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path: root/OpenSim/Region/ScriptEngine/Shared/AssemblyResolver.cs
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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 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;
using System.IO;
using System.Reflection;

namespace OpenSim.Region.ScriptEngine.Shared
{
    [Serializable]
    public class AssemblyResolver : MarshalByRefObject
    {
        public static Assembly OnAssemblyResolve(object sender,
                ResolveEventArgs args)
        {
            if (!(sender is System.AppDomain))
                return null;

            AppDomain myDomain = (AppDomain)sender;
            string dirName = myDomain.FriendlyName;
            string ScriptEnginesPath = myDomain.SetupInformation.PrivateBinPath;

            string[] pathList = new string[] {"", "caches", ScriptEnginesPath,
                                              Path.Combine(ScriptEnginesPath, dirName)};

            string assemblyName = args.Name;
            if (assemblyName.IndexOf(",") != -1)
                assemblyName = args.Name.Substring(0, args.Name.IndexOf(","));

            foreach (string s in pathList)
            {
                string path = Path.Combine(Directory.GetCurrentDirectory(),
                        Path.Combine(s, assemblyName))+".dll";

//                    Console.WriteLine("Trying to resolve {0}", path);

                if (File.Exists(path))
                    return Assembly.LoadFrom(path);
            }

            return null;
        }
    }
}