private async Task <IMqttClient> CreateMqttClient(MqttAddress addr)
{
var ClientOptions = new MqttClientOptions
{
ClientId = addr.ClientId,
ChannelOptions = new MqttClientTcpOptions
{
Server = addr.BindAddress,
Port = addr.Port,
}
};
var mqttClient = new MqttFactory().CreateMqttClient();
mqttClient.DisconnectedHandler = new MqttClientDisconnectedHandlerDelegate(async e =>
{
//Console.WriteLine("### DISCONNECTED FROM SERVER ###");
await Task.Delay(TimeSpan.FromSeconds(1));
try
{
await mqttClient.ConnectAsync(ClientOptions);
}
catch
{
Console.WriteLine("### RECONNECTING FAILED ###");
}
});
bool IsSuccess = false;
for (int i = 0; i < 3; i++)
{
try
{
await mqttClient.ConnectAsync(ClientOptions);
IsSuccess = true;
break;
}
catch (Exception ex)
{
logger.LogError(ex, $"#### MQTT BROKER CONNECTING FAILED ###");
Thread.Sleep(TimeSpan.FromSeconds(30));
continue;
}
}
if (IsSuccess == false)
{
logger.LogError("#### 브로커 접속에 실패했습니다. 다시 실행해주세요. ####");
return(null);
}
return(mqttClient);
}
public async Task MqttServer_HandleCleanDisconnect()
{
var serverAdapter = new MqttTcpServerAdapter(new MqttNetLogger().CreateChildLogger());
var s = new MqttFactory().CreateMqttServer(new[] { serverAdapter }, new MqttNetLogger());
var clientConnectedCalled = 0;
var clientDisconnectedCalled = 0;
s.ClientConnected += (_, __) => clientConnectedCalled++;
s.ClientDisconnected += (_, __) => clientDisconnectedCalled++;
var clientOptions = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.Build();
await s.StartAsync(new MqttServerOptions());
var c1 = new MqttFactory().CreateMqttClient();
await c1.ConnectAsync(clientOptions);
await Task.Delay(100);
await c1.DisconnectAsync();
await Task.Delay(100);
await s.StopAsync();
await Task.Delay(100);
Assert.AreEqual(clientConnectedCalled, clientDisconnectedCalled);
}
public async Task MqttServer_SessionTakeover()
{
var server = new MqttFactory().CreateMqttServer();
try
{
await server.StartAsync(new MqttServerOptions());
var client1 = new MqttFactory().CreateMqttClient();
var client2 = new MqttFactory().CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.WithCleanSession(false)
.WithClientId("a").Build();
await client1.ConnectAsync(options);
await Task.Delay(500);
await client2.ConnectAsync(options);
await Task.Delay(500);
Assert.IsFalse(client1.IsConnected);
Assert.IsTrue(client2.IsConnected);
}
finally
{
await server.StopAsync();
}
}
public async Task <IMqttClient> Connect()
{
var options = ReadConfiguration();
var client = new MqttFactory().CreateMqttClient();
try
{
await client.ConnectAsync(options, CancellationToken.None);
}
catch
{
var json = Helpers.MqttConfigJson;
var config = JsonConvert.DeserializeObject <Config>(json);
var stringBuilder = new StringBuilder();
stringBuilder.Append("Clinet could not connect to bridge\n");
stringBuilder.Append("MQTT Configuration Options:\n");
stringBuilder.Append($"Bridge: {config.BridgeUrl}:{config.BridgePort}\n");
stringBuilder.Append($"Username: {config.BridgeUser.UserName}\n");
stringBuilder.Append($"ClientId: {config.BridgeUser.ClientId}");
throw new MqttConfigurationException(stringBuilder.ToString());
}
return(client);
}
private static async Task MainAsync()
{
Console.Title = "Listener";
var mqttClient = new MqttFactory().CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithClientId("Console_App_Listener")
.WithTcpServer("{Ip Address}", 1883)
.Build();
await mqttClient.ConnectAsync(options);
Console.Write("Subscribe To Topic: ");
string topic = Console.ReadLine();
await mqttClient.SubscribeAsync(topic, MqttQualityOfServiceLevel.AtLeastOnce);
mqttClient.UseApplicationMessageReceivedHandler(e =>
{
