Added a test that validates aspect chaining, creating 3 aspects on top of the original service and invoking the service, triggering calls through the whole chain.
git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@918550 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/dependencymanager/test/src/test/java/org/apache/felix/dm/test/AspectChainTest.java b/dependencymanager/test/src/test/java/org/apache/felix/dm/test/AspectChainTest.java
new file mode 100644
index 0000000..32f398d
--- /dev/null
+++ b/dependencymanager/test/src/test/java/org/apache/felix/dm/test/AspectChainTest.java
@@ -0,0 +1,108 @@
+package org.apache.felix.dm.test;
+
+import static org.ops4j.pax.exam.CoreOptions.mavenBundle;
+import static org.ops4j.pax.exam.CoreOptions.options;
+import static org.ops4j.pax.exam.CoreOptions.provision;
+
+import org.apache.felix.dm.DependencyManager;
+import org.apache.felix.dm.service.Service;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.ops4j.pax.exam.Option;
+import org.ops4j.pax.exam.junit.Configuration;
+import org.ops4j.pax.exam.junit.JUnit4TestRunner;
+import org.osgi.framework.BundleContext;
+
+@RunWith(JUnit4TestRunner.class)
+public class AspectChainTest extends Base {
+ @Configuration
+ public static Option[] configuration() {
+ return options(
+ provision(
+ mavenBundle().groupId("org.osgi").artifactId("org.osgi.compendium").version("4.1.0"),
+ mavenBundle().groupId("org.apache.felix").artifactId("org.apache.felix.dependencymanager").versionAsInProject()
+ )
+ );
+ }
+
+ @Test
+ public void testBuildAspectChain(BundleContext context) {
+ 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
+ Service sp = m.createService().setImplementation(new ServiceProvider(e)).setInterface(ServiceInterface.class.getName(), null);
+ Service sc = m.createService().setImplementation(new ServiceConsumer(e)).add(m.createServiceDependency().setService(ServiceInterface.class).setRequired(true));
+ Service sa2 = m.createAspectService(ServiceInterface.class, null, 20, new ServiceAspect(e, 3), null);
+ Service sa3 = m.createAspectService(ServiceInterface.class, null, 30, new ServiceAspect(e, 2), null);
+ Service sa1 = m.createAspectService(ServiceInterface.class, null, 10, new ServiceAspect(e, 4), null);
+ m.add(sc);
+
+ m.add(sp);
+ m.add(sa2);
+ m.add(sa3);
+ m.add(sa1);
+ e.step();
+
+ m.remove(sa3);
+ m.remove(sa2);
+ m.remove(sa1);
+ m.remove(sp);
+
+ m.remove(sc);
+ }
+
+ static interface ServiceInterface {
+ public void invoke(Runnable run);
+ }
+
+ static class ServiceProvider implements ServiceInterface {
+ private final Ensure m_ensure;
+ public ServiceProvider(Ensure e) {
+ m_ensure = e;
+ }
+ public void invoke(Runnable run) {
+ run.run();
+ }
+ }
+
+ static class ServiceAspect implements ServiceInterface {
+ private final Ensure m_ensure;
+ private volatile ServiceInterface m_parentService;
+ private final int m_step;
+
+ public ServiceAspect(Ensure e, int step) {
+ m_ensure = e;
+ m_step = step;
+ }
+ public void start() {
+ }
+
+ public void invoke(Runnable run) {
+ m_ensure.step(m_step);
+ m_parentService.invoke(run);
+ }
+
+ public void stop() {
+ }
+ }
+
+ static class ServiceConsumer implements Runnable {
+ private volatile ServiceInterface m_service;
+ private final Ensure m_ensure;
+
+ public ServiceConsumer(Ensure e) {
+ m_ensure = e;
+ }
+
+ public void init() {
+ Thread t = new Thread(this);
+ t.start();
+ }
+
+ public void run() {
+ m_ensure.waitForStep(1, 2000);
+ m_service.invoke(Ensure.createRunnableStep(m_ensure, 5));
+ }
+ }
+}