SequenceAnnotationGenerator catches exception and displays message

Pamela Russell

• February 01, 2022 23:50

Hi,

I would like a general way to have a `SequenceAnnotationGenerator` catch an exception, display its message to the user in a dialog, then terminate without returning any annotations, returning the user to the sequence viewer to try again.

What is the recommended way to do this?

Thanks,

Pam

0

• Official comment

  

  Tom Edwards

  • February 02, 2022 21:47

  Hi Pam,

  The usual way we would do this is by throwing a DocumentOperationException from within methods. DocumentOperationExceptions are automatically shown as friendly dialog boxes by the GUI. So for example, if you wanted to catch absolutely any exception which your code throws and display it as a friendly dialog you could do something like this:

  try {
      ...
      // Code which may generate errors
      ...
  } catch (Exception e) {
      throw new DocumentOperationException(e.getMessage(), e);
  }

  If you have any further questions, just let us know.

  Cheers,
  Tom
• 

  Pamela Russell

  • February 02, 2022 21:59

  Thanks, this is what I was looking for! Is there a way to disable the button that displays the stack trace?

  0
• 

  Tom Edwards

  • February 03, 2022 03:27

  Unfortunately not.

  You could try using the Dialogs class, something like: 

  Dialogs.showMessageDialog("Hello!");

  But this would mean you need to manually terminate as it's not an exception.

  0

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