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/***************************************************************************
* Copyright (c) 2004 - 2011 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
* Caspar De Groot - maintenance
**************************************************************************/
package org.eclipse.emf.cdo.internal.net4j.protocol;
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.common.revision.CDORevisionKey;
import org.eclipse.net4j.util.concurrent.IRWLockManager;
import org.eclipse.net4j.util.concurrent.IRWLockManager.LockType;
import org.eclipse.emf.spi.cdo.CDOSessionProtocol.LockObjectsResult;
import java.io.IOException;
import java.util.List;
/**
* @author Eike Stepper, Caspar De Groot
*/
public class LockObjectsRequest extends CDOClientRequest<LockObjectsResult>
{
private int viewID;
private IRWLockManager.LockType lockType;
private long timeout;
private List<CDORevisionKey> revisionKeys;
public LockObjectsRequest(CDOClientProtocol protocol, List<CDORevisionKey> revisionKeys, int viewID,
LockType lockType, long timeout)
{
this(protocol, CDOProtocolConstants.SIGNAL_LOCK_OBJECTS, revisionKeys, viewID, lockType, timeout);
}
protected LockObjectsRequest(CDOClientProtocol protocol, short signalID, List<CDORevisionKey> revisionKeys,
int viewID, LockType lockType, long timeout)
{
super(protocol, signalID);
this.viewID = viewID;
this.lockType = lockType;
this.timeout = timeout;
this.revisionKeys = revisionKeys;
}
@Override
protected void requesting(CDODataOutput out) throws IOException
{
out.writeInt(viewID);
out.writeCDOLockType(lockType);
out.writeLong(timeout);
out.writeInt(revisionKeys.size());
for (CDORevisionKey revKey : revisionKeys)
{
out.writeCDORevisionKey(revKey);
}
}
@Override
protected LockObjectsResult confirming(CDODataInput in) throws IOException
{
boolean succesful = in.readBoolean();
boolean timeout = in.readBoolean();
boolean waitForUpdate = in.readBoolean();
long requiredTimestamp = in.readLong();
int nStaleRevisions = in.readInt();
CDORevisionKey[] staleRevisions = new CDORevisionKey[nStaleRevisions];
for (int i = 0; i < nStaleRevisions; i++)
{
staleRevisions[i] = in.readCDORevisionKey();
}
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 LockObjectsResult(succesful, timeout, waitForUpdate, requiredTimestamp, staleRevisions, newLockStates,
timestamp);
}
}
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