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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
* under the License.
*/
package org.apache.felix.dm.test.integration.api;
import junit.framework.Assert;
import org.apache.felix.dm.Component;
import org.apache.felix.dm.ComponentStateListener;
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.ServiceReference;
import org.osgi.framework.ServiceRegistration;
@RunWith(PaxExam.class)
public class ComponentLifeCycleTest extends TestBase {
@Test
public void testComponentLifeCycleCallbacks() {
DependencyManager m = new DependencyManager(context);
// helper class that ensures certain steps get executed in sequence
Ensure e = new Ensure();
// create a simple service component
Component s = m.createComponent()
.setImplementation(new ComponentInstance(e));
// add it, and since it has no dependencies, it should be activated immediately
m.add(s);
// remove it so it gets destroyed
m.remove(s);
// ensure we executed all steps inside the component instance
e.step(6);
}
static class ComponentInstance {
private final Ensure m_ensure;
public ComponentInstance(Ensure e) {
m_ensure = e;
m_ensure.step(1);
}
public void init() {
m_ensure.step(2);
}
public void start() {
m_ensure.step(3);
}
public void stop() {
m_ensure.step(4);
}
public void destroy() {
m_ensure.step(5);
}
}
@Test
public void testCustomComponentLifeCycleCallbacks() {
DependencyManager m = new DependencyManager(context);
// helper class that ensures certain steps get executed in sequence
Ensure e = new Ensure();
// create a simple service component
Component s = m.createComponent()
.setImplementation(new CustomComponentInstance(e))
.setCallbacks("a", "b", "c", "d");
// add it, and since it has no dependencies, it should be activated immediately
m.add(s);
// remove it so it gets destroyed
m.remove(s);
// ensure we executed all steps inside the component instance
e.step(6);
}
static class CustomComponentInstance {
private final Ensure m_ensure;
public CustomComponentInstance(Ensure e) {
m_ensure = e;
m_ensure.step(1);
}
public void a() {
m_ensure.step(2);
}
public void b() {
m_ensure.step(3);
}
public void c() {
m_ensure.step(4);
}
public void d() {
m_ensure.step(5);
}
}
@Test
public void testComponentStateListingLifeCycle() {
DependencyManager m = new DependencyManager(context);
// helper class that ensures certain steps get executed in sequence
Ensure e = new Ensure();
// create a simple service component
ComponentStateListeningInstance implementation = new ComponentStateListeningInstance(e);
Component s = m.createComponent()
.setInterface(MyInterface.class.getName(), null)
.setImplementation(implementation);
// add the state listener
s.addStateListener(implementation);
// add it, and since it has no dependencies, it should be activated immediately
m.add(s);
// remove it so it gets destroyed
m.remove(s);
// remove the state listener
s.removeStateListener(implementation);
// ensure we executed all steps inside the component instance
e.step(10);
}
public static interface MyInterface {}
static class ComponentStateListeningInstance implements MyInterface, ComponentStateListener {
volatile ServiceRegistration m_registration;
private final Ensure m_ensure;
public ComponentStateListeningInstance(Ensure e) {
m_ensure = e;
m_ensure.step(1);
}
private void debug() {
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
System.out.println("AT: " + stackTrace[2].getClassName() + "." + stackTrace[2].getMethodName() + "():" + stackTrace[2].getLineNumber());
}
public void init(Component c) {
debug();
m_ensure.step(2);
}
public void start(Component c) {
debug();
m_ensure.step(4);
}
public void stop(Component c) {
debug();
m_ensure.step(7);
}
public void destroy(Component c) {
debug();
m_ensure.step(9);
}
public void starting(Component component) {
debug();
m_ensure.step(3);
}
public void started(Component component) {
debug();
m_ensure.step(5);
ServiceReference reference = m_registration.getReference();
Assert.assertNotNull("Service not yet registered.", reference);
}
public void stopping(Component component) {
debug();
m_ensure.step(6);
}
public void stopped(Component component) {
debug();
m_ensure.step(8);
}
}
@Test
public void testDynamicComponentStateListingLifeCycle() {
DependencyManager m = new DependencyManager(context);
// helper class that ensures certain steps get executed in sequence
Ensure e = new Ensure();
// create a simple service component
Component s = m.createComponent()
.setInterface(MyInterface.class.getName(), null)
.setImplementation(new DynamicComponentStateListeningInstance(e));
// add it, and since it has no dependencies, it should be activated immediately
m.add(s);
// remove it so it gets destroyed
m.remove(s);
// ensure we executed all steps inside the component instance
e.step(10);
}
static class DynamicComponentStateListeningInstance implements MyInterface, ComponentStateListener {
volatile ServiceRegistration m_registration;
private final Ensure m_ensure;
public DynamicComponentStateListeningInstance(Ensure e) {
m_ensure = e;
m_ensure.step(1);
}
private void debug() {
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
System.out.println("AT: " + stackTrace[2].getClassName() + "." + stackTrace[2].getMethodName() + "():" + stackTrace[2].getLineNumber());
}
public void init(Component c) {
debug();
m_ensure.step(2);
c.addStateListener(this);
}
public void start(Component c) {
debug();
m_ensure.step(4);
}
public void stop(Component c) {
debug();
m_ensure.step(7);
}
public void destroy(Component c) {
debug();
m_ensure.step(9);
c.removeStateListener(this);
}
public void starting(Component component) {
debug();
m_ensure.step(3);
}
public void started(Component component) {
debug();
m_ensure.step(5);
ServiceReference reference = m_registration.getReference();
Assert.assertNotNull("Service not yet registered.", reference);
}
public void stopping(Component component) {
debug();
m_ensure.step(6);
}
public void stopped(Component component) {
debug();
m_ensure.step(8);
}
}
@Test
public void testDynamicComponentStateListingLifeCycle2() {
DependencyManager m = new DependencyManager(context);
// helper class that ensures certain steps get executed in sequence
Ensure e = new Ensure();
// create a simple service component
Component s = m.createComponent()
.setInterface(MyInterface.class.getName(), null)
.setImplementation(new DynamicComponentStateListeningInstance2(e));
// add it, and since it has no dependencies, it should be activated immediately
m.add(s);
// remove it so it gets destroyed
m.remove(s);
// ensure we executed all steps inside the component instance
e.step(10);
}
static class DynamicComponentStateListeningInstance2 implements MyInterface, ComponentStateListener {
volatile ServiceRegistration m_registration;
private final Ensure m_ensure;
public DynamicComponentStateListeningInstance2(Ensure e) {
m_ensure = e;
m_ensure.step(1);
}
private void debug() {
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
System.out.println("AT: " + stackTrace[2].getClassName() + "." + stackTrace[2].getMethodName() + "():" + stackTrace[2].getLineNumber());
}
public void init(Component c) {
debug();
m_ensure.step(2);
}
public void start(Component c) {
debug();
m_ensure.step(3);
c.addStateListener(this);
}
public void stop(Component c) {
debug();
m_ensure.step(7);
c.removeStateListener(this);
}
public void destroy(Component c) {
debug();
m_ensure.step(9);
}
public void starting(Component component) {
debug();
m_ensure.step(4);
}
public void started(Component component) {
debug();
m_ensure.step(5);
ServiceReference reference = m_registration.getReference();
Assert.assertNotNull("Service not yet registered.", reference);
}
public void stopping(Component component) {
debug();
m_ensure.step(6);
}
public void stopped(Component component) {
debug();
m_ensure.step(8);
}
}
}