public async Task Run([TimerTrigger("0 */5 * * * *")] TimerInfo myTimer)
{
try
{
CloudBlobClient cloudBlobClient = AzureStorageHelpers.ConnectToBlobClient(_config[Settings.STORAGE_ACCOUNT_NAME], _config[Settings.STORAGE_ACCOUNT_KEY]);
CloudBlobContainer cloudBlobContainer = AzureStorageHelpers.GetBlobContainer(cloudBlobClient, _config[Settings.MODEL_CONTAINER_NAME]);
// TODO: Can we download these from Blob Storage instead?
string testDataPath = Path.Combine(Environment.CurrentDirectory, "Data", "taxi-fare-test.csv");
string trainDataPath = Path.Combine(Environment.CurrentDirectory, "Data", "taxi-fare-train.csv");
string modelPath = _config[Settings.MODEL_PATH];
await ModelTrainerHelpers.TrainAndSaveModel(
_mlContext,
trainDataPath,
testDataPath,
modelPath,
cloudBlobContainer);
}
catch (Exception ex)
{
_logger.LogError($"Something went wrong. Exception thrown: {ex.Message}");
throw;
}
}
void IIngestedRepos.SaveTestData(InProcessFeedMsg msg)
{
TestDataEntity msgEntity = null;
string moreExInfo = string.Empty;
try
{
msgEntity = MakeTestDataEntity(msg);
// TODO 5-23-15 Failsafe requires using Transient Fault application block and
// maybe circuit breaker pattern on all requests for cloud services. Wrap below
// code in that stuff as an example.
AzureStorageHelpers.AzTableStorageInsert(ConstantsNEnums.TestMessageTableName, msgEntity);
}
catch (StorageException ex)
{
if (ex.Message.Contains("409"))
{
moreExInfo = "\n HTTP 409 error code: RowKey already exists in table on insert.";
}
string displayMsg = string.Format("\n{0}.SaveTestData():", m_ThisName);
ConsoleNTraceHelpers.DisplayExToConsoleNTrace(displayMsg, ex);
ConsoleNTraceHelpers.DisplayInfoToConsoleNTrace(moreExInfo);
throw;
}
catch (Exception ex)
{
string displayMsg = string.Format("\n{0}.SaveTestData():", m_ThisName);
ConsoleNTraceHelpers.DisplayExToConsoleNTrace(displayMsg, ex);
throw;
}
}
public async Task WhenNewRequestFindsUpdatedBlob_ThenRequestReturnsFalse()
{
var payloadStringA = new string('a', 50);
var payloadStringB = new string('b', 50);
var payloadStringC = new string('c', 50);
var payloadStringD = new string('d', 50);
Assert.True(
await _sut.WriteAsync(
new[]
{
TestUtilities.CreateBlockData(payloadStringA, BlockSize),
TestUtilities.CreateBlockData(payloadStringB, BlockSize)
},
CancellationToken.None));
await AzureStorageHelpers.TouchBlobAsync(GetContainer().GetBlockBlobReference(Prefix + "0"));
Assert.False(
await _sut.WriteAsync(
new[]
{
TestUtilities.CreateBlockData(payloadStringC, BlockSize),
TestUtilities.CreateBlockData(payloadStringD, BlockSize)
},
CancellationToken.None));
Assert.Equal(
payloadStringA + payloadStringB,
await GetContainer()
.GetBlockBlobReference(Prefix + "0")
.DownloadTextAsync(Encoding.UTF8, AccessCondition.GenerateEmptyCondition(), null, null));
}