///// <summary>
///// Gets the list of user wrapper schemes.
///// </summary>
///// <returns></returns>
//public static ICollection<string> GetUserWrapperSchemes()
//{
// if (UserWrappers == null)
// return Core.Utilities.ArrayUtils.EmptyStrings;
// return UserWrappers.Keys;
//}
/// <summary>
/// Search the lists of registered StreamWrappers to find the
/// appropriate wrapper for a given scheme. When the scheme
/// is empty, the FileStreamWrapper is returned.
/// </summary>
/// <param name="ctx">Current runtime context.</param>
/// <param name="scheme">The scheme portion of an URL.</param>
/// <returns>A StreamWrapper associated with the given scheme.</returns>
internal static StreamWrapper GetWrapperInternal(Context ctx, string scheme)
{
StreamWrapper result;
// Note: FileStreamWrapper is returned both for "file" and for "".
if (string.IsNullOrEmpty(scheme))
{
scheme = FileStreamWrapper.scheme;
}
// First search the system wrappers (always at least an empty Hashtable)
if (!SystemStreamWrappers.TryGetValue(scheme, out result))
{
// Then look if the wrapper is implemented but not instantiated
switch (scheme)
{
case FileStreamWrapper.scheme:
return((StreamWrapper)(SystemStreamWrappers[scheme] = new FileStreamWrapper()));
//case HttpStreamWrapper.scheme:
// return (StreamWrapper)(SystemStreamWrappers[scheme] = new HttpStreamWrapper());
//case InputOutputStreamWrapper.scheme:
// return (StreamWrapper)(SystemStreamWrappers[scheme] = new InputOutputStreamWrapper());
}
//// Next search the user wrappers (if present)
//if (UserWrappers != null)
//{
// UserWrappers.TryGetValue(scheme, out result);
//}
}
//
return(result); // can be null
}
///// <summary>
///// Gets the list of user wrapper schemes.
///// </summary>
///// <returns></returns>
//public static ICollection<string> GetUserWrapperSchemes()
//{
// if (UserWrappers == null)
// return Core.Utilities.ArrayUtils.EmptyStrings;
// return UserWrappers.Keys;
//}
/// <summary>
/// Search the lists of registered StreamWrappers to find the
/// appropriate wrapper for a given scheme. When the scheme
/// is empty, the FileStreamWrapper is returned.
/// </summary>
/// <param name="ctx">Current runtime context.</param>
/// <param name="scheme">The scheme portion of an URL.</param>
/// <returns>A StreamWrapper associated with the given scheme.</returns>
internal static StreamWrapper GetWrapperInternal(Context ctx, string scheme)
{
StreamWrapper result;
// Note: FileStreamWrapper is returned both for "file" and for "".
if (string.IsNullOrEmpty(scheme))
{
scheme = FileStreamWrapper.scheme;
}
// First search the system wrappers (always at least an empty Hashtable)
if (!SystemStreamWrappers.TryGetValue(scheme, out result))
{
// Then look if the wrapper is implemented but not instantiated
switch (scheme)
{
case FileStreamWrapper.scheme:
return (StreamWrapper)(SystemStreamWrappers[scheme] = new FileStreamWrapper());
//case HttpStreamWrapper.scheme:
// return (StreamWrapper)(SystemStreamWrappers[scheme] = new HttpStreamWrapper());
//case InputOutputStreamWrapper.scheme:
// return (StreamWrapper)(SystemStreamWrappers[scheme] = new InputOutputStreamWrapper());
}
//// Next search the user wrappers (if present)
//if (UserWrappers != null)
//{
// UserWrappers.TryGetValue(scheme, out result);
//}
}
//
return result; // can be null
}