/// <summary>
/// Asynchronous part of the main method of the app.
/// </summary>
public async static Task MainAsync(string[] args)
{
try
{
var shouldShowHelp = false;
// Shutdown token sources.
ShutdownTokenSource = new CancellationTokenSource();
// detect the runtime environment. either we run standalone (native or containerized) or as IoT Edge module (containerized)
// check if we have an environment variable containing an IoT Edge connectionstring, we run as IoT Edge module
if (IsIotEdgeModule)
{
WriteLine("IoTEdge detected.");
}
// command line options
Mono.Options.OptionSet options = new Mono.Options.OptionSet {
// Publisher configuration options
{ "pf|publishfile=", $"the filename to configure the nodes to publish.\nDefault: '{PublisherNodeConfigurationFilename}'", (string p) => PublisherNodeConfigurationFilename = p },
{ "tc|telemetryconfigfile=", $"the filename to configure the ingested telemetry\nDefault: '{PublisherTelemetryConfigurationFilename}'", (string p) => PublisherTelemetryConfigurationFilename = p },
{ "s|site=", $"the site OPC Publisher is working in. if specified this domain is appended (delimited by a ':' to the 'ApplicationURI' property when telemetry is sent to IoTHub.\n" +
"The value must follow the syntactical rules of a DNS hostname.\nDefault: not set", (string s) => {
Regex siteNameRegex = new Regex("^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$");
if (siteNameRegex.IsMatch(s))
{
PublisherSite = s;
}
else
{
throw new OptionException("The shopfloor site is not a valid DNS hostname.", "site");
}
} },
{ "sd|shopfloordomain=", $"same as site option, only there for backward compatibility\n" +
"The value must follow the syntactical rules of a DNS hostname.\nDefault: not set", (string s) => {
Regex siteNameRegex = new Regex("^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$");
if (siteNameRegex.IsMatch(s))
{
PublisherSite = s;
}
else
{
throw new OptionException("The shopfloor domain is not a valid DNS hostname.", "shopfloordomain");
}
} },
{ "ic|iotcentral", $"publisher will send OPC UA data in IoTCentral compatible format (DisplayName of a node is used as key, this key is the Field name in IoTCentral). you need to ensure that all DisplayName's are unique. (Auto enables fetch display name)\nDefault: {IotCentralMode}", b => IotCentralMode = FetchOpcNodeDisplayName = b != null },
{ "sw|sessionconnectwait=", $"specify the wait time in seconds publisher is trying to connect to disconnected endpoints and starts monitoring unmonitored items\nMin: 10\nDefault: {_publisherSessionConnectWaitSec}", (int i) => {
if (i > 10)
{
_publisherSessionConnectWaitSec = i;
}
else
{
throw new OptionException("The sessionconnectwait must be greater than 10 sec", "sessionconnectwait");
}
} },
{ "mq|monitoreditemqueuecapacity=", $"specify how many notifications of monitored items can be stored in the internal queue, if the data can not be sent quick enough to IoTHub\nMin: 1024\nDefault: {MonitoredItemsQueueCapacity}", (int i) => {
if (i >= 1024)
{
MonitoredItemsQueueCapacity = i;
}
else
{
throw new OptionException("The monitoreditemqueueitems must be greater than 1024", "monitoreditemqueueitems");
}
} },
{ "di|diagnosticsinterval=", $"shows publisher diagnostic info at the specified interval in seconds (need log level info). 0 disables diagnostic output.\nDefault: {DiagnosticsInterval}", (uint u) => DiagnosticsInterval = u },
{ "vc|verboseconsole=", $"ignored, only supported for backward comaptibility.", b => {} },
{ "ns|noshutdown=", $"same as runforever.\nDefault: {_noShutdown}", (bool b) => _noShutdown = b },
{ "rf|runforever", $"publisher can not be stopped by pressing a key on the console, but will run forever.\nDefault: {_noShutdown}", b => _noShutdown = b != null },
{ "lf|logfile=", $"the filename of the logfile to use.\nDefault: './{_logFileName}'", (string l) => _logFileName = l },
{ "lt|logflushtimespan=", $"the timespan in seconds when the logfile should be flushed.\nDefault: {_logFileFlushTimeSpanSec} sec", (int s) => {
if (s > 0)
{
_logFileFlushTimeSpanSec = TimeSpan.FromSeconds(s);
}
else
{
throw new Mono.Options.OptionException("The logflushtimespan must be a positive number.", "logflushtimespan");
}
} },
{ "ll|loglevel=", $"the loglevel to use (allowed: fatal, error, warn, info, debug, verbose).\nDefault: info", (string l) => {
List <string> logLevels = new List <string> {
"fatal", "error", "warn", "info", "debug", "verbose"
};
if (logLevels.Contains(l.ToLowerInvariant()))
{
_logLevel = l.ToLowerInvariant();
}
else
{
throw new Mono.Options.OptionException("The loglevel must be one of: fatal, error, warn, info, debug, verbose", "loglevel");
}
} },
// IoTHub specific options
{ "ih|iothubprotocol=", $"{(IsIotEdgeModule ? "not supported when running as IoTEdge module (Mqtt_Tcp_Only is enforced)\n" : $"the protocol to use for communication with Azure IoTHub (allowed values: {string.Join(", ", Enum.GetNames(IotHubProtocol.GetType()))}).\nDefault: {Enum.GetName(IotHubProtocol.GetType(), IotHubProtocol)}")}",
(Microsoft.Azure.Devices.Client.TransportType p) => {
