback<String>() {
+
+										@Override
+										public void onSuccess(String result) {
+											newBrowserWindow.setUrl(result);
+
+										}
+
+										@Override
+										public void onFailure(Throwable caught) {
+											try {
+												new RequestBuilderWorkspaceValidateItem(RequestBuilder.GET,
+														WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE,
+														WorkspaceExplorerAppConstants.IDS + "=" + theItemIds
+																+ "&viewContent=true",
+														"_blank", downloadHandlerCallback);
+											} catch (Exception e) {
+												Window.alert(
+														"Sorry, an error occurred while contacting server, try again");
+											}
+										}
+									});
+
+							return;
+						}
+
 						try {
-							new RequestBuilderWorkspaceValidateItem(RequestBuilder.GET, WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE, WorkspaceExplorerAppConstants.IDS+"="+itemIds+"&viewContent=true", "_blank", downloadHandlerCallback);
+							new RequestBuilderWorkspaceValidateItem(RequestBuilder.GET,
+									WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE,
+									WorkspaceExplorerAppConstants.IDS + "=" + itemIds + "&viewContent=true", "_blank",
+									downloadHandlerCallback);
 
 						} catch (Exception e) {
 							Window.alert("Sorry, an error occurred while contacting server, try again");
@@ -249,65 +288,62 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 		});
 	}
 
-
 	/**
 	 * To list.
 	 *
 	 * @param items the items
 	 * @return the list
 	 */
-	private List<Item> toList(Set<Item> items){
+	private List<Item> toList(Set<Item> items) {
-		if(items!=null && items.size()>0){
+		if (items != null && items.size() > 0) {
-			List<Item> lstItems = new ArrayList<Item> (items.size());
+			List<Item> lstItems = new ArrayList<Item>(items.size());
 			lstItems.addAll(items);
 			return lstItems;
 		}
 		return null;
 	}
 
-
 	/**
 	 * Load parent breadcrumb by item id.
 	 *
-	 * @param itemIdentifier the item identifier
+	 * @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, boolean includeItemAsParent) {
 
-		GWT.log("Reload Parent Breadcrumb: [Item id: "+itemIdentifier+"]");
+		GWT.log("Reload Parent Breadcrumb: [Item id: " + itemIdentifier + "]");
 
-		WorkspaceExplorerAppConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifierToParentLimit(itemIdentifier, baseFolder.getId(), includeItemAsParent,  new AsyncCallback<List<Item>>() {
+		WorkspaceExplorerAppConstants.workspaceNavigatorService.getBreadcrumbsByItemIdentifierToParentLimit(
+				itemIdentifier, baseFolder.getId(), includeItemAsParent, new AsyncCallback<List<Item>>() {
 
-			@Override
+					@Override
-			public void onFailure(Throwable caught) {
+					public void onFailure(Throwable caught) {
-				GWT.log(caught.getMessage());
+						GWT.log(caught.getMessage());
-				Item goToBaseFolder = null;
+						Item goToBaseFolder = null;
-				//I'm adding go to folder only if is a sub-folder of baseFolder
+						// I'm adding go to folder only if is a sub-folder of baseFolder
-				if(itemIdentifier!=baseFolder.getId())
+						if (itemIdentifier != baseFolder.getId())
-					goToBaseFolder = baseFolder;
+							goToBaseFolder = baseFolder;
 
-				//wsExplorer.setAlert(caught.getMessage(), AlertType.ERROR, goToBaseFolder);
+						// wsExplorer.setAlert(caught.getMessage(), AlertType.ERROR, goToBaseFolder);
-			}
+					}
 
-			@Override
+					@Override
-			public void onSuccess(List<Item> result) {
+					public void onSuccess(List<Item> result) {
-				if(result!=null){
+						if (result != null) {
-					breadcrumbs.setPath(result);
+							breadcrumbs.setPath(result);
-//					clearMoreInfo();
+						}
-				}
+					}
-			}
+				});
-		});
 	}
 
 	/**
 	 * Refresh root folder view.
 	 */
-	public void refreshRootFolderView(){
+	public void refreshRootFolderView() {
-		//Item item = new Item(baseFolder.getId(), folderName, true);
+		// Item item = new Item(baseFolder.getId(), folderName, true);
 		eventBus.fireEvent(new LoadFolderEvent(baseFolder));
 	}
 
-
 	/**
 	 * Inits the panel.
 	 *
@@ -319,14 +355,14 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 		this.getElement().setAttribute("id", "WorkspaceExplorerContainer");
 		this.getElement().addClassName("workspace-explorer-container");
 
