Pierre De Rop | faca289 | 2016-01-31 23:27:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.apache.felix.dm.lambda.itest; |
| 20 | |
| 21 | import static org.apache.felix.dm.lambda.DependencyManagerActivator.aspect; |
| 22 | import static org.apache.felix.dm.lambda.DependencyManagerActivator.component; |
| 23 | |
| 24 | import org.apache.felix.dm.Component; |
| 25 | import org.apache.felix.dm.DependencyManager; |
| 26 | |
| 27 | |
| 28 | /** |
| 29 | * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| 30 | */ |
| 31 | public class AspectServiceDependencyWithSwapCallbackTest extends TestBase { |
| 32 | public void testServiceRegistrationAndConsumption() { |
| 33 | DependencyManager m = getDM(); |
| 34 | // helper class that ensures certain steps get executed in sequence |
| 35 | Ensure e = new Ensure(); |
| 36 | // create a service provider and consumer |
| 37 | Component sp = component(m).impl(new ServiceProvider(e)).provides(ServiceInterface.class).build(); |
Pierre De Rop | 1152750 | 2016-02-18 21:07:16 +0000 | [diff] [blame^] | 38 | Component sc = component(m).impl(new ServiceConsumer(e)).withSvc(ServiceInterface.class, s->s.add("add").remove("remove").swap("swap")).build(); |
Pierre De Rop | faca289 | 2016-01-31 23:27:05 +0000 | [diff] [blame] | 39 | Component asp = aspect(m, ServiceInterface.class).rank(100).impl(ServiceProviderAspect.class).build(); |
| 40 | m.add(sp); |
| 41 | m.add(sc); |
| 42 | m.add(asp); |
| 43 | m.remove(asp); |
| 44 | m.remove(sc); |
| 45 | m.remove(sp); |
| 46 | |
| 47 | // ensure we executed all steps inside the component instance |
| 48 | e.step(7); |
| 49 | } |
| 50 | |
| 51 | public void testServiceRegistrationAndConsumptionRef() { |
| 52 | DependencyManager m = getDM(); |
| 53 | // helper class that ensures certain steps get executed in sequence |
| 54 | Ensure e = new Ensure(); |
| 55 | // create a service provider and consumer |
| 56 | ServiceConsumer scimpl = new ServiceConsumer(e); |
| 57 | Component sp = component(m).impl(new ServiceProvider(e)).provides(ServiceInterface.class).build(); |
Pierre De Rop | 1152750 | 2016-02-18 21:07:16 +0000 | [diff] [blame^] | 58 | Component sc = component(m).impl(scimpl).withSvc(ServiceInterface.class, s->s.add(scimpl::add).remove(scimpl::remove).swap(scimpl::swap)).build(); |
Pierre De Rop | faca289 | 2016-01-31 23:27:05 +0000 | [diff] [blame] | 59 | Component asp = aspect(m, ServiceInterface.class).rank(100).impl(ServiceProviderAspect.class).build(); |
| 60 | m.add(sp); |
| 61 | m.add(sc); |
| 62 | m.add(asp); |
| 63 | m.remove(asp); |
| 64 | m.remove(sc); |
| 65 | m.remove(sp); |
| 66 | |
| 67 | // ensure we executed all steps inside the component instance |
| 68 | e.step(7); |
| 69 | } |
| 70 | |
| 71 | static interface ServiceInterface { |
| 72 | public void invoke(String caller); |
| 73 | } |
| 74 | |
| 75 | static class ServiceProvider implements ServiceInterface { |
| 76 | private final Ensure m_ensure; |
| 77 | public ServiceProvider(Ensure e) { |
| 78 | m_ensure = e; |
| 79 | } |
| 80 | public void invoke(String caller) { |
| 81 | if (caller.equals("consumer.init")) { |
| 82 | m_ensure.step(3); |
| 83 | } else if (caller.equals("aspect.consumer.add")) { |
| 84 | m_ensure.step(5); |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | static class ServiceProviderAspect implements ServiceInterface { |
| 90 | private volatile ServiceInterface m_service; |
| 91 | |
| 92 | public ServiceProviderAspect() { |
| 93 | } |
| 94 | |
| 95 | @Override |
| 96 | public void invoke(String caller) { |
| 97 | m_service.invoke("aspect." + caller); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | static class ServiceConsumer { |
| 102 | private volatile ServiceInterface m_service; |
| 103 | private final Ensure m_ensure; |
| 104 | private int swapCount = 0; |
| 105 | |
| 106 | public ServiceConsumer(Ensure e) { |
| 107 | m_ensure = e; |
| 108 | } |
| 109 | |
| 110 | public void init() { |
| 111 | m_ensure.step(2); |
| 112 | m_service.invoke("consumer.init"); |
| 113 | } |
| 114 | |
| 115 | public void destroy() { |
| 116 | m_ensure.step(6); |
| 117 | } |
| 118 | |
| 119 | public void add(ServiceInterface service) { |
| 120 | m_service = service; |
| 121 | m_ensure.step(1); |
| 122 | } |
| 123 | |
| 124 | public void remove(ServiceInterface service) { |
| 125 | m_service = null; |
| 126 | } |
| 127 | |
| 128 | public void swap(ServiceInterface previous, ServiceInterface current) { |
| 129 | switch (swapCount) { |
| 130 | case 0: m_ensure.step(4); |
| 131 | break; |
| 132 | case 1: m_ensure.step(5); |
| 133 | break; |
| 134 | default: |
| 135 | } |
| 136 | m_service = current; |
| 137 | swapCount ++; |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | } |