001/* 002 * (C) Copyright 2006-2010 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * bstefanescu 018 */ 019package org.nuxeo.connect.update.standalone; 020 021import groovy.lang.GroovyClassLoader; 022 023import java.io.File; 024import java.io.FileInputStream; 025import java.io.IOException; 026import java.io.InputStream; 027import java.net.MalformedURLException; 028 029import org.nuxeo.connect.update.LocalPackage; 030import org.nuxeo.connect.update.PackageData; 031import org.nuxeo.connect.update.PackageException; 032 033/** 034 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 035 */ 036public class LocalPackageData implements PackageData { 037 038 protected File root; 039 040 protected GroovyClassLoader loader; 041 042 public LocalPackageData(ClassLoader parent, File file) throws IOException { 043 this.root = file.getCanonicalFile(); 044 if (parent == null) { 045 parent = Thread.currentThread().getContextClassLoader(); 046 if (parent == null) { 047 parent = getClass().getClassLoader(); 048 } 049 } 050 try { 051 this.loader = new GroovyClassLoader(parent); 052 loader.addURL(root.toURI().toURL()); 053 } catch (MalformedURLException e) { 054 throw new RuntimeException("Failed to create package class loader. Invalid package root: " + root, e); 055 } 056 } 057 058 public void setRoot(File file) { 059 this.root = file; 060 } 061 062 public ClassLoader getLoader() { 063 return loader; 064 } 065 066 public File getEntry(String path) { 067 return new File(root, path); 068 } 069 070 public InputStream getEntryAsStream(String path) throws IOException { 071 return new FileInputStream(getEntry(path)); 072 } 073 074 public File getManifest() { 075 return getEntry(LocalPackage.MANIFEST); 076 } 077 078 public File getRoot() { 079 return root; 080 } 081 082 public Class<?> loadClass(String name) throws PackageException { 083 try { 084 return loader.loadClass(name); 085 } catch (ClassNotFoundException e) { 086 throw new PackageException("Failed to load class " + name + " from package: " + root.getName()); 087 } 088 } 089 090}