private async Task ApplyCorrection(ApprenticeshipVenueCorrection apprenticeshipVenueCorrection, CancellationToken cancellationToken)
{
if (!_venueCorrector.Apply(apprenticeshipVenueCorrection)) // mutates apprenticeship directly
{
return; // no changes to apply
}
var documentUri = UriFactory.CreateDocumentUri(
_configuration.DatabaseId,
_configuration.ApprenticeshipCollectionName,
apprenticeshipVenueCorrection.Apprenticeship.Id.ToString());
// Dropping to native cosmosdb libraries here rather than cqrs commands because
// this gives us a complete round-trip without either:
// * introducing another read operation which would be significant on 40k records in terms of time and RU limits, or
// * blowing a hole in the command/query api by just exposing ReplaceDocument capability
_logger.LogDebug($"{LogPrefix} Replacing apprenticeship document at uri {documentUri} with corrected copy...");
try
{
var response = await _documentClient.ReplaceDocumentAsync(documentUri, apprenticeshipVenueCorrection.Apprenticeship,
new RequestOptions
{
AccessCondition = new AccessCondition
{
Type = AccessConditionType.IfMatch,
Condition = apprenticeshipVenueCorrection.Apprenticeship.ETag,
}
},
cancellationToken);
if (response.StatusCode != HttpStatusCode.OK)
{
var failure = $"ReplaceDocument failed for {documentUri}, cosmos responded with status code: {response.StatusCode}";
apprenticeshipVenueCorrection.UpdateFailure = failure;
_logger.LogError($"{LogPrefix} {failure}");
}
else
{
apprenticeshipVenueCorrection.UpdatedDate = DateTime.UtcNow;
}
}
catch (Exception exception)
{
var message = $"{LogPrefix} Error replacing apprenticeship at {documentUri}. {exception.Message}";
apprenticeshipVenueCorrection.UpdateFailure = message;
_logger.LogError($"{LogPrefix} {message}", exception);
}
}
/// <summary>
/// Mutates the attached apprenticeship and its locations.
/// </summary>
/// <param name="apprenticeshipVenueCorrection">Changes to make plus apprenticeship to modify</param>
/// <returns>true if any changes made</returns>
public bool Apply(ApprenticeshipVenueCorrection apprenticeshipVenueCorrection)
{
bool dirty = false;
foreach (var locationVenueCorrection in apprenticeshipVenueCorrection.ApprenticeshipLocationVenueCorrections
.Where(c => c.VenueCorrection != null))
{
var locationToUpdate = apprenticeshipVenueCorrection.Apprenticeship.ApprenticeshipLocations
.Single(l => l.Id == locationVenueCorrection.LocationId);
// mutating the in-memory copy of the apprenticeship directly is a bit nasty, but quicker to do for this throwaway code
locationToUpdate.VenueId = locationVenueCorrection.VenueCorrection.Id;
locationToUpdate.UpdatedDate = _clock.UtcNow;
locationToUpdate.UpdatedBy = "VenueCorrector";
apprenticeshipVenueCorrection.Apprenticeship.UpdatedDate = _clock.UtcNow;
apprenticeshipVenueCorrection.Apprenticeship.UpdatedBy = "VenueCorrector";
dirty = true;
}
return(dirty);
}
