org.jdal.aop.DeclareMixinAspectJAdvisorFactory.java Source code

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Here is the source code for org.jdal.aop.DeclareMixinAspectJAdvisorFactory.java

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/*
 * Copyright 2009-2014 Jose Luis Martin.
 *
 * 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 org.jdal.aop;

import java.lang.reflect.Method;

import org.aspectj.lang.annotation.DeclareMixin;
import org.springframework.aop.Advisor;
import org.springframework.aop.aspectj.annotation.MetadataAwareAspectInstanceFactory;
import org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory;
import org.springframework.core.annotation.AnnotationUtils;

/**
 * Add support for AspectJ {@link org.aspectj.lang.annotation.DeclareMixin} annotation.
 *  
 * @author Jose Luis Martin
 * @since 2.0
 */
public class DeclareMixinAspectJAdvisorFactory extends ReflectiveAspectJAdvisorFactory {

    @Override
    public Advisor getAdvisor(Method candidateAdviceMethod, MetadataAwareAspectInstanceFactory aif,
            int declarationOrderInAspect, String aspectName) {

        Advisor advisor = super.getAdvisor(candidateAdviceMethod, aif, declarationOrderInAspect, aspectName);

        // test declare mixin annotation
        if (advisor == null) {

            DeclareMixin declareMixin = AnnotationUtils.findAnnotation(candidateAdviceMethod, DeclareMixin.class);

            if (declareMixin != null) {
                advisor = new DeclareMixinAdvisor(candidateAdviceMethod, aif.getAspectInstance(),
                        declareMixin.value());
            }
        }

        return advisor;
    }

}