Console.WriteLine("### RECEIVED APPLICATION MESSAGE ###");
Console.WriteLine($"+ Topic = {e.ApplicationMessage.Topic}");
Console.WriteLine($"+ Payload = {Encoding.UTF8.GetString(e.ApplicationMessage.Payload)}");
Console.WriteLine($"+ QoS = {e.ApplicationMessage.QualityOfServiceLevel}");
Console.WriteLine($"+ Retain = {e.ApplicationMessage.Retain}");
Console.WriteLine();
});
Console.ReadLine();
}
public async Task MqttServer_ShutdownDisconnectsClientsGracefully()
{
var serverAdapter = new MqttTcpServerAdapter(new MqttNetLogger().CreateChildLogger());
var s = new MqttFactory().CreateMqttServer(new[] { serverAdapter }, new MqttNetLogger());
var clientOptions = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.Build();
var disconnectCalled = 0;
await s.StartAsync(new MqttServerOptions());
var c1 = new MqttFactory().CreateMqttClient();
c1.Disconnected += (sender, args) => disconnectCalled++;
await c1.ConnectAsync(clientOptions);
await Task.Delay(100);
await s.StopAsync();
await Task.Delay(100);
Assert.AreEqual(1, disconnectCalled);
}
static async Task Main(string[] args)
{
//Sending properties
var topic = "andy840119/iot";
var quality = MqttQualityOfServiceLevel.AtLeastOnce;
//Run a MQTT publish client
var publishClient = new MqttFactory().CreateMqttClient();
await publishClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer(ServerAddress).Build());
while (true)
{
Console.WriteLine("Type any message to send message from publisher to subscripter...");
string line = Console.ReadLine();
Console.WriteLine("Message sent : " + line);
await publishClient.PublishAsync(new MqttApplicationMessage()
{
Topic = topic,
QualityOfServiceLevel = quality,
Payload = Encoding.UTF8.GetBytes(line),
});
await Task.Delay(500);
}
}
public static async Task <IMqttClient> ConnectAsync(string clientId)
{
Console.WriteLine("In ConnectAsync");
var client = new MqttFactory().CreateMqttClient();
X509Certificate ca_crt = new X509Certificate("certs/ca.crt");
var tlsOptions = new MqttClientOptionsBuilderTlsParameters();
tlsOptions.SslProtocol = System.Security.Authentication.SslProtocols.Tls11;
tlsOptions.Certificates = new List <IEnumerable <byte> >()
{
ca_crt.Export(X509ContentType.Cert).Cast <byte>()
};
tlsOptions.UseTls = true;
tlsOptions.AllowUntrustedCertificates = true;
tlsOptions.IgnoreCertificateChainErrors = false;
tlsOptions.IgnoreCertificateRevocationErrors = false;
Console.WriteLine("MQTT_BROKER_ADDRESS: {0}", MQTT_BROKER_ADDRESS);
Console.WriteLine("MQTT_BROKER_PORT: {0}", MQTT_BROKER_PORT);
// TLS support on port 4321 (8883 already in use with Azure IoT Edge)
var options = new MqttClientOptionsBuilder()
.WithClientId(clientId)
.WithTcpServer(MQTT_BROKER_ADDRESS, MQTT_BROKER_PORT)
.WithTls(tlsOptions)
.Build();
await client.ConnectAsync(options);
return(client);
}
public static async Task <IMqttClient> StartClient(BaseMessageHandler handler)
{
var client = new MqttFactory().CreateMqttClient();
client.UseApplicationMessageReceivedHandler(e =>
{
var Payload = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
if (Payload.IndexOf('|') != -1)
{
var Channel = e.ApplicationMessage.Topic;
var Type = Payload.Split("|")[0];
var Context = Payload.Substring(Type.Length + 1);
GeneratedMessage.Dispatch(handler, Channel, Type, Context);
}
});
var clientOptions = new MqttClientOptionsBuilder()
.WithClientId("ClientID")
.WithTcpServer("127.0.0.1")
.WithCleanSession()
.Build();
await client.ConnectAsync(clientOptions);
foreach (var channel in GeneratedMessage.channels)
{
await client.SubscribeAsync(new TopicFilterBuilder().WithTopic(channel).Build());
}
return(client);
}
public async Task <bool> PublishLockCommand(Guid moduleId, bool isLocked)
{
