Initial checkin of gRPC to third_party/

third_party/grpc/src/csharp/Grpc.Core/ServerServiceDefinition.cs

+#region Copyright notice and license
+
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using Grpc.Core.Internal;
+
+namespace Grpc.Core
+{
+    /// <summary>
+    /// Mapping of method names to server call handlers.
+    /// Normally, the <c>ServerServiceDefinition</c> objects will be created by the <c>BindService</c> factory method 
+    /// that is part of the autogenerated code for a protocol buffers service definition.
+    /// </summary>
+    public class ServerServiceDefinition
+    {
+        readonly ReadOnlyDictionary<string, IServerCallHandler> callHandlers;
+
+        private ServerServiceDefinition(Dictionary<string, IServerCallHandler> callHandlers)
+        {
+            this.callHandlers = new ReadOnlyDictionary<string, IServerCallHandler>(callHandlers);
+        }
+
+        internal IDictionary<string, IServerCallHandler> CallHandlers
+        {
+            get
+            {
+                return this.callHandlers;
+            }
+        }
+
+        /// <summary>
+        /// Creates a new builder object for <c>ServerServiceDefinition</c>.
+        /// </summary>
+        /// <param name="serviceName">The service name.</param>
+        /// <returns>The builder object.</returns>
+        public static Builder CreateBuilder(string serviceName)
+        {
+            return new Builder(serviceName);
+        }
+
+        /// <summary>
+        /// Builder class for <see cref="ServerServiceDefinition"/>.
+        /// </summary>
+        public class Builder
+        {
+            readonly string serviceName;
+            readonly Dictionary<string, IServerCallHandler> callHandlers = new Dictionary<string, IServerCallHandler>();
+
+            /// <summary>
+            /// Creates a new instance of builder.
+            /// </summary>
+            /// <param name="serviceName">The service name.</param>
+            public Builder(string serviceName)
+            {
+                this.serviceName = serviceName;
+            }
+
+            /// <summary>
+            /// Adds a definitions for a single request - single response method.
+            /// </summary>
+            /// <typeparam name="TRequest">The request message class.</typeparam>
+            /// <typeparam name="TResponse">The response message class.</typeparam>
+            /// <param name="method">The method.</param>
+            /// <param name="handler">The method handler.</param>
+            /// <returns>This builder instance.</returns>
+            public Builder AddMethod<TRequest, TResponse>(
+                Method<TRequest, TResponse> method,
+                UnaryServerMethod<TRequest, TResponse> handler)
+                    where TRequest : class
+                    where TResponse : class
+            {
+                callHandlers.Add(method.FullName, ServerCalls.UnaryCall(method, handler));
+                return this;
+            }
+
+            /// <summary>
+            /// Adds a definitions for a client streaming method.
+            /// </summary>
+            /// <typeparam name="TRequest">The request message class.</typeparam>
+            /// <typeparam name="TResponse">The response message class.</typeparam>
+            /// <param name="method">The method.</param>
+            /// <param name="handler">The method handler.</param>
+            /// <returns>This builder instance.</returns>
+            public Builder AddMethod<TRequest, TResponse>(
+                Method<TRequest, TResponse> method,
+                ClientStreamingServerMethod<TRequest, TResponse> handler)
+                    where TRequest : class
+                    where TResponse : class
+            {
+                callHandlers.Add(method.FullName, ServerCalls.ClientStreamingCall(method, handler));
+                return this;
+            }
+
+            /// <summary>
+            /// Adds a definitions for a server streaming method.
+            /// </summary>
+            /// <typeparam name="TRequest">The request message class.</typeparam>
+            /// <typeparam name="TResponse">The response message class.</typeparam>
+            /// <param name="method">The method.</param>
+            /// <param name="handler">The method handler.</param>
+            /// <returns>This builder instance.</returns>
+            public Builder AddMethod<TRequest, TResponse>(
+                Method<TRequest, TResponse> method,
+                ServerStreamingServerMethod<TRequest, TResponse> handler)
+                    where TRequest : class
+                    where TResponse : class
+            {
+                callHandlers.Add(method.FullName, ServerCalls.ServerStreamingCall(method, handler));
+                return this;
+            }
+
+            /// <summary>
+            /// Adds a definitions for a bidirectional streaming method.
+            /// </summary>
+            /// <typeparam name="TRequest">The request message class.</typeparam>
+            /// <typeparam name="TResponse">The response message class.</typeparam>
+            /// <param name="method">The method.</param>
+            /// <param name="handler">The method handler.</param>
+            /// <returns>This builder instance.</returns>
+            public Builder AddMethod<TRequest, TResponse>(
+                Method<TRequest, TResponse> method,
+                DuplexStreamingServerMethod<TRequest, TResponse> handler)
+                    where TRequest : class
+                    where TResponse : class
+            {
+                callHandlers.Add(method.FullName, ServerCalls.DuplexStreamingCall(method, handler));
+                return this;
+            }
+
+            /// <summary>
+            /// Creates an immutable <c>ServerServiceDefinition</c> from this builder.
+            /// </summary>
+            /// <returns>The <c>ServerServiceDefinition</c> object.</returns>
+            public ServerServiceDefinition Build()
+            {
+                return new ServerServiceDefinition(callHandlers);
+            }
+        }
+    }
+}