/*
* $Id: ParentDefinitionParser.java 19191 2010-08-25 21:05:23Z tcarlson $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.config.spring.parsers.generic;
import org.mule.config.spring.MuleHierarchicalBeanDefinitionParserDelegate;
import org.mule.config.spring.parsers.AbstractHierarchicalDefinitionParser;
import org.mule.config.spring.parsers.assembly.BeanAssembler;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.Assert;
import org.w3c.dom.Element;
/**
* Processes child property elements in Xml but sets the properties on the parent object. This is
* useful when an object has lots of properties and it's more readable to break those properties into
* groups that can be represented as a sub-element in Xml.
*/
public class ParentDefinitionParser extends AbstractHierarchicalDefinitionParser
{
public ParentDefinitionParser()
{
addBeanFlag(MuleHierarchicalBeanDefinitionParserDelegate.MULE_NO_REGISTRATION);
}
protected Class getBeanClass(Element element)
{
try
{
return Class.forName(getParentBeanDefinition(element).getBeanClassName());
}
catch (Exception e)
{
// Should continue to work, but automatic collection detection etc will fail
logger.debug("No class for " + element);
return Object.class;
}
}
protected AbstractBeanDefinition parseInternal(Element element, ParserContext parserContext)
{
preProcess(element);
setParserContext(parserContext);
setRegistry(parserContext.getRegistry());
Class beanClass = getBeanClass(element);
Assert.state(beanClass != null, "Class returned from getBeanClass(Element) must not be null, element is: " + element.getNodeName());
BeanDefinitionBuilder builder = createBeanDefinitionBuilder(element, beanClass);
builder.getRawBeanDefinition().setSource(parserContext.extractSource(element));
if (parserContext.isNested())
{
// Inner bean definition must receive same singleton status as containing bean.
builder.setScope(parserContext.getContainingBeanDefinition().isSingleton()
? BeanDefinition.SCOPE_SINGLETON : BeanDefinition.SCOPE_PROTOTYPE);
}
doParse(element, parserContext, builder);
BeanAssembler beanAssembler = getBeanAssembler(element, builder);
beanAssembler.copyBeanToTarget();
return (AbstractBeanDefinition) beanAssembler.getTarget();
}
protected void postProcess(ParserContext context, BeanAssembler assembler, Element element)
{
// by default the name matches the "real" bean
if (null == element.getAttributeNode(ATTRIBUTE_NAME))
{
element.setAttribute(ATTRIBUTE_NAME, getParentBeanName(element));
}
super.postProcess(context, assembler, element);
}
}