updated for displaying topic seach results

git-svn-id: http://svn.research-infrastructures.eu/public/d4science/gcube/trunk/portlets/user/news-feed@100484 82a268e6-3cf1-43bd-a215-b396298e98cf

.classpath

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" output="target/news-feed-1.7.1-SNAPSHOT/WEB-INF/classes" path="src/main/java">
+	<classpathentry kind="src" output="target/news-feed-1.8.0-SNAPSHOT/WEB-INF/classes" path="src/main/java">
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
@@ -31,5 +31,5 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="output" path="target/news-feed-1.7.1-SNAPSHOT/WEB-INF/classes"/>
+	<classpathentry kind="output" path="target/news-feed-1.8.0-SNAPSHOT/WEB-INF/classes"/>
 </classpath>

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

@@ -1,5 +1,5 @@
 eclipse.preferences.version=1
 jarsExcludedFromWebInfLib=
-lastWarOutDir=/Users/massi/Documents/workspace/news-feed/target/news-feed-1.7.1-SNAPSHOT
+lastWarOutDir=/Users/massi/Documents/workspace/news-feed/target/news-feed-1.8.0-SNAPSHOT
 warSrcDir=src/main/webapp
 warSrcDirIsOutput=false

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

@@ -4,7 +4,7 @@
     <wb-resource deploy-path="/" source-path="/src/main/webapp" tag="defaultRootSource"/>
     <wb-resource deploy-path="/WEB-INF/classes" source-path="/src/main/java"/>
         <wb-resource deploy-path="/WEB-INF/classes" source-path="/target/generated-sources/gwt"/>
-        <dependent-module archiveName="session-checker-0.2.5-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/session-checker/session-checker">
+        <dependent-module archiveName="workspace-light-tree-2.13.1-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/workspace-light-tree/workspace-light-tree">
             <dependency-type>uses</dependency-type>
         </dependent-module>
         <dependent-module archiveName="wsmail-widget-1.7.0-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/wsmail-widget/wsmail-widget">

pom.xml

@@ -13,7 +13,7 @@
 	<groupId>org.gcube.portlets.user</groupId>
 	<artifactId>news-feed</artifactId>
 	<packaging>war</packaging>
-	<version>1.7.1-SNAPSHOT</version>
+	<version>1.8.0-SNAPSHOT</version>
 
 	<name>gCube News Feed Portlet</name>
 	<description>

src/main/java/org/gcube/portlets/user/newsfeed/client/NewsService.java

@@ -25,6 +25,8 @@ public interface NewsService extends RemoteService {
 	
 	ArrayList<EnhancedFeed> getOnlyLikedFeeds();
 	
+	ArrayList<EnhancedFeed> getFeedsByHashtag(String hashtag);
+	
 	MoreFeedsBean getMoreFeeds(int from, int quantity);
 	
 	boolean like(String feedid, String feedText, String feedOwnerId);

src/main/java/org/gcube/portlets/user/newsfeed/client/NewsServiceAsync.java

@@ -58,5 +58,8 @@ public interface NewsServiceAsync {
 
 	void getOrganizationUsers(String currentScope,
 			AsyncCallback<ArrayList<PickingUser>> callback);
+
+	void getFeedsByHashtag(String hashtag,
+			AsyncCallback<ArrayList<EnhancedFeed>> callback);
 	
 }

src/main/java/org/gcube/portlets/user/newsfeed/client/panels/NewsFeedPanel.java

@@ -39,6 +39,7 @@ import org.gcube.portlets.user.newsfeed.client.event.UnLikeEvent;
 import org.gcube.portlets.user.newsfeed.client.event.UnLikeEventHandler;
 import org.gcube.portlets.user.newsfeed.client.ui.FilterPanel;
 import org.gcube.portlets.user.newsfeed.client.ui.NewFeedsAvailable;
+import org.gcube.portlets.user.newsfeed.client.ui.ResultsFor;
 import org.gcube.portlets.user.newsfeed.client.ui.ShowMoreFeeds;
 import org.gcube.portlets.user.newsfeed.client.ui.SingleComment;
 import org.gcube.portlets.user.newsfeed.client.ui.TweetTemplate;
@@ -55,7 +56,9 @@ import org.gcube.portlets.widgets.userselection.shared.ItemSelectableBean;
 
