DescendentDefinitionParser.java

/*
 * 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.generic;

import org.mule.runtime.core.util.StringUtils;

import org.w3c.dom.Element;
import org.w3c.dom.Node;

/**
 * An extension to {@link ChildDefinitionParser} which recurses up the DOM tree until it finds a named parent.
 */
public class DescendentDefinitionParser extends ChildDefinitionParser {

  public DescendentDefinitionParser(String setterMethod, Class clazz) {
    super(setterMethod, clazz);
  }

  protected String getParentBeanName(Element element) {
    Node node = element;
    while (null != node && node instanceof Element) {
      String name = super.getParentBeanName((Element) node);
      if (!StringUtils.isBlank(name)) {
        return name;
      }
      node = element.getParentNode();
    }
    throw new IllegalStateException("Bean: " + element.getNodeName() + " has no grandparent");
  }
}