Stand Alone ScriptEngine: early framework, ongoing planning (don't touch yet, will go through major reorganizing). Still a LOT of things needs to be solved...

1 files changed, 124 insertions, 0 deletions

diff --git a/OpenSim/Grid/ScriptServer/ScriptEngineLoader.cs b/OpenSim/Grid/ScriptServer/ScriptEngineLoader.cs
new file mode 100644
index 0000000..1b5dc39
--- /dev/null
+++ b/OpenSim/Grid/ScriptServer/ScriptEngineLoader.cs
@@ -0,0 +1,124 @@
+/*
+* 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.Reflection;
+using OpenSim.Framework.Console;

+

+namespace OpenSim.Grid.ScriptServer
+{
+    public class ScriptEngineLoader
+    {
+        private LogBase m_log;
+
+        public ScriptEngineLoader(LogBase logger)
+        {
+            m_log = logger;
+        }
+
+        public ScriptEngineInterface LoadScriptEngine(string EngineName)
+        {
+            ScriptEngineInterface ret = null;
+            try
+            {
+                ret =
+                    LoadAndInitAssembly(
+                        Path.Combine("ScriptEngines", "OpenSim.Region.ScriptEngine." + EngineName + ".dll"),
+                        "OpenSim.Region.ScriptEngine." + EngineName + ".ScriptEngine");
+            }
+            catch (Exception e)
+            {
+                m_log.Error("ScriptEngine",
+                            "Error loading assembly \"" + EngineName + "\": " + e.Message + ", " +
+                            e.StackTrace.ToString());
+            }
+            return ret;
+        }
+
+        /// <summary>
+        /// Does actual loading and initialization of script Assembly
+        /// </summary>
+        /// <param name="FreeAppDomain">AppDomain to load script into</param>
+        /// <param name="FileName">FileName of script assembly (.dll)</param>
+        /// <returns></returns>
+        private ScriptEngineInterface LoadAndInitAssembly(string FileName, string NameSpace)
+        {
+            //Common.SendToDebug("Loading ScriptEngine Assembly " + FileName);
+            // Load .Net Assembly (.dll)
+            // Initialize and return it
+
+            // TODO: Add error handling
+
+            Assembly a;
+            //try
+            //{
+
+
+            // Load to default appdomain (temporary)
+            a = Assembly.LoadFrom(FileName);
+            // Load to specified appdomain
+            // TODO: Insert security
+            //a = FreeAppDomain.Load(FileName);
+            //}
+            //catch (Exception e)
+            //{
+            //    m_log.Error("ScriptEngine", "Error loading assembly \"" + FileName + "\": " + e.ToString());
+            //}
+
+
+            //Console.WriteLine("Loading: " + FileName);
+            //foreach (Type _t in a.GetTypes())
+            //{
+            //    Console.WriteLine("Type: " + _t.ToString());
+            //}
+
+            Type t;
+            //try
+            //{
+            t = a.GetType(NameSpace, true);
+            //}
+            //catch (Exception e)
+            //{
+            //    m_log.Error("ScriptEngine", "Error initializing type \"" + NameSpace + "\" from \"" + FileName + "\": " + e.ToString());
+            //}
+
+            ScriptEngineInterface ret;
+            //try
+            //{
+            ret = (ScriptEngineInterface) Activator.CreateInstance(t);
+            //}
+            //catch (Exception e)
+            //{
+            //    m_log.Error("ScriptEngine", "Error initializing type \"" + NameSpace + "\" from \"" + FileName + "\": " + e.ToString());
+            //}
+
+            return ret;
+        }
+    }
+}

+