private void EnqueueDocuments(string warehouseID)
        {
            Tracing.TraceEvent(TraceEventType.Verbose, 0, "Creating print job in print queue...");
            if (_receivedDocuments.Count > 0)
            {
                _printQueue.Createprintjob(warehouseID, null);
            }

            Tracing.TraceEvent(TraceEventType.Verbose, 0, "Adding documents to print queue...");

            try
            {
                foreach (GenericReport d in _receivedDocuments)
                {
                    if (string.IsNullOrEmpty(d.Data))
                    {
                        Tracing.TraceEvent(TraceEventType.Verbose, 0, string.Format("Empty document data - document type: {0} Nothing to add.", d.MetaData.documentType));
                    }
                    else
                    {
                        Tracing.TraceEvent(TraceEventType.Verbose, 0, string.Format("Document type = {0}.", d.MetaData.documentType));

                        UTF8Encoding             utf8 = new UTF8Encoding();
                        StringWriterWithEncoding sw   = new StringWriterWithEncoding(utf8);

                        _genericReportSerializer.Serialize(sw, d);

                        string almid = "";

                        try
                        {
                            _printQueue.Enqueuedocument(sw.ToString(), ref almid, d.MetaData.documentType, d.MetaData.documentSubType, d.MetaData.terminalIdentity, d.MetaData.printerIdentity, d.MetaData.userIdentity, d.MetaData.numberOfCopies);
                        }
                        catch (Exception ex)
                        {
                            Tracing.TraceData(TraceEventType.Error, 0, ex);
                            throw;
                        }
                    }
                }

                Tracing.TraceEvent(TraceEventType.Verbose, 0, "Done adding documents.");

                Tracing.TraceEvent(TraceEventType.Verbose, 0, "Compleating print job in print queue...");

                _printQueue.Completeprintjob();
            }
            finally
            {
                _receivedDocuments.Clear();
            }
        }