Support additionalProperties that accept all unbound properties. (see A…

…zure#1057) (Azure#1112)

* WIP: additionalProperties

* Add support for OpenAPI 'additionalProperties' that act as catch-all properties.

* Added description to generated additionalProperties

* updated gulpfile for additional properties test

AutoRest/AutoRest.Core/ClientModel/DictionaryType.cs

@@ -25,6 +25,12 @@ public DictionaryType()
         /// </summary>
         public string NameFormat { get; set; }
 
+        /// <summary>
+        /// Indicates that the class should deserialize properties with no matching class member into this collection.
+        /// </summary>
+        public bool SupportsAdditionalProperties { get; set; }
+
+
         /// <summary>
         /// Gets the type name
         /// </summary>
@@ -66,5 +72,6 @@ public override int GetHashCode()
         {
             return ValueType.GetHashCode();
         }
+
     }
 }

AutoRest/Generators/CSharp/CSharp.Tests/AdditionalPropertiesTests.cs

@@ -0,0 +1,73 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Reflection;
+using Fixtures.AdditionalProperties;
+using Fixtures.AdditionalProperties.Models;
+
+using Xunit;
+
+namespace Microsoft.Rest.Generator.CSharp.Tests
+{
+    [Collection("AdditionalProperties Tests")]
+    public class AdditionalPropertiesTests
+    {
+        [Fact]
+        public void VerifyWithTypedDictionary()
+        {
+            // make sure it's constructable
+            var withTypedDictionary = new WithTypedDictionary();
+            Assert.NotNull(withTypedDictionary);
+
+            // check to see if the JsonExtensionData attribute is on the member.
+            var property = typeof(WithTypedDictionary).GetProperty("AdditionalProperties");
+            Assert.NotNull(property);
+            Assert.True(property.GetCustomAttributes().Any(each => each.GetType().Name == "JsonExtensionDataAttribute"));
+
+            // check to see that the types of the AdditionalProperties object are correct
+            var propertyType = property.PropertyType;
+            Assert.Equal(new Type[] { typeof(string), typeof(Feature) }, propertyType.GenericTypeArguments);
+        }
+
+        [Fact]
+        public void VerifyWithUntypedDictionary()
+        {
+            // make sure it's constructable
+            var withUntypedDictionary = new WithUntypedDictionary();
+            Assert.NotNull(withUntypedDictionary);
+
+            // check to see if the JsonExtensionData attribute is on the member.
+            var property = typeof(WithUntypedDictionary).GetProperty("AdditionalProperties");
+            Assert.NotNull(property);
+            Assert.True(property.GetCustomAttributes().Any(each => each.GetType().Name == "JsonExtensionDataAttribute"));
+
+            // check to see that the types of the AdditionalProperties object are correct
+            var propertyType = property.PropertyType;
+            Assert.Equal(new Type[] { typeof(string), typeof(Object) }, propertyType.GenericTypeArguments);
+        }
+
+        [Fact]
+        public void VerifyWithStringDictionary()
+        {
+            // make sure it's constructable
+            var withStringDictionary = new WithStringDictionary();
+            Assert.NotNull(withStringDictionary);
+
+            // check to see if the JsonExtensionData attribute is on the member.
+            var property = typeof(WithStringDictionary).GetProperty("AdditionalProperties");
+            Assert.NotNull(property);
+            Assert.True(property.GetCustomAttributes().Any(each => each.GetType().Name == "JsonExtensionDataAttribute"));
+
+            // check to see that the types of the AdditionalProperties object are correct
+            var propertyType = property.PropertyType;
+            Assert.Equal(new Type[] { typeof(string), typeof(string) }, propertyType.GenericTypeArguments);
+        }
+
+    }
+}