var dlm = await _repository.GetDLMByGuid(moduleId);
if (dlm == null)
{
return(false);
}
dlm.IsLocked = isLocked;
await _repository.Commit();
var mqttOptions = new MqttClientOptionsBuilder()
.WithClientId("LiveboltServer")
.WithTcpServer("localhost")
.WithCredentials("livebolt", "livebolt")
.Build();
var mqttClient = new MqttFactory().CreateMqttClient();
await mqttClient.ConnectAsync(mqttOptions);
var message = new MqttApplicationMessageBuilder()
.WithTopic($"dlm/lock/{moduleId}")
.WithPayload((isLocked ? 1 : 0).ToString())
.WithExactlyOnceQoS()
.Build();
await mqttClient.PublishAsync(message);
await mqttClient.DisconnectAsync();
return(true);
}
public async Task Post(DataValue value)
{
var options = new MqttClientOptionsBuilder()
.WithClientId(ClientId)
.WithTcpServer("106.14.142.74", 1883)
.WithCredentials("admin", "123456")
.WithCleanSession()
.Build();
var mqttclient = new MqttFactory().CreateMqttClient();
if (null == mqttclient)
{
throw new Exception("mqttclient有点问题");
}
await mqttclient.ConnectAsync(options);
var sendTopic = $"topic/narojay";
var sendMsg = JsonConvert.SerializeObject(value);
var msg = new MqttApplicationMessageBuilder().WithTopic(sendTopic).WithPayload(sendMsg)
.WithQualityOfServiceLevel(MQTTnet.Protocol.MqttQualityOfServiceLevel.AtLeastOnce).WithRetainFlag(false)
.Build();
for (var i = 0; i < 1000; i++)
{
mqttclient.PublishAsync(msg);
}
}
public async Task MqttServer_StopAndRestart()
{
var server = new MqttFactory().CreateMqttServer();
await server.StartAsync(new MqttServerOptions());
var client = new MqttFactory().CreateMqttClient();
await client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("localhost").Build());
await server.StopAsync();
try
{
var client2 = new MqttFactory().CreateMqttClient();
await client2.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("localhost").Build());
Assert.Fail("Connecting should fail.");
}
catch (Exception)
{
}
await server.StartAsync(new MqttServerOptions());
var client3 = new MqttFactory().CreateMqttClient();
await client3.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("localhost").Build());
await server.StopAsync();
}
public async Task Publish_With_Properties()
{
var server = new MqttFactory().CreateMqttServer();
var client = new MqttFactory().CreateMqttClient();
try
{
await server.StartAsync(new MqttServerOptions());
var applicationMessage = new MqttApplicationMessageBuilder()
.WithTopic("Hello")
.WithPayload("World")
.WithAtMostOnceQoS()
.WithUserProperty("x", "1")
.WithUserProperty("y", "2")
.WithResponseTopic("response")
.WithContentType("text")
.WithMessageExpiryInterval(50)
.WithCorrelationData(new byte[12])
.WithTopicAlias(2)
.Build();
await client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1").WithProtocolVersion(MqttProtocolVersion.V500).Build());
var result = await client.PublishAsync(applicationMessage);
await client.DisconnectAsync();
Assert.AreEqual(MqttClientPublishReasonCode.Success, result.ReasonCode);
}
finally
{
await server.StopAsync();
}
}
/// <summary>
/// Initialize MQTT
/// </summary>
/// <returns></returns>
private async Task InitialMQTTServer()
{
//Sending properties
var topic = "andy840119/iot";
var quality = MqttQualityOfServiceLevel.AtLeastOnce;
//Run a MQTT Server
var server = new MqttFactory().CreateMqttServer();
await server.StartAsync(new MqttServerOptions());
//Run a MQTT receive client
var receniveClient = new MqttFactory().CreateMqttClient();
await receniveClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer(ServerAddress).Build());
receniveClient.ApplicationMessageReceived += (object o, MqttApplicationMessageReceivedEventArgs e) =>
{
//Record received message.
