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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:
* Simon McDuff - initial API and implementation
* Eike Stepper - maintenance
**************************************************************************/
package org.eclipse.emf.cdo.internal.server;
import org.eclipse.emf.cdo.internal.protocol.model.CDOPackageImpl;
import org.eclipse.emf.cdo.internal.protocol.revision.CDORevisionImpl;
import org.eclipse.emf.cdo.internal.protocol.revision.delta.CDORevisionDeltaImpl;
import org.eclipse.emf.cdo.protocol.CDOID;
import org.eclipse.emf.cdo.protocol.model.CDOClassRef;
import org.eclipse.emf.cdo.protocol.model.CDOFeature;
import org.eclipse.emf.cdo.protocol.model.CDOPackageInfo;
import org.eclipse.emf.cdo.protocol.revision.CDODuplicateRevisionException;
import org.eclipse.emf.cdo.protocol.revision.CDORevision;
import org.eclipse.emf.cdo.server.ISession;
import org.eclipse.emf.cdo.server.IStoreChunkReader;
import org.eclipse.emf.cdo.server.IStoreReader;
import org.eclipse.emf.cdo.server.IStoreWriter;
import org.eclipse.emf.cdo.server.IView;
import org.eclipse.net4j.util.io.CloseableIterator;
import org.eclipse.net4j.util.transaction.ITransaction;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* @author Simon McDuff
*/
public class MEMStoreAccessor extends StoreAccessor implements IStoreReader, IStoreWriter
{
List<CDORevisionImpl> listToCommit = new ArrayList<CDORevisionImpl>();
public MEMStoreAccessor(MEMStore store, ISession session)
{
super(store, session);
}
public MEMStoreAccessor(MEMStore store, IView view)
{
super(store, view);
}
@Override
public MEMStore getStore()
{
return (MEMStore)super.getStore();
}
public IStoreChunkReader createChunkReader(CDORevision revision, CDOFeature feature)
{
return new MEMStoreChunkReader(this, revision, feature);
}
public Collection<CDOPackageInfo> readPackageInfos()
{
return Collections.emptySet();
}
public void readPackage(CDOPackageImpl cdoPackage)
{
throw new UnsupportedOperationException();
}
public CloseableIterator<CDOID> readObjectIDs(boolean withTypes)
{
throw new UnsupportedOperationException();
}
public CDOClassRef readObjectType(CDOID id)
{
throw new UnsupportedOperationException();
}
public CDORevision readRevision(CDOID id, int referenceChunk)
{
CDORevisionImpl revStore = (CDORevisionImpl)getStore().getRevision(id);
CDORevisionImpl newRevision = new CDORevisionImpl(this.getStore().getRepository().getRevisionManager(), revStore
.getCDOClass(), revStore.getID());
newRevision.setResourceID(revStore.getResourceID());
for (CDOFeature feature : revStore.getCDOClass().getAllFeatures())
{
if (feature.isMany())
{
newRevision.setListSize(feature, revStore.getList(feature).size());
for (int i = 0; i < referenceChunk; i++)
{
newRevision.getList(feature).set(i, revStore.get(feature, i));
}
}
}
return newRevision;
}
public CDORevision readRevisionByTime(CDOID id, int referenceChunk, long timeStamp)
{
throw new UnsupportedOperationException();
}
public CDORevision readRevisionByVersion(CDOID id, int referenceChunk, int version)
{
throw new UnsupportedOperationException();
}
public CDOID readResourceID(String path)
{
throw new UnsupportedOperationException();
}
public String readResourcePath(CDOID id)
{
throw new UnsupportedOperationException();
}
public void writePackages(CDOPackageImpl... cdoPackages)
{
}
public void writeRevision(CDORevisionImpl revision)
{
getStore().addRevision(revision);
}
@Override
public void writeRevisionDelta(CDORevisionDeltaImpl delta)
{
CDORevisionImpl revision2 = (CDORevisionImpl)getStore().getRevision(delta.getID());
if (delta.getOriginVersion() != revision2.getVersion())
{
throw new CDODuplicateRevisionException(revision2);
}
CDORevisionImpl newRevision = new CDORevisionImpl(revision2);
delta.applyChanges(newRevision);
listToCommit.add(newRevision);
}
@Override
public void release()
{
for (CDORevisionImpl rev : listToCommit)
getStore().addRevision(rev);
}
public void rollback(IView view, ITransaction<IStoreWriter> storeTransaction)
{
listToCommit.clear();
}
}
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