if (IsIotEdgeModule)
{
if (p != Microsoft.Azure.Devices.Client.TransportType.Mqtt_Tcp_Only)
{
WriteLine("When running as IoTEdge module Mqtt_Tcp_Only is enforced.");
IotHubProtocol = Microsoft.Azure.Devices.Client.TransportType.Mqtt_Tcp_Only;
}
}
else
{
IotHubProtocol = p;
}
} },
{ "ms|iothubmessagesize=", $"the max size of a message which can be send to IoTHub. when telemetry of this size is available it will be sent.\n0 will enforce immediate send when telemetry is available\nMin: 0\nMax: {HubMessageSizeMax}\nDefault: {HubMessageSize}", (uint u) => {
if (u >= 0 && u <= HubMessageSizeMax)
{
HubMessageSize = u;
}
else
{
throw new OptionException("The iothubmessagesize must be in the range between 1 and 256*1024.", "iothubmessagesize");
}
} },
{ "si|iothubsendinterval=", $"the interval in seconds when telemetry should be send to IoTHub. If 0, then only the iothubmessagesize parameter controls when telemetry is sent.\nDefault: '{DefaultSendIntervalSeconds}'", (int i) => {
if (i >= 0)
{
DefaultSendIntervalSeconds = i;
}
else
{
throw new OptionException("The iothubsendinterval must be larger or equal 0.", "iothubsendinterval");
}
} },
{ "dc|deviceconnectionstring=", $"{(IsIotEdgeModule ? "not supported when running as IoTEdge module\n" : $"if publisher is not able to register itself with IoTHub, you can create a device with name <applicationname> manually and pass in the connectionstring of this device.\nDefault: none")}",
(string dc) => DeviceConnectionString = (IsIotEdgeModule ? null : dc) },
{ "c|connectionstring=", $"the IoTHub owner connectionstring.\nDefault: none",
(string cs) => IotHubOwnerConnectionString = cs },
// opc server configuration options
{ "pn|portnum=", $"the server port of the publisher OPC server endpoint.\nDefault: {PublisherServerPort}", (ushort p) => PublisherServerPort = p },
{ "pa|path=", $"the enpoint URL path part of the publisher OPC server endpoint.\nDefault: '{PublisherServerPath}'", (string a) => PublisherServerPath = a },
{ "lr|ldsreginterval=", $"the LDS(-ME) registration interval in ms. If 0, then the registration is disabled.\nDefault: {LdsRegistrationInterval}", (int i) => {
if (i >= 0)
{
LdsRegistrationInterval = i;
}
else
{
throw new OptionException("The ldsreginterval must be larger or equal 0.", "ldsreginterval");
}
} },
{ "ol|opcmaxstringlen=", $"the max length of a string opc can transmit/receive.\nDefault: {OpcMaxStringLength}", (int i) => {
if (i > 0)
{
OpcMaxStringLength = i;
}
else
{
throw new OptionException("The max opc string length must be larger than 0.", "opcmaxstringlen");
}
} },
{ "ot|operationtimeout=", $"the operation timeout of the publisher OPC UA client in ms.\nDefault: {OpcOperationTimeout}", (int i) => {
if (i >= 0)
{
OpcOperationTimeout = i;
}
else
{
throw new OptionException("The operation timeout must be larger or equal 0.", "operationtimeout");
}
} },
{ "oi|opcsamplinginterval=", "the publisher is using this as default value in milliseconds to request the servers to sample the nodes with this interval\n" +
"this value might be revised by the OPC UA servers to a supported sampling interval.\n" +
"please check the OPC UA specification for details how this is handled by the OPC UA stack.\n" +
"a negative value will set the sampling interval to the publishing interval of the subscription this node is on.\n" +
$"0 will configure the OPC UA server to sample in the highest possible resolution and should be taken with care.\nDefault: {OpcSamplingInterval}", (int i) => OpcSamplingInterval = i },
{ "op|opcpublishinginterval=", "the publisher is using this as default value in milliseconds for the publishing interval setting of the subscriptions established to the OPC UA servers.\n" +
"please check the OPC UA specification for details how this is handled by the OPC UA stack.\n" +
$"a value less than or equal zero will let the server revise the publishing interval.\nDefault: {OpcPublishingInterval}", (int i) => {
if (i > 0 && i >= OpcSamplingInterval)
{
OpcPublishingInterval = i;
}
else
{
if (i <= 0)
{
OpcPublishingInterval = 0;
}
else
{
throw new OptionException($"The opcpublishinterval ({i}) must be larger than the opcsamplinginterval ({OpcSamplingInterval}).", "opcpublishinterval");
}
}
} },
{ "ct|createsessiontimeout=", $"specify the timeout in seconds used when creating a session to an endpoint. On unsuccessful connection attemps a backoff up to {OpcSessionCreationBackoffMax} times the specified timeout value is used.\nMin: 1\nDefault: {OpcSessionCreationTimeout}", (uint u) => {
if (u > 1)
{
OpcSessionCreationTimeout = u;
}
else
{
throw new OptionException("The createsessiontimeout must be greater than 1 sec", "createsessiontimeout");
}
} },
{ "ki|keepaliveinterval=", $"specify the interval in seconds the publisher is sending keep alive messages to the OPC servers on the endpoints it is connected to.\nMin: 2\nDefault: {OpcKeepAliveIntervalInSec}", (int i) => {
if (i >= 2)
{
OpcKeepAliveIntervalInSec = i;
}
else
{
throw new OptionException("The keepaliveinterval must be greater or equal 2", "keepalivethreshold");
