Examples with BlockletIndex org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex used on opensource projects

Example 1 with BlockletIndex

use of org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex in project carbondata by apache.

the class AbstractDataFileFooterConverter method getBlockletIndexForDataFileFooter.

/**
   * Below method will be used to get blocklet index for data file meta
   *
   * @param blockletIndexList
   * @return blocklet index
   */
protected BlockletIndex getBlockletIndexForDataFileFooter(List<BlockletIndex> blockletIndexList) {
    BlockletIndex blockletIndex = new BlockletIndex();
    BlockletBTreeIndex blockletBTreeIndex = new BlockletBTreeIndex();
    blockletBTreeIndex.setStartKey(blockletIndexList.get(0).getBtreeIndex().getStartKey());
    blockletBTreeIndex.setEndKey(blockletIndexList.get(blockletIndexList.size() - 1).getBtreeIndex().getEndKey());
    blockletIndex.setBtreeIndex(blockletBTreeIndex);
    byte[][] currentMinValue = blockletIndexList.get(0).getMinMaxIndex().getMinValues().clone();
    byte[][] currentMaxValue = blockletIndexList.get(0).getMinMaxIndex().getMaxValues().clone();
    byte[][] minValue = null;
    byte[][] maxValue = null;
    for (int i = 1; i < blockletIndexList.size(); i++) {
        minValue = blockletIndexList.get(i).getMinMaxIndex().getMinValues();
        maxValue = blockletIndexList.get(i).getMinMaxIndex().getMaxValues();
        for (int j = 0; j < maxValue.length; j++) {
            if (ByteUtil.UnsafeComparer.INSTANCE.compareTo(currentMinValue[j], minValue[j]) > 0) {
                currentMinValue[j] = minValue[j].clone();
            }
            if (ByteUtil.UnsafeComparer.INSTANCE.compareTo(currentMaxValue[j], maxValue[j]) < 0) {
                currentMaxValue[j] = maxValue[j].clone();
            }
        }
    }
    BlockletMinMaxIndex minMax = new BlockletMinMaxIndex();
    minMax.setMaxValues(currentMaxValue);
    minMax.setMinValues(currentMinValue);
    blockletIndex.setMinMaxIndex(minMax);
    return blockletIndex;
}

Example 2 with BlockletIndex

use of org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex in project carbondata by apache.

the class AbstractDataFileFooterConverter method getBlockletIndex.

/**
   * Below method will be used to convert the blocklet index of thrift to
   * wrapper
   *
   * @param blockletIndexThrift
   * @return blocklet index wrapper
   */
protected BlockletIndex getBlockletIndex(org.apache.carbondata.format.BlockletIndex blockletIndexThrift) {
    org.apache.carbondata.format.BlockletBTreeIndex btreeIndex = blockletIndexThrift.getB_tree_index();
    org.apache.carbondata.format.BlockletMinMaxIndex minMaxIndex = blockletIndexThrift.getMin_max_index();
    return new BlockletIndex(new BlockletBTreeIndex(btreeIndex.getStart_key(), btreeIndex.getEnd_key()), new BlockletMinMaxIndex(minMaxIndex.getMin_values(), minMaxIndex.getMax_values()));
}

Example 3 with BlockletIndex

use of org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex in project carbondata by apache.

the class DataFileFooterConverter method readDataFileFooter.

