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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
* Eike Stepper - maintenance
**************************************************************************/
package org.eclipse.emf.cdo.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.id.CDOIDAndVersion;
import org.eclipse.emf.cdo.common.id.CDOIDAndVersionAndBranch;
import org.eclipse.emf.cdo.common.id.CDOIDUtil;
import org.eclipse.emf.cdo.common.io.CDODataInput;
import org.eclipse.emf.cdo.common.io.CDODataOutput;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.internal.net4j.bundle.OM;
import org.eclipse.emf.cdo.internal.net4j.messages.Messages;
import org.eclipse.emf.cdo.spi.common.branch.CDOBranchUtil;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDORevisionManager;
import org.eclipse.emf.cdo.transaction.CDORefreshContext;
import org.eclipse.emf.internal.cdo.transaction.CDORefreshContextImpl;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
/**
* @author Simon McDuff
* @since 2.0
*/
public abstract class AbstractSyncRevisionsRequest extends CDOClientRequest<Collection<CDORefreshContext>>
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, AbstractSyncRevisionsRequest.class);
protected Map<CDOID, CDOIDAndVersionAndBranch> idAndVersionAndBranches;
protected int referenceChunk;
public AbstractSyncRevisionsRequest(CDOClientProtocol protocol, short signalID,
Map<CDOID, CDOIDAndVersionAndBranch> idAndVersionAndBranches, int referenceChunk)
{
super(protocol, signalID);
this.idAndVersionAndBranches = idAndVersionAndBranches;
this.referenceChunk = referenceChunk;
}
@Override
protected void requesting(CDODataOutput out) throws IOException
{
if (TRACER.isEnabled())
{
TRACER.trace("Synchronization " + idAndVersionAndBranches.size() + " objects"); //$NON-NLS-1$ //$NON-NLS-2$
}
out.writeInt(referenceChunk);
out.writeInt(idAndVersionAndBranches.size());
for (CDOIDAndVersionAndBranch idAndVersionAndBranch : idAndVersionAndBranches.values())
{
out.writeCDOIDAndVersionAndBranch(idAndVersionAndBranch);
}
}
@Override
protected Collection<CDORefreshContext> confirming(CDODataInput in) throws IOException
{
InternalCDORevisionManager revisionManager = getSession().getRevisionManager();
/*
* Comparator<CDOBranchPoint> comparator = new Comparator<CDOBranchPoint>() { public int compare(CDOBranchPoint bp1,
* CDOBranchPoint bp2) { long diff = bp1.getTimeStamp() - bp2.getTimeStamp(); return diff == 0 ? 0 : diff > 0 ? 1 :
* -1; } }; Map<CDOBranchPoint, CDORefreshContext> refreshContexts = new TreeMap<CDOBranchPoint,
* CDORefreshContext>(comparator);
*/
Map<Long, CDORefreshContext> refreshContexts = new TreeMap<Long, CDORefreshContext>();
int dirtyCount = in.readInt();
for (int i = 0; i < dirtyCount; i++)
{
CDORevision revision = in.readCDORevision();
long oldRevised = in.readLong();
CDOBranchPoint branchPoint = CDOBranchUtil.createBranchPoint(revision.getBranch(), oldRevised);
CDOIDAndVersionAndBranch idAndVersionAndBranch = idAndVersionAndBranches.get(revision.getID());
if (idAndVersionAndBranch == null)
{
throw new IllegalStateException(MessageFormat.format(
Messages.getString("SyncRevisionsRequest.2"), revision.getID())); //$NON-NLS-1$
}
CDORefreshContext refreshContext = getRefreshContext(refreshContexts, branchPoint);
Set<CDOIDAndVersion> dirtyObjects = refreshContext.getDirtyObjects();
dirtyObjects.add(CDOIDUtil.createIDAndVersion(idAndVersionAndBranch.getID(), idAndVersionAndBranch.getVersion()));
revisionManager.addRevision(revision);
}
if (TRACER.isEnabled())
{
TRACER.trace("Synchronization received " + dirtyCount + " dirty objects"); //$NON-NLS-1$ //$NON-NLS-2$
}
int detachedCount = in.readInt();
for (int i = 0; i < detachedCount; i++)
{
CDOID id = in.readCDOID();
CDOBranchPoint branchPoint = in.readCDOBranchPoint();
CDORefreshContext refreshContext = getRefreshContext(refreshContexts, branchPoint);
Collection<CDOID> detachedObjects = refreshContext.getDetachedObjects();
detachedObjects.add(id);
}
if (TRACER.isEnabled())
{
TRACER.trace("Synchronization received " + detachedCount + " detached objects"); //$NON-NLS-1$ //$NON-NLS-2$
}
// Replace the collections with unmodifiable ones
for (CDORefreshContext refreshContext : refreshContexts.values())
{
Set<CDOIDAndVersion> dirtyObjects = refreshContext.getDirtyObjects();
Collection<CDOID> detachedObjects = refreshContext.getDetachedObjects();
dirtyObjects = Collections.unmodifiableSet(dirtyObjects);
detachedObjects = Collections.unmodifiableCollection(detachedObjects);
((CDORefreshContextImpl)refreshContext).setDirtyObjects(dirtyObjects);
((CDORefreshContextImpl)refreshContext).setDetachedObjects(detachedObjects);
}
return Collections.unmodifiableCollection(refreshContexts.values());
}
private CDORefreshContext getRefreshContext(Map<Long, CDORefreshContext> refreshContexts, CDOBranchPoint branchPoint)
{
long timestamp = branchPoint.getTimeStamp();
CDORefreshContext result = refreshContexts.get(timestamp);
if (result == null)
{
result = new CDORefreshContextImpl(branchPoint);
refreshContexts.put(timestamp, result);
}
return result;
}
}
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