01: /*
02: * Copyright 2002-2005 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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;
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
36: MethodInterceptor, Serializable {
37:
38: /** Static to avoid serializing the logger */
39: protected static final Log logger = LogFactory
40: .getLog(ClassLoaderAnalyzerInterceptor.class);
41:
42: public Object invoke(MethodInvocation invocation) throws Throwable {
43: if (logger.isInfoEnabled()) {
44: logger.info(ClassLoaderUtils.showClassLoaderHierarchy(
45: invocation.getThis(), invocation.getThis()
46: .getClass().getName(), "\n", "-"));
47: }
48: return invocation.proceed();
49: }
50:
51: }
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