Examples with AdaptiveIntegralCodec org.apache.carbondata.core.datastore.page.encoding.adaptive.AdaptiveIntegralCodec used on opensource projects

Example 6 with AdaptiveIntegralCodec

use of org.apache.carbondata.core.datastore.page.encoding.adaptive.AdaptiveIntegralCodec in project carbondata by apache.

the class TestEncodingFactory method testSelectProperDeltaType.

@Test
public void testSelectProperDeltaType() {
    PrimitivePageStatsCollector primitivePageStatsCollector = PrimitivePageStatsCollector.newInstance(DataTypes.LONG);
    // for Byte
    primitivePageStatsCollector.update((long) Byte.MAX_VALUE);
    ColumnPageCodec columnPageCodec = DefaultEncodingFactory.selectCodecByAlgorithmForIntegral(primitivePageStatsCollector);
    assert (columnPageCodec instanceof AdaptiveIntegralCodec);
    assert (DataTypes.BYTE == ((AdaptiveIntegralCodec) columnPageCodec).getTargetDataType());
    // for Short
    primitivePageStatsCollector.update((long) Short.MAX_VALUE);
    columnPageCodec = DefaultEncodingFactory.selectCodecByAlgorithmForIntegral(primitivePageStatsCollector);
    assert (columnPageCodec instanceof AdaptiveIntegralCodec);
    assert (DataTypes.SHORT == ((AdaptiveIntegralCodec) columnPageCodec).getTargetDataType());
    // for int
    primitivePageStatsCollector.update((long) Integer.MAX_VALUE);
    columnPageCodec = DefaultEncodingFactory.selectCodecByAlgorithmForIntegral(primitivePageStatsCollector);
    assert (columnPageCodec instanceof AdaptiveIntegralCodec);
    assert (DataTypes.INT == ((AdaptiveIntegralCodec) columnPageCodec).getTargetDataType());
    // for long
    primitivePageStatsCollector.update(Long.MAX_VALUE);
    columnPageCodec = DefaultEncodingFactory.selectCodecByAlgorithmForIntegral(primitivePageStatsCollector);
    assert (columnPageCodec instanceof DirectCompressCodec);
    assert ("DirectCompressCodec".equals(columnPageCodec.getName()));
}