private void Start()
{
if (initialized)
{
return;
}
initialized = true;
if (doc == null)
{
doc = new XmlDocument();
}
doc.AppendChild(doc.CreateXmlDeclaration("1.0", null, null));
string rdfprefix = ns.GetPrefix(NS.RDF);
if (rdfprefix == null)
{
if (ns.GetNamespace("rdf") == null)
{
rdfprefix = "rdf";
ns.AddNamespace(NS.RDF, "rdf");
}
}
XmlElement root = doc.CreateElement(rdfprefix + ":RDF", NS.RDF);
foreach (string prefix in ns.GetPrefixes())
{
root.SetAttribute("xmlns:" + prefix, ns.GetNamespace(prefix));
}
if (BaseUri != null)
{
root.SetAttribute("xml:base", BaseUri);
}
doc.AppendChild(root);
}
public virtual string GetNamespace(string prefix)
{
string ret = (string)btoa[prefix];
if (ret != null)
{
return(ret);
}
if (parent != null)
{
return(parent.GetNamespace(prefix));
}
return(null);
}
private void WriteStatement2(string subj, string pred, string obj)
{
closed = false;
// Write the prefix directives at the beginning.
if (!hasWritten && ns != null && !(Format == Formats.NTriples))
{
foreach (string prefix in ns.GetPrefixes())
{
writer.Write("@prefix ");
writer.Write(prefix);
writer.Write(": <");
writer.Write(ns.GetNamespace(prefix));
writer.Write("> .\n");
}
}
// Repeated subject.
if (lastSubject != null && lastSubject == subj && !(Format == Formats.NTriples))
{
// Repeated predicate too.
if (lastPredicate != null && lastPredicate == pred)
{
writer.Write(",\n\t\t");
WriteThing(obj);
// Just a repeated subject.
}
else
{
writer.Write(";\n\t");
WriteThing(pred);
WriteThing(obj);
lastPredicate = pred;
}
// The subject became the object. Abbreviate with
// is...of notation (Notation3 format only).
}
else if (lastSubject != null && lastSubject == obj && (Format == Formats.Notation3))
{
writer.Write(";\n\tis ");
WriteThing(pred);
writer.Write("of ");
WriteThing(subj);
lastPredicate = null;
// Start a new statement.
}
else
{
if (hasWritten)
{
writer.Write(".\n");
}
WriteThing(subj);
WriteThing(pred);
WriteThing(obj);
lastSubject = subj;
lastPredicate = pred;
}
hasWritten = true;
}
/// <summary>
/// Gets the namespace with the specified prefix.
/// </summary>
/// <param name="prefix">The prefix.</param>
/// <returns>The namespace</returns>
public override string GetNamespace(string prefix)
{
return(m_OriginalNamespaceManager.GetNamespace(prefix));
}
