/*
* JBoss, Home of Professional Open Source
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
/*
* Copyright (C) 2005,
*
* Arjuna Technologies Limited,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: TxLogWritePersistenceRecord.java 2342 2006-03-30 13:06:17Z $
*/
package com.arjuna.ats.internal.arjuna;
import com.arjuna.ats.arjuna.logging.tsLogger;
import com.arjuna.ats.arjuna.logging.FacilityCode;
import com.arjuna.ats.arjuna.PersistenceRecord;
import com.arjuna.ats.arjuna.ArjunaNames;
import com.arjuna.ats.arjuna.ObjectType;
import com.arjuna.ats.arjuna.StateManager;
import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.ats.arjuna.coordinator.*;
import com.arjuna.ats.arjuna.objectstore.*;
import com.arjuna.ats.arjuna.exceptions.*;
import com.arjuna.ats.arjuna.state.*;
import com.arjuna.ats.arjuna.gandiva.ClassName;
/**
*/
public class TxLogWritePersistenceRecord extends PersistenceRecord
{
public TxLogWritePersistenceRecord (OutputObjectState state, ObjectStore store, StateManager sm)
{
super(state, store, sm);
}
public int typeIs ()
{
return RecordType.TXLOG_PERSISTENCE;
}
public ClassName className ()
{
return ArjunaNames.Implementation_AbstractRecord_TxLogPersistenceRecord();
}
/**
* commit the state saved during the prepare phase.
*/
public int topLevelCommit ()
{
boolean result = false;
LogWriteStateManager sm = null;
boolean writeToLog = true;
try
{
sm = (LogWriteStateManager) super.objectAddr;
writeToLog = sm.writeOptimisation();
}
catch (ClassCastException ex)
{
writeToLog = false;
}
if (store != null)
{
try
{
if (shadowMade)
{
result = store.commit_state(order(), super.getTypeOfObject());
if (!result)
{
if (tsLogger.arjLoggerI18N.isWarnEnabled())
{
tsLogger.arjLoggerI18N.warn("com.arjuna.ats.arjuna.PersistenceRecord_2", new Object[] {order()});
}
}
}
else
{
if (topLevelState != null)
{
if (!writeToLog)
result = store.write_committed(order(), super.getTypeOfObject(), topLevelState);
else
result = true;
}
}
}
catch (ObjectStoreException e)
{
result = false;
}
}
else
{
}
if (!result)
{
}
super.forgetAction(true);
return ((result) ? TwoPhaseOutcome.FINISH_OK : TwoPhaseOutcome.FINISH_ERROR);
}
/**
* topLevelPrepare attempts to save the object.
* It will either do this in the action intention list or directly
* in the object store by using the 'deactivate' function of the object
* depending upon the size of the state.
* To ensure that objects are correctly hidden while they are in an
* uncommitted state if we use the abbreviated protocol then we write an
* EMPTY object state as the shadow state - THIS MUST NOT BE COMMITTED.
* Instead we write_committed the one saved in the intention list.
* If the store cannot cope with being given an empty state we revert to
* the old protocol.
*/
public int topLevelPrepare ()
{
int result = TwoPhaseOutcome.PREPARE_NOTOK;
StateManager sm = super.objectAddr;
LogWriteStateManager lwsm = null;
boolean writeToLog = true;
try
{
lwsm = (LogWriteStateManager) sm;
writeToLog = lwsm.writeOptimisation();
}
catch (ClassCastException ex)
{
writeToLog = false;
}
if ((sm != null) && (store != null))
{
topLevelState = new OutputObjectState(sm.get_uid(), sm.type());
if (writeToLog || (!store.fullCommitNeeded() &&
(sm.save_state(topLevelState, ObjectType.ANDPERSISTENT)) &&
(topLevelState.size() <= PersistenceRecord.MAX_OBJECT_SIZE)))
{
if (PersistenceRecord.classicPrepare)
{
OutputObjectState dummy = new OutputObjectState(Uid.nullUid(), null);
/*
* Write an empty shadow state to the store to indicate
* one exists, and to prevent bogus activation in the case
* where crash recovery hasn't run yet.
*/
try
{
store.write_uncommitted(sm.get_uid(), sm.type(), dummy);
result = TwoPhaseOutcome.PREPARE_OK;
}
catch (ObjectStoreException e)
{
tsLogger.arjLoggerI18N.warn("com.arjuna.ats.arjuna.PersistenceRecord_21",e);
}
dummy = null;
}
else
{
result = TwoPhaseOutcome.PREPARE_OK;
}
}
else
{
if (sm.deactivate(store.getStoreName(), false))
{
shadowMade = true;
result = TwoPhaseOutcome.PREPARE_OK;
}
else
{
if (tsLogger.arjLoggerI18N.isWarnEnabled())
tsLogger.arjLoggerI18N.warn("com.arjuna.ats.arjuna.PersistenceRecord_7");
}
}
}
else
{
if (tsLogger.arjLoggerI18N.isWarnEnabled())
tsLogger.arjLoggerI18N.warn("com.arjuna.ats.arjuna.PersistenceRecord_8");
}
return result;
}
public String type ()
{
return "/StateManager/AbstractRecord/RecoveryRecord/PersistenceRecord/TxLogPersistenceRecord";
}
public static AbstractRecord create ()
{
return new TxLogWritePersistenceRecord();
}
protected TxLogWritePersistenceRecord ()
{
super();
}
}