| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.ignite.internal.processors.hadoop; |
| |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.internal.util.IgniteUtils; |
| import org.apache.ignite.internal.util.typedef.F; |
| import org.apache.ignite.internal.util.typedef.X; |
| |
| /** |
| * Hadoop test class loader aimed to provide better isolation. |
| */ |
| public class HadoopTestClassLoader extends URLClassLoader { |
| /** Parent class loader. */ |
| private static final ClassLoader APP_CLS_LDR = HadoopTestClassLoader.class.getClassLoader(); |
| |
| /** */ |
| private static final Collection<URL> APP_JARS = F.asList(IgniteUtils.classLoaderUrls(APP_CLS_LDR)); |
| |
| /** All participating URLs. */ |
| private static final URL[] URLS; |
| |
| static { |
| try { |
| List<URL> res = new ArrayList<>(); |
| |
| for (URL url : APP_JARS) { |
| String urlStr = url.toString(); |
| |
| if (urlStr.contains("modules/hadoop/")) |
| res.add(url); |
| } |
| |
| res.addAll(HadoopClasspathUtils.classpathForClassLoader()); |
| |
| X.println(">>> " + HadoopTestClassLoader.class.getSimpleName() + " static paths:"); |
| |
| for (URL url : res) |
| X.println(">>> \t" + url.toString()); |
| |
| URLS = res.toArray(new URL[res.size()]); |
| } |
| catch (Exception e) { |
| throw new IgniteException("Failed to initialize class loader JARs.", e); |
| } |
| } |
| |
| /** |
| * Constructor. |
| */ |
| public HadoopTestClassLoader() { |
| super(URLS, APP_CLS_LDR); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException { |
| if (HadoopClassLoader.loadByCurrentClassloader(name)) { |
| try { |
| synchronized (getClassLoadingLock(name)) { |
| // First, check if the class has already been loaded |
| Class c = findLoadedClass(name); |
| |
| if (c == null) |
| c = findClass(name); |
| |
| if (resolve) |
| resolveClass(c); |
| |
| return c; |
| } |
| } |
| catch (NoClassDefFoundError | ClassNotFoundException e) { |
| throw new IgniteException("Failed to load class by test class loader: " + name, e); |
| } |
| } |
| |
| return super.loadClass(name, resolve); |
| } |
| } |