Improce JCR utilities

[lgpl/argeo-commons.git] / server / runtime / org.argeo.server.jcr / src / main / java / org / argeo / jcr / JcrUtils.java

diff --git a/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java b/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java
index bc7862f5fea23b5a3a2b4d935cfbb1bed2d13ebc..ccaef384de4afb27f0ad0c9e3eaebe5c0acb7950 100644 (file)
--- a/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java
+++ b/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java
@@ -41,7 +41,9 @@ import javax.jcr.RepositoryException;
 import javax.jcr.RepositoryFactory;
 import javax.jcr.Session;
 import javax.jcr.Value;
+import javax.jcr.Workspace;
 import javax.jcr.nodetype.NodeType;
+import javax.jcr.observation.EventListener;
 import javax.jcr.query.Query;
 import javax.jcr.query.QueryResult;
 import javax.jcr.query.qom.Constraint;
@@ -650,6 +652,24 @@ public class JcrUtils implements ArgeoJcrConstants {
                return getUserHome(session, userID);
        }
 
+       /**
+        * Returns user home has path, embedding exceptions. Contrary to
+        * {@link #getUserHome(Session)}, it never returns null but throws and
+        * exception if not found.
+        */
+       public static String getUserHomePath(Session session) {
+               String userID = session.getUserID();
+               try {
+                       Node userHome = getUserHome(session, userID);
+                       if (userHome != null)
+                               return userHome.getPath();
+                       else
+                               throw new ArgeoException("No home registered for " + userID);
+               } catch (RepositoryException e) {
+                       throw new ArgeoException("Cannot find user home path", e);
+               }
+       }
+
        /** Get the profile of the user attached to this session. */
        public static Node getUserProfile(Session session) {
                String userID = session.getUserID();
@@ -709,6 +729,7 @@ public class JcrUtils implements ArgeoJcrConstants {
                }
        }
 
+       /** Creates an Argeo user home. */
        public static Node createUserHome(Session session, String homeBasePath,
                        String username) {
                try {
@@ -738,4 +759,35 @@ public class JcrUtils implements ArgeoJcrConstants {
                                        + username, e);
                }
        }
+
+       /**
+        * Quietly unregisters an {@link EventListener} from the udnerlying
+        * workspace of this node.
+        */
+       public static void unregisterQuietly(Node node, EventListener eventListener) {
+               try {
+                       unregisterQuietly(node.getSession().getWorkspace(), eventListener);
+               } catch (RepositoryException e) {
+                       // silent
+                       if (log.isTraceEnabled())
+                               log.trace("Could not unregister event listener "
+                                               + eventListener);
+               }
+       }
+
+       /** Quietly unregisters an {@link EventListener} from this workspace */
+       public static void unregisterQuietly(Workspace workspace,
+                       EventListener eventListener) {
+               if (eventListener == null)
+                       return;
+               try {
+                       workspace.getObservationManager()
+                                       .removeEventListener(eventListener);
+               } catch (RepositoryException e) {
+                       // silent
+                       if (log.isTraceEnabled())
+                               log.trace("Could not unregister event listener "
+                                               + eventListener);
+               }
+       }
 }