Github user isper3at commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/198#discussion_r132250708
--- Diff:
extras/rya.pcj.fluo/pcj.fluo.integration/src/test/java/org/apache/rya/indexing/pcj/fluo/integration/KafkaExportIT.java
---
@@ -425,6 +432,160 @@ public void groupByManyBindings_avaerages() throws
Exception {
assertEquals(expectedResults, results);
}
+
+ @Test
+ public void nestedGroupByManyBindings_averages() throws Exception {
+ // A query that groups what is aggregated by two of the keys.
+ final String sparql =
+ "SELECT ?type ?location ?averagePrice {" +
+ "FILTER(?averagePrice > 4) " +
+ "{SELECT ?type ?location (avg(?price) as ?averagePrice) {"
+
+ "?id <urn:type> ?type . " +
+ "?id <urn:location> ?location ." +
+ "?id <urn:price> ?price ." +
+ "} " +
+ "GROUP BY ?type ?location }}";
+
+ // Create the Statements that will be loaded into Rya.
+ final ValueFactory vf = new ValueFactoryImpl();
+ final Collection<Statement> statements = Sets.newHashSet(
+ // American items that will be averaged.
+ vf.createStatement(vf.createURI("urn:1"),
vf.createURI("urn:type"), vf.createLiteral("apple")),
+ vf.createStatement(vf.createURI("urn:1"),
vf.createURI("urn:location"), vf.createLiteral("USA")),
+ vf.createStatement(vf.createURI("urn:1"),
vf.createURI("urn:price"), vf.createLiteral(2.50)),
+
+ vf.createStatement(vf.createURI("urn:2"),
vf.createURI("urn:type"), vf.createLiteral("cheese")),
+ vf.createStatement(vf.createURI("urn:2"),
vf.createURI("urn:location"), vf.createLiteral("USA")),
+ vf.createStatement(vf.createURI("urn:2"),
vf.createURI("urn:price"), vf.createLiteral(4.25)),
+
+ vf.createStatement(vf.createURI("urn:3"),
vf.createURI("urn:type"), vf.createLiteral("cheese")),
+ vf.createStatement(vf.createURI("urn:3"),
vf.createURI("urn:location"), vf.createLiteral("USA")),
+ vf.createStatement(vf.createURI("urn:3"),
vf.createURI("urn:price"), vf.createLiteral(5.25)),
+
+ // French items that will be averaged.
+ vf.createStatement(vf.createURI("urn:4"),
vf.createURI("urn:type"), vf.createLiteral("cheese")),
+ vf.createStatement(vf.createURI("urn:4"),
vf.createURI("urn:location"), vf.createLiteral("France")),
+ vf.createStatement(vf.createURI("urn:4"),
vf.createURI("urn:price"), vf.createLiteral(8.5)),
+
+ vf.createStatement(vf.createURI("urn:5"),
vf.createURI("urn:type"), vf.createLiteral("cigarettes")),
+ vf.createStatement(vf.createURI("urn:5"),
vf.createURI("urn:location"), vf.createLiteral("France")),
+ vf.createStatement(vf.createURI("urn:5"),
vf.createURI("urn:price"), vf.createLiteral(3.99)),
+
+ vf.createStatement(vf.createURI("urn:6"),
vf.createURI("urn:type"), vf.createLiteral("cigarettes")),
+ vf.createStatement(vf.createURI("urn:6"),
vf.createURI("urn:location"), vf.createLiteral("France")),
+ vf.createStatement(vf.createURI("urn:6"),
vf.createURI("urn:price"), vf.createLiteral(4.99)));
+
+ // Create the PCJ in Fluo and load the statements into Rya.
+ final String pcjId = loadData(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("type", vf.createLiteral("cheese",
XMLSchema.STRING));
+ bs.addBinding("location", vf.createLiteral("France",
XMLSchema.STRING));
+ bs.addBinding("averagePrice", vf.createLiteral("8.5",
XMLSchema.DECIMAL));
+ expectedResults.add( new VisibilityBindingSet(bs));
+
+ bs = new MapBindingSet();
+ bs.addBinding("type", vf.createLiteral("cigarettes",
XMLSchema.STRING));
+ bs.addBinding("location", vf.createLiteral("France",
XMLSchema.STRING));
+ bs.addBinding("averagePrice", vf.createLiteral("4.49",
XMLSchema.DECIMAL));
+ expectedResults.add( new VisibilityBindingSet(bs) );
+
+ bs = new MapBindingSet();
+ bs.addBinding("type", vf.createLiteral("cheese",
XMLSchema.STRING));
+ bs.addBinding("location", vf.createLiteral("USA",
XMLSchema.STRING));
+ bs.addBinding("averagePrice", vf.createLiteral("4.75",
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("type", "location"));
+ System.out.println(results);
--- End diff --
remove all the println()s, printing to console stuff down substantially.
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