| /* |
| * 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.adapter; |
| import static org.apache.felix.dm.lambda.DependencyManagerActivator.component; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.DependencyManager; |
| |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class AdapterWithExtraDependenciesTest extends TestBase { |
| |
| public void testAdapterWithExtraDependenciesAndCallbacks() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| |
| // create a service adapter that adapts to services S1 and has an optional dependency on services S2 |
| Component sa = adapter(m, S1.class).impl(SA.class).withSvc(S2.class, s2 -> s2.add("add").remove("remove")).build(); |
| m.add(sa); |
| |
| // create a service S1, which triggers the creation of the first adapter instance (A1) |
| Component s1 = component(m).provides(S1.class).impl(new S1Impl()).build(); |
| m.add(s1); |
| |
| // create a service S2, which will be added to A1 |
| Component s2 = component(m).provides(S2.class).impl(new S2Impl(e)).build(); |
| m.add(s2); |
| |
| // create a second service S1, which triggers the creation of the second adapter instance (A2) |
| Component s1b = component(m).provides(S1.class).impl(new S1Impl()).build(); |
| m.add(s1b); |
| |
| // observe that S2 is also added to A2 |
| e.waitForStep(2, 5000); |
| |
| // remove S2 again |
| m.remove(s2); |
| |
| // make sure both adapters have their "remove" callbacks invoked |
| e.waitForStep(4, 5000); |
| |
| m.remove(s1); |
| m.remove(sa); |
| m.clear(); |
| } |
| |
| public void testAdapterWithExtraDependenciesAndCallbacksRef() { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| |
| // create a service adapter that adapts to services S1 and has an optional dependency on services S2 |
| Component sa = adapter(m, S1.class).impl(SA.class).withSvc(S2.class, s2 -> s2.add(SA::add).remove(SA::remove)).build(); |
| m.add(sa); |
| |
| // create a service S1, which triggers the creation of the first adapter instance (A1) |
| Component s1 = component(m).provides(S1.class).impl(new S1Impl()).build(); |
| m.add(s1); |
| |
| // create a service S2, which will be added to A1 |
| Component s2 = component(m).provides(S2.class).impl(new S2Impl(e)).build(); |
| m.add(s2); |
| |
| // create a second service S1, which triggers the creation of the second adapter instance (A2) |
| Component s1b = component(m).provides(S1.class).impl(new S1Impl()).build(); |
| m.add(s1b); |
| |
| // observe that S2 is also added to A2 |
| e.waitForStep(2, 5000); |
| |
| // remove S2 again |
| m.remove(s2); |
| |
| // make sure both adapters have their "remove" callbacks invoked |
| e.waitForStep(4, 5000); |
| |
| m.remove(s1); |
| m.remove(sa); |
| m.clear(); |
| } |
| |
| static interface S1 { |
| } |
| static interface S2 { |
| public void invoke(); |
| } |
| static class S1Impl implements S1 { |
| } |
| static class S2Impl implements S2 { |
| |
| private final Ensure m_e; |
| |
| public S2Impl(Ensure e) { |
| m_e = e; |
| } |
| |
| public void invoke() { |
| m_e.step(); |
| } |
| } |
| |
| public static class SA { |
| volatile S2 s2; |
| |
| public SA() { |
| System.out.println("Adapter created"); |
| } |
| public void init() { |
| System.out.println("Adapter init " + s2); |
| } |
| public void add(S2 s) { |
| System.out.println("adding " + s); |
| s.invoke(); |
| } |
| public void remove(S2 s) { |
| System.out.println("removing " + s); |
| s.invoke(); |
| } |
| } |
| } |