private VisionOcrModel GetVisionOcrModel(VisionOcrAttribute attribute)
{
if (attribute.ImageSource == Bindings.ImageSource.Client)
{
throw new ArgumentException($"ImageSource of Client does not support binding to vision models. Use Url or BlobStorage instead. ");
}
attribute.Validate();
var client = new VisionOcrClient(this, attribute, _loggerFactory);
VisionOcrRequest request = new VisionOcrRequest();
if (attribute.ImageSource == ImageSource.BlobStorage)
{
var fileTask = StorageServices.GetFileBytes(attribute.BlobStoragePath, attribute.BlobStorageAccount);
fileTask.Wait();
request.ImageBytes = fileTask.Result;
}
else
{
request.ImageUrl = attribute.ImageUrl;
}
var result = client.OCRAsync(request);
result.Wait();
return(result.Result);
}
private async Task <VisionOcrRequest> MergeProperties(VisionOcrRequest operation, IVisionBinding config, VisionOcrAttribute attr)
{
var visionOperation = new VisionOcrRequest
{
Url = attr.VisionUrl ?? operation.Url,
Key = attr.VisionKey ?? operation.Key,
AutoResize = attr.AutoResize,
ImageUrl = string.IsNullOrEmpty(operation.ImageUrl) ? attr.ImageUrl : operation.ImageUrl,
ImageBytes = operation.ImageBytes,
DetectOrientation = attr.DetectOrientation.HasValue ? attr.DetectOrientation.Value : operation.DetectOrientation
};
if (string.IsNullOrEmpty(visionOperation.Key))
{
_log.LogWarning(VisionExceptionMessages.KeyMissing);
throw new ArgumentException(VisionExceptionMessages.KeyMissing);
}
return(visionOperation);
}
public VisionOcrClient(IVisionBinding config, VisionOcrAttribute attr, ILoggerFactory loggerFactory)
{
this._config = config;
this._attr = attr;
this._log = loggerFactory?.CreateLogger("Host.Bindings.VisionOcr");
}
private async Task <VisionOcrRequest> MergeProperties(VisionOcrRequest operation, IVisionBinding config, VisionOcrAttribute attr)
{
var visionOperation = new VisionOcrRequest
{
Url = attr.VisionUrl ?? operation.Url,
Key = attr.VisionKey ?? operation.Key,
SecureKey = attr.SecureKey ?? attr.SecureKey,
AutoResize = attr.AutoResize,
ImageUrl = string.IsNullOrEmpty(operation.ImageUrl) ? attr.ImageUrl : operation.ImageUrl,
ImageBytes = operation.ImageBytes,
DetectOrientation = attr.DetectOrientation.HasValue ? attr.DetectOrientation.Value : operation.DetectOrientation
};
if (string.IsNullOrEmpty(visionOperation.Key) && string.IsNullOrEmpty(visionOperation.SecureKey))
{
_log.LogWarning(VisionExceptionMessages.KeyMissing);
throw new ArgumentException(VisionExceptionMessages.KeyMissing);
}
if (!string.IsNullOrEmpty(visionOperation.SecureKey))
{
HttpClient httpClient = this._config.Client.GetHttpClientInstance();
visionOperation.Key = await KeyVaultServices.GetValue(visionOperation.SecureKey, httpClient);
}
return(visionOperation);
}
