1 /* 2 * Copyright (C) 2009 The Android Open Source Project 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 */ 16 package tests.support; 17 18 import java.io.File; 19 import java.net.URL; 20 import java.net.URLClassLoader; 21 22 /** 23 * Support class for creating a file-based ClassLoader. Delegates to either 24 * Dalvik's PathClassLoader or the RI's URLClassLoader, but does so by-name. 25 * This allows us to run corresponding tests in both environments. 26 */ 27 public abstract class Support_ClassLoader { 28 getClassLoader(URL url, ClassLoader parent)29 public abstract ClassLoader getClassLoader(URL url, ClassLoader parent); 30 getInstance(URL url, ClassLoader parent)31 public static ClassLoader getInstance(URL url, ClassLoader parent) { 32 try { 33 Support_ClassLoader factory; 34 35 String packageName = Support_ClassLoader.class.getPackage().getName(); 36 if ("Dalvik".equals(System.getProperty("java.vm.name"))) { 37 factory = (Support_ClassLoader)Class.forName( 38 packageName + ".Support_ClassLoaderDalvik").newInstance(); 39 } else { 40 factory = (Support_ClassLoader)Class.forName( 41 packageName + ".Support_ClassLoader$RefImpl").newInstance(); 42 } 43 44 return factory.getClassLoader(url, parent); 45 } catch (Exception ex) { 46 throw new RuntimeException("Unable to create ClassLoader", ex); 47 } 48 } 49 50 /** 51 * Implementation for the reference implementation. Nothing interesting to 52 * see here. Please get along. 53 */ 54 static class RefImpl extends Support_ClassLoader { 55 @Override getClassLoader(URL url, ClassLoader parent)56 public ClassLoader getClassLoader(URL url, ClassLoader parent) { 57 return new URLClassLoader(new URL[] { url }, parent); 58 } 59 } 60 } 61