#206 IsADirectoryError fix

[musale]

Loading http://localhost:8080/ throws an IsADirectoryError: [Errno 21] Is a directory: '/'

Description

The endpoint is called every time the front end loads. Since the dicom.readfile() method is an IO op, I do a try/except to catch the IOError 21. As it is, this error is only anticipated on page load because there's no default path to a dicom file. I return an 'empty' response back so that the error is handled on the server-side and presents the client side an opportunity to handle it too.

To handle the empty response from the server.

Cornerstone throws errors if handed empty fields on the front end. Since the functions trigger calls to the server endpoint on load (I am assuming this is because of the async/await computed functions -- please correct my reasoning here if I'm wrong) and has nothing to display, catering for instances of empty values mitigates these unnecessary errors. Check the changes in OpenDICOM.vue file.

Reference to official issue

Fixes issue #206

Motivation and Context

This change removes the error logs for IsADirectoryError and also handles instances where a dicom file is not found.

How Has This Been Tested?

• Load http://localhost:8080/
• There should be no error traceback

CLA

• I have signed the CLA; if other committers are in the commit history, they have signed the CLA as well

[lamby]

Hi @musale! Did you mean to squash these into one commit? If you still have the separate changes on your local branch it would be great if you could push them instead; I'm seeing a bunch of whitespace changes that is making the rest hard to review in terms of what it fixes! No worries if not, but I thought I would just ping first instead of picking it apart manually :)

[musale]

hi @lamby yes. I meant to squash it into one commit.

[musale]

@lamby I think the update should be clearer on the changed files now 😄

[lamby]

Hm, we shouldn't be printing during a view method, no? :)