public void Test_TransformationOperations_E2E()
        {
            BasicDelegatingHandler handler = new BasicDelegatingHandler();

            using (var undoContext = UndoContext.Current)
            {
                undoContext.Start();

                string resourceGroupName = TestUtilities.GenerateName("StreamAnalytics");
                string resourceName      = TestUtilities.GenerateName("MyStreamingJobSubmittedBySDK");

                string serviceLocation = TestHelper.GetDefaultLocation();

                var resourceClient = TestHelper.GetResourceClient(handler);
                var client         = TestHelper.GetStreamAnalyticsManagementClient(handler);

                try
                {
                    ResourceGroup resourceGroup = new ResourceGroup()
                    {
                        Location = serviceLocation
                    };
                    resourceClient.ResourceGroups.CreateOrUpdate(resourceGroupName, resourceGroup);

                    Job job = new Job();
                    job.Name     = resourceName;
                    job.Location = serviceLocation;

                    // Construct the general properties for JobProperties
                    JobProperties jobProperties = new JobProperties();
                    jobProperties.Sku = new Sku()
                    {
                        Name = "standard"
                    };
                    jobProperties.EventsOutOfOrderPolicy            = EventsOutOfOrderPolicy.Drop;
                    jobProperties.EventsOutOfOrderMaxDelayInSeconds = 0;

                    job.Properties = jobProperties;

                    // Construct the JobCreateProperties
                    JobCreateOrUpdateParameters jobCreateOrUpdateParameters = new JobCreateOrUpdateParameters();
                    jobCreateOrUpdateParameters.Job = job;

                    // Create a streaming job
                    JobCreateOrUpdateResponse jobCreateOrUpdateResponse = client.StreamingJobs.CreateOrUpdate(resourceGroupName, jobCreateOrUpdateParameters);
                    Assert.Equal(HttpStatusCode.OK, jobCreateOrUpdateResponse.StatusCode);

                    // Get a streaming job to check
                    JobGetParameters jobGetParameters = new JobGetParameters(string.Empty);
                    JobGetResponse   jobGetResponse   = client.StreamingJobs.Get(resourceGroupName, resourceName, jobGetParameters);
                    Assert.Equal(HttpStatusCode.OK, jobGetResponse.StatusCode);
                    Assert.Equal(serviceLocation, jobGetResponse.Job.Location);
                    Assert.Equal(resourceName, jobGetResponse.Job.Name);

                    // Construct the Transformation
                    string         transformationName     = TestUtilities.GenerateName("transformationtest");
                    int            numberOfStreamingUnits = 1;
                    Transformation transformation         = new Transformation()
                    {
                        Name       = transformationName,
                        Properties = new TransformationProperties()
                        {
                            Query          = "Select Id, Name from inputtest",
                            StreamingUnits = numberOfStreamingUnits
                        }
                    };

                    // Add an Transformation
                    TransformationCreateOrUpdateParameters transformationCreateOrUpdateParameters = new TransformationCreateOrUpdateParameters();
                    transformationCreateOrUpdateParameters.Transformation = transformation;
                    TransformationCreateOrUpdateResponse transformationCreateOrUpdateResponse = client.Transformations.CreateOrUpdate(resourceGroupName, resourceName, transformationCreateOrUpdateParameters);
                    Assert.Equal(HttpStatusCode.OK, transformationCreateOrUpdateResponse.StatusCode);
                    Assert.Equal(numberOfStreamingUnits, transformationCreateOrUpdateResponse.Transformation.Properties.StreamingUnits);
                    Assert.NotNull(transformationCreateOrUpdateResponse.Transformation.Properties.Etag);

