| /* |
| * Copyright (C) 2015 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| package com.googlecode.android_scripting.interpreter; |
| |
| import dalvik.system.DexClassLoader; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| public class ExternalClassLoader { |
| |
| public Object load(Collection<String> dexPaths, Collection<String> nativePaths, String className) |
| throws Exception { |
| String dexOutputDir = "/sdcard/dexoutput"; |
| String joinedDexPaths = join(dexPaths, ":"); |
| String joinedNativeLibPaths = nativePaths != null ? join(nativePaths, ":") : null; |
| DexClassLoader loader = |
| new DexClassLoader(joinedDexPaths, dexOutputDir, joinedNativeLibPaths, this.getClass() |
| .getClassLoader()); |
| Class<?> classToLoad = Class.forName(className, true, loader); |
| return classToLoad.newInstance(); |
| } |
| |
| private static String join(Collection<String> collection, String delimiter) { |
| StringBuffer buffer = new StringBuffer(); |
| Iterator<String> iter = collection.iterator(); |
| while (iter.hasNext()) { |
| buffer.append(iter.next()); |
| if (iter.hasNext()) { |
| buffer.append(delimiter); |
| } |
| } |
| return buffer.toString(); |
| } |
| } |