.Net SDK for PostgreSQL. (#4175)

* .Net SDK for PostgreSQL..

* Update test recordings.

* Resolve PR comments.

* Update props file and add metadata

src/SDKs/PostgreSQL/AzSdk.RP.props

@@ -0,0 +1,7 @@
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <!--This file and it's contents are updated at build time moving or editing might result in build failure. Take due deligence while editing this file-->
+  <PropertyGroup>
+    <AzureApiTag>DBforPostgreSQL_2017-12-01;</AzureApiTag>
+    <PackageTags>$(PackageTags);$(CommonTags);$(AzureApiTag);</PackageTags>
+  </PropertyGroup>
+</Project>

src/SDKs/PostgreSQL/Management.PostgreSQL/Generated/CheckNameAvailabilityOperations.cs

@@ -0,0 +1,250 @@
+// <auto-generated>
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for
+// license information.
+//
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is
+// regenerated.
+// </auto-generated>
+
+namespace Microsoft.Azure.Management.PostgreSQL
+{
+    using Microsoft.Rest;
+    using Microsoft.Rest.Azure;
+    using Models;
+    using Newtonsoft.Json;
+    using System.Collections;
+    using System.Collections.Generic;
+    using System.Linq;
+    using System.Net;
+    using System.Net.Http;
+    using System.Threading;
+    using System.Threading.Tasks;
+
+    /// <summary>
+    /// CheckNameAvailabilityOperations operations.
+    /// </summary>
+    internal partial class CheckNameAvailabilityOperations : IServiceOperations<PostgreSQLManagementClient>, ICheckNameAvailabilityOperations
+    {
+        /// <summary>
+        /// Initializes a new instance of the CheckNameAvailabilityOperations class.
+        /// </summary>
+        /// <param name='client'>
+        /// Reference to the service client.
+        /// </param>
+        /// <exception cref="System.ArgumentNullException">
+        /// Thrown when a required parameter is null
+        /// </exception>
+        internal CheckNameAvailabilityOperations(PostgreSQLManagementClient client)
+        {
+            if (client == null)
+            {
+                throw new System.ArgumentNullException("client");
+            }
+            Client = client;
+        }
+
+        /// <summary>
+        /// Gets a reference to the PostgreSQLManagementClient
+        /// </summary>
+        public PostgreSQLManagementClient Client { get; private set; }
+
+        /// <summary>
+        /// Check the availability of name for resource
+        /// </summary>
+        /// <param name='nameAvailabilityRequest'>
+        /// The required parameters for checking if resource name is available.
+        /// </param>
+        /// <param name='customHeaders'>
+        /// Headers that will be added to request.
+        /// </param>
+        /// <param name='cancellationToken'>
+        /// The cancellation token.
+        /// </param>
+        /// <exception cref="CloudException">
+        /// 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<AzureOperationResponse<NameAvailability>> ExecuteWithHttpMessagesAsync(NameAvailabilityRequest nameAvailabilityRequest, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            if (Client.ApiVersion == null)
+            {
+                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
+            }
+            if (Client.SubscriptionId == null)
+            {
+                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
+            }
+            if (nameAvailabilityRequest == null)
+            {
+                throw new ValidationException(ValidationRules.CannotBeNull, "nameAvailabilityRequest");
+            }
+            if (nameAvailabilityRequest != null)
+            {
+                nameAvailabilityRequest.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("nameAvailabilityRequest", nameAvailabilityRequest);
+                tracingParameters.Add("cancellationToken", cancellationToken);
+                ServiceClientTracing.Enter(_invocationId, this, "Execute", tracingParameters);
+            }
+            // Construct URL
+            var _baseUrl = Client.BaseUri.AbsoluteUri;
+            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/providers/Microsoft.DBforPostgreSQL/checkNameAvailability").ToString();
+            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
+            List<string> _queryParameters = new List<string>();
+            if (Client.ApiVersion != null)
+            {
+                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
+            }
+            if (_queryParameters.Count > 0)
+            {
+                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
+            }
+            // 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 (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
+            {
+                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
+            }
+            if (Client.AcceptLanguage != null)
+            {
+                if (_httpRequest.Headers.Contains("accept-language"))
+                {
+                    _httpRequest.Headers.Remove("accept-language");
+                }
+                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
+            }
+
+
+            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(nameAvailabilityRequest != null)
+            {
+                _requestContent = Rest.Serialization.SafeJsonConvert.SerializeObject(nameAvailabilityRequest, Client.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 (Client.Credentials != null)
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
+            }
+            // Send Request
+            if (_shouldTrace)
+            {
+                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
+            }
+            cancellationToken.ThrowIfCancellationRequested();
+            _httpResponse = await Client.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 CloudException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
+                try
+                {
+                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
+                    CloudError _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<CloudError>(_responseContent, Client.DeserializationSettings);
+                    if (_errorBody != null)
+                    {
+                        ex = new CloudException(_errorBody.Message);
+                        ex.Body = _errorBody;
+                    }
+                }
+                catch (JsonException)
+                {
+                    // Ignore the exception
+                }
+                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
+                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
+                if (_httpResponse.Headers.Contains("x-ms-request-id"))
+                {
+                    ex.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
+                }
+                if (_shouldTrace)
+                {
+                    ServiceClientTracing.Error(_invocationId, ex);
+                }
+                _httpRequest.Dispose();
+                if (_httpResponse != null)
+                {
+                    _httpResponse.Dispose();
+                }
+                throw ex;
+            }
+            // Create Result
+            var _result = new AzureOperationResponse<NameAvailability>();
+            _result.Request = _httpRequest;
+            _result.Response = _httpResponse;
+            if (_httpResponse.Headers.Contains("x-ms-request-id"))
+            {
+                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
+            }
+            // Deserialize Response
+            if ((int)_statusCode == 200)
+            {
+                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
+                try
+                {
+                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<NameAvailability>(_responseContent, Client.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;
+        }
+
+    }
+}

