EquipmentController.cs
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using HHECS.BllModel;
using HHECS.DAQServer.DataAccess;
using HHECS.DAQServer.Dto.Equipment;
using HHECS.DAQServer.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Distributed;
using System.Text;
using System.Text.Json;
namespace HHECS.DAQServer.Controllers
{
/// <summary>
/// 设备数据
/// </summary>
[Route("api/[controller]/[action]")]
[ApiController]
public class EquipmentController : ControllerBase
{
private readonly DataContext _context;
private readonly IDistributedCache _cache;
public EquipmentController(DataContext dataContext, IDistributedCache cache)
{
_context = dataContext;
_cache = cache;
}
/// <summary>
/// 推送设备实时数据
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
[HttpPost]
public async Task<BllResult> SendEquipmentData(IEnumerable<EquipmentDataDto> data)
{
try
{
if (!data.Any())
{
return BllResultFactory.Error($"数据不能为空！");
}
var records = data.Select(x => new EquipmentDataRecord
{
Plmeid = x.Plmeid,
EquipmentCode = x.EquipmentSN,
Tags = JsonSerializer.Serialize(x.Reported),
IsHandle = false,
Version = x.Version,
CreateTime = DateTime.Now,
Timestamp = x.Timestamp,
}).ToList();
await _context.EquipmentDataRecord.AddRangeAsync(records);
await _context.SaveChangesAsync();
//缓存配置
var options = new DistributedCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(10));
foreach (var record in data.GroupBy(x => x.EquipmentSN))
{
//获取最新时间戳的数据
var lastItem = record.OrderByDescending(x => x.Timestamp).First();
//获取当前缓存数据
var cacheDataBytes = await _cache.GetAsync(record.Key);
if (cacheDataBytes != null)
{
var cacheData = JsonSerializer.Deserialize<EquipmentDataDto>(Encoding.Default.GetString(cacheDataBytes));
if (cacheData.Timestamp >= lastItem.Timestamp)
{
continue;
}
}
var encodedCurrentData = JsonSerializer.SerializeToUtf8Bytes(lastItem);
await _cache.SetAsync(record.Key, encodedCurrentData, options);
}
return BllResultFactory.Success();
}
catch (Exception ex)
{
return BllResultFactory.Error(ex.Message);
}
}
/// <summary>
/// 更新设备在线状态
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
[HttpPost]
public async Task<BllResult> UpdateClientStatus(ClientStatusDto data)
{
try
{
var client = await _context.ClientStatus.Where(x => x.ClientKeys == data.ClientId).FirstAsync();
if (client == null)
{
return BllResultFactory.Error($"客户端标识：{data.ClientId}不存在，请查验后再试！");
}
_context.ClientStatus.Attach(client);
client.LastSeenDate = DateTime.Now;
await _context.ClientStatus.UpdateAsync(client);
await _context.SaveChangesAsync();
return BllResultFactory.Success();
}
catch (Exception ex)
{
return BllResultFactory.Error(ex.Message);
}
}
}
}