| /* |
| * 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.lambda.itest; |
| |
| import static org.apache.felix.dm.lambda.DependencyManagerActivator.component; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.DependencyManager; |
| import org.junit.Assert; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class ServiceDependencyInjectionTest extends TestBase { |
| public void testServiceInjection() { |
| DependencyManager m = getDM(); |
| Ensure e = new Ensure(); |
| // create a service provider and consumer |
| ServiceProvider provider = new ServiceProvider(e); |
| Component sp = component(m).impl(provider).provides(ServiceInterface2.class.getName()).build(); |
| Component sc = component(m).impl(new ServiceConsumer()).withSvc(ServiceInterface2.class).build(); |
| |
| Component sc2 = component(m) // all dependencies are optional |
| .impl(new ServiceConsumerNamedInjection(false, false)) |
| .withSvc(ServiceInterface2.class, s->s.optional().autoConfig("m_service")) |
| .withSvc(ServiceInterface2.class, s->s.optional().autoConfig("m_service2")) |
| .withSvc(ServiceInterface2.class, s->s.optional().autoConfig("m_service3")) |
| .build(); |
| |
| Component sc3 = component(m) // second dependency is required, first and third are optional |
| .impl(new ServiceConsumerNamedInjection(false, false)) |
| .withSvc(ServiceInterface2.class, s->s.optional().autoConfig("m_service")) |
| .withSvc(ServiceInterface2.class, s->s.required().autoConfig("m_service2")) |
| .withSvc(ServiceInterface2.class, s->s.optional().autoConfig("m_service3")) |
| .build(); |
| |
| Component sc4 = component(m) |
| .impl(new ServiceConsumerNamedInjection(true, false)).build(); |
| Component sc5 = component(m) |
| .impl(new ServiceConsumerNamedInjection(true, true)).build(); |
| m.add(sp); |
| m.add(sc); |
| m.remove(sc); |
| m.add(sc2); |
| m.remove(sc2); |
| m.add(sc3); |
| m.remove(sc4); |
| m.add(sc4); |
| m.remove(sc4); |
| m.add(sc5); |
| m.remove(sc5); |
| m.remove(sp); |
| e.waitForStep(11, 5000); |
| m.clear(); |
| } |
| |
| static interface ServiceInterface { |
| public void invoke(); |
| } |
| |
| static interface ServiceInterface2 extends ServiceInterface { |
| public void invoke2(); |
| } |
| |
| static class ServiceProvider implements ServiceInterface2 { |
| private final Ensure m_ensure; |
| private Ensure.Steps m_invokeSteps = new Ensure.Steps(4, 5, 7, 8, 10, 11, 13, 14); |
| private Ensure.Steps m_invoke2Steps = new Ensure.Steps(1, 2, 3, 6, 9, 12); |
| |
| public ServiceProvider(Ensure e) { |
| m_ensure = e; |
| } |
| |
| public void invoke() { |
| System.out.println("invoke"); |
| m_ensure.steps(m_invokeSteps); |
| } |
| |
| public void invoke2() { |
| System.out.println("invoke2"); |
| m_ensure.steps(m_invoke2Steps); |
| } |
| } |
| |
| static class ServiceConsumer { |
| private volatile ServiceInterface2 m_service; |
| private volatile ServiceInterface2 m_service2; |
| |
| public void init() { |
| // invoke the second method of the interface via both injected members, to ensure |
| // neither of them is a null object (or null) |
| m_service.invoke2(); |
| m_service2.invoke2(); |
| Assert.assertEquals("Both members should have been injected with the same service.", m_service, m_service2); |
| } |
| } |
| |
| class ServiceConsumerNamedInjection { |
| private volatile ServiceInterface2 m_service; |
| private volatile ServiceInterface m_service2; |
| private volatile Object m_service3; |
| private final boolean m_secondDependencyRequired; |
| private final boolean m_instanceBound; |
| |
| ServiceConsumerNamedInjection(boolean instanceBound, boolean withSecondRequired) { |
| m_secondDependencyRequired = withSecondRequired; |
| m_instanceBound = instanceBound; |
| } |
| |
| public void init(Component c) { |
| if (m_instanceBound) { |
| DependencyManager m = c.getDependencyManager(); |
| c.add(m.createServiceDependency().setService(ServiceInterface2.class).setRequired(false).setAutoConfig("m_service"), |
| m.createServiceDependency().setService(ServiceInterface2.class).setRequired(m_secondDependencyRequired).setAutoConfig("m_service2"), |
| m.createServiceDependency().setService(ServiceInterface2.class).setRequired(false).setAutoConfig("m_service3")); |
| } else { |
| check(); |
| } |
| } |
| |
| public void start() { |
| if (m_instanceBound) { |
| check(); |
| } |
| } |
| |
| public void check() { |
| warn("ServiceConsumerNamedInjectionInstanceBound: m_service=%s, m_service2=%s, m_service3=%s", m_service, m_service2, m_service3); |
| // invoke the second method |
| m_service.invoke2(); |
| // invoke the first method (twice) |
| m_service2.invoke(); |
| ((ServiceInterface) m_service3).invoke(); |
| Assert.assertNotNull("Should have been injected", m_service); |
| Assert.assertNotNull("Should have been injected", m_service2); |
| Assert.assertNotNull("Should have been injected", m_service3); |
| Assert.assertEquals("Members should have been injected with the same service.", m_service, m_service2); |
| Assert.assertEquals("Members should have been injected with the same service.", m_service, m_service3); |
| } |
| } |
| } |