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* 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.test.integration.api;
import java.util.Hashtable;
import junit.framework.Assert;
import org.apache.felix.dm.DependencyManager;
import org.apache.felix.dm.ServiceUtil;
import org.apache.felix.dm.test.integration.common.TestBase;
import org.apache.felix.dm.tracker.ServiceTracker;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.junit.PaxExam;
import org.osgi.framework.Constants;
import org.osgi.framework.ServiceRegistration;
@RunWith(PaxExam.class)
public class ServiceTrackerTest extends TestBase {
@Test
public void testPlainServiceTracker() {
ServiceTracker st = new ServiceTracker(context, ServiceInterface.class.getName(), null);
st.open();
ServiceRegistration sr = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(), null);
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
sr.unregister();
Assert.assertNull("There should be no service that matches the tracker", st.getServices());
st.close();
}
@Test
public void testAspectServiceTracker() {
ServiceTracker st = new ServiceTracker(context, ServiceInterface.class.getName(), null);
st.open();
ServiceRegistration sr = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(), null);
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
final long sid = ServiceUtil.getServiceId(sr.getReference());
ServiceRegistration asr = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(),
new Hashtable() {{ put(DependencyManager.ASPECT, sid); put(Constants.SERVICE_RANKING, 10); }});
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertEquals("Service ranking should be 10", Integer.valueOf(10), (Integer) st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
ServiceRegistration asr2 = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(),
new Hashtable() {{ put(DependencyManager.ASPECT, sid); put(Constants.SERVICE_RANKING, 20); }});
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertEquals("Service ranking should be 20", Integer.valueOf(20), (Integer) st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
asr.unregister();
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertEquals("Service ranking should be 20", Integer.valueOf(20), (Integer) st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
asr2.unregister();
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertNull("Service should not have a ranking", st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
sr.unregister();
Assert.assertNull("There should be no service that matches the tracker", st.getServices());
st.close();
}
@Test
public void testExistingAspectServiceTracker() {
ServiceTracker st = new ServiceTracker(context, ServiceInterface.class.getName(), null);
ServiceRegistration sr = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(), null);
final long sid = ServiceUtil.getServiceId(sr.getReference());
ServiceRegistration asr = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(),
new Hashtable() {{ put(DependencyManager.ASPECT, sid); put(Constants.SERVICE_RANKING, 10); }});
ServiceRegistration asr2 = context.registerService(ServiceInterface.class.getName(), new ServiceProvider(),
new Hashtable() {{ put(DependencyManager.ASPECT, sid); put(Constants.SERVICE_RANKING, 20); }});
st.open();
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertEquals("Service ranking should be 20", Integer.valueOf(20), (Integer) st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
asr2.unregister();
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertEquals("Service ranking should be 10", Integer.valueOf(10), (Integer) st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
asr.unregister();
Assert.assertEquals("There should be one service that matches the tracker", 1, st.getServices().length);
Assert.assertNull("Service should not have a ranking", st.getServiceReference().getProperty(Constants.SERVICE_RANKING));
sr.unregister();
Assert.assertNull("There should be no service that matches the tracker", st.getServices());
st.close();
}
static interface ServiceInterface {
public void invoke();
}
static class ServiceProvider implements ServiceInterface {
public void invoke() {
}
}
}