/**
   * Below method will be used to convert thrift file meta to wrapper file meta
   */
@Override
public DataFileFooter readDataFileFooter(TableBlockInfo tableBlockInfo) throws IOException {
    DataFileFooter dataFileFooter = new DataFileFooter();
    FileHolder fileReader = null;
    try {
        long completeBlockLength = tableBlockInfo.getBlockLength();
        long footerPointer = completeBlockLength - 8;
        fileReader = FileFactory.getFileHolder(FileFactory.getFileType(tableBlockInfo.getFilePath()));
        long actualFooterOffset = fileReader.readLong(tableBlockInfo.getFilePath(), footerPointer);
        CarbonFooterReader reader = new CarbonFooterReader(tableBlockInfo.getFilePath(), actualFooterOffset);
        FileFooter footer = reader.readFooter();
        dataFileFooter.setVersionId(ColumnarFormatVersion.valueOf((short) footer.getVersion()));
        dataFileFooter.setNumberOfRows(footer.getNum_rows());
        dataFileFooter.setSegmentInfo(getSegmentInfo(footer.getSegment_info()));
        List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();
        List<org.apache.carbondata.format.ColumnSchema> table_columns = footer.getTable_columns();
        for (int i = 0; i < table_columns.size(); i++) {
            columnSchemaList.add(thriftColumnSchmeaToWrapperColumnSchema(table_columns.get(i)));
        }
        dataFileFooter.setColumnInTable(columnSchemaList);
        List<org.apache.carbondata.format.BlockletIndex> leaf_node_indices_Thrift = footer.getBlocklet_index_list();
        List<BlockletIndex> blockletIndexList = new ArrayList<BlockletIndex>();
        for (int i = 0; i < leaf_node_indices_Thrift.size(); i++) {
            BlockletIndex blockletIndex = getBlockletIndex(leaf_node_indices_Thrift.get(i));
            blockletIndexList.add(blockletIndex);
        }
        List<org.apache.carbondata.format.BlockletInfo> leaf_node_infos_Thrift = footer.getBlocklet_info_list();
        List<BlockletInfo> blockletInfoList = new ArrayList<BlockletInfo>();
        for (int i = 0; i < leaf_node_infos_Thrift.size(); i++) {
            BlockletInfo blockletInfo = getBlockletInfo(leaf_node_infos_Thrift.get(i));
            blockletInfo.setBlockletIndex(blockletIndexList.get(i));
            blockletInfoList.add(blockletInfo);
        }
        dataFileFooter.setBlockletList(blockletInfoList);
        dataFileFooter.setBlockletIndex(getBlockletIndexForDataFileFooter(blockletIndexList));
    } finally {
        if (null != fileReader) {
            fileReader.finish();
        }
    }
    return dataFileFooter;
}

Example 4 with BlockletIndex

use of org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex in project carbondata by apache.

the class DataFileFooterConverter2 method readDataFileFooter.

/**
   * Below method will be used to convert thrift file meta to wrapper file meta
   */
@Override
public DataFileFooter readDataFileFooter(TableBlockInfo tableBlockInfo) throws IOException {
    DataFileFooter dataFileFooter = new DataFileFooter();
    CarbonFooterReader reader = new CarbonFooterReader(tableBlockInfo.getFilePath(), tableBlockInfo.getBlockOffset());
    FileFooter footer = reader.readFooter();
    dataFileFooter.setVersionId(ColumnarFormatVersion.valueOf((short) footer.getVersion()));
    dataFileFooter.setNumberOfRows(footer.getNum_rows());
    dataFileFooter.setSegmentInfo(getSegmentInfo(footer.getSegment_info()));
    List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();
    List<org.apache.carbondata.format.ColumnSchema> table_columns = footer.getTable_columns();
    for (int i = 0; i < table_columns.size(); i++) {
        columnSchemaList.add(thriftColumnSchmeaToWrapperColumnSchema(table_columns.get(i)));
    }
    dataFileFooter.setColumnInTable(columnSchemaList);
    List<org.apache.carbondata.format.BlockletIndex> leaf_node_indices_Thrift = footer.getBlocklet_index_list();
    List<BlockletIndex> blockletIndexList = new ArrayList<BlockletIndex>();
    for (int i = 0; i < leaf_node_indices_Thrift.size(); i++) {
        BlockletIndex blockletIndex = getBlockletIndex(leaf_node_indices_Thrift.get(i));
        blockletIndexList.add(blockletIndex);
    }
    List<org.apache.carbondata.format.BlockletInfo2> leaf_node_infos_Thrift = footer.getBlocklet_info_list2();
    List<BlockletInfo> blockletInfoList = new ArrayList<BlockletInfo>();
    for (int i = 0; i < leaf_node_infos_Thrift.size(); i++) {
        BlockletInfo blockletInfo = getBlockletInfo(leaf_node_infos_Thrift.get(i), getNumberOfDimensionColumns(columnSchemaList));
        blockletInfo.setBlockletIndex(blockletIndexList.get(i));
        blockletInfoList.add(blockletInfo);
    }
    dataFileFooter.setBlockletList(blockletInfoList);
    dataFileFooter.setBlockletIndex(getBlockletIndexForDataFileFooter(blockletIndexList));
    return dataFileFooter;
}

