Examples with RunLengthEncodedBlock com.facebook.presto.common.block.RunLengthEncodedBlock used on opensource projects

Example 1 with RunLengthEncodedBlock

use of com.facebook.presto.common.block.RunLengthEncodedBlock in project presto by prestodb.

the class LongDirectSelectiveStreamReader method getBlockView.

@Override
public BlockLease getBlockView(int[] positions, int positionCount) {
    checkArgument(outputPositionCount > 0, "outputPositionCount must be greater than zero");
    checkState(outputRequired, "This stream reader doesn't produce output");
    checkState(positionCount <= outputPositionCount, "Not enough values");
    if (allNulls) {
        return newLease(new RunLengthEncodedBlock(outputType.createBlockBuilder(null, 1).appendNull().build(), positionCount));
    }
    return buildOutputBlockView(positions, positionCount, nullsAllowed && presentStream != null);
}

Example 2 with RunLengthEncodedBlock

use of com.facebook.presto.common.block.RunLengthEncodedBlock in project presto by prestodb.

the class TimestampSelectiveStreamReader method getBlockView.

@Override
public BlockLease getBlockView(int[] positions, int positionCount) {
    checkArgument(outputPositionCount > 0, "outputPositionCount must be greater than zero");
    checkState(outputRequired, "This stream reader doesn't produce output");
    checkState(positionCount <= outputPositionCount, "Not enough values");
    checkState(!valuesInUse, "BlockLease hasn't been closed yet");
    if (allNulls) {
        return newLease(new RunLengthEncodedBlock(NULL_BLOCK, positionCount));
    }
    boolean includeNulls = nullsAllowed && presentStream != null;
    if (positionCount != outputPositionCount) {
        compactValues(positions, positionCount, includeNulls);
    }
    return newLease(new LongArrayBlock(positionCount, Optional.ofNullable(includeNulls ? nulls : null), values));
}

Example 3 with RunLengthEncodedBlock

use of com.facebook.presto.common.block.RunLengthEncodedBlock in project presto by prestodb.

the class OrcFileWriter method appendRows.

@Override
public void appendRows(Page dataPage) {
    Block[] blocks = new Block[fileInputColumnIndexes.length];
    for (int i = 0; i < fileInputColumnIndexes.length; i++) {
        int inputColumnIndex = fileInputColumnIndexes[i];
        if (inputColumnIndex < 0) {
            blocks[i] = new RunLengthEncodedBlock(nullBlocks.get(i), dataPage.getPositionCount());
        } else {
            blocks[i] = dataPage.getBlock(inputColumnIndex);
        }
    }
    Page page = new Page(dataPage.getPositionCount(), blocks);
    try {
        orcWriter.write(page);
        rowCount += page.getPositionCount();
    } catch (IOException | UncheckedIOException e) {
        throw new PrestoException(HIVE_WRITER_DATA_ERROR, e);
    }
}

Example 4 with RunLengthEncodedBlock

use of com.facebook.presto.common.block.RunLengthEncodedBlock in project presto by prestodb.

the class ByteSelectiveStreamReader method getBlockView.

@Override
public BlockLease getBlockView(int[] positions, int positionCount) {
    checkArgument(outputPositionCount > 0, "outputPositionCount must be greater than zero");
    checkState(outputRequired, "This stream reader doesn't produce output");
    checkState(positionCount <= outputPositionCount, "Not enough values");
    checkState(!valuesInUse, "BlockLease hasn't been closed yet");
    if (allNulls) {
        return newLease(new RunLengthEncodedBlock(NULL_BLOCK, positionCount));
    }
    boolean includeNulls = nullsAllowed && presentStream != null;
    if (positionCount != outputPositionCount) {
        compactValues(positions, positionCount, includeNulls);
    }
    return newLease(new ByteArrayBlock(positionCount, Optional.ofNullable(includeNulls ? nulls : null), values));
}

Example 5 with RunLengthEncodedBlock

use of com.facebook.presto.common.block.RunLengthEncodedBlock in project presto by prestodb.

the class SliceDictionarySelectiveReader method getBlockView.

@Override
public BlockLease getBlockView(int[] positions, int positionCount) {
    checkArgument(outputPositionCount > 0, "outputPositionCount must be greater than zero");
    checkState(outputRequired, "This stream reader doesn't produce output");
    checkState(positionCount <= outputPositionCount, "Not enough values");
    checkState(!valuesInUse, "BlockLease hasn't been closed yet");
    if (allNulls) {
        return newLease(new RunLengthEncodedBlock(outputType.createBlockBuilder(null, 1).appendNull().build(), positionCount));
    }
    if (positionCount < outputPositionCount) {
        compactValues(positions, positionCount);
    }
    wrapDictionaryIfNecessary();
    return newLease(new DictionaryBlock(positionCount, dictionary, values));
}