// $Id: StartBrowser.java,v 1.8 2004/08/24 16:43:23 mvw Exp $
// Copyright (c) 2002 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies.  This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason.  IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

package org.argouml.util.osdep;

import java.io.IOException;
import java.lang.reflect.Method;

import org.apache.log4j.Logger;


/**
 * @stereotype utility
 */
public class StartBrowser {
    /** logger */
    private static final Logger LOG = Logger.getLogger(StartBrowser.class);

    /**
     * Open an Url in the system's default browser.
     * 

     * This will probably not be perfect for everyone but hopefully it is a
     * good enough alternative.
     *
     * @param url the given URL
     */
    public static void openUrl(String url)
    {
	try {
	    if (OsUtil.isWin32()) {
		Runtime.getRuntime()
		    .exec("rundll32 url.dll,FileProtocolHandler " + url);
	    }
	    else if (OsUtil.isMac()) {
		try {
		    ClassLoader cl = ClassLoader.getSystemClassLoader();
		    Class c = cl.loadClass("com.apple.mrj.MRJFileUtils");
		    Class[] argtypes = {
			String.class 
		    };
		    Method m = c.getMethod("openURL", argtypes);
		    Object[] args = {
			url 
		    };
		    m.invoke(c.newInstance(), args);
		} catch (Exception cnfe) {
		    LOG.error(cnfe);
		    LOG.info("Trying a default browser (netscape)");
		    String[] commline = {
			"netscape", url 
		    };
		    Runtime.getRuntime().exec(commline);
		}
		return;
	    }
	    else {
		Process proc =
		    Runtime.getRuntime().exec("netscape -remote (" + url + ")");
		try {
		    if (proc.waitFor() != 0) {
			Runtime.getRuntime().exec("netscape " + url);
		    }
		} catch (InterruptedException ie) {
		}
	    }
	}
	catch (IOException ioe) {
	    // Didn't work.
            LOG.error(ioe);
	}	    

	LOG.error("Could not open url: " + url);
    }
}