iot/projects/Application/Domain/IoTCenter/IoTData.cs

using Infrastructure.Domain;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Text.Encodings.Web;
using System.Text.Json;
using System.Text.Unicode;

namespace Application.Domain.Entities
{
    [Display(Name = "数据")]
    [Scope]
    [Group("物联管控", "IoTCenter")]
    public class IoTData : BaseEntity
    {
        [Display(Name = "键")]
        [Required(ErrorMessage = nameof(RequiredAttribute))]
        public string Key { get; set; }

        [Display(Name = "值")]
        public string Value { get; set; }

        [Display(Name = "名称")]
        public string Name { get; set; }

        [Display(Name = "数据类型")]
        public IoTDataType DataType { get; set; }

        [Display(Name = "数值类型")]
        public IoTValueType ValueType { get; set; }

        [Display(Name = "枚举定义")]
        public String EnumValues { get; set; }

        [Display(Name = "单位")]
        public string Unit { get; set; }

        [Display(Name = "描述")]
        public string Description { get; set; }

        [Display(Name = "时间戳")]
        public long Timestamp { get; set; }

        [Display(Name = "隐藏")]
        public bool Hidden { get; set; }

        [Display(Name = "设备Id")]
        public Guid IoTDeviceId { get; set; }

        [Display(Name = "设备")]
        public IoTDevice IoTDevice { get; set; }

        public List<IoTTigger> IoTTiggers { get; set; } = new List<IoTTigger>();

        public Dictionary<int,string> GetEnumValues()
        {
            return JsonSerializer.Deserialize<Dictionary<int, string>>(this.EnumValues);
        }

        public void SetEnumValues(Dictionary<int, string> values)
        {
            this.EnumValues = JsonSerializer.Serialize(values,new JsonSerializerOptions { 
                Encoder= JavaScriptEncoder.Create(UnicodeRanges.All) 
            });
        }

        public dynamic GetValue()
        {
            if (this.ValueType == IoTValueType.Int)
            {
                return Convert.ToInt32(this.Value);
            }
            else if (this.ValueType == IoTValueType.Float)
            {
                return Convert.ToSingle(this.Value);
            }
            else if (this.ValueType == IoTValueType.Long)
            {
                return Convert.ToInt64(this.Value);
            }
            else
            {
                return DateTimeOffset.FromUnixTimeSeconds(long.Parse(this.Value.Trim()));
            }
        }
    }
}