Examples with BlockResettableMutableObjectIterator org.apache.flink.runtime.operators.resettable.BlockResettableMutableObjectIterator used on opensource projects

Example 1 with BlockResettableMutableObjectIterator

use of org.apache.flink.runtime.operators.resettable.BlockResettableMutableObjectIterator in project flink by apache.

the class CrossDriver method runBlockedOuterFirst.

private void runBlockedOuterFirst() throws Exception {
    if (LOG.isDebugEnabled()) {
        LOG.debug(this.taskContext.formatLogString("Running Cross with Block-Nested-Loops: " + "First input is outer (blocking) side, second input is inner (spilling) side."));
    }
    final Counter numRecordsIn = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
    final Counter numRecordsOut = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsOutCounter();
    final MutableObjectIterator<T1> in1 = new CountingMutableObjectIterator<>(this.taskContext.<T1>getInput(0), numRecordsIn);
    final MutableObjectIterator<T2> in2 = new CountingMutableObjectIterator<>(this.taskContext.<T2>getInput(1), numRecordsIn);
    final TypeSerializer<T1> serializer1 = this.taskContext.<T1>getInputSerializer(0).getSerializer();
    final TypeSerializer<T2> serializer2 = this.taskContext.<T2>getInputSerializer(1).getSerializer();
    final BlockResettableMutableObjectIterator<T1> blockVals = new BlockResettableMutableObjectIterator<T1>(this.memManager, in1, serializer1, this.memPagesForBlockSide, this.taskContext.getContainingTask());
    this.blockIter = blockVals;
    final SpillingResettableMutableObjectIterator<T2> spillVals = new SpillingResettableMutableObjectIterator<T2>(in2, serializer2, this.memManager, this.taskContext.getIOManager(), this.memPagesForSpillingSide, this.taskContext.getContainingTask());
    this.spillIter = spillVals;
    final CrossFunction<T1, T2, OT> crosser = this.taskContext.getStub();
    final Collector<OT> collector = new CountingCollector<>(this.taskContext.getOutputCollector(), numRecordsOut);
    if (objectReuseEnabled) {
        final T1 val1Reuse = serializer1.createInstance();
        final T2 val2Reuse = serializer2.createInstance();
        T1 val1;
        T2 val2;
        // for all blocks
        do {
            // for all values from the spilling side
            while (this.running && ((val2 = spillVals.next(val2Reuse)) != null)) {
                // for all values in the block
                while ((val1 = blockVals.next(val1Reuse)) != null) {
                    collector.collect(crosser.cross(val1, val2));
                }
                blockVals.reset();
            }
            spillVals.reset();
        } while (this.running && blockVals.nextBlock());
    } else {
        T1 val1;
        T2 val2;
        // for all blocks
        do {
            // for all values from the spilling side
            while (this.running && ((val2 = spillVals.next()) != null)) {
                // for all values in the block
                while ((val1 = blockVals.next()) != null) {
                    collector.collect(crosser.cross(val1, serializer2.copy(val2)));
                }
                blockVals.reset();
            }
            spillVals.reset();
        } while (this.running && blockVals.nextBlock());
    }
}

Example 2 with BlockResettableMutableObjectIterator

use of org.apache.flink.runtime.operators.resettable.BlockResettableMutableObjectIterator in project flink by apache.

the class CrossDriver method runBlockedOuterSecond.

private void runBlockedOuterSecond() throws Exception {
    if (LOG.isDebugEnabled()) {
        LOG.debug(this.taskContext.formatLogString("Running Cross with Block-Nested-Loops: " + "First input is inner (spilling) side, second input is outer (blocking) side."));
    }
    final Counter numRecordsIn = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
    final Counter numRecordsOut = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsOutCounter();
    final MutableObjectIterator<T1> in1 = new CountingMutableObjectIterator<>(this.taskContext.<T1>getInput(0), numRecordsIn);
    final MutableObjectIterator<T2> in2 = new CountingMutableObjectIterator<>(this.taskContext.<T2>getInput(1), numRecordsIn);
    final TypeSerializer<T1> serializer1 = this.taskContext.<T1>getInputSerializer(0).getSerializer();
    final TypeSerializer<T2> serializer2 = this.taskContext.<T2>getInputSerializer(1).getSerializer();
    final SpillingResettableMutableObjectIterator<T1> spillVals = new SpillingResettableMutableObjectIterator<T1>(in1, serializer1, this.memManager, this.taskContext.getIOManager(), this.memPagesForSpillingSide, this.taskContext.getContainingTask());
    this.spillIter = spillVals;
    final BlockResettableMutableObjectIterator<T2> blockVals = new BlockResettableMutableObjectIterator<T2>(this.memManager, in2, serializer2, this.memPagesForBlockSide, this.taskContext.getContainingTask());
    this.blockIter = blockVals;
    final CrossFunction<T1, T2, OT> crosser = this.taskContext.getStub();
    final Collector<OT> collector = new CountingCollector<>(this.taskContext.getOutputCollector(), numRecordsOut);
    if (objectReuseEnabled) {
        final T1 val1Reuse = serializer1.createInstance();
        final T2 val2Reuse = serializer2.createInstance();
        T1 val1;
        T2 val2;
        // for all blocks
        do {
            // for all values from the spilling side
            while (this.running && ((val1 = spillVals.next(val1Reuse)) != null)) {
                // for all values in the block
                while (this.running && ((val2 = blockVals.next(val2Reuse)) != null)) {
                    collector.collect(crosser.cross(val1, val2));
                }
                blockVals.reset();
            }
            spillVals.reset();
        } while (this.running && blockVals.nextBlock());
    } else {
        T1 val1;
        T2 val2;
        // for all blocks
        do {
            // for all values from the spilling side
            while (this.running && ((val1 = spillVals.next()) != null)) {
                // for all values in the block
                while (this.running && ((val2 = blockVals.next()) != null)) {
                    collector.collect(crosser.cross(serializer1.copy(val1), val2));
                }
                blockVals.reset();
            }
            spillVals.reset();
        } while (this.running && blockVals.nextBlock());
    }
}