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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