/**************************************************************************************
* Copyright (c) Jonas Bon�r, Alexandre Vasseur. All rights reserved. *
* http://aspectwerkz.codehaus.org *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the QPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package examples.xmldef.logging;
import org.codehaus.aspectwerkz.xmldef.advice.AroundAdvice;
import org.codehaus.aspectwerkz.joinpoint.JoinPoint;
import org.codehaus.aspectwerkz.joinpoint.MethodJoinPoint;
/**
* This advice implements a simple logging service.<br/>
*
* It logs the entry A exit of the methods that are picked out
* by the pointcuts mapped to this advice.
*
* @author <a href="mailto:jboner@codehaus.org">Jonas Bon�r</a>
*
* @aspectwerkz.advice-def name=log
* deployment-model=perJVM
* attribute=log
* @aspectwerkz.advice-param advice-ref=log
* name=param
* value=value
*/
public class LoggingAdvice extends AroundAdvice {
private int m_level = 0;
public LoggingAdvice() {
super();
}
public Object execute(final JoinPoint joinPoint) throws Throwable {
// System.out.println("param to advice = " + getParameter("param"));
MethodJoinPoint jp = (MethodJoinPoint)joinPoint;
indent();
System.out.println("--> " + jp.getTargetClass().getName() + "::" + jp.getMethodName());
m_level++;
final Object result = joinPoint.proceed();
m_level--;
indent();
System.out.println("<-- " + jp.getTargetClass().getName() + "::" + jp.getMethodName());
return result;
}
private void indent() {
for (int i = 0; i < m_level; i++) {
System.out.print(" ");
}
}
}