protected override async Task ExecuteAsync(WorkerRequest request, ProcessRekognitionResult requestInput)
{
var workerJobHelper =
new WorkerJobHelper <AIJob>(
DbTableProvider.Table(request.TableName()),
ResourceManagerProvider.GetResourceManager(request),
request,
requestInput.JobAssignmentId);
try
{
await workerJobHelper.InitializeAsync();
var jobInput = workerJobHelper.JobInput;
S3Locator outputLocation;
if (!jobInput.TryGet <S3Locator>(nameof(outputLocation), out outputLocation))
{
throw new Exception("Invalid or missing output location.");
}
var s3Bucket = outputLocation.AwsS3Bucket;
var rekoJobId = requestInput.JobInfo.RekoJobId;
var rekoJobType = requestInput.JobInfo.RekoJobType;
var status = requestInput.JobInfo.Status;
if (status != "SUCCEEDED")
{
throw new Exception($"AI Rekognition failed job info: rekognition status:" + status);
}
object data = null;
switch (rekoJobType)
{
case "StartCelebrityRecognition":
using (var rekognitionClient = new AmazonRekognitionClient())
data = await rekognitionClient.GetCelebrityRecognitionAsync(new GetCelebrityRecognitionRequest
{
JobId = rekoJobId, /* required */
MaxResults = 1000000,
SortBy = "TIMESTAMP"
});
break;
case "StartLabelDetection":
throw new NotImplementedException("StartLabelDetection has not yet been implemented");
case "StartContentModeration":
throw new NotImplementedException("StartContentModeration has not yet been implemented");
case "StartPersonTracking":
throw new NotImplementedException("StartPersonTracking has not yet been implemented");
case "StartFaceDetection":
throw new NotImplementedException("StartLabelDetection has not yet been implemented");
case "StartFaceSearch":
throw new NotImplementedException("StartLabelDetection has not yet been implemented");
default:
throw new Exception($"Unknown job type '{rekoJobType}'");
}
if (data == null)
{
throw new Exception($"No data was returned by AWS Rekognition");
}
var newS3Key = $"reko_{Guid.NewGuid()}.json";
var s3Params = new PutObjectRequest
{
BucketName = outputLocation.AwsS3Bucket,
Key = newS3Key,
ContentBody = data.ToMcmaJson().ToString(),
ContentType = "application/json"
};
try
{
var destS3 = await outputLocation.GetClientAsync();
await destS3.PutObjectAsync(s3Params);
}
catch (Exception error)
{
Logger.Error("Unable to write output file to bucket '" + s3Bucket + "' with key '" + newS3Key + "'");
Logger.Exception(error);
}
workerJobHelper.JobOutput["outputFile"] = new S3Locator
{
AwsS3Bucket = s3Bucket,
AwsS3Key = newS3Key
};
await workerJobHelper.CompleteAsync();
}
catch (Exception ex)
{
Logger.Exception(ex);
try
{
await workerJobHelper.FailAsync(ex.ToString());
}
catch (Exception innerEx)
{
Logger.Exception(innerEx);
}
}
}
public static async Task ProcessRekognitionResultAsync(AwsAiServiceWorkerRequest @event)
{
var resourceManager = @event.GetAwsV4ResourceManager();
var table = new DynamoDbTable(@event.StageVariables["TableName"]);
var jobAssignmentId = @event.JobAssignmentId;
var job = await RetrieveJobAsync(resourceManager, table, jobAssignmentId);
try
{
var jobInput = job.JobInput;
S3Locator outputLocation;
if (!jobInput.TryGet <S3Locator>(nameof(outputLocation), out outputLocation))
{
throw new Exception("Invalid or missing output location.");
}
var s3Bucket = outputLocation.AwsS3Bucket;
var rekoJobId = @event.JobExternalInfo.RekoJobId;
var rekoJobType = @event.JobExternalInfo.RekoJobType;
var status = @event.JobExternalInfo.Status;
if (status != "SUCCEEDED")
{
throw new Exception($"AI Rekognition failed job info: rekognition status:" + status);
}
object data = null;
switch (rekoJobType)
{
case "StartCelebrityRecognition":
var getCelebRecognitionParams = new GetCelebrityRecognitionRequest
{
JobId = rekoJobId, /* required */
MaxResults = 1000000,
SortBy = "TIMESTAMP"
};
var rekognitionClient = new AmazonRekognitionClient();
data = await rekognitionClient.GetCelebrityRecognitionAsync(getCelebRecognitionParams);
break;
case "StartLabelDetection":
throw new NotImplementedException("StartLabelDetection has not yet been implemented");
case "StartContentModeration":
throw new NotImplementedException("StartContentModeration has not yet been implemented");
case "StartPersonTracking":
throw new NotImplementedException("StartPersonTracking has not yet been implemented");
case "StartFaceDetection":
throw new NotImplementedException("StartLabelDetection has not yet been implemented");
case "StartFaceSearch":
throw new NotImplementedException("StartLabelDetection has not yet been implemented");
default:
throw new Exception($"Unknown job type '{rekoJobType}'");
}
if (data == null)
{
throw new Exception($"No data was returned by AWS Rekognition");
}
var newS3Key = $"reko_{Guid.NewGuid()}.json";
var s3Params = new PutObjectRequest
{
BucketName = outputLocation.AwsS3Bucket,
Key = newS3Key,
ContentBody = data.ToMcmaJson().ToString(),
ContentType = "application/json"
};
try
{
var destS3 = await outputLocation.GetClientAsync();
await destS3.PutObjectAsync(s3Params);
}
catch (Exception error)
{
Logger.Error("Unable to write output file to bucket '" + s3Bucket + "' with key '" + newS3Key + "'");
Logger.Exception(error);
}
var jobOutput = new JobParameterBag();
jobOutput["outputFile"] = new S3Locator
{
AwsS3Bucket = s3Bucket,
AwsS3Key = newS3Key
};
await UpdateJobAssignmentWithOutputAsync(table, jobAssignmentId, jobOutput);
await UpdateJobAssignmentStatusAsync(resourceManager, table, jobAssignmentId, "COMPLETED");
}
catch (Exception error)
{
Logger.Exception(error);
try
{
await UpdateJobAssignmentStatusAsync(resourceManager, table, jobAssignmentId, "FAILED", error.ToString());
}
catch (Exception innerError)
{
Logger.Exception(innerError);
}
}
}