ORBManager.java

/*
 * 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: ORBManager.java 2342 2006-03-30 13:06:17Z  $
 */

package com.arjuna.ats.internal.jts;

import com.arjuna.ats.internal.jts.lifecycle.ShutdownOTS;
import com.arjuna.ats.jts.logging.jtsLogger;
import com.arjuna.orbportability.ORB;
import com.arjuna.orbportability.ORBShutdownListener;
import com.arjuna.orbportability.RootOA;

/**
 * Manage the default ORB and POA used by the transaction service for the
 * non-recoverable CORBA objects it creates.
 */

public class ORBManager
{
    public static final com.arjuna.orbportability.ORB getORB ()
    {
        if (isInitialised())
        {
            return getTheORB();
        }
        else
        {
            jtsLogger.i18NLogger.fatal_ORBManager();
            throw new com.arjuna.ats.arjuna.exceptions.FatalError();
        }
    }

    private static final com.arjuna.orbportability.ORB getTheORB ()
    {
        if (_theOrb == null)
            _theOrb = ORB.getInstance(ORB_NAME);

        return _theOrb;
    }

    public static final boolean setORB (com.arjuna.orbportability.ORB theOrb)
    {
        if (_theOrb == null)
        {
            _theOrb = theOrb;

            theOrb.setORBShutdownListener(new ORBShutdownListener() {

                @Override
                public void orbShutdown() {
                    ORBManager.reset();
                }
            });

            return true;
        }

        return false;
    }

    public static final com.arjuna.orbportability.OA getPOA ()
    {
        if (isInitialised())
        {
            return getThePOA();
        }
        else
        {
            jtsLogger.i18NLogger.fatal_ORBManager();
            throw new com.arjuna.ats.arjuna.exceptions.FatalError();
        }
    }

    private static final com.arjuna.orbportability.OA getThePOA ()
    {
        if (_thePoa == null) {
            _thePoa = RootOA.getRootOA(_theOrb);
            _thePoa.addPreShutdown(new ShutdownOTS());
        }

        return _thePoa;
    }

    public static final boolean setPOA (com.arjuna.orbportability.OA thePoa)
    {
        if (_thePoa == null)
        {
            _thePoa = thePoa;
            _thePoa.addPreShutdown(new ShutdownOTS());
            return true;
        }

        return false;
    }

    public static final com.arjuna.orbportability.Services getServices ()
    {
        return new com.arjuna.orbportability.Services(_theOrb);
    }

    public static final boolean isInitialised ()
    {
        return (_theOrb != null || _thePoa != null);
    }

    public static void reset() {
        _theOrb = null;
        _thePoa = null;
    }

    private static com.arjuna.orbportability.ORB _theOrb = null;

    private static com.arjuna.orbportability.OA _thePoa = null;

    private static final String ORB_NAME = "TransactionORB";
}