/*

* Created by SharpDevelop.

* User: elijah

* Date: 12/21/2011

* Time: 10:52 AM

*

* To change this template use Tools | Options | Coding | Edit Standard Headers.

*/

using System;

using System.Collections.Generic;

using System.Reflection;

namespace SharpLua

{

/// <summary>

/// Loads dll's and exe's that have the ILuaLibrary interface

/// </summary>

public class ExternalLibraryLoader

{

private ExternalLibraryLoader()

{ }

/// <summary>

/// Loads a dll or exe and checks for Lua libraries

/// </summary>

/// <param name="FileName"></param>

public static string[] Load(string FileName)

{

List<string> modules = new List<string>();

try {

//Create a new assembly from the plugin file we're adding..

Assembly pluginAssembly = Assembly.LoadFrom(FileName);

//Next we'll loop through all the Types found in the assembly

if (pluginAssembly != null) {

foreach (Type pluginType in pluginAssembly.GetTypes()) {

//Only look at public types

if (pluginType.IsPublic) {

//Only look at non-abstract types

if (!pluginType.IsAbstract) {

//Gets a type object of the interface we need the plugins to match

Type typeInterface = pluginType.GetInterface("SharpLua.Library.ILuaLibrary", true);

//Make sure the interface we want to use actually exists

if ((typeInterface != null)) {

try {

Library.ILuaLibrary lib = (Library.ILuaLibrary)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));

//Call initialization for the plugin

lib.RegisterModule(LuaRuntime.GlobalEnvironment);

modules.Add(lib.ModuleName);

} catch (Exception ex) {

Console.WriteLine("Error: " + ex.ToString());

}

} else {

}

typeInterface = null;

// Clean up

}

}

}

}

if (pluginAssembly == null) {

throw new Exception("Empty Assembly!");

}

pluginAssembly = null;

//more cleanup

} catch (Exception) {

}

return modules.ToArray();

}

}

}