/// <summary>
/// Process a local file
/// </summary>
/// <param name="localImagePath">Local file path</param>
/// <returns></returns>
public async Task <FaceServiceResult> ProcessImageAtLocal(string localImagePath)
{
FaceServiceResult result = new FaceServiceResult();
if (string.IsNullOrWhiteSpace(localImagePath) || !File.Exists(localImagePath))
{
return(result);
}
byte[] imageBytes = GetImageAsByteArray(localImagePath);
if (imageBytes == null || imageBytes.Length == 0)
{
return(result);
}
try
{
result = await ProcessImageAsByteArray(imageBytes);
}
catch (Exception ex)
{
// TODO log exception
result.Succeeded = false;
}
return(result);
}
/// <summary>
/// Process a file that's at a public URI
/// </summary>
/// <param name="imageUrl"></param>
/// <returns></returns>
public async Task <FaceServiceResult> ProcessImageAtUrl(string imageUrl)
{
FaceServiceResult result = new FaceServiceResult();
if (string.IsNullOrWhiteSpace(imageUrl))
{
return(result);
}
try
{
HttpContent content = GetImageUriContent(imageUrl);
if (content != null)
{
HttpResponseMessage response = await this.HttpClient.PostAsync(string.Empty, content);
result = await GetFaceResult(response);
}
}
catch (Exception ex)
{
// TODO log exception
result.Succeeded = false;
}
return(result);
}
internal async Task <FaceServiceResult> GetFaceResult(HttpResponseMessage response)
{
FaceServiceResult result = new FaceServiceResult();
if (response == null)
{
return(result);
}
result.Succeeded = response.IsSuccessStatusCode;
result.ServiceMessage = response.ReasonPhrase;
try
{
if (response.IsSuccessStatusCode)
{
string responseContent = await response.Content.ReadAsStringAsync();
result.Faces = JsonConvert.DeserializeObject <List <FaceResult> >(responseContent);
}
}
catch (Exception ex)
{
// TODO log exception
result.Succeeded = false;
}
return(result);
}
/// <summary>
/// Process an image byte array
/// </summary>
/// <param name="imageBytes">Local file path</param>
/// <returns></returns>
internal async Task <FaceServiceResult> ProcessImageAsByteArray(byte[] imageBytes)
{
FaceServiceResult result = new FaceServiceResult();
if (imageBytes == null || imageBytes.Length == 0)
{
return(result);
}
try
{
using (var content = GetImagePayload(imageBytes))
{
HttpResponseMessage response = await this.HttpClient.PostAsync(string.Empty, content);
result = await GetFaceResult(response);
}
}
catch (Exception ex)
{
// TODO log exception
result.Succeeded = false;
}
return(result);
}