private RDFGraph DeserializateGraph(RDFModelEnums.RDFFormats format)
{
try
{
switch (format)
{
case RDFModelEnums.RDFFormats.NTriples:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.NTriples, "graphs/NTriples.txt"));
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.RdfXml, "graphs/RdfXml.txt"));
case RDFModelEnums.RDFFormats.TriX:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.TriX, "graphs/TriX.txt"));
case RDFModelEnums.RDFFormats.Turtle:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, "graphs/Turtle.txt"));
default:
return(null);
}
}
catch (RDFModelException ex)
{
Console.WriteLine(ex.Message);
return(null);
}
}
/// <summary>
/// Creates a graph from a stream of the given RDF format.
/// </summary>
public static RDFGraph FromStream(RDFModelEnums.RDFFormats rdfFormat, Stream inputStream)
{
if (inputStream != null)
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
return(RDFNTriples.Deserialize(inputStream));
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFXml.Deserialize(inputStream));
case RDFModelEnums.RDFFormats.TriX:
return(RDFTriX.Deserialize(inputStream));
case RDFModelEnums.RDFFormats.Turtle:
return(RDFTurtle.Deserialize(inputStream));
default:
throw new NotImplementedException();
break;
}
}
throw new RDFModelException("Cannot read RDF graph from stream because given \"inputStream\" parameter is null.");
}
/// <summary>
/// Writes the graph into a stream in the given RDF format.
/// </summary>
public void ToStream(RDFModelEnums.RDFFormats rdfFormat, Stream outputStream)
{
if (outputStream != null)
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
RDFNTriples.Serialize(this, outputStream);
break;
case RDFModelEnums.RDFFormats.RdfXml:
RDFXml.Serialize(this, outputStream);
break;
case RDFModelEnums.RDFFormats.TriX:
RDFTriX.Serialize(this, outputStream);
break;
case RDFModelEnums.RDFFormats.Turtle:
RDFTurtle.Serialize(this, outputStream);
break;
default:
throw new NotImplementedException();
break;
}
}
else
{
throw new RDFModelException("Cannot write RDF graph to stream because given \"outputStream\" parameter is null.");
}
}
/// <summary>
/// Creates a graph from a file of the given RDF format.
/// </summary>
public static RDFGraph FromFile(RDFModelEnums.RDFFormats rdfFormat, String filepath)
{
if (!String.IsNullOrEmpty(filepath))
{
if (File.Exists(filepath))
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
return(RDFNTriples.Deserialize(filepath));
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFXml.Deserialize(filepath));
case RDFModelEnums.RDFFormats.TriX:
return(RDFTriX.Deserialize(filepath));
case RDFModelEnums.RDFFormats.Turtle:
return(RDFTurtle.Deserialize(filepath));
default:
throw new NotImplementedException();
break;
}
}
throw new RDFModelException("Cannot read RDF graph from file because given \"filepath\" parameter (" + filepath + ") does not indicate an existing file.");
}
throw new RDFModelException("Cannot read RDF graph from file because given \"filepath\" parameter is null or empty.");
}
/// <summary>
/// Writes the graph into a file in the given RDF format.
/// </summary>
public void ToFile(RDFModelEnums.RDFFormats rdfFormat, String filepath)
{
if (filepath != null && filepath.Trim() != String.Empty)
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
RDFNTriples.Serialize(this, filepath);
break;
case RDFModelEnums.RDFFormats.RdfXml:
RDFXml.Serialize(this, filepath);
break;
case RDFModelEnums.RDFFormats.TriX:
RDFTriX.Serialize(this, filepath);
break;
case RDFModelEnums.RDFFormats.Turtle:
RDFTurtle.Serialize(this, filepath);
break;
}
}
else
{
throw new RDFModelException("Cannot write RDF graph to file because given \"filepath\" parameter is null or empty.");
}
}
/// <summary>
/// Writes the graph into a file in the given RDF format.
/// </summary>
public void ToFile(RDFModelEnums.RDFFormats rdfFormat, String filepath)
{
if (!String.IsNullOrEmpty(filepath))
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
RDFNTriples.Serialize(this, filepath);
break;
case RDFModelEnums.RDFFormats.RdfXml:
RDFXml.Serialize(this, filepath);
break;
case RDFModelEnums.RDFFormats.TriX:
RDFTriX.Serialize(this, filepath);
break;
case RDFModelEnums.RDFFormats.Turtle:
RDFTurtle.Serialize(this, filepath);
break;
default:
throw new NotImplementedException();
break;
}
}
else
{
throw new RDFModelException("Cannot write RDF graph to file because given \"filepath\" parameter is null or empty.");
}
}
/// <summary>
/// Creates a graph from a file of the given RDF format.