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.RunAsyncCallback;
+
 import java.util.HashMap;
+
 import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.Style.Unit;
 import com.google.gwt.event.shared.HandlerManager;
@@ -111,7 +114,7 @@ public class NewsFeedPanel extends Composite {
 	public static final String MESSAGE_LABEL =  "Message";
 
 	private String vreLabel;
-	
+
 	private boolean showFeedTimelineSource = false;
 	private boolean isInfrastructure = false;
 
@@ -159,7 +162,7 @@ public class NewsFeedPanel extends Composite {
 				doAddLike( event.getOwner(), event.getFeedId());
 			}
 		});  
-		
+
 		eventBus.addHandler(UnLikeEvent.TYPE, new UnLikeEventHandler() {
 			@Override
 			public void onUnLike(UnLikeEvent event) {
@@ -251,7 +254,7 @@ public class NewsFeedPanel extends Composite {
 		newsPanel.add(loadingImage);
 
 		CheckSession.getInstance().startPolling();
-		
+
 		newsService.getUserSettings(new AsyncCallback<UserSettings>() {
 			@Override
 			public void onFailure(Throwable caught) {		
@@ -268,11 +271,19 @@ public class NewsFeedPanel extends Composite {
 					doShowSessionExpired();			
 				} 
 				else {
+					GWT.log("checking params ");
 					if (getFeedToShowId() != null) {
 						String feedKey = getFeedToShowId();
 						showSingleFeed(feedKey);
 						filterPanel.removeFilterSelected();
-					} else {
+					} 
+					else if (getHashtagParam() != null) {
+						String hashtag = Encoder.decode(getHashtagParam());
+						GWT.log("Found hashtag " + hashtag);
+						showFeedsByHashtag(hashtag);
+						filterPanel.removeFilterSelected();
+					} 
+					else {
 						showAllUpdatesFeeds();
 					}
 					currentFilter = FilterType.ALL_UPDATES;
@@ -340,6 +351,13 @@ public class NewsFeedPanel extends Composite {
 	private String getFeedToShowId() {
 		return Window.Location.getParameter(GET_OID_PARAMETER);
 	}
+	/**
+	 * check if it has to show the feeds given an hashtag
+	 * @return
+	 */
+	private String getHashtagParam() {
+		return Window.Location.getParameter(Encoder.encode(GCubeSocialNetworking.HASHTAG_OID));
+	}
 	/**
 	 * used from notification referrals (see this Post)
 	 * @param feedKey
@@ -350,7 +368,7 @@ public class NewsFeedPanel extends Composite {
 			@Override
 			public void onSuccess(EnhancedFeed result) {
 				if (result.getFeed().getType() == FeedType.DISABLED) {
-					
+
 					String usrLink = "<a class=\"link\" href=\""+GCubeSocialNetworking.USER_PROFILE_LINK+"?"+
 							Encoder.encode(GCubeSocialNetworking.USER_PROFILE_OID)+"="+
 							Encoder.encode(result.getFeed().getEntityId())+"\">"+result.getFeed().getFullName()+
@@ -437,7 +455,67 @@ public class NewsFeedPanel extends Composite {
 			}
 		});	
 	}
-
+	/**
+	 * get the hashtagged feeds
+	 * @param hashtag to look for
+	 */
+	private void showFeedsByHashtag(final String hashtag) {
+		showLoader();
+		newsService.getUserSettings(new AsyncCallback<UserSettings>() {
+			@Override
+			public void onFailure(Throwable caught) { 
+				doStopFeedsTimer(); 
+			}
+			@Override
+			public void onSuccess(UserSettings result) {
+				if (result.getUserInfo().getUsername().equals("test.user")) {
+					doStopFeedsTimer();
+					doShowSessionExpired();				
+				}  else {
+					/**
+					 * this check avoids the 2 tabs open in 2 different scope, if the previous tab was open at VRE Level and then antoher
+					 * is open at infra level the first tab stops checking for updates
+					 */
+					if (result.getCurrentScope().compareTo(currentScope) == 0) { 
+						newsService.getFeedsByHashtag(hashtag, new AsyncCallback<ArrayList<EnhancedFeed>>() {
+							@Override
+							public void onSuccess(ArrayList<EnhancedFeed> feeds) {
+								filterPanelWrapper.setVisible(false);
+								newsPanel.clear();
+								if (feeds != null) {
+									if (feeds.size() == 0) { 
+										newsPanel.add(new ResultsFor(hashtag));
+										newsPanel.add(new HTML("<div class=\"nofeed-message\" style=\"height: 200px;\">" +
+												"Sorry, looks like we found no updates with topic: " + hashtag +"</div>"));
+										isFirstTweet = true;
+									}
+									else {
+										newsPanel.setHeight("");
+										newsPanel.setHorizontalAlignment(HasAlignment.ALIGN_LEFT);
+										newsPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_TOP);
+										newsPanel.add(new ResultsFor(hashtag));
+										for (EnhancedFeed feed : feeds) {
+											newsPanel.add(new TweetTemplate(false, showFeedTimelineSource, myUserInfo, feed, eventBus)); //in the view
+										}
+										if (feeds.size() < 5) {
+											newsPanel.add(new Image(spacer));
+										}									
+										isFirstTweet = false;
+									}
+								} else {
+									showProblems();
+								}
+							}
+							@Override
+							public void onFailure(Throwable caught) {
+								showProblems();
+							}
+						});
+					}				
+				}
+			}
+		});	
+	}
 