}
} },
{ "kt|keepalivethreshold=", $"specify the number of keep alive packets a server can miss, before the session is disconneced\nMin: 1\nDefault: {OpcKeepAliveDisconnectThreshold}", (uint u) => {
if (u > 1)
{
OpcKeepAliveDisconnectThreshold = u;
}
else
{
throw new OptionException("The keepalivethreshold must be greater than 1", "keepalivethreshold");
}
} },
{ "st|opcstacktracemask=", $"ignored, only supported for backward comaptibility.", i => {} },
{ "as|autotrustservercerts=", $"same as autoaccept, only supported for backward cmpatibility.\nDefault: {OpcPublisherAutoTrustServerCerts}", (bool b) => OpcPublisherAutoTrustServerCerts = b },
{ "aa|autoaccept", $"the publisher trusts all servers it is establishing a connection to.\nDefault: {OpcPublisherAutoTrustServerCerts}", b => OpcPublisherAutoTrustServerCerts = b != null },
// trust own public cert option
{ "tm|trustmyself=", $"same as trustowncert.\nDefault: {TrustMyself}", (bool b) => TrustMyself = b },
{ "to|trustowncert", $"the publisher certificate is put into the trusted certificate store automatically.\nDefault: {TrustMyself}", t => TrustMyself = t != null },
// read the display name of the nodes to publish from the server and publish them instead of the node id
{ "fd|fetchdisplayname=", $"same as fetchname.\nDefault: {FetchOpcNodeDisplayName}", (bool b) => FetchOpcNodeDisplayName = IotCentralMode ? true : b },
{ "fn|fetchname", $"enable to read the display name of a published node from the server. this will increase the runtime.\nDefault: {FetchOpcNodeDisplayName}", b => FetchOpcNodeDisplayName = IotCentralMode ? true : b != null },
// own cert store options
{ "at|appcertstoretype=", $"the own application cert store type. \n(allowed values: Directory, X509Store)\nDefault: '{OpcOwnCertStoreType}'", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(CertificateStoreType.Directory, StringComparison.OrdinalIgnoreCase))
{
OpcOwnCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : CertificateStoreType.Directory;
OpcOwnCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcOwnCertX509StorePathDefault : OpcOwnCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
} },
{ "ap|appcertstorepath=", $"the path where the own application cert should be stored\nDefault (depends on store type):\n" +
$"X509Store: '{OpcOwnCertX509StorePathDefault}'\n" +
$"Directory: '{OpcOwnCertDirectoryStorePathDefault}'", (string s) => OpcOwnCertStorePath = s },
// trusted cert store options
{
"tt|trustedcertstoretype=", $"the trusted cert store type. \n(allowed values: Directory, X509Store)\nDefault: {OpcTrustedCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(CertificateStoreType.Directory, StringComparison.OrdinalIgnoreCase))
{
OpcTrustedCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : CertificateStoreType.Directory;
OpcTrustedCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcTrustedCertX509StorePathDefault : OpcTrustedCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "tp|trustedcertstorepath=", $"the path of the trusted cert store\nDefault (depends on store type):\n" +
$"X509Store: '{OpcTrustedCertX509StorePathDefault}'\n" +
$"Directory: '{OpcTrustedCertDirectoryStorePathDefault}'", (string s) => OpcTrustedCertStorePath = s },
// rejected cert store options
{ "rt|rejectedcertstoretype=", $"the rejected cert store type. \n(allowed values: Directory, X509Store)\nDefault: {OpcRejectedCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(CertificateStoreType.Directory, StringComparison.OrdinalIgnoreCase))
{
OpcRejectedCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : CertificateStoreType.Directory;
OpcRejectedCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcRejectedCertX509StorePathDefault : OpcRejectedCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
} },
{ "rp|rejectedcertstorepath=", $"the path of the rejected cert store\nDefault (depends on store type):\n" +
$"X509Store: '{OpcRejectedCertX509StorePathDefault}'\n" +
$"Directory: '{OpcRejectedCertDirectoryStorePathDefault}'", (string s) => OpcRejectedCertStorePath = s },
// issuer cert store options
{
"it|issuercertstoretype=", $"the trusted issuer cert store type. \n(allowed values: Directory, X509Store)\nDefault: {OpcIssuerCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(CertificateStoreType.Directory, StringComparison.OrdinalIgnoreCase))
{
OpcIssuerCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : CertificateStoreType.Directory;
OpcIssuerCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcIssuerCertX509StorePathDefault : OpcIssuerCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "ip|issuercertstorepath=", $"the path of the trusted issuer cert store\nDefault (depends on store type):\n" +
$"X509Store: '{OpcIssuerCertX509StorePathDefault}'\n" +
$"Directory: '{OpcIssuerCertDirectoryStorePathDefault}'", (string s) => OpcIssuerCertStorePath = s },
// device connection string cert store options
{ "dt|devicecertstoretype=", $"the iothub device cert store type. \n(allowed values: Directory, X509Store)\nDefault: {IotDeviceCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(CertificateStoreType.Directory, StringComparison.OrdinalIgnoreCase))
