public Hashtable Validate()
{
string content = HttpContext.Current.Request.Form["content"];
string format = HttpContext.Current.Request.Form["format"];
if (content == null || content.Trim() == "" || format == null) {
HttpContext.Current.Response.Redirect("index.xpd");
throw new InvalidOperationException();
}
StringWriter output = new StringWriter();
RdfReader reader;
RdfWriter writer;
Hashtable response = new Hashtable();
response["InDocument"] = AddLineNumbers(content);
if (format == "xml") {
reader = new RdfXmlReader(new StringReader(content));
writer = new N3Writer(output);
response["InFormat"] = "RDF/XML";
response["OutFormat"] = "Notation 3";
} else if (format == "n3") {
reader = new N3Reader(new StringReader(content));
writer = new RdfXmlWriter(output);
response["OutFormat"] = "RDF/XML";
response["InFormat"] = "Notation 3";
} else {
throw new Exception("Invalid format.");
}
response["Validation"] = "Syntax validated OK.";
response["OutDocument"] = "";
response["Triples"] = "";
MemoryStore data = new MemoryStore();
try {
data.Import(reader);
} catch (Exception e) {
response["Validation"] = "Validation failed: " + e.Message + ".";
return response;
} finally {
if (reader.Warnings.Count > 0) {
response["Validation"] += " There were warnings: ";
foreach (string warning in reader.Warnings)
response["Validation"] += " " + warning + ".";
}
}
writer.Namespaces.AddFrom(reader.Namespaces);
try {
writer.Write(data);
writer.Close();
response["OutDocument"] = output.ToString();
} catch (Exception e) {
response["OutDocument"] = e.Message;
}
StringWriter triplesoutput = new StringWriter();
using (NTriplesWriter tripleswriter = new NTriplesWriter(triplesoutput)) {
tripleswriter.Write(data);
}
response["Triples"] = triplesoutput.ToString();
return response;
}
