001    /*
002     $Id: GroovyStarter.java,v 1.2 2005/07/04 15:18:27 blackdrag Exp $
003    
004     Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005    
006     Redistribution and use of this software and associated documentation
007     ("Software"), with or without modification, are permitted provided
008     that the following conditions are met:
009    
010     1. Redistributions of source code must retain copyright
011        statements and notices.  Redistributions must also contain a
012        copy of this document.
013    
014     2. Redistributions in binary form must reproduce the
015        above copyright notice, this list of conditions and the
016        following disclaimer in the documentation and/or other
017        materials provided with the distribution.
018    
019     3. The name "groovy" must not be used to endorse or promote
020        products derived from this Software without prior written
021        permission of The Codehaus.  For written permission,
022        please contact info@codehaus.org.
023    
024     4. Products derived from this Software may not be called "groovy"
025        nor may "groovy" appear in their names without prior written
026        permission of The Codehaus. "groovy" is a registered
027        trademark of The Codehaus.
028    
029     5. Due credit should be given to The Codehaus -
030        http://groovy.codehaus.org/
031    
032     THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033     ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034     NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
036     THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041     STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043     OF THE POSSIBILITY OF SUCH DAMAGE.
044    
045     */
046    package org.codehaus.groovy.tools;
047    
048    import org.codehaus.classworlds.ClassRealm;
049    import org.codehaus.classworlds.ClassWorld;
050    import java.lang.reflect .*;
051    import groovy.ui.GroovyMain;
052    import groovy.ui.InteractiveShell;
053    import java.net.URL;
054    import java.io.File;
055    
056    
057    
058    /**
059     * Helper class to help classworlds to load classes. 
060     */
061    public class GroovyStarter {
062    
063        static void printUsage() {
064            System.out.println("possible programs are 'groovyc','groovy','console','grok' and 'groovysh'");
065            System.exit(1);
066        }
067    
068        public static void main(String oldArgs[],ClassWorld classWorld ) {
069            try {
070                // Creates a realm with *just* the system classloader
071                ClassRealm system = classWorld.newRealm("system");
072         
073                // Get the groovy realm
074                ClassRealm groovy = classWorld.getRealm("groovy");
075               
076                // import everything from the system realm, because imports
077                // are searched *first* in Classworlds
078                groovy.importFrom("system", "");
079                
080                //add tools.jar to classpath
081                String tools = System.getProperty("tools.jar");
082                if (tools!=null) {
083                    URL ref = (new File(tools)).toURI().toURL();
084                    groovy.addConstituent(ref);
085                }
086            
087                if (oldArgs.length==0) {
088                    printUsage();
089                    System.exit(1);
090                }
091                
092                String program = oldArgs[0].toLowerCase();
093                String[] args = new String[oldArgs.length-1];
094                for (int i=0; i<args.length; i++) {
095                    args[i] = oldArgs[i+1];
096                }
097                
098                if (program.equals("groovyc")) {
099                    org.codehaus.groovy.tools.FileSystemCompiler.main(args);
100                } else if (program.equals("groovy")) {
101                    GroovyMain.main(args);
102                } else if (program.equals("console")) {
103                    // work around needed, because the console is compiled after this files
104                    Class c = Class.forName("groovy.ui.Console");
105                    Method m= c.getMethod("main", new Class[]{String[].class});
106                    m.invoke(null, new Object[]{args});
107                } else if (program.equals("groovysh")) {
108                    InteractiveShell.main(args);
109                 } else if (program.equals("grok")) {
110                    org.codehaus.groovy.tools.Grok.main(args);
111                } else {
112                    System.out.println("unknown program "+program);
113                    printUsage();
114                    System.exit(1);
115                }
116            
117            } catch (Exception e) {
118                e.printStackTrace();
119                System.exit(1);
120            }
121            
122        }
123    }