private async Task ProcessSubmissionFromXQueue(Database.Models.XQueueWatcher watcher, XQueueSubmission submission)
{
var xQueueRepo = GetNewXQueueRepo();
GraderPayload graderPayload;
try
{
graderPayload = submission.Body.GraderPayload.DeserializeJson <GraderPayload>();
}
catch (Exception e)
{
log.Error($"Can't parse grader payload: {e.Message}");
log.Info($"Payload is: {submission.Body.GraderPayload}");
return;
}
log.Info($"Add new xqueue submission for course {graderPayload.CourseId}, slide {graderPayload.SlideId}");
await xQueueRepo.AddXQueueSubmission(
watcher,
submission.Header.JsonSerialize(),
graderPayload.CourseId,
graderPayload.SlideId,
submission.Body.StudentResponse
);
}
private async Task SafeGetAndProcessSubmissionFromXQueue(Database.Models.XQueueWatcher watcher)
{
try
{
await GetAndProcessSubmissionFromXQueue(watcher);
}
catch (Exception e)
{
log.Error(e);
}
}
private async Task GetAndProcessSubmissionFromXQueue(Database.Models.XQueueWatcher watcher)
{
if (!clientsCache.TryGetValue(watcher.Id, out var client))
{
client = new XQueueClient(watcher.BaseUrl, watcher.UserName, watcher.Password);
if (!await client.Login())
{
log.Error($"Can\'t login to xqueue {watcher.QueueName} ({watcher.BaseUrl}, user {watcher.UserName})");
return;
}
clientsCache[watcher.Id] = client;
}
var submission = await client.GetSubmission(watcher.QueueName);
if (submission == null)
{
return;
}
log.Info($"Got new submission in xqueue {watcher.QueueName}: {submission.JsonSerialize()}");
try
{
await ProcessSubmissionFromXQueue(watcher, submission);
}
catch (Exception e)
{
log.Error($"Error occurred while processing submission from xqueue: {e.Message}", e);
await client.PutResult(new XQueueResult
{
header = submission.header,
Body = new XQueueResultBody
{
Score = 0,
IsCorrect = false,
Message = "Sorry, we can't check your code now. Please retry or contact us at [email protected]",
}
});
}
}