{
IotDeviceCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : CertificateStoreType.Directory;
IotDeviceCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? IotDeviceCertX509StorePathDefault : IotDeviceCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
} },
{ "dp|devicecertstorepath=", $"the path of the iot device cert store\nDefault Default (depends on store type):\n" +
$"X509Store: '{IotDeviceCertX509StorePathDefault}'\n" +
$"Directory: '{IotDeviceCertDirectoryStorePathDefault}'", (string s) => IotDeviceCertStorePath = s },
// misc
{ "i|install", $"register OPC Publisher with IoTHub and then exits.\nDefault: {_installOnly}", i => _installOnly = i != null },
{ "h|help", "show this message and exit", h => shouldShowHelp = h != null },
};
List <string> extraArgs = new List <string>();
try
{
// parse the command line
extraArgs = options.Parse(args);
}
catch (OptionException e)
{
// initialize logging
InitLogging();
// show message
Logger.Error(e, "Error in command line options");
Logger.Error($"Command line arguments: {String.Join(" ", args)}");
// show usage
Usage(options);
return;
}
// initialize logging
InitLogging();
// show usage if requested
if (shouldShowHelp)
{
Usage(options);
return;
}
// Validate and parse extra arguments.
const int APP_NAME_INDEX = 0;
const int CS_INDEX = 1;
switch (extraArgs.Count)
{
case 0:
{
ApplicationName = Utils.GetHostName();
break;
}
case 1:
{
ApplicationName = extraArgs[APP_NAME_INDEX];
break;
}
case 2:
{
ApplicationName = extraArgs[APP_NAME_INDEX];
if (IsIotEdgeModule)
{
WriteLine($"Warning: connection string parameter is not supported in IoTEdge context, given parameter is ignored");
}
else
{
IotHubOwnerConnectionString = extraArgs[CS_INDEX];
}
break;
}
default:
{
Logger.Error("Error in command line options");
Logger.Error($"Command line arguments: {String.Join(" ", args)}");
Usage(options);
return;
}
}
// install only if requested
if (_installOnly)
{
// initialize and start IoTHub communication
IotHubCommunication = new IotHubCommunication(ShutdownTokenSource.Token);
if (!await IotHubCommunication.InitAsync())
{
return;
}
Logger.Information("Installation completed. Exiting...");
return;
}
// start operation
Logger.Information("Publisher is starting up...");
// allow canceling the application
var quitEvent = new ManualResetEvent(false);
try
{
Console.CancelKeyPress += (sender, eArgs) =>
{
quitEvent.Set();
eArgs.Cancel = true;
ShutdownTokenSource.Cancel();
};
}
catch
{
}
// init OPC configuration and tracing
OpcStackConfiguration opcStackConfiguration = new OpcStackConfiguration();
await opcStackConfiguration.ConfigureAsync();
// log shopfloor site setting
if (string.IsNullOrEmpty(PublisherSite))
{
Logger.Information("There is no site configured.");
}
else
{
Logger.Information($"Publisher is in site '{PublisherSite}'.");
}
// Set certificate validator.
if (OpcPublisherAutoTrustServerCerts)
{
Logger.Information("Publisher configured to auto trust server certificates of the servers it is connecting to.");
PublisherOpcApplicationConfiguration.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(CertificateValidator_AutoTrustServerCerts);
}
else
{
Logger.Information("Publisher configured to not auto trust server certificates. When connecting to servers, you need to manually copy the rejected server certs to the trusted store to trust them.");
PublisherOpcApplicationConfiguration.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(CertificateValidator_Default);
}
// start our server interface
try
{
Logger.Information($"Starting server on endpoint {PublisherOpcApplicationConfiguration.ServerConfiguration.BaseAddresses[0].ToString()} ...");
_publisherServer = new PublisherServer();
_publisherServer.Start(PublisherOpcApplicationConfiguration);
Logger.Information("Server started.");
}
catch (Exception e)
{
Logger.Fatal(e, "Failed to start Publisher OPC UA server.");
Logger.Fatal("exiting...");
return;
}
// read telemetry configuration file
PublisherTelemetryConfiguration.Init(ShutdownTokenSource.Token);
if (!await PublisherTelemetryConfiguration.ReadConfigAsync())
{
return;
}
// read node configuration file
PublisherNodeConfiguration.Init();
if (!await PublisherNodeConfiguration.ReadConfigAsync())
{
return;
}
// initialize hub communication
if (IsIotEdgeModule)
{
// initialize and start EdgeHub communication
IotEdgeHubCommunication = new IotEdgeHubCommunication(ShutdownTokenSource.Token);
if (!await IotEdgeHubCommunication.InitAsync())
{
return;
}
}
else
{
// initialize and start IoTHub communication
IotHubCommunication = new IotHubCommunication(ShutdownTokenSource.Token);
if (!await IotHubCommunication.InitAsync())
{
return;
}
}
if (!await CreateOpcPublishingDataAsync())
{
return;
}
// kick off the task to maintain all sessions
Task sessionConnectorAsync = Task.Run(async() => await SessionConnectorAsync(ShutdownTokenSource.Token));
// Show notification on session events
