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using System;
using System.IO;
using System.Reflection;
using System.Collections;
namespace Boland.Plugin
{
public interface IPlugin
{
Type PluginInterface {get;}
}
public class PluginManager
{
public virtual ArrayList GetPlugins(Type pluginType)
{
if(pluginType ==null)
{
Console.WriteLine("The plugin type was not set");
return new ArrayList(0);
}
try
{
string currentDirectory =
System.AppDomain.CurrentDomain.BaseDirectory;
string[] pluginFilenames = Directory.GetFiles(
currentDirectory, @"*.dll");
ArrayList plugins = new ArrayList();
foreach(string pluginFilename in pluginFilenames)
{
Assembly assembly = Assembly.LoadFrom(pluginFilename);
Type[] assemblyPlugins = assembly.GetExportedTypes();
foreach(Type plugin in assemblyPlugins)
{
if(plugin.GetInterface(pluginType.FullName)==null)
{
continue;
}
plugins.Add(Activator.CreateInstance(plugin));
}
}
return plugins;
}
catch(BadImageFormatException bife)
{
Console.WriteLine(bife.ToString());
return new ArrayList(0);
}
}
}
}
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