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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
* 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.ICollaboration;
import org.eclipse.net4j.buddies.common.ICollaborationContainer;
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 CollaborationContainer extends Lifecycle implements ICollaborationContainer, IListener
{
private Map<Long, ICollaboration> collaborations = new HashMap<Long, ICollaboration>();
public CollaborationContainer(Collection<ICollaboration> collaborations)
{
if (collaborations != null)
{
for (ICollaboration collaboration : collaborations)
{
this.collaborations.put(collaboration.getID(), collaboration);
collaboration.addListener(this);
}
}
}
public CollaborationContainer()
{
}
public void addCollaboration(ICollaboration collaboration)
{
long id = collaboration.getID();
synchronized (collaborations)
{
if (!collaborations.containsKey(id))
{
collaborations.put(id, collaboration);
}
}
IListener[] listeners = getListeners();
if (listeners != null)
{
fireEvent(new SingleDeltaContainerEvent<ICollaboration>(this, collaboration, IContainerDelta.Kind.ADDED),
listeners);
}
collaboration.addListener(this);
}
public ICollaboration removeCollaboration(long id)
{
ICollaboration collaboration;
synchronized (collaborations)
{
collaboration = collaborations.remove(id);
}
if (collaboration != null)
{
collaboration.removeListener(this);
IListener[] listeners = getListeners();
if (listeners != null)
{
fireEvent(new SingleDeltaContainerEvent<ICollaboration>(this, collaboration, IContainerDelta.Kind.REMOVED),
listeners);
}
}
return collaboration;
}
public ICollaboration[] getCollaborations()
{
synchronized (collaborations)
{
return collaborations.values().toArray(new ICollaboration[collaborations.size()]);
}
}
public ICollaboration getCollaboration(long id)
{
synchronized (collaborations)
{
return collaborations.get(id);
}
}
public ICollaboration[] getElements()
{
return getCollaborations();
}
public boolean isEmpty()
{
synchronized (collaborations)
{
return collaborations.isEmpty();
}
}
public void notifyEvent(IEvent event)
{
if (event.getSource() instanceof ICollaboration)
{
notifyCollaborationEvent(event);
if (event instanceof LifecycleEvent)
{
LifecycleEvent e = (LifecycleEvent)event;
if (e.getKind() == ILifecycleEvent.Kind.DEACTIVATED)
{
removeCollaboration(((ICollaboration)e.getSource()).getID());
}
}
}
}
protected void notifyCollaborationEvent(IEvent event)
{
}
@Override
protected void doDeactivate() throws Exception
{
for (ICollaboration collaboration : getCollaborations())
{
collaboration.removeListener(this);
}
super.doDeactivate();
}
}
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