1 files changed, 143 insertions, 0 deletions
diff --git a/plugins/org.eclipse.net4j.buddies.common/src/org/eclipse/net4j/buddies/internal/common/BuddyContainer.java b/plugins/org.eclipse.net4j.buddies.common/src/org/eclipse/net4j/buddies/internal/common/BuddyContainer.java
new file mode 100644
index 0000000000..9c550ba0f1
--- /dev/null
+++ b/plugins/org.eclipse.net4j.buddies.common/src/org/eclipse/net4j/buddies/internal/common/BuddyContainer.java
@@ -0,0 +1,143 @@
+/***************************************************************************
+ * Copyright (c) 2004 - 2008 Eike Stepper, Germany.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ **************************************************************************/
+package org.eclipse.net4j.buddies.internal.common;
+
+import org.eclipse.net4j.buddies.common.IBuddy;
+import org.eclipse.net4j.buddies.common.IBuddyContainer;
+import org.eclipse.net4j.util.container.IContainerDelta;
+import org.eclipse.net4j.util.container.SingleDeltaContainerEvent;
+import org.eclipse.net4j.util.event.IEvent;
+import org.eclipse.net4j.util.event.IListener;
+import org.eclipse.net4j.util.lifecycle.ILifecycleEvent;
+import org.eclipse.net4j.util.lifecycle.Lifecycle;
+import org.eclipse.net4j.util.lifecycle.LifecycleEvent;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @author Eike Stepper
+ */
+public class BuddyContainer extends Lifecycle implements IBuddyContainer, IListener
+{
+  private Map<String, IBuddy> buddies = new HashMap<String, IBuddy>();
+
+  public BuddyContainer(Collection<IBuddy> buddies)
+  {
+    if (buddies != null)
+    {
+      for (IBuddy buddy : buddies)
+      {
+        this.buddies.put(buddy.getUserID(), buddy);
+        buddy.addListener(this);
+      }
+    }
+  }
+
+  public BuddyContainer()
+  {
+  }
+
+  public boolean addBuddy(IBuddy buddy)
+  {
+    String userID = buddy.getUserID();
+    synchronized (buddies)
+    {
+      if (!buddies.containsKey(userID))
+      {
+        buddies.put(userID, buddy);
+        fireEvent(new SingleDeltaContainerEvent<IBuddy>(this, buddy, IContainerDelta.Kind.ADDED));
+        buddy.addListener(this);
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  public IBuddy removeBuddy(String userID)
+  {
+    IBuddy buddy;
+    synchronized (buddies)
+    {
+      buddy = buddies.remove(userID);
+    }
+
+    if (buddy != null)
+    {
+      buddy.removeListener(this);
+      fireEvent(new SingleDeltaContainerEvent<IBuddy>(this, buddy, IContainerDelta.Kind.REMOVED));
+    }
+
+    return buddy;
+  }
+
+  public IBuddy[] getBuddies()
+  {
+    synchronized (buddies)
+    {
+      return buddies.values().toArray(new IBuddy[buddies.size()]);
+    }
+  }
+
+  public IBuddy getBuddy(String userID)
+  {
+    synchronized (buddies)
+    {
+      return buddies.get(userID);
+    }
+  }
+
+  public IBuddy[] getElements()
+  {
+    return getBuddies();
+  }
+
+  public boolean isEmpty()
+  {
+    synchronized (buddies)
+    {
+      return buddies.isEmpty();
+    }
+  }
+
+  public void notifyEvent(IEvent event)
+  {
+    if (event.getSource() instanceof IBuddy)
+    {
+      notifyBuddyEvent(event);
+      if (event instanceof LifecycleEvent)
+      {
+        LifecycleEvent e = (LifecycleEvent)event;
+        if (e.getKind() == ILifecycleEvent.Kind.DEACTIVATED)
+        {
+          removeBuddy(((IBuddy)e.getSource()).getUserID());
+        }
+      }
+    }
+  }
+
+  protected void notifyBuddyEvent(IEvent event)
+  {
+  }
+
+  @Override
+  protected void doDeactivate() throws Exception
+  {
+    for (IBuddy buddy : getBuddies())
+    {
+      buddy.removeListener(this);
+    }
+
+    super.doDeactivate();
+  }
+}