//--//
public WindowsService(ILogger logger)
{
if (logger == null)
{
throw new ArgumentException("Cannot run service without logging");
}
_logger = logger;
if (logger is TunableLogger)
{
TunableLogger.LoggingLevel loggingLevel = TunableLogger.LevelFromString(ConfigurationManager.AppSettings.Get("LoggingLevel"));
(( TunableLogger )logger).Level = (loggingLevel != TunableLogger.LoggingLevel.Undefined) ? loggingLevel : TunableLogger.LoggingLevel.Errors;
}
try
{
_THREADING.TaskScheduler.UnobservedTaskException += OnUnobservedTaskException;
// Name the Windows Service
ServiceName = Constants.WindowsServiceName;
_gatewayQueue = new GatewayQueue <QueuedItem>( );
AMQPConfig amqpConfig = Loader.GetAMQPConfig( );
if (amqpConfig == null)
{
_logger.LogError("AMQP configuration is missing");
return;
}
_AMPQSender = new AMQPSender <SensorDataContract>(
amqpConfig.AMQPSAddress,
amqpConfig.EventHubName,
amqpConfig.EventHubMessageSubject,
amqpConfig.EventHubDeviceId,
amqpConfig.EventHubDeviceDisplayName,
_logger
);
_batchSenderThread = new BatchSenderThread <QueuedItem, SensorDataContract>(
_gatewayQueue,
_AMPQSender,
null, //m => DataTransforms.AddTimeCreated(DataTransforms.SensorDataContractFromQueuedItem(m, _Logger)),
new Func <QueuedItem, string>(m => m.JsonData),
_logger);
_dataIntakeLoader = new DeviceAdapterLoader(Loader.GetSources( ), Loader.GetEndpoints( ), _logger);
}
catch (Exception ex)
{
_logger.LogError("Exception creating WindowsService: " + ex.Message);
}
}
private static GatewayService CreateGateway(AMQPConfig amqpConfig)
{
try
{
var _gatewayQueue = new GatewayQueue<QueuedItem>();
var _AMPQSender = new AMQPSender<string>(
amqpConfig.AMQPSAddress,
amqpConfig.EventHubName,
amqpConfig.EventHubMessageSubject,
amqpConfig.EventHubDeviceId,
amqpConfig.EventHubDeviceDisplayName,
_Logger
);
var _batchSenderThread = new BatchSenderThread<QueuedItem, string>(
_gatewayQueue,
_AMPQSender,
null,
m => m.JsonData,
_Logger);
_batchSenderThread.Start();
GatewayService service = new GatewayService(
_gatewayQueue,
_batchSenderThread
)
{
Logger = _Logger
};
service.OnDataInQueue += (data) => _batchSenderThread.Process();
_Logger.Flush();
return service;
}
catch (Exception ex)
{
_Logger.LogError("Exception on creating Gateway: " + ex.Message);
}
return null;
}
internal static AMQPConfig GetAMQPConfig( )
{
AMQPServiceConfigSection section = ConfigurationManager.GetSection( "AMQPServiceConfig" ) as AMQPServiceConfigSection;
AMQPConfig configData = null;
if( section != null )
{
configData = new AMQPConfig
{
AMQPSAddress = section.AMQPSAddress,
EventHubName = section.EventHubName,
EventHubMessageSubject = section.EventHubMessageSubject,
EventHubDeviceId = section.EventHubDeviceId,
EventHubDeviceDisplayName = section.EventHubDeviceDisplayName
};
}
return configData;
}
//--//
private static void InitGateway( ILogger logger )
{
if( logger == null )
{
throw new ArgumentException( "Cannot run service without logging" );
}
_logger = logger;
if( logger is TunableLogger )
{
TunableLogger.LoggingLevel loggingLevel = TunableLogger.LevelFromString( ConfigurationManager.AppSettings.Get( "LoggingLevel" ) );
