Examples with ValueFactory org.openrdf.model.ValueFactory used on opensource projects

Example 96 with ValueFactory

use of org.openrdf.model.ValueFactory in project incubator-rya by apache.

the class KafkaExportIT method max.

@Test
public void max() throws Exception {
    // A query that finds the maximum price for an item within the inventory.
    final String sparql = "SELECT (max(?price) as ?maxPrice) { " + "?item <urn:price> ?price . " + "}";
    // Create the Statements that will be loaded into Rya.
    final ValueFactory vf = new ValueFactoryImpl();
    final Collection<Statement> statements = Sets.newHashSet(vf.createStatement(vf.createURI("urn:apple"), vf.createURI("urn:price"), vf.createLiteral(2.50)), vf.createStatement(vf.createURI("urn:gum"), vf.createURI("urn:price"), vf.createLiteral(0.99)), vf.createStatement(vf.createURI("urn:sandwich"), vf.createURI("urn:price"), vf.createLiteral(4.99)));
    // Create the PCJ in Fluo and load the statements into Rya.
    final String pcjId = loadDataAndCreateQuery(sparql, statements);
    // Create the expected results of the SPARQL query once the PCJ has been computed.
    final MapBindingSet expectedResult = new MapBindingSet();
    expectedResult.addBinding("maxPrice", vf.createLiteral(4.99));
    // Ensure the last result matches the expected result.
    final VisibilityBindingSet result = readLastResult(pcjId);
    assertEquals(expectedResult, result);
}

Example 97 with ValueFactory

use of org.openrdf.model.ValueFactory in project incubator-rya by apache.

the class KafkaExportIT method groupBySingleBinding.

@Test
public void groupBySingleBinding() throws Exception {
    // A query that groups what is aggregated by one of the keys.
    final String sparql = "SELECT ?item (avg(?price) as ?averagePrice) {" + "?item <urn:price> ?price . " + "} " + "GROUP BY ?item";
    // Create the Statements that will be loaded into Rya.
    final ValueFactory vf = new ValueFactoryImpl();
    final Collection<Statement> statements = Sets.newHashSet(vf.createStatement(vf.createURI("urn:apple"), vf.createURI("urn:price"), vf.createLiteral(5.25)), vf.createStatement(vf.createURI("urn:apple"), vf.createURI("urn:price"), vf.createLiteral(7)), vf.createStatement(vf.createURI("urn:apple"), vf.createURI("urn:price"), vf.createLiteral(2.75)), vf.createStatement(vf.createURI("urn:banana"), vf.createURI("urn:price"), vf.createLiteral(2.75)), vf.createStatement(vf.createURI("urn:banana"), vf.createURI("urn:price"), vf.createLiteral(1.99)));
    // Create the PCJ in Fluo and load the statements into Rya.
    final String pcjId = loadDataAndCreateQuery(sparql, statements);
    // Create the expected results of the SPARQL query once the PCJ has been computed.
    final Set<VisibilityBindingSet> expectedResults = new HashSet<>();
    MapBindingSet bs = new MapBindingSet();
    bs.addBinding("item", vf.createURI("urn:apple"));
    bs.addBinding("averagePrice", vf.createLiteral("5.0", XMLSchema.DECIMAL));
    expectedResults.add(new VisibilityBindingSet(bs));
    bs = new MapBindingSet();
    bs.addBinding("item", vf.createURI("urn:banana"));
    bs.addBinding("averagePrice", vf.createLiteral("2.37", XMLSchema.DECIMAL));
    expectedResults.add(new VisibilityBindingSet(bs));
    // Verify the end results of the query match the expected results.
    final Set<VisibilityBindingSet> results = readGroupedResults(pcjId, new VariableOrder("item"));
    assertEquals(expectedResults, results);
}

Example 98 with ValueFactory

use of org.openrdf.model.ValueFactory in project incubator-rya by apache.

the class KafkaExportIT method average.

