protected virtual void RaiseChangeEvent(IProperty property, IPropertyChangeEvent @event)
{
MethodInfo raiseChangeEventMethod = property.GetType()
.GetMethod("RaiseChangeEvent", BindingFlags.Instance | BindingFlags.NonPublic);
raiseChangeEventMethod.Invoke(property, new object[] { @event });
}
protected virtual void OnSourceChange(object source, IConfigurationSourceChangeEvent sourceEvent)
{
lock (_propertiesLock)
{
foreach (IProperty p in _properties.Values)
{
object oldValue = p.Value;
Tuple <object, IConfigurationSource> valueSource = DoGetPropertyValue(p.Config);
if (p.Config.IsStatic)
{
string message = string.Format("ignore dynamic change for static property, "
+ "dynamic change for static property will be applied when app restart, "
+ "static: {0}, dynamic: {1}, property: {2}",
oldValue, valueSource.Item1, p.Config.Key);
Logger.Warn(message);
return;
}
if (valueSource.Item1 == null && p.Config.IsRequired)
{
string message = string.Format("ignore dynamic change for required property, "
+ "required property cannot be changed to None, "
+ "now keep its current value, you should fix the invalid change at once, "
+ "or app will panic when next app restart, property: {0}", p.Config.Key);
Logger.Error(message);
return;
}
if (p.Config.ValueComparator.Compare(oldValue, valueSource.Item1) == 0)
{
continue;
}
UpdateProperty(p, valueSource.Item1, valueSource.Item2);
IPropertyChangeEvent @event = NewPropertyChangeEvent(p, oldValue, valueSource.Item1);
_config.TaskExecutor(() => RaiseChangeEvent(p, @event));
_config.TaskExecutor(() => RaiseChangeEvent(@event));
}
}
}
protected virtual void OnSourceChange(object source, IConfigurationSourceChangeEvent sourceEvent)
{
lock (_propertiesLock)
{
foreach (IProperty p in _properties.Values)
{
object oldValue = p.Value;
object newValue = GetPropertyValue(p.Config);
if (Object.Equals(oldValue, newValue))
{
continue;
}
SetPropertyValue(p, newValue);
IPropertyChangeEvent @event = NewPropertyChangeEvent(p, oldValue, newValue);
_config.TaskExecutor(() => RaiseChangeEvent(p, @event));
_config.TaskExecutor(() => RaiseChangeEvent(@event));
}
}
}
protected virtual void RaiseChangeEvent(IPropertyChangeEvent @event)
{
if (_changeListeners == null)
{
return;
}
lock (this)
{
_changeListeners.ForEach(l =>
{
try
{
l(@event.Property, @event);
}
catch (Exception e)
{
Logger.Error(e, "property change listener failed to run");
}
});
}
}