                    // Update the Transformation
                    transformation.Properties.StreamingUnits = 3;
                    transformation.Properties.Etag           = transformationCreateOrUpdateResponse.Transformation.Properties.Etag;
                    TransformationPatchParameters transformationPatchParameters = new TransformationPatchParameters(transformation.Properties);
                    TransformationPatchResponse   transformationPatchResponse   = client.Transformations.Patch(resourceGroupName, resourceName, transformationName, transformationPatchParameters);
                    Assert.Equal(HttpStatusCode.OK, transformationPatchResponse.StatusCode);
                    Assert.Equal(3, transformationPatchResponse.Properties.StreamingUnits);
                    Assert.NotNull(transformationPatchResponse.Properties.Etag);
                    Assert.NotEqual(transformationCreateOrUpdateResponse.Transformation.Properties.Etag, transformationPatchResponse.Properties.Etag);
                }
                finally
                {
                    client.StreamingJobs.Delete(resourceGroupName, resourceName);
                    resourceClient.ResourceGroups.Delete(resourceGroupName);
                }
            }
        }
        /// <summary>
        /// Update an transformation for a stream analytics job.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// Required. The resource group name of the stream analytics job.
        /// </param>
        /// <param name='jobName'>
        /// Required. The name of the stream analytics job.
        /// </param>
        /// <param name='transformationName'>
        /// Required. The name of the transformation for the stream analytics
        /// job.
        /// </param>
        /// <param name='parameters'>
        /// Required. The parameters required to update an transformation for
        /// the stream analytics job.
        /// </param>
        /// <param name='cancellationToken'>
        /// Cancellation token.
        /// </param>
        /// <returns>
        /// The response of the transformation patch operation.
        /// </returns>
        public async Task <TransformationPatchResponse> PatchAsync(string resourceGroupName, string jobName, string transformationName, TransformationPatchParameters parameters, CancellationToken cancellationToken)
        {
            // Validate
            if (resourceGroupName == null)
            {
                throw new ArgumentNullException("resourceGroupName");
            }
            if (jobName == null)
            {
                throw new ArgumentNullException("jobName");
            }
            if (transformationName == null)
            {
                throw new ArgumentNullException("transformationName");
            }
            if (parameters == null)
            {
                throw new ArgumentNullException("parameters");
            }
            if (parameters.Properties == null)
            {
                throw new ArgumentNullException("parameters.Properties");
            }

            // Tracing
            bool   shouldTrace  = TracingAdapter.IsEnabled;
            string invocationId = null;

            if (shouldTrace)
            {
                invocationId = TracingAdapter.NextInvocationId.ToString();
                Dictionary <string, object> tracingParameters = new Dictionary <string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("jobName", jobName);
                tracingParameters.Add("transformationName", transformationName);
                tracingParameters.Add("parameters", parameters);
                TracingAdapter.Enter(invocationId, this, "PatchAsync", tracingParameters);
            }

            // Construct URL
            string url = "";

            url = url + "/subscriptions/";
            if (this.Client.Credentials.SubscriptionId != null)
            {
                url = url + Uri.EscapeDataString(this.Client.Credentials.SubscriptionId);
            }
            url = url + "/resourcegroups/";
            url = url + Uri.EscapeDataString(resourceGroupName);
            url = url + "/providers/Microsoft.StreamAnalytics/streamingjobs/";
            url = url + Uri.EscapeDataString(jobName);
            url = url + "/transformations/";
            url = url + Uri.EscapeDataString(transformationName);
            List <string> queryParameters = new List <string>();

            queryParameters.Add("api-version=2015-01-01-preview");
            if (queryParameters.Count > 0)
            {
                url = url + "?" + string.Join("&", queryParameters);
            }
            string baseUrl = this.Client.BaseUri.AbsoluteUri;

            // Trim '/' character from the end of baseUrl and beginning of url.
            if (baseUrl[baseUrl.Length - 1] == '/')
            {
                baseUrl = baseUrl.Substring(0, baseUrl.Length - 1);
            }
            if (url[0] == '/')
            {
                url = url.Substring(1);
            }
            url = baseUrl + "/" + url;
            url = url.Replace(" ", "%20");

            // Create HTTP transport objects
            HttpRequestMessage httpRequest = null;

            try
            {
                httpRequest            = new HttpRequestMessage();
                httpRequest.Method     = new HttpMethod("PATCH");
                httpRequest.RequestUri = new Uri(url);

                // Set Headers
                httpRequest.Headers.Add("x-ms-client-request-id", Guid.NewGuid().ToString());

                // Set Credentials
                cancellationToken.ThrowIfCancellationRequested();
                await this.Client.Credentials.ProcessHttpRequestAsync(httpRequest, cancellationToken).ConfigureAwait(false);

                // Serialize Request
                string requestContent = null;
                JToken requestDoc     = null;

                JObject transformationPatchParametersValue = new JObject();
                requestDoc = transformationPatchParametersValue;