@Test
public void average() throws Exception {
    // A query that finds the average price for an item that is in the inventory.
    final String sparql = "SELECT (avg(?price) as ?averagePrice) { " + "?item <urn:price> ?price . " + "}";
    // Create the Statements that will be loaded into Rya.
    final ValueFactory vf = new ValueFactoryImpl();
    final Collection<Statement> statements = Sets.newHashSet(vf.createStatement(vf.createURI("urn:apple"), vf.createURI("urn:price"), vf.createLiteral(3)), vf.createStatement(vf.createURI("urn:gum"), vf.createURI("urn:price"), vf.createLiteral(4)), vf.createStatement(vf.createURI("urn:sandwich"), vf.createURI("urn:price"), vf.createLiteral(8)));
    // Create the PCJ in Fluo and load the statements into Rya.
    final String pcjId = loadDataAndCreateQuery(sparql, statements);
    // Create the expected results of the SPARQL query once the PCJ has been computed.
    final MapBindingSet expectedResult = new MapBindingSet();
    expectedResult.addBinding("averagePrice", vf.createLiteral("5", XMLSchema.DECIMAL));
    // Ensure the last result matches the expected result.
    final VisibilityBindingSet result = readLastResult(pcjId);
    assertEquals(expectedResult, result);
}

Example 99 with ValueFactory

use of org.openrdf.model.ValueFactory in project incubator-rya by apache.

the class QueryIT method nestedJoinPeriodicQueryWithAggregationAndGroupBy.

@Test
public void nestedJoinPeriodicQueryWithAggregationAndGroupBy() throws Exception {
    final String query = // n
    "prefix function: <http://org.apache.rya/function#> " + // n
    "prefix time: <http://www.w3.org/2006/time#> " + "select ?location ?total ?population " + "where { Filter(?total > 1)" + "?location <uri:hasPopulation> ?population . {" + // n
    "select ?location (count(?obs) as ?total) where {" + // n
    "Filter(function:periodic(?time, 2, .5, time:hours)) " + // n
    "?obs <uri:hasTime> ?time. " + // n
    "?obs <uri:hasLoc> ?location } group by ?location }}";
    // Create the Statements that will be loaded into Rya.
    final ValueFactory vf = new ValueFactoryImpl();
    final DatatypeFactory dtf = DatatypeFactory.newInstance();
    final ZonedDateTime time = ZonedDateTime.now();
    final long currentTime = time.toInstant().toEpochMilli();
    final ZonedDateTime zTime1 = time.minusMinutes(30);
    final String time1 = zTime1.format(DateTimeFormatter.ISO_INSTANT);
    final ZonedDateTime zTime2 = zTime1.minusMinutes(30);
    final String time2 = zTime2.format(DateTimeFormatter.ISO_INSTANT);
    final ZonedDateTime zTime3 = zTime2.minusMinutes(30);
    final String time3 = zTime3.format(DateTimeFormatter.ISO_INSTANT);
    final ZonedDateTime zTime4 = zTime3.minusMinutes(30);
    final String time4 = zTime4.format(DateTimeFormatter.ISO_INSTANT);
    final Collection<Statement> statements = Sets.newHashSet(vf.createStatement(vf.createURI("urn:obs_1"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time1))), vf.createStatement(vf.createURI("urn:obs_1"), vf.createURI("uri:hasLoc"), vf.createURI("uri:loc_1")), vf.createStatement(vf.createURI("uri:loc_1"), vf.createURI("uri:hasPopulation"), vf.createLiteral(3500)), vf.createStatement(vf.createURI("uri:loc_2"), vf.createURI("uri:hasPopulation"), vf.createLiteral(8000)), vf.createStatement(vf.createURI("urn:obs_2"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time2))), vf.createStatement(vf.createURI("urn:obs_2"), vf.createURI("uri:hasLoc"), vf.createURI("uri:loc_2")), vf.createStatement(vf.createURI("urn:obs_3"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time3))), vf.createStatement(vf.createURI("urn:obs_3"), vf.createURI("uri:hasLoc"), vf.createURI("uri:loc_3")), vf.createStatement(vf.createURI("urn:obs_4"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time4))), vf.createStatement(vf.createURI("urn:obs_4"), vf.createURI("uri:hasLoc"), vf.createURI("uri:loc_4")), vf.createStatement(vf.createURI("urn:obs_5"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time4))), vf.createStatement(vf.createURI("urn:obs_5"), vf.createURI("uri:hasLoc"), vf.createURI("uri:loc_1")), vf.createStatement(vf.createURI("urn:obs_6"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time3))), vf.createStatement(vf.createURI("urn:obs_6"), vf.createURI("uri:hasLoc"), vf.createURI("uri:loc_2")));
    // Create the expected results of the SPARQL query once the PCJ has been computed.
    final Set<BindingSet> expectedResults = new HashSet<>();
    final long period = 1800000;
    final long binId = currentTime / period * period;
    MapBindingSet bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("2", XMLSchema.INTEGER));
    bs.addBinding("location", vf.createURI("uri:loc_1"));
    bs.addBinding("population", vf.createLiteral("3500", XMLSchema.INTEGER));
    bs.addBinding("periodicBinId", vf.createLiteral(binId));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("2", XMLSchema.INTEGER));
    bs.addBinding("location", vf.createURI("uri:loc_2"));
    bs.addBinding("population", vf.createLiteral("8000", XMLSchema.INTEGER));
    bs.addBinding("periodicBinId", vf.createLiteral(binId));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("2", XMLSchema.INTEGER));
    bs.addBinding("location", vf.createURI("uri:loc_2"));
    bs.addBinding("population", vf.createLiteral("8000", XMLSchema.INTEGER));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + period));
    expectedResults.add(bs);
    // Verify the end results of the query match the expected results.
    runTest(query, statements, expectedResults, ExportStrategy.PERIODIC);
}

