| /** |
| * 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.util; |
| |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.Writer; |
| import java.text.MessageFormat; |
| import java.util.Properties; |
| import java.util.jar.JarInputStream; |
| import java.util.jar.JarOutputStream; |
| import java.util.jar.Manifest; |
| |
| public class TestJarFinder { |
| |
| @Test |
| public void testJar() throws Exception { |
| |
| //picking a class that is for sure in a JAR in the classpath |
| String jar = JarFinder.getJar(LogFactory.class); |
| Assert.assertTrue(new File(jar).exists()); |
| } |
| |
| private static void delete(File file) throws IOException { |
| if (file.getAbsolutePath().length() < 5) { |
| throw new IllegalArgumentException( |
| MessageFormat.format("Path [{0}] is too short, not deleting", |
| file.getAbsolutePath())); |
| } |
| if (file.exists()) { |
| if (file.isDirectory()) { |
| File[] children = file.listFiles(); |
| if (children != null) { |
| for (File child : children) { |
| delete(child); |
| } |
| } |
| } |
| if (!file.delete()) { |
| throw new RuntimeException( |
| MessageFormat.format("Could not delete path [{0}]", |
| file.getAbsolutePath())); |
| } |
| } |
| } |
| |
| @Test |
| public void testExpandedClasspath() throws Exception { |
| //picking a class that is for sure in a directory in the classpath |
| //in this case the JAR is created on the fly |
| String jar = JarFinder.getJar(TestJarFinder.class); |
| Assert.assertTrue(new File(jar).exists()); |
| } |
| |
| @Test |
| public void testExistingManifest() throws Exception { |
| File dir = GenericTestUtils |
| .getTestDir(TestJarFinder.class.getName() + "-testExistingManifest"); |
| delete(dir); |
| dir.mkdirs(); |
| |
| File metaInfDir = new File(dir, "META-INF"); |
| metaInfDir.mkdirs(); |
| File manifestFile = new File(metaInfDir, "MANIFEST.MF"); |
| Manifest manifest = new Manifest(); |
| OutputStream os = new FileOutputStream(manifestFile); |
| manifest.write(os); |
| os.close(); |
| |
| File propsFile = new File(dir, "props.properties"); |
| Writer writer = new FileWriter(propsFile); |
| new Properties().store(writer, ""); |
| writer.close(); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| JarOutputStream zos = new JarOutputStream(baos); |
| JarFinder.jarDir(dir, "", zos); |
| JarInputStream jis = |
| new JarInputStream(new ByteArrayInputStream(baos.toByteArray())); |
| Assert.assertNotNull(jis.getManifest()); |
| jis.close(); |
| } |
| |
| @Test |
| public void testNoManifest() throws Exception { |
| File dir = GenericTestUtils |
| .getTestDir(TestJarFinder.class.getName() + "-testNoManifest"); |
| delete(dir); |
| dir.mkdirs(); |
| File propsFile = new File(dir, "props.properties"); |
| Writer writer = new FileWriter(propsFile); |
| new Properties().store(writer, ""); |
| writer.close(); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| JarOutputStream zos = new JarOutputStream(baos); |
| JarFinder.jarDir(dir, "", zos); |
| JarInputStream jis = |
| new JarInputStream(new ByteArrayInputStream(baos.toByteArray())); |
| Assert.assertNotNull(jis.getManifest()); |
| jis.close(); |
| } |
| } |