/*
* 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) 2001, 2002,
*
* Hewlett-Packard Arjuna Labs,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: tx.java 2342 2006-03-30 13:06:17Z $
*/
package com.arjuna.ats.jts.tx;
import com.arjuna.ats.internal.jts.OTSImpleManager;
import com.arjuna.ats.internal.jts.orbspecific.CurrentImple;
import com.arjuna.ats.internal.arjuna.template.*;
import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.ats.jts.*;
import org.omg.CosTransactions.*;
import com.arjuna.ArjunaOTS.*;
import java.util.Hashtable;
import org.omg.CORBA.TRANSACTION_ROLLEDBACK;
/*
* @author Mark Little (mark_little@hp.com)
* @version $Id: tx.java 2342 2006-03-30 13:06:17Z $
* @since JTS 1.0.
*/
public class tx
{
/**
* These values are pretty arbitrary since we have
* no way of knowing what they should be. As long as
* the CPP names are used we should be ok though.
*/
public static final int TX_OK = 0;
public static final int TX_COMMIT_COMPLETED = 1;
public static final int TX_COMMIT_DESICION_LOGGED = 2;
public static final int TX_CHAINED = 3;
public static final int TX_UNCHAINED = 4;
public static final int TX_ERROR = -1;
public static final int TX_FAIL = -2;
public static final int TX_PROTOCOL_ERROR = -3;
public static final int TX_OUTSIDE = -4;
public static final int TX_NO_BEGIN = -5;
public static final int TX_HAZARD = -6;
public static final int TX_HAZARD_NO_BEGIN = -7;
public static final int TX_NOT_SUPPORTED = -8;
public static final int TX_EINVAL = -9;
public static final int TX_ROLLBACK = -10;
public static final int TX_ROLLBACK_NO_BEGIN = -11;
public static final synchronized int tx_open ()
{
int toReturn = tx.TX_ERROR; // what to return?
if (!__tx_open)
{
__tx_open = true;
toReturn = tx.TX_OK;
}
return toReturn;
}
/**
* The X/Open spec. says to raise TX_PROTOCOL_ERROR if called
* from within a transaction. However, the OTS spec. implies there
* is no mapping for tx_close. So, do nothing.
*/
public static final synchronized int tx_close ()
{
int toReturn = tx.TX_ERROR;
if (__tx_open)
{
__tx_open = false;
toReturn = tx.TX_OK;
}
return toReturn;
}
public static final synchronized int tx_allow_nesting ()
{
int toReturn = tx.TX_PROTOCOL_ERROR;
if (!__tx_open)
{
__tx_allow_nesting = true;
toReturn = tx.TX_OK;
}
return toReturn;
}
public static final synchronized int tx_begin ()
{
int toReturn = tx.TX_OK;
CurrentImple current = OTSImpleManager.current();
if (!__tx_allow_nesting)
{
/*
* Already have a transaction?
*/
try
{
Control control = current.get_control();
if (control != null)
{
/*
* Have a transaction already, and not allowed to
* create nested transactions!
*/
toReturn = tx.TX_PROTOCOL_ERROR;
control = null;
}
}
catch (Exception e)
{
// something went wrong!
toReturn = tx.TX_FAIL;
}
}
if (toReturn == tx.TX_OK)
{
try
{
current.begin();
}
catch (Exception e)
{
toReturn = tx.TX_FAIL;
}
}
return toReturn;
}
/**
* This needs to implement checked transactions such that only the
* transaction initiator (thread) can terminate it.
*/
public static final synchronized int tx_rollback ()
{
int toReturn = tx.TX_OK;
CurrentImple current = OTSImpleManager.current();
try
{
current.rollback();
}
catch (NoTransaction e1)
{
toReturn = tx.TX_NO_BEGIN;
}
catch (Exception e2)
{
toReturn = tx.TX_FAIL;
}
return toReturn;
}
public static final synchronized int tx_set_commit_return (int when_return)
{
int toReturn = tx.TX_OK;
boolean b = ((when_return == 0) ? false : true);
if ((when_return == tx.TX_COMMIT_COMPLETED) ||
(when_return == tx.TX_COMMIT_DESICION_LOGGED))
{
__tx_report_heuristics.put(Thread.currentThread(), new Boolean(b));
}
else
toReturn = tx.TX_PROTOCOL_ERROR;
return toReturn;
}
public static final synchronized int tx_commit ()
{
int toReturn = tx.TX_OK;
CurrentImple current = OTSImpleManager.current();
Boolean report_heuristics = (Boolean) __tx_report_heuristics.get(Thread.currentThread());
if (report_heuristics == null)
report_heuristics = new Boolean(true); // default TRUE
try
{
boolean when_return = report_heuristics.booleanValue();
current.commit(when_return);
}
catch (NoTransaction e1)
{
toReturn = tx.TX_NO_BEGIN;
}
catch (HeuristicMixed e2)
{
toReturn = tx.TX_HAZARD;
}
catch (HeuristicHazard e3)
{
toReturn = tx.TX_HAZARD;
}
catch (TRANSACTION_ROLLEDBACK e4)
{
toReturn = tx.TX_ROLLBACK;
}
catch (Exception e5)
{
toReturn = tx.TX_FAIL;
}
return toReturn;
}
public static final synchronized int tx_set_transaction_control (int control)
{
return tx.TX_FAIL;
}
public static final synchronized int tx_set_transaction_timeout (int timeout)
{
int toReturn = tx.TX_OK;
CurrentImple current = OTSImpleManager.current();
try
{
current.set_timeout(timeout);
}
catch (Exception e)
{
toReturn = tx.TX_FAIL;
}
return toReturn;
}
private static boolean __tx_open = false;
private static boolean __tx_allow_nesting = false;
private static Hashtable __tx_report_heuristics = new Hashtable();
}