iot/projects/IoT.Shared/Application/Domain/Entities/Device.cs

using Infrastructure.Domain;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;

namespace Application.Domain.Entities
{
    [Display(Name = "设备")]
    public class Device : BaseEntity
    {
        [Display(Name = "名称")]
        public string Name { get; set; }

        [Display(Name = "编号")]
        [Required(ErrorMessage = nameof(RequiredAttribute))]
        public string Number { get; set; }

        [Display(Name = "网关编号")]
        public string Gateway { get; set; }

        [Display(Name = "显示名称")]
        [Required(ErrorMessage = nameof(RequiredAttribute))]
        public string DisplayName { get; set; }

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

        [Display(Name = "在线状态")]
        public bool IsOnline { get; set; }

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

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

        [Display(Name = "用户名")]
        public string UserName { get; set; }

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

        [Display(Name = "连接Id")]
        public string ConnectId { get; set; }

        [Display(Name = "序号")]
        public int DisplayOrder { get; set; }

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

        [Display(Name = "产品Id")]
        [Required(ErrorMessage = nameof(RequiredAttribute))]
        public Guid ProductId { get; set; }

        [Display(Name = "节点Id")]
        [Required(ErrorMessage = nameof(RequiredAttribute))]
        public Guid NodeId { get; set; }

        [Display(Name = "产品")]
        public Product Product { get; set; }

        [Display(Name = "节点")]
        public Node Node { get; set; }

        [Display(Name = "数据")]
        public List<Data> Data { get; set; } = new List<Data>();

        [Display(Name = "命令")]
        public List<Command> Commands { get; set; } = new List<Command>();

        public Data GetData(string key)
        {
            return this.Data.FirstOrDefault(o => o.Key == key);
        }

        public string GetDataValue(string key)
        {
            return this.GetData(key)?.Value;
        }

        public Data CreateData(string key, object value, DeviceDataType type, string name, string unit = null, string description = null, bool hidden = false, long timestamp = 0)
        {
            return new Data
            {
                DeviceId = this.Id,
                Key = key,
                Value = Convert.ToString(value),
                Type = type,
                Name = name,
                Unit = unit,
                Description = description,
                Hidden = hidden,
                Timestamp = timestamp == 0 ? DateTimeOffset.Now.ToUnixTimeMilliseconds() : timestamp
            };
        }

        public Data AddorUpdateData(Data data)
        {
            var oldData = this.Data.FirstOrDefault(o => o.Key == data.Key);
            if (oldData == null)
            {
                oldData = data;
                this.Data.Add(data);
            }
            else
            {
                if (oldData.Name != data.Name || oldData.Value != data.Value || oldData.Unit != data.Unit || oldData.Description != data.Description)
                {
                    oldData.Name = data.Name;
                    oldData.Value = data.Value;
                    oldData.Unit = data.Unit;
                    oldData.Description = data.Description;
                    oldData.Timestamp = data.Timestamp;
                }
            }
            return oldData;
        }
    }
}