/* * 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 { 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"; 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); // 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); } } } } }