private PredictionEngine <ModelInput, ModelOutput> GetPredictionEngine()
{
var modelPath = MLConfiguration.GetModelPath();
var mlContext = new MLContext();
var model = mlContext.Model.Load(modelPath, out var schema);
return(mlContext.Model.CreatePredictionEngine <ModelInput, ModelOutput>(model, schema));
}
static void Main(string[] args)
{
Console.WriteLine("ML node started");
var configuration = new MLConfiguration();
var service = new EventsService(
new Recognizer(),
new Storage(configuration.StoragePath));
var mqFactory = new ConnectionFactory
{
HostName = configuration.MqHostname,
UserName = configuration.MqUserName,
Password = configuration.MqPassword,
};
using var connection = mqFactory.PatientlyCreateConnection();
using var channel = connection.CreateModel();
var consumer = new EventingBasicConsumer(channel);
consumer.Received += (sender, e) =>
{
try
{
var strMessage = Encoding.UTF8.GetString(e.Body.ToArray());
Console.WriteLine("Message received: " + strMessage);
var request = JsonConvert.DeserializeObject <ImageUploadedMessage>(strMessage);
var response = service.OnImageUploaded(request);
if (response == null)
{
return;
}
var responseStr = JsonConvert.SerializeObject(response);
Console.WriteLine("Sending message: " + responseStr);
channel.BasicAck(e.DeliveryTag, multiple: false);
channel.QueueDeclare(configuration.QueueToPublish,
durable: true,
exclusive: false,
autoDelete: false);
channel.BasicPublish(
exchange: string.Empty, // direct exchange
routingKey: configuration.QueueToPublish,
body: Encoding.UTF8.GetBytes(responseStr)
);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
};
// setup equal pressure to each node
channel.BasicQos(prefetchSize: 0, prefetchCount: 1, global: false);
channel.QueueDeclare(configuration.QueueToConsume,
durable: true,
exclusive: false,
autoDelete: false);
channel.BasicConsume(configuration.QueueToConsume, autoAck: false, consumer);
Thread.Sleep(Timeout.Infinite);
}