static void Main(string[] args)
{
// optimizing IOCP performance
int minWorkerThreads;
int minCompletionPortThreads;
ThreadPool.GetMinThreads(out minWorkerThreads, out minCompletionPortThreads);
ThreadPool.SetMinThreads(minWorkerThreads, Math.Max(16, minCompletionPortThreads));
int threadCount = Environment.ProcessorCount;
if (args.Length > 0)
{
threadCount = int.Parse(args[0]);
}
var eventListener = new ObservableEventListener();
eventListener.LogToConsole();
eventListener.EnableEvents(BootstrapperEventSource.Log, EventLevel.Verbose);
eventListener.EnableEvents(MqttIotHubAdapterEventSource.Log, EventLevel.Verbose);
eventListener.EnableEvents(DefaultEventSource.Log, EventLevel.Verbose);
try
{
var cts = new CancellationTokenSource();
var certificate = new X509Certificate2("protocol-gateway.contoso.com.pfx", "password");
var settingsProvider = new AppConfigSettingsProvider();
BlobSessionStatePersistenceProvider blobSessionStateProvider = BlobSessionStatePersistenceProvider.CreateAsync(
settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageConnectionString"),
settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageContainerName")).Result;
TableQos2StatePersistenceProvider tableQos2StateProvider = TableQos2StatePersistenceProvider.CreateAsync(
settingsProvider.GetSetting("TableQos2StatePersistenceProvider.StorageConnectionString"),
settingsProvider.GetSetting("TableQos2StatePersistenceProvider.StorageTableName")).Result;
var bootstrapper = new Bootstrapper(settingsProvider, blobSessionStateProvider, tableQos2StateProvider);
Task.Run(() => bootstrapper.RunAsync(certificate, threadCount, cts.Token), cts.Token);
while (true)
{
string input = Console.ReadLine();
if (input != null && input.ToLowerInvariant() == "exit")
{
break;
}
}
cts.Cancel();
bootstrapper.CloseCompletion.Wait(TimeSpan.FromSeconds(20));
}
finally
{
eventListener.Dispose();
}
}
async Task RunAsync(CancellationToken cancellationToken)
{
var settingsProvider = new RoleEnvironmentSettingsProvider();
var eventListener = new ObservableEventListener();
eventListener.LogToWindowsAzureTable(RoleEnvironment.CurrentRoleInstance.Id, settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageConnectionString"), bufferingInterval: TimeSpan.FromMinutes(2));
eventListener.EnableEvents(BootstrapperEventSource.Log, EventLevel.Informational);
eventListener.EnableEvents(MqttIotHubAdapterEventSource.Log, EventLevel.Informational);
eventListener.EnableEvents(DefaultEventSource.Log, EventLevel.Informational);
int minWorkerThreads;
int minCompletionPortThreads;
ThreadPool.GetMinThreads(out minWorkerThreads, out minCompletionPortThreads);
ThreadPool.SetMinThreads(minWorkerThreads, Math.Max(16, minCompletionPortThreads));
int threadCount = Environment.ProcessorCount;
BlobSessionStatePersistenceProvider blobSessionStateProvider =
await BlobSessionStatePersistenceProvider.CreateAsync(
settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageConnectionString"),
settingsProvider.GetSetting("BlobSessionStatePersistenceProvider.StorageContainerName"));
TableQos2StatePersistenceProvider tableQos2StateProvider =
await TableQos2StatePersistenceProvider.CreateAsync(
settingsProvider.GetSetting("TableQos2StatePersistenceProvider.StorageConnectionString"),
settingsProvider.GetSetting("TableQos2StatePersistenceProvider.StorageTableName"));
var bootstrapper = new Bootstrapper(
settingsProvider,
blobSessionStateProvider,
tableQos2StateProvider);
X509Certificate2 tlsCertificate = GetTlsCertificate(settingsProvider.GetSetting("TlsCertificateThumbprint"),
StoreName.My, StoreLocation.LocalMachine);
try
{
await bootstrapper.RunAsync(tlsCertificate, threadCount, cancellationToken);
}
catch (Exception ex)
{
Trace.TraceError(ex.ToString());
throw;
}
await bootstrapper.CloseCompletion;
}
/// <summary>
/// Called by the service fabric when the listener is to be started
/// </summary>
/// <param name="cancellationToken">A token to monitor for abort requests</param>
/// <returns>A task that completes when the service is openned</returns>
public async Task<string> OpenAsync(CancellationToken cancellationToken)
{
string publishAddress = null;
Guid traceId = Guid.NewGuid();
int threadCount = Environment.ProcessorCount;
this.serverControl = new CancellationTokenSource();
GatewayConfiguration configuration = this.configurationProvider.Config;
this.logger.Informational(traceId, this.componentName, "OpenAsync() invoked.");
var iotHubConfigurationProvider = new ConfigurationProvider<IoTHubConfiguration>(traceId, this.serviceContext.ServiceName, this.serviceContext.CodePackageActivationContext, this.logger, "IoTHubClient");
iotHubConfigurationProvider.ConfigurationChangedEvent += (sender, args) => this.unsupportedConfigurationChangeCallback?.Invoke();
iotHubConfigurationProvider.ConfigurationPropertyChangedEvent += (sender, args) => this.unsupportedConfigurationChangeCallback?.Invoke();
IoTHubConfiguration iotHubConfiguration = iotHubConfigurationProvider.Config;
X509Certificate2 certificate = this.GetServerCertificate(configuration);
this.logger.Informational(traceId, this.componentName, "Certificate retrieved.");
var mqttConfigurationProvider = new ConfigurationProvider<MqttServiceConfiguration>(traceId, this.serviceContext.ServiceName, this.serviceContext.CodePackageActivationContext, this.logger, "Mqtt");
mqttConfigurationProvider.ConfigurationChangedEvent += (sender, args) => this.unsupportedConfigurationChangeCallback?.Invoke();
mqttConfigurationProvider.ConfigurationPropertyChangedEvent += (sender, args) => this.unsupportedConfigurationChangeCallback?.Invoke();
MqttServiceConfiguration mqttConfiguration = mqttConfigurationProvider.Config;
if (mqttConfiguration != null)
{
var mqttInboundTemplates = new List<string>(mqttConfiguration.MqttInboundTemplates);
var mqttOutboundTemplates = new List<string>(mqttConfiguration.MqttOutboundTemplates);
ISessionStatePersistenceProvider qosSessionProvider = await this.GetSessionStateProviderAsync(traceId, mqttConfiguration).ConfigureAwait(false);
IQos2StatePersistenceProvider qos2SessionProvider = await this.GetQos2StateProvider(traceId, mqttConfiguration).ConfigureAwait(false);
this.logger.Informational(traceId, this.componentName, "QOS Providers instantiated.");
var settingsProvider = new ServiceFabricConfigurationProvider(traceId, this.componentName, this.logger, configuration, iotHubConfiguration, mqttConfiguration);
this.bootStrapper = new Bootstrapper(settingsProvider, qosSessionProvider, qos2SessionProvider, mqttInboundTemplates, mqttOutboundTemplates);
this.runTask = this.bootStrapper.RunAsync(certificate, threadCount, this.serverControl.Token);
publishAddress = this.BuildPublishAddress(configuration);
this.logger.Informational(traceId, this.componentName, "Bootstrapper instantiated.");
}
else
{
this.logger.Critical(traceId, this.componentName, "Failed to start endpoint because Mqtt service configuration is missing.");
}
return publishAddress;
}