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/***************************************************************************
* Copyright (c) 2004 - 2009 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:
* Simon McDuff - initial API and implementation
**************************************************************************/
package org.eclipse.emf.internal.cdo.net4j.protocol;
import org.eclipse.emf.cdo.CDOObject;
import org.eclipse.emf.cdo.common.io.CDODataInput;
import org.eclipse.emf.cdo.common.io.CDODataOutput;
import org.eclipse.emf.cdo.common.protocol.CDOProtocolConstants;
import org.eclipse.emf.cdo.view.CDOView;
import org.eclipse.emf.internal.cdo.net4j.bundle.OM;
import org.eclipse.net4j.util.concurrent.RWLockManager;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import java.io.IOException;
import java.util.Collection;
/**
* @author Simon McDuff
*/
public class UnlockObjectsRequest extends CDOClientRequest<Boolean>
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, UnlockObjectsRequest.class);
private CDOView view;
private Collection<? extends CDOObject> objects;
private RWLockManager.LockType lockType;
public UnlockObjectsRequest(CDOClientProtocol protocol, CDOView view, Collection<? extends CDOObject> objects,
RWLockManager.LockType lockType)
{
super(protocol, CDOProtocolConstants.SIGNAL_UNLOCK_OBJECTS);
this.view = view;
this.objects = objects;
this.lockType = lockType;
}
@Override
protected void requesting(CDODataOutput out) throws IOException
{
out.writeInt(view.getViewID());
out.writeCDOLockType(lockType);
if (objects == null)
{
if (TRACER.isEnabled())
{
TRACER.format("Unlocking all objects for view {0}", view.getViewID()); //$NON-NLS-1$
}
out.writeInt(CDOProtocolConstants.RELEASE_ALL_LOCKS);
}
else
{
if (TRACER.isEnabled())
{
TRACER.format("Unlocking of type {0} requested for view {1}", lockType == RWLockManager.LockType.READ ? "read" //$NON-NLS-1$ //$NON-NLS-2$
: "write", view.getViewID()); //$NON-NLS-1$
}
out.writeInt(objects.size());
for (CDOObject object : objects)
{
if (TRACER.isEnabled())
{
TRACER.format("Unlocking requested for objects {0}", object.cdoID()); //$NON-NLS-1$
}
out.writeCDOID(object.cdoID());
}
}
}
@Override
protected Boolean confirming(CDODataInput in) throws IOException
{
return in.readBoolean();
}
}
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