using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace POSV.Utils
{
    public class IdWorkerUtils
    {
        static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();

        private static object _lock = new object();

        private static IdWorkerUtils _instance = null;

        private static IdWorker _IdWorker = null;

        public static IdWorkerUtils Instance
        {
            get
            {
                if (_instance == null)
                {
                    lock (_lock)
                    {
                        _instance = new IdWorkerUtils();

                        _IdWorker = new IdWorker(1 , 1 , 0);
                    }
                }
                return _instance;
            }
        }

        public string NextId()
        {
            try
            {
                return _IdWorker.NextId().ToString();
            }
            catch
            {
                return ObjectId.GenerateNewStringId();
            }
            
        }
    }
}