private void parseMongoDBStore(
      XMLExtendedStreamReader reader,
      LoadersConfigurationBuilder loadersBuilder,
      ClassLoader classLoader)
      throws XMLStreamException {
    MongoDBCacheStoreConfigurationBuilder builder =
        new MongoDBCacheStoreConfigurationBuilder(loadersBuilder);

    while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
      Element element = Element.forName(reader.getLocalName());
      switch (element) {
        case CONNECTION:
          {
            this.parseConnection(reader, builder);
            break;
          }
        case AUTHENTICATION:
          {
            this.parseAuthentication(reader, builder);
            break;
          }
        case STORAGE:
          {
            this.parseStorage(reader, builder);
            break;
          }
        default:
          {
            throw ParseUtils.unexpectedElement(reader);
          }
      }
    }
    loadersBuilder.addStore(builder);
  }
 @Override
 public void readElement(XMLExtendedStreamReader reader, ConfigurationBuilderHolder holder)
     throws XMLStreamException {
   ConfigurationBuilder builder = holder.getCurrentConfigurationBuilder();
   Element element = Element.forName(reader.getLocalName());
   switch (element) {
     case LEVELDB_STORE:
       {
         parseLevelDBCacheStore(
             reader, builder.persistence().addStore(LevelDBStoreConfigurationBuilder.class));
         break;
       }
     default:
       {
         throw ParseUtils.unexpectedElement(reader);
       }
   }
 }
  @Override
  public void readElement(
      XMLExtendedStreamReader xmlExtendedStreamReader,
      ConfigurationBuilderHolder configurationBuilderHolder)
      throws XMLStreamException {
    ConfigurationBuilder builder = configurationBuilderHolder.getCurrentConfigurationBuilder();

    Element element = Element.forName(xmlExtendedStreamReader.getLocalName());
    switch (element) {
      case MONGODB_STORE:
        {
          parseMongoDBStore(
              xmlExtendedStreamReader,
              builder.loaders(),
              configurationBuilderHolder.getClassLoader());
          break;
        }
      default:
        {
          throw ParseUtils.unexpectedElement(xmlExtendedStreamReader);
        }
    }
  }