JConnectionFactory.java

/*
 * JOnAS: Java(TM) Open Application Server
 * Copyright (C) 1999 Bull S.A.
 * Contact: jonas-team@objectweb.org
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY 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 along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *
 * --------------------------------------------------------------------------
 * $Id: JConnectionFactory.java,v 1.8 2003/06/10 08:55:20 danesa Exp $
 * --------------------------------------------------------------------------
 */

package org.objectweb.jonas_jms;

import java.io.Serializable;
import java.util.Iterator;
import java.util.LinkedList;
import javax.naming.NamingException;
import javax.naming.Reference;
import javax.naming.Referenceable;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.XAConnectionFactory;

import org.objectweb.jonas_jms.api.JmsManager;

import org.objectweb.util.monolog.api.BasicLevel;

public class JConnectionFactory implements  ConnectionFactory, Referenceable, Serializable {

    protected JmsManager jms;
    protected String name;
    protected XAConnectionFactory xacf;

    private LinkedList connectionpool = new LinkedList();

    public JConnectionFactory(String name) {
        this.name = name;
        jms = JmsManagerImpl.getJmsManager();
        xacf = jms.getXAConnectionFactory();
    }

    protected JConnectionFactory() {
    }


    // -----------------------------------------------------------------------
    // ConnectionFactory implementation
    // -----------------------------------------------------------------------

    public Connection createConnection() throws JMSException {
        TraceJms.logger.log(BasicLevel.DEBUG,"");
        JConnection c = (JConnection) getJConnection();
        if (c == null) {
            c = new JConnection(this, xacf);
        }
        return (Connection) c;
    }

    public Connection createConnection(String userName, String password) throws JMSException {
        TraceJms.logger.log(BasicLevel.DEBUG,"");
        JConnection c = (JConnection) getJConnection(userName);
        if (c == null) {
            c = new JConnection(this, xacf, userName, password);
        }
        return (Connection) c;
    }

    // -----------------------------------------------------------------------
    // Internal Methods
    // -----------------------------------------------------------------------

    public void freeJConnection(JConnection con) {
        TraceJms.logger.log(BasicLevel.DEBUG,  "");
        synchronized (connectionpool) {
            connectionpool.addLast(con);
        }
    }

    void cleanPool() {
        TraceJms.logger.log(BasicLevel.DEBUG,  "");
        JConnection con = null;
        synchronized (connectionpool) {
            Iterator i = connectionpool.iterator();
            while (i.hasNext()) {
                con = (JConnection) i.next();
                try {
                    con.finalClose();
                } catch (JMSException e) {
                }
            }
        }
    }

    public JConnection getJConnection() {
        return getJConnection(JConnection.INTERNAL_USER_NAME);
    }

    public JConnection getJConnection(String user) {
        TraceJms.logger.log(BasicLevel.DEBUG,  "");
        JConnection con = null;
        synchronized (connectionpool) {
            Iterator i = connectionpool.iterator();
            while (i.hasNext()) {
                con = (JConnection) i.next();
                if (con.getUser().equals(user)) {
                    i.remove();
                    break;
                }
            }
        }
        return con;
    }



    // -----------------------------------------------------------------------
    // Referenceable implementation
    // -----------------------------------------------------------------------

    public Reference getReference() throws NamingException {
        TraceJms.logger.log(BasicLevel.DEBUG,  "");
        return new Reference(getClass().getName(), "org.objectweb.jonas_jms.JObjectFactory", null);
    }


}

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