RabbitMQHandleBackgroundService.cs
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using HHECS.BllModel;
using HHECS.DAQShared.Models;
using RabbitMQ.Client;
using System.Text.Json;
namespace HHECS.DAQServer.Services
{
/// <summary>
/// RabbitMQ存储线程
/// </summary>
public class RabbitMQHandleBackgroundService : BackgroundService
{
private readonly IFreeSql _freeSql;
private readonly DataCacheService _dataCacheService;
private readonly ILogger<RabbitMQHandleBackgroundService> _logger;
private readonly int _limit = 1000;
private DateTime _lastReloadTime = DateTime.MinValue;
private List<EquipmentExtend> _equipments = new List<EquipmentExtend>();
private List<EquipmentTypeExtend> _equipmentTypes = new List<EquipmentTypeExtend>();
private readonly bool _isProductionEnvironment;
/// <summary>
/// 数据刷新时间 间隔
/// </summary>
private readonly TimeSpan _reloadTimeSpan = TimeSpan.FromMinutes(1);
public RabbitMQHandleBackgroundService(IFreeSql freeSql, DataCacheService dataCacheService, IConfiguration configuration, ILogger<RabbitMQHandleBackgroundService> logger)
{
_freeSql = freeSql;
_dataCacheService = dataCacheService;
_logger = logger;
_isProductionEnvironment = configuration.GetValue<bool>("IsProductionEnvironment");
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
//失败缓存数据
var equipmentDataRecordTemps = new List<EquipmentDataRecord>();
var factory = new ConnectionFactory()
{
HostName = "172.16.29.90",
UserName = "producer",
Password = "Aa123456",
VirtualHost = "hhecs.daq"
};
while (!stoppingToken.IsCancellationRequested)
{
try
{
if (_dataCacheService.EquipmentDataRecordQueue.IsEmpty)
{
await Task.Delay(1000, stoppingToken);
continue;
}
//每分钟刷新一次
if ((DateTime.Now - _lastReloadTime) > _reloadTimeSpan)
{
var result = ReloadData();
if (!result.Success)
{
_logger.LogError($"[{nameof(RabbitMQHandleBackgroundService)}]线程，数据刷新失败：{result.Msg}");
}
_lastReloadTime = DateTime.Now;
}
if (_equipments.Count == 0 || _equipmentTypes.Count == 0)
{
await Task.Delay(1000, stoppingToken);
continue;
}
//存在数据，需要先处理
if (equipmentDataRecordTemps.Count > 0)
{
//异常情况，待完善
}
using var connection = factory.CreateConnection();
var total = 0;
do
{
//队列为空，结束循环
if (_dataCacheService.EquipmentDataRecordQueue.IsEmpty)
{
break;
}
_dataCacheService.EquipmentDataRecordQueue.TryDequeue(out var data);
if (data != null)
{
var equipmentTypeId = _equipments.Where(x => x.Code == data.EquipmentCode).Select(x => x.EquipmentTypeId).FirstOrDefault();
if (equipmentTypeId == default)
{
continue;
}
var equipmentTypeCode = _equipmentTypes.Where(x => x.Id == equipmentTypeId).Select(x => x.Code).FirstOrDefault();
if (string.IsNullOrWhiteSpace(equipmentTypeCode))
{
continue;
}
using var channel = connection.CreateModel();
var exchangeName = string.Empty;
if (!_isProductionEnvironment)
{
exchangeName = $"daq.development.{equipmentTypeCode}";
}
else
{
exchangeName = $"daq.production.{equipmentTypeCode}";
}
channel.ExchangeDeclare(exchangeName, ExchangeType.Topic, true);
// 数据
var body = JsonSerializer.SerializeToUtf8Bytes(data);
var properties = channel.CreateBasicProperties();
properties.Persistent = true;
properties.DeliveryMode = 2;
channel.BasicPublish(exchangeName, $"{equipmentTypeCode}.{data.EquipmentCode}", properties, body);
total++;
}
} while (DateTime.Now - _lastReloadTime < _reloadTimeSpan);
if (total > 0)
{
_logger.LogInformation($"成功写入{total}条数据");
}
}
catch (Exception ex)
{
_logger.LogError($"[{nameof(RabbitMQHandleBackgroundService)}]线程异常：{ex.Message}");
}
}
}
/// <summary>
/// 刷新数据
/// </summary>
private BllResult ReloadData()
{
try
{
_equipments = _freeSql.Queryable<EquipmentExtend>().ToList(x => new EquipmentExtend
{
Id = x.Id,
Code = x.Code,
Name = x.Name,
EquipmentTypeId = x.EquipmentTypeId,
});
_equipmentTypes = _freeSql.Queryable<EquipmentTypeExtend>().ToList(x => new EquipmentTypeExtend
{
Id = x.Id,
Code = x.Code,
Name = x.Name,
});
return BllResultFactory.Success();
}
catch (Exception ex)
{
return BllResultFactory.Error(ex.Message);
}
}
}
}