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namespace FolderWatch_Service
{
    public partial class FolderWatch_Service : ServiceBase
    {
        DataTable dt_watch_folders = new DataTable("watch_folders");

        public FolderWatch_Service()
        {
            InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            try
            {
                create_datatable();
                dt_watch_folders.ReadXml("c:\\folders.xml");
                this.doActions(dt_watch_folders);
            } catch (Exception e)
            {
                Console.WriteLine("Error: Cannot start Service Please check WatchFolder XML (First Argument for the Service)" + e.ToString());
            }
        }

        // Creating seperated Threads
        private void doActions(DataTable dt_watch_folders)
        {
            foreach (DataRow dr in dt_watch_folders.Rows)
            {
                MyThreads m = new MyThreads();
                m.source_folder = dr["source_folder"].ToString();
                m.target_folder = dr["target_folder"].ToString();
                m.sleep_time = Convert.ToInt32(dr["recheck_time"].ToString());
                Thread t = new Thread(new ThreadStart(m.thread_moving));
                t.IsBackground = true;
                t.Name = "Moving Threads";
                t.Start();
            }
        }
        private void create_datatable()
        {
            this.dt_watch_folders.Columns.Add("source_folder");
            this.dt_watch_folders.Columns.Add("target_folder");
            this.dt_watch_folders.Columns.Add("action");
            this.dt_watch_folders.Columns.Add("recheck_time");
        }

        // Nested Class MyThreads
        class MyThreads
        {
            public string source_folder;
            public string target_folder;
            public int sleep_time;

            public void thread_moving()
            {
                while (true)
                {
                    try
                    {
                        DirectoryInfo dir = new DirectoryInfo(source_folder);
                        FileInfo[] files = dir.GetFiles();
                        foreach (FileInfo aFile in files)
                        {
                            string newtarget = target_folder + "\\" + aFile.Name;
                            aFile.MoveTo(newtarget);
                            Console.WriteLine(newtarget);
                        }

                    }
                    catch (Exception e)
                    {
                        Console.WriteLine("Error: Could not move data: " + e.ToString());
                    }
                    Thread.Sleep(sleep_time);
                }
            }
        }


        protected override void OnStop()
        {
        }
    }
}