SHJX_cod/SHJX.Service.Control/TimerControl/ChangeTaskState/ChangeStateFactory.cs

using System;
using SHJX.Service.Common.ReadXML;
using SHJX.Service.Control.Interface;
using System.Collections.Concurrent;
using SHJX.Service.Common.Logging;
using Microsoft.Extensions.Logging;
namespace SHJX.Service.Control.TimerControl.ChangeTaskState
{
    public class ChangeStateFactory
    {
        private static readonly ILogger logger = LogFactory.BuildLogger(typeof(ChangeStateFactory));
        private readonly ReadConfigUtil _config;
        private readonly ConcurrentDictionary<string, ChangeTaskStateImp> _writeTasks = new ConcurrentDictionary<string, ChangeTaskStateImp>();
        public ChangeStateFactory(  ReadConfigUtil config)
        {
            _config = config;
        }

        /// <summary>
        /// 获取任务下发类
        /// </summary>
        /// <param name="opKey"></param>
        /// <returns></returns>
        public ChangeTaskStateImp Get(string opKey)
        {
            try
            {
                if (_writeTasks.TryGetValue(opKey, out var writeTask))
                    return writeTask;
                ChangeTaskStateImp writeTaskOperate = opKey switch
                {
                    "Sample" => new SampleChangeState(_config), //样品
                    "Calibration" => new CalibrationChangeState(_config), //标定
                    "Wash" => new WashChangeState(_config), //润洗
                    _ => throw new ArgumentNullException()
                };
                _writeTasks.TryAdd(opKey, writeTaskOperate);
                return writeTaskOperate;
            }
            catch (Exception ex)
            {
                logger.LogError(ex.ToString());
                return null;
            }
        }
    }
}