// PROTECTED CONSTRUCTORS ///////////////////////////////////////////
#region Constructors
protected ExtensibleObject()
{
this.ExtensionDictionary = new Lazy <ExtensionDictionary <T> >(() =>
{
var extensionOwner = this.ExtensionOwner;
var extensionDictionary = new ExtensionDictionary <T>(extensionOwner);
return(extensionDictionary);
}, LazyThreadSafetyMode.PublicationOnly);
}
public static void Add(MimeType mimeType, params string[] extensions)
{
if (!ExtensionDictionary.TryGetValue(mimeType, out var extensionSet))
{
extensionSet = new HashSet <string>();
ExtensionDictionary.Add(mimeType, extensionSet);
}
foreach (var extension in extensions)
{
extensionSet.Add(extension);
}
}
public static IEnumerable <string> All(MimeType mimeType)
{
return(ExtensionDictionary.TryGetValue(mimeType, out var extensionSet)
? extensionSet.ToList()
: new List <string>());
}
public static IEnumerable <MimeType> Get(string extension)
{
return(ExtensionDictionary.Where(pair => pair.Value.Contains(extension)).Select(pair => pair.Key));
}