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
18 package org.apache.commons.proxy.interceptor.logging;
19
20 import java.lang.reflect.Method;
21 import java.util.logging.Level;
22 import java.util.logging.Logger;
23
24 /**
25 * An interceptor which logs method invocations using a {@link Logger JDK logger} using the "finer" logging level.
26 *
27 * @auothor James Carman
28 * @since 1.1
29 */
30 public class JdkLoggingInterceptor extends AbstractLoggingInterceptor
31 {
32 //**********************************************************************************************************************
33 // Fields
34 //**********************************************************************************************************************
35
36 private final String loggerName;
37
38 //**********************************************************************************************************************
39 // Constructors
40 //**********************************************************************************************************************
41
42 public JdkLoggingInterceptor( Class clazz )
43 {
44 this(clazz.getName());
45 }
46
47 public JdkLoggingInterceptor( String loggerName )
48 {
49 this.loggerName = loggerName;
50 }
51
52 //**********************************************************************************************************************
53 // Other Methods
54 //**********************************************************************************************************************
55
56 private Logger getLogger()
57 {
58 return Logger.getLogger(loggerName);
59 }
60
61 protected void entering( Method method, Object[] args )
62 {
63 getLogger().entering(method.getDeclaringClass().getName(), method.getName(), args);
64 }
65
66 protected void exiting( Method method, Object result )
67 {
68 getLogger().exiting(method.getDeclaringClass().getName(), method.getName(), result);
69 }
70
71 protected boolean isLoggingEnabled()
72 {
73 return getLogger().isLoggable(Level.FINER);
74 }
75
76 protected void logMessage( String message )
77 {
78 // Do nothing!
79 }
80
81 protected void logMessage( String message, Throwable t )
82 {
83 // Do nothing!
84 }
85
86 protected void throwing( Method method, Throwable t )
87 {
88 getLogger().throwing(method.getDeclaringClass().getName(), method.getName(), t);
89 }
90 }