/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/search/trunk/search-impl/impl/src/java/org/sakaiproject/search/optimize/shared/impl/SharedFilesystemSaveTransactionListener.java $
* $Id: SharedFilesystemSaveTransactionListener.java 105078 2012-02-24 23:00:38Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008 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.shared.impl;
import org.sakaiproject.search.indexer.api.IndexJournalException;
import org.sakaiproject.search.indexer.api.IndexUpdateTransactionListener;
import org.sakaiproject.search.journal.api.JournalStorageState;
import org.sakaiproject.search.journal.impl.SharedFilesystemJournalStorage;
import org.sakaiproject.search.optimize.shared.api.JournalOptimizationTransaction;
import org.sakaiproject.search.transaction.api.IndexTransaction;
import org.sakaiproject.search.transaction.api.IndexTransactionException;
/**
* A transaction listener that connects to the journalManager and saves segments
*
* @author ieb
*/
public class SharedFilesystemSaveTransactionListener implements
IndexUpdateTransactionListener
{
private SharedFilesystemJournalStorage sharedFilesystemJournalStorage;
private long sharedSleep = 90000;
public void init()
{
}
public void destroy()
{
}
/**
* @throws IndexJournalException
* @see org.sakaiproject.search.transaction.api.TransactionListener#prepare(org.sakaiproject.search.indexer.api.IndexUpdateTransaction)
*/
public void prepare(IndexTransaction transaction) throws IndexJournalException
{
try
{
JournalOptimizationTransaction jtransaction = (JournalOptimizationTransaction) transaction;
String indexSpace = jtransaction.getWorkingSegment().getAbsolutePath();
long targetSavePoint = jtransaction.getTargetSavePoint();
JournalStorageState jss = sharedFilesystemJournalStorage.prepareSave(
indexSpace, targetSavePoint);
transaction.put(SharedFilesystemSaveTransactionListener.class.getName()
+ ".state", jss);
}
catch (Exception ex)
{
throw new IndexJournalException(
"Failed to save optimized Journaled Segments ", ex);
}
}
/**
* @see org.sakaiproject.search.transaction.api.TransactionListener#commit(org.sakaiproject.search.indexer.api.IndexUpdateTransaction)
*/
public void commit(IndexTransaction transaction) throws IndexTransactionException
{
try
{
JournalOptimizationTransaction jtransaction = (JournalOptimizationTransaction) transaction;
JournalStorageState jss = (JournalStorageState) transaction
.get(SharedFilesystemSaveTransactionListener.class.getName()
+ ".state");
sharedFilesystemJournalStorage.commitSave(jss);
try
{
System.err.println("============Sleeping for 90");
// sleep for 90s to make NFS happy
Thread.sleep(sharedSleep);
}
catch (Exception ex)
{
int x =1; // ignore
}
}
catch (Exception ex)
{
throw new IndexJournalException(
"Failed to retrieve Journaled Segments for processing ", ex);
}
}
/**
* @see org.sakaiproject.search.transaction.api.TransactionListener#open(org.sakaiproject.search.indexer.api.IndexUpdateTransaction)
*/
public void open(IndexTransaction transaction)
{
}
/**
* @see org.sakaiproject.search.transaction.api.TransactionListener#close(org.sakaiproject.search.transaction.api.IndexTransaction)
*/
public void close(IndexTransaction transaction) throws IndexTransactionException
{
transaction.clear(SharedFilesystemSaveTransactionListener.class.getName()
+ ".state");
}
/**
* @throws IndexJournalException
* @see org.sakaiproject.search.transaction.api.TransactionListener#rollback(org.sakaiproject.search.indexer.api.IndexUpdateTransaction)
*/
public void rollback(IndexTransaction transaction) throws IndexJournalException
{
try
{
JournalOptimizationTransaction jtransaction = (JournalOptimizationTransaction) transaction;
JournalStorageState jss = (JournalStorageState) transaction
.get(SharedFilesystemSaveTransactionListener.class.getName()
+ ".state");
sharedFilesystemJournalStorage.rollbackSave(jss);
try
{
// sleep for 90s to make NFS happy
Thread.sleep(sharedSleep);
}
catch (Exception ex)
{
int x = 1; //ignore
}
}
catch (Exception ex)
{
throw new IndexJournalException("Failed to rollback Journaled Segments ", ex);
}
}
/**
* @return the sharedFilesystemJournalStorage
*/
public SharedFilesystemJournalStorage getSharedFilesystemJournalStorage()
{
return sharedFilesystemJournalStorage;
}
/**
* @param sharedFilesystemJournalStorage
* the sharedFilesystemJournalStorage to set
*/
public void setSharedFilesystemJournalStorage(
SharedFilesystemJournalStorage sharedFilesystemJournalStorage)
{
this.sharedFilesystemJournalStorage = sharedFilesystemJournalStorage;
}
/**
* @return the sharedSleep
*/
public long getSharedSleep()
{
return sharedSleep;
}
/**
* @param sharedSleep the sharedSleep to set
*/
public void setSharedSleep(long sharedSleep)
{
this.sharedSleep = sharedSleep;
}
}