| /* |
| * 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; |
| |
| import java.io.File; |
| |
| import org.apache.commons.jci.classes.ExtendedDump; |
| import org.apache.commons.jci.classes.SimpleDump; |
| import org.apache.commons.jci.listeners.ReloadingListener; |
| import org.apache.commons.jci.monitor.FilesystemAlterationMonitor; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * |
| * @author tcurdt |
| */ |
| public final class ReloadingClassLoaderTestCase extends AbstractTestCase { |
| |
| private final Log log = LogFactory.getLog(ReloadingClassLoaderTestCase.class); |
| |
| private ReloadingClassLoader classloader; |
| private ReloadingListener listener; |
| private FilesystemAlterationMonitor fam; |
| |
| private final byte[] clazzSimple1; |
| private final byte[] clazzSimple2; |
| private final byte[] clazzExtended; |
| |
| public ReloadingClassLoaderTestCase() throws Exception { |
| clazzSimple1 = SimpleDump.dump("Simple1"); |
| clazzSimple2 = SimpleDump.dump("Simple2"); |
| clazzExtended = ExtendedDump.dump(); |
| assertTrue(clazzSimple1.length > 0); |
| assertTrue(clazzSimple2.length > 0); |
| assertTrue(clazzExtended.length > 0); |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| classloader = new ReloadingClassLoader(this.getClass().getClassLoader()); |
| listener = new ReloadingListener(); |
| |
| listener.addReloadNotificationListener(classloader); |
| |
| fam = new FilesystemAlterationMonitor(); |
| fam.addListener(directory, listener); |
| fam.start(); |
| } |
| |
| public void testCreate() throws Exception { |
| listener.waitForFirstCheck(); |
| |
| log.debug("creating class"); |
| writeFile("jci/Simple.class", clazzSimple1); |
| listener.waitForCheck(); |
| |
| final Object simple = classloader.loadClass("jci.Simple").newInstance(); |
| assertEquals("Simple1", simple.toString()); |
| } |
| |
| public void testChange() throws Exception { |
| listener.waitForFirstCheck(); |
| |
| log.debug("creating class"); |
| writeFile("jci/Simple.class", clazzSimple1); |
| listener.waitForCheck(); |
| |
| final Object simple1 = classloader.loadClass("jci.Simple").newInstance(); |
| assertEquals("Simple1", simple1.toString()); |
| |
| log.debug("changing class"); |
| writeFile("jci/Simple.class", clazzSimple2); |
| listener.waitForEvent(); |
| |
| final Object simple2 = classloader.loadClass("jci.Simple").newInstance(); |
| assertEquals("Simple2", simple2.toString()); |
| } |
| |
| public void testDelete() throws Exception { |
| listener.waitForFirstCheck(); |
| |
| log.debug("creating class"); |
| writeFile("jci/Simple.class", clazzSimple1); |
| listener.waitForCheck(); |
| |
| final Object simple = classloader.loadClass("jci.Simple").newInstance(); |
| assertEquals("Simple1", simple.toString()); |
| |
| log.debug("deleting class"); |
| assertTrue(new File(directory, "jci/Simple.class").delete()); |
| listener.waitForEvent(); |
| |
| try { |
| classloader.loadClass("jci.Simple").newInstance(); |
| fail(); |
| } catch(final ClassNotFoundException e) { |
| assertEquals("jci.Simple", e.getMessage()); |
| } |
| } |
| |
| public void testDeleteDependency() throws Exception { |
| listener.waitForFirstCheck(); |
| |
| log.debug("creating classes"); |
| writeFile("jci/Simple.class", clazzSimple1); |
| writeFile("jci/Extended.class", clazzExtended); |
| listener.waitForCheck(); |
| |
| final Object simple = classloader.loadClass("jci.Simple").newInstance(); |
| assertEquals("Simple1", simple.toString()); |
| |
| final Object extended = classloader.loadClass("jci.Extended").newInstance(); |
| assertEquals("Extended:Simple1", extended.toString()); |
| |
| log.debug("deleting class dependency"); |
| assertTrue(new File(directory, "jci/Simple.class").delete()); |
| listener.waitForEvent(); |
| |
| try { |
| classloader.loadClass("jci.Extended").newInstance(); |
| fail(); |
| } catch(final NoClassDefFoundError e) { |
| assertEquals("jci/Simple", e.getMessage()); |
| } |
| } |
| |
| public void testClassNotFound() { |
| try { |
| classloader.loadClass("bla"); |
| fail(); |
| } catch(final ClassNotFoundException e) { |
| } |
| } |
| |
| public void testDelegation() { |
| classloader.clearAssertionStatus(); |
| classloader.setClassAssertionStatus("org.apache.commons.jci.ReloadingClassLoader", true); |
| classloader.setDefaultAssertionStatus(false); |
| classloader.setPackageAssertionStatus("org.apache.commons.jci", true); |
| // FIXME: compare with delegation |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| fam.removeListener(listener); |
| fam.stop(); |
| super.tearDown(); |
| } |
| |
| } |