_publisherServer.CurrentInstance.SessionManager.SessionActivated += ServerEventStatus;
_publisherServer.CurrentInstance.SessionManager.SessionClosing += ServerEventStatus;
_publisherServer.CurrentInstance.SessionManager.SessionCreated += ServerEventStatus;
// initialize publisher diagnostics
Diagnostics.Init();
// stop on user request
Logger.Information("");
Logger.Information("");
if (_noShutdown)
{
// wait forever if asked to do so
Logger.Information("Publisher is running infinite...");
await Task.Delay(Timeout.Infinite);
}
else
{
Logger.Information("Publisher is running. Press CTRL-C to quit.");
// wait for Ctrl-C
quitEvent.WaitOne(Timeout.Infinite);
}
Logger.Information("");
Logger.Information("");
ShutdownTokenSource.Cancel();
Logger.Information("Publisher is shutting down...");
// Wait for session connector completion
await sessionConnectorAsync;
// stop the server
_publisherServer.Stop();
// Clean up Publisher sessions
await SessionShutdownAsync();
// shutdown the IoTHub messaging
await IotHubCommunication.ShutdownAsync();
IotHubCommunication = null;
// shutdown diagnostics
await ShutdownAsync();
// free resources
PublisherTelemetryConfiguration.Deinit();
PublisherNodeConfiguration.Deinit();
ShutdownTokenSource = null;
}
catch (Exception e)
{
Logger.Fatal(e, e.StackTrace);
e = e.InnerException ?? null;
while (e != null)
{
Logger.Fatal(e, e.StackTrace);
e = e.InnerException ?? null;
}
Logger.Fatal("Publisher exiting... ");
}
}
/// <summary>
/// Asynchronous part of the main method of the app.
/// </summary>
public async static Task MainAsync(string[] args)
{
try
{
var shouldShowHelp = false;
// command line options configuration
Mono.Options.OptionSet options = new Mono.Options.OptionSet {
// Publishing configuration options
{ "pf|publishfile=", $"the filename to configure the nodes to publish.\nDefault: '{PublisherNodeConfigurationFilename}'", (string p) => PublisherNodeConfigurationFilename = p },
{ "tc|telemetryconfigfile=", $"the filename to configure the ingested telemetry\nDefault: '{PublisherTelemetryConfigurationFilename}'", (string p) => PublisherTelemetryConfigurationFilename = p },
{ "sd|shopfloordomain=", $"the domain of the shopfloor. if specified this domain is appended (delimited by a ':' to the 'ApplicationURI' property when telemetry is sent to IoTHub.\n" +
"The value must follow the syntactical rules of a DNS hostname.\nDefault: not set", (string s) => {
Regex domainNameRegex = new Regex("^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$");
if (domainNameRegex.IsMatch(s))
{
ShopfloorDomain = s;
}
else
{
throw new OptionException("The shopfloor domain is not a valid DNS hostname.", "shopfloordomain");
}
}
},
{ "sw|sessionconnectwait=", $"specify the wait time in seconds publisher is trying to connect to disconnected endpoints and starts monitoring unmonitored items\nMin: 10\nDefault: {_publisherSessionConnectWaitSec}", (int i) => {
if (i > 10)
{
_publisherSessionConnectWaitSec = i;
}
else
{
throw new OptionException("The sessionconnectwait must be greater than 10 sec", "sessionconnectwait");
}
}
},
{ "mq|monitoreditemqueuecapacity=", $"specify how many notifications of monitored items can be stored in the internal queue, if the data can not be sent quick enough to IoTHub\nMin: 1024\nDefault: {MonitoredItemsQueueCapacity}", (int i) => {
if (i >= 1024)
{
MonitoredItemsQueueCapacity = i;
}
else
{
throw new OptionException("The monitoreditemqueueitems must be greater than 1024", "monitoreditemqueueitems");
}
}
},
{ "di|diagnosticsinterval=", $"shows publisher diagnostic info at the specified interval in seconds. 0 disables diagnostic output.\nDefault: {DiagnosticsInterval}", (uint u) => DiagnosticsInterval = u },
{ "vc|verboseconsole=", $"the output of publisher is shown on the console.\nDefault: {VerboseConsole}", (bool b) => VerboseConsole = b },
{ "ns|noshutdown=", $"publisher can not be stopped by pressing a key on the console, but will run forever.\nDefault: {_noShutdown}", (bool b) => _noShutdown = b },
// IoTHub specific options
{ "ih|iothubprotocol=", $"the protocol to use for communication with Azure IoTHub (allowed values: {string.Join(", ", Enum.GetNames(IotHubProtocol.GetType()))}).\nDefault: {Enum.GetName(IotHubProtocol.GetType(), IotHubProtocol)}",
(Microsoft.Azure.Devices.Client.TransportType p) => IotHubProtocol = p
},
{ "ms|iothubmessagesize=", $"the max size of a message which can be send to IoTHub. when telemetry of this size is available it will be sent.\n0 will enforce immediate send when telemetry is available\nMin: 0\nMax: {IotHubMessageSizeMax}\nDefault: {IotHubMessageSize}", (uint u) => {
if (u >= 0 && u <= IotHubMessageSizeMax)
{
IotHubMessageSize = u;
}
else
{
throw new OptionException("The iothubmessagesize must be in the range between 1 and 256*1024.", "iothubmessagesize");
}
}
},
{ "si|iothubsendinterval=", $"the interval in seconds when telemetry should be send to IoTHub. If 0, then only the iothubmessagesize parameter controls when telemetry is sent.\nDefault: '{DefaultSendIntervalSeconds}'", (int i) => {
if (i >= 0)
{
DefaultSendIntervalSeconds = i;
