001 /* 002 * Copyright (C) 2010 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 020 package org.crsh.standalone; 021 022 import org.crsh.plugin.PluginContext; 023 import org.crsh.plugin.PluginLifeCycle; 024 import org.crsh.plugin.ServiceLoaderDiscovery; 025 import org.crsh.util.Utils; 026 import org.crsh.vfs.FS; 027 import org.crsh.vfs.Path; 028 import org.slf4j.Logger; 029 import org.slf4j.LoggerFactory; 030 031 import java.io.File; 032 import java.net.URL; 033 import java.net.URLClassLoader; 034 import java.util.List; 035 036 /** 037 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 038 * @version $Revision$ 039 */ 040 public class Bootstrap extends PluginLifeCycle { 041 042 /** . */ 043 protected final Logger log = LoggerFactory.getLogger(getClass()); 044 045 /** The mounted path on the file system. */ 046 private List<File> bins = Utils.newArrayList(); 047 048 /** The mounted path on the file system. */ 049 private List<File> confs = Utils.newArrayList(); 050 051 /** The class path. */ 052 private List<File> jars = Utils.newArrayList(); 053 054 /** The base classloader. */ 055 private ClassLoader baseLoader; 056 057 public Bootstrap(ClassLoader baseLoader) throws NullPointerException { 058 if (baseLoader == null) { 059 throw new NullPointerException("No null base loader accepted"); 060 } 061 this.baseLoader = baseLoader; 062 } 063 064 public Bootstrap addConfPath(File file) { 065 confs.add(file); 066 return this; 067 } 068 069 public Bootstrap addCmdPath(File file) { 070 bins.add(file); 071 return this; 072 } 073 074 public Bootstrap addJarPath(File file) { 075 jars.add(file); 076 return this; 077 } 078 079 public void bootstrap() throws Exception { 080 081 // Compute the url classpath 082 URL[] urls = new URL[jars.size()]; 083 for (int i = 0;i < urls.length;i++) { 084 urls[i] = jars.get(i).toURI().toURL(); 085 } 086 087 // Create the classloader 088 URLClassLoader classLoader = new URLClassLoader(urls, baseLoader); 089 090 // Create the bin file system 091 FS binFS = new FS(); 092 for (File bin : bins) { 093 binFS.mount(bin); 094 } 095 binFS.mount(classLoader, Path.get("/crash/commands/")); 096 097 // Create the conf file system 098 FS confFS = new FS(); 099 for (File conf : confs) { 100 confFS.mount(conf); 101 } 102 confFS.mount(classLoader, Path.get("/crash/")); 103 104 // The service loader discovery 105 ServiceLoaderDiscovery discovery = new ServiceLoaderDiscovery(classLoader); 106 107 // 108 StringBuilder info = new StringBuilder("Booting crash with classpath="); 109 info.append(jars).append(" and mounts=["); 110 for (int i = 0;i < bins.size();i++) { 111 if (i > 0) { 112 info.append(','); 113 } 114 info.append(bins.get(i).getAbsolutePath()); 115 } 116 info.append(']'); 117 log.info(info.toString()); 118 119 // 120 PluginContext context = new PluginContext(discovery, binFS, confFS, classLoader); 121 context.refresh(); 122 start(context); 123 } 124 125 public void shutdown() { 126 stop(); 127 } 128 }