/// <summary>
/// Extracts the listening URI from a binding context.
/// </summary>
/// <param name="context">The <see cref="BindingContext" />.</param>
/// <returns>The <see cref="Uri" />.</returns>
/// <exception cref="ArgumentNullException">Thrown if BindingContext.ListenUriBaseAddress is not specified.</exception>
/// <exception cref="ArgumentException">Thrown if the URI does not have a valid LillTek URI scheme.</exception>
protected Uri GetListenUri(BindingContext context)
{
Uri uri;
Uri baseAddress;
string relativeAddress;
baseAddress = context.ListenUriBaseAddress;
relativeAddress = context.ListenUriRelativeAddress;
if (baseAddress == null)
{
if (context.ListenUriMode == ListenUriMode.Unique)
{
baseAddress = ServiceModelHelper.CreateUniqueUri();
}
else
{
throw new ArgumentNullException("BindingContext.ListenUriBaseAddress");
}
}
if (string.IsNullOrWhiteSpace(relativeAddress))
{
uri = baseAddress;
}
else
{
UriBuilder ub = new UriBuilder(baseAddress);
if (!ub.Path.EndsWith("/"))
{
ub.Path += "/";
}
uri = new Uri(ub.Uri, relativeAddress);
}
// Verify that the URI scheme is a valid LillTek scheme.
switch (uri.Scheme.ToLowerInvariant())
{
case "lilltek.logical":
case "lilltek.abstract":
return(uri); // OK
default:
throw new ArgumentException(string.Format("Invalid LillTek Messaging WCF Transport scheme [{0}].", uri.Scheme), "BindingContext.ListenUriBaseAddress");
}
}
