| /* |
| * 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.itest.api; |
| |
| import java.net.URL; |
| import java.util.Hashtable; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.ComponentState; |
| import org.apache.felix.dm.ComponentStateListener; |
| import org.apache.felix.dm.Dependency; |
| import org.apache.felix.dm.DependencyManager; |
| import org.apache.felix.dm.ResourceHandler; |
| import org.apache.felix.dm.itest.util.Ensure; |
| import org.apache.felix.dm.itest.util.TestBase; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class ResourceAdapterDependencyAddAndRemoveTest2 extends TestBase { |
| public void testBasicResourceAdapter() throws Exception { |
| DependencyManager m = getDM(); |
| // helper class that ensures certain steps get executed in sequence |
| Ensure e = new Ensure(); |
| // create a resource provider |
| ResourceProvider provider = new ResourceProvider(context, new URL("file://localhost/path/to/file1.txt")); |
| // activate it |
| Hashtable<String, String> props = new Hashtable<String, String>(); |
| props.put("id", "1"); |
| m.add(m.createComponent() |
| .setInterface(ServiceInterface.class.getName(), props) |
| .setImplementation(new ServiceProvider(e)) |
| ); |
| |
| props = new Hashtable<String, String>(); |
| props.put("id", "2"); |
| m.add(m.createComponent() |
| .setInterface(ServiceInterface.class.getName(), props) |
| .setImplementation(new ServiceProvider(e)) |
| ); |
| |
| m.add(m.createComponent() |
| .setImplementation(provider) |
| .add(m.createServiceDependency() |
| .setService(ResourceHandler.class) |
| .setCallbacks("add", "remove") |
| ) |
| ); |
| |
| // create a resource adapter for our single resource |
| // note that we can provide an actual implementation instance here because there will be only one |
| // adapter, normally you'd want to specify a Class here |
| Dependency d = m.createServiceDependency().setService(ServiceInterface.class, "(id=1)").setRequired(true); |
| ResourceAdapter service = new ResourceAdapter(e, d); |
| |
| CallbackInstance callbackInstance = new CallbackInstance(e, d); |
| Component component = m.createResourceAdapterService("(&(path=/path/to/*.txt)(host=localhost))", false, callbackInstance, "changed") |
| .setImplementation(service) |
| .setCallbacks(callbackInstance, "init", "start", "stop", "destroy"); |
| component.add(new ComponentStateListenerImpl(e)); |
| m.add(component); |
| // wait until the single resource is available |
| e.waitForStep(1, 5000); |
| // trigger a 'change' in our resource |
| provider.change(); |
| // wait until the changed callback is invoked |
| e.waitForStep(2, 5000); |
| |
| System.out.println("Done!"); |
| m.clear(); |
| } |
| |
| static class ResourceAdapter { |
| protected URL m_resource; // injected by reflection. |
| final Dependency m_dependency; |
| |
| ResourceAdapter(Ensure e, Dependency d) { |
| m_dependency = d; |
| } |
| } |
| |
| static interface ServiceInterface { |
| public void invoke(); |
| } |
| |
| static class ServiceProvider implements ServiceInterface { |
| public ServiceProvider(Ensure e) { |
| } |
| public void invoke() { |
| } |
| } |
| |
| static class CallbackInstance { |
| private final Ensure m_ensure; |
| private final Dependency m_dependency; |
| |
| public CallbackInstance(Ensure e, Dependency d) { |
| m_ensure = e; |
| m_dependency = d; |
| } |
| |
| void init(Component c) { |
| c.add(m_dependency); |
| System.out.println("init"); |
| m_ensure.step(1); |
| } |
| |
| void start() { |
| System.out.println("start"); |
| } |
| |
| void stop() { |
| System.out.println("stop"); |
| } |
| |
| void destroy() { |
| System.out.println("destroy"); |
| } |
| |
| void changed(Component component) { |
| m_ensure.step(2); |
| System.out.println("Changing the dependencies"); |
| Dependency oldDependency = m_dependency; |
| |
| // and add a new dependency |
| component.add(component.getDependencyManager().createServiceDependency().setService(ServiceInterface.class, "(id=2)").setRequired(true)); |
| // remove the old dependency |
| component.remove(oldDependency); |
| System.out.println("Changed the dependencies"); |
| } |
| } |
| |
| static class ComponentStateListenerImpl implements ComponentStateListener { |
| public ComponentStateListenerImpl(Ensure e) { |
| } |
| |
| @Override |
| public void changed(Component c, ComponentState state) { |
| switch (state) { |
| case INACTIVE: |
| System.out.println("INACTIVE"); |
| break; |
| case INSTANTIATED_AND_WAITING_FOR_REQUIRED: |
| System.out.println("INSTANTIATED_AND_WAITING_FOR_REQUIRED"); |
| break; |
| case WAITING_FOR_REQUIRED: |
| System.out.println("WAITING_FOR_REQUIRED"); |
| break; |
| case TRACKING_OPTIONAL: |
| System.out.println("TRACKING_OPTIONAL"); |
| break; |
| |
| } |
| } |
| } |
| } |