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* Licensed to the Apache Software Foundation (ASF) under one
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* 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 java.util.Properties;
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;
import org.osgi.framework.Constants;
@RunWith(PaxExam.class)
public class MultipleServiceDependencyTest extends TestBase {
@Test
public void testMultipleServiceRegistrationAndConsumption() {
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 provider = m.createComponent().setImplementation(new ServiceProvider(e)).setInterface(ServiceInterface.class.getName(), null);
Component providerWithHighRank = m.createComponent().setImplementation(new ServiceProvider2(e)).setInterface(ServiceInterface.class.getName(), new Properties() {{ put(Constants.SERVICE_RANKING, Integer.valueOf(5)); }});
Component consumer = m.createComponent().setImplementation(new ServiceConsumer(e)).add(m.createServiceDependency().setService(ServiceInterface.class).setRequired(true));
m.add(provider);
m.add(providerWithHighRank);
m.add(consumer);
e.waitForStep(3, 15000);
m.remove(providerWithHighRank);
e.step(4);
e.waitForStep(5, 15000);
m.remove(provider);
m.remove(consumer);
e.waitForStep(6, 15000);
}
@Test
public void testReplacementAutoConfig() {
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 provider = m.createComponent().setImplementation(new ServiceProvider(e)).setInterface(ServiceInterface.class.getName(), null);
Component provider2 = m.createComponent().setImplementation(new ServiceProvider2(e)).setInterface(ServiceInterface.class.getName(), null);
Component consumer = m.createComponent().setImplementation(new ServiceConsumer(e)).add(m.createServiceDependency().setService(ServiceInterface.class).setRequired(true));
m.add(provider2);
m.add(consumer);
e.waitForStep(3, 15000);
m.add(provider);
m.remove(provider2);
e.step(4);
e.waitForStep(5, 15000);
m.remove(provider);
m.remove(consumer);
e.waitForStep(6, 15000);
}
@Test
public void testReplacementCallbacks() {
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 provider = m.createComponent().setImplementation(new ServiceProvider(e)).setInterface(ServiceInterface.class.getName(), null);
Component provider2 = m.createComponent().setImplementation(new ServiceProvider2(e)).setInterface(ServiceInterface.class.getName(), null);
Component consumer = m.createComponent().setImplementation(new ServiceConsumer(e))
.add(m.createServiceDependency()
.setService(ServiceInterface.class)
.setRequired(true)
.setCallbacks("add", "remove"));
m.add(provider2);
m.add(consumer);
e.waitForStep(3, 15000);
m.add(provider);
m.remove(provider2);
e.step(4);
e.waitForStep(5, 15000);
m.remove(provider);
m.remove(consumer);
e.waitForStep(6, 15000);
}
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(5);
}
}
static class ServiceProvider2 implements ServiceInterface {
private final Ensure m_ensure;
public ServiceProvider2(Ensure e) {
m_ensure = e;
}
public void invoke() {
m_ensure.step(2);
}
}
static class ServiceConsumer implements Runnable {
private volatile ServiceInterface m_service;
private final Ensure m_ensure;
private void add(ServiceInterface service) { m_service = service; }
private void remove(ServiceInterface service) { if (m_service == service) { m_service = null; }};
public ServiceConsumer(Ensure e) { m_ensure = e; }
public void start() {
Thread t = new Thread(this);
t.start();
}
public void run() {
m_ensure.step(1);
m_service.invoke();
m_ensure.step(3);
m_ensure.waitForStep(4, 15000);
m_service.invoke();
}
public void stop() {
m_ensure.step(6);
}
}
}