| /* |
| * 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.lambda.itest; |
| |
| import static org.apache.felix.dm.lambda.DependencyManagerActivator.component; |
| |
| import java.net.URL; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| import java.util.Properties; |
| |
| import org.apache.felix.dm.Component; |
| import org.apache.felix.dm.DependencyManager; |
| import org.apache.felix.dm.ResourceHandler; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public class ServiceUpdateTest extends TestBase { |
| public void testServiceUpdate() throws Exception { |
| final 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 |
| component(m, comp -> comp |
| .impl(new ServiceProvider(e)) |
| .withSvc(ServiceInterface.class, srv -> srv |
| .add(ServiceProvider::add).change(ServiceProvider::change).remove(ServiceProvider::remove))); |
| component(m, comp -> comp |
| .impl(provider) |
| .withSvc(ResourceHandler.class, srv -> srv.add(ResourceProvider::add).remove(ResourceProvider::remove))); |
| |
| // TODO implement resource adapters in new builder API and use it for the following resource adapter. |
| |
| // 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 |
| CallbackInstance callbackInstance = new CallbackInstance(e); |
| Hashtable<String, String> serviceProps = new Hashtable<String, String>(); |
| serviceProps.put("number", "1"); |
| Component component = m.createResourceAdapterService("(&(path=/path/to/*.txt)(host=localhost))", false, callbackInstance, "changed") |
| .setImplementation(new ResourceAdapter(e)) |
| .setInterface(ServiceInterface.class.getName(), serviceProps) |
| .setCallbacks(callbackInstance, "init", "start", "stop", "destroy"); |
| m.add(component); |
| // wait until the single resource is available |
| e.waitForStep(1, 5000); |
| // wait until the component gets the dependency injected |
| e.waitForStep(2, 5000); |
| // trigger a 'change' in our resource |
| provider.change(); |
| // wait until the changed callback is invoked |
| e.waitForStep(3, 5000); |
| // wait until the changed event arrived at the component |
| e.waitForStep(4, 5000); |
| System.out.println("Done!"); |
| } |
| |
| static class ResourceAdapter implements ServiceInterface { |
| protected URL m_resource; // injected by reflection. |
| |
| ResourceAdapter(Ensure e) { |
| } |
| |
| public void invoke() { |
| // TODO Auto-generated method stub |
| |
| } |
| } |
| |
| static interface ServiceInterface { |
| public void invoke(); |
| } |
| |
| static class ServiceProvider { |
| private final Ensure m_ensure; |
| public ServiceProvider(Ensure e) { |
| m_ensure = e; |
| } |
| void add(ServiceInterface i) { |
| m_ensure.step(2); |
| } |
| void change(ServiceInterface i) { |
| System.out.println("Change..."); |
| m_ensure.step(4); |
| } |
| void remove(ServiceInterface i) { |
| System.out.println("Remove..."); |
| } |
| } |
| |
| static class CallbackInstance { |
| private final Ensure m_ensure; |
| public CallbackInstance(Ensure e) { |
| m_ensure = e; |
| } |
| |
| void init() { |
| System.out.println("init"); |
| } |
| void start() { |
| System.out.println("start"); |
| m_ensure.step(1); |
| } |
| void stop() { |
| System.out.println("stop"); |
| } |
| void destroy() { |
| System.out.println("destroy"); |
| } |
| @SuppressWarnings("unchecked") |
| void changed(Component component) { |
| System.out.println("resource changed"); |
| m_ensure.step(3); |
| |
| Properties newProps = new Properties(); |
| // update the component's service properties |
| Dictionary<String, String> dict = component.getServiceProperties(); |
| Enumeration<String> e = dict.keys(); |
| while (e.hasMoreElements()) { |
| String key = e.nextElement(); |
| String value = dict.get(key); |
| newProps.setProperty(key, value); |
| } |
| newProps.setProperty("new-property", "2"); |
| component.getServiceRegistration().setProperties(newProps); |
| } |
| } |
| } |