Examples with TupleQueryResultHandlerException org.eclipse.rdf4j.query.TupleQueryResultHandlerException used on opensource projects

Example 16 with TupleQueryResultHandlerException

use of org.eclipse.rdf4j.query.TupleQueryResultHandlerException in project rdf4j by eclipse.

the class DAWGTestResultSetParser method reportSolution.

private void reportSolution(Resource solutionNode, List<String> bindingNames) throws RDFHandlerException, GraphUtilException {
    MapBindingSet bindingSet = new MapBindingSet(bindingNames.size());
    Iterator<Value> bindingIter = GraphUtil.getObjectIterator(graph, solutionNode, BINDING);
    while (bindingIter.hasNext()) {
        Value bindingNode = bindingIter.next();
        if (bindingNode instanceof Resource) {
            Binding binding = getBinding((Resource) bindingNode);
            bindingSet.addBinding(binding);
        } else {
            throw new RDFHandlerException("Value for " + BINDING + " is not a resource: " + bindingNode);
        }
    }
    try {
        tqrHandler.handleSolution(bindingSet);
    } catch (TupleQueryResultHandlerException e) {
        throw new RDFHandlerException(e.getMessage(), e);
    }
}

Example 17 with TupleQueryResultHandlerException

use of org.eclipse.rdf4j.query.TupleQueryResultHandlerException in project rdf4j by eclipse.

the class DAWGTestResultSetUtil method toGraph.

public static Graph toGraph(TupleQueryResult tqr) throws QueryEvaluationException {
    Graph graph = new GraphImpl();
    DAWGTestResultSetWriter writer = new DAWGTestResultSetWriter(new StatementCollector(graph));
    try {
        writer.startQueryResult(tqr.getBindingNames());
        while (tqr.hasNext()) {
            writer.handleSolution(tqr.next());
        }
        writer.endQueryResult();
    } catch (TupleQueryResultHandlerException e) {
        // StatementCollector, foud a bug?
        throw new RuntimeException(e);
    }
    return graph;
}

Example 18 with TupleQueryResultHandlerException

use of org.eclipse.rdf4j.query.TupleQueryResultHandlerException in project rdf4j by eclipse.

the class DAWGTestResultSetWriter method startQueryResult.

/*---------*
	 * Methods *
	 *---------*/
@Override
public void startQueryResult(List<String> bindingNames) throws TupleQueryResultHandlerException {
    try {
        rdfHandler.startRDF();
        resultSetNode = vf.createBNode();
        bnodeMap.clear();
        reportStatement(resultSetNode, RDF.TYPE, RESULTSET);
        for (String bindingName : bindingNames) {
            Literal bindingNameLit = vf.createLiteral(bindingName);
            reportStatement(resultSetNode, RESULTVARIABLE, bindingNameLit);
        }
    } catch (RDFHandlerException e) {
        throw new TupleQueryResultHandlerException(e);
    }
}

Example 19 with TupleQueryResultHandlerException

use of org.eclipse.rdf4j.query.TupleQueryResultHandlerException in project rdf4j by eclipse.

the class BinaryQueryResultWriter method startDocument.

@Override
public void startDocument() throws TupleQueryResultHandlerException {
    documentStarted = true;
    try {
        out.write(MAGIC_NUMBER);
        out.writeInt(FORMAT_VERSION);
    } catch (IOException e) {
        throw new TupleQueryResultHandlerException(e);
    }
}

Example 20 with TupleQueryResultHandlerException

use of org.eclipse.rdf4j.query.TupleQueryResultHandlerException in project rdf4j by eclipse.

the class BinaryQueryResultWriter method endQueryResult.

@Override
public void endQueryResult() throws TupleQueryResultHandlerException {
    if (!tupleVariablesFound) {
        throw new IllegalStateException("Could not end query result as startQueryResult was not called first.");
    }
    try {
        out.writeByte(TABLE_END_RECORD_MARKER);
        endDocument();
    } catch (IOException e) {
        throw new TupleQueryResultHandlerException(e);
    }
}