}
else
{
throw new OptionException("The iothubsendinterval must be larger or equal 0.", "iothubsendinterval");
}
}
},
{ "dc|deviceconnectionstring=", $"if publisher is not able to register itself with IoTHub, you can create a device with name <applicationname> manually and pass in the connectionstring of this device.\nDefault: none",
(string dc) => DeviceConnectionString = dc
},
// opc server configuration options
{ "lf|logfile=", $"the filename of the logfile to use.\nDefault: './Logs/<applicationname>.log.txt'", (string l) => LogFileName = l },
{ "pn|portnum=", $"the server port of the publisher OPC server endpoint.\nDefault: {PublisherServerPort}", (ushort p) => PublisherServerPort = p },
{ "pa|path=", $"the enpoint URL path part of the publisher OPC server endpoint.\nDefault: '{PublisherServerPath}'", (string a) => PublisherServerPath = a },
{ "lr|ldsreginterval=", $"the LDS(-ME) registration interval in ms. If 0, then the registration is disabled.\nDefault: {LdsRegistrationInterval}", (int i) => {
if (i >= 0)
{
LdsRegistrationInterval = i;
}
else
{
throw new OptionException("The ldsreginterval must be larger or equal 0.", "ldsreginterval");
}
}
},
{ "ot|operationtimeout=", $"the operation timeout of the publisher OPC UA client in ms.\nDefault: {OpcOperationTimeout}", (int i) => {
if (i >= 0)
{
OpcOperationTimeout = i;
}
else
{
throw new OptionException("The operation timeout must be larger or equal 0.", "operationtimeout");
}
}
},
{ "oi|opcsamplinginterval=", "the publisher is using this as default value in milliseconds to request the servers to sample the nodes with this interval\n" +
"this value might be revised by the OPC UA servers to a supported sampling interval.\n" +
"please check the OPC UA specification for details how this is handled by the OPC UA stack.\n" +
"a negative value will set the sampling interval to the publishing interval of the subscription this node is on.\n" +
$"0 will configure the OPC UA server to sample in the highest possible resolution and should be taken with care.\nDefault: {OpcSamplingInterval}", (int i) => OpcSamplingInterval = i
},
{ "op|opcpublishinginterval=", "the publisher is using this as default value in milliseconds for the publishing interval setting of the subscriptions established to the OPC UA servers.\n" +
"please check the OPC UA specification for details how this is handled by the OPC UA stack.\n" +
$"a value less than or equal zero will let the server revise the publishing interval.\nDefault: {OpcPublishingInterval}", (int i) => {
if (i > 0 && i >= OpcSamplingInterval)
{
OpcPublishingInterval = i;
}
else
{
if (i <= 0)
{
OpcPublishingInterval = 0;
}
else
{
throw new OptionException($"The opcpublishinterval ({i}) must be larger than the opcsamplinginterval ({OpcSamplingInterval}).", "opcpublishinterval");
}
}
}
},
{ "ct|createsessiontimeout=", $"specify the timeout in seconds used when creating a session to an endpoint. On unsuccessful connection attemps a backoff up to {OpcSessionCreationBackoffMax} times the specified timeout value is used.\nMin: 1\nDefault: {OpcSessionCreationTimeout}", (uint u) => {
if (u > 1)
{
OpcSessionCreationTimeout = u;
}
else
{
throw new OptionException("The createsessiontimeout must be greater than 1 sec", "createsessiontimeout");
}
}
},
{ "ki|keepaliveinterval=", $"specify the interval in seconds the publisher is sending keep alive messages to the OPC servers on the endpoints it is connected to.\nMin: 2\nDefault: {OpcKeepAliveIntervalInSec}", (int i) => {
if (i >= 2)
{
OpcKeepAliveIntervalInSec = i;
}
else
{
throw new OptionException("The keepaliveinterval must be greater or equal 2", "keepalivethreshold");
}
}
},
{ "kt|keepalivethreshold=", $"specify the number of keep alive packets a server can miss, before the session is disconneced\nMin: 1\nDefault: {OpcKeepAliveDisconnectThreshold}", (uint u) => {
if (u > 1)
{
OpcKeepAliveDisconnectThreshold = u;
}
else
{
throw new OptionException("The keepalivethreshold must be greater than 1", "keepalivethreshold");
}
}
},
{ "st|opcstacktracemask=", $"the trace mask for the OPC stack. See github OPC .NET stack for definitions.\nTo enable IoTHub telemetry tracing set it to 711.\nDefault: {OpcStackTraceMask:X} ({OpcStackTraceMask})", (int i) => {
if (i >= 0)
{
OpcStackTraceMask = i;
}
else
{
throw new OptionException("The OPC stack trace mask must be larger or equal 0.", "opcstacktracemask");
}
}
},
{ "as|autotrustservercerts=", $"the publisher trusts all servers it is establishing a connection to.\nDefault: {OpcPublisherAutoTrustServerCerts}", (bool b) => OpcPublisherAutoTrustServerCerts = b },
// trust own public cert option
{ "tm|trustmyself=", $"the publisher certificate is put into the trusted certificate store automatically.\nDefault: {TrustMyself}", (bool b) => TrustMyself = b },
// read the display name of the nodes to publish from the server and publish them instead of the node id
{ "fd|fetchdisplayname=", $"enable to read the display name of a published node from the server. this will increase the runtime.\nDefault: {FetchOpcNodeDisplayName}", (bool b) => FetchOpcNodeDisplayName = b },
