static async Task DetectChangePoint(IAnomalyDetectorClient client, Request request)
{
Console.WriteLine("Detecting the change points in the series.");
var cpdr = new ChangePointDetectRequest(request.Series, request.Granularity);
ChangePointDetectResponse result = await client.ChangePointDetectAsync(cpdr).ConfigureAwait(false);
if (result.IsChangePoint.Contains(true))
{
Console.WriteLine("A change point was detected at index:");
for (int i = 0; i < request.Series.Count; ++i)
{
if (result.IsChangePoint[i])
{
Console.Write(i);
Console.Write(" ");
}
}
Console.WriteLine();
}
else
{
Console.WriteLine("No change point detected in the series.");
}
}
public async Task DetectChangePoint()
{
//read endpoint and apiKey
string endpoint = TestEnvironment.Endpoint;
string apiKey = TestEnvironment.ApiKey;
var endpointUri = new Uri(endpoint);
var credential = new AzureKeyCredential(apiKey);
//create client
AnomalyDetectorClient client = new AnomalyDetectorClient(endpointUri, credential);
#region Snippet:ReadSeriesDataForChangePoint
//read data
string datapath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "samples", "data", "request-data.csv");
List <TimeSeriesPoint> list = File.ReadAllLines(datapath, Encoding.UTF8)
.Where(e => e.Trim().Length != 0)
.Select(e => e.Split(','))
.Where(e => e.Length == 2)
.Select(e => new TimeSeriesPoint(float.Parse(e[1]))
{
Timestamp = DateTime.Parse(e[0])
}).ToList();
//create request
ChangePointDetectRequest request = new ChangePointDetectRequest(list, TimeGranularity.Daily);
#endregion
#region Snippet:DetectChangePoint
//detect
Console.WriteLine("Detecting the change point in the series.");
ChangePointDetectResponse result = await client.DetectChangePointAsync(request).ConfigureAwait(false);
if (result.IsChangePoint.Contains(true))
{
Console.WriteLine("A change point was detected at index:");
for (int i = 0; i < request.Series.Count; ++i)
{
if (result.IsChangePoint[i])
{
Console.Write(i);
Console.Write(" ");
}
}
Console.WriteLine();
}
else
{
Console.WriteLine("No change point detected in the series.");
}
#endregion
}
public virtual Response <ChangePointDetectResponse> DetectChangePoint(ChangePointDetectRequest body, CancellationToken cancellationToken = default)
{
using var scope = _clientDiagnostics.CreateScope("AnomalyDetectorClient.DetectChangePoint");
scope.Start();
try
{
return(RestClient.DetectChangePoint(body, cancellationToken));
}
catch (Exception e)
{
scope.Failed(e);
throw;
}
}
/// <summary>
/// Detect change point for the entire series
/// </summary>
/// <remarks>
/// Evaluate change point score of every series point
/// </remarks>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='body'>
/// Time series points and granularity is needed. Advanced model parameters can
/// also be set in the request if needed.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task <ChangePointDetectResponse> ChangePointDetectAsync(this IAnomalyDetectorClient operations, ChangePointDetectRequest body, CancellationToken cancellationToken = default(CancellationToken))
{
using (var _result = await operations.ChangePointDetectWithHttpMessagesAsync(body, null, cancellationToken).ConfigureAwait(false))
{
return(_result.Body);
}
}
public virtual async Task <Response <ChangePointDetectResponse> > DetectChangePointAsync(ChangePointDetectRequest body, CancellationToken cancellationToken = default)
{
using var scope = _clientDiagnostics.CreateScope("AnomalyDetectorClient.DetectChangePoint");
scope.Start();
try
{
return(await RestClient.DetectChangePointAsync(body, cancellationToken).ConfigureAwait(false));
}
catch (Exception e)
{
scope.Failed(e);
throw;
}
}
/// <summary>
/// Detect change point for the entire series
/// </summary>
/// <remarks>
/// Evaluate change point score of every series point
/// </remarks>
/// <param name='body'>
/// Time series points and granularity is needed. Advanced model parameters can
/// also be set in the request if needed.
