BroadcastOperationThreading operationThreading = BroadcastOperationThreading.fromString(request.param("operation_threading"), BroadcastOperationThreading.SINGLE_THREAD);
if (operationThreading == BroadcastOperationThreading.NO_THREADS) {
// since we don't spawn, don't allow no_threads, but change it to a single thread
operationThreading = BroadcastOperationThreading.SINGLE_THREAD;
}
exportRequest.operationThreading(operationThreading);
if (request.hasContent()) {
exportRequest.source(request.content(), request.contentUnsafe());
} else {
String source = request.param("source");
if (source != null) {