/// <summary>
/// Initialises the MIME Type definitions
/// </summary>
private static void Init()
{
if (!_init)
{
_mimeTypes = new List<MimeTypeDefinition>();
//Define RDF/XML
_mimeTypes.Add(new MimeTypeDefinition("RDF/XML", W3CFormatsNamespace + "RDF_XML", RdfXml, new String[] { DefaultRdfXmlExtension, "owl" }, typeof(RdfXmlParser), null, null, typeof(RdfXmlWriter), null, null));
//Define NTriples
MimeTypeDefinition ntriples = new MimeTypeDefinition("NTriples", W3CFormatsNamespace + "N-Triples", NTriples, new String[] { DefaultNTriplesExtension }, typeof(NTriplesParser), null, null, typeof(NTriplesWriter), null, null);
#if !SILVERLIGHT
ntriples.Encoding = Encoding.ASCII;
#endif
_mimeTypes.Add(ntriples);
//Define Turtle
_mimeTypes.Add(new MimeTypeDefinition("Turtle", W3CFormatsNamespace + "Turtle", Turtle, new String[] { DefaultTurtleExtension }, typeof(TurtleParser), null, null, typeof(CompressingTurtleWriter), null, null));
//Define Notation 3
_mimeTypes.Add(new MimeTypeDefinition("Notation 3", W3CFormatsNamespace + "N3", Notation3, new String[] { DefaultNotation3Extension }, typeof(Notation3Parser), null, null, typeof(Notation3Writer), null, null));
//Define NQuads
_mimeTypes.Add(new MimeTypeDefinition("NQuads", NQuads, new String[] { DefaultNQuadsExtension }, null, typeof(NQuadsParser), null, null, typeof(NQuadsWriter), null));
//Define TriG
_mimeTypes.Add(new MimeTypeDefinition("TriG", TriG, new String[] { DefaultTriGExtension }, null, typeof(TriGParser), null, null, typeof(TriGWriter), null));
//Define TriX
_mimeTypes.Add(new MimeTypeDefinition("TriX", TriX, new String[] { DefaultTriXExtension }, null, typeof(TriXParser), null, null, typeof(TriXWriter), null));
//Define SPARQL Results XML
_mimeTypes.Add(new MimeTypeDefinition("SPARQL Results XML", W3CFormatsNamespace + "SPARQL_Results_XML", SparqlXml, new String[] { DefaultSparqlXmlExtension }, null, null, typeof(SparqlXmlParser), null, null, typeof(SparqlXmlWriter)));
//Define SPARQL Results JSON
_mimeTypes.Add(new MimeTypeDefinition("SPARQL Results JSON", W3CFormatsNamespace + "SPARQL_Results_JSON", SparqlJson, new String[] { DefaultSparqlJsonExtension, DefaultJsonExtension }, null, null, typeof(SparqlJsonParser), null, null, typeof(SparqlJsonWriter)));
//Define RDF/JSON - include SPARQL Parsers to support servers that send back incorrect MIME Type for SPARQL JSON Results
//We define this after SPARQL Results JSON to ensure we favour the correct MIME type for it
_mimeTypes.Add(new MimeTypeDefinition("RDF/JSON", Json, new String[] { DefaultRdfJsonExtension, DefaultJsonExtension }, typeof(RdfJsonParser), null, typeof(SparqlJsonParser), typeof(RdfJsonWriter), null, typeof(SparqlJsonWriter)));
//Define CSV
_mimeTypes.Add(new MimeTypeDefinition("CSV", Csv, new String[] { DefaultCsvExtension }, null, null, null, typeof(CsvWriter), typeof(CsvStoreWriter), typeof(SparqlCsvWriter)));
//Define TSV
_mimeTypes.Add(new MimeTypeDefinition("TSV", Tsv, new String[] { DefaultTsvExtension }, null, null, typeof(SparqlTsvParser), typeof(TsvWriter), typeof(TsvStoreWriter), typeof(SparqlTsvWriter)));
//Define HTML
_mimeTypes.Add(new MimeTypeDefinition("HTML", W3CFormatsNamespace + "RDFa", Html, new String[] { DefaultHtmlExtension, DefaultXHtmlExtension, ".htm" }, typeof(RdfAParser), null, null, typeof(HtmlWriter), null, typeof(SparqlHtmlWriter)));
//Define GraphViz DOT
_mimeTypes.Add(new MimeTypeDefinition("GraphViz DOT", new String[] { "text/vnd.graphviz" }, new String[] { ".gv", ".dot" }, null, null, null, typeof(GraphVizWriter), null, null));
//Define SPARQL Query
MimeTypeDefinition qDef = new MimeTypeDefinition("SPARQL Query", new String[] { "application/sparql-query" }, new String[] { ".rq" });
qDef.SetObjectParserType<SparqlQuery>(typeof(SparqlQueryParser));
_mimeTypes.Add(qDef);
//Define SPARQL Update
MimeTypeDefinition uDef = new MimeTypeDefinition("SPARQL Update", new String[] { "application/sparql-update" }, new String[] { ".ru" });
uDef.SetObjectParserType<SparqlUpdateCommandSet>(typeof(SparqlUpdateParser));
_mimeTypes.Add(uDef);
_init = true;
}
}
/// <summary>
/// Adds a new MIME Type Definition
/// </summary>
/// <param name="definition">MIME Type Definition</param>
public static void AddDefinition(MimeTypeDefinition definition)
{
if (!_init) Init();
if (definition == null) throw new ArgumentNullException("definition");
_mimeTypes.Add(definition);
}
/// <summary>
/// Registers a writer as the default SPARQL Results Writer for all the given MIME types and updates relevant definitions to include the MIME types and file extensions
