/// <summary>
/// Initializes a new instance of the <see cref="HealthCheckNotifier"/> class.
/// </summary>
/// <param name="healthChecksSettings">The configuration for health check settings.</param>
/// <param name="healthChecks">The collection of healthchecks.</param>
/// <param name="notifications">The collection of healthcheck notification methods.</param>
/// <param name="runtimeState">Representation of the state of the Umbraco runtime.</param>
/// <param name="serverRegistrar">Provider of server registrations to the distributed cache.</param>
/// <param name="mainDom">Representation of the main application domain.</param>
/// <param name="scopeProvider">Provides scopes for database operations.</param>
/// <param name="logger">The typed logger.</param>
/// <param name="profilingLogger">The profiling logger.</param>
/// <param name="cronTabParser">Parser of crontab expressions.</param>
public HealthCheckNotifier(
IOptionsMonitor <HealthChecksSettings> healthChecksSettings,
HealthCheckCollection healthChecks,
HealthCheckNotificationMethodCollection notifications,
IRuntimeState runtimeState,
IServerRoleAccessor serverRegistrar,
IMainDom mainDom,
ICoreScopeProvider scopeProvider,
ILogger <HealthCheckNotifier> logger,
IProfilingLogger profilingLogger,
ICronTabParser cronTabParser)
: base(
logger,
healthChecksSettings.CurrentValue.Notification.Period,
healthChecksSettings.CurrentValue.GetNotificationDelay(cronTabParser, DateTime.Now, DefaultDelay))
{
_healthChecksSettings = healthChecksSettings.CurrentValue;
_healthChecks = healthChecks;
_notifications = notifications;
_runtimeState = runtimeState;
_serverRegistrar = serverRegistrar;
_mainDom = mainDom;
_scopeProvider = scopeProvider;
_logger = logger;
_profilingLogger = profilingLogger;
healthChecksSettings.OnChange(x =>
{
_healthChecksSettings = x;
ChangePeriod(x.Notification.Period);
});
}
public static TimeSpan GetNotificationDelay(this HealthChecksSettings settings, ICronTabParser cronTabParser, DateTime now, TimeSpan defaultDelay)
{
// If first run time not set, start with just small delay after application start.
var firstRunTime = settings.Notification.FirstRunTime;
if (string.IsNullOrEmpty(firstRunTime))
{
return(defaultDelay);
}
// Otherwise start at scheduled time according to cron expression, unless within the default delay period.
DateTime firstRunOccurance = cronTabParser.GetNextOccurrence(firstRunTime, now);
TimeSpan delay = firstRunOccurance - now;
return(delay < defaultDelay
? defaultDelay
: delay);
}
/// <summary> /// Initializes a new instance of the <see cref="HealthChecksSettingsValidator" /> class. /// </summary> /// <param name="cronTabParser">Helper for parsing crontab expressions.</param> public HealthChecksSettingsValidator(ICronTabParser cronTabParser) => _cronTabParser = cronTabParser;
