| /* |
| * 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.felix.dm.itest.api; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.ComponentState; |
| import org.apache.felix.dm.ComponentStateListener; |
| import org.apache.felix.dm.DependencyManager; |
| import org.apache.felix.dm.itest.util.Ensure; |
| import org.apache.felix.dm.itest.util.TestBase; |
| import org.junit.Assert; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.ServiceRegistration; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class ComponentStateListenerTest extends TestBase { |
| |
| public void testComponentLifeCycleCallbacks() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| // create a simple service component |
| Component s = m.createComponent().setImplementation(new ComponentInstance(e)); |
| // add it, and since it has no dependencies, it should be activated immediately |
| m.add(s); |
| // remove it so it gets destroyed |
| m.remove(s); |
| // ensure we executed all steps inside the component instance |
| e.step(6); |
| } |
| |
| static class ComponentInstance { |
| private final Ensure m_ensure; |
| public ComponentInstance(Ensure e) { |
| m_ensure = e; |
| m_ensure.step(1); |
| } |
| public void init() { |
| m_ensure.step(2); |
| } |
| public void start() { |
| m_ensure.step(3); |
| } |
| public void stop() { |
| m_ensure.step(4); |
| } |
| public void destroy() { |
| m_ensure.step(5); |
| } |
| } |
| |
| public void testCustomComponentLifeCycleCallbacks() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| // create a simple service component |
| Component s = m.createComponent() .setImplementation(new CustomComponentInstance(e)).setCallbacks("a", "b", "c", "d"); |
| // add it, and since it has no dependencies, it should be activated immediately |
| m.add(s); |
| // remove it so it gets destroyed |
| m.remove(s); |
| // ensure we executed all steps inside the component instance |
| e.step(6); |
| } |
| |
| static class CustomComponentInstance { |
| private final Ensure m_ensure; |
| public CustomComponentInstance(Ensure e) { |
| m_ensure = e; |
| m_ensure.step(1); |
| } |
| public void a() { |
| m_ensure.step(2); |
| } |
| public void b() { |
| m_ensure.step(3); |
| } |
| public void c() { |
| m_ensure.step(4); |
| } |
| public void d() { |
| m_ensure.step(5); |
| } |
| } |
| |
| public void testComponentStateListingLifeCycle() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| // create a simple service component |
| ComponentStateListeningInstance implementation = new ComponentStateListeningInstance(e); |
| Component s = m.createComponent().setInterface(MyInterface.class.getName(), null).setImplementation(implementation); |
| // add the state listener |
| s.add(implementation); |
| // add it, and since it has no dependencies, it should be activated immediately |
| m.add(s); |
| // remove it so it gets destroyed |
| m.remove(s); |
| // remove the state listener |
| s.remove(implementation); |
| // ensure we executed all steps inside the component instance |
| e.step(10); |
| } |
| |
| public static interface MyInterface {} |
| |
| static class ComponentStateListeningInstance implements MyInterface, ComponentStateListener { |
| volatile ServiceRegistration m_registration; |
| private final Ensure m_ensure; |
| |
| public ComponentStateListeningInstance(Ensure e) { |
| m_ensure = e; |
| m_ensure.step(1); |
| } |
| |
| private void debug() { |
| StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace(); |
| System.out.println("AT: " + stackTrace[2].getClassName() + "." + stackTrace[2].getMethodName() + "():" + stackTrace[2].getLineNumber()); |
| } |
| |
| public void init(Component c) { |
| debug(); |
| m_ensure.step(2); |
| } |
| |
| public void start(Component c) { |
| debug(); |
| m_ensure.step(4); |
| } |
| public void stop(Component c) { |
| debug(); |
| m_ensure.step(7); |
| } |
| |
| public void destroy(Component c) { |
| debug(); |
| m_ensure.step(9); |
| } |
| |
| @Override |
| public void changed(Component c, ComponentState state) { |
| debug(); |
| switch (state) { |
| case STARTING: |
| m_ensure.step(3); |
| break; |
| case TRACKING_OPTIONAL: |
| m_ensure.step(5); |
| ServiceReference reference = m_registration.getReference(); |
| Assert.assertNotNull("Service not yet registered.", reference); |
| break; |
| case STOPPING: |
| m_ensure.step(6); |
| break; |
| case STOPPED: |
| m_ensure.step(8); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| public void testDynamicComponentStateListingLifeCycle() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| // create a simple service component |
| Component s = m.createComponent().setInterface(MyInterface.class.getName(), null).setImplementation(new DynamicComponentStateListeningInstance(e)); |
| // add it, and since it has no dependencies, it should be activated immediately |
| m.add(s); |
| // remove it so it gets destroyed |
| m.remove(s); |
| // ensure we executed all steps inside the component instance |
| e.step(10); |
| } |
| |
| static class DynamicComponentStateListeningInstance implements MyInterface, ComponentStateListener { |
| volatile ServiceRegistration m_registration; |
| private final Ensure m_ensure; |
| |
| public DynamicComponentStateListeningInstance(Ensure e) { |
| m_ensure = e; |
| m_ensure.step(1); |
| } |
| |
| private void debug() { |
| StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace(); |
| System.out.println("AT: " + stackTrace[2].getClassName() + "." + stackTrace[2].getMethodName() + "():" + stackTrace[2].getLineNumber()); |
| } |
| |
| public void init(Component c) { |
| debug(); |
| m_ensure.step(2); |
| c.add(this); |
| } |
| |
| public void start(Component c) { |
| debug(); |
| m_ensure.step(4); |
| } |
| public void stop(Component c) { |
| debug(); |
| m_ensure.step(7); |
| } |
| |
| public void destroy(Component c) { |
| debug(); |
| m_ensure.step(9); |
| c.remove(this); |
| } |
| |
| @Override |
| public void changed(Component c, ComponentState state) { |
| debug(); |
| switch (state) { |
| case STARTING: |
| m_ensure.step(3); |
| break; |
| case TRACKING_OPTIONAL: |
| m_ensure.step(5); |
| ServiceReference reference = m_registration.getReference(); |
| Assert.assertNotNull("Service not yet registered.", reference); |
| break; |
| case STOPPING: |
| m_ensure.step(6); |
| break; |
| case STOPPED: |
| m_ensure.step(8); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| } |