/// <summary>
/// Creates a new <see cref="ExternalStreamWrapper"/> with the given proxy object.
/// </summary>
/// <param name="proxy">Instance of a class derived from <see cref="MarshalByRefObject"/> that should
/// serve as a proxy for this <see cref="ExternalStreamWrapper"/>.</param>
/// <param name="scheme">The protocol portion of URL handled by this wrapper.</param>
protected ExternalStreamWrapper(IExternalStreamWrapper proxy, string scheme)
{
this.proxy = proxy;
this.scheme = scheme;
}
/// <summary>
/// Tries to find an <see cref="ExternalStreamWrapper"/> a given <paramref name="scheme"/>.
/// </summary>
/// <param name="scheme">The scheme portion of an URL.</param>
/// <returns>An <see cref="ExternalStreamWrapper"/> associated with the given <paramref name="scheme"/>
/// or <c>null</c> if the wrapper was not found.</returns>
public static ExternalStreamWrapper GetExternalWrapperByScheme(string scheme)
{
IExternalStreamWrapper proxy = Externals.GetStreamWrapper(scheme);
return(proxy == null ? null : new ExternalStreamWrapper(proxy, scheme));
}
