iot/projects/Application/Domain/Statistic.cs

using Infrastructure.Domain;
using System;
using System.ComponentModel.DataAnnotations;
using System.Globalization;

namespace Application.Domain.Entities
{
    [Display(Name = "数据统计")]
    [Scope(ScopeAttribute.PlatformAll | ScopeAttribute.OrganAll)]
    [Group("物联管控", "IoTCenter")]
    public class Statistic : BaseEntity
    {
        public string Key { get; set; }
        public string Value { get; set; }
        public int? IntValue { get; set; }
        public double? DoubleValue { get; set; }
        public DateTime? DateTimeValue { get; set; }
        public StatisticType Type { get; set; }
        public DateTime UpdateAt { get; set; }

        public void SetValue(object value)
        {
            this.UpdateAt = DateTime.UtcNow;
            if (this.Type == StatisticType.Int)
            {
                this.IntValue = Convert.ToInt32(value);
                this.Value = this.IntValue.ToString();
            }
            else if (this.Type == StatisticType.Double)
            {
                this.DoubleValue = Convert.ToDouble(value);
                this.Value = this.DoubleValue.Value.ToString("f2");
            }
            else if (this.Type == StatisticType.DateTime)
            {
                var timestamp = Convert.ToInt64(value, CultureInfo.InvariantCulture);
                this.DateTimeValue = DateTimeOffset.FromUnixTimeMilliseconds(timestamp).DateTime;
                this.Value = Convert.ToString(value);
            }
            else
            {
                this.Value = value.ToString();
            }
        }
    }
}