| /* |
| * 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.commons.jci.monitor; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.commons.jci.listeners.AbstractFilesystemAlterationListener; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| |
| /** |
| * |
| * @author tcurdt |
| */ |
| public final class FilesystemAlterationMonitorTestCase extends TestCase { |
| |
| private final Log log = LogFactory.getLog(FilesystemAlterationMonitorTestCase.class); |
| |
| private FilesystemAlterationMonitor fam; |
| private MyFilesystemAlterationListener listener; |
| |
| private File directory; |
| |
| |
| @Override |
| protected void setUp() throws Exception { |
| directory = createTempDirectory(); |
| assertTrue(directory.exists()); |
| assertTrue(directory.isDirectory()); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| FileUtils.deleteDirectory(directory); |
| } |
| |
| |
| protected File createDirectory( final String pName ) throws Exception { |
| final File newDirectory = new File(directory, pName); |
| assertTrue(newDirectory.mkdir()); |
| assertTrue(newDirectory.exists()); |
| assertTrue(newDirectory.isDirectory()); |
| return newDirectory; |
| } |
| |
| protected File writeFile( final String pName, final byte[] pData ) throws Exception { |
| final File file = new File(directory, pName); |
| final File parent = file.getParentFile(); |
| if (!parent.mkdirs() && !parent.isDirectory()) { |
| throw new IOException("could not create" + parent); |
| } |
| |
| log.debug("writing file " + pName + " (" + pData.length + " bytes)"); |
| |
| final FileOutputStream os = new FileOutputStream(file); |
| os.write(pData); |
| os.close(); |
| |
| assertTrue(file.exists()); |
| assertTrue(file.isFile()); |
| |
| return file; |
| } |
| |
| protected File writeFile( final String pName, final String pText ) throws Exception { |
| final File file = new File(directory, pName); |
| final File parent = file.getParentFile(); |
| if (!parent.mkdirs() && !parent.isDirectory()) { |
| throw new IOException("could not create" + parent); |
| } |
| log.debug("writing " + file); |
| final FileWriter writer = new FileWriter(file); |
| writer.write(pText); |
| writer.close(); |
| |
| assertTrue(file.exists()); |
| assertTrue(file.isFile()); |
| |
| return file; |
| } |
| |
| protected File createTempDirectory() throws IOException { |
| final File tempFile = File.createTempFile("jci", null); |
| |
| if (!tempFile.delete()) { |
| throw new IOException(); |
| } |
| |
| if (!tempFile.mkdir()) { |
| throw new IOException(); |
| } |
| |
| return tempFile; |
| } |
| |
| |
| protected void delay() { |
| try { |
| Thread.sleep(1500); |
| } catch (final InterruptedException e) { |
| } |
| } |
| |
| |
| |
| private static class MyFilesystemAlterationListener extends AbstractFilesystemAlterationListener { |
| } |
| |
| private void start() throws Exception { |
| fam = new FilesystemAlterationMonitor(); |
| listener = new MyFilesystemAlterationListener(); |
| fam.addListener(directory, listener); |
| fam.start(); |
| listener.waitForFirstCheck(); |
| } |
| |
| private void stop() { |
| fam.stop(); |
| } |
| |
| public void testListenerDoublication() throws Exception { |
| fam = new FilesystemAlterationMonitor(); |
| listener = new MyFilesystemAlterationListener(); |
| |
| fam.addListener(directory, listener); |
| assertEquals(1, fam.getListenersFor(directory).length); |
| |
| fam.addListener(directory, listener); |
| assertEquals(1, fam.getListenersFor(directory).length); |
| |
| fam.removeListener(listener); |
| assertEquals(0, fam.getListenersFor(directory).length); |
| } |
| |
| public void testDirectoryDoublication() throws Exception { |
| fam = new FilesystemAlterationMonitor(); |
| |
| fam.addListener(directory, new MyFilesystemAlterationListener()); |
| assertEquals(1, fam.getListenersFor(directory).length); |
| |
| fam.addListener(directory, new MyFilesystemAlterationListener()); |
| assertEquals(2, fam.getListenersFor(directory).length); |
| } |
| |
| public void testCreateFileDetection() throws Exception { |
| start(); |
| |
| writeFile("file", "file"); |
| |
| listener.waitForCheck(); |
| |
| assertEquals(1, listener.getCreatedFiles().size()); |
| |
| stop(); |
| } |
| |
