Examples with GlobalHashingLocalityMap org.apache.hyracks.dataflow.std.connectors.GlobalHashingLocalityMap used on opensource projects

Example 1 with GlobalHashingLocalityMap

use of org.apache.hyracks.dataflow.std.connectors.GlobalHashingLocalityMap in project asterixdb by apache.

the class LocalityAwareConnectorTest method globalPartitionAggregationTest.

/**
     * Test for locality aware connector, using the global hashing node mapper. This should have
     * the exactly the same result as using {@link MToNPartitioningConnectorDescriptor}.
     *
     * @throws Exception
     */
@Test
public void globalPartitionAggregationTest() throws Exception {
    JobSpecification spec = new JobSpecification();
    FileScanOperatorDescriptor csvScanner = new FileScanOperatorDescriptor(spec, splitProvider, tupleParserFactory, desc);
    PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, csvScanner, "asterix-001", "asterix-002", "asterix-003", "asterix-004");
    RecordDescriptor outputRec = new RecordDescriptor(new ISerializerDeserializer[] { new UTF8StringSerializerDeserializer(), IntegerSerializerDeserializer.INSTANCE, IntegerSerializerDeserializer.INSTANCE, FloatSerializerDeserializer.INSTANCE });
    int[] keyFields = new int[] { 0 };
    int tableSize = 8;
    ExternalGroupOperatorDescriptor grouper = new ExternalGroupOperatorDescriptor(spec, tableSize, fileSize, keyFields, fileSize / spec.getFrameSize() + 1, new IBinaryComparatorFactory[] { PointableBinaryComparatorFactory.of(UTF8StringPointable.FACTORY) }, new UTF8StringNormalizedKeyComputerFactory(), new MultiFieldsAggregatorFactory(new IFieldAggregateDescriptorFactory[] { new IntSumFieldAggregatorFactory(1, false), new IntSumFieldAggregatorFactory(3, false), new FloatSumFieldAggregatorFactory(5, false) }), new MultiFieldsAggregatorFactory(new IFieldAggregateDescriptorFactory[] { new IntSumFieldAggregatorFactory(1, false), new IntSumFieldAggregatorFactory(2, false), new FloatSumFieldAggregatorFactory(3, false) }), outputRec, outputRec, new HashSpillableTableFactory(new IBinaryHashFunctionFamily[] { UTF8StringBinaryHashFunctionFamily.INSTANCE }));
    PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, grouper, "asterix-005", "asterix-006");
    IConnectorDescriptor conn1 = new LocalityAwareMToNPartitioningConnectorDescriptor(spec, new FieldHashPartitionComputerFactory(keyFields, new IBinaryHashFunctionFactory[] { PointableBinaryHashFunctionFactory.of(UTF8StringPointable.FACTORY) }), new GlobalHashingLocalityMap());
    spec.connect(conn1, csvScanner, 0, grouper, 0);
    AbstractSingleActivityOperatorDescriptor printer = getPrinter(spec, "localityAwareSumInmemGroupTest");
    PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, "asterix-005", "asterix-006");
    IConnectorDescriptor conn2 = new OneToOneConnectorDescriptor(spec);
    spec.connect(conn2, grouper, 0, printer, 0);
    spec.addRoot(printer);
    runTest(spec);
}