public void Can_Be_Constructed()
{
//Arrange
//Act
var connection = new BlobConnection(Mock.Of <IStorageConnectionManager <CloudBlobClient> >());
//Assert
Assert.That(connection, Is.Not.Null);
}
public void Transaction_Id_Cannot_Be_Empty()
{
//Arrange
var connection = new BlobConnection(Mock.Of <IStorageConnectionManager <CloudBlobClient> >());
//Act
async Task <CloudBlobContainer> TestDelegate() => await connection.GetObjectAsync(Guid.Empty);
//Assert
Assert.That(TestDelegate,
Throws.ArgumentException.With.Message.EqualTo("Id cannot be Empty"));
}
public async Task Can_Get_Container()
{
//Arrange
_mockManager.Setup(x => x.GetStorageClient()).Returns(Task.FromResult(_mockClient.Object));
_mockClient.Setup(x => x.GetContainerReference(It.IsAny <string>())).Returns(_mockContainer.Object);
_mockContainer.Setup(x => x.CreateIfNotExistsAsync()).Returns(Task.FromResult(true));
var connection = new BlobConnection(_mockManager.Object);
//Act
var result = await connection.GetObjectAsync(Guid.NewGuid());
//Assert
Assert.That(result, Is.EqualTo(_mockContainer.Object));
}
public void Can_Remove_Container()
{
//Arrange
_mockManager.Setup(x => x.GetStorageClient()).Returns(Task.FromResult(_mockClient.Object));
_mockClient.Setup(x => x.GetContainerReference(It.IsAny <string>())).Returns(_mockContainer.Object);
_mockContainer.Setup(x => x.DeleteIfExistsAsync()).Returns(Task.FromResult(true));
var connection = new BlobConnection(_mockManager.Object);
//Act
async Task TestDelegate() => await connection.RemoveObjectAsync(Guid.NewGuid());
//Assert
Assert.That(TestDelegate, Throws.Nothing);
}
public void Exception_Thrown_In_Connection_Manager_Will_Bubble_Up()
{
//Arrange
const string exceptionMessage = "Test Exception";
_mockManager.Setup(x => x.GetStorageClient())
.Throws(new Exception(exceptionMessage));
var connection = new BlobConnection(_mockManager.Object);
//Act
async Task <CloudBlobContainer> TestDelegate() => await connection.GetObjectAsync(Guid.NewGuid());
//Assert
Assert.That(TestDelegate, Throws.Exception.With.Message.EqualTo(exceptionMessage));
}
public void Exception_Thrown_In_Cloud_Blob_Container_Will_Bubble_Up()
{
//Arrange
const string exceptionMessage = "Test Exception";
_mockManager.Setup(x => x.GetStorageClient()).Returns(Task.FromResult(_mockClient.Object));
_mockClient.Setup(x => x.GetContainerReference(It.IsAny <string>())).Returns(_mockContainer.Object);
_mockContainer.Setup(x => x.DeleteIfExistsAsync()).Throws(new Exception(exceptionMessage));
var connection = new BlobConnection(_mockManager.Object);
//Act
async Task TestDelegate() => await connection.RemoveObjectAsync(Guid.NewGuid());
//Assert
Assert.That(TestDelegate, Throws.Exception.With.Message.EqualTo(exceptionMessage));
}
public ModelController(IConfiguration configuration)
{
_configuration = configuration;
_context = new MLContext();
var modelPath = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "wine.zip");
if (!System.IO.File.Exists(modelPath))
{
var blob = BlobConnection.GetBlobReference(_configuration["blobConnectionString"], "models", "wine.zip");
blob.DownloadToFileAsync(modelPath, System.IO.FileMode.CreateNew).RunSynchronously();
}
using (var stream = System.IO.File.OpenRead(modelPath))
{
_model = _context.Model.Load(stream);
}
}
static async Task Main(string[] args)
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("config.json");
var configuration = builder.Build();
_sqlConnectionString = configuration["connectionString"];
var fileData = ReadFromFile("./winequality.csv");
AddDataToDatabase(fileData);
var dbData = ReadFromDatabase();
var context = new MLContext();
var mlData = context.Data.LoadFromEnumerable(dbData);
var trainTestData = context.Regression.TrainTestSplit(mlData, testFraction: 0.2);
var dataPreview = trainTestData.TrainSet.Preview();
var pipeline = context.Transforms.Categorical.OneHotEncoding("TypeOneHot", "Type")
.Append(context.Transforms.Concatenate("Features", "FixedAcidity", "VolatileAcidity", "CitricAcid",
"ResidualSugar", "Chlorides", "FreeSulfurDioxide", "TotalSulfurDioxide", "Density", "Ph", "Sulphates",
"Alcohol"))
.Append(context.Transforms.CopyColumns(("Label", "Quality")))
.Append(context.Regression.Trainers.FastTree());
var model = pipeline.Fit(trainTestData.TrainSet);
var blob = BlobConnection.GetBlobReference(configuration["blobConnectionString"], "models", fileName);
using (var stream = File.Create(fileName))
{
context.Model.Save(model, stream);
}
await blob.UploadFromFileAsync(fileName);
}