/// </summary>
public static RDFGraph FromFile(RDFModelEnums.RDFFormats rdfFormat, String filepath)
{
if (filepath != null)
{
if (File.Exists(filepath))
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
return(RDFNTriples.Deserialize(filepath));
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFXml.Deserialize(filepath));
case RDFModelEnums.RDFFormats.TriX:
return(RDFTriX.Deserialize(filepath));
case RDFModelEnums.RDFFormats.Turtle:
throw new RDFModelException("Cannot read RDF graph from file because Turtle format is not supported. What about joining the project to contribute it?");
}
}
throw new RDFModelException("Cannot read RDF graph from file because given \"filepath\" parameter (" + filepath + ") does not indicate an existing file.");
}
throw new RDFModelException("Cannot read RDF graph from file because given \"filepath\" parameter is null or empty.");
}
/// <summary>
/// Creates a graph from a stream of the given RDF format.
/// </summary>
public static RDFGraph FromStream(RDFModelEnums.RDFFormats rdfFormat, Stream inputStream)
{
if (inputStream != null)
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.NTriples:
return(RDFNTriples.Deserialize(inputStream));
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFXml.Deserialize(inputStream));
case RDFModelEnums.RDFFormats.TriX:
return(RDFTriX.Deserialize(inputStream));
case RDFModelEnums.RDFFormats.Turtle:
throw new RDFModelException("Cannot read RDF graph from stream because Turtle format is not supported. What about joining the project to contribute it?");
}
}
throw new RDFModelException("Cannot read RDF graph from stream because given \"filepath\" parameter is null.");
}
internal static RDFGraph FromStream(RDFModelEnums.RDFFormats rdfFormat, Stream inputStream, Uri graphContext)
{
if (inputStream != null)
{
switch (rdfFormat)
{
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFXml.Deserialize(inputStream, graphContext));
case RDFModelEnums.RDFFormats.Turtle:
return(RDFTurtle.Deserialize(inputStream, graphContext));
case RDFModelEnums.RDFFormats.NTriples:
return(RDFNTriples.Deserialize(inputStream, graphContext));
case RDFModelEnums.RDFFormats.TriX:
return(RDFTriX.Deserialize(inputStream, graphContext));
}
}
throw new RDFModelException("Cannot read RDF graph from stream because given \"inputStream\" parameter is null.");
}
private void SerializeGraph(RDFGraph graph, RDFModelEnums.RDFFormats format)
{
// create file path
DirectoryInfo di = Directory.CreateDirectory("graphs");
switch (format)
{
case RDFModelEnums.RDFFormats.NTriples:
graph.ToFile(RDFModelEnums.RDFFormats.NTriples, "graphs/NTriples.txt");
break;
case RDFModelEnums.RDFFormats.RdfXml:
graph.ToFile(RDFModelEnums.RDFFormats.RdfXml, "graphs/RdfXml.txt");
break;
case RDFModelEnums.RDFFormats.TriX:
graph.ToFile(RDFModelEnums.RDFFormats.TriX, "graphs/TriX.txt");
break;
case RDFModelEnums.RDFFormats.Turtle:
graph.ToFile(RDFModelEnums.RDFFormats.Turtle, "graphs/Turtle.txt");
break;
}
}
/// <summary> /// Creates a graph from a stream of the given RDF format. /// </summary> public static RDFGraph FromStream(RDFModelEnums.RDFFormats rdfFormat, Stream inputStream) => FromStream(rdfFormat, inputStream, null);
public static void Convert(RDFModelEnums.RDFFormats formatSource, FileInfo fileSource, RDFModelEnums.RDFFormats formatDestination, FileInfo fileDestination)
{
RDFGraph graph = RDFGraph.FromFile(formatSource, fileSource.FullName);
graph.ToFile(formatDestination, fileDestination.FullName);
}
/// <summary> /// Asynchronously reads a graph from a stream of the given RDF format. /// </summary> public static Task <RDFGraph> FromStreamAsync(RDFModelEnums.RDFFormats rdfFormat, Stream inputStream) => Task.Run(() => FromStream(rdfFormat, inputStream));
/// <summary> /// Asynchronously reads a graph from a file of the given RDF format. /// </summary> public static Task <RDFGraph> FromFileAsync(RDFModelEnums.RDFFormats rdfFormat, string filepath) => Task.Run(() => FromFile(rdfFormat, filepath));
/// <summary> /// Asynchronously writes the graph into a stream in the given RDF format. /// </summary> public Task ToStreamAsync(RDFModelEnums.RDFFormats rdfFormat, Stream outputStream) => Task.Run(() => ToStream(rdfFormat, outputStream));
/// <summary> /// Asynchronously writes the graph into a file in the given RDF format. /// </summary> public Task ToFileAsync(RDFModelEnums.RDFFormats rdfFormat, string filepath) => Task.Run(() => ToFile(rdfFormat, filepath));
