116 lines
3.2 KiB
C#
116 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using PluginManager.Others;
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namespace PluginManager.Loaders;
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internal class LoaderArgs : EventArgs
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{
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internal string? PluginName { get; init; }
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internal string? TypeName { get; init; }
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internal bool IsLoaded { get; init; }
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internal Exception? Exception { get; init; }
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internal object? Plugin { get; init; }
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}
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internal class Loader<T>
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{
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internal Loader(string path, string extension)
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{
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this.path = path;
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this.extension = extension;
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}
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private string path { get; }
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private string extension { get; }
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internal event FileLoadedEventHandler? FileLoaded;
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internal event PluginLoadedEventHandler? PluginLoaded;
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internal List<T>? Load()
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{
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var list = new List<T>();
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if (!Directory.Exists(path))
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{
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Directory.CreateDirectory(path);
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return null;
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}
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var files = Directory.GetFiles(path, $"*.{extension}", SearchOption.AllDirectories);
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foreach (var file in files)
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{
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Assembly.LoadFrom(file);
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if (FileLoaded != null)
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{
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var args = new LoaderArgs
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{
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Exception = null,
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TypeName = nameof(T),
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IsLoaded = false,
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PluginName = new FileInfo(file).Name.Split('.')[0],
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Plugin = null
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};
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FileLoaded.Invoke(args);
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}
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}
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try
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{
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var interfaceType = typeof(T);
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var types = AppDomain.CurrentDomain.GetAssemblies()
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.SelectMany(a => a.GetTypes())
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.Where(p => interfaceType.IsAssignableFrom(p) && p.IsClass)
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.ToArray();
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list.Clear();
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foreach (var type in types)
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try
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{
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var plugin = (T)Activator.CreateInstance(type)!;
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list.Add(plugin);
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if (PluginLoaded != null)
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PluginLoaded.Invoke(new LoaderArgs
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{
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Exception = null,
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IsLoaded = true,
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PluginName = type.FullName,
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TypeName = nameof(T),
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Plugin = plugin
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}
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);
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}
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catch (Exception ex)
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{
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if (PluginLoaded != null)
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PluginLoaded.Invoke(new LoaderArgs
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{
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Exception = ex,
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IsLoaded = false,
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PluginName = type.FullName,
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TypeName = nameof(T)
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});
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}
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}
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catch (Exception ex)
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{
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Functions.WriteErrFile(ex.ToString());
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}
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return list;
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}
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internal delegate void FileLoadedEventHandler(LoaderArgs args);
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internal delegate void PluginLoadedEventHandler(LoaderArgs args);
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} |