/*

  * Copyright 2007 The Kuali Foundation

  * 

  * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php

  * 

  * 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.kuali.rice.kns.uif.util;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.kns.uif.core.Component;

 import org.springframework.beans.BeansException;

 import org.springframework.beans.factory.config.BeanPostProcessor;

 /**

  * Sets the unique Id for a <code>Component</code> if not set

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ComponentIdBeanPostProcessor implements BeanPostProcessor {

     public ComponentIdBeanPostProcessor() {}

     /**

      * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object,

      *      java.lang.String)

      */

     @Override

     public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {

         return bean;

     }

     /**

      * Sets the unique Id for a <code>Component</code> if not set

      * 

      * <p>

      * Will use the bean name (if not the spring generated) or generate a

      * numeric identifier

      * </p>

      * 

      * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessAfterInitialization(java.lang.Object,

      *      java.lang.String)

      * @see org.kuali.rice.kns.uif.core.Component#getDecorators

      */

     @Override

     public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {

         if (bean instanceof Component) {

             Component component = (Component) bean;

             if (StringUtils.isBlank(component.getId())) {

                 if (!StringUtils.contains(beanName, "$")) {

                     component.setId(beanName);

                 }

                 else {

                     component.setId(ComponentFactory.getNextId());

                 }

             }

         }

         return bean;

     }

 }