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From jackylk <...@git.apache.org>
Subject [GitHub] incubator-carbondata pull request #609: [CARBONDATA-726] Added code for V3 f...
Date Fri, 24 Feb 2017 04:01:38 GMT
Github user jackylk commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/609#discussion_r102875973
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/datastore/chunk/reader/dimension/v3/CompressedDimensionChunkFileBasedReaderV3.java
---
    @@ -0,0 +1,256 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements.  See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to You under the Apache License, Version 2.0
    + * (the "License"); you may not use this file except in compliance with
    + * the License.  You may obtain a copy of the License at
    + *
    + *    http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +package org.apache.carbondata.core.datastore.chunk.reader.dimension.v3;
    +
    +import java.io.IOException;
    +import java.nio.ByteBuffer;
    +
    +import org.apache.carbondata.core.datastore.FileHolder;
    +import org.apache.carbondata.core.datastore.chunk.DimensionColumnDataChunk;
    +import org.apache.carbondata.core.datastore.chunk.impl.ColumnGroupDimensionDataChunk;
    +import org.apache.carbondata.core.datastore.chunk.impl.DimensionRawColumnChunk;
    +import org.apache.carbondata.core.datastore.chunk.impl.FixedLengthDimensionDataChunk;
    +import org.apache.carbondata.core.datastore.chunk.impl.VariableLengthDimensionDataChunk;
    +import org.apache.carbondata.core.datastore.chunk.reader.dimension.v2.CompressedDimensionChunkFileBasedReaderV2;
    +import org.apache.carbondata.core.datastore.columnar.UnBlockIndexer;
    +import org.apache.carbondata.core.metadata.blocklet.BlockletInfo;
    +import org.apache.carbondata.core.util.CarbonUtil;
    +import org.apache.carbondata.format.DataChunk2;
    +import org.apache.carbondata.format.DataChunk3;
    +import org.apache.carbondata.format.Encoding;
    +
    +import org.apache.commons.lang.ArrayUtils;
    +
    +/**
    + * Dimension column V3 Reader class which will be used to read and uncompress
    + * V3 format data
    + * data format
    + * Data Format
    + * <Column1 Data ChunkV3><Column1<Page1><Page2><Page3><Page4>>
    + * <Column2 Data ChunkV3><Column2<Page1><Page2><Page3><Page4>>
    + * <Column3 Data ChunkV3><Column3<Page1><Page2><Page3><Page4>>
    + * <Column4 Data ChunkV3><Column4<Page1><Page2><Page3><Page4>>
    + */
    +public class CompressedDimensionChunkFileBasedReaderV3
    +    extends CompressedDimensionChunkFileBasedReaderV2 {
    --- End diff --
    
    make one abstract class and put all dependent function in that class. V3 should not depend
on V2 reader


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