net.sf.infrared.aspects.aj.JspAjAspect.java Source code

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Here is the source code for net.sf.infrared.aspects.aj.JspAjAspect.java

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/* 
 * Copyright 2005 Tavant Technologies and Contributors
 * 
 * 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.                                                                                               
 * 
 *
 *
 * Original Author:  prashant.nair (Tavant Technologies)
 * Contributor(s):   -;
 *
 */

package net.sf.infrared.aspects.aj;

import net.sf.infrared.agent.MonitorConfig;
import net.sf.infrared.agent.MonitorFacade;
import net.sf.infrared.agent.MonitorFactory;
import net.sf.infrared.aspects.jsp.JspContext;
import net.sf.infrared.base.model.ExecutionTimer;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;

/**
* An aspect to instrument all invocations to JSP pages 
*/
@Aspect
public class JspAjAspect {
    @Pointcut("execution(public void javax.servlet.jsp.HttpJspPage+._jspService(javax.servlet.http.HttpServletRequest,"
            + "   javax.servlet.http.HttpServletResponse))")
    public void condition() {
    }

    @SuppressWarnings("unchecked")
    @Around("condition()")
    public Object around(ProceedingJoinPoint thisJoinPointStaticPart) throws Throwable {
        final Class classObj = thisJoinPointStaticPart.getSignature().getDeclaringType();

        Object returnVal;
        JspContext ctx = new JspContext(classObj);

        MonitorFacade facade = MonitorFactory.getFacade();
        MonitorConfig cfg = facade.getConfiguration();

        if (cfg.isMonitoringEnabled()) {
            ExecutionTimer timer = new ExecutionTimer(ctx);
            MonitorFactory.getFacade().recordExecutionBegin(timer);
            try {
                returnVal = thisJoinPointStaticPart.proceed();
            } finally {
                MonitorFactory.getFacade().recordExecutionEnd(timer);
            }
        } else {
            returnVal = thisJoinPointStaticPart.proceed();
        }

        return returnVal;

    }
}