Examples with SupplierEx com.hazelcast.function.SupplierEx used on opensource projects

Example 6 with SupplierEx

use of com.hazelcast.function.SupplierEx in project hazelcast by hazelcast.

the class JobMetrics_NonSharedClusterTest method when_metricsCollectionOff_then_emptyMetrics.

@Test
public void when_metricsCollectionOff_then_emptyMetrics() {
    Config config = smallInstanceConfig();
    config.getMetricsConfig().setEnabled(false);
    HazelcastInstance inst = createHazelcastInstance(config);
    DAG dag = new DAG();
    dag.newVertex("v1", (SupplierEx<Processor>) NoOutputSourceP::new).localParallelism(1);
    Job job = inst.getJet().newJob(dag, JOB_CONFIG_WITH_METRICS);
    assertTrue(job.getMetrics().metrics().isEmpty());
}

Example 7 with SupplierEx

use of com.hazelcast.function.SupplierEx in project hazelcast by hazelcast.

the class SlidingWindowPTest method before.

@Before
public void before() {
    SlidingWindowPolicy winPolicy = slidingWinPolicy(4, 1);
    AggregateOperation1<Entry<?, Long>, LongAccumulator, Long> operation = AggregateOperation.withCreate(LongAccumulator::new).andAccumulate((LongAccumulator acc, Entry<?, Long> item) -> acc.add(item.getValue())).andCombine(LongAccumulator::add).andDeduct(hasDeduct ? LongAccumulator::subtract : null).andExportFinish(LongAccumulator::get);
    FunctionEx<?, Long> keyFn = t -> KEY;
    ToLongFunctionEx<Entry<Long, Long>> timestampFn = Entry::getKey;
    SupplierEx<Processor> procSupplier = singleStageProcessor ? aggregateToSlidingWindowP(singletonList(keyFn), singletonList(timestampFn), TimestampKind.EVENT, winPolicy, 0L, operation, KeyedWindowResult::new) : combineToSlidingWindowP(winPolicy, operation, KeyedWindowResult::new);
    // new supplier to save the last supplied instance
    supplier = () -> lastSuppliedProcessor = (SlidingWindowP) procSupplier.get();
}

Example 8 with SupplierEx

use of com.hazelcast.function.SupplierEx in project hazelcast by hazelcast.

the class JobRestartWithSnapshotTest method when_nodeDown_then_jobRestartsFromSnapshot.

@SuppressWarnings("unchecked")
private void when_nodeDown_then_jobRestartsFromSnapshot(boolean twoStage) throws Exception {
    /*
        Design of this test:

        It uses a random partitioned generator of source events. The events are
        Map.Entry(partitionId, timestamp). For each partition timestamps from
        0..elementsInPartition are generated.

        We start the test with two nodes and localParallelism(1) and 3 partitions
        for source. Source instances generate items at the same rate of 10 per
        second: this causes one instance to be twice as fast as the other in terms of
        timestamp. The source processor saves partition offsets similarly to how
        KafkaSources.kafka() and Sources.mapJournal() do.

        After some time we shut down one instance. The job restarts from the
        snapshot and all partitions are restored to single source processor
        instance. Partition offsets are very different, so the source is written
        in a way that it emits from the most-behind partition in order to not
        emit late events from more ahead partitions.

        Local parallelism of InsertWatermarkP is also 1 to avoid the edge case
        when different instances of InsertWatermarkP might initialize with first
        event in different frame and make them start the no-gap emission from
        different WM, which might cause the SlidingWindowP downstream to miss
        some of the first windows.

        The sink writes to an IMap which is an idempotent sink.

