private String toString(TupleQueryResult results)
throws QueryResultHandlerException, TupleQueryResultHandlerException,
QueryEvaluationException, UnsupportedEncodingException {
TupleQueryResultFormat format = getTupleFormat();
ByteArrayOutputStream out = new ByteArrayOutputStream(4096);
TupleQueryResultWriter writer = QueryResultIO.createTupleWriter(format, out);
writer.startDocument();
writer.startHeader();
writer.handleLinks(Arrays.<String>asList());
QueryResults.report(results, writer);
return out.toString("UTF-8");
}
private TupleQueryResult readExpectedTupleQueryResult() throws Exception {
TupleQueryResultFormat tqrFormat = QueryResultIO.getParserFormatForFileName(resultFileURL);
if (tqrFormat != null) {
InputStream in = new URL(resultFileURL).openStream();
try {
TupleQueryResultParser parser = QueryResultIO.createParser(tqrFormat);
parser.setValueFactory(dataRep.getValueFactory());
TupleQueryResultBuilder qrBuilder = new TupleQueryResultBuilder();
parser.setTupleQueryResultHandler(qrBuilder);
parser.parse(in);
return qrBuilder.getQueryResult();
} finally {
in.close();
}
} else {
Set<Statement> resultGraph = readExpectedGraphQueryResult();
return DAWGTestResultSetUtil.toTupleQueryResult(resultGraph);
}
}
private boolean readExpectedBooleanQueryResult() throws Exception {
BooleanQueryResultFormat bqrFormat =
BooleanQueryResultParserRegistry.getInstance().getFileFormatForFileName(resultFileURL);
if (bqrFormat != null) {
InputStream in = new URL(resultFileURL).openStream();
try {
return QueryResultIO.parse(in, bqrFormat);
} finally {
in.close();
}
} else {
Set<Statement> resultGraph = readExpectedGraphQueryResult();
return DAWGTestResultSetUtil.toBooleanQueryResult(resultGraph);
}
}