/*
 * 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.util;

import org.mule.runtime.config.spring.parsers.AbstractMuleBeanDefinitionParser;
import org.mule.runtime.core.util.StringUtils;
import org.mule.runtime.core.util.XMLUtils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.xml.BeanDefinitionParserDelegate;
import org.w3c.dom.Element;

/**
 * These only depend on standard (JSE) XML classes and are used by Spring config code. For a more extensive (sub-)class, see the
 * XMLUtils class in the XML module.
 */
public class SpringXMLUtils extends XMLUtils {

  private static final Logger logger = LoggerFactory.getLogger(SpringXMLUtils.class);

  public static final String MULE_DEFAULT_NAMESPACE = "http://www.mulesoft.org/schema/mule/core";
  public static final String MULE_NAMESPACE_PREFIX = "http://www.mulesoft.org/schema/mule/";

  public static boolean isMuleNamespace(Element element) {
    String ns = element.getNamespaceURI();
    return ns != null && ns.startsWith(MULE_NAMESPACE_PREFIX);
  }

  public static boolean isBeansNamespace(Element element) {
    String ns = element.getNamespaceURI();
    return ns != null && ns.equals(BeanDefinitionParserDelegate.BEANS_NAMESPACE_URI);
  }

  public static String getNameOrId(Element element) {
    String id = element.getAttribute(AbstractMuleBeanDefinitionParser.ATTRIBUTE_ID);
    String name = element.getAttribute(AbstractMuleBeanDefinitionParser.ATTRIBUTE_NAME);
    if (StringUtils.isBlank(id)) {
      if (StringUtils.isBlank(name)) {
        return "";
      } else {
        return name;
      }
    } else {
      if (!StringUtils.isBlank(name) && !name.equals(id)) {
        logger.warn("Id (" + id + ") and name (" + name + ") differ for " + elementToString(element));
      }
      return id;
    }
  }

}