@Override public ListFlowFileStatus deleteFlowFileListingRequest(String connectionId, String listingRequestId) { final Connection connection = locateConnection(connectionId); final FlowFileQueue queue = connection.getFlowFileQueue(); final ListFlowFileStatus listFlowFileStatus = queue.cancelListFlowFileRequest(listingRequestId); if (listFlowFileStatus == null) { throw new ResourceNotFoundException(String.format("Unable to find listing request with id '%s'.", listingRequestId)); } return listFlowFileStatus; }