/// <summary>
/// Looks for changes in underlying repository and updates all SettingsBase (registered with this SettingsManager) objects with changed values
/// Respects all error handling settings;
/// </summary>
public void UpdateChangedSettings()
{
try
{
lock (SyncRoot)
{
if (ReaderExecuting != null)
{
ReaderExecuting.Invoke(this, new EventArgs());
}
var now = Now();
var settingsFromRepo = Repository.ReadSettings(GetCategoriesToRead(), _lastRead).ToNonNullArray();
if (settingsFromRepo.Length == 0)
{
return;
}
foreach (SettingsBase settings in AllSettings.Values)
{
var category = settings.Category;
var matchingSettings = settingsFromRepo.Where(s => s.Category == category);
SetProperties(settings, matchingSettings, ThrowPropertySetExceptionsOnPeriodicRead);
}
foreach (var f in settingsFromRepo.Where(s => s.Category == FlagsCategoryName))
{
if (SetFlag(f.Name, f.Value))
{
if (FlagChanged != null)
{
FlagChanged.Invoke(this, new PropertyChangedEventArgs(f.Name));
}
}
}
_lastRead = settingsFromRepo.Max(s => s.UpdatedAt);
//sets last read time to newest found setting
if (_lastRead > now) //last read time must not be greated than current time
{
_lastRead = now;
}
}
}
catch (Exception ex)
{
_periodicReaderErrors.FlushOld(Now());
if (PeriodicReaderError != null)
{
var args = new RepeatingErrorEventArgs()
{
Exception = ex,
IsRepeating = _periodicReaderErrors.Contains(ex.GetType().Name)
};
PeriodicReaderError.Invoke(this, args);
}
_periodicReaderErrors.Add(ex.GetType().Name);
}
}
public bool IsHandlerRegistered(EventHandler <FlagChangedEventArgs> handler)
{
return(FlagChanged != null && FlagChanged.GetInvocationList().Contains(handler));
}
