/*
* 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.runtime.config.spring.parsers;
import org.mule.runtime.config.spring.parsers.assembly.BeanAssembler;
import org.mule.runtime.config.spring.parsers.assembly.configuration.PropertyConfiguration;
import org.mule.runtime.config.spring.parsers.assembly.configuration.ReusablePropertyConfiguration;
import org.mule.runtime.config.spring.parsers.assembly.configuration.TempWrapperPropertyConfiguration;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
/**
* This definition parser introduces the notion of Hierarchical processing to nested XML elements. Definition parsers that extend
* this can refer to parent beans. It does not assume that the parser is restricted to a single property.
* <p>
* Calling classes must set the registry at the start of processing.
*
* @see org.mule.runtime.config.spring.parsers.generic.ChildDefinitionParser
* @see org.mule.runtime.config.spring.parsers.collection.ChildMapEntryDefinitionParser.KeyValuePair
* @see org.mule.runtime.config.spring.parsers.AbstractMuleBeanDefinitionParser
*/
public abstract class AbstractHierarchicalDefinitionParser extends AbstractMuleBeanDefinitionParser {
private ReusablePropertyConfiguration targetPropertyConfiguration =
new ReusablePropertyConfiguration(new TempWrapperPropertyConfiguration(beanPropertyConfiguration, false));
private BeanDefinition forcedParent = null;
public PropertyConfiguration getTargetPropertyConfiguration() {
return targetPropertyConfiguration;
}
protected String getParentBeanName(Element element) {
return ((Element) element.getParentNode()).getAttribute(ATTRIBUTE_NAME);
}
protected Element getParentElement(Element element) {
return ((Element) element.getParentNode());
}
public BeanDefinition getParentBeanDefinition(Element element) {
if (null != forcedParent) {
return forcedParent;
} else {
String parentBean = getParentBeanName(element);
try {
return getRegistry().getBeanDefinition(parentBean);
} catch (NoSuchBeanDefinitionException e) {
// TODO MULE-9638: Do nothing since this is possible due to new parsing model.
return null;
}
}
}
/**
* The bean assembler gives more reliable/automatic processing of collections, maps, etc.
*
* @param element The current element
* @param bean The bean being constructed
* @return An assembler that includes Mule-specific construction logic
*/
protected BeanAssembler getBeanAssembler(Element element, BeanDefinitionBuilder bean) {
BeanDefinition target = getParentBeanDefinition(element);
return getBeanAssemblerFactory().newBeanAssembler(beanPropertyConfiguration, bean, targetPropertyConfiguration, target);
}
/**
* Provide access to bean assembler from non-hierarchical case. Legacy support for "mixed" definition parsers.
*
* @param element
* @param bean
* @deprecated
*/
protected BeanAssembler getOrphanBeanAssembler(Element element, BeanDefinitionBuilder bean) {
return super.getBeanAssembler(element, bean);
}
public void forceParent(BeanDefinition parent) {
forcedParent = parent;
}
protected void preProcess(Element element) {
super.preProcess(element);
targetPropertyConfiguration.reset();
}
// reset the forced parent
protected void postProcess(ParserContext context, BeanAssembler assembler, Element element) {
super.postProcess(context, assembler, element);
forcedParent = null;
}
}