 	/**
 	 * called when a user click on the are new updates	
@@ -775,7 +853,7 @@ public class NewsFeedPanel extends Composite {
 			}
 		});		
 	}
-	
+
 	protected void doUnLike(TweetTemplate owner, String feedId) {
 		newsService.unlike(feedId, owner.getMyFeedText(), owner.getMyFeedUserId(), new AsyncCallback<Boolean>() {
 			@Override
@@ -787,7 +865,7 @@ public class NewsFeedPanel extends Composite {
 				}
 			}
 		});		
-		
+
 	}
 
 	private void doShowSessionExpired() {
@@ -801,7 +879,7 @@ public class NewsFeedPanel extends Composite {
 			}   
 		});
 	}
-	
+
 	private void doShowLikes(final String feedId) {
 		GWT.runAsync(UserSelectionDialog.class, new RunAsyncCallback() {
 			@Override

src/main/java/org/gcube/portlets/user/newsfeed/client/ui/ResultsFor.java

@@ -0,0 +1,40 @@
+package org.gcube.portlets.user.newsfeed.client.ui;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Style.Cursor;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.uibinder.client.UiBinder;
+import com.google.gwt.uibinder.client.UiField;
+import com.google.gwt.uibinder.client.UiHandler;
+import com.google.gwt.user.client.Window.Location;
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.HTML;
+import com.google.gwt.user.client.ui.Widget;
+
+public class ResultsFor extends Composite {
+
+	private static ResultsForUiBinder uiBinder = GWT
+			.create(ResultsForUiBinder.class);
+
+	interface ResultsForUiBinder extends UiBinder<Widget, ResultsFor> {
+	}
+
+	@UiField HTML allUpdatesLink;
+	@UiField HTML resultForDiv;
+	public ResultsFor(String hashtag) {
+		initWidget(uiBinder.createAndBindUi(this));
+		allUpdatesLink.setHTML("<a>All Updates</a>");
+		allUpdatesLink.getElement().getStyle().setCursor(Cursor.POINTER);
+		resultForDiv.setHTML("results for <a>" + hashtag+"</a>");
+		resultForDiv.setStyleName("filter-selected");
+	}	
+	
+	@UiHandler("allUpdatesLink")
+	void onAllUpdatesClick(ClickEvent e) {
+		String href = Location.getHref();
+		if (href.contains("?"))
+			href = href.substring(0, href.indexOf("?"));
+		Location.assign(href);
+	}
+
+}

src/main/java/org/gcube/portlets/user/newsfeed/client/ui/ResultsFor.ui.xml

@@ -0,0 +1,16 @@
+<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
+<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
+	xmlns:g="urn:import:com.google.gwt.user.client.ui">
+	<g:HTMLPanel>
+		<div class="feed-filters">
+			<ul>
+				<li class="feed-breadcrumb">
+					<g:HTML ui:field="allUpdatesLink"></g:HTML>
+				</li>
+				<li class="final">
+					<g:HTML ui:field="resultForDiv"></g:HTML>
+				</li>
+			</ul>
+		</div>
+	</g:HTMLPanel>
+</ui:UiBinder> 

src/main/java/org/gcube/portlets/user/newsfeed/server/NewsServiceImpl.java

@@ -82,8 +82,6 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	 */
 	private DatabookStore store;
 
