| /* |
| * 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.DependencyManager; |
| import org.apache.felix.dm.itest.util.Ensure; |
| import org.apache.felix.dm.itest.util.TestBase; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class AspectChainTest extends TestBase { |
| |
| public void testBuildAspectChain() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| // create a service provider and consumer |
| Component sp = m.createComponent().setImplementation(new ServiceProvider(e)).setInterface(ServiceInterface.class.getName(), null); |
| Component sc = m.createComponent().setImplementation(new ServiceConsumer(e)).add(m.createServiceDependency().setService(ServiceInterface.class).setRequired(true)); |
| Component sa2 = m.createAspectService(ServiceInterface.class, null, 20, null).setImplementation(new ServiceAspect(e, 3)); |
| Component sa3 = m.createAspectService(ServiceInterface.class, null, 30, null).setImplementation(new ServiceAspect(e, 2)); |
| Component sa1 = m.createAspectService(ServiceInterface.class, null, 10, null).setImplementation(new ServiceAspect(e, 4)); |
| m.add(sc); |
| |
| m.add(sp); |
| m.add(sa2); |
| m.add(sa3); |
| m.add(sa1); |
| e.step(); |
| e.waitForStep(5, 5000); |
| |
| m.remove(sa3); |
| m.remove(sa2); |
| m.remove(sa1); |
| m.remove(sp); |
| |
| m.remove(sc); |
| } |
| |
| static interface ServiceInterface { |
| public void invoke(Runnable run); |
| } |
| |
| static class ServiceProvider implements ServiceInterface { |
| @SuppressWarnings("unused") |
| private final Ensure m_ensure; |
| public ServiceProvider(Ensure e) { |
| m_ensure = e; |
| } |
| public void invoke(Runnable run) { |
| run.run(); |
| } |
| } |
| |
| static class ServiceAspect implements ServiceInterface { |
| private final Ensure m_ensure; |
| private volatile ServiceInterface m_parentService; |
| private final int m_step; |
| |
| public ServiceAspect(Ensure e, int step) { |
| m_ensure = e; |
| m_step = step; |
| } |
| public void start() { |
| } |
| |
| public void invoke(Runnable run) { |
| m_ensure.step(m_step); |
| m_parentService.invoke(run); |
| } |
| |
| public void stop() { |
| } |
| } |
| |
| static class ServiceConsumer implements Runnable { |
| private volatile ServiceInterface m_service; |
| private final Ensure m_ensure; |
| |
| public ServiceConsumer(Ensure e) { |
| m_ensure = e; |
| } |
| |
| public void init() { |
| Thread t = new Thread(this); |
| t.start(); |
| } |
| |
| public void run() { |
| m_ensure.waitForStep(1, 2000); |
| m_service.invoke(Ensure.createRunnableStep(m_ensure, 5)); |
| } |
| } |
| } |