/// </summary>
/// <param name="writer">SPARQL Results Writer</param>
/// <param name="mimeTypes">MIME Types</param>
/// <param name="fileExtensions">File Extensions</param>
public static void RegisterWriter(ISparqlResultsWriter writer, IEnumerable<String> mimeTypes, IEnumerable<String> fileExtensions)
{
if (!_init) Init();
if (!mimeTypes.Any()) throw new RdfException("Cannot register a writer without specifying at least 1 MIME Type");
//Get any existing defintions that are to be altered
IEnumerable<MimeTypeDefinition> existing = GetDefinitions(mimeTypes);
foreach (MimeTypeDefinition def in existing)
{
foreach (String type in mimeTypes)
{
def.AddMimeType(type);
}
foreach (String ext in fileExtensions)
{
def.AddFileExtension(ext);
}
def.SparqlResultsWriterType = writer.GetType();
}
//Create any new defintions
IEnumerable<String> newTypes = mimeTypes.Where(t => !GetDefinitions(t).Any());
if (newTypes.Any())
{
MimeTypeDefinition newDef = new MimeTypeDefinition(String.Empty, newTypes, fileExtensions);
newDef.SparqlResultsWriterType = writer.GetType();
AddDefinition(newDef);
}
}
/// <summary>
/// Initialises the MIME Type definitions
/// </summary>
private static void Init()
{
if (!_init)
{
_mimeTypes = new List<MimeTypeDefinition>();
//Define RDF/XML
_mimeTypes.Add(new MimeTypeDefinition("RDF/XML", W3CFormatsNamespace + "RDF_XML", RdfXml, new String[] { DefaultRdfXmlExtension, "owl" }, typeof(RdfXmlParser), null, null, typeof(RdfXmlWriter), null, null));
//Define NTriples
MimeTypeDefinition ntriples = new MimeTypeDefinition("NTriples", W3CFormatsNamespace + "N-Triples", NTriples, new String[] { DefaultNTriplesExtension }, typeof(NTriplesParser), null, null, typeof(NTriplesWriter), null, null);
#if !SILVERLIGHT
ntriples.Encoding = Encoding.ASCII;
#endif
_mimeTypes.Add(ntriples);
//Define Turtle
_mimeTypes.Add(new MimeTypeDefinition("Turtle", W3CFormatsNamespace + "Turtle", Turtle, new String[] { DefaultTurtleExtension }, typeof(TurtleParser), null, null, typeof(CompressingTurtleWriter), null, null));
//Define Notation 3
_mimeTypes.Add(new MimeTypeDefinition("Notation 3", W3CFormatsNamespace + "N3", Notation3, new String[] { DefaultNotation3Extension }, typeof(Notation3Parser), null, null, typeof(Notation3Writer), null, null));
//Define NQuads
_mimeTypes.Add(new MimeTypeDefinition("NQuads", NQuads, new String[] { DefaultNQuadsExtension }, null, typeof(NQuadsParser), null, null, typeof(NQuadsWriter), null));
//Define TriG
_mimeTypes.Add(new MimeTypeDefinition("TriG", TriG, new String[] { DefaultTriGExtension }, null, typeof(TriGParser), null, null, typeof(TriGWriter), null));
//Define TriX
_mimeTypes.Add(new MimeTypeDefinition("TriX", TriX, new String[] { DefaultTriXExtension }, null, typeof(TriXParser), null, null, typeof(TriXWriter), null));
//Define SPARQL Results XML
_mimeTypes.Add(new MimeTypeDefinition("SPARQL Results XML", W3CFormatsNamespace + "SPARQL_Results_XML", SparqlXml, new String[] { DefaultSparqlXmlExtension }, null, null, typeof(SparqlXmlParser), null, null, typeof(SparqlXmlWriter)));
//Define SPARQL Results JSON
_mimeTypes.Add(new MimeTypeDefinition("SPARQL Results JSON", W3CFormatsNamespace + "SPARQL_Results_JSON", SparqlJson, new String[] { DefaultSparqlJsonExtension, DefaultJsonExtension }, null, null, typeof(SparqlJsonParser), null, null, typeof(SparqlJsonWriter)));
//Define RDF/JSON - include SPARQL Parsers to support servers that send back incorrect MIME Type for SPARQL JSON Results
//We define this after SPARQL Results JSON to ensure we favour the correct MIME type for it
_mimeTypes.Add(new MimeTypeDefinition("RDF/JSON", Json, new String[] { DefaultJsonExtension }, typeof(RdfJsonParser), null, typeof(SparqlJsonParser), typeof(RdfJsonWriter), null, typeof(SparqlJsonWriter)));
//Define CSV
_mimeTypes.Add(new MimeTypeDefinition("CSV", Csv, new String[] { DefaultCsvExtension }, null, null, null, typeof(CsvWriter), typeof(CsvStoreWriter), typeof(SparqlCsvWriter)));
//Define TSV
_mimeTypes.Add(new MimeTypeDefinition("TSV", Tsv, new String[] { DefaultTsvExtension }, null, null, null, typeof(TsvWriter), typeof(TsvStoreWriter), typeof(SparqlTsvWriter)));
//Define HTML
_mimeTypes.Add(new MimeTypeDefinition("HTML", W3CFormatsNamespace + "RDFa", Html, new String[] { DefaultHtmlExtension, DefaultXHtmlExtension, ".htm" }, typeof(RdfAParser), null, null, typeof(HtmlWriter), null, typeof(SparqlHtmlWriter)));
//Q: Define SPARQL Query?
_init = true;
}
}