var receiveBytes = e.ApplicationMessage.Payload;
var receiveMessage = Encoding.UTF8.GetString(receiveBytes);
Console.WriteLine("Message received :");
Console.WriteLine(receiveMessage);
var result = Task.Run(
async() =>
{
await SendMessageToEveryConnectUser(receiveMessage, default(CancellationToken));
});
result.Wait();
};
//Receive client subscribe a topic
await receniveClient.SubscribeAsync(new TopicFilterBuilder().WithTopic(topic).WithQualityOfServiceLevel(quality).Build());
}
public async Task Connect_To_Wrong_Host()
{
var client = new MqttFactory().CreateLowLevelMqttClient();
var options = new MqttClientOptionsBuilder().WithTcpServer("123.456.789.10").Build();
await client.ConnectAsync(options, CancellationToken.None).ConfigureAwait(false);
}
public static async void MqttclientConnect()
{
try
{
var clientoptions = new MqttClientOptions();
clientoptions.ChannelOptions = new MqttClientTcpOptions()
{
Server = "192.168.137.1",
Port = 1883
};
clientoptions.Credentials = new MqttClientCredentials()
{
Username = "******",
Password = "******"
};
clientoptions.CleanSession = true;
clientoptions.KeepAlivePeriod = TimeSpan.FromSeconds(100.0);
clientoptions.KeepAliveSendInterval = TimeSpan.FromSeconds(20000);
var mqttclient = new MqttFactory().CreateMqttClient();
await mqttclient.ConnectAsync(clientoptions);
}
catch (Exception)
{
throw;
}
}
public async Task Connect_To_Not_Existing_Broker()
{
var client = new MqttFactory().CreateLowLevelMqttClient();
var options = new MqttClientOptionsBuilder().WithTcpServer("localhost").Build();
await client.ConnectAsync(options, CancellationToken.None).ConfigureAwait(false);
}
public async Task Unsubscribe()
{
var server = new MqttFactory().CreateMqttServer();
var client = new MqttFactory().CreateMqttClient();
try
{
await server.StartAsync(new MqttServerOptions());
await client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1").WithProtocolVersion(MqttProtocolVersion.V500).Build());
await client.SubscribeAsync("a");
var result = await client.UnsubscribeAsync("a");
await client.DisconnectAsync();
Assert.AreEqual(1, result.Items.Count);
Assert.AreEqual(MqttClientUnsubscribeResultCode.Success, result.Items[0].ReasonCode);
}
finally
{
await server.StopAsync();
}
}
// This code is used at the Wiki on GitHub!
// ReSharper disable once UnusedMember.Local
private static async void WikiCode()
{
{
var client = new MqttFactory().CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithClientId("Client1")
.WithTcpServer("broker.hivemq.com")
.WithCredentials("bud", "%spencer%")
.WithTls()
.Build();
await client.ConnectAsync(options);
var message = new MqttApplicationMessageBuilder()
.WithTopic("MyTopic")
.WithPayload("Hello World")
.WithExactlyOnceQoS()
.WithRetainFlag()
.Build();
await client.PublishAsync(message);
}
{
var factory = new MqttFactory();
var client = factory.CreateMqttClient();
}
}
public async Task StartAsync(CancellationToken cancellationToken)
{
await _sync.WaitAsync(cancellationToken);
try
{
if (_client is null)
{
var client = new MqttFactory().CreateMqttClient();
client.ConnectedHandler = this;
client.DisconnectedHandler = this;
await client.ConnectAsync(_clientOptions, cancellationToken);
_client = client;
_logger.LogDebug("MQTT service started successfully.");
}
else
{
_logger.LogWarning("MQTT service is already running.");
}
}
finally
{
_sync.Release();
}
}
public async Task Subscribe()
{
var server = new MqttFactory().CreateMqttServer();
var client = new MqttFactory().CreateMqttClient();
try
{
await server.StartAsync(new MqttServerOptions());
await client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1").WithProtocolVersion(MqttProtocolVersion.V500).Build());
var result = await client.SubscribeAsync(new MqttClientSubscribeOptions()
{
SubscriptionIdentifier = 1,
TopicFilters = new List <TopicFilter>
{
new TopicFilter {
Topic = "a", QualityOfServiceLevel = MqttQualityOfServiceLevel.AtLeastOnce
}
}
});
await client.DisconnectAsync();
Assert.AreEqual(1, result.Items.Count);
Assert.AreEqual(MqttClientSubscribeResultCode.GrantedQoS1, result.Items[0].ResultCode);
}
finally
{
await server.StopAsync();
}
}
public static async Task StartAsync(AdminShellPackageEnv[] package, GrapevineLoggerSuper logger = null)
{
// Create TCP based options using the builder.
