code: static String parseRoleIdentifier(final String trackingId)
  	{
  		if (StringUtil.isNullOrWhiteSpace(trackingId) || !trackingId.contains(TRACKING_ID_TOKEN_SEPARATOR))
  		{
  			return null;
  		}
  
  		return trackingId.substring(trackingId.indexOf(TRACKING_ID_TOKEN_SEPARATOR));
  	}
docs: parses ServiceBus role identifiers from trackingId
  @return null if no roleIdentifier found