com.netsteadfast.greenstep.service.aspect.ServiceScriptExpressionProcessAspect.java Source code

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Here is the source code for com.netsteadfast.greenstep.service.aspect.ServiceScriptExpressionProcessAspect.java

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/* 
 * Copyright 2012-2016 bambooCORE, greenstep of copyright Chen Xin Nien
 * 
 * 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.
 * 
 * -----------------------------------------------------------------------
 * 
 * author:    Chen Xin Nien
 * contact: chen.xin.nien@gmail.com
 * 
 */
package com.netsteadfast.greenstep.service.aspect;

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import com.netsteadfast.greenstep.base.Constants;
import com.netsteadfast.greenstep.base.exception.AuthorityException;
import com.netsteadfast.greenstep.base.exception.ServiceException;
import com.netsteadfast.greenstep.util.ServiceScriptExpressionUtils;

@Order(10)
@Aspect
@Component
public class ServiceScriptExpressionProcessAspect {
    protected Logger logger = Logger.getLogger(ServiceScriptExpressionProcessAspect.class);

    @Around(ServiceAspectConstants.AROUND_VALUE)
    public Object aroundMethod(ProceedingJoinPoint pjp) throws AuthorityException, ServiceException, Throwable {
        Annotation[] annotations = pjp.getTarget().getClass().getAnnotations();
        MethodSignature signature = (MethodSignature) pjp.getSignature();
        if (annotations == null || annotations.length < 1) {
            return pjp.proceed();
        }
        String beanId = "";
        for (int i = 0; i < annotations.length; i++) {
            if (annotations[i] instanceof Service) {
                beanId = ((Service) annotations[i]).value();
            }
        }
        if (StringUtils.isBlank(beanId)) {
            return pjp.proceed();
        }
        if (!ServiceScriptExpressionUtils.needProcess(beanId, signature.getMethod().getName(),
                Constants.getSystem())) {
            return pjp.proceed();
        }
        Method method = signature.getMethod();
        ServiceScriptExpressionUtils.processBefore(beanId, signature.getMethod(), Constants.getSystem(), pjp);
        Object obj = pjp.proceed();
        ServiceScriptExpressionUtils.processAfter(beanId, method, Constants.getSystem(), obj, pjp);
        return obj;
    }

}