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

Example 11 with SlidingWindowPolicy

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

the class WindowGroupTransform method addSlidingWindowTwoStage.

// ---------       ---------
// | source0 | ... | sourceN |
// ---------       ---------
// |               |
// local           local
// partitioned     partitioned
// v               v
// --------------------
// | accumulateByFrameP |
// --------------------
// |
// distributed
// partitioned
// v
// -------------------------
// | combineToSlidingWindowP |
// -------------------------
private void addSlidingWindowTwoStage(Planner p, SlidingWindowDefinition wDef) {
    SlidingWindowPolicy winPolicy = slidingWinPolicy(wDef.windowSize(), wDef.slideBy());
    Vertex v1 = p.dag.newVertex(name() + FIRST_STAGE_VERTEX_NAME_SUFFIX, accumulateByFrameP(keyFns, nCopies(keyFns.size(), (ToLongFunctionEx<JetEvent<?>>) JetEvent::timestamp), TimestampKind.EVENT, winPolicy, aggrOp));
    v1.localParallelism(determinedLocalParallelism());
    PlannerVertex pv2 = p.addVertex(this, name(), determinedLocalParallelism(), combineToSlidingWindowP(winPolicy, aggrOp, jetEventOfKeyedWindowResultFn()));
    p.addEdges(this, v1, (e, ord) -> e.partitioned(keyFns.get(ord), HASH_CODE));
    p.dag.edge(between(v1, pv2.v).distributed().partitioned(entryKey()));
}

Example 12 with SlidingWindowPolicy

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

the class CreateDagVisitor method onSlidingWindow.

public Vertex onSlidingWindow(SlidingWindowPhysicalRel rel) {
    int orderingFieldIndex = rel.orderingFieldIndex();
    FunctionEx<ExpressionEvalContext, SlidingWindowPolicy> windowPolicySupplier = rel.windowPolicyProvider();
    // this vertex is used only if there's no aggregation by a window bound
    Vertex vertex = dag.newUniqueVertex("Sliding-Window", flatMapUsingServiceP(ServiceFactories.nonSharedService(ctx -> {
        ExpressionEvalContext evalContext = ExpressionEvalContext.from(ctx);
        SlidingWindowPolicy windowPolicy = windowPolicySupplier.apply(evalContext);
        return row -> WindowUtils.addWindowBounds(row, orderingFieldIndex, windowPolicy);
    }), (BiFunctionEx<Function<JetSqlRow, Traverser<JetSqlRow>>, JetSqlRow, Traverser<JetSqlRow>>) Function::apply));
    connectInput(rel.getInput(), vertex, null);
    return vertex;
}

Example 13 with SlidingWindowPolicy

use of com.hazelcast.jet.core.SlidingWindowPolicy in project hazelcast-jet by hazelcast.

the class WindowAggregateTransform method addSlidingWindowTwoStage.

// --------        ---------
// | source0 | ... | sourceN |
// --------        ---------
// |               |
// local           local
// unicast         unicast
// v               v
// --------------------
// | accumulateByFrameP | keyFn = constantKey()
// --------------------
// |
// distributed
// all-to-one
// v
// -------------------------
// | combineToSlidingWindowP | local parallelism = 1
// -------------------------
private void addSlidingWindowTwoStage(Planner p, SlidingWindowDef wDef) {
    String namePrefix = p.uniqueVertexName(name(), "-step");
    SlidingWindowPolicy winPolicy = wDef.toSlidingWindowPolicy();
    Vertex v1 = p.dag.newVertex(namePrefix + '1', accumulateByFrameP(nCopies(aggrOp.arity(), constantKey()), nCopies(aggrOp.arity(), (DistributedToLongFunction<JetEvent>) JetEvent::timestamp), TimestampKind.EVENT, winPolicy, aggrOp));
    v1.localParallelism(localParallelism());
    PlannerVertex pv2 = p.addVertex(this, namePrefix + '2', 1, combineToSlidingWindowP(winPolicy, aggrOp, mapToOutputFn.toKeyedWindowResultFn()));
    p.addEdges(this, v1);
    p.dag.edge(between(v1, pv2.v).distributed().allToOne());
}

Example 14 with SlidingWindowPolicy

use of com.hazelcast.jet.core.SlidingWindowPolicy in project hazelcast-jet by hazelcast.

the class SlidingWindowP_failoverTest method init.

private void init(ProcessingGuarantee guarantee) {
    SlidingWindowPolicy wDef = SlidingWindowPolicy.tumblingWinPolicy(1);
    AggregateOperation1<Object, LongAccumulator, Long> aggrOp = counting();
    p = new SlidingWindowP<>(singletonList(entryKey()), singletonList((DistributedToLongFunction<Entry<?, Long>>) Entry::getValue), wDef, aggrOp, TimestampedEntry::new, true);
    Outbox outbox = new TestOutbox(128);
    Context context = new TestProcessorContext().setProcessingGuarantee(guarantee);
    p.init(outbox, context);
}