                JObject propertiesValue = new JObject();
                transformationPatchParametersValue["properties"] = propertiesValue;

                if (parameters.Properties.Etag != null)
                {
                    propertiesValue["etag"] = parameters.Properties.Etag;
                }

                if (parameters.Properties.StreamingUnits != null)
                {
                    propertiesValue["streamingUnits"] = parameters.Properties.StreamingUnits.Value;
                }

                if (parameters.Properties.Query != null)
                {
                    propertiesValue["query"] = parameters.Properties.Query;
                }

                requestContent      = requestDoc.ToString(Newtonsoft.Json.Formatting.Indented);
                httpRequest.Content = new StringContent(requestContent, Encoding.UTF8);
                httpRequest.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json");

                // Send Request
                HttpResponseMessage httpResponse = null;
                try
                {
                    if (shouldTrace)
                    {
                        TracingAdapter.SendRequest(invocationId, httpRequest);
                    }
                    cancellationToken.ThrowIfCancellationRequested();
                    httpResponse = await this.Client.HttpClient.SendAsync(httpRequest, cancellationToken).ConfigureAwait(false);

                    if (shouldTrace)
                    {
                        TracingAdapter.ReceiveResponse(invocationId, httpResponse);
                    }
                    HttpStatusCode statusCode = httpResponse.StatusCode;
                    if (statusCode != HttpStatusCode.OK)
                    {
                        cancellationToken.ThrowIfCancellationRequested();
                        CloudException ex = CloudException.Create(httpRequest, requestContent, httpResponse, await httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false));
                        if (shouldTrace)
                        {
                            TracingAdapter.Error(invocationId, ex);
                        }
                        throw ex;
                    }

                    // Create Result
                    TransformationPatchResponse result = null;
                    // Deserialize Response
                    if (statusCode == HttpStatusCode.OK)
                    {
                        cancellationToken.ThrowIfCancellationRequested();
                        string responseContent = await httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);

                        result = new TransformationPatchResponse();
                        JToken responseDoc = null;
                        if (string.IsNullOrEmpty(responseContent) == false)
                        {
                            responseDoc = JToken.Parse(responseContent);
                        }

                        if (responseDoc != null && responseDoc.Type != JTokenType.Null)
                        {
                            JToken propertiesValue2 = responseDoc["properties"];
                            if (propertiesValue2 != null && propertiesValue2.Type != JTokenType.Null)
                            {
                                TransformationProperties propertiesInstance = new TransformationProperties();
                                result.Properties = propertiesInstance;

                                JToken etagValue = propertiesValue2["etag"];
                                if (etagValue != null && etagValue.Type != JTokenType.Null)
                                {
                                    string etagInstance = ((string)etagValue);
                                    propertiesInstance.Etag = etagInstance;
                                }

                                JToken streamingUnitsValue = propertiesValue2["streamingUnits"];
                                if (streamingUnitsValue != null && streamingUnitsValue.Type != JTokenType.Null)
                                {
                                    int streamingUnitsInstance = ((int)streamingUnitsValue);
                                    propertiesInstance.StreamingUnits = streamingUnitsInstance;
                                }

                                JToken queryValue = propertiesValue2["query"];
                                if (queryValue != null && queryValue.Type != JTokenType.Null)
                                {
                                    string queryInstance = ((string)queryValue);
                                    propertiesInstance.Query = queryInstance;
                                }
                            }
                        }
                    }
                    result.StatusCode = statusCode;
                    if (httpResponse.Headers.Contains("Date"))
                    {
                        result.Date = DateTime.Parse(httpResponse.Headers.GetValues("Date").FirstOrDefault(), CultureInfo.InvariantCulture);
                    }
                    if (httpResponse.Headers.Contains("ETag"))
                    {
                        result.Properties.Etag = httpResponse.Headers.GetValues("ETag").FirstOrDefault();
                    }
                    if (httpResponse.Headers.Contains("x-ms-request-id"))
                    {
                        result.RequestId = httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
                    }

                    if (shouldTrace)
                    {
                        TracingAdapter.Exit(invocationId, result);
                    }
                    return(result);
                }
                finally
                {
                    if (httpResponse != null)
                    {
                        httpResponse.Dispose();
                    }
                }
            }
            finally
            {
                if (httpRequest != null)
                {
                    httpRequest.Dispose();
                }
            }
        }