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/***************************************************************************
* 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.protocol;
import org.eclipse.net4j.buddies.common.IBuddyProvider;
import org.eclipse.net4j.buddies.common.ICollaborationProvider;
import org.eclipse.net4j.buddies.internal.common.Buddy;
import org.eclipse.net4j.buddies.internal.common.Collaboration;
import org.eclipse.net4j.signal.Indication;
import org.eclipse.net4j.signal.SignalProtocol;
import org.eclipse.net4j.util.io.ExtendedDataInputStream;
/**
* @author Eike Stepper
*/
public class CollaborationLeftIndication extends Indication
{
private IBuddyProvider buddyProvider;
private ICollaborationProvider collaborationProvider;
public CollaborationLeftIndication(SignalProtocol<?> protocol, IBuddyProvider buddyProvider,
ICollaborationProvider collaborationProvider)
{
super(protocol, ProtocolConstants.SIGNAL_COLLABORATION_LEFT);
this.buddyProvider = buddyProvider;
this.collaborationProvider = collaborationProvider;
}
@Override
protected void indicating(ExtendedDataInputStream in) throws Exception
{
long collaborationID = in.readLong();
String userID = in.readString();
Collaboration collaboration = getCollaboration(collaborationID);
if (collaboration != null)
{
Buddy buddy = getBuddy(userID);
if (buddy != null)
{
collaborationLeft(buddy, collaboration);
}
}
}
protected void collaborationLeft(Buddy buddy, Collaboration collaboration)
{
collaboration.removeMembership(buddy);
buddy.removeMembership(collaboration);
}
protected Collaboration getCollaboration(long collaborationID)
{
return (Collaboration)collaborationProvider.getCollaboration(collaborationID);
}
protected Buddy getBuddy(String userID)
{
return (Buddy)buddyProvider.getBuddy(userID);
}
}
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