Examples with FixedSizeFrame org.apache.hyracks.api.comm.FixedSizeFrame used on opensource projects

Example 1 with FixedSizeFrame

use of org.apache.hyracks.api.comm.FixedSizeFrame in project asterixdb by apache.

the class AbstractTupleMemoryManagerTest method prepareVariableSizeTuples.

protected Map<Integer, Integer> prepareVariableSizeTuples() throws HyracksDataException {
    Map<Integer, Integer> dataSet = new HashMap<>();
    ByteBuffer buffer = ByteBuffer.allocate(Common.BUDGET);
    FixedSizeFrame frame = new FixedSizeFrame(buffer);
    FrameTupleAppender appender = new FrameTupleAppender();
    appender.reset(frame, true);
    for (int i = 0; true; i++) {
        tupleBuilder.reset();
        tupleBuilder.addField(fieldsSerDer[0], i);
        tupleBuilder.addField(fieldsSerDer[1], Utility.repeatString('a', i));
        if (!appender.append(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray(), 0, tupleBuilder.getSize())) {
            break;
        }
        dataSet.put(i, tupleBuilder.getSize() + tupleBuilder.getFieldEndOffsets().length * 4);
    }
    inFTA.reset(buffer);
    return dataSet;
}

Example 2 with FixedSizeFrame

use of org.apache.hyracks.api.comm.FixedSizeFrame in project asterixdb by apache.

the class VariableTupleMemoryManagerTest method deleteRandomSelectedTuples.

private ByteBuffer deleteRandomSelectedTuples(Map<Integer, Integer> map, Map<TuplePointer, Integer> mapInserted, int minNumOfRecordTobeDeleted) throws HyracksDataException {
    ByteBuffer buffer = ByteBuffer.allocate(Common.BUDGET);
    FixedSizeFrame frame = new FixedSizeFrame(buffer);
    FrameTupleAppender appender = new FrameTupleAppender();
    appender.reset(frame, true);
    assert (minNumOfRecordTobeDeleted < mapInserted.size());
    int countDeleted = minNumOfRecordTobeDeleted + random.nextInt(mapInserted.size() - minNumOfRecordTobeDeleted);
    ITuplePointerAccessor accessor = tupleMemoryManager.createTuplePointerAccessor();
    for (int i = 0; i < countDeleted; i++) {
        Iterator<Map.Entry<TuplePointer, Integer>> iter = mapInserted.entrySet().iterator();
        assert (iter.hasNext());
        Map.Entry<TuplePointer, Integer> pair = iter.next();
        accessor.reset(pair.getKey());
        appender.append(accessor.getBuffer().array(), accessor.getTupleStartOffset(), accessor.getTupleLength());
        map.remove(pair.getValue());
        tupleMemoryManager.deleteTuple(pair.getKey());
        iter.remove();
    }
    return buffer;
}

Example 3 with FixedSizeFrame

use of org.apache.hyracks.api.comm.FixedSizeFrame in project asterixdb by apache.

the class VariableFramesMemoryManagerTest method prepareRandomTuples.

private HashMap<Integer, Integer> prepareRandomTuples() throws HyracksDataException {
    frameList.clear();
    HashMap<Integer, Integer> set = new HashMap<>(NUM_MIN_FRAME);
    int[] fieldSlot = { 0 };
    int id = 0;
    int size = 0;
    while (size < BUDGET) {
        int tupleLength = random.nextInt(BUDGET / 3) + 4;
        IFrame frame = new FixedSizeFrame(Common.commonFrameManager.allocateFrame(FrameHelper.calcAlignedFrameSizeToStore(1, tupleLength, MIN_FRAME_SIZE)));
        IFrameTupleAppender appender = new FrameTupleAppender();
        appender.reset(frame, true);
        //            System.out.println("id:" + id + ",frameSize:" + frame.getInitialFrameSize() / MIN_FRAME_SIZE);
        ByteBuffer buffer = ByteBuffer.allocate(tupleLength);
        buffer.putInt(0, id);
        assertTrue(appender.append(fieldSlot, buffer.array(), 0, buffer.capacity()));
        set.put(id++, tupleLength);
        size += frame.getFrameSize();
        frameList.add(frame);
    }
    return set;
}

Example 4 with FixedSizeFrame

use of org.apache.hyracks.api.comm.FixedSizeFrame in project asterixdb by apache.

the class VariableFramesMemoryManagerTest method prepareTuples.

private HashMap<Integer, Integer> prepareTuples() throws HyracksDataException {
    frameList.clear();
    HashMap<Integer, Integer> set = new HashMap<>(NUM_MIN_FRAME);
    for (int i = 0; i < NUM_MIN_FRAME; ++i) {
        IFrame frame = new FixedSizeFrame(Common.commonFrameManager.allocateFrame(MIN_FRAME_SIZE));
        IFrameTupleAppender appender = new FrameTupleAppender();
        appender.reset(frame, true);
        int[] fieldSlot = { 0 };
        ByteBuffer buffer = ByteBuffer.allocate(MIN_FRAME_SIZE / 2);
        buffer.putInt(0, i);
        appender.append(fieldSlot, buffer.array(), 0, buffer.capacity());
        set.put(i, buffer.capacity());
        frameList.add(frame);
    }
    return set;
}

Example 5 with FixedSizeFrame

use of org.apache.hyracks.api.comm.FixedSizeFrame in project asterixdb by apache.

the class AbstractTupleMemoryManagerTest method prepareFixedSizeTuples.

protected Map<Integer, Integer> prepareFixedSizeTuples(int tuplePerFrame, int extraMetaBytePerFrame, int extraMetaBytePerRecord) throws HyracksDataException {
    Map<Integer, Integer> dataSet = new HashMap<>();
    ByteBuffer buffer = ByteBuffer.allocate(Common.BUDGET);
    FixedSizeFrame frame = new FixedSizeFrame(buffer);
    FrameTupleAppender appender = new FrameTupleAppender();
    appender.reset(frame, true);
    int sizePerTuple = (Common.MIN_FRAME_SIZE - 1 - tuplePerFrame * 4 - 4 - extraMetaBytePerFrame) / tuplePerFrame;
    int sizeChar = //2byte to write str length
    sizePerTuple - extraMetaBytePerRecord - fieldsSerDer.length * 4 - 4 - 2;
    assert (sizeChar > 0);
    for (int i = 0; i < Common.NUM_MIN_FRAME * tuplePerFrame; i++) {
        tupleBuilder.reset();
        tupleBuilder.addField(fieldsSerDer[0], i);
        tupleBuilder.addField(fieldsSerDer[1], Utility.repeatString('a', sizeChar));
        if (!appender.append(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray(), 0, tupleBuilder.getSize())) {
            assert false;
        }
        dataSet.put(i, tupleBuilder.getSize() + tupleBuilder.getFieldEndOffsets().length * 4);
    }
    inFTA.reset(buffer);
    return dataSet;
}