BPASmartClient/BeDesignerSCADA/ViewModel/DataBusModel.cs

using BPASmartClient.SCADAControl;
using Newtonsoft.Json;
using System;
using System.Collections.Concurrent;
using System.IO;

namespace BeDesignerSCADA.ViewModel
{
    public class DataBusModel
    {
        #region 单例模式
        private static string path
        {
            get
            {
                Directory.CreateDirectory(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AccessFile\\JSON"));
                return AppDomain.CurrentDomain.BaseDirectory + "AccessFile\\JSON\\CommunicationPar.json";
            }
        }
        public static DataBusModel dataBus = null;

        public static DataBusModel GetInstance()
        {
            if (dataBus == null)
            {
                dataBus = new DataBusModel();
            }
            return dataBus;
        }
        #endregion

        #region 变量
        /// <summary>
        /// 变量地址保存
        /// key:地址
        /// value:变量
        /// </summary>
        private ConcurrentDictionary<string, CommunicationPar> _KeyValues { get; set; } = new ConcurrentDictionary<string, CommunicationPar>();
        public ConcurrentDictionary<string, CommunicationPar> KeyValues
        {
            get
            {
                return _KeyValues;
            }
            set
            {
                _KeyValues = value;

            }
        }
        #endregion
        /// <summary>
        /// 刷新界面管理器
        /// </summary>
        /// <param name="path"></param>
        public bool RefreshVariableManager(string path="")
        {
            bool IsSucess=false;
            try
            {
                if (File.Exists(path))
                {
                    CommunicationPar val = JsonConvert.DeserializeObject<CommunicationPar>(File.ReadAllText(path));
                    if (val != null)
                    {
                        if (KeyValues == null)
                        {
                            KeyValues = new ConcurrentDictionary<string, CommunicationPar>();
                        }
                        KeyValues[path] = val;
                        IsSucess = true;
                    }
                }
            }
            catch (Exception ex)
            {

            }
            return IsSucess;
        }

        /// <summary>
        /// 读取文件
        /// </summary>
        /// <returns></returns>
        public bool ReadFile()
        {
            bool IsSucess = false;
            try
            {
                if (File.Exists(path))
                {
                    CommunicationPar val = JsonConvert.DeserializeObject<CommunicationPar>(File.ReadAllText(path));
                    if (val != null)
                    {
                        if (KeyValues == null)
                        {
                            KeyValues = new ConcurrentDictionary<string, CommunicationPar>();
                        }
                        KeyValues[path] = val;
                        IsSucess = true;
                    }
                }
            }
            catch (Exception ex)
            {

            }
            return IsSucess ;
        }

    }
}