Examples with Vertex com.hazelcast.jet.core.Vertex used on opensource projects

Example 56 with Vertex

use of com.hazelcast.jet.core.Vertex in project hazelcast by hazelcast.

the class StreamSourceTransform method addToDag.

@Override
public void addToDag(Planner p, Context context) {
    if (emitsWatermarks || eventTimePolicy == null) {
        // Reached when the source either emits both JetEvents and watermarks
        // or neither. In these cases we don't have to insert watermarks.
        final ProcessorMetaSupplier metaSupplier = metaSupplierFn.apply(eventTimePolicy != null ? eventTimePolicy : noEventTime());
        determineLocalParallelism(metaSupplier.preferredLocalParallelism(), context, false);
        p.addVertex(this, name(), determinedLocalParallelism(), metaSupplier);
    } else {
        // ------------
        // |  sourceP   |
        // ------------
        // |
        // isolated
        // v
        // -------------
        // |  insertWmP  |
        // -------------
        String v1name = name();
        final ProcessorMetaSupplier metaSupplier = metaSupplierFn.apply(eventTimePolicy);
        determineLocalParallelism(metaSupplier.preferredLocalParallelism(), context, false);
        Vertex v1 = p.dag.newVertex(v1name, metaSupplier).localParallelism(determinedLocalParallelism());
        PlannerVertex pv2 = p.addVertex(this, v1name + "-add-timestamps", determinedLocalParallelism(), insertWatermarksP(eventTimePolicy));
        p.dag.edge(between(v1, pv2.v).isolated());
    }
}

Example 57 with Vertex

use of com.hazelcast.jet.core.Vertex in project hazelcast by hazelcast.

the class TestAbstractSqlConnector method fullScanReader.

@Nonnull
@Override
public Vertex fullScanReader(@Nonnull DAG dag, @Nonnull Table table_, @Nullable Expression<Boolean> predicate, @Nonnull List<Expression<?>> projection, @Nullable FunctionEx<ExpressionEvalContext, EventTimePolicy<JetSqlRow>> eventTimePolicyProvider) {
    TestTable table = (TestTable) table_;
    List<Object[]> rows = table.rows;
    boolean streaming = table.streaming;
    FunctionEx<Context, TestDataGenerator> createContextFn = ctx -> {
        ExpressionEvalContext evalContext = ExpressionEvalContext.from(ctx);
        EventTimePolicy<JetSqlRow> eventTimePolicy = eventTimePolicyProvider == null ? EventTimePolicy.noEventTime() : eventTimePolicyProvider.apply(evalContext);
        return new TestDataGenerator(rows, predicate, projection, evalContext, eventTimePolicy, streaming);
    };
    ProcessorMetaSupplier pms = createProcessorSupplier(createContextFn);
    return dag.newUniqueVertex(table.toString(), pms);
}

Example 58 with Vertex

use of com.hazelcast.jet.core.Vertex in project hazelcast by hazelcast.

the class TestAllTypesSqlConnector method fullScanReader.

@Nonnull
@Override
public Vertex fullScanReader(@Nonnull DAG dag, @Nonnull Table table, @Nullable Expression<Boolean> predicate, @Nonnull List<Expression<?>> projection, @Nullable FunctionEx<ExpressionEvalContext, EventTimePolicy<JetSqlRow>> eventTimePolicyProvider) {
    if (eventTimePolicyProvider != null) {
        throw QueryException.error("Ordering function are not supported for " + TYPE_NAME + " mappings");
    }
    BatchSource<JetSqlRow> source = SourceBuilder.batch("batch", ExpressionEvalContext::from).<JetSqlRow>fillBufferFn((ctx, buf) -> {
        JetSqlRow row = ExpressionUtil.evaluate(predicate, projection, VALUES, ctx);
        if (row != null) {
            buf.add(row);
        }
        buf.close();
    }).build();
    ProcessorMetaSupplier pms = ((BatchSourceTransform<JetSqlRow>) source).metaSupplier;
    return dag.newUniqueVertex(table.toString(), pms);
}

Example 59 with Vertex

use of com.hazelcast.jet.core.Vertex in project hazelcast by hazelcast.

the class WriteFilePTest method test_rollByDate.

@Test
public void test_rollByDate() {
    int numItems = 10;
    DAG dag = new DAG();
    Vertex src = dag.newVertex("src", () -> new SlowSourceP(semaphore, numItems)).localParallelism(1);
    @SuppressWarnings("Convert2MethodRef") Vertex sink = dag.newVertex("sink", WriteFileP.metaSupplier(directory.toString(), Objects::toString, "utf-8", "SSS", DISABLE_ROLLING, true, (LongSupplier & Serializable) () -> clock.get()));
    dag.edge(between(src, sink));
    Job job = instance().getJet().newJob(dag);
    for (int i = 0; i < numItems; i++) {
        // When
        semaphore.release();
        String stringValue = i + System.lineSeparator();
        // Then
        Path file = directory.resolve(String.format("%03d-0", i));
        assertTrueEventually(() -> assertTrue("file not found: " + file, Files.exists(file)), 5);
        assertTrueEventually(() -> assertEquals(stringValue, new String(Files.readAllBytes(file), StandardCharsets.UTF_8)), 5);
        clock.incrementAndGet();
    }
    job.join();
}

Example 60 with Vertex

use of com.hazelcast.jet.core.Vertex in project hazelcast by hazelcast.

the class WriteFilePTest method when_slowSource_then_fileFlushedAfterEachItem.

@Test
public void when_slowSource_then_fileFlushedAfterEachItem() {
    // Given
    int numItems = 10;
    DAG dag = new DAG();
    Vertex source = dag.newVertex("source", () -> new SlowSourceP(semaphore, numItems)).localParallelism(1);
    Vertex sink = dag.newVertex("sink", writeFileP(directory.toString(), StandardCharsets.UTF_8, null, DISABLE_ROLLING, true, Object::toString)).localParallelism(1);
    dag.edge(between(source, sink));
    Job job = instance().getJet().newJob(dag);
    for (int i = 0; i < numItems; i++) {
        // When
        semaphore.release();
        int finalI = i;
        // Then
        assertTrueEventually(() -> checkFileContents(0, finalI + 1, false, false, true), 5);
    }
    // wait for the job to finish
    job.join();
}