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/*
* Copyright (c) 2010-2012, 2016 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
*/
package org.eclipse.emf.cdo.server.internal.net4j.protocol;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.id.CDOID;
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.CDORevision;
import org.eclipse.emf.cdo.common.revision.CDORevisionKey;
import org.eclipse.emf.cdo.common.revision.CDORevisionUtil;
import org.eclipse.emf.cdo.spi.common.branch.CDOBranchUtil;
import org.eclipse.emf.cdo.spi.common.commit.CDORevisionAvailabilityInfo;
import org.eclipse.emf.cdo.spi.server.InternalRepository;
import org.eclipse.net4j.util.om.monitor.OMMonitor;
import org.eclipse.emf.spi.cdo.CDOSessionProtocol.MergeDataResult;
import java.io.IOException;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
/**
* @author Eike Stepper
*/
public class LoadMergeDataIndication extends CDOServerReadIndicationWithMonitoring
{
private CDORevisionAvailabilityInfo targetInfo;
private CDORevisionAvailabilityInfo sourceInfo;
private CDORevisionAvailabilityInfo targetBaseInfo;
private CDORevisionAvailabilityInfo sourceBaseInfo;
private int infos;
private boolean auto;
public LoadMergeDataIndication(CDOServerProtocol protocol)
{
super(protocol, CDOProtocolConstants.SIGNAL_LOAD_MERGE_DATA);
}
@Override
protected int getIndicatingWorkPercent()
{
return 10;
}
@Override
protected void indicating(CDODataInput in, OMMonitor monitor) throws Exception
{
infos = in.readXInt();
monitor.begin(infos);
try
{
targetInfo = readRevisionAvailabilityInfo(in, monitor.fork());
sourceInfo = readRevisionAvailabilityInfo(in, monitor.fork());
if (infos > 2)
{
targetBaseInfo = readRevisionAvailabilityInfo(in, monitor.fork());
}
if (infos > 3)
{
sourceBaseInfo = readRevisionAvailabilityInfo(in, monitor.fork());
}
}
finally
{
monitor.done();
}
}
private CDORevisionAvailabilityInfo readRevisionAvailabilityInfo(CDODataInput in, OMMonitor monitor) throws IOException
{
if (in.readBoolean())
{
CDOBranchPoint branchPoint = in.readCDOBranchPoint();
CDORevisionAvailabilityInfo info = new CDORevisionAvailabilityInfo(branchPoint);
int size = in.readXInt();
monitor.begin(size);
try
{
for (int i = 0; i < size; i++)
{
CDOID id = in.readCDOID();
info.getAvailableRevisions().put(id, null);
monitor.worked();
}
return info;
}
finally
{
monitor.done();
}
}
auto = true;
return new CDORevisionAvailabilityInfo(CDOBranchUtil.AUTO_BRANCH_POINT);
}
@Override
protected void responding(CDODataOutput out, OMMonitor monitor) throws Exception
{
monitor.begin(2 + infos);
try
{
InternalRepository repository = getRepository();
MergeDataResult result = repository.getMergeData2(targetInfo, sourceInfo, targetBaseInfo, sourceBaseInfo, monitor.fork());
Set<CDOID> targetIDs = result.getTargetIDs();
Set<CDOID> targetAndSourceIDs = new HashSet<CDOID>();
Set<CDOID> sourceIDs = result.getSourceIDs();
// Write IDs of objects that are changed only in target.
for (CDOID id : targetIDs)
{
if (sourceIDs.remove(id))
{
targetAndSourceIDs.add(id);
}
else
{
out.writeCDOID(id);
}
}
out.writeCDOID(null);
// Write IDs of objects that are changed in both target and source.
for (CDOID id : targetAndSourceIDs)
{
out.writeCDOID(id);
}
out.writeCDOID(null);
// Write IDs of objects that are changed only in source.
for (CDOID id : sourceIDs)
{
out.writeCDOID(id);
}
out.writeCDOID(null);
monitor.worked();
if (auto)
{
out.writeCDOBranchPoint(targetBaseInfo.getBranchPoint());
if (targetBaseInfo.getBranchPoint().equals(sourceBaseInfo.getBranchPoint()))
{
out.writeBoolean(false);
infos = 3;
}
else
{
out.writeBoolean(true);
out.writeCDOBranchPoint(sourceBaseInfo.getBranchPoint());
}
}
Set<CDORevisionKey> writtenRevisions = new HashSet<CDORevisionKey>();
writeRevisionAvailabilityInfo(out, targetInfo, writtenRevisions, monitor.fork());
writeRevisionAvailabilityInfo(out, sourceInfo, writtenRevisions, monitor.fork());
if (infos > 2)
{
writeRevisionAvailabilityInfo(out, targetBaseInfo, writtenRevisions, monitor.fork());
}
if (infos > 3)
{
writeRevisionAvailabilityInfo(out, sourceBaseInfo, writtenRevisions, monitor.fork());
}
CDOBranchUtil.writeBranchPointOrNull(out, result.getResultBase());
}
finally
{
monitor.done();
}
}
private void writeRevisionAvailabilityInfo(final CDODataOutput out, CDORevisionAvailabilityInfo info, Set<CDORevisionKey> writtenRevisions, OMMonitor monitor)
throws IOException
{
Collection<CDORevisionKey> revisions = info.getAvailableRevisions().values();
for (Iterator<CDORevisionKey> it = revisions.iterator(); it.hasNext();)
{
CDORevisionKey key = it.next();
if (key == null)
{
it.remove();
}
}
int size = revisions.size();
out.writeXInt(size);
monitor.begin(size);
try
{
for (CDORevisionKey revision : revisions)
{
CDORevisionKey key = CDORevisionUtil.copyRevisionKey(revision);
if (writtenRevisions.add(key))
{
out.writeBoolean(true);
out.writeCDORevision((CDORevision)revision, CDORevision.UNCHUNKED); // Exposes revision to client side
}
else
{
out.writeBoolean(false);
out.writeCDORevisionKey(key);
}
monitor.worked();
}
}
finally
{
monitor.done();
}
}
}
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