proposal/mutant/src/main/org/apache/ant/frontend/Launcher.java

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
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 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
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 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
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 * 5. Products derived from this software may not be called "Apache"
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package org.apache.ant.frontend;

import java.io.*;
import java.net.*;
import javax.xml.parsers.*;
import java.lang.reflect.*;

import org.apache.ant.core.support.*;

/**
 * This is the command line front end to end. It drives the core
 *
 * @author <a href="mailto:conor@apache.org">Conor MacNeill</a>
 */ 
public class Launcher {
    public static void main(String[] args) throws Exception {
        
        // we need to find the parser jars and makre sure we are going to use
        // those in preference to anything else that may be lying about in the
        // user's classpath
        AntClassLoader coreClassLoader = AntLocator.getCoreClassLoader(System.getProperties());

        URL frontEndURL = AntLocator.getClassLocationURL(Launcher.class);
        coreClassLoader.addURL(frontEndURL);
        
        Class commandLineClass = Class.forName("org.apache.ant.frontend.Commandline", true, coreClassLoader);
        
        final Class[] param = {Class.forName("[Ljava.lang.String;")};
        Class target = null;
        final Method startMethod = commandLineClass.getMethod("start", param);
        final Object[] argument = {args};
        startMethod.invoke(null, argument);
    }
}