private string GenerateFileName(ExportReportCommand exportCommand)
{
VkGroup vkGroup = this.vkGroupRepository.GetGroupById(exportCommand.VkGroupId);
return(!exportCommand.DateRange.IsSpecified
? string.Format("export_of_{0}.xslx", vkGroup.Name)
: string.Format("export_of_{0}_from_{1}_to_{2}.xlsx", vkGroup.Name, exportCommand.DateRange.From.ToString(CONST_DateTimeFormat), exportCommand.DateRange.To.ToString(CONST_DateTimeFormat)));
}
private string ScheduleExport(VkGroup vkGroup, DateRange dateRange, int initiatorUserId)
{
using (ICommandSender commandSender = Factory.GetInstance <ICommandSender>().Open(CONST_ExportQueueName))
{
string ticketId = Guid.NewGuid().ToString();
ExportReportCommand command = new ExportReportCommand
{
VkGroupId = vkGroup.Id,
DateRange = dateRange,
InitiatorUserId = initiatorUserId,
TicketId = ticketId
};
commandSender.SendCommand(command);
return(ticketId);
}
}
private void SendExportFinished(ExportReportCommand exportCommand, bool isSuccess, string virtualFilePath = "")
{
using (ICommandSender commandSender = Factory.GetInstance <ICommandSender>().Open(CONST_ExportResultQueueName))
{
ExportResultCommand command = new ExportResultCommand
{
VkGroupId = exportCommand.VkGroupId,
DateRange = exportCommand.DateRange,
InitiatorUserId = exportCommand.InitiatorUserId,
TicketId = exportCommand.TicketId,
IsSuccess = isSuccess,
FilePath = virtualFilePath
};
commandSender.SendCommand(command);
}
}
public void ProcessExportQueue()
{
using (ICommandReceiver receiver = Factory.GetInstance <ICommandReceiver>().Open(CONST_ExportQueueName))
{
while (true)
{
ExportReportCommand exportCommand = null;
try
{
exportCommand = receiver.GetCommand <ExportReportCommand>();
if (exportCommand == null)
{
this.log.Debug("No export command found. Processing stopped.");
return;
}
string fileName = this.GenerateFileName(exportCommand);
IFileSystem fileSystem = this.fileSystemFactory.CreateFileSystem(exportCommand.InitiatorUserId);
byte[] exportResult = this.dataProvider.ExportToXlsx(exportCommand.VkGroupId, exportCommand.DateRange);
string virtualFilePath = fileSystem.SaveToFile(fileName, exportResult);
this.SendExportFinished(exportCommand, true, virtualFilePath);
}
catch (Exception exc)
{
this.log.ErrorFormat("Exception is occured while processing a group Id = {0}, for userId = {1}: {2}", exportCommand != null ? exportCommand.VkGroupId : 0, exportCommand != null ? exportCommand.InitiatorUserId : 0, exc.ToString());
if (exportCommand != null)
{
this.SendExportFinished(exportCommand, isSuccess: false);
}
}
finally
{
if (exportCommand != null)
{
exportCommand.MarkAsCompleted();
}
}
}
}
}
