/*
* 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 General Public License, v. 2.0.
* 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 General Public License for more details.
* You should have received a copy of the GNU General Public License,
* v. 2.0 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) 2002,
*
* Arjuna Technologies Limited,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: CoordinatorManagerFactory.java,v 1.8 2005/05/19 12:13:25 nmcl Exp $
*/
package com.arjuna.mw.wscf.model.twophase;
import com.arjuna.mw.wscf.logging.wscfLogger;
import com.arjuna.mw.wscf.model.twophase.hls.TwoPhaseHLS;
import com.arjuna.mw.wscf.model.twophase.api.CoordinatorManager;
import com.arjuna.mw.wsas.exceptions.SystemException;
import com.arjuna.mwlabs.wscf.utils.ProtocolLocator;
import com.arjuna.mw.wscf.common.CoordinatorXSD;
import com.arjuna.mw.wscf.protocols.*;
import com.arjuna.mw.wscf.utils.*;
import com.arjuna.mw.wscf.exceptions.ProtocolNotRegisteredException;
import java.util.HashMap;
import com.arjuna.mwlabs.wscf.model.twophase.arjunacore.TwoPhaseHLSImple;
/**
* The factory to return the specific CoordinatorManager implementation.
*
* @author Mark Little (mark.little@arjuna.com)
* @version $Id: CoordinatorManagerFactory.java,v 1.8 2005/05/19 12:13:25 nmcl Exp $
* @since 1.0.
*/
public class CoordinatorManagerFactory
{
/**
* @exception ProtocolNotRegisteredException Thrown if the default
* protocol is not available.
*
* @return the CoordinatorManager implementation to use. The default
* coordination protocol is used (two-phase commit) with its
* associated implementation.
*
* @message com.arjuna.mw.wscf.model.twophase.CMF_1 [com.arjuna.mw.wscf.model.twophase.CMF_1] - Failed to create
*/
public static CoordinatorManager coordinatorManager () throws ProtocolNotRegisteredException, SystemException
{
try
{
ProtocolLocator pl = new ProtocolLocator(TwoPhaseHLSImple.className());
org.w3c.dom.Document doc = pl.getProtocol();
if (doc == null)
{
wscfLogger.arjLoggerI18N.warn("com.arjuna.mw.wscf.model.twophase.CMF_1",
new Object[]{TwoPhaseHLSImple.className()});
}
else
return coordinatorManager(doc);
}
catch (Exception ex)
{
ex.printStackTrace();
throw new SystemException(ex.toString());
}
return null;
}
/**
* Obtain a reference to a coordinator that implements the specified
* protocol.
*
* @param org.w3c.dom.Document protocol The XML definition of the type of
* coordination protocol required.
*
* @exception ProtocolNotRegisteredException Thrown if the requested
* protocol is not available.
*
* @return the CoordinatorManager implementation to use.
*/
/*
* Have the type specified in XML. More data may be specified, which
* can be passed to the implementation in the same way ObjectName was.
*/
public static CoordinatorManager coordinatorManager (org.w3c.dom.Document protocol) throws ProtocolNotRegisteredException, SystemException
{
try
{
synchronized (_implementations)
{
org.w3c.dom.Text child = DomUtil.getTextNode(protocol, CoordinatorXSD.coordinatorType);
String protocolType = child.getNodeValue();
TwoPhaseHLS coordHLS = (TwoPhaseHLS) _implementations.get(protocolType);
if (coordHLS == null)
{
Object implementation = _protocolManager.getProtocolImplementation(protocol);
if (implementation instanceof String)
{
Class c = Class.forName((String) implementation);
coordHLS = (TwoPhaseHLS) c.newInstance();
}
else
coordHLS = (TwoPhaseHLS) implementation;
_implementations.put(protocolType, coordHLS);
}
return coordHLS.coordinatorManager();
}
}
catch (ProtocolNotRegisteredException ex)
{
throw ex;
}
catch (Exception ex)
{
throw new SystemException(ex.toString());
}
}
private static ProtocolManager _protocolManager = ProtocolRegistry.sharedManager();
private static HashMap _implementations = new HashMap();
}