Examples with BufferBuilder org.apache.flink.runtime.io.network.buffer.BufferBuilder used on opensource projects

Example 51 with BufferBuilder

use of org.apache.flink.runtime.io.network.buffer.BufferBuilder in project flink by apache.

the class IteratorWrappingTestSingleInputGate method wrapIterator.

private IteratorWrappingTestSingleInputGate<T> wrapIterator(MutableObjectIterator<T> iterator) throws IOException, InterruptedException {
    inputIterator = iterator;
    serializer = new DataOutputSerializer(128);
    // The input iterator can produce an infinite stream. That's why we have to serialize each
    // record on demand and cannot do it upfront.
    final BufferAndAvailabilityProvider answer = new BufferAndAvailabilityProvider() {

        private boolean hasData = inputIterator.next(reuse) != null;

        @Override
        public Optional<BufferAndAvailability> getBufferAvailability() throws IOException {
            if (hasData) {
                ByteBuffer serializedRecord = RecordWriter.serializeRecord(serializer, reuse);
                BufferBuilder bufferBuilder = createBufferBuilder(bufferSize);
                BufferConsumer bufferConsumer = bufferBuilder.createBufferConsumer();
                bufferBuilder.appendAndCommit(serializedRecord);
                hasData = inputIterator.next(reuse) != null;
                // Call getCurrentBuffer to ensure size is set
                final Buffer.DataType nextDataType = hasData ? Buffer.DataType.DATA_BUFFER : Buffer.DataType.EVENT_BUFFER;
                return Optional.of(new BufferAndAvailability(bufferConsumer.build(), nextDataType, 0, 0));
            } else {
                inputChannel.setReleased();
                return Optional.of(new BufferAndAvailability(EventSerializer.toBuffer(EndOfPartitionEvent.INSTANCE, false), Buffer.DataType.NONE, 0, 0));
            }
        }
    };
    inputChannel.addBufferAndAvailability(answer);
    inputGate.setInputChannels(inputChannel);
    return this;
}

Example 52 with BufferBuilder

use of org.apache.flink.runtime.io.network.buffer.BufferBuilder in project flink by apache.

the class BufferWritingResultPartition method emitRecord.

@Override
public void emitRecord(ByteBuffer record, int targetSubpartition) throws IOException {
    totalWrittenBytes += record.remaining();
    BufferBuilder buffer = appendUnicastDataForNewRecord(record, targetSubpartition);
    while (record.hasRemaining()) {
        // full buffer, partial record
        finishUnicastBufferBuilder(targetSubpartition);
        buffer = appendUnicastDataForRecordContinuation(record, targetSubpartition);
    }
    if (buffer.isFull()) {
        // full buffer, full record
        finishUnicastBufferBuilder(targetSubpartition);
    }
// partial buffer, full record
}

Example 53 with BufferBuilder

use of org.apache.flink.runtime.io.network.buffer.BufferBuilder in project flink by apache.

the class HashBasedDataBuffer method release.

@Override
public void release() {
    if (isReleased) {
        return;
    }
    isReleased = true;
    for (int channel = 0; channel < builders.length; ++channel) {
        BufferBuilder builder = builders[channel];
        if (builder != null) {
            builder.close();
            builders[channel] = null;
        }
    }
    for (ArrayDeque<BufferConsumer> buffer : buffers) {
        BufferConsumer consumer = buffer.poll();
        while (consumer != null) {
            consumer.close();
            consumer = buffer.poll();
        }
    }
}

Example 54 with BufferBuilder

use of org.apache.flink.runtime.io.network.buffer.BufferBuilder in project flink by apache.

the class HashBasedDataBuffer method finish.

@Override
public void finish() {
    checkState(!isFull, "DataBuffer must not be full.");
    checkState(!isFinished, "DataBuffer is already finished.");
    isFull = true;
    isFinished = true;
    for (int channel = 0; channel < builders.length; ++channel) {
        BufferBuilder builder = builders[channel];
        if (builder != null) {
            builder.finish();
            buffers[channel].add(builder.createBufferConsumerFromBeginning());
            builder.close();
            builders[channel] = null;
        }
    }
}

Example 55 with BufferBuilder

use of org.apache.flink.runtime.io.network.buffer.BufferBuilder in project flink by apache.

the class SpanningRecordSerializationTest method setNextBufferForSerializer.

private static BufferAndSerializerResult setNextBufferForSerializer(ByteBuffer serializedRecord, int segmentSize) throws IOException {
    // create a bufferBuilder with some random starting offset to properly test handling buffer
    // slices in the
    // deserialization code.
    int startingOffset = segmentSize > 2 ? RANDOM.nextInt(segmentSize / 2) : 0;
    BufferBuilder bufferBuilder = createFilledBufferBuilder(segmentSize + startingOffset, startingOffset);
    BufferConsumer bufferConsumer = bufferBuilder.createBufferConsumer();
    bufferConsumer.build().recycleBuffer();
    // Closing the BufferBuilder here just allow to be sure that Buffer will be recovered when
    // BufferConsumer will be closed.
    bufferBuilder.close();
    bufferBuilder.appendAndCommit(serializedRecord);
    return new BufferAndSerializerResult(bufferBuilder, bufferConsumer, bufferBuilder.isFull(), !serializedRecord.hasRemaining());
}