Implemented plugin support for ClientStack, with LindenUDP as the default plugin. This makes it easy for developers to experiment with alternative communication protocols

1 files changed, 81 insertions, 0 deletions

diff --git a/OpenSim/Region/ClientStack/ClientStackManager.cs b/OpenSim/Region/ClientStack/ClientStackManager.cs
new file mode 100644
index 0000000..b5cd06a
--- /dev/null
+++ b/OpenSim/Region/ClientStack/ClientStackManager.cs
@@ -0,0 +1,81 @@
+/*
+ * 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.Net;
+using System.Reflection;
+using log4net;
+using OpenSim.Framework;
+using OpenSim.Region.ClientStack;
+using OpenSim.Framework.Communications;
+using OpenSim.Framework.Communications.Cache;
+
+namespace OpenSim.Region.Environment
+{
+    public class ClientStackManager
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        private Type plugin;
+        private Assembly pluginAssembly;
+
+        public ClientStackManager(string dllName) {
+            m_log.Info("[CLIENTSTACK]: Attempting to load " + dllName);
+
+            plugin=null;
+            pluginAssembly = Assembly.LoadFrom(dllName);
+
+            foreach (Type pluginType in pluginAssembly.GetTypes())
+            {
+                if (pluginType.IsPublic)
+                {
+                    Type typeInterface = pluginType.GetInterface("IClientNetworkServer", true);
+
+                    if (typeInterface != null)
+                    {
+                        m_log.Info("[CLIENTSTACK]: Added IClientNetworkServer Interface");
+                        plugin = pluginType;
+                        return;
+                    }
+                }
+            }
+        }
+
+        public IClientNetworkServer CreateServer(IPAddress _listenIP, ref uint port, int proxyPortOffset, bool allow_alternate_port, AssetCache assetCache, AgentCircuitManager authenticateClass)
+        {
+            if (plugin != null)
+            {
+                IClientNetworkServer server =
+                    (IClientNetworkServer) Activator.CreateInstance(pluginAssembly.GetType(plugin.ToString()));
+                server.Initialise(_listenIP, ref port, proxyPortOffset, allow_alternate_port, assetCache, authenticateClass);
+                return server;
+            }
+            m_log.Error("[CLIENTSTACK] Couldn't initialize a new server");
+            return null;
+        }
+    }
+}