public static MessageDeserializer getDeserializer(String format,
                            String version) {
    return getInstance(hiveConf.get(CONF_LABEL_HCAT_MESSAGE_FACTORY_IMPL_PREFIX + format,
                    DEFAULT_MESSAGE_FACTORY_IMPL)).getDeserializer();
  }
Getter for MessageDeserializer, corresponding to the specified format and version.
@param format Serialization format for notifications.
@param version Version of serialization format (currently ignored.)
@return MessageDeserializer.
hcatalog/server-extensions/src/main/java/org/apache/hive/hcatalog/messaging/MessageFactory.java