-	private boolean withinPortal = false;
-
 	private final static int MAX_FEEDS_NO = 45;
 
 	public void init() {
@@ -104,11 +102,8 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		if (user == null) {
 			_log.warn("USER IS NULL setting testing user and Running OUTSIDE PORTAL");
 			user = getDevelopmentUser();
-			SessionManager.getInstance().getASLSession(sessionID, user).setScope("/gcube/devNext/NextNext");
+			SessionManager.getInstance().getASLSession(sessionID, user).setScope("/gcube/devsec/USTORE_VRE");
-		}
+		}		
-		else {
-			withinPortal = true;
-		}
 		return SessionManager.getInstance().getASLSession(sessionID, user);
 	}
 	/**
@@ -117,9 +112,23 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	 */
 	public String getDevelopmentUser() {
 		String user = TEST_USER;
-//		user = "massimiliano.assante";
+		//user = "massimiliano.assante";
 		return user;
 	}
+	/**
+	 * 
+	 * @return true if you're running into the portal, false if in development
+	 */
+	private boolean isWithinPortal() {
+		try {
+			UserLocalServiceUtil.getService();
+			return true;
+		} 
+		catch (com.liferay.portal.kernel.bean.BeanLocatorException ex) {			
+			_log.trace("Development Mode ON");
+			return false;
+		}			
+	}
 	/**
 	 * this is the first method called by the web app
 	 */
@@ -199,7 +208,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		ArrayList<Feed> toMerge = new ArrayList<Feed>();
 		HashMap<String, Feed> feedsMap = new HashMap<String, Feed>();
 		try {
-			if (!withinPortal) {
+			if (!isWithinPortal()) {
 				return getEclipseResult(userName, feedsNoPerCategory, false);
 			}
 			else {
@@ -276,6 +285,85 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		return null;
 	}
 
