| /* |
| * 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.accumulo.classloader.vfs; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.net.URL; |
| |
| import org.apache.commons.vfs2.FileChangeEvent; |
| import org.apache.commons.vfs2.FileListener; |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.impl.DefaultFileMonitor; |
| import org.apache.commons.vfs2.impl.VFSClassLoader; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class VfsClassLoaderTest extends AccumuloDFSBase { |
| |
| private static final Path TEST_DIR = new Path(getHdfsUri() + "/test-dir"); |
| |
| private FileSystem hdfs = null; |
| private VFSClassLoader cl = null; |
| |
| @Before |
| public void setup() throws Exception { |
| |
| this.hdfs = cluster.getFileSystem(); |
| this.hdfs.mkdirs(TEST_DIR); |
| |
| // Copy jar file to TEST_DIR |
| URL jarPath = this.getClass().getResource("/HelloWorld.jar"); |
| Path src = new Path(jarPath.toURI().toString()); |
| Path dst = new Path(TEST_DIR, src.getName()); |
| this.hdfs.copyFromLocalFile(src, dst); |
| |
| FileObject testDir = vfs.resolveFile(TEST_DIR.toUri().toString()); |
| FileObject[] dirContents = testDir.getChildren(); |
| |
| // Point the VFSClassLoader to all of the objects in TEST_DIR |
| this.cl = new VFSClassLoader(dirContents, vfs); |
| } |
| |
| @Test |
| public void testGetClass() throws Exception { |
| Class<?> helloWorldClass = this.cl.loadClass("test.HelloWorld"); |
| Object o = helloWorldClass.getDeclaredConstructor().newInstance(); |
| assertEquals("Hello World!", o.toString()); |
| } |
| |
| @Test |
| public void testFileMonitor() throws Exception { |
| MyFileMonitor listener = new MyFileMonitor(); |
| DefaultFileMonitor monitor = new DefaultFileMonitor(listener); |
| monitor.setRecursive(true); |
| FileObject testDir = vfs.resolveFile(TEST_DIR.toUri().toString()); |
| monitor.addFile(testDir); |
| monitor.start(); |
| |
| // Copy jar file to a new file name |
| URL jarPath = this.getClass().getResource("/HelloWorld.jar"); |
| Path src = new Path(jarPath.toURI().toString()); |
| Path dst = new Path(TEST_DIR, "HelloWorld2.jar"); |
| this.hdfs.copyFromLocalFile(src, dst); |
| |
| // VFS-487 significantly wait to avoid failure |
| Thread.sleep(7000); |
| assertTrue(listener.isFileCreated()); |
| |
| // Update the jar |
| jarPath = this.getClass().getResource("/HelloWorld.jar"); |
| src = new Path(jarPath.toURI().toString()); |
| dst = new Path(TEST_DIR, "HelloWorld2.jar"); |
| this.hdfs.copyFromLocalFile(src, dst); |
| |
| // VFS-487 significantly wait to avoid failure |
| Thread.sleep(7000); |
| assertTrue(listener.isFileChanged()); |
| |
| this.hdfs.delete(dst, false); |
| // VFS-487 significantly wait to avoid failure |
| Thread.sleep(7000); |
| assertTrue(listener.isFileDeleted()); |
| |
| monitor.stop(); |
| |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| this.hdfs.delete(TEST_DIR, true); |
| } |
| |
| public static class MyFileMonitor implements FileListener { |
| |
| private boolean fileChanged = false; |
| private boolean fileDeleted = false; |
| private boolean fileCreated = false; |
| |
| @Override |
| public void fileCreated(FileChangeEvent event) throws Exception { |
| // System.out.println(event.getFile() + " created"); |
| this.fileCreated = true; |
| } |
| |
| @Override |
| public void fileDeleted(FileChangeEvent event) throws Exception { |
| // System.out.println(event.getFile() + " deleted"); |
| this.fileDeleted = true; |
| } |
| |
| @Override |
| public void fileChanged(FileChangeEvent event) throws Exception { |
| // System.out.println(event.getFile() + " changed"); |
| this.fileChanged = true; |
| } |
| |
| public boolean isFileChanged() { |
| return fileChanged; |
| } |
| |
| public boolean isFileDeleted() { |
| return fileDeleted; |
| } |
| |
| public boolean isFileCreated() { |
| return fileCreated; |
| } |
| |
| } |
| } |