public DetectFacesResponse Recognise(RecogniseParams recParam)
{
//1. PutObjectIntoS3
if (String.IsNullOrEmpty(recParam.PhotoName))
{
throw new Exception("AmazonRekognition Recognise method: photoName parameter must have value.");
}
var photoName = $"{recParam.PhotoName}_{DateTime.Now}";
var pop = new PutObjectParams()
{
PhotoName = photoName,
PhotoVersion = recParam.PhotoVersion,
BucketName = recParam.BucketName,
RegEndpoint = recParam.RegEndpoint,
InputStrem = recParam.InputStream,
ContentType = recParam.ContentType
};
var resp = PutObjectIntoS3(pop);
if (resp == null)
{
throw new Exception($"PutObjectIntoS3 response is null in Recognise method PhotoName: {photoName}");
}
//2. DetectFaces
var dfp = new DetectFaceParams()
{
PhotoName = photoName,
PhotoVersion = recParam.PhotoVersion,
BucketName = recParam.BucketName,
RegEndpoint = recParam.RegEndpoint
};
var detectFaceResp = DetectFaces(dfp);
if (detectFaceResp == null)
{
throw new Exception($"DetectFaces response is null in Recognise method PhotoName: {photoName}");
}
return(detectFaceResp);
}
public async Task <ObjectID> PutObject(CancellationToken context, PutObjectParams param, CallOptions options = null)
{
var object_client = new ObjectService.ObjectServiceClient(channel);
var obj = param.Object;
var call = object_client.Put(cancellationToken: context);
var opts = DefaultCallOptions.ApplyCustomOptions(options);
var req_stream = call.RequestStream;
var req = new PutRequest();
var body = new PutRequest.Types.Body();
req.Body = body;
var address = new Address
{
ContainerId = obj.Header.ContainerId,
ObjectId = obj.ObjectId,
};
var meta = opts.GetRequestMetaHeader();
AttachObjectSessionToken(opts, meta, address, ObjectSessionContext.Types.Verb.Put);
req.MetaHeader = meta;
var init = new PutRequest.Types.Body.Types.Init
{
ObjectId = obj.ObjectId,
Signature = obj.Signature,
Header = obj.Header,
};
req.Body.Init = init;
req.SignRequest(key);
await req_stream.WriteAsync(req);
int offset = 0;
while (offset < obj.Payload.Length)
{
var end = offset + Object.Object.ChunkSize > obj.Payload.Length ? obj.Payload.Length : offset + Object.Object.ChunkSize;
var chunk = ByteString.CopyFrom(obj.Payload.ToByteArray()[offset..end]);
public PutObjectResponse PutObjectIntoS3(PutObjectParams pop)
{
var config = new AmazonS3Config()
{
RegionEndpoint = pop.RegEndpoint
};
PutObjectResponse resp = null;
try
{
var putReq = new PutObjectRequest
{
BucketName = pop.BucketName,
Key = pop.PhotoName,
InputStream = pop.InputStrem,
//FilePath = filePath,
ContentType = pop.ContentType
};
putReq.Metadata.Add("x-amz-meta-title", "faceRecognitionImages");
using (s3Client = new AmazonS3Client(awsAccessKeyId, awsSecretAccessKey, config))
{
resp = s3Client.PutObject(putReq);
}
if (resp == null)
{
throw new Exception("AmazonS3Client PutObject method call return null.");
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
return(resp);
}
