/// <summary>
/// Initializes a new instance of the <see cref="TcpHealthListener"/> class.
/// </summary>
/// <param name="configuration">The key-value application configuration properties.</param>
/// <param name="tcpListenerOptions">The additional options to configure the TCP listener.</param>
/// <param name="healthService">The service to retrieve the current health of the application.</param>
/// <exception cref="ArgumentNullException">Thrown when the <paramref name="configuration"/>, <paramref name="tcpListenerOptions"/>, or <paramref name="healthService"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentException">Thrown when the <paramref name="tcpListenerOptions"/> doesn't have a filled-out value.</exception>
public TcpHealthListener(
IConfiguration configuration,
TcpHealthListenerOptions tcpListenerOptions,
HealthCheckService healthService)
: this(configuration, tcpListenerOptions, healthService, NullLogger <TcpHealthListener> .Instance)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="TcpHealthListener"/> class.
/// </summary>
/// <param name="configuration">The key-value application configuration properties.</param>
/// <param name="tcpListenerOptions">The additional options to configure the TCP listener.</param>
/// <param name="healthService">The service to retrieve the current health of the application.</param>
/// <param name="logger">The logging implementation to write diagnostic messages during the running of the TCP listener.</param>
/// <exception cref="ArgumentNullException">Thrown when the <paramref name="configuration"/>, <paramref name="tcpListenerOptions"/>, <paramref name="healthService"/>, or <paramref name="logger"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentException">Thrown when the <paramref name="tcpListenerOptions"/> doesn't have a filled-out value.</exception>
public TcpHealthListener(
IConfiguration configuration,
TcpHealthListenerOptions tcpListenerOptions,
HealthCheckService healthService,
ILogger <TcpHealthListener> logger)
{
Guard.NotNull(tcpListenerOptions, nameof(tcpListenerOptions), "Requires a set of TCP listener options to correctly run the TCP listener");
Guard.NotNull(healthService, nameof(healthService), "Requires a health service to retrieve the current health status of the application");
Guard.NotNull(logger, nameof(logger), "Requires a logger implementation to write diagnostic messages during the running of the TCP listener");
_tcpListenerOptions = tcpListenerOptions;
_healthService = healthService;
_logger = logger;
Port = GetTcpHealthPort(configuration, _tcpListenerOptions.TcpPortConfigurationKey);
_listener = new CustomTcpListener(IPAddress.Any, Port);
}