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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.
*/
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Text;
using log4net;
using OpenSim.ApplicationPlugins.ScriptEngine.Components;
namespace OpenSim.ApplicationPlugins.ScriptEngine
{
/// <summary>
/// Used to load ScriptEngine component .dll's
/// </summary>
internal class ComponentLoader
{
internal static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private ScriptEnginePlugin scriptEnginePlugin;
public ComponentLoader(ScriptEnginePlugin sep)
{
scriptEnginePlugin = sep;
}
/// <summary>
/// Load components from directory
/// </summary>
/// <param name="directory"></param>
public void Load(string directory)
{
// We may want to change how this functions as currently it required unique class names for each component
foreach (string file in Directory.GetFiles(directory, "*.dll"))
{
//m_log.DebugFormat("[ScriptEngine]: Loading: [{0}].", file);
Assembly componentAssembly = Assembly.LoadFrom(file);
if (componentAssembly != null)
{
try
{
// Go through all types in the assembly
foreach (Type componentType in componentAssembly.GetTypes())
{
if (componentType.IsPublic
&& !componentType.IsAbstract)
{
if (componentType.IsSubclassOf(typeof (ComponentBase)))
{
// We have found an type which is derived from ProdiverBase, add it to provider list
m_log.InfoFormat("[ScriptEngine]: Adding component: {0}", componentType.Name);
lock (ComponentRegistry.providers)
{
ComponentRegistry.providers.Add(componentType.Name, componentType);
}
}
if (componentType.IsSubclassOf(typeof(RegionScriptEngineBase)))
{
// We have found an type which is derived from RegionScriptEngineBase, add it to engine list
m_log.InfoFormat("[ScriptEngine]: Adding script engine: {0}", componentType.Name);
lock (ComponentRegistry.scriptEngines)
{
ComponentRegistry.scriptEngines.Add(componentType.Name, componentType);
}
}
}
}
}
catch
(ReflectionTypeLoadException)
{
m_log.InfoFormat("[ScriptEngine]: Could not load types for [{0}].", componentAssembly.FullName);
}
} //if
} //foreach
}
}
}
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