Examples of org.openrdf.rio.RDFHandler

org.openrdf.rio.RDFHandler
An interface defining methods related to RDF data handling. RDFHandler is both used as a "consumer" and as a "producer" interface. As such it can be used both as an interface for receiving RDF data, for example by listening to the results of an RDF parser, and as an interface for reporting RDF data, for example to an object that serializes RDF data to an RDF/XML document.

  @Override
  public void removeMatch(Resource subject, URI predicate, Value object, Resource... contexts)
    throws StoreException
  {
    if (archiveContexts.length > 0) {
      RDFHandler handler = new RDFInserter(getDelegate());
      try {
        getDelegate().exportMatch(subject, predicate, object, true, handler, archiveContexts);
      }
      catch (RDFHandlerException e) {
        if (e.getCause() instanceof StoreException) {

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        return projectDependency;
    }


    private void exportRepositoryToRdf( String fileName )
    {
        RDFHandler rdfxmlWriter;
        try
        {
            File exportFile = new File( localRepository.getParentFile(), fileName );
            rdfxmlWriter = new RDFXMLWriter( new FileOutputStream( exportFile ) );
        }

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        return dao;
    }


    private void exportRepositoryToRdf( String fileName, File localRepository, Repository rdfRepository )
    {
        RDFHandler rdfxmlWriter;
        try
        {
            File exportFile = new File( localRepository.getParentFile(), fileName );
            rdfxmlWriter = new RDFXMLWriter( new FileOutputStream( exportFile ) );
        }

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        catch ( RepositoryException e )
        {
            throw new MojoExecutionException( e.getMessage() );
        }


        RDFHandler rdfxmlWriter;
        try
        {
            rdfxmlWriter = new RDFXMLWriter( new FileOutputStream( localRepository+"/rdf-repository-export.xml" ) );
        }
        catch ( IOException e )

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        try {
            this.commit();
            final SailConnection c = this.rawGraph.getConnection();
            try {
                c.begin();
                RDFHandler h = null == baseGraph
                        ? new SailAdder(c)
                        : new SailAdder(c, new URIImpl(baseGraph));
                if (rdfHandlers != null) {
                    RDFHandler[] handlers = new RDFHandler[rdfHandlers.length + 1];
                    handlers[0] = h;

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     */
    public GraphSail(final T graph) {
        this(graph, "p,c,pc");


        RDFParser p = Rio.createParser(org.openrdf.rio.RDFFormat.NTRIPLES);
        p.setRDFHandler(new RDFHandler() {
            public void startRDF() throws RDFHandlerException {}
            public void endRDF() throws RDFHandlerException {}
            public void handleNamespace(String s, String s1) throws RDFHandlerException {}
            public void handleStatement(Statement s) throws RDFHandlerException {

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                           final RDFFormat format) throws Exception {
        try {
            SailConnection sc = sail.getConnection();
            sc.begin();
            try {
                RDFHandler h = new SailAdder(sc);
                RDFParser p = Rio.createParser(format);
                p.setRDFHandler(h);
                p.parse(in, "http://example.org/bogusBaseURI/");
                sc.commit();
            } finally {

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     * @throws java.io.IOException
     */
    public void saveRepositoryAsN3(String output_file_path) throws RepositoryException, RDFHandlerException, IOException {
        FileWriter outFile = new FileWriter(output_file_path);
        //PrintWriter out = new PrintWriter(outFile);
        RDFHandler n3Writer = new N3Writer(outFile);
        con.export(n3Writer);
        outFile.close();
    }

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                RepositoryConnection con = response.getTriples().getConnection();
                con.begin();


                ByteArrayOutputStream out = new ByteArrayOutputStream();
                RDFHandler handler = new RDFXMLPrettyWriter(out);
                con.export(handler);


                con.commit();
                con.close();

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        if(cacheSailProvider.isEnabled()) {
            try {
                ClientResponse response = cacheSailProvider.getLDClient().retrieveResource(uri);


                ByteArrayOutputStream out = new ByteArrayOutputStream();
                RDFHandler handler = new RDFXMLPrettyWriter(out);


                ModelCommons.export(response.getData(), handler);


                return Response.ok().entity( new String(out.toByteArray(), "utf-8")).build();
            } catch (Exception e) {

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