var options = new MqttClientOptionsBuilder()
.WithClientId("AASXPackageXplorer MQTT Client")
.WithTcpServer("localhost", 1883)
.Build();
//create MQTT Client and Connect using options above
IMqttClient mqttClient = new MqttFactory().CreateMqttClient();
await mqttClient.ConnectAsync(options);
int iAASEnv = 0;
for (iAASEnv = 0; iAASEnv < package.Length; iAASEnv++)
{
if (iAASEnv == lastAASEnv && package[iAASEnv] != null)
{
//publish AAS to AAS Topic
foreach (AdminShell.AdministrationShell aas in package[iAASEnv].AasEnv.AdministrationShells)
{
//publish submodels
int iSubmodel = 0;
foreach (var sm in package[iAASEnv].AasEnv.Submodels)
{
if (iSubmodel == lastSubmodel)
{
Console.WriteLine("Publish MQTT AAS " + aas.idShort + " Submodel_" + sm.idShort);
var message2 = new MqttApplicationMessageBuilder()
.WithTopic("Submodel_" + sm.idShort)
.WithPayload(Newtonsoft.Json.JsonConvert.SerializeObject(sm))
.WithExactlyOnceQoS()
.WithRetainFlag()
.Build();
await mqttClient.PublishAsync(message2);
lastSubmodel++;
iSubmodel = -1;
break;
}
iSubmodel++;
}
if (iSubmodel != -1)
{
lastSubmodel = 0;
lastAASEnv++;
}
break;
}
break;
}
}
if (package[lastAASEnv] == null)
{
lastAASEnv = 0;
}
}
public async Task MqttServer_Publish_MultipleClients()
{
var serverAdapter = new MqttTcpServerAdapter(new MqttNetLogger().CreateChildLogger());
var s = new MqttFactory().CreateMqttServer(new[] { serverAdapter }, new MqttNetLogger());
var receivedMessagesCount = 0;
var locked = new object();
var clientOptions = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.Build();
var clientOptions2 = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.Build();
try
{
await s.StartAsync(new MqttServerOptions());
var c1 = new MqttFactory().CreateMqttClient();
var c2 = new MqttFactory().CreateMqttClient();
await c1.ConnectAsync(clientOptions);
await c2.ConnectAsync(clientOptions2);
c1.ApplicationMessageReceived += (_, __) =>
{
lock (locked)
{
receivedMessagesCount++;
}
};
c2.ApplicationMessageReceived += (_, __) =>
{
lock (locked)
{
receivedMessagesCount++;
}
};
var message = new MqttApplicationMessageBuilder().WithTopic("a").WithAtLeastOnceQoS().Build();
await c1.SubscribeAsync(new TopicFilter("a", MqttQualityOfServiceLevel.AtLeastOnce));
await c2.SubscribeAsync(new TopicFilter("a", MqttQualityOfServiceLevel.AtLeastOnce));
//await Task.WhenAll(Publish(c1, message), Publish(c2, message));
await Publish(c1, message);
await Task.Delay(500);
}
finally
{
await s.StopAsync();
}
Assert.AreEqual(2000, receivedMessagesCount);
}
public static PythonDictionary publish_external(PythonDictionary parameters)
{
if (parameters is null)
{
throw new ArgumentNullException(nameof(parameters));
}
var server = Convert.ToString(parameters.get("server"));
var port = Convert.ToInt32(parameters.get("port", 1883));
var username = Convert.ToString(parameters.get("username"));
var password = Convert.ToString(parameters.get("password"));
var clientId = Convert.ToString(parameters.get("client_id", Guid.NewGuid().ToString("N")));
var topic = Convert.ToString(parameters.get("topic"));
var qos = Convert.ToInt32(parameters.get("qos", 0));
var retain = Convert.ToBoolean(parameters.get("retain", false));
var tls = Convert.ToBoolean(parameters.get("tls", false));
var timeout = Convert.ToInt32(parameters.get("timeout", 5000));
var payload = parameters.get("payload", null);
var mqttClient = new MqttFactory().CreateMqttClient();
try
{
var options = new MqttClientOptionsBuilder().WithTcpServer(server, port).WithCredentials(username, password).WithClientId(clientId)
.WithTimeout(TimeSpan.FromMilliseconds(timeout)).WithTls(new MqttClientOptionsBuilderTlsParameters
{
UseTls = tls
}).Build();
mqttClient.ConnectAsync(options).GetAwaiter().GetResult();
var message = new MqttApplicationMessageBuilder().WithTopic(topic).WithPayload(PythonConvert.ToPayload(payload))
.WithQualityOfServiceLevel((MqttQualityOfServiceLevel)qos).WithRetainFlag(retain).Build();
