public void ParsingN3VariableContexts()
{
String prefixes = "@prefix rdf: <" + NamespaceMapper.RDF + ">. @prefix rdfs: <" + NamespaceMapper.RDFS + ">.";
List<String> tests = new List<string>()
{
prefixes + "@forAll :x :type . { :x a :type } => {:x rdfs:label \"This has a type\" } .",
prefixes + "@forSome :x :type . { :x a :type } => {:x rdfs:label \"This has a type\" } .",
prefixes + "@forAll :h . @forSome :g . :g :loves :h .",
prefixes + "@forSome :h . @forAll :g . :g :loves :h .",
prefixes + "{@forSome :a . :Joe :home :a } a :Formula . :Joe :phone \"555-1212\" ."
};
Notation3Parser parser = new Notation3Parser();
Notation3Writer writer = new Notation3Writer();
foreach (String test in tests)
{
Graph g = new Graph();
g.BaseUri = new Uri("http://example.org/n3rules");
StringParser.Parse(g, test, parser);
Console.WriteLine(StringWriter.Write(g, writer));
Console.WriteLine();
}
}
/// <summary>
/// Internal Method which performs multi-threaded writing of data
/// </summary>
private void SaveGraphs(FolderStoreWriterContext context)
{
//Create the relevant Writer
IRdfWriter writer;
switch (context.Format)
{
case FolderStoreFormat.Turtle:
writer = new TurtleWriter();
break;
case FolderStoreFormat.Notation3:
writer = new Notation3Writer();
break;
case FolderStoreFormat.RdfXml:
#if !NO_XMLDOM
writer = new FastRdfXmlWriter();
#else
writer = new RdfXmlWriter();
#endif
break;
default:
writer = new TurtleWriter();
break;
}
try
{
Uri u = context.GetNextURI();
while (u != null)
{
//Get the Graph from the Store
IGraph g = context.Store.Graphs[u];
//Write to Disk
String destFile = Path.Combine(context.Folder, u.GetSha256Hash());
switch (context.Format)
{
case FolderStoreFormat.Turtle:
destFile += ".ttl";
break;
case FolderStoreFormat.Notation3:
destFile += ".n3";
break;
case FolderStoreFormat.RdfXml:
destFile += ".rdf";
break;
default:
destFile += ".ttl";
break;
}
writer.Save(g, destFile);
//Get the Next Uri
u = context.GetNextURI();
}
}
catch (ThreadAbortException)
{
//We've been terminated, don't do anything
#if !SILVERLIGHT
Thread.ResetAbort();
#endif
}
catch (Exception ex)
{
throw new RdfStorageException("Error in Threaded Writer in Thread ID " + Thread.CurrentThread.ManagedThreadId, ex);
}
}
/// <summary>
/// Saves Graph containing Facebook context items to a file for later restore
/// </summary>
public void SaveContextToFile()
{
foreach (IGraph g in _store.Graphs)
{
Notation3Writer n3w = new Notation3Writer();
n3w.Save(_g, @"../../../SavedStore.n3");
}
}
/// <summary>
/// Internal Method which performs multi-threaded writing of data
/// </summary>
private void SaveGraphs(FolderStoreWriterContext context)
{
//Create the relevant Writer
IRdfWriter writer;
switch (context.Format)
{
case FolderStoreFormat.Turtle:
writer = new TurtleWriter();
break;
case FolderStoreFormat.Notation3:
writer = new Notation3Writer();
break;
case FolderStoreFormat.RdfXml:
#if !NO_XMLDOM
writer = new FastRdfXmlWriter();
#else
writer = new RdfXmlWriter();
#endif
break;
default:
writer = new TurtleWriter();
break;
}
try
{
Uri u = context.GetNextURI();
while (u != null)
{
//Get the Graph from the Store
IGraph g = context.Store.Graphs[u];
//Write to Disk
String destFile = Path.Combine(context.Folder, u.GetSha256Hash());
switch (context.Format)
{
case FolderStoreFormat.Turtle:
destFile += ".ttl";
break;
case FolderStoreFormat.Notation3:
destFile += ".n3";
break;
case FolderStoreFormat.RdfXml:
destFile += ".rdf";
break;
default:
destFile += ".ttl";
break;
}
writer.Save(g, destFile);
//Get the Next Uri
u = context.GetNextURI();
}
}
catch (ThreadAbortException)
{
//We've been terminated, don't do anything
#if !SILVERLIGHT
Thread.ResetAbort();
#endif
}
catch (Exception ex)
{
throw new RdfStorageException("Error in Threaded Writer in Thread ID " + Thread.CurrentThread.ManagedThreadId, ex);
}
}
public void SaveGraphToFile()
{
Notation3Writer n3w = new Notation3Writer();
n3w.Save(_g, @"../../../SavedStore.n3");
}
public void Dispose()
{
//Create all of the directories required for the file
var f = new FileInfo(_outputPath);
f.Directory.Create();
if (this._outputFormat == ERdfFormat.RdfXml)
{
using (XmlTextWriter xmlWriter = new XmlTextWriter(_outputPath, new UTF8Encoding(false)))
//Set encoding
{
_output.Save(xmlWriter);
}
}
else if (this._outputFormat == ERdfFormat.TriG)
{
string fileNameAsTrig = GetFilePathBasedOnFormat();
var outparams = new StreamParams(fileNameAsTrig);
outparams.Encoding = Encoding.UTF8;
var writer = new TriGWriter();
if (_store == null)
{
var g = GetXmlDocumentAsGraph();
_store = new TripleStore();
_store.Add(g, true);
}
writer.Save(_store, outparams);
}
else if (this._outputFormat == ERdfFormat.Turtle)
{
var g = GetXmlDocumentAsGraph();
string filePathForFormat = GetFilePathBasedOnFormat();
var writer = new TurtleWriter(TurtleSyntax.W3C);
writer.Save(g, filePathForFormat);
}
else if (this._outputFormat == ERdfFormat.NTriples)
{
var g = GetXmlDocumentAsGraph();
string filePathForFormat = GetFilePathBasedOnFormat();
var writer = new NTriplesWriter();
writer.Save(g, filePathForFormat);
}
else if (this._outputFormat == ERdfFormat.N3)
{
var g = GetXmlDocumentAsGraph();
string filePathForFormat = GetFilePathBasedOnFormat();
var writer = new Notation3Writer();
writer.Save(g, filePathForFormat);
}
else if (this._outputFormat == ERdfFormat.NQuads)
{
string filePathForFormat = GetFilePathBasedOnFormat();
var outparams = new StreamParams(filePathForFormat);
outparams.Encoding = Encoding.UTF8;
if (_store == null)
{
var g = GetXmlDocumentAsGraph();
_store = new TripleStore();
_store.Add(g, true);
}
var writer = new NQuadsWriter();
writer.Save(_store, outparams);
}
//make sure it's not null - can happen if no graphs have yet to be asserted!!
if (_store != null)
{
foreach (var graph in _store.Graphs)
{
graph.Dispose();
}
_store.Dispose();
GC.Collect();
}
}
