public async Task InvokeAsync(RemoteInvokeContext context, CancellationToken cancellationToken)
{
var mqttContext = context as MqttRemoteInvokeContext;
if (mqttContext != null)
{
var invokeMessage = context.InvokeMessage;
var host = NetUtils.GetHostAddress();
var addresses = await _mqttBrokerEntryManger.GetMqttBrokerAddress(mqttContext.topic);
addresses = addresses.Except(new AddressModel[] { host });
foreach (var address in addresses)
{
try
{
var endPoint = address.CreateEndPoint();
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug($"使用地址：'{endPoint}'进行调用。");
}
var client = _transportClientFactory.CreateClient(endPoint);
await client.SendAsync(invokeMessage).WithCancellation(cancellationToken);
}
catch (CommunicationException)
{
await _healthCheckService.MarkFailure(address);
}
catch (Exception exception)
{
_logger.LogError(exception, $"发起请求中发生了错误，服务Id：{invokeMessage.ServiceId}。");
}
}
}
}
/// <summary>
/// Registers the MQTT broker.
/// </summary>
/// <param name="topic">The topic.</param>
protected async Task RegisterMqttBroker(string topic)
{
var addresses = await _mqttBrokerEntryManger.GetMqttBrokerAddress(topic);
var host = NetUtils.GetHostAddress();
if (addresses == null || !addresses.Any(p => p.ToString() == host.ToString()))
{
await _mqttBrokerEntryManger.Register(topic, host);
}
}