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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.
*/
/* Original code: Tedd Hansen */
using System;
using System.IO;
using System.Reflection;
using log4net;
namespace OpenSim.Region.Environment.Scenes.Scripting
{
public class ScriptEngineLoader
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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);
}
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 \String.Empty + 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 \String.Empty + NameSpace + "\" from \String.Empty + FileName + "\": " + e.ToString());
//}
ScriptEngineInterface ret;
//try
//{
ret = (ScriptEngineInterface) Activator.CreateInstance(t);
//}
//catch (Exception e)
//{
// m_log.Error("[ScriptEngine]: Error initializing type \String.Empty + NameSpace + "\" from \String.Empty + FileName + "\": " + e.ToString());
//}
return ret;
}
}
}
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