Examples with WindowAggregateBuilder com.hazelcast.jet.pipeline.WindowAggregateBuilder used on opensource projects

Example 1 with WindowAggregateBuilder

use of com.hazelcast.jet.pipeline.WindowAggregateBuilder in project hazelcast-jet by hazelcast.

the class WindowAggregateTransform_IntegrationTest method test_aggregate2_with_aggregateBuilder.

@Test
public void test_aggregate2_with_aggregateBuilder() {
    IMap<Long, String> map = instance.getMap("source");
    // key is timestamp
    map.put(0L, "foo");
    map.put(2L, "baz");
    map.put(10L, "flush-item");
    IMap<Long, String> map2 = instance.getMap("source1");
    // key is timestamp
    map2.put(0L, "faa");
    map2.put(2L, "buu");
    map2.put(10L, "flush-item");
    Pipeline p = Pipeline.create();
    StreamStage<Entry<Long, String>> stage1 = p.drawFrom(Sources.<Long, String>mapJournal("source1", START_FROM_OLDEST));
    stage1.addTimestamps(Entry::getKey, 0);
    WindowAggregateBuilder<Entry<Long, String>> b = p.drawFrom(Sources.<Long, String>mapJournal("source", START_FROM_OLDEST)).addTimestamps(Entry::getKey, 0).window(WindowDefinition.tumbling(2)).aggregateBuilder();
    Tag<Entry<Long, String>> tag0 = b.tag0();
    Tag<Entry<Long, String>> tag1 = b.add(stage1);
    b.build(AggregateOperation.withCreate(TwoBags::twoBags).andAccumulate(tag0, (acc, item0) -> acc.bag0().add(item0)).andAccumulate(tag1, (acc, item1) -> acc.bag1().add(item1)).andCombine(TwoBags::combineWith).andDeduct(TwoBags::deduct).andFinish(TwoBags::finish)).peek().drainTo(Sinks.list("sink"));
    instance.newJob(p);
    assertTrueEventually(() -> assertEquals(listToString(asList(new TimestampedItem<>(2, TwoBags.twoBags(asList(entry(0L, "foo")), asList(entry(0L, "faa")))), new TimestampedItem<>(4, TwoBags.twoBags(asList(entry(2L, "baz")), asList(entry(2L, "buu")))))), listToString(instance.getHazelcastInstance().getList("sink"))), 5);
}