/* * Copyright 2002-2009 the original author or authors. * * Licensed 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.springframework.flex.samples.integration; import java.util.concurrent.atomic.AtomicInteger; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * * @author Mark Fisher * @author Jeremy Grelle */ public class Counter { private volatile boolean running; private final Log log = LogFactory.getLog(Counter.class); private final AtomicInteger count = new AtomicInteger(); public Integer next() { return this.running ? this.count.getAndIncrement() : null; } public void handle(String message) { if ("start".equalsIgnoreCase(message)) { this.running = true; } else if ("stop".equalsIgnoreCase(message)) { this.running = false; } else { try { this.count.set(Integer.parseInt(message)); } catch (NumberFormatException e) { this.log.info("UNSUPPORTED FLEX MESSAGE RECEIVED: " + message); } } } }