001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.scxml.env; 018 019 import java.io.Serializable; 020 021 import org.apache.commons.logging.Log; 022 import org.apache.commons.logging.LogFactory; 023 import org.apache.commons.scxml.SCXMLListener; 024 import org.apache.commons.scxml.model.Transition; 025 import org.apache.commons.scxml.model.TransitionTarget; 026 027 028 /** 029 * Simple SCXML Listener that logs execution. 030 */ 031 public class SimpleSCXMLListener implements SCXMLListener, Serializable { 032 033 /** Serial version UID. */ 034 private static final long serialVersionUID = 1L; 035 /** Log. */ 036 private Log log = LogFactory.getLog(getClass()); 037 038 039 /** 040 * @see SCXMLListener#onEntry(TransitionTarget) 041 */ 042 public void onEntry(final TransitionTarget state) { 043 if (log.isInfoEnabled()) { 044 log.info(LogUtils.getTTPath(state)); 045 } 046 } 047 048 /** 049 * @see SCXMLListener#onExit(TransitionTarget) 050 */ 051 public void onExit(final TransitionTarget state) { 052 if (log.isInfoEnabled()) { 053 log.info(LogUtils.getTTPath(state)); 054 } 055 } 056 057 /** 058 * @see SCXMLListener#onTransition(TransitionTarget,TransitionTarget,Transition) 059 */ 060 public void onTransition(final TransitionTarget from, 061 final TransitionTarget to, final Transition transition) { 062 if (log.isInfoEnabled()) { 063 log.info(LogUtils.transToString(from, to, transition)); 064 } 065 } 066 067 } 068