public override async Task OnMqttDataChanged(EnumQueueMode mode, BoxMqttApplicationMessage applicationMessage)
{
try
{
// 如果是删除的触发事件,则不需处理
if (mode == EnumQueueMode.Dequeue)
{
return;
}
// 将获取到的数据进行转换为监听数据,然后推送到kafka
var messageStr = Encoding.UTF8.GetString(applicationMessage.Payload);
var monitorData = JsonSerializer.Deserialize <FBoxMonitorDataDto>(messageStr);
var dmonDataConsumerOutputs = monitorData.FBoxMonitorDataInfos.Select(data =>
new KafkaMonitorDataOutput
{
State = data.Value == null || string.IsNullOrWhiteSpace(data.Value.ToString()) ? 1 : 0,
DmonName = data.Name,
Value = data.Value,
TimeStamp = monitorData.Time,
BoxBo = applicationMessage.BoxNo,
MqttName = MqttServerType.FBoxMqtt
}).ToArray();
await _kafkaProducerManager.PushDataAsync(_kafkaSetting.MonitorDataTopic, applicationMessage.BoxNo,
dmonDataConsumerOutputs);
// 去除当前消费掉的元素
_messageQueueManager.Dequeue(applicationMessage.TopicName);
}
catch (Exception e)
{
_logger.LogError(e.Message);
}
}
public async Task BoxStateSubscriptionAsync(KafkaBoxStateInput input)
{
Console.WriteLine("这是FBoxMqttService的BoxStateSubscriptionAsync方法:" + JsonSerializer.Serialize(input));
// 如果当前盒子已经推送过一次,那么就不在需要进行访问API
if (_boxStateBoxNoCache.ContainsKey(input.BoxNo))
{
return;
}
// 盒子状态第一次调用此方法时需要立即进行返回此盒子状态,所以需要请求api进行获取当前盒子状态,然后返回
try
{
// 获取盒子状态,然后推送kafka
var isConnected = await _boxStateHttpClient.IsConnectedAsync(input.BoxNo);
await _kafkaProducerManager.PushDataAsync(_kafkaSetting.BoxStateTopic,
input.BoxNo,
new KafkaBoxStateOutput
{
MqttName = input.MqttName,
// 在线为1,离线为3
BoxState = isConnected ? 1 : 3,
BoxNo = input.BoxNo
});
}
catch (UnauthorizedAccessException e)
{
Console.WriteLine(e.Message);
_logger.LogError(e.Message);
}
// 然后再进行向mqtt进行发送订阅盒子状态消息
// 获取当前mqtt实例
var mqttManager = _mqttManagerFunc(input.MqttName);
var connectedTopic = _mqttSetting.BoxConnectedTopicPrefix + input.BoxNo + "/" +
_mqttSetting.BoxConnectedTopic;
var disConnectedTopic = _mqttSetting.BoxConnectedTopicPrefix + input.BoxNo + "/" +
_mqttSetting.BoxDisConnectedTopic;
await mqttManager.SubscribeAsync(connectedTopic, disConnectedTopic);
// 缓存当前数据
_boxStateBoxNoCache.TryAdd(input.BoxNo, input.Action);
await File.WriteAllTextAsync($"./Cache/{nameof(FBoxMqttService)}.{nameof(_boxStateBoxNoCache)}.txt",
JsonSerializer.Serialize(_boxStateBoxNoCache));
}
