siputil.java

Java SIP

/*
 * This file was derived from libdissipate, an open source SIP library. The original file 
 * was modified on 1/23/2001.  Please see
 * http://www.div8.net/dissipate for more information.
 *
 * Copyright (c) 2000 Billy Biggs <[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.
 *
 */
/**
 * class SipUtil
 * 
 * Container class for useful functions needed by the stack in general.  I'd
 * like to put these somewhere else.  They're not needed outside of the stack.
 *
 * This code has been generated using C2J++
 * C2J++ is based on Chris Laffra's C2J ([e-mail])
 * Read general disclaimer distributed with C2J++ before using this code
 * For information about C2J++, send mail to [e-mail]
 */
package org.mitre.jsip;

import java.io.File;
import java.net.InetAddress;
import java.net.UnknownHostException;

public class SipUtil
{

    /**
     * SipUtil
     */
    public SipUtil()
    {}

    /**
     * getLocalFqdn
     * @return char*
     */
    public static String getLocalFqdn()
    {
	if ( dissipate_our_fqdn == null ) {
	    findFqdn();
	}

	return dissipate_our_fqdn;
    }

    /**
     * checkFilename
     * @param filename
     * @return bool
     */
    public boolean checkFilename(String filename)
    {
	File fd = new File(filename);

	return fd.exists();
    }


    /**
     */
    static void findFqdn()
    {
	InetAddress hostAddr = null;
	try {
	    hostAddr = InetAddress.getLocalHost();
	} catch (UnknownHostException uhe) {
	    System.err.println("Couldn't get InetAddress for localhost");
	    dissipate_our_fqdn = "Unknown";
	    return;
	}

	dissipate_our_fqdn = hostAddr.getHostName();
    }

    // class variables
    static String dissipate_our_fqdn = null ; 

    /**
     * test method
     */
    public static void main( String[] args ) {
	System.out.println("The local hostname found is " + SipUtil.getLocalFqdn());
    }
}