/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.util;
import org.exoplatform.services.jcr.core.nodetype.NodeTypeDataManager;
import org.exoplatform.services.jcr.dataflow.ItemState;
import org.exoplatform.services.jcr.dataflow.PlainChangesLog;
import org.exoplatform.services.jcr.dataflow.PlainChangesLogImpl;
import org.exoplatform.services.jcr.datamodel.Identifier;
import org.exoplatform.services.jcr.datamodel.NodeData;
import org.exoplatform.services.jcr.impl.Constants;
import org.exoplatform.services.jcr.impl.core.NodeImpl;
import org.exoplatform.services.jcr.impl.core.PropertyImpl;
import org.exoplatform.services.jcr.impl.core.SessionImpl;
import org.exoplatform.services.jcr.impl.dataflow.ItemDataRemoveVisitor;
import org.exoplatform.services.jcr.impl.dataflow.TransientPropertyData;
import org.exoplatform.services.jcr.impl.dataflow.TransientValueData;
import org.exoplatform.services.jcr.impl.xml.ItemDataKeeperAdapter;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import java.io.IOException;
import java.io.InputStream;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
/**
* Created by The eXo Platform SAS.
*
* @author <a href="mailto:Sergey.Kabashnyuk@gmail.com">Sergey Kabashnyuk</a>
* @version $Id: $
*/
public class VersionHistoryImporter
{
/**
* Class logger.
*/
private static final Log LOG = ExoLogger.getLogger(VersionHistoryImporter.class);
/**
* Versioned node.
*/
private final NodeImpl versionableNode;
/**
* Version history data.
*/
private final InputStream versionHistoryStream;
/**
* User session.
*/
private final SessionImpl userSession;
/**
* Node-type data manager.
*/
private final NodeTypeDataManager nodeTypeDataManager;
/**
* Data keeper.
*/
private final ItemDataKeeperAdapter dataKeeper;
/**
* jcr:baseVersion - uuid.
*/
private final String baseVersionUuid;
/**
* predecessors uuids.
*/
private final String[] predecessors;
/**
* Version history - uuid.
*/
private final String versionHistory;
/**
* VersionHistoryImporter constructor.
*
* @param versionableNode - versionable node.
* @param versionHistoryStream - Version history data.
* @param baseVersionUuid - jcr:baseVersion - uuid.
* @param predecessors - predecessors uuids.
* @param versionHistory - Version history - uuid
* @throws RepositoryException -if an error occurs while getting
* NodeTypesHolder.
*/
public VersionHistoryImporter(NodeImpl versionableNode, InputStream versionHistoryStream, String baseVersionUuid,
String[] predecessors, String versionHistory) throws RepositoryException
{
super();
this.versionableNode = versionableNode;
this.versionHistoryStream = versionHistoryStream;
this.baseVersionUuid = baseVersionUuid;
this.predecessors = predecessors;
this.versionHistory = versionHistory;
this.userSession = versionableNode.getSession();
this.nodeTypeDataManager = userSession.getWorkspace().getNodeTypesHolder();
this.dataKeeper = new ItemDataKeeperAdapter(userSession.getTransientNodesManager());
}
/**
* Do import.
*
* @throws RepositoryException -if an error occurs while importing.
* @throws IOException -i f an error occurs while importing.
*/
public void doImport() throws RepositoryException, IOException
{
String path = versionableNode.getVersionHistory().getParent().getPath();
NodeData versionable = (NodeData)versionableNode.getData();
// ----- VERSIONABLE properties -----
// jcr:versionHistory
TransientPropertyData vh =
TransientPropertyData.createPropertyData(versionable, Constants.JCR_VERSIONHISTORY, PropertyType.REFERENCE,
false);
vh.setValue(new TransientValueData(new Identifier(versionHistory)));
// jcr:baseVersion
TransientPropertyData bv =
TransientPropertyData
.createPropertyData(versionable, Constants.JCR_BASEVERSION, PropertyType.REFERENCE, false);
bv.setValue(new TransientValueData(new Identifier(baseVersionUuid)));
// jcr:predecessors
TransientPropertyData pd =
TransientPropertyData
.createPropertyData(versionable, Constants.JCR_PREDECESSORS, PropertyType.REFERENCE, true);
for (int i = 0; i < predecessors.length; i++)
{
pd.setValue(new TransientValueData(new Identifier(predecessors[i])));
}
PlainChangesLog changesLog = new PlainChangesLogImpl();
RemoveVisitor rv = new RemoveVisitor();
rv.visit((NodeData)((NodeImpl)versionableNode.getVersionHistory()).getData());
changesLog.addAll(rv.getRemovedStates());
changesLog.add(ItemState.createAddedState(vh));
changesLog.add(ItemState.createAddedState(bv));
changesLog.add(ItemState.createAddedState(pd));
// remove version properties to avoid referential integrety check
PlainChangesLog changesLogDeltete = new PlainChangesLogImpl();
changesLogDeltete.add(ItemState.createDeletedState(((PropertyImpl)versionableNode
.getProperty("jcr:versionHistory")).getData()));
changesLogDeltete.add(ItemState.createDeletedState(((PropertyImpl)versionableNode.getProperty("jcr:baseVersion"))
.getData()));
changesLogDeltete.add(ItemState
.createDeletedState(((PropertyImpl)versionableNode.getProperty("jcr:predecessors")).getData()));
dataKeeper.save(changesLogDeltete);
userSession.save();
// remove version history
dataKeeper.save(changesLog);
// import new version history
userSession.getWorkspace().importXML(path, versionHistoryStream, 0);
userSession.save();
}
/**
* Remover helper.
*
* @author sj
*/
protected class RemoveVisitor extends ItemDataRemoveVisitor
{
/**
* Default constructor.
*
* @throws RepositoryException - exception.
*/
RemoveVisitor() throws RepositoryException
{
super(userSession.getTransientNodesManager(), null,
// userSession.getWorkspace().getNodeTypeManager(),
nodeTypeDataManager, userSession.getAccessManager(), userSession.getUserState());
}
/**
* {@inheritDoc}
*/
protected void validateReferential(NodeData node) throws RepositoryException
{
// no REFERENCE validation here
}
};
}