org.semanticweb.vlog4j.examples.core

Class AddDataFromRdfFile

java.lang.Object

org.semanticweb.vlog4j.examples.core.AddDataFromRdfFile

public class AddDataFromRdfFile
extends Object

This example shows how facts can be imported from files in the RDF N-Triples format. Specifically, it imports from a .nt.gz file, but you can also import from .nt files. Moreover, it shows how query answers that result from reasoning over these facts can be exported to .csv files.

This example is an adaptation of AddDataFromCsvFile, where the rules have been modified to work with the ternary predicates that N-Triples enforces.

For importing, an RdfFileDataSource that contains a path to the corresponding .nt.gz file must be created. An .nt file contains facts in the RDF N-Triples format, which can be associated with a ternary Predicate. A .nt.gz file is the gzipped version of such an .nt file.

For exporting, a path to the output .csv file must be specified.

Exception handling is omitted for simplicity.

Author:

Christian Lewe, Markus Kroetzsch

Constructor Summary

Constructors

Constructor and Description
AddDataFromRdfFile()

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AddDataFromRdfFile

public AddDataFromRdfFile()

Method Detail

main

public static void main(String[] args)
                 throws IOException,
                        org.semanticweb.vlog4j.parser.ParsingException

Throws:

IOException

org.semanticweb.vlog4j.parser.ParsingException