| public void testTimeout() throws Exception { |
| listener = new MyFilesystemAlterationListener(); |
| |
| try { |
| listener.waitForFirstCheck(); |
| fail("should be an timeout"); |
| } catch(Exception e) { |
| assertEquals("timeout", e.getMessage()); |
| } |
| |
| start(); |
| |
| try { |
| listener.waitForEvent(); |
| fail("should be an timeout"); |
| } catch(Exception e) { |
| assertEquals("timeout", e.getMessage()); |
| } |
| |
| stop(); |
| |
| try { |
| listener.waitForCheck(); |
| fail("should be an timeout"); |
| } catch(Exception e) { |
| assertEquals("timeout", e.getMessage()); |
| } |
| |
| } |
| |
| public void testCreateDirectoryDetection() throws Exception { |
| start(); |
| |
| createDirectory("dir"); |
| |
| listener.waitForCheck(); |
| |
| assertEquals(1, listener.getCreatedDirectories().size()); |
| |
| stop(); |
| } |
| |
| public void testDeleteFileDetection() throws Exception { |
| start(); |
| |
| final File file = writeFile("file", "file"); |
| |
| assertTrue("file should exist", file.exists()); |
| |
| listener.waitForCheck(); |
| |
| assertEquals("expecting 1 file created", 1, listener.getCreatedFiles().size()); |
| //assertEquals("expecting 0 directories changed", 0, listener.getChangedDirectories().size()); // todo investigate why this is failing on Windows |
| |
| file.delete(); |
| assertFalse("file should not exist", file.exists()); |
| |
| listener.waitForCheck(); |
| |
| assertEquals("expecting 1 file deleted", 1, listener.getDeletedFiles().size()); |
| |
| stop(); |
| } |
| public void testDeleteDirectoryDetection() throws Exception { |
| start(); |
| |
| final File dir = createDirectory("dir"); |
| createDirectory("dir/sub"); |
| final File file = writeFile("dir/sub/file", "file"); |
| |
| listener.waitForCheck(); |
| |
| assertEquals(2, listener.getCreatedDirectories().size()); |
| assertEquals(1, listener.getCreatedFiles().size()); |
| |
| delay(); |
| |
| FileUtils.deleteDirectory(dir); |
| assertTrue(!dir.exists()); |
| assertTrue(!file.exists()); |
| |
| listener.waitForCheck(); |
| |
| assertEquals(2, listener.getDeletedDirectories().size()); |
| assertEquals(1, listener.getDeletedFiles().size()); |
| |
| stop(); |
| } |
| |
| public void testModifyFileDetection() throws Exception { |
| start(); |
| |
| writeFile("file", "file"); |
| |
| listener.waitForCheck(); |
| |
| assertEquals(1, listener.getCreatedFiles().size()); |
| |
| delay(); |
| |
| writeFile("file", "changed file"); |
| |
| listener.waitForCheck(); |
| |
| assertEquals(1, listener.getChangedFiles().size()); |
| |
| stop(); |
| } |
| |
| public void testCreatingLocalDirectoryChangesLastModified() throws Exception { |
| final long modified = directory.lastModified(); |
| |
| delay(); |
| |
| createDirectory("directory"); |
| |
| delay(); |
| |
| assertTrue(directory.lastModified() != modified); |
| } |
| |
| public void testCreatingLocalFileChangesLastModified() throws Exception { |
| final long modified = directory.lastModified(); |
| |
| delay(); |
| |
| writeFile("file", "file"); |
| |
| delay(); |
| |
| assertTrue(directory.lastModified() != modified); |
| } |
| |
| public void testCreatingSubDirectoryChangesLastModified() throws Exception { |
| createDirectory("dir"); |
| |
| final long modified = directory.lastModified(); |
| |
| delay(); |
| |
| createDirectory("dir/sub"); |
| |
| assertTrue(directory.lastModified() == modified); |
| } |
| |
| public void testCreatingFileInSubDirectoryChangesLastModified() throws Exception { |
| createDirectory("dir"); |
| |
| final long modified = directory.lastModified(); |
| |
| delay(); |
| |
| writeFile("dir/file", "file"); |
| |
| assertTrue(directory.lastModified() == modified); |
| } |
| |
| public void testInterval() throws Exception { |
| |
| final long interval = 1000; |
| |
| start(); |
| fam.setInterval(interval); |
| |
| listener.waitForCheck(); |
| long t1 = System.currentTimeMillis(); |
| |
| listener.waitForCheck(); |
| long t2 = System.currentTimeMillis(); |
| |
| long diff = t2-t1; |
| |
| // interval should be at around the same interval |
| assertTrue("the interval was set to " + interval + " but the time difference was " + diff, (diff > (interval-50)) && (diff < (interval+50))); |
| |
| stop(); |
| } |
| } |