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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.emf.internal.cdo.protocol;
import org.eclipse.emf.cdo.internal.protocol.CDOIDImpl;
import org.eclipse.emf.cdo.internal.protocol.revision.CDORevisionImpl;
import org.eclipse.emf.cdo.protocol.CDOID;
import org.eclipse.emf.cdo.protocol.CDOProtocolConstants;
import org.eclipse.emf.cdo.protocol.revision.CDORevision;
import org.eclipse.emf.internal.cdo.bundle.OM;
import org.eclipse.net4j.IChannel;
import org.eclipse.net4j.internal.util.om.trace.ContextTracer;
import org.eclipse.net4j.util.io.ExtendedDataInputStream;
import org.eclipse.net4j.util.io.ExtendedDataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* @author Eike Stepper
*/
public class VerifyRevisionRequest extends CDOClientRequest<List<CDORevisionImpl>>
{
private static final ContextTracer PROTOCOL = new ContextTracer(OM.DEBUG_PROTOCOL, VerifyRevisionRequest.class);
private Collection<CDORevisionImpl> revisions;
public VerifyRevisionRequest(IChannel channel, Collection<CDORevisionImpl> revisions)
{
super(channel);
this.revisions = revisions;
}
public VerifyRevisionRequest(IChannel channel, CDORevisionImpl revision)
{
this(channel, Collections.singleton(revision));
}
@Override
protected short getSignalID()
{
return CDOProtocolConstants.SIGNAL_VERIFY_REVISION;
}
@Override
protected void requesting(ExtendedDataOutputStream out) throws IOException
{
if (PROTOCOL.isEnabled()) PROTOCOL.format("Writing {0} IDs and versions", revisions.size());
out.writeInt(revisions.size());
for (CDORevisionImpl revision : revisions)
{
CDOID id = revision.getID();
int version = revision.getVersion();
if (PROTOCOL.isEnabled()) PROTOCOL.format("Writing ID and version: {0}v{1}", id, version);
CDOIDImpl.write(out, id);
out.writeInt(version);
}
}
@Override
protected List<CDORevisionImpl> confirming(ExtendedDataInputStream in) throws IOException
{
ArrayList<CDORevisionImpl> result = new ArrayList<CDORevisionImpl>();
if (PROTOCOL.isEnabled()) PROTOCOL.format("Reading {0} timeStamps", revisions.size());
for (CDORevisionImpl revision : revisions)
{
long revised = in.readLong();
if (PROTOCOL.isEnabled()) PROTOCOL.format("Reading timeStamp: {0}", revised);
if (revised != CDORevision.UNSPECIFIED_DATE)
{
revision.setRevised(revised);
result.add(revision);
}
}
return result;
}
}
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