/// <summary>
/// A sample for illustrating how a device should handle connection status updates.
/// </summary>
/// <param name="args">
/// Run with `--help` to see a list of required and optional parameters.
/// </param>
public static async Task <int> Main(string[] args)
{
// Parse application parameters
Parameters parameters = null;
ParserResult <Parameters> result = Parser.Default.ParseArguments <Parameters>(args)
.WithParsed(parsedParams =>
{
parameters = parsedParams;
})
.WithNotParsed(errors =>
{
Environment.Exit(1);
});
// Set up logging
ILoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddColorConsoleLogger(
new ColorConsoleLoggerConfiguration
{
MinLogLevel = LogLevel.Debug,
});
var logger = loggerFactory.CreateLogger <Program>();
const string SdkEventProviderPrefix = "Microsoft-Azure-";
// Instantiating this seems to do all we need for outputting SDK events to our console log
_ = new ConsoleEventListener(SdkEventProviderPrefix, logger);
// Run the sample
var sample = new DeviceReconnectionSample(parameters.GetConnectionStrings(), parameters.TransportType, logger);
await sample.RunSampleAsync();
logger.LogInformation("Done.");
return(0);
}
public static async Task Main(string[] args)
{
// Parse application parameters
Parameters parameters = null;
ParserResult <Parameters> result = Parser.Default.ParseArguments <Parameters>(args)
.WithParsed(parsedParams =>
{
parameters = parsedParams;
})
.WithNotParsed(errors =>
{
Environment.Exit(1);
});
// Set up logging
ILoggerFactory loggerFactory = new LoggerFactory();
loggerFactory.AddColorConsoleLogger(
new ColorConsoleLoggerConfiguration
{
MinLogLevel = LogLevel.Debug,
});
s_logger = loggerFactory.CreateLogger <Program>();
const string SdkEventProviderPrefix = "Microsoft-Azure-";
// Instantiating this seems to do all we need for outputting SDK events to our console log
_ = new ConsoleEventListener(SdkEventProviderPrefix, s_logger);
if (!parameters.Validate(s_logger))
{
throw new ArgumentException("Required parameters are not set. Please recheck required variables by using \"--help\"");
}
var runningTime = parameters.ApplicationRunningTime != null
? TimeSpan.FromSeconds((double)parameters.ApplicationRunningTime)
: Timeout.InfiniteTimeSpan;
s_logger.LogInformation("Press Control+C to quit the sample.");
using var cts = new CancellationTokenSource(runningTime);
Console.CancelKeyPress += (sender, eventArgs) =>
{
eventArgs.Cancel = true;
cts.Cancel();
s_logger.LogInformation("Sample execution cancellation requested; will exit.");
};
s_logger.LogDebug($"Set up the device client.");
using DeviceClient deviceClient = await SetupDeviceClientAsync(parameters, cts.Token);
var sample = new TemperatureControllerSample(deviceClient, s_logger);
await sample.PerformOperationsAsync(cts.Token);
// PerformOperationsAsync is designed to run until cancellation has been explicitly requested, either through
// cancellation token expiration or by Console.CancelKeyPress.
// As a result, by the time the control reaches the call to close the device client, the cancellation token source would
// have already had cancellation requested.
// Hence, if you want to pass a cancellation token to any subsequent calls, a new token needs to be generated.
// For device client APIs, you can also call them without a cancellation token, which will set a default
// cancellation timeout of 4 minutes: https://github.com/Azure/azure-iot-sdk-csharp/blob/64f6e9f24371bc40ab3ec7a8b8accbfb537f0fe1/iothub/device/src/InternalClient.cs#L1922
await deviceClient.CloseAsync();
}
