proxyserver.java

Java SIP

/*
 * Copyright (c) 2001 The MITRE Corporation <[e-mail]>
 *
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Library General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at your
 * option) 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 Library General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 *
 */

/**
 * Initializes the proxy server lookup to use
 */

package org.mitre.jsip.proxy;

import org.mitre.jsip.*;
import java.lang.reflect.*;

public class ProxyServer {

    // do this for now. Will probably make these properties later on
    private static final String proxyLookupClass = 
	"org.mitre.jsip.proxy.FileProxyLookup";

    private static final String localDomainName = 
	"mitre.org";

    private static final String localProxyServer = 
	"stars.mitre.org";

    private static ProxyLookup proxyLookup = null;

    protected ProxyServer() throws SipProxyException {

	try {
	    Class[] classArgs = { String.class, String.class };
	    Object[] initArgs = { localDomainName, localProxyServer };

	    Class proxyClass = Class.forName( proxyLookupClass );
	    Constructor construct = proxyClass.getConstructor( classArgs );

	    // initialize
	    proxyLookup = (ProxyLookup) construct.newInstance( initArgs );
	} catch ( Exception e ) {
	    throw new SipProxyException( e.toString() );
	}
    }

    public static ProxyLookup getProxyLookup() {

	if ( proxyLookup == null ) {
	    try {
		ProxyServer ps = new ProxyServer();
	    } catch ( SipProxyException spe ) {
		System.err.println( "Couldn't init proxy because: " + spe.toString() );
		spe.printStackTrace();
		return null;
	    }
	}

	return proxyLookup;
    }

}