/// <summary>
/// Retrieves a namespace from the register by seeking presence of its prefix.
/// If not found, and the EnablePrefixCCService configuration is true, it
/// tries to resolve the prefix with a lookup to prefix.cc service.
/// </summary>
public static RDFNamespace GetByPrefix(String prefix)
{
if (prefix != null && prefix.Trim() != String.Empty)
{
var result = Instance.Register.Find(ns => ns.Prefix.Equals(prefix.Trim(), StringComparison.Ordinal));
if (result == null && EnablePrefixCCService)
{
result = RDFModelUtilities.LookupPrefixCC(prefix.Trim(), 1);
}
return(result);
}
return(null);
}
/// <summary>
/// Retrieves a namespace from the register by seeking presence of its Uri.
/// If not found, and the EnablePrefixCCService configuration is true, it
/// tries to resolve the namespace with a reverse lookup to prefix.cc service.
/// </summary>
public static RDFNamespace GetByNamespace(String nSpace)
{
Uri tempNS = RDFModelUtilities.GetUriFromString(nSpace.Trim());
if (tempNS != null)
{
var result = Instance.Register.Find(ns => ns.Namespace.Equals(tempNS));
if (result == null && EnablePrefixCCService)
{
result = RDFModelUtilities.LookupPrefixCC(nSpace.Trim(), 2);
}
return(result);
}
return(null);
}