+	/**
+	 * return the feeds having the hashtag passed as param the user has access on
+	 * @param hashtag the hashtag to look for including '#'
+	 */
+	@Override
+	public ArrayList<EnhancedFeed> getFeedsByHashtag(String hashtag)  {
+		ASLSession session = getASLSession();
+		String userName = session.getUsername();
+		ArrayList<Feed> toMerge = new ArrayList<Feed>();
+		HashMap<String, Feed> feedsMap = new HashMap<String, Feed>();
+		try {
+			//in case the portal is restarted and you have the social home open it will get test.user (no callback to set session info)
+			//this check just return nothing if that happens
+			if (userName.compareTo("test.user") == 0) {
+				_log.debug("Found " + userName + " returning nothing");
+				return null;
+			}
+
+			_log.info("****** retrieving feeds for user: " + userName);
+
+			/**
+			 * this handles the case where the portlet is deployed outside of VREs (regular)
+			 */
+			if (isInfrastructureScope()) {
+				User currUser = OrganizationsUtil.validateUser(userName);
+				//VRE Feeds
+				for (Organization org : currUser.getOrganizations()) {
+					GroupManager gm = new LiferayGroupManager();
+					if (gm.isVRE(org.getOrganizationId()+"")) {
+						String vreid = gm.getScope(""+org.getOrganizationId()); //get the scope 
+						_log.debug("Reading hastagged feeds for VRE: " + vreid + " hashtag=" + hashtag);
+						
+						ArrayList<Feed> OrganizationFeeds =  (ArrayList<Feed>) store.getVREFeedsByHashtag(vreid, hashtag);
+						for (Feed feed : OrganizationFeeds) {
+							feedsMap.put(feed.getKey(), feed);							
+						}
+					}
+				}				
+			}
+			//else must be in a VRE scope
+			else {
+				String vreid = session.getScopeName();
+				_log.trace("News Feed in VRE, Reading feeds for VRE: " + vreid);
+				ArrayList<Feed> OrganizationFeeds =  (ArrayList<Feed>) store.getVREFeedsByHashtag(vreid, hashtag);
+				for (Feed feed : OrganizationFeeds) {
+					feedsMap.put(feed.getKey(), feed);							
+				}
+			}
+
+			for (String key: feedsMap.keySet()) {
+				toMerge.add(feedsMap.get(key));
+			}				
+
+			//sort the feeds in reverse chronological order
+			Collections.sort(toMerge, Collections.reverseOrder());
+
+			ArrayList<Feed> toReturn = new ArrayList<Feed>();
+			//return only <MAX_FEEDS_NO> feeds
+			if (toMerge.size() > MAX_FEEDS_NO) 
+				for (int i = 0; i < MAX_FEEDS_NO; i++) 
+					toReturn.add(toMerge.get(i));
+			else {
+				return enhanceFeeds(toMerge, 2);
+			}
+			return enhanceFeeds(toReturn, 2);
+		} catch (PrivacyLevelTypeNotFoundException e) {
+			_log.error("Privacy Level not Found " + e.getMessage());
+			e.printStackTrace();
+		} catch (FeedTypeNotFoundException e) {
+			_log.error("Feed Type not Found " + e.getMessage());
+			e.printStackTrace();
+		} catch (ColumnNameNotFoundException e) {
+			_log.error("Column name not Found " + e.getMessage());
+			e.printStackTrace();
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		return null;
+	}
 	/**
 	 * return only the user connection feeds
 	 */
@@ -285,7 +373,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		HashMap<String, Feed> feedsMap = new HashMap<String, Feed>();
 		String userName = getASLSession().getUsername();
 		try {
-			if (! withinPortal) {
+			if (! isWithinPortal()) {
 				return getEclipseResult(userName, NewsConstants.FEEDS_NO_PER_CATEGORY, true);
 			}
 			else {
@@ -459,11 +547,11 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	public boolean like(String feedid, String feedText, String feedOwnerId) {
 		boolean likeCommitResult = false;
 		UserInfo user = getUserSettings().getUserInfo();
-		
+
 		if (user.getUsername().compareTo(TEST_USER) == 0) {
 			return false;
 		}
-		
+
 		Like toLike = new Like(UUID.randomUUID().toString(), user.getUsername(), 
 				new Date(), feedid, user.getFullName(), user.getAvatarId());
 		try {
@@ -534,7 +622,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 			return null;
 		}
 		//if the comment was correctly delivered && is not an app feed notify users involved
-		if (commentCommitResult && withinPortal) {
+		if (commentCommitResult && isWithinPortal()) {
 			//if the user who commented this post is not the user who posted it notify the poster user (Feed owner) 
 			NotificationsManager nm = new ApplicationNotificationsManager(getASLSession());
 			if (! user.getUsername().equals(feedOwnerId) && (!isAppFeed)) {				
@@ -585,7 +673,8 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	 */
 	private ArrayList<EnhancedFeed> enhanceFeeds(ArrayList<Feed> toEnhance, int commentsNumberPerFeed) {
 		ArrayList<EnhancedFeed> toReturn = new ArrayList<EnhancedFeed>();
-		String username = getASLSession().getUsername();
+		ASLSession session = getASLSession();
+		String username = session.getUsername();
 
