| /** |
| * 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.flink.client.program; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.net.URLClassLoader; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.flink.api.common.Plan; |
| |
| public class JobWithJars { |
| |
| private Plan plan; |
| |
| private List<File> jarFiles; |
| |
| private ClassLoader userCodeClassLoader; |
| |
| |
| public JobWithJars(Plan plan, List<String> jarFiles) throws IOException { |
| this.plan = plan; |
| this.jarFiles = new ArrayList<File>(jarFiles.size()); |
| |
| for (String jar: jarFiles) { |
| File file = new File(jar); |
| checkJarFile(file); |
| this.jarFiles.add(file); |
| } |
| } |
| |
| public JobWithJars(Plan plan, String jarFile) throws IOException { |
| this.plan = plan; |
| |
| File file = new File(jarFile); |
| checkJarFile(file); |
| this.jarFiles = Collections.singletonList(file); |
| } |
| |
| JobWithJars(Plan plan, List<File> jarFiles, ClassLoader userCodeClassLoader) { |
| this.plan = plan; |
| this.jarFiles = jarFiles; |
| this.userCodeClassLoader = userCodeClassLoader; |
| } |
| |
| /** |
| * Returns the plan |
| */ |
| public Plan getPlan() { |
| return this.plan; |
| } |
| |
| /** |
| * Returns list of jar files that need to be submitted with the plan. |
| */ |
| public List<File> getJarFiles() { |
| return this.jarFiles; |
| } |
| |
| /** |
| * Gets the {@link java.lang.ClassLoader} that must be used to load user code classes. |
| * |
| * @return The user code ClassLoader. |
| */ |
| public ClassLoader getUserCodeClassLoader() { |
| if (this.userCodeClassLoader == null) { |
| this.userCodeClassLoader = buildUserCodeClassLoader(jarFiles, getClass().getClassLoader()); |
| } |
| |
| return this.userCodeClassLoader; |
| } |
| |
| |
| public static void checkJarFile(File jar) throws IOException { |
| if (!jar.exists()) { |
| throw new IOException("JAR file does not exist '" + jar.getAbsolutePath() + "'"); |
| } |
| if (!jar.canRead()) { |
| throw new IOException("JAR file can't be read '" + jar.getAbsolutePath() + "'"); |
| } |
| // TODO: Check if proper JAR file |
| } |
| |
| static ClassLoader buildUserCodeClassLoader(List<File> jars, ClassLoader parent) { |
| |
| URL[] urls = new URL[jars.size()]; |
| try { |
| // add the nested jars |
| for (int i = 0; i < jars.size(); i++) { |
| urls[i] = jars.get(i).getAbsoluteFile().toURI().toURL(); |
| } |
| } |
| catch (MalformedURLException e) { |
| // this should not happen, as all files should have been checked before for proper paths and existence. |
| throw new RuntimeException("Cannot create class loader for program jar files: " + e.getMessage(), e); |
| } |
| |
| return new URLClassLoader(urls, parent); |
| } |
| } |