/*
* Copyright 2008-2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jdal.log;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.ProceedingJoinPoint;
/**
* A Log method tracer to use as around advice to avoid "in code" debug
* Enter/Exit method traces.
*
* Example:
* <aop:config>
* <aop:aspect id="methodTracerAspect" ref="methodTracer">
* <aop:pointcut id="anyMethod" expression="execution(* a.b.c.*(..))"/>
* <aop:around pointcut-ref="anyMethod" method="traceMethod"/>
* </aop:aspect>
* </aop:config>
*
* <bean id="methodTracer" class="info.joseluismartin.log.MethodTracer"/>
*
* @author Jose Luis Martin - (jlm@joseluismartin.info)
*/
public class MethodTracer {
/** log */
private static Log log = LogFactory.getLog(MethodTracer.class);
/**
* Simple Around Advice for trace in/out method execution
*
* @param pjp the joint point
* @return returned object.
* @throws Throwable for the method
*/
public Object traceMethod(ProceedingJoinPoint pjp) throws Throwable {
log.debug("Enter method: " + pjp.getSignature().toLongString());
Object result = pjp.proceed();
log.debug("Exit method: " + pjp.toShortString());
return result;
}
}