/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/search/trunk/search-impl/impl/src/java/org/sakaiproject/search/optimize/impl/OptimizeIndexOperation.java $
* $Id: OptimizeIndexOperation.java 105078 2012-02-24 23:00:38Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009 The Sakai Foundation
*
* Licensed under the Educational Community License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.opensource.org/licenses/ECL-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**********************************************************************************/
package org.sakaiproject.search.optimize.impl;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.search.journal.api.JournalErrorException;
import org.sakaiproject.search.journal.api.JournalExhausetedException;
import org.sakaiproject.search.journal.api.JournaledObject;
import org.sakaiproject.search.journal.api.ManagementOperation;
import org.sakaiproject.search.optimize.api.NoOptimizationRequiredException;
import org.sakaiproject.search.transaction.api.IndexTransactionException;
/**
* Performs an optimize operation using an OptimizIndexManager to manage the
* 2PC.
*
* @author ieb
*/
public class OptimizeIndexOperation implements ManagementOperation
{
private static final Log log = LogFactory.getLog(OptimizeIndexOperation.class);
/**
* The journaled object which is being optimized
*/
private JournaledObject journaledObject;
/**
* The manager that performs the optimization
*/
private OptimizeIndexManager optimizeUpdateManager;
public void destroy()
{
}
public void init()
{
}
/**
* @see org.sakaiproject.search.journal.api.ManagementOperation#runOnce()
*/
public void runOnce()
{
/*
* Run the optimizer transaction once
*/
if (journaledObject.aquireUpdateLock())
{
log.debug("Now Locked Journaled savePoint is "
+ journaledObject.getLastJournalEntry());
try
{
try
{
IndexOptimizeTransactionImpl optimizeUpdateTransaction = null;
try
{
Map<String, Object> m = new HashMap<String, Object>();
optimizeUpdateTransaction = (IndexOptimizeTransactionImpl) optimizeUpdateManager
.openTransaction(m);
optimizeUpdateTransaction.prepare();
optimizeUpdateTransaction.commit();
log.debug("Optimize complete ");
}
catch (JournalErrorException jex)
{
if (optimizeUpdateTransaction != null)
{
log.warn("Failed to complete Optimize ", jex);
}
else
{
log.warn("Failed to start merge operation ", jex);
}
try
{
if (optimizeUpdateTransaction != null) {
optimizeUpdateTransaction.rollback();
}
}
catch (Exception ex)
{
log.warn("Failed to rollback transaction ", ex);
}
}
catch (NoOptimizationRequiredException nop)
{
log.debug("No Merge Performed " + nop.getMessage());
}
catch (IndexTransactionException iupex)
{
log.warn("Failed to complete optimize ", iupex);
try
{
optimizeUpdateTransaction.rollback();
}
catch (Exception ex)
{
log.warn("Failed to rollback transaction ", ex);
}
}
finally
{
try
{
if (optimizeUpdateTransaction != null)
optimizeUpdateTransaction.close();
}
catch (Exception ex)
{
log.debug(ex);
}
}
}
catch (JournalExhausetedException ex)
{
if (log.isDebugEnabled())
{
log.debug("No More Jounral Entries ", ex);
}
}
}
finally
{
journaledObject.releaseUpdateLock();
}
}
else
{
log.warn("No Lock, index update abandoned");
}
}
/**
* @return the journaledObject
*/
public JournaledObject getJournaledObject()
{
return journaledObject;
}
/**
* @param journaledObject
* the journaledObject to set
*/
public void setJournaledObject(JournaledObject journaledObject)
{
this.journaledObject = journaledObject;
}
/**
* @return the optimizeUpdateManager
*/
public OptimizeIndexManager getOptimizeUpdateManager()
{
return optimizeUpdateManager;
}
/**
* @param optimizeUpdateManager
* the optimizeUpdateManager to set
*/
public void setOptimizeUpdateManager(OptimizeIndexManager optimizeUpdateManager)
{
this.optimizeUpdateManager = optimizeUpdateManager;
}
}