// own cert store options
{ "at|appcertstoretype=", $"the own application cert store type. \n(allowed values: Directory, X509Store)\nDefault: '{OpcOwnCertStoreType}'", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(Directory, StringComparison.OrdinalIgnoreCase))
{
OpcOwnCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : Directory;
OpcOwnCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcOwnCertX509StorePathDefault : OpcOwnCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "ap|appcertstorepath=", $"the path where the own application cert should be stored\nDefault (depends on store type):\n" +
$"X509Store: '{OpcOwnCertX509StorePathDefault}'\n" +
$"Directory: '{OpcOwnCertDirectoryStorePathDefault}'", (string s) => OpcOwnCertStorePath = s
},
// trusted cert store options
{
"tt|trustedcertstoretype=", $"the trusted cert store type. \n(allowed values: Directory, X509Store)\nDefault: {OpcTrustedCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(Directory, StringComparison.OrdinalIgnoreCase))
{
OpcTrustedCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : Directory;
OpcTrustedCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcTrustedCertX509StorePathDefault : OpcTrustedCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "tp|trustedcertstorepath=", $"the path of the trusted cert store\nDefault (depends on store type):\n" +
$"X509Store: '{OpcTrustedCertX509StorePathDefault}'\n" +
$"Directory: '{OpcTrustedCertDirectoryStorePathDefault}'", (string s) => OpcTrustedCertStorePath = s
},
// rejected cert store options
{ "rt|rejectedcertstoretype=", $"the rejected cert store type. \n(allowed values: Directory, X509Store)\nDefault: {OpcRejectedCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(Directory, StringComparison.OrdinalIgnoreCase))
{
OpcRejectedCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : Directory;
OpcRejectedCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcRejectedCertX509StorePathDefault : OpcRejectedCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "rp|rejectedcertstorepath=", $"the path of the rejected cert store\nDefault (depends on store type):\n" +
$"X509Store: '{OpcRejectedCertX509StorePathDefault}'\n" +
$"Directory: '{OpcRejectedCertDirectoryStorePathDefault}'", (string s) => OpcRejectedCertStorePath = s
},
// issuer cert store options
{
"it|issuercertstoretype=", $"the trusted issuer cert store type. \n(allowed values: Directory, X509Store)\nDefault: {OpcIssuerCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(Directory, StringComparison.OrdinalIgnoreCase))
{
OpcIssuerCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : Directory;
OpcIssuerCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? OpcIssuerCertX509StorePathDefault : OpcIssuerCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "ip|issuercertstorepath=", $"the path of the trusted issuer cert store\nDefault (depends on store type):\n" +
$"X509Store: '{OpcIssuerCertX509StorePathDefault}'\n" +
$"Directory: '{OpcIssuerCertDirectoryStorePathDefault}'", (string s) => OpcIssuerCertStorePath = s
},
// device connection string cert store options
{ "dt|devicecertstoretype=", $"the iothub device cert store type. \n(allowed values: Directory, X509Store)\nDefault: {IotDeviceCertStoreType}", (string s) => {
if (s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) || s.Equals(Directory, StringComparison.OrdinalIgnoreCase))
{
IotDeviceCertStoreType = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? X509Store : Directory;
IotDeviceCertStorePath = s.Equals(X509Store, StringComparison.OrdinalIgnoreCase) ? IotDeviceCertX509StorePathDefault : IotDeviceCertDirectoryStorePathDefault;
}
else
{
throw new OptionException();
}
}
},
{ "dp|devicecertstorepath=", $"the path of the iot device cert store\nDefault Default (depends on store type):\n" +
$"X509Store: '{IotDeviceCertX509StorePathDefault}'\n" +
$"Directory: '{IotDeviceCertDirectoryStorePathDefault}'", (string s) => IotDeviceCertStorePath = s
},
// misc
{ "h|help", "show this message and exit", h => shouldShowHelp = h != null },
};
List<string> arguments = new List<string>();
int maxAllowedArguments = 2;
int applicationNameIndex = 0;
int connectionStringIndex = 1;
if (IsIotEdgeModule)
{
maxAllowedArguments = 3;
applicationNameIndex = 1;
connectionStringIndex = 2;
}
try
{
// parse the command line
arguments = options.Parse(args);
}
catch (OptionException e)
{
// show message
WriteLine($"Error: {e.Message}");
// show usage
Usage(options);
return;
}
// Validate and parse arguments.
if (arguments.Count > maxAllowedArguments || shouldShowHelp)
{
Usage(options);
return;
}
else if (arguments.Count == maxAllowedArguments)
{
ApplicationName = arguments[applicationNameIndex];
IotHubOwnerConnectionString = arguments[connectionStringIndex];
}
else if (arguments.Count == maxAllowedArguments - 1)
{
ApplicationName = arguments[applicationNameIndex];
}
else
{
ApplicationName = Utils.GetHostName();
}
WriteLine("Publisher is starting up...");
// Shutdown token sources.
