Examples with Prologue org.apache.jena.sparql.core.Prologue used on opensource projects

Example 1 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class UpdateWriter method output.

// -- Convenience static methods -----------------------
public static void output(UpdateRequest request, IndentedWriter out) {
    Prologue prologue = request;
    if (!request.explicitlySetBaseURI())
        prologue = new Prologue(request.getPrefixMapping(), (IRIResolver) null);
    SerializationContext sCxt = new SerializationContext(prologue, new NodeToLabelMapBNode());
    output(request, out, sCxt);
}

Example 2 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class QueryExecUtils method outputResultSet.

@SuppressWarnings("deprecation")
public static void outputResultSet(ResultSet results, Prologue prologue, ResultsFormat outputFormat) {
    // Proper ResultSet formats.
    Lang lang = ResultsFormat.convert(outputFormat);
    if (lang != null) {
        ResultSetMgr.write(System.out, results, lang);
        System.out.flush();
        return;
    }
    // Old way.
    boolean done = false;
    if (prologue == null)
        prologue = new Prologue(globalPrefixMap);
    if (outputFormat.equals(ResultsFormat.FMT_UNKNOWN))
        outputFormat = ResultsFormat.FMT_TEXT;
    if (outputFormat.equals(ResultsFormat.FMT_NONE) || outputFormat.equals(ResultsFormat.FMT_COUNT)) {
        int count = ResultSetFormatter.consume(results);
        if (outputFormat.equals(ResultsFormat.FMT_COUNT)) {
            System.out.println("Count = " + count);
        }
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RDF_XML) || outputFormat.equals(ResultsFormat.FMT_RDF_N3) || outputFormat.equals(ResultsFormat.FMT_RDF_TTL)) {
        Model m = RDFOutput.encodeAsModel(results);
        m.setNsPrefixes(prologue.getPrefixMapping());
        m.setNsPrefix("rs", ResultSetGraphVocab.getURI());
        RDFDataMgr.write(System.out, m, Lang.TURTLE);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RS_XML)) {
        ResultSetFormatter.outputAsXML(System.out, results);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RS_JSON)) {
        ResultSetFormatter.outputAsJSON(System.out, results);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RS_SSE)) {
        ResultSetFormatter.outputAsSSE(System.out, results, prologue);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_TEXT)) {
        ResultSetFormatter.out(System.out, results, prologue);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_TUPLES)) {
        PlainFormat pFmt = new PlainFormat(System.out, prologue);
        ResultSetApply a = new ResultSetApply(results, pFmt);
        a.apply();
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RS_CSV)) {
        ResultSetFormatter.outputAsCSV(System.out, results);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RS_TSV)) {
        ResultSetFormatter.outputAsTSV(System.out, results);
        done = true;
    }
    if (outputFormat.equals(ResultsFormat.FMT_RS_BIO)) {
        ResultSetFormatter.outputAsBIO(System.out, results);
        done = true;
    }
    if (!done)
        System.err.println("Unknown format request: " + outputFormat);
    results = null;
    System.out.flush();
}

Example 3 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class SerializerRegistry method init.

private static synchronized void init() {
    SerializerRegistry reg = new SerializerRegistry();
    // Register standard serializers
    QuerySerializerFactory arqQuerySerializerFactory = new QuerySerializerFactory() {

        @Override
        public QueryVisitor create(Syntax syntax, Prologue prologue, IndentedWriter writer) {
            // For the query pattern
            SerializationContext cxt1 = new SerializationContext(prologue, new NodeToLabelMapBNode("b", false));
            // For the construct pattern
            SerializationContext cxt2 = new SerializationContext(prologue, new NodeToLabelMapBNode("c", false));
            return new QuerySerializer(writer, new FormatterElement(writer, cxt1), new FmtExprSPARQL(writer, cxt1), new FmtTemplate(writer, cxt2));
        }

        @Override
        public QueryVisitor create(Syntax syntax, SerializationContext context, IndentedWriter writer) {
            return new QuerySerializer(writer, new FormatterElement(writer, context), new FmtExprSPARQL(writer, context), new FmtTemplate(writer, context));
        }

        @Override
        public boolean accept(Syntax syntax) {
            // and SPARQL 1.1 can be serialized by the same serializer
            return Syntax.syntaxARQ.equals(syntax) || Syntax.syntaxSPARQL_10.equals(syntax) || Syntax.syntaxSPARQL_11.equals(syntax);
        }
    };
    reg.addQuerySerializer(Syntax.syntaxARQ, arqQuerySerializerFactory);
    reg.addQuerySerializer(Syntax.syntaxSPARQL_10, arqQuerySerializerFactory);
    reg.addQuerySerializer(Syntax.syntaxSPARQL_11, arqQuerySerializerFactory);
    UpdateSerializerFactory arqUpdateSerializerFactory = new UpdateSerializerFactory() {

        @Override
        public UpdateSerializer create(Syntax syntax, Prologue prologue, IndentedWriter writer) {
            if (!prologue.explicitlySetBaseURI())
                prologue = new Prologue(prologue.getPrefixMapping(), (IRIResolver) null);
            SerializationContext context = new SerializationContext(prologue);
            return new UpdateWriter(writer, context);
        }

        @Override
        public boolean accept(Syntax syntax) {
            // and SPARQL 1.1 can be serialized by the same serializer
            return Syntax.syntaxARQ.equals(syntax) || Syntax.syntaxSPARQL_10.equals(syntax) || Syntax.syntaxSPARQL_11.equals(syntax);
        }
    };
    reg.addUpdateSerializer(Syntax.syntaxARQ, arqUpdateSerializerFactory);
    reg.addUpdateSerializer(Syntax.syntaxSPARQL_10, arqUpdateSerializerFactory);
    reg.addUpdateSerializer(Syntax.syntaxSPARQL_11, arqUpdateSerializerFactory);
    registry = reg;
}

Example 4 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class MgtFunctions method prefixes.

/** Return prefixes for the datasets, SPARQL syntax. */
public static String prefixes(HttpServletRequest request) {
    String dsName = dataset(request);
    DatasetRef desc = getFromRegistry(dsName);
    if (desc == null)
        return "<not found>";
    DatasetGraph dsg = desc.dataset;
    if (dsg instanceof DatasetGraphTDB) {
        PrefixMapping pmap = ((DatasetGraphTDB) dsg).getPrefixes().getPrefixMapping();
        Prologue prologue = new Prologue(pmap);
        IndentedLineBuffer buff = new IndentedLineBuffer();
        PrologueSerializer.output(buff, prologue);
        buff.append("\n");
        return buff.asString();
    }
    return "";
}

Example 5 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class ParseHandlerResolver method dump.

private void dump() {
    Iterator<Prologue> iter = state.iterator();
    for (; iter.hasNext(); ) {
        Prologue p = iter.next();
        System.out.println("  Prologue: " + p.getBaseURI());
    }
}