net.ljcomputing.ecsr.aspect.DeletionAspect.java Source code

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Here is the source code for net.ljcomputing.ecsr.aspect.DeletionAspect.java

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/**
       Copyright 2016, James G. Willmore
    
   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.ljcomputing.ecsr.aspect;

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import net.ljcomputing.ecsr.domain.Domain;

/**
 * Neo4J deletion Aspect. Supports "soft" deletes of entities.
 * 
 * @author James G. Willmore
 *
 */
@Aspect
@Component
public class DeletionAspect {

    /** The Constant LOGGER. */
    private static final Logger LOGGER = LoggerFactory.getLogger(DeletionAspect.class);

    /**
     * Delete method.
     *
     * @param point the point
     * @param entity the entity
     * @throws Throwable the throwable
     */
    @Around("execution(* org.springframework.data.repository.*.delete(Object)) && args(entity)")
    public void deleteMethod(final ProceedingJoinPoint point, final Object entity) throws Throwable {
        if (entity instanceof Domain) {
            final Domain domain = (Domain) entity;
            final String entityClassName = entity.getClass().getName(); //NOPMD

            if (domain.isDeleted()) { //NOPMD
                //REALLY delete the entity
                LOGGER.debug(" ... deleting entity: [{}]{}", entityClassName,
                        ToStringBuilder.reflectionToString(domain, ToStringStyle.JSON_STYLE));
                point.proceed();
            } else {
                //do not delete
                return;
            }
        }
    }
}