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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either
* the GNU General Public License Version 2 only ("GPL") or
* the Common Development and Distribution License("CDDL")
* (collectively, the "License"). You may not use this file
* except in compliance with the License. You can obtain a copy
* of the License at www.sun.com/CDDL or at COPYRIGHT. See the
* License for the specific language governing permissions and
* limitations under the License. When distributing the software,
* include this License Header Notice in each file and include
* the License file at /legal/license.txt. If applicable, add the
* following below the License Header, with the fields enclosed
* by brackets [] replaced by your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by
* only the CDDL or only the GPL Version 2, indicate your
* decision by adding "[Contributor] elects to include this
* software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice
* of license, a recipient has the option to distribute your
* version of this file under either the CDDL, the GPL Version
* 2 or to extend the choice of license to its licensees as
* provided above. However, if you add GPL Version 2 code and
* therefore, elected the GPL Version 2 license, then the
* option applies only if the new code is made subject to such
* option by the copyright holder.
*/
package com.sun.apoc.daemon.transaction;
import com.sun.apoc.daemon.apocd.*;
import com.sun.apoc.daemon.localdatabase.*;
import com.sun.apoc.daemon.messaging.*;
import com.sun.apoc.daemon.misc.*;
import java.util.*;
public class TransactionFactory
{
private static TransactionFactory sInstance;
private static final Transaction[] sTransactionModel =
new Transaction[ 0 ];
//private static long sTransactionTimeout = 30000;
private static long sTransactionTimeout = 10000;
private final HashSet mTransactions = new HashSet();
private final DaemonTimerTask mTransactionInterrupter =
new DaemonTimerTask( new TransactionInterrupter() );
public void addTransaction( final Transaction inTransaction )
{
synchronized( mTransactions )
{
if ( mTransactions.size() == 0 )
{
mTransactionInterrupter.setPeriod( sTransactionTimeout );
}
mTransactions.add( inTransaction );
}
}
public ChangeDetectTransaction createChangeDetectTransaction(
final ClientManager inClientManager,
final Cache inCache,
final UpdateAggregator inAggregator )
{
return new ChangeDetectTransaction( inClientManager,
inCache, inAggregator );
}
public GarbageCollectTransaction createGarbageCollectTransaction(
final Database inDatabase )
{
return new GarbageCollectTransaction( inDatabase );
}
public Transaction createTransaction( final Client inClient,
final Message inMessage )
{
Transaction theTransaction = null;
switch ( inMessage.getName() )
{
case APOCSymbols.sSymReqRead:
theTransaction = new ReadTransaction( inClient, inMessage );
break;
case APOCSymbols.sSymReqAddListener:
theTransaction =
new AddListenerTransaction( inClient, inMessage );
break;
case APOCSymbols.sSymReqCreateSession:
theTransaction =
new CreateSessionTransaction( inClient, inMessage );
break;
case APOCSymbols.sSymReqCreateSessionExt:
theTransaction =
new CreateSessionExtTransaction( inClient, inMessage );
break;
case APOCSymbols.sSymReqDestroySession:
theTransaction =
new DestroySessionTransaction( inClient, inMessage );
break;
case APOCSymbols.sSymReqRemoveListener:
theTransaction =
new RemoveListenerTransaction( inClient, inMessage );
break;
case APOCSymbols.sSymReqList:
theTransaction =
new ListTransaction( inClient, inMessage );
break;
default:
break;
}
return theTransaction;
}
public static TransactionFactory getInstance()
{
if ( sInstance == null )
{
sInstance = new TransactionFactory();
}
return sInstance;
}
public void removeTransaction( final Transaction inTransaction )
{
synchronized( mTransactions )
{
if ( mTransactions.size() == 1 )
{
mTransactionInterrupter.cancel();
}
mTransactions.remove( inTransaction );
}
}
private TransactionFactory(){}
class TransactionInterrupter implements Runnable
{
public void run()
{
synchronized( mTransactions )
{
Transaction[] theTransactions = null;
if ( mTransactions.size() > 0 )
{
theTransactions =
( Transaction[] )mTransactions.toArray( sTransactionModel);
}
if ( theTransactions != null && theTransactions.length > 0 )
{
for ( int theIndex = 0;
theIndex < theTransactions.length;
++ theIndex )
{
if ( theTransactions[ theIndex ].getDuration() >
sTransactionTimeout )
{
theTransactions[ theIndex ].interrupt();
removeTransaction( theTransactions[ theIndex ] );
}
}
}
}
}
}
}
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