/*

  * Copyright 2007-2010 The Kuali Foundation

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.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.core.config.spring;

 import org.kuali.rice.core.config.spring.RiceConfigPropertyPlaceholderConfigurer.PlaceholderResolvingStringValueResolver;

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

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

 import org.springframework.util.StringValueResolver;

 /**

  * This BeanDefinitionVisitor that will allow for injection of Properties objects created

  * from properties of a like prefix identified by a value of $[my.prefix].

  * 

  * example:

  * foo.prop1=bar

  * foo.prop2=foo

  * fooPropertyObject=$[foo.]

  * 

  * results in

  * fooPropertyObject={prop1=bar; prop2=foo} 

  * 

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

  *

  */

 public class RiceConfigBeanDefinitionVisitor extends BeanDefinitionVisitor {

     PlaceholderResolvingStringValueResolver valueResolver;

     public RiceConfigBeanDefinitionVisitor(StringValueResolver valueResolver) {

         super(valueResolver);

         this.valueResolver=(PlaceholderResolvingStringValueResolver) valueResolver;

     }

     @Override

     protected Object resolveValue(Object value) {

         value = super.resolveValue(value);

         String strValue = null;

         if(value instanceof String){

             strValue=(String)value;

         }else if(value instanceof TypedStringValue){

             strValue=((TypedStringValue)value).getValue();

         }

         if(strValue!=null&&strValue.startsWith("$[") && strValue.endsWith("]")){

             value = valueResolver.resolvePropertiesValue(strValue.substring(2, strValue.length()-1));

         }

         return value;

     }

 }