@Test
public void testJoinWithTuples() {
try {
final Partitioner<Long> partitioner = new TestPartitionerLong();
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple2<Long, Long>> input1 = env.fromElements(new Tuple2<Long, Long>(0L, 0L));
DataSet<Tuple3<Long, Long, Long>> input2 =
env.fromElements(new Tuple3<Long, Long, Long>(0L, 0L, 0L));
input1
.join(input2, JoinHint.REPARTITION_HASH_FIRST)
.where(1)
.equalTo(0)
.withPartitioner(partitioner)
.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
DualInputPlanNode join = (DualInputPlanNode) sink.getInput().getSource();
assertEquals(ShipStrategyType.PARTITION_CUSTOM, join.getInput1().getShipStrategy());
assertEquals(ShipStrategyType.PARTITION_CUSTOM, join.getInput2().getShipStrategy());
assertEquals(partitioner, join.getInput1().getPartitioner());
assertEquals(partitioner, join.getInput2().getPartitioner());
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testIncompatibleHashAndCustomPartitioning() {
try {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Long, Long, Long>> input =
env.fromElements(new Tuple3<Long, Long, Long>(0L, 0L, 0L));
DataSet<Tuple3<Long, Long, Long>> partitioned =
input
.partitionCustom(
new Partitioner<Long>() {
@Override
public int partition(Long key, int numPartitions) {
return 0;
}
},
0)
.map(new IdentityMapper<Tuple3<Long, Long, Long>>())
.withForwardedFields("0", "1", "2");
DataSet<Tuple3<Long, Long, Long>> grouped =
partitioned
.distinct(0, 1)
.groupBy(1)
.sortGroup(0, Order.ASCENDING)
.reduceGroup(new IdentityGroupReducer<Tuple3<Long, Long, Long>>())
.withForwardedFields("0", "1");
grouped
.join(partitioned, JoinHint.REPARTITION_HASH_FIRST)
.where(0)
.equalTo(0)
.with(new DummyFlatJoinFunction<Tuple3<Long, Long, Long>>())
.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
DualInputPlanNode coGroup = (DualInputPlanNode) sink.getInput().getSource();
assertEquals(ShipStrategyType.PARTITION_HASH, coGroup.getInput1().getShipStrategy());
assertTrue(
coGroup.getInput2().getShipStrategy() == ShipStrategyType.PARTITION_HASH
|| coGroup.getInput2().getShipStrategy() == ShipStrategyType.FORWARD);
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}