001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.tools.web;
031
032import java.lang.reflect.Method;
033import java.util.ArrayList;
034import java.util.List;
035
036import org.openimaj.util.reflection.ClassFinder;
037import org.openimaj.util.reflection.ReflectionUtils;
038
039/**
040 * Wrapper for all web-tools.
041 * 
042 * @author Jonathon Hare (jsh2@ecs.soton.ac.uk)
043 *
044 */
045public class WebTools {
046        /**
047         * Main method.
048         * @param args
049         */
050        public static void main(String [] args) {
051                if (args.length < 1) {
052                        List<String> tools = getToolClassNames();
053                        
054                        if (tools != null) {
055                                System.err.println("Tool name not specified. Possible tools are:");
056                                for (String s : tools) System.err.println(s);
057                        } else {
058                                System.err.println("No tools are available");
059                        }
060                        
061                        return;
062                }
063                
064                String clzname = args[0];
065                Class<?> clz = null; 
066                
067                try {
068                        clz = Class.forName(clzname);
069                } catch (ClassNotFoundException e) {
070                        try {
071                                clz = Class.forName(WebTools.class.getPackage().getName() + "." + clzname);
072                        } catch (ClassNotFoundException e1) {
073                                System.err.println("Class corresponding to " + clzname +" not found.");
074                                System.exit(0);
075                        }
076                }
077                
078                String [] newArgs = new String[args.length-1];
079                for (int i=0; i<newArgs.length; i++) newArgs[i] = args[i+1];
080                Method method;
081                try {
082                        method = clz.getMethod("main", String[].class);
083                        method.invoke(null, (Object)newArgs);
084                } catch (Exception e) {
085                        System.err.println("Error invoking class " + clz +". Nested exception is:\n");
086                        e.printStackTrace(System.err);
087                }
088        }
089
090        private static List<String> getToolClassNames() {
091                try {
092                        List<Class<?>> classes = ClassFinder.findClasses(WebTools.class.getPackage());
093                        
094                        List<String> classNames = new ArrayList<String>();
095                        for (Class<?> clz : classes) {
096                                if (clz == WebTools.class)
097                                        continue;
098                                
099                                if (ReflectionUtils.hasMain(clz)) {
100                                        classNames.add(clz.getName().replace(WebTools.class.getPackage().getName() + ".", ""));
101                                }
102                        }
103                        
104                        return classNames;
105                } catch (Exception e) {
106                        return null;
107                }
108        }
109}