Example 100 with ValueFactory

use of org.openrdf.model.ValueFactory in project incubator-rya by apache.

the class QueryIT method periodicQueryTestWithAggregationAndGroupBy.

@Test
public void periodicQueryTestWithAggregationAndGroupBy() throws Exception {
    final String query = // n
    "prefix function: <http://org.apache.rya/function#> " + // n
    "prefix time: <http://www.w3.org/2006/time#> " + // n
    "select ?id (count(?obs) as ?total) where {" + // n
    "Filter(function:periodic(?time, 2, .5, time:hours)) " + // n
    "?obs <uri:hasTime> ?time. " + // n
    "?obs <uri:hasId> ?id } group by ?id";
    // Create the Statements that will be loaded into Rya.
    final ValueFactory vf = new ValueFactoryImpl();
    final DatatypeFactory dtf = DatatypeFactory.newInstance();
    final ZonedDateTime time = ZonedDateTime.now();
    final long currentTime = time.toInstant().toEpochMilli();
    final ZonedDateTime zTime1 = time.minusMinutes(30);
    final String time1 = zTime1.format(DateTimeFormatter.ISO_INSTANT);
    final ZonedDateTime zTime2 = zTime1.minusMinutes(30);
    final String time2 = zTime2.format(DateTimeFormatter.ISO_INSTANT);
    final ZonedDateTime zTime3 = zTime2.minusMinutes(30);
    final String time3 = zTime3.format(DateTimeFormatter.ISO_INSTANT);
    final ZonedDateTime zTime4 = zTime3.minusMinutes(30);
    final String time4 = zTime4.format(DateTimeFormatter.ISO_INSTANT);
    final Collection<Statement> statements = Sets.newHashSet(vf.createStatement(vf.createURI("urn:obs_1"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time1))), vf.createStatement(vf.createURI("urn:obs_1"), vf.createURI("uri:hasId"), vf.createLiteral("id_1")), vf.createStatement(vf.createURI("urn:obs_2"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time2))), vf.createStatement(vf.createURI("urn:obs_2"), vf.createURI("uri:hasId"), vf.createLiteral("id_2")), vf.createStatement(vf.createURI("urn:obs_3"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time3))), vf.createStatement(vf.createURI("urn:obs_3"), vf.createURI("uri:hasId"), vf.createLiteral("id_3")), vf.createStatement(vf.createURI("urn:obs_4"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time4))), vf.createStatement(vf.createURI("urn:obs_4"), vf.createURI("uri:hasId"), vf.createLiteral("id_4")), vf.createStatement(vf.createURI("urn:obs_1"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time4))), vf.createStatement(vf.createURI("urn:obs_1"), vf.createURI("uri:hasId"), vf.createLiteral("id_1")), vf.createStatement(vf.createURI("urn:obs_2"), vf.createURI("uri:hasTime"), vf.createLiteral(dtf.newXMLGregorianCalendar(time3))), vf.createStatement(vf.createURI("urn:obs_2"), vf.createURI("uri:hasId"), vf.createLiteral("id_2")));
    // Create the expected results of the SPARQL query once the PCJ has been computed.
    final Set<BindingSet> expectedResults = new HashSet<>();
    final long period = 1800000;
    final long binId = currentTime / period * period;
    MapBindingSet bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("2", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_1", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("2", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_2", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_3", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_4", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_1", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + period));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("2", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_2", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + period));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_3", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + period));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_1", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + 2 * period));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_2", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + 2 * period));
    expectedResults.add(bs);
    bs = new MapBindingSet();
    bs.addBinding("total", vf.createLiteral("1", XMLSchema.INTEGER));
    bs.addBinding("id", vf.createLiteral("id_1", XMLSchema.STRING));
    bs.addBinding("periodicBinId", vf.createLiteral(binId + 3 * period));
    expectedResults.add(bs);
    // Verify the end results of the query match the expected results.
    runTest(query, statements, expectedResults, ExportStrategy.PERIODIC);
}