public async Task Subscribe_Lots_In_Single_Request()
{
using (var testEnvironment = new TestEnvironment(TestContext))
{
var receivedMessagesCount = 0;
await testEnvironment.StartServer();
var c1 = await testEnvironment.ConnectClient();
c1.UseApplicationMessageReceivedHandler(c => Interlocked.Increment(ref receivedMessagesCount));
var optionsBuilder = new MqttClientSubscribeOptionsBuilder();
for (var i = 0; i < 500; i++)
{
optionsBuilder.WithTopicFilter(i.ToString(), MqttQualityOfServiceLevel.AtMostOnce);
}
await c1.SubscribeAsync(optionsBuilder.Build()).ConfigureAwait(false);
var c2 = await testEnvironment.ConnectClient();
var messageBuilder = new MqttApplicationMessageBuilder();
for (var i = 0; i < 500; i++)
{
messageBuilder.WithTopic(i.ToString());
await c2.PublishAsync(messageBuilder.Build()).ConfigureAwait(false);
}
SpinWait.SpinUntil(() => receivedMessagesCount == 500, TimeSpan.FromSeconds(20));
Assert.AreEqual(500, receivedMessagesCount);
}
}
public async Task <Dictionary <string, Qos> > SubscribeAsync(Dictionary <string, Qos> subscriptions, CancellationToken cancellationToken)
{
var builder = new MqttClientSubscribeOptionsBuilder();
foreach (var entry in subscriptions)
{
builder.WithTopicFilter(entry.Key, MapQos(entry.Value));
}
try
{
var subscribeResult = await client.SubscribeAsync(builder.Build(), cancellationToken);
var gainedQoses = new Dictionary <string, Qos>();
foreach (var item in subscribeResult.Items)
{
var gained = (int)item.ResultCode;
if (gained < 0 || gained > 2)
{
throw new MqttException(message: $"Subscribe [topiic={item.TopicFilter.Topic}, qos={item.TopicFilter.QualityOfServiceLevel} failed: [resultCode={item.ResultCode}].");
}
gainedQoses[item.TopicFilter.Topic] = (Qos)gained;
}
return(gainedQoses);
}
catch (Exception e)
{
throw new MqttException(cause: e);
}
}
public MQTTClient()
{
var mqttClient = new MqttFactory().CreateMqttClient();
var optionBuilder = new MqttClientOptionsBuilder();
optionBuilder
.WithClientId("c001")
.WithTcpServer(opts =>
{
opts.Server = "127.0.0.1";
opts.Port = 108;
})
.WithCredentials("u001", "p001")
.WithCleanSession(true);
var options = optionBuilder.Build();
mqttClient.ConnectAsync(options, CancellationToken.None).Wait();
var recieveHander = new MsgRecieveHandler();
mqttClient.ApplicationMessageReceivedHandler = recieveHander;
var topicBuilder = new TopicFilterBuilder();
topicBuilder.WithTopic("家/客厅/空调/#")
.WithAtMostOnceQoS();
var topicHome = topicBuilder.Build();
var subscribOptionBuilder = new MqttClientSubscribeOptionsBuilder();
subscribOptionBuilder.WithTopicFilter(topicHome);
var subOpt = subscribOptionBuilder.Build();
mqttClient.SubscribeAsync(subOpt, CancellationToken.None).Wait();
var appMsg = new MqttApplicationMessage();
appMsg.Topic = "家/客厅/空调/开关";
appMsg.Payload = Encoding.UTF8.GetBytes("我来了~");
appMsg.QualityOfServiceLevel = MqttQualityOfServiceLevel.AtMostOnce;
appMsg.Retain = false;
mqttClient.PublishAsync(appMsg, CancellationToken.None).Wait();
//var appMsg = new MqttApplicationMessage("家/客厅/空调/开关",
// Encoding.UTF8.GetBytes("消息内容"),
// MqttQualityOfServiceLevel.AtMostOnce, false);
}
public async Task Subscribe_Lots_In_Single_Request()
{
using (var testEnvironment = CreateTestEnvironment())
{
var receivedMessagesCount = 0;
await testEnvironment.StartServer();
var c1 = await testEnvironment.ConnectClient();
c1.ApplicationMessageReceivedAsync += e =>
{
Interlocked.Increment(ref receivedMessagesCount);
return(PlatformAbstractionLayer.CompletedTask);
};
var optionsBuilder = new MqttClientSubscribeOptionsBuilder();
for (var i = 0; i < 500; i++)
{
optionsBuilder.WithTopicFilter(i.ToString());
}
await c1.SubscribeAsync(optionsBuilder.Build()).ConfigureAwait(false);
var c2 = await testEnvironment.ConnectClient();
var messageBuilder = new MqttApplicationMessageBuilder();
for (var i = 0; i < 500; i++)
{
messageBuilder.WithTopic(i.ToString());
await c2.PublishAsync(messageBuilder.Build()).ConfigureAwait(false);
}
SpinWait.SpinUntil(() => receivedMessagesCount == 500, TimeSpan.FromSeconds(20));
Assert.AreEqual(500, receivedMessagesCount);
}
}
