net.kamhon.ieagle.aop.DwrDelegateAdvice.java Source code

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Here is the source code for net.kamhon.ieagle.aop.DwrDelegateAdvice.java

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/*
 * Copyright 2012 Eng Kam Hon (kamhon@gmail.com)
 * 
 * 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 net.kamhon.ieagle.aop;

import java.lang.reflect.Method;

import net.kamhon.ieagle.exception.ValidatorException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.ProceedingJoinPoint;
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.ThrowsAdvice;

/**
 * <p>
 * This clase used for following purpose :
 * </p>
 * 
 * <ol>
 * <li>log Unexpected Exception when calling DWR request</li>
 * <li>log DWR request</li>
 * </ol>
 * 
 * @author kamhon
 * 
 */
public class DwrDelegateAdvice implements ThrowsAdvice, MethodBeforeAdvice {
    private static final Log log = LogFactory.getLog(DwrDelegateAdvice.class);

    public DwrDelegateAdvice() {
        log.debug("Creating...DwrDelegateAdvice()");
    }

    public void before(Method method, Object[] args, Object target) throws Throwable {
        log.debug("method = " + method + " ,target = " + target);
    }

    public void afterThrowing(Throwable throwable) {
        if (!(throwable instanceof ValidatorException)) {
            log.error(throwable, throwable.fillInStackTrace());
        }
    }

    public Object invoke(ProceedingJoinPoint pjp) throws Throwable {
        log.debug(pjp.toLongString());

        Object retVal = null;
        try {
            retVal = pjp.proceed();
        } catch (Exception ex) {
            if (!(ex instanceof ValidatorException)) {
                log.error(ex, ex.fillInStackTrace());
            }
            throw ex;
        }
        return retVal;
    }
}