-		if(this.captionTxt!=null && !this.captionTxt.isEmpty())
+		if (this.captionTxt != null && !this.captionTxt.isEmpty())
 			setTitle(this.captionTxt);
 
-	    setWidth("100%");
+		setWidth("100%");
-	    add(breadcrumbs, DockPanel.NORTH);
+		add(breadcrumbs, DockPanel.NORTH);
 		mainVP.add(wsExplorer.getPanel());
-	    centerScrollable.add(mainVP);
+		centerScrollable.add(mainVP);
-	    add(centerScrollable, DockPanel.CENTER);
+		add(centerScrollable, DockPanel.CENTER);
 	}
 
 	/**
@@ -334,7 +370,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	 *
 	 * @param selected the selected
 	 */
-	private void notifySelectedItem(Item selected){
+	private void notifySelectedItem(Item selected) {
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onSelectedItem(selected);
@@ -344,18 +380,17 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	/**
 	 * Notify aborted.
 	 */
-	private void notifyAborted(){
+	private void notifyAborted() {
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onAborted();
 		}
 	}
 
-
 	/**
 	 * Notify not valid selection.
 	 */
-	private void notifyNotValidSelection(){
+	private void notifyNotValidSelection() {
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onNotValidSelection();
@@ -368,7 +403,7 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	 * @param t the t
 	 */
 	@SuppressWarnings("unused")
-	private void notifyFailed(Throwable t){
+	private void notifyFailed(Throwable t) {
 
 		for (WorskpaceExplorerSelectNotificationListener worskpaceExplorerNotificationListener : listeners) {
 			worskpaceExplorerNotificationListener.onFailed(t);
@@ -393,22 +428,44 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 		return isSelect;
 	}
 
-	/* (non-Javadoc)
+	/**
-	 * @see org.gcube.portlets.widgets.wsexplorer.client.notification.WorskpaceExplorerNotification.HasWorskpaceExplorerNotificationListener#addWorkspaceExplorerNotificationListener(org.gcube.portlets.widgets.wsexplorer.client.notification.WorskpaceExplorerNotification.WorskpaceExplorerNotificationListener)
+	 * Adds the workspace explorer select notification listener.
+	 *
+	 * @param handler the handler
+	 */
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.gcube.portlets.widgets.wsexplorer.client.notification.
+	 * WorskpaceExplorerNotification.HasWorskpaceExplorerNotificationListener#
+	 * addWorkspaceExplorerNotificationListener(org.gcube.portlets.widgets.
+	 * wsexplorer.client.notification.WorskpaceExplorerNotification.
+	 * WorskpaceExplorerNotificationListener)
 	 */
 	@Override
 	public void addWorkspaceExplorerSelectNotificationListener(WorskpaceExplorerSelectNotificationListener handler) {
-		if(handler!=null)
+		if (handler != null)
 			listeners.add(handler);
 	}
 
-	/* (non-Javadoc)
+	/**
-	 * @see org.gcube.portlets.widgets.wsexplorer.client.notification.WorskpaceExplorerNotification.HasWorskpaceExplorerNotificationListener#removeWorkspaceExplorerNotificationListener(org.gcube.portlets.widgets.wsexplorer.client.notification.WorskpaceExplorerNotification.WorskpaceExplorerNotificationListener)
+	 * Removes the workspace explorer select notification listener.
+	 *
+	 * @param handler the handler
+	 */
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.gcube.portlets.widgets.wsexplorer.client.notification.
+	 * WorskpaceExplorerNotification.HasWorskpaceExplorerNotificationListener#
+	 * removeWorkspaceExplorerNotificationListener(org.gcube.portlets.widgets.
+	 * wsexplorer.client.notification.WorskpaceExplorerNotification.
+	 * WorskpaceExplorerNotificationListener)
 	 */
 	@Override
 	public void removeWorkspaceExplorerSelectNotificationListener(WorskpaceExplorerSelectNotificationListener handler) {
-		if(handler!=null){
+		if (handler != null) {
-			if(listeners.contains(handler))
+			if (listeners.contains(handler))
 				listeners.remove(handler);
 		}
 	}
@@ -419,18 +476,19 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 	 * @param item the item
 	 * @return true, if successful
 	 */
-	public boolean itemIsSelectable(Item item){
+	public boolean itemIsSelectable(Item item) {
-		GWT.log("Selectable type: "+wsExplorer.getSelectableTypes());
+		GWT.log("Selectable type: " + wsExplorer.getSelectableTypes());
-		GWT.log("item: "+item);
+		GWT.log("item: " + item);
-		if (item!=null){
+		if (item != null) {
 			boolean selectable = wsExplorer.getSelectableTypes().contains(item.getType());
-			return selectable?true:false;
+			return selectable ? true : false;
 		}
 		return false;
 	}
 
