/*
* 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
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*/
package org.apache.felix.dm.test.integration.api;
import org.apache.felix.dm.Component;
import org.apache.felix.dm.DependencyManager;
import org.apache.felix.dm.test.components.Ensure;
import org.apache.felix.dm.test.integration.common.TestBase;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.junit.PaxExam;
@RunWith(PaxExam.class)
public class CompositionTest extends TestBase {
@Test
public void testComposition() {
DependencyManager m = new DependencyManager(context);
// 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))
.setComposition("getComposition")
.add(m.createServiceDependency().setService(ServiceInterface.class).setRequired(true).setCallbacks("add", null));
m.add(sp);
m.add(sc);
// ensure we executed all steps inside the component instance
e.step(6);
m.clear();
}
static interface ServiceInterface {
public void invoke();
}
static class ServiceProvider implements ServiceInterface {
private final Ensure m_ensure;
public ServiceProvider(Ensure e) {
m_ensure = e;
}
public void invoke() {
m_ensure.step(4);
}
}
static class ServiceConsumer {
private final Ensure m_ensure;
private ServiceConsumerComposite m_composite;
private ServiceInterface m_service;
public ServiceConsumer(Ensure e) {
m_ensure = e;
m_composite = new ServiceConsumerComposite(m_ensure);
}
public Object[] getComposition() {
return new Object[] { this, m_composite };
}
void add(ServiceInterface service) {
m_ensure.step(1);
m_service = service; // This method seems to not being called anymore
}
void start() {
m_composite.invoke();
m_ensure.step(5);
}
}
static class ServiceConsumerComposite {
ServiceInterface m_service;
private Ensure m_ensure;
ServiceConsumerComposite(Ensure ensure)
{
m_ensure = ensure;
}
void add(ServiceInterface service) {
m_ensure.step(2);
m_service = service;
}
void invoke()
{
m_ensure.step(3);
m_service.invoke();
}
}
}