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Java > Open Source Codes > org > springframework > aop > interceptor > ClassLoaderAnalyzerInterceptor


1 /*
2  * Copyright 2002-2005 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.springframework.aop.interceptor;
18
19 import java.io.Serializable JavaDoc;
20
21 import org.aopalliance.intercept.MethodInterceptor;
22 import org.aopalliance.intercept.MethodInvocation;
23 import org.apache.commons.logging.Log;
24 import org.apache.commons.logging.LogFactory;
25
26 import org.springframework.util.ClassLoaderUtils;
27
28 /**
29  * Trivial classloader analyzer interceptor.
30  *
31  * @author Rod Johnson
32  * @author Dmitriy Kopylenko
33  * @see org.springframework.util.ClassLoaderUtils
34  */
35 public class ClassLoaderAnalyzerInterceptor implements MethodInterceptor, Serializable JavaDoc {
36
37     /** Static to avoid serializing the logger */
38     protected static final Log logger = LogFactory.getLog(ClassLoaderAnalyzerInterceptor.class);
39
40     public Object JavaDoc invoke(MethodInvocation invocation) throws Throwable JavaDoc {
41         if (logger.isInfoEnabled()) {
42             logger.info(
43                 ClassLoaderUtils.showClassLoaderHierarchy(
44                     invocation.getThis(),
45                     invocation.getThis().getClass().getName(),
46                     "\n",
47                     "-"));
48         }
49         return invocation.proceed();
50     }
51
52 }
53
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