Committing the changed tree

OpenSim/Framework/Servers/HttpServer/RestObjectPosterResponse.cs

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+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * 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 the OpenSim Project 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 DEVELOPERS ``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 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.
+ */
+
+using System;
+using System.IO;
+using System.Net;
+using System.Text;
+using System.Xml;
+using System.Xml.Serialization;
+
+namespace OpenSim.Framework.Servers.HttpServer
+{
+    public delegate void ReturnResponse<T>(T reponse);
+
+    /// <summary>
+    /// Makes an asynchronous REST request with a callback to invoke with the response.
+    /// </summary>
+    public class RestObjectPosterResponse<TResponse>
+    {
+//        private static readonly log4net.ILog m_log
+//            = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+
+        public ReturnResponse<TResponse> ResponseCallback;
+
+        public void BeginPostObject<TRequest>(string requestUrl, TRequest obj)
+        {
+            BeginPostObject("POST", requestUrl, obj);
+        }
+
+        public void BeginPostObject<TRequest>(string verb, string requestUrl, TRequest obj)
+        {
+            Type type = typeof (TRequest);
+
+            WebRequest request = WebRequest.Create(requestUrl);
+            request.Method = verb;
+            request.ContentType = "text/xml";
+            request.Timeout = 10000;
+
+            MemoryStream buffer = new MemoryStream();
+
+            XmlWriterSettings settings = new XmlWriterSettings();
+            settings.Encoding = Encoding.UTF8;
+
+            using (XmlWriter writer = XmlWriter.Create(buffer, settings))
+            {
+                XmlSerializer serializer = new XmlSerializer(type);
+                serializer.Serialize(writer, obj);
+                writer.Flush();
+            }
+
+            int length = (int) buffer.Length;
+            request.ContentLength = length;
+
+            Stream requestStream = request.GetRequestStream();
+            requestStream.Write(buffer.ToArray(), 0, length);
+            requestStream.Close();
+            // IAsyncResult result = request.BeginGetResponse(AsyncCallback, request);
+            request.BeginGetResponse(AsyncCallback, request);
+        }
+
+        private void AsyncCallback(IAsyncResult result)
+        {
+            WebRequest request = (WebRequest) result.AsyncState;
+            using (WebResponse resp = request.EndGetResponse(result))
+            {
+                TResponse deserial;
+                XmlSerializer deserializer = new XmlSerializer(typeof (TResponse));
+                Stream stream = resp.GetResponseStream();
+
+                // This is currently a bad debug stanza since it gobbles us the response...
+//                StreamReader reader = new StreamReader(stream);
+//                m_log.DebugFormat("[REST OBJECT POSTER RESPONSE]: Received {0}", reader.ReadToEnd());
+
+                deserial = (TResponse) deserializer.Deserialize(stream);
+
+                if (deserial != null && ResponseCallback != null)
+                {
+                    ResponseCallback(deserial);
+                }
+            }
+        }
+    }
+}