Example 5 with BlockletIndex

use of org.apache.carbondata.core.metadata.blocklet.index.BlockletIndex in project carbondata by apache.

the class DataFileFooterConverterV3 method readDataFileFooter.

/**
   * Below method will be used to convert thrift file meta to wrapper file meta
   * This method will read the footer from footer offset present in the data file
   * 1. It will read the header from carbon data file, header starts from 0 offset
   * 2. It will set the stream offset
   * 3. It will read the footer data from file
   * 4. parse the footer to thrift object
   * 5. convert to wrapper object
   *
   * @param tableBlockInfo
   *        table block info
   * @return data file footer
   */
@Override
public DataFileFooter readDataFileFooter(TableBlockInfo tableBlockInfo) throws IOException {
    DataFileFooter dataFileFooter = new DataFileFooter();
    CarbonHeaderReader carbonHeaderReader = new CarbonHeaderReader(tableBlockInfo.getFilePath());
    FileHeader fileHeader = carbonHeaderReader.readHeader();
    CarbonFooterReaderV3 reader = new CarbonFooterReaderV3(tableBlockInfo.getFilePath(), tableBlockInfo.getBlockOffset());
    FileFooter3 footer = reader.readFooterVersion3();
    dataFileFooter.setVersionId(ColumnarFormatVersion.valueOf((short) fileHeader.getVersion()));
    dataFileFooter.setNumberOfRows(footer.getNum_rows());
    dataFileFooter.setSegmentInfo(getSegmentInfo(footer.getSegment_info()));
    dataFileFooter.setSchemaUpdatedTimeStamp(fileHeader.getTime_stamp());
    List<ColumnSchema> columnSchemaList = new ArrayList<ColumnSchema>();
    List<org.apache.carbondata.format.ColumnSchema> table_columns = fileHeader.getColumn_schema();
    for (int i = 0; i < table_columns.size(); i++) {
        columnSchemaList.add(thriftColumnSchmeaToWrapperColumnSchema(table_columns.get(i)));
    }
    dataFileFooter.setColumnInTable(columnSchemaList);
    List<org.apache.carbondata.format.BlockletIndex> leaf_node_indices_Thrift = footer.getBlocklet_index_list();
    List<BlockletIndex> blockletIndexList = new ArrayList<BlockletIndex>();
    for (int i = 0; i < leaf_node_indices_Thrift.size(); i++) {
        BlockletIndex blockletIndex = getBlockletIndex(leaf_node_indices_Thrift.get(i));
        blockletIndexList.add(blockletIndex);
    }
    List<org.apache.carbondata.format.BlockletInfo3> leaf_node_infos_Thrift = footer.getBlocklet_info_list3();
    List<BlockletInfo> blockletInfoList = new ArrayList<BlockletInfo>();
    for (int i = 0; i < leaf_node_infos_Thrift.size(); i++) {
        BlockletInfo blockletInfo = getBlockletInfo(leaf_node_infos_Thrift.get(i), getNumberOfDimensionColumns(columnSchemaList));
        blockletInfo.setBlockletIndex(blockletIndexList.get(i));
        blockletInfoList.add(blockletInfo);
    }
    dataFileFooter.setBlockletList(blockletInfoList);
    dataFileFooter.setBlockletIndex(getBlockletIndexForDataFileFooter(blockletIndexList));
    return dataFileFooter;
}