src/SDKs/PostgreSQL/Management.PostgreSQL/Generated/CheckNameAvailabilityOperationsExtensions.cs

@@ -0,0 +1,59 @@
+// <auto-generated>
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for
+// license information.
+//
+// Code generated by Microsoft (R) AutoRest Code Generator.
+// Changes may cause incorrect behavior and will be lost if the code is
+// regenerated.
+// </auto-generated>
+
+namespace Microsoft.Azure.Management.PostgreSQL
+{
+    using Microsoft.Rest;
+    using Microsoft.Rest.Azure;
+    using Models;
+    using System.Threading;
+    using System.Threading.Tasks;
+
+    /// <summary>
+    /// Extension methods for CheckNameAvailabilityOperations.
+    /// </summary>
+    public static partial class CheckNameAvailabilityOperationsExtensions
+    {
+            /// <summary>
+            /// Check the availability of name for resource
+            /// </summary>
+            /// <param name='operations'>
+            /// The operations group for this extension method.
+            /// </param>
+            /// <param name='nameAvailabilityRequest'>
+            /// The required parameters for checking if resource name is available.
+            /// </param>
+            public static NameAvailability Execute(this ICheckNameAvailabilityOperations operations, NameAvailabilityRequest nameAvailabilityRequest)
+            {
+                return operations.ExecuteAsync(nameAvailabilityRequest).GetAwaiter().GetResult();
+            }
+
+            /// <summary>
+            /// Check the availability of name for resource
+            /// </summary>
+            /// <param name='operations'>
+            /// The operations group for this extension method.
+            /// </param>
+            /// <param name='nameAvailabilityRequest'>
+            /// The required parameters for checking if resource name is available.
+            /// </param>
+            /// <param name='cancellationToken'>
+            /// The cancellation token.
+            /// </param>
+            public static async Task<NameAvailability> ExecuteAsync(this ICheckNameAvailabilityOperations operations, NameAvailabilityRequest nameAvailabilityRequest, CancellationToken cancellationToken = default(CancellationToken))
+            {
+                using (var _result = await operations.ExecuteWithHttpMessagesAsync(nameAvailabilityRequest, null, cancellationToken).ConfigureAwait(false))
+                {
+                    return _result.Body;
+                }
+            }
+
+    }
+}