Examples with LongAccumulator com.hazelcast.jet.accumulator.LongAccumulator used on opensource projects

Example 41 with LongAccumulator

use of com.hazelcast.jet.accumulator.LongAccumulator in project hazelcast-jet by hazelcast.

the class AggregateOperation2Test method when_withCombiningAccumulateFn_then_accumulateFnCombines.

@Test
public void when_withCombiningAccumulateFn_then_accumulateFnCombines() {
    // Given
    AggregateOperation2<Object, Object, LongAccumulator, LongAccumulator> aggrOp = AggregateOperation.withCreate(LongAccumulator::new).andAccumulate0((acc, item) -> acc.addAllowingOverflow(1)).andAccumulate1((acc, item) -> acc.addAllowingOverflow(10)).andCombine(LongAccumulator::addAllowingOverflow).andIdentityFinish();
    AggregateOperation1<LongAccumulator, LongAccumulator, LongAccumulator> combiningAggrOp = aggrOp.withCombiningAccumulateFn(wholeItem());
    DistributedBiConsumer<? super LongAccumulator, ? super LongAccumulator> accFn = combiningAggrOp.accumulateFn();
    LongAccumulator partialAcc1 = combiningAggrOp.createFn().get();
    LongAccumulator partialAcc2 = combiningAggrOp.createFn().get();
    LongAccumulator combinedAcc = combiningAggrOp.createFn().get();
    // When
    partialAcc1.set(2);
    partialAcc2.set(3);
    accFn.accept(combinedAcc, partialAcc1);
    accFn.accept(combinedAcc, partialAcc2);
    // Then
    assertEquals(5, combinedAcc.get());
}

Example 42 with LongAccumulator

use of com.hazelcast.jet.accumulator.LongAccumulator in project hazelcast-jet by hazelcast.

the class AggregateOperation3Test method when_withCombiningAccumulateFn_then_accumulateFnCombines.

@Test
public void when_withCombiningAccumulateFn_then_accumulateFnCombines() {
    // Given
    AggregateOperation3<Object, Object, Object, LongAccumulator, LongAccumulator> aggrOp = AggregateOperation.withCreate(LongAccumulator::new).andAccumulate0((acc, item) -> acc.addAllowingOverflow(1)).andAccumulate1((acc, item) -> acc.addAllowingOverflow(10)).andAccumulate2((acc, item) -> acc.addAllowingOverflow(100)).andCombine(LongAccumulator::addAllowingOverflow).andIdentityFinish();
    AggregateOperation1<LongAccumulator, LongAccumulator, LongAccumulator> combiningAggrOp = aggrOp.withCombiningAccumulateFn(wholeItem());
    DistributedBiConsumer<? super LongAccumulator, ? super LongAccumulator> accFn = combiningAggrOp.accumulateFn();
    LongAccumulator partialAcc1 = combiningAggrOp.createFn().get();
    LongAccumulator partialAcc2 = combiningAggrOp.createFn().get();
    LongAccumulator combinedAcc = combiningAggrOp.createFn().get();
    // When
    partialAcc1.set(2);
    partialAcc2.set(3);
    accFn.accept(combinedAcc, partialAcc1);
    accFn.accept(combinedAcc, partialAcc2);
    // Then
    assertEquals(5, combinedAcc.get());
}

Example 43 with LongAccumulator

use of com.hazelcast.jet.accumulator.LongAccumulator in project hazelcast-jet by hazelcast.

the class AggregateOperationTest method when_withCombiningAccumulateFn_then_accumulateFnCombines.

@Test
public void when_withCombiningAccumulateFn_then_accumulateFnCombines() {
    // Given
    AggregateOperation<LongAccumulator, Long> aggrOp = AggregateOperation.withCreate(LongAccumulator::new).andAccumulate(tag0(), (acc, item) -> acc.addAllowingOverflow(1)).andAccumulate(tag1(), (acc, item) -> acc.addAllowingOverflow(10)).andCombine(LongAccumulator::addAllowingOverflow).andFinish(LongAccumulator::get);
    AggregateOperation1<LongAccumulator, LongAccumulator, Long> combiningAggrOp = aggrOp.withCombiningAccumulateFn(wholeItem());
    DistributedBiConsumer<? super LongAccumulator, ? super Object> accFn = combiningAggrOp.accumulateFn(tag0());
    LongAccumulator partialAcc1 = combiningAggrOp.createFn().get();
    LongAccumulator partialAcc2 = combiningAggrOp.createFn().get();
    LongAccumulator combinedAcc = combiningAggrOp.createFn().get();
    // When
    partialAcc1.set(2);
    partialAcc2.set(3);
    accFn.accept(combinedAcc, partialAcc1);
    accFn.accept(combinedAcc, partialAcc2);
    // Then
    assertEquals(5, combinedAcc.get());
}