| /** |
| * 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.hadoop.mapred; |
| |
| import org.junit.Test; |
| import java.io.File; |
| import java.net.URLClassLoader; |
| import java.net.URL; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.FileUtil; |
| |
| |
| import static org.junit.Assert.*; |
| |
| public class TestJobConf { |
| private static final String JAR_RELATIVE_PATH = |
| "build/test/mapred/testjar/testjob.jar"; |
| private static final String CLASSNAME = "ClassWithNoPackage"; |
| |
| private static String TEST_DIR_WITH_SPECIAL_CHARS = |
| System.getProperty("test.build.data","/tmp") + |
| File.separator + "test jobconf with + and spaces"; |
| |
| @Test |
| public void testFindContainingJar() throws Exception { |
| testJarAtPath(JAR_RELATIVE_PATH); |
| } |
| |
| /** |
| * Test that findContainingJar works correctly even if the |
| * path has a "+" sign or spaces in it |
| */ |
| @Test |
| public void testFindContainingJarWithPlus() throws Exception { |
| new File(TEST_DIR_WITH_SPECIAL_CHARS).mkdirs(); |
| Configuration conf = new Configuration(); |
| |
| FileSystem localfs = FileSystem.getLocal(conf); |
| |
| FileUtil.copy(localfs, new Path(JAR_RELATIVE_PATH), |
| localfs, new Path(TEST_DIR_WITH_SPECIAL_CHARS, "test.jar"), |
| false, true, conf); |
| testJarAtPath(TEST_DIR_WITH_SPECIAL_CHARS + File.separator + "test.jar"); |
| } |
| |
| /** |
| * Given a path with a jar, make a classloader with that jar on the |
| * classpath, and check that findContainingJar can correctly |
| * identify the path of the jar. |
| */ |
| private void testJarAtPath(String path) throws Exception { |
| File jar = new File(path).getAbsoluteFile(); |
| assertTrue(jar.exists()); |
| |
| URL urls[] = new URL[] { |
| jar.toURI().toURL() |
| }; |
| |
| ClassLoader cl = new URLClassLoader(urls); |
| Class clazz = Class.forName(CLASSNAME, true, cl); |
| assertNotNull(clazz); |
| |
| String containingJar = JobConf.findContainingJar(clazz); |
| assertEquals(jar.getAbsolutePath(), containingJar); |
| } |
| } |