| /* |
| * |
| * 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.qpid.proton.example.reactor; |
| |
| import java.io.IOException; |
| |
| import org.apache.qpid.proton.Proton; |
| import org.apache.qpid.proton.engine.BaseHandler; |
| import org.apache.qpid.proton.engine.Event; |
| import org.apache.qpid.proton.reactor.Reactor; |
| |
| // Not every event goes to the reactor's event handler. If we have a |
| // separate handler for something like a scheduled task, then those |
| // events aren't logged by the logger associated with the reactor's |
| // handler. Sometimes this is useful if you don't want to see them, but |
| // sometimes you want the global picture. |
| public class GlobalLogger extends BaseHandler { |
| |
| static class Logger extends BaseHandler { |
| @Override |
| public void onUnhandled(Event event) { |
| System.out.println("LOG: " + event); |
| } |
| } |
| |
| static class Task extends BaseHandler { |
| @Override |
| public void onTimerTask(Event e) { |
| System.out.println("Mission accomplished!"); |
| } |
| } |
| |
| @Override |
| public void onReactorInit(Event event) { |
| System.out.println("Hello, World!"); |
| event.getReactor().schedule(0, new Task()); |
| } |
| |
| @Override |
| public void onReactorFinal(Event e) { |
| System.out.println("Goodbye, World!"); |
| } |
| |
| public static void main(String[] args) throws IOException { |
| Reactor reactor = Proton.reactor(new GlobalLogger()); |
| |
| // In addition to having a regular handler, the reactor also has a |
| // global handler that sees every event. By adding the Logger to the |
| // global handler instead of the regular handler, we can log every |
| // single event that occurs in the system regardless of whether or not |
| // there are specific handlers associated with the objects that are the |
| // target of those events. |
| reactor.getGlobalHandler().add(new Logger()); |
| reactor.run(); |
| } |
| } |