mqttClient.PublishAsync(message).GetAwaiter().GetResult();
return(new PythonDictionary
{
["type"] = "success"
});
}
catch (MqttConnectingFailedException)
{
return(new PythonDictionary
{
["type"] = "exception.connecting_failed"
});
}
catch (Exception exception)
{
return(PythonConvert.ToPythonDictionary(new ExceptionPythonModel(exception).ToDictionary()));
}
finally
{
mqttClient?.DisconnectAsync().GetAwaiter().GetResult();
mqttClient?.Dispose();
}
}
public async Task InitializeSubscriber(ClientConfiguration configuration)
{
var options = new MqttClientOptionsBuilder()
.WithClientId(configuration.ClientId)
.WithCleanSession(false)
.WithTcpServer(configuration.Host, configuration.Port)
.WithCredentials(configuration.Username, configuration.Password)
.WithKeepAlivePeriod(TimeSpan.FromMilliseconds(configuration.KeepAlivePeriod))
.WithCommunicationTimeout(TimeSpan.FromMilliseconds(configuration.CommunicationTimeout)).Build();
var mqttClient = new MqttFactory().CreateMqttClient();
string responsePayload = string.Empty;
mqttClient.UseApplicationMessageReceivedHandler(args =>
{
var payloadMqtt = args.ApplicationMessage.Payload;
var topic = args.ApplicationMessage.Topic;
var payload = Encoding.Default.GetString(payloadMqtt);
var message = JsonConvert.DeserializeObject <CommandDto>(payload);
Console.WriteLine($"Subscriber have received message from topic : {topic}");
if (topic.StartsWith("MQTTnet.RPC/"))
{
if (topic.EndsWith("/DoWork"))
{
Console.WriteLine($"Subscriber have done work with id : {message.Id}");
responsePayload = "Work done with success";
}
if (topic.EndsWith("/DoOtherWork"))
{
responsePayload = "Other Work done with success";
}
var messageMqtt = new MqttApplicationMessageBuilder()
.WithTopic(topic + "/response")
.WithPayload(responsePayload)
.WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce)
.WithRetainFlag(false)
.Build();
Task.Run(async() => await mqttClient.PublishAsync(messageMqtt));
}
});
var connectResult = await mqttClient.ConnectAsync(options);
Console.WriteLine($"Subscriber connection result : {connectResult.ResultCode}");
//await mqttClient.SubscribeAsync("#");
await mqttClient.SubscribeAsync("MQTTnet.RPC/+/DoWork");
await mqttClient.SubscribeAsync("MQTTnet.RPC/+/DoOtherWork");
}
public async Task Connect_To_Invalid_Server_Wrong_IP()
{
var client = new MqttFactory().CreateMqttClient();
using (var timeout = new CancellationTokenSource(TimeSpan.FromSeconds(2)))
{
await client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("1.2.3.4").Build(), timeout.Token);
}
}
public async Task MqttServer_SameClientIdConnectDisconnectEventOrder()
{
var s = new MqttFactory().CreateMqttServer();
var events = new List <string>();
s.ClientConnected += (_, __) =>
{
lock (events)
{
events.Add("c");
}
};
s.ClientDisconnected += (_, __) =>
{
lock (events)
{
events.Add("d");
}
};
var clientOptions = new MqttClientOptionsBuilder()
.WithTcpServer("localhost")
.WithClientId("same_id")
.Build();
await s.StartAsync(new MqttServerOptions());
var c1 = new MqttFactory().CreateMqttClient();
var c2 = new MqttFactory().CreateMqttClient();
await c1.ConnectAsync(clientOptions);
await Task.Delay(250);
await c2.ConnectAsync(clientOptions);
await Task.Delay(250);
await c1.DisconnectAsync();
await Task.Delay(250);
await c2.DisconnectAsync();
await Task.Delay(250);
await s.StopAsync();
var flow = string.Join(string.Empty, events);
Assert.AreEqual("cdcd", flow);
}
public async Task MqttServer_LotsOfRetainedMessages()
{
const int ClientCount = 100;
var server = new MqttFactory().CreateMqttServer();
try
{
await server.StartAsync(new MqttServerOptionsBuilder().Build());
Parallel.For(
0,
ClientCount,
new ParallelOptions {
MaxDegreeOfParallelism = 10
},
i =>
{
using (var client = new MqttFactory().CreateMqttClient())
{
client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("localhost").Build())
.GetAwaiter().GetResult();
for (var j = 0; j < 10; j++)
{
// Clear retained message.