AutoRest/Generators/CSharp/CSharp.Tests/Expected/Additional.Properties/Get.cs

@@ -0,0 +1,177 @@
+// 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.
+
+namespace Fixtures.AdditionalProperties
+{
+    using System;
+    using System.Linq;
+    using System.Collections.Generic;
+    using System.Net;
+    using System.Net.Http;
+    using System.Net.Http.Headers;
+    using System.Text;
+    using System.Text.RegularExpressions;
+    using System.Threading;
+    using System.Threading.Tasks;
+    using Microsoft.Rest;
+    using Microsoft.Rest.Serialization;
+    using Newtonsoft.Json;
+    using Models;
+
+    /// <summary>
+    /// Get operations.
+    /// </summary>
+    public partial class Get : IServiceOperations<PetStoreonHeroku>, IGet
+    {
+        /// <summary>
+        /// Initializes a new instance of the Get class.
+        /// </summary>
+        /// <param name='client'>
+        /// Reference to the service client.
+        /// </param>
+        public Get(PetStoreonHeroku client)
+        {
+            if (client == null) 
+            {
+                throw new ArgumentNullException("client");
+            }
+            this.Client = client;
+        }
+
+        /// <summary>
+        /// Gets a reference to the PetStoreonHeroku
+        /// </summary>
+        public PetStoreonHeroku Client { get; private set; }
+
+        /// <param name='limit'>
+        /// number of pets to return
+        /// </param>
+        /// <param name='customHeaders'>
+        /// Headers that will be added to request.
+        /// </param>
+        /// <param name='cancellationToken'>
+        /// The cancellation token.
+        /// </param>
+        /// <return>
+        /// A response object containing the response body and response headers.
+        /// </return>
+        public async Task<HttpOperationResponse<IList<Pet>>> PetsWithHttpMessagesAsync(int? limit = 11, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            if (limit > 10000)
+            {
+                throw new ValidationException(ValidationRules.InclusiveMaximum, "limit", 10000);
+            }
+            if (limit < 11)
+            {
+                throw new ValidationException(ValidationRules.InclusiveMinimum, "limit", 11);
+            }
+            // Tracing
+            bool _shouldTrace = ServiceClientTracing.IsEnabled;
+            string _invocationId = null;
+            if (_shouldTrace)
+            {
+                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
+                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
+                tracingParameters.Add("limit", limit);
+                tracingParameters.Add("cancellationToken", cancellationToken);
+                ServiceClientTracing.Enter(_invocationId, this, "Pets", tracingParameters);
+            }
+            // Construct URL
+            var _baseUrl = this.Client.BaseUri.AbsoluteUri;
+            var _url = new Uri(new Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "").ToString();
+            List<string> _queryParameters = new List<string>();
+            if (limit != null)
+            {
+                _queryParameters.Add(string.Format("limit={0}", Uri.EscapeDataString(SafeJsonConvert.SerializeObject(limit, this.Client.SerializationSettings).Trim('"'))));
+            }
+            if (_queryParameters.Count > 0)
+            {
+                _url += "?" + string.Join("&", _queryParameters);
+            }
+            // Create HTTP transport objects
+            HttpRequestMessage _httpRequest = new HttpRequestMessage();
+            HttpResponseMessage _httpResponse = null;
+            _httpRequest.Method = new HttpMethod("GET");
+            _httpRequest.RequestUri = new 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;
+            // Send Request
+            if (_shouldTrace)
+            {
+                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
+            }
+            cancellationToken.ThrowIfCancellationRequested();
+            _httpResponse = await this.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 HttpOperationException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
+                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
+                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<IList<Pet>>();
+            _result.Request = _httpRequest;
+            _result.Response = _httpResponse;
+            // Deserialize Response
+            if ((int)_statusCode == 200)
+            {
+                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
+                try
+                {
+                    _result.Body = SafeJsonConvert.DeserializeObject<IList<Pet>>(_responseContent, this.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;
+        }
+
+    }
+}

AutoRest/Generators/CSharp/CSharp.Tests/Expected/Additional.Properties/GetExtensions.cs

@@ -0,0 +1,53 @@
+// 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.
+
+namespace Fixtures.AdditionalProperties
+{
+    using System;
+    using System.Collections;
+    using System.Collections.Generic;
+    using System.Threading;
+    using System.Threading.Tasks;
+    using Microsoft.Rest;
+    using Models;
+
+    /// <summary>
+    /// Extension methods for Get.
+    /// </summary>
+    public static partial class GetExtensions
+    {
+            /// <param name='operations'>
+            /// The operations group for this extension method.
+            /// </param>
+            /// <param name='limit'>
+            /// number of pets to return
+            /// </param>
+            public static IList<Pet> Pets(this IGet operations, int? limit = 11)
+            {
+                return Task.Factory.StartNew(s => ((IGet)s).PetsAsync(limit), operations, CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Default).Unwrap().GetAwaiter().GetResult();
+            }
+
+            /// <param name='operations'>
+            /// The operations group for this extension method.
+            /// </param>
+            /// <param name='limit'>
+            /// number of pets to return
+            /// </param>
+            /// <param name='cancellationToken'>
+            /// The cancellation token.
+            /// </param>
+            public static async Task<IList<Pet>> PetsAsync(this IGet operations, int? limit = 11, CancellationToken cancellationToken = default(CancellationToken))
+            {
+                using (var _result = await operations.PetsWithHttpMessagesAsync(limit, null, cancellationToken).ConfigureAwait(false))
+                {
+                    return _result.Body;
+                }
+            }
+
+    }
+}

AutoRest/Generators/CSharp/CSharp.Tests/Expected/Additional.Properties/IGet.cs

@@ -0,0 +1,35 @@
+// 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.
+
+namespace Fixtures.AdditionalProperties
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Net.Http;
+    using System.Threading;
+    using System.Threading.Tasks;
+    using Microsoft.Rest;
+    using Models;
+
+    /// <summary>
+    /// Get operations.
+    /// </summary>
+    public partial interface IGet
+    {
+        /// <param name='limit'>
+        /// number of pets to return
+        /// </param>
+        /// <param name='customHeaders'>
+        /// The headers that will be added to request.
+        /// </param>
+        /// <param name='cancellationToken'>
+        /// The cancellation token.
+        /// </param>
+        Task<HttpOperationResponse<IList<Pet>>> PetsWithHttpMessagesAsync(int? limit = 11, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken));
+    }
+}