public async Task <Result <AnalysisResult> > AnalyzeImageAsync(Image image, string username, string ipAddress, int failureCount)
{
var result = new AnalysisResult(new List <string>(), Constants.NoValueString, Constants.NoValueString);
// Escape condition for recursive call if exception is thrown.
if (failureCount >= Constants.OperationRetry)
{
return(SystemUtilityService.CreateResult(Constants.AnalyzationFailedMessage, result, true));
}
try
{
result = await _googleImageAnalysisService.AnalyzeAsync(image, Constants.ExogredientCategories).ConfigureAwait(false);
}
catch (Exception ex)
{
// Log exception.
await _loggingManager.LogAsync(DateTime.UtcNow.ToString(Constants.LoggingFormatString),
Constants.AnalyzeImageOperation, username, ipAddress, ex.ToString()).ConfigureAwait(false);
// Recursively retry the operation until the maximum amount of retries is reached.
await AnalyzeImageAsync(image, username, ipAddress, ++failureCount).ConfigureAwait(false);
}
// Log the fact that the operation was successful.
await _loggingManager.LogAsync(DateTime.UtcNow.ToString(Constants.LoggingFormatString),
Constants.AnalyzeImageOperation, username, ipAddress).ConfigureAwait(false);
return(SystemUtilityService.CreateResult(Constants.AnalyzationSuccessMessage, result, false));
}
public async Task <IActionResult> AnalyzeImageAsync(IFormCollection data, IFormFile formFile)
{
try
{
formFile.OpenReadStream();
using var memoryStream = new MemoryStream();
await formFile.CopyToAsync(memoryStream);
var image = new Bitmap(memoryStream);
Byte[] bytes;
using (var ms = new MemoryStream())
{
image.Save(ms, ImageFormat.Jpeg);
bytes = memoryStream.ToArray();
}
var img = Image.FromBytes(bytes);
var result = await _uploadManager.AnalyzeImageAsync(img, data[Constants.UsernameKey], data[Constants.IPAddressKey], Constants.NoValueInt).ConfigureAwait(false);
var suggestionsArray = result.Data.Suggestions.ToArray();
return(Ok(new AnalyzeResponse()
{
Message = result.Message,
ExceptionOccurred = result.ExceptionOccurred,
Suggestions = suggestionsArray,
Category = result.Data.Category,
Name = result.Data.Name
}));
}
catch
{
// Return generic server error.
return(StatusCode(StatusCodes.Status500InternalServerError));
}
}