/// </param>
/// <param name='customHeaders'>
/// Headers that will be added to request.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
/// <exception cref="APIErrorException">
/// Thrown when the operation returned an invalid status code
/// </exception>
/// <exception cref="SerializationException">
/// Thrown when unable to deserialize the response
/// </exception>
/// <exception cref="ValidationException">
/// Thrown when a required parameter is null
/// </exception>
/// <exception cref="System.ArgumentNullException">
/// Thrown when a required parameter is null
/// </exception>
/// <return>
/// A response object containing the response body and response headers.
/// </return>
public async Task <HttpOperationResponse <ChangePointDetectResponse> > ChangePointDetectWithHttpMessagesAsync(ChangePointDetectRequest body, Dictionary <string, List <string> > customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
{
if (Endpoint == null)
{
throw new ValidationException(ValidationRules.CannotBeNull, "this.Endpoint");
}
if (body == null)
{
throw new ValidationException(ValidationRules.CannotBeNull, "body");
}
if (body != null)
{
body.Validate();
}
// Tracing
bool _shouldTrace = ServiceClientTracing.IsEnabled;
string _invocationId = null;
if (_shouldTrace)
{
_invocationId = ServiceClientTracing.NextInvocationId.ToString();
Dictionary <string, object> tracingParameters = new Dictionary <string, object>();
tracingParameters.Add("body", body);
tracingParameters.Add("cancellationToken", cancellationToken);
ServiceClientTracing.Enter(_invocationId, this, "ChangePointDetect", tracingParameters);
}
// Construct URL
var _baseUrl = BaseUri;
var _url = _baseUrl + (_baseUrl.EndsWith("/") ? "" : "/") + "timeseries/changePoint/detect";
_url = _url.Replace("{Endpoint}", Endpoint);
// Create HTTP transport objects
var _httpRequest = new HttpRequestMessage();
HttpResponseMessage _httpResponse = null;
_httpRequest.Method = new HttpMethod("POST");
_httpRequest.RequestUri = new System.Uri(_url);
// Set Headers
if (customHeaders != null)
{
foreach (var _header in customHeaders)
{
if (_httpRequest.Headers.Contains(_header.Key))
{
_httpRequest.Headers.Remove(_header.Key);
}
_httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
}
}
// Serialize Request
string _requestContent = null;
if (body != null)
{
_requestContent = SafeJsonConvert.SerializeObject(body, SerializationSettings);
_httpRequest.Content = new StringContent(_requestContent, System.Text.Encoding.UTF8);
_httpRequest.Content.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse("application/json; charset=utf-8");
}
// Set Credentials
if (Credentials != null)
{
cancellationToken.ThrowIfCancellationRequested();
await Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
}
// Send Request
if (_shouldTrace)
{
ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
}
cancellationToken.ThrowIfCancellationRequested();
_httpResponse = await HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
if (_shouldTrace)
{
ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
}
HttpStatusCode _statusCode = _httpResponse.StatusCode;
cancellationToken.ThrowIfCancellationRequested();
string _responseContent = null;
if ((int)_statusCode != 200)
{
var ex = new APIErrorException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
try
{
_responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
APIError _errorBody = SafeJsonConvert.DeserializeObject <APIError>(_responseContent, DeserializationSettings);
if (_errorBody != null)
{
ex.Body = _errorBody;
}
}
catch (JsonException)
{
// Ignore the exception
}
ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
if (_shouldTrace)
{
ServiceClientTracing.Error(_invocationId, ex);
}
_httpRequest.Dispose();
if (_httpResponse != null)
{
_httpResponse.Dispose();
}
throw ex;
}
// Create Result
var _result = new HttpOperationResponse <ChangePointDetectResponse>();
_result.Request = _httpRequest;
_result.Response = _httpResponse;
// Deserialize Response
if ((int)_statusCode == 200)
{
_responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
try
{
_result.Body = SafeJsonConvert.DeserializeObject <ChangePointDetectResponse>(_responseContent, DeserializationSettings);
}
catch (JsonException ex)
{
_httpRequest.Dispose();
if (_httpResponse != null)
{
_httpResponse.Dispose();
}
throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
}
}
if (_shouldTrace)
{
ServiceClientTracing.Exit(_invocationId, _result);
}
return(_result);
}
