org.sventon.advice.StopWatchAroundAdvice.java Source code

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Here is the source code for org.sventon.advice.StopWatchAroundAdvice.java

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/*
 * ====================================================================
 * Copyright (c) 2005-2012 sventon project. All rights reserved.
 *
 * This software is licensed as described in the file LICENSE, which
 * you should have received as part of this distribution. The terms
 * are also available at http://www.sventon.org.
 * If newer versions of this license are posted there, you may use a
 * newer version instead, at your option.
 * ====================================================================
 */
package org.sventon.advice;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.util.StopWatch;

/**
 * Around advice that logs the method execution time.
 *
 * @author jesper@sventon.org
 */
public final class StopWatchAroundAdvice implements MethodInterceptor {

    /**
     * The logging instance.
     */
    private final Log logger = LogFactory.getLog(getClass());

    @Override
    public Object invoke(final MethodInvocation method) throws Throwable {
        final StopWatch stopWatch = new StopWatch();
        stopWatch.start();
        final Object val = method.proceed();
        stopWatch.stop();
        logger.debug(createMessage(method.getMethod().getName(), stopWatch.getTotalTimeMillis()));
        return val;
    }

    protected String createMessage(final String methodName, long milliseconds) {
        return "Method [" + methodName + "] took [" + milliseconds + "] ms";
    }
}