public links completed

git-svn-id: http://svn.d4science-ii.research-infrastructures.eu/gcube/trunk/portlets/user/workspace-tree-widget@78961 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/workspace/client/view/tree/ContextMenuTree.java

@@ -185,7 +185,6 @@ public class ContextMenuTree {
 		}); 
 		
 		contextMenu.add(mnGetLink); 
-		contextMenu.add(new SeparatorMenuItem());
 		
 		//PUBLIC LINK
 		MenuItem mnPublicLink = new MenuItem();  

src/main/java/org/gcube/portlets/user/workspace/server/GWTWorkspaceServiceImpl.java

@@ -52,6 +52,7 @@ import org.gcube.portlets.user.workspace.server.notifications.NotificationsProdu
 import org.gcube.portlets.user.workspace.server.notifications.NotificationsUtil;
 import org.gcube.portlets.user.workspace.server.resolver.UriResolverReaderParameter;
 import org.gcube.portlets.user.workspace.server.shortener.UrlShortener;
+import org.gcube.portlets.user.workspace.server.util.HttpRequestUtil;
 import org.gcube.portlets.user.workspace.server.util.StringUtil;
 import org.gcube.portlets.user.workspace.server.util.UserUtil;
 import org.gcube.portlets.user.workspace.server.util.WsUtil;
@@ -2260,10 +2261,16 @@ public class GWTWorkspaceServiceImpl extends RemoteServiceServlet implements GWT
 					itemName = StringUtil.replaceAllWhiteSpace(itemName, "_");
 					uriRequest =  uriResolver.resolveAsUriRequest(smpUri, itemName, folderItem.getMimeType(), true);
 
+					
+					//VALIDATE CONNECTION
+					if(!HttpRequestUtil.urlExists(uriRequest))
+						throw new Exception("Sorry, The Public Link for selected file is unavailable");
+						
 					if(shortenUrl)	
-						return getShortUrl(uriRequest);
+						uriRequest = getShortUrl(uriRequest);
 					
 					return uriRequest;
+
 				}
 				else
 					throw new Exception("Sorry, The Uri resolver service is temporarily unavailable. Please try again later");
@@ -2274,8 +2281,8 @@ public class GWTWorkspaceServiceImpl extends RemoteServiceServlet implements GWT
 			return "";
 			
 		}catch (Exception e) {
-			workspaceLogger.error("Error get short url for ", e);
+			workspaceLogger.error("Error getPublicLinkForFolderItemId for item: "+itemId);
-			return "";
+			throw new Exception(e.getMessage());
 		}
 		
 	}

src/main/java/org/gcube/portlets/user/workspace/server/util/HttpRequestUtil.java

@@ -0,0 +1,84 @@
+package org.gcube.portlets.user.workspace.server.util;
+
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.SocketTimeoutException;
+import java.net.URL;
+import java.net.URLConnection;
+
+import org.apache.log4j.Logger;
+
+
+/**
+ * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * @Apr 26, 2013
+ *
+ */
+public class HttpRequestUtil {
+
+	private static final int CONNECTION_TIMEOUT = 1000;
+	public static Logger logger = Logger.getLogger(HttpRequestUtil.class);
+
+	public static boolean urlExists(String urlConn) throws Exception {
+
+		
+		if(urlConn==null || urlConn.isEmpty())
+			return false;
+
+		URL url;
+		
+		try {
+			url = new URL(urlConn);
+
+			URLConnection connection = url.openConnection();
+			connection.setConnectTimeout(CONNECTION_TIMEOUT);
+		    connection.setReadTimeout(CONNECTION_TIMEOUT+CONNECTION_TIMEOUT);
+		
+			logger.trace("open connection on: " + url);
+
+			// Cast to a HttpURLConnection
+			if (connection instanceof HttpURLConnection) {
+				HttpURLConnection httpConnection = (HttpURLConnection) connection;
+				
+				httpConnection.setRequestMethod("GET");
+
+				int code = httpConnection.getResponseCode();
+				
+				httpConnection.disconnect();
+				
+				if (code == 200) {
+					logger.trace("status code is "+code+" - on url connetction: "+urlConn);
+					return true;
+				}else
+					logger.warn("status code is "+code+" - on url connetction: "+urlConn);
+				
+//				logger.trace("result: "+result);
+
+			} else {
+				logger.error("error - not a http request!");
+			}
+
+			return false;
+
+		} catch (SocketTimeoutException e) {
+			logger.error("Error SocketTimeoutException with url " +urlConn);
+			return true;
+		} catch (MalformedURLException e) {
+			logger.error("Error MalformedURLException with url " +urlConn);
+			throw new Exception("Error MalformedURLException");
+		} catch (IOException e) {
+			logger.error("Error IOException with url " +urlConn);
+			throw new Exception("Error IOException");
+		}catch (Exception e) {
+			logger.error("Error Exception with url " +urlConn);
+			throw new Exception("Error Exception");
+		}
+	}
+	
+	
+	
+	public static void main(String[] args) throws Exception {
+		System.out.println(HttpRequestUtil.urlExists("http://geoserver2.d4science.research-infrastructures.eu/geoserver/wms"));
+	}
+}