public void Add(Enum key)
{
var logger = ObjectFactory.GetInstance<Logger>();
if (key == null)
{
logger.Error("[ViewModels].[Application].[NotificationSet].[Add] throwing exception ([key] == null).");
throw new ArgumentNullException("key");
}
if (notifications.Contains(key))
{
logger.Error("[ViewModels].[Application].[NotificationSet].[Add] throwing exception ([notifications] already contains [key]).");
throw new ArgumentException("NotificationSet already contains this notification.", "key");
}
var attribute = key.TryGetAttribute<NotificationAttribute>();
if (attribute == null)
{
logger.Error("[ViewModels].[Application].[NotificationSet].[Add] throwing exception ([attribute] == null).");
throw new ArgumentException("Item does not has NotificationAttribute.", "key");
}
notifications.Add(key);
}
public bool TryAdd(Enum key)
{
var result = false;
if (key != null && !notifications.Contains(key))
{
var attribute = key.TryGetAttribute<NotificationAttribute>();
if (attribute != null)
{
notifications.Add(key);
result = true;
}
}
return result;
}
public NotificationItem TryGet(Enum key)
{
NotificationItem result = null;
if (key != null && notifications.Contains(key))
{
var attribute = key.TryGetAttribute<NotificationAttribute>();
if (attribute != null)
{
result = new NotificationItem(attribute.Message, attribute.Type);
}
}
return result;
}
public NotificationItem Get(Enum key)
{
var logger = ObjectFactory.GetInstance<Logger>();
if (key == null)
{
logger.Error("[ViewModels].[Application].[NotificationSet].[Get] throwing exception ([key] == null).");
throw new ArgumentNullException("key");
}
if (!notifications.Contains(key))
{
logger.Error("[ViewModels].[Application].[NotificationSet].[Get] throwing exception ([notifications] does not contains [key]).");
throw new ArgumentException("NotificationSet does not contains this notification.", "key");
}
var attribute = key.TryGetAttribute<NotificationAttribute>();
if (attribute == null)
{
logger.Error("[ViewModels].[Application].[NotificationSet].[Get] throwing exception ([attribute] == null).");
throw new ArgumentException("Item does not has NotificationAttribute.", "key");
}
return new NotificationItem(attribute.Message, attribute.Type);
}