1 /* 2 * Copyright (C) 2016 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 17 package com.android.internal.os; 18 19 import android.os.Trace; 20 21 import dalvik.system.PathClassLoader; 22 23 /** 24 * Creates path class loaders. 25 * 26 * @hide 27 */ 28 public class PathClassLoaderFactory { 29 // Unconstructable 30 private PathClassLoaderFactory() {} 31 32 /** 33 * Create a PathClassLoader and initialize a linker-namespace for it. 34 * 35 * @hide 36 */ 37 public static PathClassLoader createClassLoader(String dexPath, 38 String librarySearchPath, 39 String libraryPermittedPath, 40 ClassLoader parent, 41 int targetSdkVersion, 42 boolean isNamespaceShared) { 43 PathClassLoader pathClassloader = new PathClassLoader(dexPath, librarySearchPath, parent); 44 45 Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "createClassloaderNamespace"); 46 String errorMessage = createClassloaderNamespace(pathClassloader, 47 targetSdkVersion, 48 librarySearchPath, 49 libraryPermittedPath, 50 isNamespaceShared); 51 Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); 52 53 if (errorMessage != null) { 54 throw new UnsatisfiedLinkError("Unable to create namespace for the classloader " + 55 pathClassloader + ": " + errorMessage); 56 } 57 58 return pathClassloader; 59 } 60 61 private static native String createClassloaderNamespace(ClassLoader classLoader, 62 int targetSdkVersion, 63 String librarySearchPath, 64 String libraryPermittedPath, 65 boolean isNamespaceShared); 66 } 67
