Revert "THRIFT-4982 Remove deprecated C# bindings from the code base"

Only compiler, test, lib and tutorial code.

1 files changed, 97 insertions, 0 deletions

diff --git a/lib/csharp/src/Transport/THttpTaskAsyncHandler.cs b/lib/csharp/src/Transport/THttpTaskAsyncHandler.cs
new file mode 100644
index 000000000..e491f32cb
--- /dev/null
+++ b/lib/csharp/src/Transport/THttpTaskAsyncHandler.cs
@@ -0,0 +1,97 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ * Contains some contributions under the Thrift Software License.
+ * Please see doc/old-thrift-license.txt in the Thrift distribution for
+ * details.
+ */
+
+using System.Threading.Tasks;
+using System.Web;
+using Thrift.Protocol;
+
+namespace Thrift.Transport
+{
+    /// <summary>
+    /// An async task based HTTP handler for processing thrift services.
+    /// </summary>
+    public class THttpTaskAsyncHandler : HttpTaskAsyncHandler
+    {
+        private readonly TAsyncProcessor _processor;
+        private readonly TProtocolFactory _inputProtocolFactory;
+        private readonly TProtocolFactory _outputProtocolFactory;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="THttpTaskAsyncHandler"/> class
+        /// using the <see cref="TBinaryProtocol.Factory"/> for both input and output streams.
+        /// </summary>
+        /// <param name="processor">The async processor implementation.</param>
+        public THttpTaskAsyncHandler(TAsyncProcessor processor)
+            : this(processor, new TBinaryProtocol.Factory())
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="THttpTaskAsyncHandler"/> class
+        /// using <paramref name="protocolFactory"/> for both input and output streams.
+        /// </summary>
+        /// <param name="processor">The async processor implementation.</param>
+        /// <param name="protocolFactory">The protocol factory.</param>
+        public THttpTaskAsyncHandler(TAsyncProcessor processor, TProtocolFactory protocolFactory)
+            : this(processor, protocolFactory, protocolFactory)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="THttpTaskAsyncHandler"/> class.
+        /// </summary>
+        /// <param name="processor">The async processor implementation.</param>
+        /// <param name="inputProtocolFactory">The input protocol factory.</param>
+        /// <param name="outputProtocolFactory">The output protocol factory.</param>
+        public THttpTaskAsyncHandler(TAsyncProcessor processor, TProtocolFactory inputProtocolFactory,
+            TProtocolFactory outputProtocolFactory)
+        {
+            _processor = processor;
+            _inputProtocolFactory = inputProtocolFactory;
+            _outputProtocolFactory = outputProtocolFactory;
+        }
+
+        public override async Task ProcessRequestAsync(HttpContext context)
+        {
+            var transport = new TStreamTransport(context.Request.InputStream, context.Response.OutputStream);
+
+            try
+            {
+                var input = _inputProtocolFactory.GetProtocol(transport);
+                var output = _outputProtocolFactory.GetProtocol(transport);
+
+                while (await _processor.ProcessAsync(input, output))
+                {
+                }
+            }
+            catch (TTransportException)
+            {
+                // Client died, just move on
+            }
+            finally
+            {
+                transport.Close();
+            }
+        }
+    }
+}