        The resulting contents of the sink map are compared to expected value.
        */
    DAG dag = new DAG();
    SlidingWindowPolicy wDef = SlidingWindowPolicy.tumblingWinPolicy(3);
    AggregateOperation1<Object, LongAccumulator, Long> aggrOp = counting();
    IMap<List<Long>, Long> result = instance1.getMap("result");
    result.clear();
    int numPartitions = 3;
    int elementsInPartition = 250;
    SupplierEx<Processor> sup = () -> new SequencesInPartitionsGeneratorP(numPartitions, elementsInPartition, true);
    Vertex generator = dag.newVertex("generator", throttle(sup, 30)).localParallelism(1);
    Vertex insWm = dag.newVertex("insWm", insertWatermarksP(eventTimePolicy(o -> ((Entry<Integer, Integer>) o).getValue(), limitingLag(0), wDef.frameSize(), wDef.frameOffset(), 0))).localParallelism(1);
    Vertex map = dag.newVertex("map", mapP((KeyedWindowResult kwr) -> entry(asList(kwr.end(), (long) (int) kwr.key()), kwr.result())));
    Vertex writeMap = dag.newVertex("writeMap", SinkProcessors.writeMapP("result"));
    if (twoStage) {
        Vertex aggregateStage1 = dag.newVertex("aggregateStage1", Processors.accumulateByFrameP(singletonList((FunctionEx<? super Object, ?>) t -> ((Entry<Integer, Integer>) t).getKey()), singletonList(t1 -> ((Entry<Integer, Integer>) t1).getValue()), TimestampKind.EVENT, wDef, aggrOp.withIdentityFinish()));
        Vertex aggregateStage2 = dag.newVertex("aggregateStage2", combineToSlidingWindowP(wDef, aggrOp, KeyedWindowResult::new));
        dag.edge(between(insWm, aggregateStage1).partitioned(entryKey())).edge(between(aggregateStage1, aggregateStage2).distributed().partitioned(entryKey())).edge(between(aggregateStage2, map));
    } else {
        Vertex aggregate = dag.newVertex("aggregate", Processors.aggregateToSlidingWindowP(singletonList((FunctionEx<Object, Integer>) t -> ((Entry<Integer, Integer>) t).getKey()), singletonList(t1 -> ((Entry<Integer, Integer>) t1).getValue()), TimestampKind.EVENT, wDef, 0L, aggrOp, KeyedWindowResult::new));
        dag.edge(between(insWm, aggregate).distributed().partitioned(entryKey())).edge(between(aggregate, map));
    }
    dag.edge(between(generator, insWm)).edge(between(map, writeMap));
    JobConfig config = new JobConfig();
    config.setProcessingGuarantee(EXACTLY_ONCE);
    config.setSnapshotIntervalMillis(1200);
    Job job = instance1.getJet().newJob(dag, config);
    JobRepository jobRepository = new JobRepository(instance1);
    int timeout = (int) (MILLISECONDS.toSeconds(config.getSnapshotIntervalMillis() * 3) + 8);
    waitForFirstSnapshot(jobRepository, job.getId(), timeout, false);
    waitForNextSnapshot(jobRepository, job.getId(), timeout, false);
    // wait a little more to emit something, so that it will be overwritten in the sink map
    Thread.sleep(300);
    instance2.getLifecycleService().terminate();
    // Now the job should detect member shutdown and restart from snapshot.
    // Let's wait until the next snapshot appears.
    waitForNextSnapshot(jobRepository, job.getId(), (int) (MILLISECONDS.toSeconds(config.getSnapshotIntervalMillis()) + 10), false);
    waitForNextSnapshot(jobRepository, job.getId(), timeout, false);
    job.join();
    // compute expected result
    Map<List<Long>, Long> expectedMap = new HashMap<>();
    for (long partition = 0; partition < numPartitions; partition++) {
        long cnt = 0;
        for (long value = 1; value <= elementsInPartition; value++) {
            cnt++;
            if (value % wDef.frameSize() == 0) {
                expectedMap.put(asList(value, partition), cnt);
                cnt = 0;
            }
        }
        if (cnt > 0) {
            expectedMap.put(asList(wDef.higherFrameTs(elementsInPartition - 1), partition), cnt);
        }
    }
    // check expected result
    if (!expectedMap.equals(result)) {
        System.out.println("All expected entries: " + expectedMap.entrySet().stream().map(Object::toString).collect(joining(", ")));
        System.out.println("All actual entries: " + result.entrySet().stream().map(Object::toString).collect(joining(", ")));
        System.out.println("Non-received expected items: " + expectedMap.keySet().stream().filter(key -> !result.containsKey(key)).map(Object::toString).collect(joining(", ")));
        System.out.println("Received non-expected items: " + result.entrySet().stream().filter(entry -> !expectedMap.containsKey(entry.getKey())).map(Object::toString).collect(joining(", ")));
        System.out.println("Different keys: ");
        for (Entry<List<Long>, Long> rEntry : result.entrySet()) {
            Long expectedValue = expectedMap.get(rEntry.getKey());
            if (expectedValue != null && !expectedValue.equals(rEntry.getValue())) {
                System.out.println("key: " + rEntry.getKey() + ", expected value: " + expectedValue + ", actual value: " + rEntry.getValue());
            }
        }
        System.out.println("-- end of different keys");
        assertEquals(expectedMap, new HashMap<>(result));
    }
}

Example 9 with SupplierEx

use of com.hazelcast.function.SupplierEx in project hazelcast by hazelcast.

the class JobRestartWithSnapshotTest method when_jobRestartedGracefully_then_noOutputDuplicated.

@Test
public void when_jobRestartedGracefully_then_noOutputDuplicated() {
    DAG dag = new DAG();
    int elementsInPartition = 100;
    SupplierEx<Processor> sup = () -> new SequencesInPartitionsGeneratorP(3, elementsInPartition, true);
    Vertex generator = dag.newVertex("generator", throttle(sup, 30)).localParallelism(1);
    Vertex sink = dag.newVertex("sink", writeListP("sink"));
    dag.edge(between(generator, sink));
    JobConfig config = new JobConfig();
    config.setProcessingGuarantee(EXACTLY_ONCE);
    // set long interval so that the first snapshot does not execute
    config.setSnapshotIntervalMillis(3600_000);
    Job job = instance1.getJet().newJob(dag, config);
    // wait for the job to start producing output
    List<Entry<Integer, Integer>> sinkList = instance1.getList("sink");
    assertTrueEventually(() -> assertTrue(sinkList.size() > 10));
    // When
    job.restart();
    job.join();
    // Then
    Set<Entry<Integer, Integer>> expected = IntStream.range(0, elementsInPartition).boxed().flatMap(i -> IntStream.range(0, 3).mapToObj(p -> entry(p, i))).collect(Collectors.toSet());
    assertEquals(expected, new HashSet<>(sinkList));
}

Example 10 with SupplierEx

use of com.hazelcast.function.SupplierEx in project hazelcast by hazelcast.

the class GracefulShutdown_LiteMasterTest method test.

@Test
public void test() {
    DummyStatefulP.parallelism = 2;
    DAG dag = new DAG();
    dag.newVertex("v", (SupplierEx<Processor>) DummyStatefulP::new).localParallelism(DummyStatefulP.parallelism);
    Job job = instance.getJet().newJob(dag, new JobConfig().setSnapshotIntervalMillis(DAYS.toMillis(1)).setProcessingGuarantee(EXACTLY_ONCE));
    assertJobStatusEventually(job, RUNNING, 10);
    DummyStatefulP.wasRestored = false;
    liteMaster.shutdown();
    assertJobStatusEventually(job, RUNNING, 10);
    assertTrueEventually(() -> assertTrue("snapshot wasn't restored", DummyStatefulP.wasRestored), 10);
    assertTrueAllTheTime(() -> assertEquals(RUNNING, job.getStatus()), 1);
}