( ( TunableLogger )logger ).Level = ( loggingLevel != TunableLogger.LoggingLevel.Undefined ) ? loggingLevel : TunableLogger.LoggingLevel.Errors;
}
try
{
System.Threading.Tasks.TaskScheduler.UnobservedTaskException += OnUnobservedTaskException;
// Name the Windows Service
_gatewayQueue = new GatewayQueue<QueuedItem>( );
AMQPConfig amqpConfig = Loader.GetAMQPConfig( );
if( amqpConfig == null )
{
_logger.LogError( "AMQP configuration is missing" );
return;
}
_AMPQSender = new AMQPSender<SensorDataContract>(
amqpConfig.AMQPSAddress,
amqpConfig.EventHubName,
amqpConfig.EventHubMessageSubject,
amqpConfig.EventHubDeviceId,
amqpConfig.EventHubDeviceDisplayName,
_logger
);
_batchSenderThread = new BatchSenderThread<QueuedItem, SensorDataContract>(
_gatewayQueue,
_AMPQSender,
null,//m => DataTransforms.AddTimeCreated(DataTransforms.SensorDataContractFromQueuedItem(m, _Logger)),
new Func<QueuedItem, string>( m => m.JsonData ),
_logger );
_dataIntakeLoader = new DeviceAdapterLoader( Loader.GetSources( ), Loader.GetEndpoints( ), _logger );
TaskWrapper.Run( ( ) => IPAddressHelper.GetIPAddressString( ref _gatewayIPAddressString ) );
DataTransformsConfig dataTransformsConfig = Loader.GetDataTransformsConfig( );
if( dataTransformsConfig.AttachIP || dataTransformsConfig.AttachTime )
{
Func<string, SensorDataContract> transform = ( m => DataTransforms.SensorDataContractFromString( m, _logger ) );
if( dataTransformsConfig.AttachTime )
{
var transformPrev = transform;
transform = ( m => DataTransforms.AddTimeCreated( transformPrev( m ) ) );
}
if( dataTransformsConfig.AttachTime )
{
var transformPrev = transform;
transform = ( m => DataTransforms.AddIPToLocation( transformPrev( m ), _gatewayIPAddressString ) );
}
_gatewayTransform = ( m => DataTransforms.QueuedItemFromSensorDataContract( transform( m ) ) );
}
}
catch( Exception ex )
{
_logger.LogError( "Exception creating Gateway: " + ex.Message );
}
}
private static AMQPConfig PrepareAMQPConfig(string connectionString, string hubName,
string messageSubject, string messageDeviceId, string messageDeviceDisplayName)
{
try
{
NamespaceManager nsmgr = NamespaceManager.CreateFromConnectionString(connectionString);
EventHubDescription desc = nsmgr.GetEventHub(hubName);
foreach (var rule in desc.Authorization)
{
var accessAuthorizationRule = rule as SharedAccessAuthorizationRule;
if (accessAuthorizationRule == null) continue;
if (!accessAuthorizationRule.Rights.Contains(AccessRights.Send)) continue;
string amqpAddress = string.Format("amqps://{0}:{1}@{2}",
accessAuthorizationRule.KeyName,
Uri.EscapeDataString(accessAuthorizationRule.PrimaryKey), nsmgr.Address.Host);
AMQPConfig amqpConfig = new AMQPConfig
{
AMQPSAddress = amqpAddress,
EventHubName = hubName,
EventHubDeviceDisplayName =
string.IsNullOrEmpty(messageSubject) ? "SensorGatewayService" : messageSubject,
EventHubDeviceId =
string.IsNullOrEmpty(messageDeviceId)
? "a94cd58f-4698-4d6a-b9b5-4e3e0f794618"
: messageDeviceId,
EventHubMessageSubject =
string.IsNullOrEmpty(messageDeviceDisplayName) ? "gtsv" : messageDeviceDisplayName
};
return amqpConfig;
}
}
catch (Exception)
{
}
return null;
}