/// <summary>
/// The constructor to create a new ProxyClient
/// </summary>
/// <param name="serviceClient">The ServiceClient used to connect to the Azure IoT Hub</param>
/// <param name="settings">The ProxyClientSettings to configure the proxy client</param>
/// <param name="logger">The ILogger instance to perform application logging</param>
public ProxyClient(ServiceClient serviceClient, ProxyClientSettings settings, ILogger <ProxyClient> logger)
{
this.serviceClient = serviceClient ?? throw new ArgumentNullException(nameof(serviceClient));
this.logger = logger ?? throw new ArgumentNullException(nameof(logger));
this.settings = settings ?? throw new ArgumentNullException(nameof(settings));
if (string.IsNullOrEmpty(settings.DeviceId))
{
throw new ArgumentException("DeviceId must not be null or empty", nameof(settings.DeviceId));
}
if (settings.BufferSize < 8192)
{
throw new ArgumentException("BufferSize must not be less than 8192 bytes", nameof(settings.BufferSize));
}
if (settings.BufferSize > 65536)
{
throw new ArgumentException("BufferSize must not be greater than 65536 bytes", nameof(settings.BufferSize));
}
}
/// <summary>
/// Configures and runs the proxy
/// </summary>
/// <param name="options">The parsed CLI arguments</param>
/// <param name="cancellationToken">Token used for cancelling this operation</param>
/// <returns>An awaitable async task</returns>
private static async Task RunAsync(CommandLineOptions options, CancellationToken cancellationToken)
{
// Creating proxy settings instance
var settings = new ProxyClientSettings
{
DeviceId = options.DeviceId,
LocalPort = options.Port,
BufferSize = options.BufferSize
};
// Create typed logger instance (usually done by DI)
var logger = CommandLineLoggerFactory.CreateLogger <ProxyClient>(options.Verbosity);
// Initializing the ServiceClient instance used to connect to the Azure IoT Hub
using var serviceClient = ServiceClient.CreateFromConnectionString(options.ConnectionString, TransportType.Amqp);
// Creating ProxyClient instance
var proxyClient = new ProxyClient(serviceClient, settings, logger);
// Starting the proxy client
await proxyClient.ConnectProxyAsync(cancellationToken);
}