-
 	/**
+	 * Gets the ws explorer.
+	 *
 	 * @return the wsExplorer
 	 */
 	public WorkspaceExplorer getWsExplorer() {
@@ -456,11 +514,12 @@ public class WorkspaceResourcesExplorerPanel extends DockPanel implements HasWor
 
 		@Override
 		public void onSuccess(WindowOpenParameter windowOpenParam) {
-			String params = "?"+windowOpenParam.getParameters();
+			String params = "?" + windowOpenParam.getParameters();
-			if(params.length()>1)
+			if (params.length() > 1)
-				params+="&";
+				params += "&";
-			params+=WorkspaceExplorerAppConstants.REDIRECTONERROR+"="+windowOpenParam.isRedirectOnError();
+			params += WorkspaceExplorerAppConstants.REDIRECTONERROR + "=" + windowOpenParam.isRedirectOnError();
-			windowOpenParam.getBrowserWindow().setUrl(WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE+params);
+			windowOpenParam.getBrowserWindow()
+					.setUrl(WorkspaceExplorerAppConstants.DOWNLOAD_WORKSPACE_SERVICE + params);
 		}
 	};
 }

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/client/event/DownloadItemEvent.java

@@ -1,29 +1,27 @@
 package org.gcube.portlets.user.workspaceexplorerapp.client.event;
 
 import org.gcube.portlets.user.workspaceexplorerapp.client.download.DownloadType;
-import org.gcube.portlets.user.workspaceexplorerapp.shared.ItemInterface;
+import org.gcube.portlets.user.workspaceexplorerapp.shared.Item;
 
 import com.google.gwt.event.shared.GwtEvent;
 
-
 /**
  * The Class ClickItemEvent.
  *
- * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it Jul 6, 2015
- * Jul 6, 2015
  */
 public class DownloadItemEvent extends GwtEvent<DownloadItemEventHandler> {
 	public static Type<DownloadItemEventHandler> TYPE = new Type<DownloadItemEventHandler>();
-	private ItemInterface item;
+	private Item item;
 	private DownloadType type;
 
 	/**
 	 * Instantiates a new click item event.
 	 *
 	 * @param itemDownload the item download
-	 * @param type the type
+	 * @param type         the type
 	 */
-	public DownloadItemEvent(ItemInterface itemDownload, DownloadType type) {
+	public DownloadItemEvent(Item itemDownload, DownloadType type) {
 		this.item = itemDownload;
 		this.type = type;
 	}
@@ -36,7 +34,9 @@ public class DownloadItemEvent extends GwtEvent<DownloadItemEventHandler> {
 		return type;
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.google.gwt.event.shared.GwtEvent#getAssociatedType()
 	 */
 	@Override
@@ -44,8 +44,12 @@ public class DownloadItemEvent extends GwtEvent<DownloadItemEventHandler> {
 		return TYPE;
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.google.gwt.event.shared.GwtEvent#dispatch(com.google.gwt.event.shared.EventHandler)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.google.gwt.event.shared.GwtEvent#dispatch(com.google.gwt.event.shared.
+	 * EventHandler)
 	 */
 	@Override
 	protected void dispatch(DownloadItemEventHandler handler) {
@@ -57,7 +61,7 @@ public class DownloadItemEvent extends GwtEvent<DownloadItemEventHandler> {
 	 * 
 	 * @return the item
 	 */
-	public ItemInterface getItem() {
+	public Item getItem() {
 		return item;
 	}
 }

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/client/grid/MenuMoreOptionsOnItem.java

@@ -5,7 +5,7 @@ package org.gcube.portlets.user.workspaceexplorerapp.client.grid;
 
 import org.gcube.portlets.user.workspaceexplorerapp.client.download.DownloadType;
 import org.gcube.portlets.user.workspaceexplorerapp.client.event.DownloadItemEvent;
-import org.gcube.portlets.user.workspaceexplorerapp.shared.ItemInterface;
+import org.gcube.portlets.user.workspaceexplorerapp.shared.Item;
 
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.event.dom.client.ClickEvent;
@@ -42,7 +42,7 @@ public class MenuMoreOptionsOnItem extends Composite {
 
 	private HandlerManager eventBus;
 
