/// <inheritdoc />
public VersionResult?GetVersion(HttpContext context, RouteData routeData)
{
if (context.Request.Query.TryGetValue(ParameterName, out var values))
{
var versionString = values.ToString();
if (ParsingUtility.TryParseVersion(versionString, out var version))
{
return(new VersionResult(version));
}
}
return(null);
}
private static bool TryGetFacetVersion(StringSegment subType, out int version)
{
var facetSeparatorIndex = subType.IndexOf('.');
if (facetSeparatorIndex >= 0)
{
var facets = subType.Split(DotSeparator).Reverse();
foreach (var facet in facets)
{
if (ParsingUtility.TryParseVersion(facet, out version))
{
return(true);
}
}
}
version = 0;
return(false);
}
