void AddDefaultNamespaces()
{
foreach (var item in DefaultNamespaces)
{
Namespaces.AddNamespace(item.Key, item.Value);
}
}
private Resource ResolveQName(string str, ParseContext context, Location loc)
{
int colon = str.IndexOf(":");
string prefix = str.Substring(0, colon);
if (prefix == "_")
{
Resource ret = (Resource)context.anonymous[str];
if (ret == null)
{
ret = new BNode(str.Substring(colon + 1));
context.anonymous[str] = ret;
}
return(ret);
}
else if (prefix == "" && context.namespaces.GetNamespace(prefix) == null)
{
return(GetResource(context, (BaseUri == null ? "#" : BaseUri) + str.Substring(colon + 1)));
}
else
{
string ns = context.namespaces.GetNamespace(prefix);
if (ns == null)
{
OnError("Prefix is undefined: " + str, loc);
}
if (prefix != "")
{
Namespaces.AddNamespace(ns, prefix);
}
return(GetResource(context, ns + str.Substring(colon + 1)));
}
}
private void LoadNamespaces()
{
// Move to the document element and load any namespace
// declarations on the node.
while (xml.Read())
{
if (xml.NodeType != XmlNodeType.Element)
{
continue;
}
if (xml.MoveToFirstAttribute())
{
do
{
if (xml.Prefix == "xmlns")
{
Namespaces.AddNamespace(xml.Value, xml.LocalName);
}
} while (xml.MoveToNextAttribute());
xml.MoveToElement();
}
break;
}
}
public string SetNamespace(string ns)
{
string?prefix = _namespaces.LookupPrefix(ns);
if (prefix == null || prefix.Length == 0)
{
prefix = "xg" + (_nextPrefix++).ToString(NumberFormatInfo.InvariantInfo);
Namespaces.AddNamespace(prefix, ns);
}
return(prefix);
}
public override void Add(Statement stmt)
{
string predicate = stmt.Predicate.Uri;
string prefix;
string localname;
// Fill in the namespaces with nice prefixes
if (MetadataStore.Namespaces.Normalize(predicate, out prefix, out localname))
{
if (prefix != null)
{
Namespaces.AddNamespace(predicate.Remove(predicate.Length - localname.Length, localname.Length), prefix);
}
}
base.Add(stmt);
}
/// <summary>
/// Trims out the SPARQL preamble (BASE and PREFIX definitions) from the command text
/// </summary>
/// <remarks>
/// This is done so the instance can be directly merged into another SparqlParameterizedString through the Append methods
/// </remarks>
private String TrimPreamble(String value)
{
int commandStart = 0;
foreach (Match preambleItem in PreambleCapturePattern.Matches(value))
{
if (preambleItem.Groups[1].Value.ToUpper().StartsWith("BASE"))
{
BaseUri = UriFactory.Create(preambleItem.Groups[3].Value);
Namespaces.AddNamespace("", BaseUri);
}
else
{
Namespaces.AddNamespace(preambleItem.Groups[2].Value, UriFactory.Create(preambleItem.Groups[3].Value));
}
commandStart = preambleItem.Index + preambleItem.Length;
}
return(value.Substring(commandStart));
}
private string CurNode()
{
if (xml.NamespaceURI == "")
{
OnWarning("Element node must be qualified (" + xml.Name + ")");
}
if (xml.Prefix != "")
{
Namespaces.AddNamespace(xml.NamespaceURI, xml.Prefix);
}
// This probably isn't quite right, but compensates
// for a corresponding hash issue in XmlWriter.
if (xml.NamespaceURI == "" && BaseUri == null)
{
return("#" + xml.LocalName);
}
return(CheckUri(xml.NamespaceURI + xml.LocalName));
}
private bool ParsePropertyAttributes(Entity entity)
{
bool foundAttrs = false;
if (!xml.MoveToFirstAttribute())
{
return(false);
}
do
{
// Propery attributes in the default namespace
// should be ignored.
if (xml.NamespaceURI == "")
{
continue;
}
string curnode = CurNode();
// rdf:type is interpreted with an entity object,
// not a literal object.
if (curnode == NS.RDF + "type")
{
storage.Add(new Statement(entity, rdfType, (Entity)xml.Value, Meta));
foundAttrs = true;
continue;
}
// Properties which are not recognized as property
// attributes and should be ignored.
if (IsRestrictedName(curnode))
{
continue;
}
if (IsDeprecatedName(curnode))
{
OnError(xml.Name + " is deprecated");
}
// Properties which are invalid as attributes.
if (curnode == NS.RDF + "li")
{
OnError("rdf:li is not a valid attribute");
}
if (curnode == NS.RDF + "aboutEach" || curnode == NS.RDF + "aboutEachPrefix")
{
OnError("rdf:aboutEach has been removed from the RDF spec");
}
// Unrecognized attributes in the xml namespace should be ignored.
if (xml.Prefix == "xml")
{
continue;
}
if (xml.Prefix == "xmlns")
{
continue;
}
if (curnode == "http://www.w3.org/2000/xmlns/xmlns")
{
continue;
}
// This is a literal property attribute.
string lang = xml.XmlLang != "" ? xml.XmlLang : null;
storage.Add(new Statement(entity, curnode,
new Literal(xml.Value, lang, null), Meta));
Namespaces.AddNamespace(xml.NamespaceURI, xml.Prefix);
foundAttrs = true;
} while (xml.MoveToNextAttribute());
xml.MoveToElement();
return(foundAttrs);
}
public void AddDomainNamespace(string prefix, string namespaceUri)
{
Namespaces.AddNamespace(prefix, namespaceUri);
}
public void SetTypedDomainNamespace(string prefix, string namespaceUri)
{
Namespaces.AddNamespace(prefix, namespaceUri);
TypedDomainNamespace = namespaceUri;
}
public void SetMetricNamespace(string prefix, string namespaceUri)
{
Namespaces.AddNamespace(prefix, namespaceUri);
FactNamespace = namespaceUri;
}
public void SetDimensionNamespace(string prefix, string namespaceUri)
{
Namespaces.AddNamespace(prefix, namespaceUri);
DimensionNamespace = namespaceUri;
}
