1f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project/* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved. 2f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * 3f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * This program and the accompanying materials are made available under 4f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * the terms of the Common Public License v1.0 which accompanies this distribution, 5f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * and is available at http://www.eclipse.org/legal/cpl-v10.html 6f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * 7f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * $Id: ResourceLoader.java,v 1.1.1.1.2.1 2004/06/20 18:24:05 vlad_r Exp $ 8f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project */ 9f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectpackage com.vladium.util; 10f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 11f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectimport java.io.IOException; 12f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectimport java.io.InputStream; 13f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectimport java.net.URL; 14f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectimport java.util.Enumeration; 15f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 16f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project// ---------------------------------------------------------------------------- 17f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project/** 18f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * A static API that can be used as a drop-in replacement for 19f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * java.lang.ClassLoader API (the class/resource loading part). This 20f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * implementation is merely a wrapper around ClassLoaderResolverget.ClassLoader() 21f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * method. 22f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * 23f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * @author Vlad Roubtsov, (C) 2003 24f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project */ 25f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectpublic 26f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Projectabstract class ResourceLoader 27f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project{ 28f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project // public: ................................................................ 29f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 30f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project /** 31f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * @see java.lang.ClassLoader#loadClass(java.lang.String) 32f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project */ 33f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static Class loadClass (final String name) 34f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project throws ClassNotFoundException 35f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 36f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final Class caller = ClassLoaderResolver.getCallerClass (1); 37f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final ClassLoader loader = ClassLoaderResolver.getClassLoader (caller); 38f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 39f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return Class.forName (name, false, loader); 40f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 41f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 42f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project /** 43f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * @see java.lang.ClassLoader#getResource(java.lang.String) 44f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project */ 45f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static URL getResource (final String name) 46f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 47f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final Class caller = ClassLoaderResolver.getCallerClass (1); 48f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final ClassLoader loader = ClassLoaderResolver.getClassLoader (caller); 49f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 50f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project if (loader != null) 51f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return loader.getResource (name); 52f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project else 53f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return ClassLoader.getSystemResource (name); 54f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 55f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 56f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project /** 57f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * @see java.lang.ClassLoader#getResourceAsStream(java.lang.String) 58f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project */ 59f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static InputStream getResourceAsStream (final String name) 60f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 61f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final Class caller = ClassLoaderResolver.getCallerClass (1); 62f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final ClassLoader loader = ClassLoaderResolver.getClassLoader (caller); 63f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 64f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project if (loader != null) 65f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return loader.getResourceAsStream (name); 66f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project else 67f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return ClassLoader.getSystemResourceAsStream (name); 68f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 69f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 70f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project /** 71f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project * @see java.lang.ClassLoader#getResources(java.lang.String) 72f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project */ 73f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static Enumeration getResources (final String name) 74f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project throws IOException 75f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 76f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final Class caller = ClassLoaderResolver.getCallerClass (1); 77f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project final ClassLoader loader = ClassLoaderResolver.getClassLoader (caller); 78f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 79f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project if (loader != null) 80f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return loader.getResources (name); 81f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project else 82f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return ClassLoader.getSystemResources (name); 83f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 84f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 85f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 86f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static Class loadClass (final String name, final ClassLoader loader) 87f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project throws ClassNotFoundException 88f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 89f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return Class.forName (name, false, loader != null ? loader : ClassLoader.getSystemClassLoader ()); 90f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 91f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 92f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static URL getResource (final String name, final ClassLoader loader) 93f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 94f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project if (loader != null) 95f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return loader.getResource (name); 96f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project else 97f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return ClassLoader.getSystemResource (name); 98f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 99f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 100f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static InputStream getResourceAsStream (final String name, final ClassLoader loader) 101f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 102f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project if (loader != null) 103f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return loader.getResourceAsStream (name); 104f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project else 105f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return ClassLoader.getSystemResourceAsStream (name); 106f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 107f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 108f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project public static Enumeration getResources (final String name, final ClassLoader loader) 109f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project throws IOException 110f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project { 111f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project if (loader != null) 112f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return loader.getResources (name); 113f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project else 114f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project return ClassLoader.getSystemResources (name); 115f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project } 116f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 117f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project // protected: ............................................................. 118f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 119f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project // package: ............................................................... 120f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 121f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project // private: ............................................................... 122f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 123f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 124f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project private ResourceLoader () {} // prevent subclassing 125f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project 126f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project} // end of class 127f6fe897e173f4e4bda72a7dddb091b667066764aThe Android Open Source Project// ----------------------------------------------------------------------------