1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.scxml.env;
18
19 import java.io.Serializable;
20
21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23 import org.apache.commons.scxml.SCXMLListener;
24 import org.apache.commons.scxml.model.Transition;
25 import org.apache.commons.scxml.model.TransitionTarget;
26
27
28 /**
29 * Simple SCXML Listener that logs execution.
30 */
31 public class SimpleSCXMLListener implements SCXMLListener, Serializable {
32
33 /** Serial version UID. */
34 private static final long serialVersionUID = 1L;
35 /** Log. */
36 private Log log = LogFactory.getLog(getClass());
37
38
39 /**
40 * @see SCXMLListener#onEntry(TransitionTarget)
41 */
42 public void onEntry(final TransitionTarget state) {
43 if (log.isInfoEnabled()) {
44 log.info(LogUtils.getTTPath(state));
45 }
46 }
47
48 /**
49 * @see SCXMLListener#onExit(TransitionTarget)
50 */
51 public void onExit(final TransitionTarget state) {
52 if (log.isInfoEnabled()) {
53 log.info(LogUtils.getTTPath(state));
54 }
55 }
56
57 /**
58 * @see SCXMLListener#onTransition(TransitionTarget,TransitionTarget,Transition)
59 */
60 public void onTransition(final TransitionTarget from,
61 final TransitionTarget to, final Transition transition) {
62 if (log.isInfoEnabled()) {
63 log.info(LogUtils.transToString(from, to, transition));
64 }
65 }
66
67 }
68