CommandManager.cs :  » Network-Clients » iReaper » IReaper » Command » C# / CSharp Open Source

using System;
using System.Reflection;
using System.Collections.Generic;
using System.Text;

namespace IReaper.Command{
    /// <summary>
    /// ICommand
    /// </summary>
    class EmptyCommand : CommandBase
    {
        public override CommandFamily Family
        {
            get { return CommandFamily.Command_Empty; }
        }

        public override void CommandBody(object sender, params object[] paras)
        {
        }
    }

    /*  2006.8.23
     *  Command
     *  Command
     *  
     */
    class CommandManager
    {
        static Dictionary<CommandFamily, CommandBase> commandlist = new Dictionary<CommandFamily, CommandBase>();
        static CommandBase emptyCommand = new EmptyCommand();


        static CommandManager()
        {
            LoadCommandFromFile();
        }

        private static void LoadCommandFromFile()
        {
            Type[] types = Assembly.GetExecutingAssembly().GetTypes();
            for (int i = 0; i < types.Length; i++)
            {
                Type t = types[i];
                if (t.IsSubclassOf(typeof(CommandBase)))
                {
                    CommandBase newCommand = Activator.CreateInstance(t) as CommandBase;
                    if (newCommand != null)
                        RegisteCommand(newCommand);
                }
            }
        }


        internal static CommandBase GetCommand(CommandFamily Family)
        {
            //
            if (commandlist.ContainsKey(Family))
                return commandlist[Family];
            //
            return emptyCommand;    
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="Family"></param>
        /// <param name="command"></param>
        internal static void RegisteCommand(CommandBase command)
        {
            if (!commandlist.ContainsKey(command.Family))
                commandlist.Add(command.Family, command);
        }
    }

    enum CommandFamily
    {
        #region 
        Command_RemoveFile,
        Command_SynchorizeCourseData,
        Command_RefreshTreeNode,
        Command_OpenAuthenBrowser,
        Command_OpenOnDemandViedo,
        #endregion
        #region 
        Command_RevertRemind,
        #endregion
        #region 
        Command_DownloadFile,
        Command_PauseDownload,
        Command_OpenCourseFile,
        Command_FileTransfer,
        Command_ImportFiles,
        #endregion
        #region 
        Command_CloseSystem,
        #endregion
        #region RSS
        Command_GetRssFeedFromNet,
        Command_UpdateRSSFeed,
        Command_RemoveRssFeed,
        #endregion
        Command_Empty
    }
}