client.PublishAsync(new MqttApplicationMessageBuilder().WithTopic("r" + i)
.WithPayload(new byte[0]).WithRetainFlag().Build()).GetAwaiter().GetResult();
// Set retained message.
client.PublishAsync(new MqttApplicationMessageBuilder().WithTopic("r" + i)
.WithPayload("value" + j).WithRetainFlag().Build()).GetAwaiter().GetResult();
}
client.DisconnectAsync().GetAwaiter().GetResult();
}
});
await Task.Delay(100);
var retainedMessages = server.GetRetainedMessages();
Assert.AreEqual(ClientCount, retainedMessages.Count);
for (var i = 0; i < ClientCount; i++)
{
Assert.IsTrue(retainedMessages.Any(m => m.Topic == "r" + i));
}
}
finally
{
await server.StopAsync();
}
}
public static void Main()
{
var currentPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
// ReSharper disable once AssignNullToNotNullAttribute
.WriteTo.File(Path.Combine(currentPath,
@"log\MqttBridge_.txt"), rollingInterval: RollingInterval.Day)
.WriteTo.Console()
.CreateLogger();
var config = ReadConfiguration(currentPath);
var optionsBuilder = new MqttServerOptionsBuilder()
.WithDefaultEndpoint().WithApplicationMessageInterceptor(
async c =>
{
IMqttClientOptions options;
if (config.UseSsl)
{
options = new MqttClientOptionsBuilder()
.WithClientId(config.BridgeUser.ClientId)
.WithTcpServer(config.BridgeUrl, config.BridgePort)
.WithCredentials(config.BridgeUser.UserName, config.BridgeUser.Password)
.WithTls()
.WithCleanSession()
.Build();
}
else
{
options = new MqttClientOptionsBuilder()
.WithClientId(config.BridgeUser.ClientId)
.WithTcpServer(config.BridgeUrl, config.BridgePort)
.WithCredentials(config.BridgeUser.UserName, config.BridgeUser.Password)
.WithCleanSession()
.Build();
}
var mqttClient = new MqttFactory().CreateMqttClient();
await mqttClient.ConnectAsync(options, CancellationToken.None);
await mqttClient.PublishAsync(c.ApplicationMessage, CancellationToken.None);
await mqttClient.DisconnectAsync(null, CancellationToken.None);
c.AcceptPublish = true;
LogMessage(c);
});
var mqttServer = new MqttFactory().CreateMqttServer();
mqttServer.StartAsync(optionsBuilder.Build());
Console.ReadLine();
}
/// <summary>
/// Sets up a connection to the MQTT server specified by <c>uid</c>, <c>host</c> and <c>port</c>.
/// Sets up a connection to the Hyker platform using <c>uid</c> and the settings in <c>config</c>.
/// Registers the UID if it does not already exist in the system.
/// </summary>
/// <exception cref="System.Exception">
/// Thrown when configuration file does not exist or contains badly formatted properties,
/// if the UID is already registered on another device,
/// or if the connection to the KDS cannot be established.
/// </exception>
/// <param name="uid">The unique identifier of the current device.</param>
/// <param name="password">The password for the private key of the current device.</param>
/// <param name="config">The dictionary containing the Riks settings, API keys, etc. to be used.</param>
public static async Task <RiksMQTTClient> Connect(string uid, string password, string host, int port, Dictionary <string, object> config)
{
var mqttClient = new MqttFactory().CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithClientId(uid)
.WithTcpServer(host, port)
.Build();
await mqttClient.ConnectAsync(options);
return(new RiksMQTTClient(mqttClient, uid, password, config));
}
