/*
* JBoss, Home of Professional Open Source
* Copyright 2007, 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.
*/
package org.jboss.jbossts.qa.ArjunaCore.LockManager.impl;
import com.arjuna.ats.arjuna.AtomicAction;
import com.arjuna.ats.arjuna.ObjectType;
import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.ats.arjuna.state.InputObjectState;
import com.arjuna.ats.arjuna.state.OutputObjectState;
import com.arjuna.ats.txoj.Lock;
import com.arjuna.ats.txoj.LockMode;
import com.arjuna.ats.txoj.LockResult;
import org.jboss.jbossts.qa.ArjunaCore.Utils.qautil;
import org.jboss.jbossts.qa.Utils.JVMStats;
/**
* Simple record used to test AtomicAction
*/
public class TXBasicLockRecord extends BasicLockRecord
{
public TXBasicLockRecord()
{
super(ObjectType.ANDPERSISTENT);
}
protected TXBasicLockRecord(Uid storeUid, int ot)
{
super(storeUid, ot);
}
public TXBasicLockRecord(int id)
{
super(ObjectType.ANDPERSISTENT);
mId = id;
}
public TXBasicLockRecord(Uid oldId)
{
super(oldId, ObjectType.ANDPERSISTENT);
}
public int increase()
{
return increase(0);
}
public int increase(int retry)
{
return increase(retry, 0);
}
private long timeOfLastWaiting = 0;
/**
* We will start a subtrancastion during the increase to see what effet this has.
*
* @return +1 if tx was committed, 0 if tx was not committed
*/
public int increase(int retry, int wait_time)
{
int returnValue = 0;
AtomicAction a = new AtomicAction();
a.begin();
try
{
int locking_result = LockResult.REFUSED;
int locking_attempt_count = 0;
do
{
locking_result = setlock(new Lock(LockMode.WRITE), retry, wait_time);
if (locking_result == LockResult.GRANTED)
{
mValue++;
}
else
{
locking_attempt_count++;
}
if (timeOfLastWaiting < (System.currentTimeMillis() - 15000))
{
System.out.println("Thread: [" + Thread.currentThread() + "]");
timeOfLastWaiting = System.currentTimeMillis();
}
}
while ((locking_result != LockResult.GRANTED) && (locking_attempt_count < mLimit));
if (locking_result != LockResult.GRANTED)
{
qautil.qadebug("trying to get lock for " + mLimit + "th time");
a.abort();
}
else
{
a.commit();
returnValue = 1;
}
}
catch (Exception e)
{
a.abort();
qautil.debug("exception in increase method ", e);
}
return returnValue;
}
/**
* Call to getValue with default value of 10 for retry time.
*/
public int getValue()
{
return getValue(1);
}
public int getValue(int retry)
{
return getValue(retry, 10);
}
public int getValue(int retry, int wait_time)
{
int return_value = 0;
AtomicAction a = new AtomicAction();
a.begin();
try
{
int locking_result = LockResult.REFUSED;
int locking_attempt_count = 0;
do
{
locking_result = setlock(new Lock(LockMode.READ), retry, wait_time);
if (locking_result == LockResult.GRANTED)
{
return_value = mValue;
}
else
{
locking_attempt_count++;
}
}
while ((locking_result != LockResult.GRANTED) && (locking_attempt_count < mLimit));
if (locking_result != LockResult.GRANTED)
{
qautil.qadebug("trying to get lock for " + mLimit + "th time");
}
a.commit();
}
catch (Exception e)
{
a.abort();
qautil.debug("exception in get method ", e);
}
return return_value;
}
/**
* Method used to check for any memory leaks.
*/
public int getMemory()
{
return (int) JVMStats.getMemory();
}
public boolean save_state(OutputObjectState objectState, int objectType)
{
super.save_state(objectState, objectType);
try
{
objectState.packInt(mValue);
return true;
}
catch (Exception exception)
{
qautil.debug("TXBasicLockRecord.save_state: ", exception);
return false;
}
}
public boolean restore_state(InputObjectState objectState, int objectType)
{
qautil.qadebug("restore state of " + this + " = " + mValue);
super.restore_state(objectState, objectType);
try
{
mValue = objectState.unpackInt();
return true;
}
catch (Exception exception)
{
qautil.debug("TXBasicLockRecord.restore_state: ", exception);
return false;
}
}
public String type()
{
return "/StateManager/LockManager/TXBasicLockRecord";
}
private int mValue = 0;
private int mLimit = 1000;
private int mId = 0;
}