Examples with ValuesWriter org.apache.parquet.column.values.ValuesWriter used on opensource projects

Example 11 with ValuesWriter

use of org.apache.parquet.column.values.ValuesWriter in project parquet-mr by apache.

the class BenchmarkReadingRandomIntegers method prepare.

@BeforeClass
public static void prepare() throws IOException {
    Random random = new Random();
    data = new int[100000 * blockSize];
    for (int i = 0; i < data.length; i++) {
        data[i] = random.nextInt(100) - 200;
    }
    ValuesWriter delta = new DeltaBinaryPackingValuesWriterForInteger(blockSize, miniBlockNum, 100, 20000, new DirectByteBufferAllocator());
    ValuesWriter rle = new RunLengthBitPackingHybridValuesWriter(32, 100, 20000, new DirectByteBufferAllocator());
    for (int i = 0; i < data.length; i++) {
        delta.writeInteger(data[i]);
        rle.writeInteger(data[i]);
    }
    deltaBytes = delta.getBytes().toByteArray();
    rleBytes = rle.getBytes().toByteArray();
}