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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:
* Simon McDuff - initial API and implementation
*/
package org.eclipse.emf.cdo.internal.net4j.protocol;
import org.eclipse.emf.cdo.common.id.CDOID;
import org.eclipse.emf.cdo.common.lock.CDOLockState;
import org.eclipse.emf.cdo.common.protocol.CDODataInput;
import org.eclipse.emf.cdo.common.protocol.CDODataOutput;
import org.eclipse.emf.cdo.common.protocol.CDOProtocolConstants;
import org.eclipse.emf.cdo.internal.net4j.bundle.OM;
import org.eclipse.net4j.util.concurrent.IRWLockManager.LockType;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import org.eclipse.emf.spi.cdo.CDOSessionProtocol.UnlockObjectsResult;
import java.io.IOException;
import java.util.Collection;
/**
* @author Simon McDuff
*/
public class UnlockObjectsRequest extends CDOClientRequest<UnlockObjectsResult>
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, UnlockObjectsRequest.class);
private int viewID;
private Collection<CDOID> objectIDs;
private LockType lockType;
private boolean recursive;
public UnlockObjectsRequest(CDOClientProtocol protocol, int viewID, Collection<CDOID> objects, LockType lockType,
boolean recursive)
{
this(protocol, CDOProtocolConstants.SIGNAL_UNLOCK_OBJECTS, viewID, objects, lockType, recursive);
}
protected UnlockObjectsRequest(CDOClientProtocol protocol, short signalID, int viewID, Collection<CDOID> objectIDs,
LockType lockType, boolean recursive)
{
super(protocol, signalID);
this.viewID = viewID;
this.objectIDs = objectIDs;
this.lockType = lockType;
this.recursive = recursive;
}
@Override
protected void requesting(CDODataOutput out) throws IOException
{
out.writeInt(viewID);
out.writeCDOLockType(lockType);
out.writeBoolean(recursive);
if (objectIDs == null)
{
if (TRACER.isEnabled())
{
TRACER.format("Unlocking all objects for view {0}", viewID); //$NON-NLS-1$
}
out.writeInt(CDOProtocolConstants.RELEASE_ALL_LOCKS);
}
else
{
if (TRACER.isEnabled())
{
TRACER.format("Unlocking of type {0} requested for view {1}", lockType == LockType.READ ? "read" //$NON-NLS-1$ //$NON-NLS-2$
: "write", viewID); //$NON-NLS-1$
}
out.writeInt(objectIDs.size());
for (CDOID id : objectIDs)
{
if (TRACER.isEnabled())
{
TRACER.format("Unlocking requested for object {0}", id); //$NON-NLS-1$
}
out.writeCDOID(id);
}
}
}
@Override
protected UnlockObjectsResult confirming(CDODataInput in) throws IOException
{
long timestamp = in.readLong();
int n = in.readInt();
CDOLockState[] newLockStates = new CDOLockState[n];
for (int i = 0; i < n; i++)
{
newLockStates[i] = in.readCDOLockState();
}
return new UnlockObjectsResult(newLockStates, timestamp);
}
}
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