| /* |
| * 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 java.util.concurrent.CompletableFuture; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.DependencyManager; |
| import org.junit.Assert; |
| |
| /** |
| * CompletableFuture Dependency test. |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class CFDependencyTest extends TestBase { |
| private final Ensure m_ensure = new Ensure(); |
| |
| public void testComponentWithCFDependencyDefinedFromInit() throws Exception { |
| final DependencyManager dm = getDM(); |
| |
| // Create a consumer depending on a Provider and on the result of a CF. |
| // (the CF dependency is added from the Consumer.init() method). |
| CompletableFuture<String> cf = new CompletableFuture<>(); |
| Component consumer = component(dm).impl(new Consumer(cf)).withSvc(Provider.class, true).build(); |
| |
| // Create provider |
| Component provider = component(dm).impl(new ProviderImpl()).provides(Provider.class).build(); |
| |
| dm.add(consumer); |
| dm.add(provider); |
| |
| // Sets the result in the CF: this will normally trigger the activation of the Consumer component. |
| cf.complete("cfFesult"); |
| |
| m_ensure.waitForStep(3, 5000); |
| dm.clear(); |
| } |
| |
| public static interface Provider { |
| void invoke(); |
| } |
| |
| public class ProviderImpl implements Provider { |
| @Override |
| public void invoke() { |
| m_ensure.step(3); |
| } |
| } |
| |
| public class Consumer { |
| private Provider m_provider; // injected |
| private String m_cfResult; // injected |
| private final CompletableFuture<String> m_cf; |
| |
| Consumer(CompletableFuture<String> cf) { |
| m_cf = cf; |
| } |
| |
| void init(Component c) { |
| component(c, comp -> comp.withFuture(m_cf, result -> result.complete(this::add))); |
| } |
| |
| void add(String cfResult) { |
| m_cfResult = cfResult; |
| Assert.assertNotNull(m_cfResult); |
| Assert.assertEquals("cfFesult", m_cfResult); |
| m_ensure.step(1); |
| } |
| |
| void start() { |
| Assert.assertNotNull(m_provider); |
| m_ensure.step(2); |
| m_provider.invoke(); |
| } |
| } |
| } |