-	private ItemInterface itemToDownload;
+	private Item itemToDownload;
 
 	private Command commandOnClick;
 
@@ -86,7 +86,7 @@ public class MenuMoreOptionsOnItem extends Composite {
 	 * @param itemToDownload the item to download
 	 * @param commandOnClick the command on click
 	 */
-	public void initOnItem(ItemInterface itemToDownload, Command commandOnClick){
+	public void initOnItem(Item itemToDownload, Command commandOnClick){
 		this.itemToDownload = itemToDownload;
 		this.commandOnClick = commandOnClick;
 	}

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/client/rpc/WorkspaceExplorerAppService.java

@@ -21,11 +21,18 @@ public interface WorkspaceExplorerAppService extends RemoteService {
 	/**
 	 * Gets the folder.
 	 *
-	 * @param folder the folder @param showableTypes the showable types @param
+	 * @param folder           the folder @param showableTypes the showable
-	 *               purgeEmpyFolders the purge empy folders @param filterCriteria
+	 *                         types @param purgeEmpyFolders the purge empy
-	 *               the filter criteria @return the folder @throws
+	 *                         folders @param filterCriteria the filter
-	 *               WorkspaceNavigatorServiceException the workspace navigator
+	 *                         criteria @return the folder @throws
-	 *               service exception @throws
+	 *                         WorkspaceNavigatorServiceException the workspace
+	 *                         navigator service exception @throws
+	 * @param showableTypes    the showable types
+	 * @param purgeEmpyFolders the purge empy folders
+	 * @param filterCriteria   the filter criteria
+	 * @return the folder
+	 * @throws WorkspaceNavigatorServiceException the workspace navigator service
+	 *                                            exception
 	 */
 	Item getFolder(Item folder, List<ItemType> showableTypes, boolean purgeEmpyFolders, FilterCriteria filterCriteria)
 			throws WorkspaceNavigatorServiceException;
@@ -71,12 +78,12 @@ public interface WorkspaceExplorerAppService extends RemoteService {
 	/**
 	 * Gets the breadcrumbs by item identifier.
 	 *
-	 * @param itemIdentifier      the item identifier
+	 * @param itemId the item id
-	 * @param includeItemAsParent the include item as parent
 	 * @return the breadcrumbs by item identifier
 	 * @throws Exception the exception
 	 */
-	//List<Item> getBreadcrumbsByItemIdentifier(String itemIdentifier, boolean includeItemAsParent) throws Exception;
+	// List<Item> getBreadcrumbsByItemIdentifier(String itemIdentifier, boolean
+	// includeItemAsParent) throws Exception;
 
 	/**
 	 * Gets the public link for item id.
@@ -96,4 +103,13 @@ public interface WorkspaceExplorerAppService extends RemoteService {
 	 */
 	String getFolderIdFromEncrypted(String encryptedFolderId) throws Exception;
 
+	/**
+	 * Gets the url by id.
+	 *
+	 * @param itemId the item id
+	 * @return the url by id
+	 * @throws Exception the exception
+	 */
+	String getUrlById(String itemId) throws Exception;
+
 }

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/client/rpc/WorkspaceExplorerAppServiceAsync.java

@@ -64,12 +64,14 @@ public interface WorkspaceExplorerAppServiceAsync {
 	/**
 	 * Gets the breadcrumbs by item identifier.
 	 *
-	 * @param itemIdentifier      the item identifier
+	 * @param showableTypes    the showable types
-	 * @param includeItemAsParent the include item as parent
+	 * @param purgeEmpyFolders the purge empy folders
-	 * @param asyncCallback       the async callback
+	 * @param filterCriteria   the filter criteria
+	 * @param asyncCallback    the async callback
 	 * @return the breadcrumbs by item identifier
 	 */
-	//public void getBreadcrumbsByItemIdentifier(String itemIdentifier, boolean includeItemAsParent, AsyncCallback<List<Item>> asyncCallback);
+	// public void getBreadcrumbsByItemIdentifier(String itemIdentifier, boolean
+	// includeItemAsParent, AsyncCallback<List<Item>> asyncCallback);
 
 	/**
 	 * Gets the my special folder.
@@ -95,4 +97,13 @@ public interface WorkspaceExplorerAppServiceAsync {
 	void getBreadcrumbsByItemIdentifierToParentLimit(String itemIdentifier, String parentLimit,
 			boolean includeItemAsParent, AsyncCallback<List<Item>> callback);
 
