/*
* static void SaveBlobToFile(AzureBlobDataReference blobLocation, string resultsLabel, TraceWriter log)
* {
* const string OutputFileLocation = @"C:Temp\myresultsfile.ilearner"; // Replace this with the location you would like to use for your output file, and valid file extension (usually .csv for scoring results, or .ilearner for trained models)
*
* var credentials = new StorageCredentials(blobLocation.SasBlobToken);
* var blobUrl = new Uri(new Uri(blobLocation.BaseLocation), blobLocation.RelativeLocation);
* var cloudBlob = new CloudBlockBlob(blobUrl, credentials);
*
* log.Info(string.Format("Reading the result from {0}", blobUrl.ToString()));
* cloudBlob.DownloadToFile(OutputFileLocation, FileMode.Create);
*
* log.Info(string.Format("{0} have been written to the file {1}", resultsLabel, OutputFileLocation));
* }*/
static void ProcessResults(BatchScoreStatus status, TraceWriter log)
{
;
foreach (var output in status.Results)
{
var blobLocation = output.Value;
log.Info(string.Format("The result '{0}' is available at the following Azure Storage location:", output.Key));
log.Info(string.Format("BaseLocation: {0}", blobLocation.BaseLocation));
log.Info(string.Format("RelativeLocation: {0}", blobLocation.RelativeLocation));
log.Info(string.Format("SasBlobToken: {0}", blobLocation.SasBlobToken));
log.Info("");
}
}
static async Task InvokeBatchExecutionService(string name, Stream blob, TraceWriter log)
{
// Web Service Info
string BaseUrl = ConfigurationManager.AppSettings.Get("SUPPLY_DEMAND_PREDICT_BATCH_LEARNING_API_URL");
string apiKey = ConfigurationManager.AppSettings.Get("SUPPLY_DEMAND_PREDICT_BATCH_LEARNING_API_KEY");
// Storage Account Info
string StorageAccountName = ConfigurationManager.AppSettings.Get("STORAGE_ACCOUNT_NAME_4_BATCH_LEARNING");
string StorageAccountKey = ConfigurationManager.AppSettings.Get("STORAGE_ACCOUNT_KEY_4_BATCH_LEARNING");
string StorageContainerName4Input = ConfigurationManager.AppSettings.Get("STORAGE_CONTAINER_NAME_4_BATCH_LEARNING_INPUT");
string StorageContainerName4Output = ConfigurationManager.AppSettings.Get("STORAGE_CONTAINER_NAME_4_BATCH_LEARNING_OUTPUT");
string storageConnectionString = string.Format("DefaultEndpointsProtocol=https;AccountName={0};AccountKey={1}", StorageAccountName, StorageAccountKey);
// set a time out for polling status
const int TimeOutInMilliseconds = 120 * 1000; // Set a timeout of 2 minutes
using (HttpClient client = new HttpClient())
{
var request = new BatchExecutionRequest()
{
Inputs = new Dictionary <string, AzureBlobDataReference>()
{
{
"input1",
new AzureBlobDataReference()
{
ConnectionString = storageConnectionString,
RelativeLocation = string.Format("{0}/dataset_buy_azureml.csv", StorageContainerName4Input)
}
},
},
Outputs = new Dictionary <string, AzureBlobDataReference>()
{
{
"output2",
new AzureBlobDataReference()
{
ConnectionString = storageConnectionString,
RelativeLocation = string.Format("{0}/output2results.ilearner", StorageContainerName4Output) /* output file (.csv for scoring results, or .ilearner for trained models) */
}
},
{
"output1",
new AzureBlobDataReference()
{
ConnectionString = storageConnectionString,
RelativeLocation = string.Format("{0}/output1results.csv", StorageContainerName4Output) /*output file (.csv for scoring results, or .ilearner for trained models) */
}
},
},
GlobalParameters = new Dictionary <string, string>()
{
}
};
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", apiKey);
// WARNING: The 'await' statement below can result in a deadlock
// if you are calling this code from the UI thread of an ASP.Net application.
// One way to address this would be to call ConfigureAwait(false)
// so that the execution does not attempt to resume on the original context.
// For instance, replace code such as:
// result = await DoSomeTask()
// with the following:
// result = await DoSomeTask().ConfigureAwait(false)
log.Info("Submitting the job...");
// submit the job
var response = await client.PostAsJsonAsync(BaseUrl + "?api-version=2.0", request);
if (!response.IsSuccessStatusCode)
{
await WriteFailedResponse(response, log);
return;
}
string jobId = await response.Content.ReadAsAsync <string>();
log.Info(string.Format("Job ID: {0}", jobId));
// start the job
log.Info("Starting the job...");
response = await client.PostAsync(BaseUrl + "/" + jobId + "/start?api-version=2.0", null);
if (!response.IsSuccessStatusCode)
{
await WriteFailedResponse(response, log);
return;
}
string jobLocation = BaseUrl + "/" + jobId + "?api-version=2.0";
Stopwatch watch = Stopwatch.StartNew();
bool done = false;
while (!done)
{
log.Info("Checking the job status...");
response = await client.GetAsync(jobLocation);
if (!response.IsSuccessStatusCode)
{
await WriteFailedResponse(response, log);
return;
}
BatchScoreStatus status = await response.Content.ReadAsAsync <BatchScoreStatus>();
if (watch.ElapsedMilliseconds > TimeOutInMilliseconds)
{
done = true;
log.Info(string.Format("Timed out. Deleting job {0} ...", jobId));
await client.DeleteAsync(jobLocation);
}
switch (status.StatusCode)
{
case BatchScoreStatusCode.NotStarted:
log.Info(string.Format("Job {0} not yet started...", jobId));
break;
case BatchScoreStatusCode.Running:
log.Info(string.Format("Job {0} running...", jobId));
break;
case BatchScoreStatusCode.Failed:
log.Info(string.Format("Job {0} failed!", jobId));
log.Info(string.Format("Error details: {0}", status.Details));
done = true;
break;
case BatchScoreStatusCode.Cancelled:
log.Info(string.Format("Job {0} cancelled!", jobId));
done = true;
break;
case BatchScoreStatusCode.Finished:
done = true;
log.Info(string.Format("Job {0} finished!", jobId));
ProcessResults(status, log);
break;
}
if (!done)
{
Thread.Sleep(1000); // Wait one second
}
}
}
}