ShutdownTokenSource = new CancellationTokenSource();
// init OPC configuration and tracing
OpcStackConfiguration opcStackConfiguration = new OpcStackConfiguration();
await opcStackConfiguration.ConfigureAsync();
_opcTraceInitialized = true;
// log shopfloor domain setting
if (string.IsNullOrEmpty(ShopfloorDomain))
{
Trace("There is no shopfloor domain configured.");
}
else
{
Trace($"Publisher is in shopfloor domain '{ShopfloorDomain}'.");
}
// Set certificate validator.
if (OpcPublisherAutoTrustServerCerts)
{
Trace("Publisher configured to auto trust server certificates of the servers it is connecting to.");
PublisherOpcApplicationConfiguration.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(CertificateValidator_AutoTrustServerCerts);
}
else
{
Trace("Publisher configured to not auto trust server certificates. When connecting to servers, you need to manually copy the rejected server certs to the trusted store to trust them.");
PublisherOpcApplicationConfiguration.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(CertificateValidator_Default);
}
// start our server interface
try
{
Trace($"Starting server on endpoint {PublisherOpcApplicationConfiguration.ServerConfiguration.BaseAddresses[0].ToString()} ...");
_publisherServer = new PublisherServer();
_publisherServer.Start(PublisherOpcApplicationConfiguration);
Trace("Server started.");
}
catch (Exception e)
{
Trace(e, "Failed to start Publisher OPC UA server.");
Trace("exiting...");
return;
}
// read telemetry configuration file
PublisherTelemetryConfiguration.Init();
if (!await PublisherTelemetryConfiguration.ReadConfigAsync())
{
return;
}
// read node configuration file
PublisherNodeConfiguration.Init();
if (!await PublisherNodeConfiguration.ReadConfigAsync())
{
return;
}
// initialize and start IoTHub messaging
IotHubCommunication = new IotHubMessaging();
if (!await IotHubCommunication.InitAsync())
{
return;
}
if (!await PublisherNodeConfiguration.CreateOpcPublishingDataAsync())
{
return;
}
// kick off the task to maintain all sessions
Task sessionConnectorAsync = Task.Run(async () => await SessionConnectorAsync(ShutdownTokenSource.Token));
// Show notification on session events
_publisherServer.CurrentInstance.SessionManager.SessionActivated += ServerEventStatus;
_publisherServer.CurrentInstance.SessionManager.SessionClosing += ServerEventStatus;
_publisherServer.CurrentInstance.SessionManager.SessionCreated += ServerEventStatus;
// initialize publisher diagnostics
Diagnostics.Init();
// stop on user request
WriteLine("");
WriteLine("");
if (_noShutdown)
{
// wait forever if asked to do so
WriteLine("Publisher is running infinite...");
await Task.Delay(Timeout.Infinite);
}
else
{
WriteLine("Publisher is running. Press any key to quit.");
try
{
ReadKey(true);
}
catch
{
// wait forever if there is no console
WriteLine("There is no console. Publisher is running infinite...");
await Task.Delay(Timeout.Infinite);
}
}
WriteLine("");
WriteLine("");
ShutdownTokenSource.Cancel();
WriteLine("Publisher is shutting down...");
// Wait for session connector completion
await sessionConnectorAsync;
// stop the server
_publisherServer.Stop();
// Clean up Publisher sessions
await SessionShutdownAsync();
// shutdown the IoTHub messaging
await IotHubCommunication.ShutdownAsync();
IotHubCommunication = null;
// shutdown diagnostics
await ShutdownAsync();
// free resources
PublisherTelemetryConfiguration.Deinit();
PublisherNodeConfiguration.Deinit();
ShutdownTokenSource = null;
}
catch (Exception e)
{
if (_opcTraceInitialized)
{
Trace(e, e.StackTrace);
e = e.InnerException ?? null;
while (e != null)
{
Trace(e, e.StackTrace);
e = e.InnerException ?? null;
}
Trace("Publisher exiting... ");
}
else
{
WriteLine($"{DateTime.Now.ToString()}: {e.Message.ToString()}");
WriteLine($"{DateTime.Now.ToString()}: {e.StackTrace}");
e = e.InnerException ?? null;
while (e != null)
{
WriteLine($"{DateTime.Now.ToString()}: {e.Message.ToString()}");
WriteLine($"{DateTime.Now.ToString()}: {e.StackTrace}");
e = e.InnerException ?? null;
}
WriteLine($"{DateTime.Now.ToString()}: Publisher exiting...");
}
}
}