+	/**
+	 * Gets the url by id.
+	 *
+	 * @param itemId   the item id
+	 * @param callback the callback
+	 * @return the url by id
+	 */
+	void getUrlById(String itemId, AsyncCallback<String> callback);
+
 }

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/client/view/PopupContextMenu.java

@@ -4,7 +4,7 @@
 package org.gcube.portlets.user.workspaceexplorerapp.client.view;
 
 import org.gcube.portlets.user.workspaceexplorerapp.client.grid.MenuMoreOptionsOnItem;
-import org.gcube.portlets.user.workspaceexplorerapp.shared.ItemInterface;
+import org.gcube.portlets.user.workspaceexplorerapp.shared.Item;
 
 import com.google.gwt.core.shared.GWT;
 import com.google.gwt.event.shared.HandlerManager;
@@ -30,7 +30,7 @@ public class PopupContextMenu extends PopupPanel{
 	 * @param eventBus the event bus
 	 * @param itemToDownload the item to download
 	 */
-	public PopupContextMenu(boolean autohide, HandlerManager eventBus, ItemInterface itemToDownload) {
+	public PopupContextMenu(boolean autohide, HandlerManager eventBus, Item itemToDownload) {
 		super(autohide);
 		GWT.log("PopupContextMenu opened");
 		menuOpts = new MenuMoreOptionsOnItem(eventBus);

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/WorkspaceExplorerAppServiceImpl.java

@@ -15,6 +15,8 @@ import org.gcube.common.storagehubwrapper.shared.tohl.WorkspaceFolder;
 import org.gcube.common.storagehubwrapper.shared.tohl.WorkspaceItem;
 import org.gcube.common.storagehubwrapper.shared.tohl.WorkspaceItemType;
 import org.gcube.common.storagehubwrapper.shared.tohl.items.FileItem;
+import org.gcube.common.storagehubwrapper.shared.tohl.items.URLFileItem;
+import org.gcube.common.storagehubwrapper.shared.tohl.items.URLItem;
 import org.gcube.portlets.user.workspaceexplorerapp.client.WorkspaceExplorerAppConstants;
 import org.gcube.portlets.user.workspaceexplorerapp.client.rpc.WorkspaceExplorerAppService;
 import org.gcube.portlets.user.workspaceexplorerapp.server.workspace.ItemBuilder;
@@ -462,4 +464,33 @@ public class WorkspaceExplorerAppServiceImpl extends RemoteServiceServlet implem
 		}
 	}
 	
+	@Override
+	public String getUrlById(String itemId) throws Exception {
+
+		try {
+
+			if (itemId == null)
+				throw new Exception("Workspace itemId is null");
+
+			logger.debug("get URL by id: " + itemId);
+			Workspace workspace = getWorkspace();
+			WorkspaceItem wsItem = workspace.getItemForExplorer(itemId, false, false, false);
+			// workspace
+
+			if (wsItem instanceof org.gcube.common.storagehubwrapper.shared.tohl.impl.URLFileItem) {
+				URLFileItem fileItem = (URLFileItem) wsItem;
+				return WsInstanceUtil.getUrl(workspace, fileItem);
+			} else if (wsItem instanceof URLItem) {
+				URLItem urlFile = (URLItem) wsItem;
+				return urlFile.getValue().toString();
+			} else {
+				throw new Exception("The itemId " + itemId + " is not a URLFileItem or a URLItem");
+			}
+
+		} catch (Exception e) {
+			logger.error("Error occurred in getUrlById: ", e);
+			throw new Exception(e.getMessage());
+		}
+	}
+
 }

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/workspace/ItemBuilder.java

@@ -223,6 +223,8 @@ public class ItemBuilder {
 
 			else
 				return ItemType.UNKNOWN_TYPE;
+		case URL_ITEM:
+			return ItemType.URL_DOCUMENT;
 
 		default:
 			return null;

src/main/java/org/gcube/portlets/user/workspaceexplorerapp/server/workspace/WsInstanceUtil.java

@@ -3,18 +3,24 @@
  */
 package org.gcube.portlets.user.workspaceexplorerapp.server.workspace;
 
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+
 import javax.servlet.http.HttpSession;
 
 import org.gcube.common.storagehubwrapper.server.StorageHubWrapper;
+import org.gcube.common.storagehubwrapper.server.tohl.Workspace;
+import org.gcube.common.storagehubwrapper.shared.tohl.exceptions.InternalErrorException;
+import org.gcube.common.storagehubwrapper.shared.tohl.items.URLFileItem;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-
 /**
  * The Class WsUtil.
  *
- * @author Francesco Mangiacrapa at ISTI-CNR Pisa (Italy)
+ * @author Francesco Mangiacrapa at ISTI-CNR Pisa (Italy) Apr 9, 2020
- * Apr 9, 2020
  */
 public class WsInstanceUtil {
 
