/*
 * 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.specific;

import org.mule.runtime.config.spring.ElementValidator;
import org.mule.runtime.config.spring.parsers.PreProcessor;

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

/**
 * A {@link PreProcessor} that validates that no mule element is used inside a <spring:beans> element.
 *
 * This is for security and consistency reasons. A way of enforcing that XSD is not cheated
 *
 * @since 3.6.0
 */
public class DomainElementsValidator implements ElementValidator {

  @Override
  public void validate(Element element) {
    Node node = element.getParentNode();

    while (node != null) {
      Node parent = node.getParentNode();
      if (parent == null) {
        return;
      }

      if (node.getNamespaceURI().contains("mule") && "beans".equals(parent.getLocalName())
          && parent.getNamespaceURI().contains("spring")) {
        throw new IllegalStateException("Mule elements are not allowed inside Spring elements when used in a domain");
      }

      node = parent;
    }
  }

}