Java tutorial
/* * 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.commons.scxml.env; import java.io.Serializable; import java.util.List; import java.util.Map; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.commons.scxml.EventDispatcher; import org.w3c.dom.Node; /** * Trivial EventDispatcher implementation. * No remote eventing. * */ public final class SimpleDispatcher implements EventDispatcher, Serializable { /** Serial version UID. */ private static final long serialVersionUID = 1L; /** Implementation independent log category. */ private Log log = LogFactory.getLog(EventDispatcher.class); /** * Constructor. */ public SimpleDispatcher() { super(); } /** * @see EventDispatcher#cancel(String) */ public void cancel(final String sendId) { if (log.isInfoEnabled()) { log.info("cancel( sendId: " + sendId + ")"); } } /** @see EventDispatcher#send(String,String,String,String,Map,Object,long,List) */ public void send(final String sendId, final String target, final String type, final String event, final Map<String, Object> params, final Object hints, final long delay, final List<Node> externalNodes) { if (log.isInfoEnabled()) { StringBuffer buf = new StringBuffer(); buf.append("send ( sendId: ").append(sendId); buf.append(", target: ").append(target); buf.append(", type: ").append(type); buf.append(", event: ").append(event); buf.append(", params: ").append(String.valueOf(params)); buf.append(", hints: ").append(String.valueOf(hints)); buf.append(", delay: ").append(delay); buf.append(')'); log.info(buf.toString()); } } }