PollingServer functionality is broken

Current Situation

• When YADE configured with PollingServer = true then the polling server starts polling trials endlessly (see PollForever) or until PollingServerDuration is reached. If some files are found inside a polling trial then these files are transferred before the next polling trial is started.
• This functionality is broken:
  • YADE aborts the processing with an SftpATTRS is null exception when the Rename setting is used
  • Configuration item TransferZeroByteFiles - zero bytes handlig:
    • strict - YADE Client execution will be aborted if any zero byte file is found.
  • Configuration item DisableErrorOnNoFilesFounded - this parameter specifies whether an error should be raised if no files can be found for transfer:
    • false - YADE Client execution will be aborted if no files are found .
  • Configuration item PollingServerDuration - this parameter specifies how long the YADE polling server should run:
    • the YADE schema allows only usage of the numerical values. It means, the PollingServerDuration must be defined in seconds when the XML Editor is used.
  • Configuration item WaitForSourceFolder - this parameter determines the behavior of the polling when the source folder doesn't exist:
    • false - no error will be raised when the source directory doesn't exist.
  • Configuration item NotificationTriggers
    • Send a notification (OnSuccess, OnError, OnEmptyFiles) on program end.
    • OnSuccess, OnError, OnEmptyFiles notifications have the same content with the List of files.
      • OnError notification doesn't contain the error.
      • MailOnEmptyFiles notification contains the list of all files.
  • Lost the connection to the source|target during polling.
    • Polling without error detection. No reconnect functionality.
  • Aborting the YADE Client execution.
    • the connection to the source|target will be not closed properly.
    • no summary

Desired Behaviour

• The PollingServer functionallity should work as expected:
  • Configuration item TransferZeroByteFiles - zero bytes handling:
    • strict - if any zero byte file is found - abort the current polling period and continue the YADE Client execution.
  • Configuration item DisableErrorOnNoFilesFounded - this parameter specifies whether an error should be raised if no files can be found for transfer:
    • false - if no files are found - abort the current polling period and continue the YADE Client execution
  • Configuration item PollingServerDuration - this parameter specifies how long the YADE polling server should run:
    • Supported formats:
      • s(n) - seconds, e.g. 30,180...
      • m(n):s(n) - minutes:seconds, e.g. 10:30, 123:456 ...
      • h(n):m(n):s(n) - hours:minutes:seconds, e.g. 12:30:30, 123456:7:8 ...
  • Configuration item WaitForSourceFolder - this parameter determines the behavior of the polling when the source folder doesn't exist:
    • false - abort the YADE Client execution when the source folder doesn't exist.
  • Configuration item NotificationTriggers
    • Send a notification (OnSuccess, OnError, OnEmptyFiles) after each file transfer.
    • All notification types should be contain a possible error message and the List of files with the file transfer status (transferred, transfer_aborted, skipped etc.) and the file size.
      • MailOnEmptyFiles notification should be contain the list of all empty files.
  • Lost the connection to the source|target during polling.
    • Providing reconnection functionality
  • Aborting the YADE Client execution.
    • the connection to the source|target should be closed properly.
    • show summary

 
Applicable YADE Client releases

A patch is available for download with YADE Client releases:

• YADE Client 1.13.0
  • Download the patch patch-20190916-YADE-541.542-1.13.0.zip.
  • Extract the patch-20190916-YADE-541.542-1.13.0.zip to any_ location.
  • Remove patch provided by YADE-541 ({$yade_home}/lib/3rd-party/patch-yade-1.13.0.jar) if exists.
  • Copy patch-20190916-YADE-541.542-1.13.0.jar to the {$yade_home}/lib/3rd-party directory.
  • Use provided YADE_configuration_v1.12.xsd schema file to configure the YADE settings with the XML Editor.