Source code: org/acegisecurity/event/authentication/LoggerListener.java
1 /* Copyright 2004, 2005 Acegi Technology Pty Limited
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 package org.acegisecurity.event.authentication;
17
18 import org.apache.commons.logging.Log;
19 import org.apache.commons.logging.LogFactory;
20
21 import org.springframework.context.ApplicationEvent;
22 import org.springframework.context.ApplicationListener;
23
24 import org.springframework.util.ClassUtils;
25
26
27 /**
28 * Outputs authentication-related application events to Commons Logging.
29 *
30 * <P>
31 * All authentication events are logged at the warning level.
32 * </p>
33 *
34 * @author Ben Alex
35 * @version $Id: LoggerListener.java,v 1.3 2005/12/02 12:14:38 benalex Exp $
36 */
37 public class LoggerListener implements ApplicationListener {
38 //~ Static fields/initializers =============================================
39
40 private static final Log logger = LogFactory.getLog(LoggerListener.class);
41
42 //~ Methods ================================================================
43
44 public void onApplicationEvent(ApplicationEvent event) {
45 if (event instanceof AbstractAuthenticationEvent) {
46 AbstractAuthenticationEvent authEvent = (AbstractAuthenticationEvent) event;
47
48 if (logger.isWarnEnabled()) {
49 String message = "Authentication event "
50 + ClassUtils.getShortName(authEvent.getClass()) + ": "
51 + authEvent.getAuthentication().getName() + "; details: "
52 + authEvent.getAuthentication().getDetails();
53
54 if (event instanceof AbstractAuthenticationFailureEvent) {
55 message = message + "; exception: "
56 + ((AbstractAuthenticationFailureEvent) event).getException()
57 .getMessage();
58 }
59
60 logger.warn(message);
61 }
62 }
63 }
64 }