de.fuberlin.wiwiss.ng4j.trix
Class TriXParserWithExtensions

java.lang.Object
  de.fuberlin.wiwiss.ng4j.trix.TriXParserWithExtensions

public class TriXParserWithExtensions
extends Object

A parser for TriX files (see TriX specification). Parsed graphs and triples are passed to a ParserCallback for further processing.

The parser supports TriX syntactic extensions, which are XSLT stylesheets referenced using a processing instructions. The implementation loads the input document as a DOM tree, finds the processing instructions, applies the stylesheets if any are found, re-serializes the tree as XML, then parses again using a SAX parser. The reason for this waste of resources is that I didn't find a way to validate a DOM tree against an XML schema.

TODO: Implement syntactic extensions in a less braindead way
TODO: Have only one parse() method, with InputSource argument

Author:

Richard Cyganiak (richard@cyganiak.de)

Constructor Summary

TriXParserWithExtensions()

Method Summary

void	parse(InputStream source, URI baseURI, ParserCallback callback) Parses a TriX file from an InputStream.
void	parse(Reader source, URI baseURI, ParserCallback callback) Parses a TriX file from a Reader.

Methods inherited from class java.lang.Object

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

Constructor Detail

TriXParserWithExtensions

public TriXParserWithExtensions()

Method Detail

parse

public void parse(InputStream source,
                  URI baseURI,
                  ParserCallback callback)
           throws IOException,
                  SAXException,
                  TransformerException

Parses a TriX file from an InputStream. Parsed graphs and triples are passed to the callback.

Parameters:

source - a stream containing a TriX file

baseURI - the URI of the input file (for resolving relative URIs)

callback - receives parsed graphs and triples

Throws:

SAXException - on XML parse error

IOException - on I/O error when reading from source

TransformerException - on error when applying an XSLT syntactic extension

parse

public void parse(Reader source,
                  URI baseURI,
                  ParserCallback callback)
           throws IOException,
                  SAXException,
                  TransformerException

Parses a TriX file from a Reader. Parsed graphs and triples are passed to the callback.

Parameters:

source - a stream containing a TriX file

baseURI - the URI of the input file (for resolving relative URIs)

callback - receives parsed graphs and triples

Throws:

SAXException - on XML parse error

IOException - on I/O error when reading from source

TransformerException - on error when applying an XSLT syntactic extension