@@ -36,7 +42,7 @@ public class WsInstanceUtil {
 			String scope = getScope(httpSession);
 			String applicationToken = getApplicationToken(httpSession);
 
-			if(applicationToken==null || applicationToken.isEmpty()) {
+			if (applicationToken == null || applicationToken.isEmpty()) {
 				throw new Exception("No Application Token found. Impossible to istance the SHUB");
 			}
 
@@ -54,7 +60,8 @@ public class WsInstanceUtil {
 	 * @return the workpace
 	 * @throws Exception the exception
 	 */
-	public static org.gcube.common.storagehubwrapper.server.tohl.Workspace getWorkspace(HttpSession httpSession) throws Exception {
+	public static org.gcube.common.storagehubwrapper.server.tohl.Workspace getWorkspace(HttpSession httpSession)
+			throws Exception {
 
 		try {
 			StorageHubWrapper wrapper = getStorageHubWrapper(httpSession);
@@ -89,7 +96,6 @@ public class WsInstanceUtil {
 		return scope;
 	}
 
-	
 	/**
 	 * Gets the application token.
 	 *
@@ -102,17 +108,54 @@ public class WsInstanceUtil {
 		String appTokenEnvVarName = null;
 		try {
 			logger.info("Reading " + ENVIRONMENT_VARIABLE_TOKEN_NAME + " from web.xml context");
-			appTokenEnvVarName = httpSession.getServletContext()
+			appTokenEnvVarName = httpSession.getServletContext().getInitParameter(ENVIRONMENT_VARIABLE_TOKEN_NAME);
-					.getInitParameter(ENVIRONMENT_VARIABLE_TOKEN_NAME);
 			logger.info("Found param-value '" + appTokenEnvVarName
 					+ "' from web context, reading its value from ENVIRONMENT");
 			appToken = System.getenv(appTokenEnvVarName);
 			logger.info("Value of " + appTokenEnvVarName + " from ENVIRONMENT is: " + appToken);
 
-		}catch (Exception e) {
+		} catch (Exception e) {
-			logger.error("Error on reading the ENV VARIABLE '"+appTokenEnvVarName+"' from ENVIRONMENT");
+			logger.error("Error on reading the ENV VARIABLE '" + appTokenEnvVarName + "' from ENVIRONMENT");
 		}
 
 		return appToken;
 	}
+
+	/**
+	 * Gets the url.
+	 *
+	 * @param workspace the workspace
+	 * @param fileItem  the file item
+	 * @return the url
+	 * @throws Exception the exception
+	 */
+	public static String getUrl(Workspace workspace, URLFileItem fileItem) throws Exception {
+		try {
+			return readStreamAsString(
+					workspace.downloadFile(fileItem.getId(), fileItem.getName(), null, null).getStream());
+		} catch (IOException e) {
+			logger.error("GET URL error for file: " + fileItem, e);
+			throw new InternalErrorException(e.getMessage());
+		}
+	}
+
+	/**
+	 * Read the entire input stream as string. The system encoding is used.
+	 *
+	 * @param is the input stream.
+	 * @return the read string.
+	 * @throws IOException Signals that an I/O exception has occurred.
+	 */
+	public static String readStreamAsString(InputStream is) throws java.io.IOException {
+		StringBuilder sb = new StringBuilder(1000);
+		BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+		char[] buf = new char[1024];
+		int numRead = 0;
+		while ((numRead = reader.read(buf)) != -1) {
+			sb.append(buf, 0, numRead);
+		}
+		reader.close();
+		return sb.toString();
+	}
+
 }

src/test/java/TestFolderIDDecrypt.java

@@ -1,19 +0,0 @@
-
-
-/**
- *
- */
-/**
- *
- * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
- * Sep 16, 2016
- */
-public class TestFolderIDDecrypt {
-
-
-	public static void main(String[] args) {
-
-
-
-	}
-}

src/test/java/org/gcube/portlets/user/workspaceexplorerapp/WorkspaceExplorerAppTests.java

@@ -0,0 +1,6 @@
+package org.gcube.portlets.user.workspaceexplorerapp;
+
+public class WorkspaceExplorerAppTests {
+	
+
+}