 		ArrayList<String> likedFeeds = (ArrayList<String>) store.getAllLikedFeedIdsByUser(getASLSession().getUsername());
 		boolean skip = false;
@@ -652,7 +741,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	 * @return the url of the image portrait for this portal instance
 	 */
 	private String getUserImagePortraitUrlLocal(String screenName) {
-		if (! withinPortal) {
+		if (! isWithinPortal()) {
 			return "";
 		}
 		StringBuilder thumbnailURL = new StringBuilder("/image/user_male_portrait?img_id=");
@@ -709,9 +798,18 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	}
 	@Override
 	public boolean deleteFeed(String feedid) {
-		_log.trace("Attempting to delete feed " + feedid);
+		_log.trace("Called delete feed " + feedid);
 		try {
+			Feed toDelete = store.readFeed(feedid);
+			List<String> hashtags = Utils.getHashTags(toDelete.getDescription());
+			if (hashtags != null && !hashtags.isEmpty()) {
+				_log.trace("The feed has hashtags, attempting to delete them ... " +  hashtags.toString());
+				boolean deletedHashtag = store.deleteHashTags(feedid, toDelete.getVreid(), hashtags);
+				_log.trace("deletedHashtag? " +  deletedHashtag);
+			}
+			_log.trace("Attempting to delete feed " + feedid);
 			return store.deleteFeed(feedid);
+			
 		} catch (Exception e) {
 			e.printStackTrace();
 			return false;
@@ -719,7 +817,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	}
 	@Override
 	public ArrayList<PickingUser> getOrganizationUsers(String currentScope) {
-		ArrayList<PickingUser> toReturn = Utils.getOrganizationUsers(currentScope, getASLSession().getUsername(), withinPortal);
+		ArrayList<PickingUser> toReturn = Utils.getOrganizationUsers(currentScope, getASLSession().getUsername(), isWithinPortal());
 		_log.trace("Returning " + toReturn.size() + " users for scope " + currentScope);
 		return toReturn;
 	}
@@ -784,7 +882,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		if (fullNames == null) 
 			return new ArrayList<PickingUser>();
 		else {
-			ArrayList<PickingUser> allUsers = Utils.getOrganizationUsers("/"+OrganizationsUtil.getRootOrganizationName(), getASLSession().getUsername(), withinPortal);
+			ArrayList<PickingUser> allUsers = Utils.getOrganizationUsers("/"+OrganizationsUtil.getRootOrganizationName(), getASLSession().getUsername(), isWithinPortal());
 			ArrayList<PickingUser> toReturn = new ArrayList<PickingUser>();
 			for (String fullName : fullNames) 
 				for (PickingUser puser : allUsers) {					
@@ -804,7 +902,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	 * @throws PortalException 
 	 */
 	private boolean isAdmin() throws PortalException, SystemException  {
-		if (! withinPortal)
+		if (! isWithinPortal())
 			return false;
 
 		try {
@@ -926,4 +1024,6 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 
 
 
+
+
 }

src/main/java/org/gcube/portlets/user/newsfeed/server/Utils.java

@@ -4,6 +4,8 @@ import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import org.apache.commons.codec.binary.Base64;
 import org.gcube.common.scope.impl.ScopeBean;
@@ -76,6 +78,20 @@ public class Utils {
 		}
 		return portalUsers;
 	}
+	/**
+	 * utility method that extract the hashtags from a text
+	 * @param postText
+	 * @return the list of hashtags present in the text
+	 */
+	protected static List<String> getHashTags(String postText) {
+		List<String> hashtags = new ArrayList<>();		
+		Pattern MY_PATTERN = Pattern.compile("#(\\w+)");
+		Matcher matcher = MY_PATTERN.matcher(postText);
+		while (matcher.find()) {
+			hashtags.add("#"+matcher.group(1));
+		}
+		return hashtags;		
+	}
 	/**
 	 * Escape an html string. Escaping data received from the client helps to
 	 * prevent cross-site script vulnerabilities.

src/main/resources/org/gcube/portlets/user/newsfeed/NewsFeed.gwt.xml

@@ -4,7 +4,7 @@
 	<inherits name='com.google.gwt.user.User' />
 
 	<!-- To Comment out -->
-<!-- 	<set-property name="user.agent" value="safari,gecko1_8,ie9" /> -->
+	<set-property name="user.agent" value="safari,gecko1_8" />
 
 	<!-- Other module inherits -->
 	<inherits name="net.eliasbalasis.tibcopagebus4gwt.tibcopagebus4gwt" />

src/main/webapp/NewsFeed.css

@@ -5,7 +5,10 @@ table {
 	border-spacing: 0;
 }
 
-
+.result-hashtag {
+	color: #555;
+	font-size: 20px;
+}
 /* Superpose TextArea and Highlight DIV trick starts here */
 #comment-supercontainer {
 	position: relative;
@@ -180,6 +183,11 @@ table {
 	background-image: none;
 }
 
+.feed-filters li.feed-breadcrumb {
+	background-image: url("images/arrow-right.png");
+}
+
+
 .filter-selected a {
 	color: #336699 !important;
 	font-weight: bold;