1  /* 
2  * Copyright 2005 Paul Hinds
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.tp23.antinstaller.selfextract;
17
18import java.io.File;
19
20import org.tp23.antinstaller.InstallException;
21import org.tp23.antinstaller.runtime.ExecInstall;
22import org.tp23.antinstaller.runtime.exe.FilterChain;
23import org.tp23.antinstaller.runtime.exe.FilterFactory;
24
25/**
26 * This class is a replacement for the SelfExtractor that provides a similar
27 * function to the SelfExtractor but avoids the need to extract all the
28 * files prior to running the build.  When using this extractor the project
29 * is run from the Jar but It is the Ant builds responsibility to access
30 * resources from within the Jar the Jar itself can be referenced using 
31 * the Ant property "antinstaller.jar".  The build file is automatically read
32 * from the Jar.
33 * @author Paul Hinds
34 * @version $Id: NonExtractor.java,v 1.4 2006/12/15 21:16:39 teknopaul Exp $
35 */
36public class NonExtractor extends SelfExtractor{
37    
38    /** used by AntProjectFilter */
39    public static final String ANTINSTALLER_JAR_PROPERTY = "antinstaller.jar";
40    public static final String CONFIG_RESOURCE = "/org/tp23/antinstaller/runtime/exe/nonextractor.fconfig";
41    
42    /**
43     * Run method to use from the command line. This is fired via an entry in the 
44     * MANIFEST.MF in the Jar
45     *@param  args  The command line arguments
46     */
47    public static void main(String[] args) {
48        try {
49            SelfExtractor extractor = null;
50            extractor = new NonExtractor();
51            FilterChain chain = FilterFactory.factory(CONFIG_RESOURCE);
52            ExecInstall installExec = new ExecInstall(chain);
53            installExec.parseArgs(args, false);
54
55            // create temporary space for the build to be removed on exit
56            File temp = extractor.makeTempDir();
57            installExec.setTempRoot(temp);
58            installExec.setInstallRoot(temp);
59            installExec.exec();
60        }
61        catch (InstallException e) {
62            System.out.println("Can't load filter chain: " + CONFIG_RESOURCE);
63            e.printStackTrace();
64        }
65    }
66}
67