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/*
* Copyright (c) 2010-2013 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.spi.common.commit;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.commit.CDOChangeSetData;
import org.eclipse.emf.cdo.common.commit.CDOCommitData;
import org.eclipse.emf.cdo.common.id.CDOID;
import org.eclipse.emf.cdo.common.model.CDOPackageUnit;
import org.eclipse.emf.cdo.common.revision.CDOIDAndVersion;
import org.eclipse.emf.cdo.common.revision.CDORevisionKey;
import org.eclipse.emf.cdo.common.revision.delta.CDOFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOListFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDORevisionDelta;
import org.eclipse.emf.cdo.internal.common.commit.CDOCommitDataImpl;
import org.eclipse.emf.cdo.internal.common.commit.CDOCommitInfoManagerImpl;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDORevision;
import org.eclipse.emf.ecore.EStructuralFeature;
import java.io.PrintStream;
import java.text.MessageFormat;
import java.util.List;
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Eike Stepper
* @since 3.0
*/
public final class CDOCommitInfoUtil
{
private CDOCommitInfoUtil()
{
}
/**
* @since 4.2
*/
public static InternalCDOCommitInfoManager createCommitInfoManager(boolean caching)
{
return new CDOCommitInfoManagerImpl(caching);
}
public static InternalCDOCommitInfoManager createCommitInfoManager()
{
return createCommitInfoManager(false);
}
/**
* @since 4.2
*/
public static CDOCommitData createCommitData(List<CDOPackageUnit> newPackageUnits, List<CDOIDAndVersion> newObjects, List<CDORevisionKey> changedObjects,
List<CDOIDAndVersion> detachedObjects)
{
return new CDOCommitDataImpl(newPackageUnits, newObjects, changedObjects, detachedObjects);
}
/**
* @since 4.2
*/
public static long encodeCount(int count)
{
long timeStamp = count;
if (count < 0)
{
timeStamp = -timeStamp + Integer.MAX_VALUE;
}
return -timeStamp;
}
/**
* @since 4.2
*/
public static int decodeCount(long timeStamp)
{
if (timeStamp < CDOBranchPoint.UNSPECIFIED_DATE)
{
timeStamp = -timeStamp;
if (timeStamp > Integer.MAX_VALUE)
{
return (int)(Integer.MAX_VALUE - timeStamp);
}
return (int)timeStamp;
}
return Integer.MAX_VALUE;
}
/**
* @since 4.0
*/
public static void dump(PrintStream out, CDOChangeSetData changeSetData)
{
for (CDOIDAndVersion key : changeSetData.getNewObjects())
{
out.println(" + " + key);
if (key instanceof InternalCDORevision)
{
InternalCDORevision revision = (InternalCDORevision)key;
for (EStructuralFeature feature : revision.getClassInfo().getAllPersistentFeatures())
{
Object value = revision.getValue(feature);
dumpFeature(out, feature, value);
}
}
}
for (CDORevisionKey key : changeSetData.getChangedObjects())
{
CDORevisionDelta delta = (CDORevisionDelta)key;
String name = delta.getEClass().getName();
CDOID id = delta.getID();
int branch = delta.getBranch().getID();
int version = delta.getVersion();
out.println(MessageFormat.format(" * {0}@{1}:{2}v{3}", name, id, branch, version));
dumpFeatureDeltas(out, delta.getFeatureDeltas());
}
for (CDOIDAndVersion key : changeSetData.getDetachedObjects())
{
out.println(" - " + key);
}
}
private static void dumpFeatureDeltas(PrintStream out, List<CDOFeatureDelta> featureDeltas)
{
for (CDOFeatureDelta featureDelta : featureDeltas)
{
if (featureDelta instanceof CDOListFeatureDelta)
{
CDOListFeatureDelta list = (CDOListFeatureDelta)featureDelta;
dumpFeatureDeltas(out, list.getListChanges());
}
else
{
dumpFeature(out, featureDelta.getFeature(), featureDelta);
}
}
}
private static void dumpFeature(PrintStream out, EStructuralFeature feature, Object value)
{
out.println(" " + feature.getName() + " = " + value);
}
}
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