com.maydesk.base.util.AspectChangedValueHandler.java Source code

Introduction

Here is the source code for com.maydesk.base.util.AspectChangedValueHandler.java

Source

/* This file is part of the MayDesk project.
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.*/

package com.maydesk.base.util;

import nextapp.echo.app.Component;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;

/*
 * Eclipse:
 * -Daj.weaving.verbose=false 
 * -Dorg.aspectj.weaver.showWeaveInfo=false
 * -javaagent:C:\\libs\\aspectjweaver.jar
 */

/**
 * @author chrismay
 */
@Aspect
public class AspectChangedValueHandler {

    @Around(value = "execution(* storeInputProperty(..))")
    public void handleStoreInputProperty(ProceedingJoinPoint point) throws Throwable {
        point.proceed();
        if (point.getArgs()[1] instanceof IChangeSupportable) {
            IChangeSupportable cs = (IChangeSupportable) point.getArgs()[1];
            String propertyName = (String) point.getArgs()[2];
            System.out.println("XXX " + propertyName + " XXXXXXXXXXXXXXXXXXXXXXXXX");
            if (propertyName.equals(cs.getPropertyName())) {
                Object newInput = point.getArgs()[4];
                ((Component) cs).processInput(propertyName, newInput);
                Object newValue = cs.getValue();
                PDBinding changeSupport = cs.getChangeSupport();
                if (changeSupport != null) {
                    changeSupport.doChange(cs, newValue);
                }
            }
        }
    }
}