public MqttIotHubAdapter(Settings settings, DeviceClientFactoryFunc deviceClientFactory, ISessionStatePersistenceProvider sessionStateManager, IAuthenticationProvider authProvider, ITopicNameRouter topicNameRouter, IQos2StatePersistenceProvider qos2StateProvider) { Contract.Requires(settings != null); Contract.Requires(sessionStateManager != null); Contract.Requires(authProvider != null); Contract.Requires(topicNameRouter != null); if (qos2StateProvider != null) { this.maxSupportedQosToClient = QualityOfService.ExactlyOnce; this.qos2StateProvider = qos2StateProvider; } else { this.maxSupportedQosToClient = QualityOfService.AtLeastOnce; } this.settings = settings; this.deviceClientFactory = deviceClientFactory; this.sessionStateManager = sessionStateManager; this.authProvider = authProvider; this.topicNameRouter = topicNameRouter; this.publishProcessor = new PacketAsyncProcessor<PublishPacket>(this.PublishToServerAsync); this.publishProcessor.Completion.OnFault(ShutdownOnPublishToServerFaultAction); TimeSpan? ackTimeout = this.settings.DeviceReceiveAckCanTimeout ? this.settings.DeviceReceiveAckTimeout : (TimeSpan?)null; this.publishPubAckProcessor = new RequestAckPairProcessor<AckPendingMessageState, PublishPacket>(this.AcknowledgePublishAsync, this.RetransmitNextPublish, ackTimeout); this.publishPubAckProcessor.Completion.OnFault(ShutdownOnPubAckFaultAction); this.publishPubRecProcessor = new RequestAckPairProcessor<AckPendingMessageState, PublishPacket>(this.AcknowledgePublishReceiveAsync, this.RetransmitNextPublish, ackTimeout); this.publishPubRecProcessor.Completion.OnFault(ShutdownOnPubRecFaultAction); this.pubRelPubCompProcessor = new RequestAckPairProcessor<CompletionPendingMessageState, PubRelPacket>(this.AcknowledgePublishCompleteAsync, this.RetransmitNextPublishRelease, ackTimeout); this.pubRelPubCompProcessor.Completion.OnFault(ShutdownOnPubCompFaultAction); }
async Task EnsureServerInitializedAsync() { if (this.ServerAddress != null) { return; } int threadCount = Environment.ProcessorCount; var executorGroup = new MultithreadEventLoopGroup(threadCount); var bufAllocator = new PooledByteBufferAllocator(16 * 1024, 10 * 1024 * 1024 / threadCount); // reserve 10 MB for 64 KB buffers BlobSessionStatePersistenceProvider sessionStateProvider = await BlobSessionStatePersistenceProvider.CreateAsync( this.settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageConnectionString"), this.settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageContainerName")); TableQos2StatePersistenceProvider qos2StateProvider = await TableQos2StatePersistenceProvider.CreateAsync( this.settingsProvider.GetSetting("TableQos2StatePersistenceProvider.StorageConnectionString"), this.settingsProvider.GetSetting("TableQos2StatePersistenceProvider.StorageTableName")); var settings = new Settings(this.settingsProvider); var authProvider = new SasTokenAuthenticationProvider(); var topicNameRouter = new TopicNameRouter(); DeviceClientFactoryFunc deviceClientFactoryFactory = IotHubDeviceClient.PreparePoolFactory(settings.IotHubConnectionString + ";DeviceId=stub", "a", 1); ServerBootstrap server = new ServerBootstrap() .Group(executorGroup) .Channel <TcpServerSocketChannel>() .ChildOption(ChannelOption.Allocator, bufAllocator) .ChildOption(ChannelOption.AutoRead, false) .ChildHandler(new ActionChannelInitializer <IChannel>(ch => { ch.Pipeline.AddLast(TlsHandler.Server(this.tlsCertificate)); ch.Pipeline.AddLast( MqttEncoder.Instance, new MqttDecoder(true, 256 * 1024), new MqttIotHubAdapter( settings, deviceClientFactoryFactory, sessionStateProvider, authProvider, topicNameRouter, qos2StateProvider), new XUnitLoggingHandler(this.output)); })); IChannel serverChannel = await server.BindAsync(IPAddress.Any, this.ProtocolGatewayPort); this.ScheduleCleanup(async() => { await serverChannel.CloseAsync(); await executorGroup.ShutdownGracefullyAsync(); }); this.ServerAddress = IPAddress.Loopback; }
public static DeviceClientFactoryFunc PreparePoolFactory(string baseConnectionString, string poolId, int connectionPoolSize) { IotHubConnectionStringBuilder csb = IotHubConnectionStringBuilder.Create(baseConnectionString); string[] connectionIds = Enumerable.Range(1, connectionPoolSize).Select(index => poolId + index).ToArray(); int connectionIndex = 0; DeviceClientFactoryFunc deviceClientFactory = deviceCredentials => { if (++connectionIndex >= connectionPoolSize) { connectionIndex = 0; } //csb.GroupName = connectionIds[connectionIndex]; // todo: uncommment once explicit control over connection pooling is available csb.AuthenticationMethod = Util.DeriveAuthenticationMethod(csb.AuthenticationMethod, deviceCredentials); string connectionString = csb.ToString(); return(CreateFromConnectionStringAsync(connectionString)); }; return(deviceClientFactory); }
public MqttIotHubAdapter(Settings settings, DeviceClientFactoryFunc deviceClientFactory, ISessionStatePersistenceProvider sessionStateManager, IAuthenticationProvider authProvider, ITopicNameRouter topicNameRouter, IQos2StatePersistenceProvider qos2StateProvider) { Contract.Requires(settings != null); Contract.Requires(sessionStateManager != null); Contract.Requires(authProvider != null); Contract.Requires(topicNameRouter != null); if (qos2StateProvider != null) { this.maxSupportedQosToClient = QualityOfService.ExactlyOnce; this.qos2StateProvider = qos2StateProvider; } else { this.maxSupportedQosToClient = QualityOfService.AtLeastOnce; } this.settings = settings; this.deviceClientFactory = deviceClientFactory; this.sessionStateManager = sessionStateManager; this.authProvider = authProvider; this.topicNameRouter = topicNameRouter; this.publishProcessor = new PacketAsyncProcessor <PublishPacket>(this.PublishToServerAsync); this.publishProcessor.Completion.OnFault(ShutdownOnPublishToServerFaultAction); TimeSpan?ackTimeout = this.settings.DeviceReceiveAckCanTimeout ? this.settings.DeviceReceiveAckTimeout : (TimeSpan?)null; this.publishPubAckProcessor = new RequestAckPairProcessor <AckPendingMessageState, PublishPacket>(this.AcknowledgePublishAsync, this.RetransmitNextPublish, ackTimeout); this.publishPubAckProcessor.Completion.OnFault(ShutdownOnPubAckFaultAction); this.publishPubRecProcessor = new RequestAckPairProcessor <AckPendingMessageState, PublishPacket>(this.AcknowledgePublishReceiveAsync, this.RetransmitNextPublish, ackTimeout); this.publishPubRecProcessor.Completion.OnFault(ShutdownOnPubRecFaultAction); this.pubRelPubCompProcessor = new RequestAckPairProcessor <CompletionPendingMessageState, PubRelPacket>(this.AcknowledgePublishCompleteAsync, this.RetransmitNextPublishRelease, ackTimeout); this.pubRelPubCompProcessor.Completion.OnFault(ShutdownOnPubCompFaultAction); }