/// <summary>
/// Register the specified key-value to be refreshed when the configuration provider's <see cref="IConfigurationRefresher"/> triggers a refresh.
/// The <see cref="IConfigurationRefresher"/> instance can be obtained by calling <see cref="AzureAppConfigurationOptions.GetRefresher()"/>.
/// </summary>
/// <param name="key">Key of the key-value.</param>
/// <param name="label">Label of the key-value.</param>
/// <param name="refreshAll">If true, a change in the value of this key refreshes all key-values being used by the configuration provider.</param>
public AzureAppConfigurationRefreshOptions Register(string key, string label = LabelFilter.Null, bool refreshAll = false)
{
RefreshRegistrations[key] = new KeyValueWatcher
{
Key = key,
Label = label,
RefreshAll = refreshAll
};
return(this);
}
private void UpdateCacheExpirationTime(KeyValueWatcher changeWatcher, bool success)
{
TimeSpan cacheExpirationTime;
if (success)
{
changeWatcher.RefreshAttempts = 0;
cacheExpirationTime = changeWatcher.CacheExpirationInterval;
}
else
{
if (changeWatcher.RefreshAttempts < int.MaxValue)
{
changeWatcher.RefreshAttempts++;
}
cacheExpirationTime = changeWatcher.CacheExpirationInterval.CalculateBackoffTime(changeWatcher.RefreshAttempts);
}
changeWatcher.CacheExpires = DateTimeOffset.UtcNow.Add(cacheExpirationTime);
}
