/// <summary>
/// Gets or creates the <see cref="KeyedNavigationSource"/> with the default key. A <see cref="NavigationSourceContainer"/> is created if the <see cref="AllNavigationSources"/> collection does not contain the source name.
/// </summary>
/// <param name="sourceName">The source name</param>
/// <returns>The navigation source</returns>
public static NavigationSource CreateDefaultNavigationSource(string sourceName)
{
if (sourceName == null)
{
throw new ArgumentNullException(nameof(sourceName));
}
if (allNavigationSources.TryGetValue(sourceName, out NavigationSourceContainer navigationSourceContainer))
{
var navigationSource = navigationSourceContainer.NavigationSources.FirstOrDefault(n => n is KeyedNavigationSource && ((KeyedNavigationSource)n).Key == DefaultKeyedNavigationSourceKey);
if (navigationSource != null)
{
throw new InvalidOperationException("The navigation source is already created");
}
else
{
var defaultNavigationSource = new KeyedNavigationSource(DefaultKeyedNavigationSourceKey);
navigationSourceContainer.Register(defaultNavigationSource);
allNavigationSources[sourceName] = navigationSourceContainer;
return(defaultNavigationSource);
}
}
else
{
navigationSourceContainer = new NavigationSourceContainer();
var defaultNavigationSource = new KeyedNavigationSource(DefaultKeyedNavigationSourceKey);
navigationSourceContainer.Register(defaultNavigationSource);
allNavigationSources[sourceName] = navigationSourceContainer;
return(defaultNavigationSource);
}
}
/// <summary>
/// Adds the <see cref="NavigationSource"/>. The <see cref="NavigationSourceContainer"/> is created if the <see cref="AllNavigationSources"/> does not contain the source name.
/// </summary>
/// <param name="sourceName">The source name</param>
/// <param name="navigationSource">The navigation source</param>
public static void AddNavigationSource(string sourceName, NavigationSource navigationSource)
{
if (sourceName == null)
{
throw new ArgumentNullException(nameof(sourceName));
}
if (navigationSource == null)
{
throw new ArgumentNullException(nameof(navigationSource));
}
if (allNavigationSources.TryGetValue(sourceName, out NavigationSourceContainer navigationSourceContainer))
{
navigationSourceContainer.Register(navigationSource);
}
else
{
navigationSourceContainer = new NavigationSourceContainer();
navigationSourceContainer.Register(navigationSource);
allNavigationSources[sourceName] = navigationSourceContainer;
}
}