Add missing file BaseOutputStreamHandler.cs from recent commit e19defd

OpenSim/Framework/Servers/HttpServer/BaseOutputStreamHandler.cs

@@ -0,0 +1,60 @@
+/*
+ * 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 OpenSimulator 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.IO;
+
+namespace OpenSim.Framework.Servers.HttpServer
+{
+    /// <summary>
+    /// Base handler for writing to an output stream
+    /// </summary>
+    /// <remarks>
+    /// Inheriting classes should override ProcessRequest() rather than Handle()
+    /// </remarks>
+    public abstract class BaseOutputStreamHandler : BaseRequestHandler, IRequestHandler
+    {
+        protected BaseOutputStreamHandler(string httpMethod, string path) : this(httpMethod, path, null, null) {}
+
+        protected BaseOutputStreamHandler(string httpMethod, string path, string name, string description)
+            : base(httpMethod, path, name, description) {}
+
+        public virtual void Handle(
+            string path, Stream request, Stream response, IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
+        {
+            RequestsReceived++;
+
+            ProcessRequest(path, request, response, httpRequest, httpResponse);
+
+            RequestsHandled++;
+        }
+
+        protected virtual void ProcessRequest(
+            string path, Stream request, Stream response, IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
+        {
+        }
+    }
+}