Examples with CarbonDictionarySortIndexWriter org.apache.carbondata.core.writer.sortindex.CarbonDictionarySortIndexWriter used on opensource projects

Example 1 with CarbonDictionarySortIndexWriter

use of org.apache.carbondata.core.writer.sortindex.CarbonDictionarySortIndexWriter in project carbondata by apache.

the class ForwardDictionaryCacheTest method writeSortIndexFile.

/**
   * This method will prepare the sort index data from the given data and write
   * it to a sort index file
   *
   * @param data
   * @param columnId
   * @throws IOException
   */
private void writeSortIndexFile(List<String> data, String columnId) throws IOException {
    ColumnIdentifier columnIdentifier = new ColumnIdentifier(columnId, null, null);
    Map<String, Integer> dataToSurrogateKeyMap = new HashMap<>(data.size());
    int surrogateKey = 0;
    List<Integer> invertedIndexList = new ArrayList<>(data.size());
    for (int i = 0; i < data.size(); i++) {
        dataToSurrogateKeyMap.put(data.get(i), ++surrogateKey);
    }
    List<String> sortedKeyList = new ArrayList<>(dataToSurrogateKeyMap.keySet());
    Collections.sort(sortedKeyList);
    List<Integer> sortedIndexList = new ArrayList<>(data.size());
    int[] invertedIndexArray = new int[sortedKeyList.size()];
    for (int i = 0; i < sortedKeyList.size(); i++) {
        Integer key = dataToSurrogateKeyMap.get(sortedKeyList.get(i));
        sortedIndexList.add(key);
        invertedIndexArray[--key] = i + 1;
    }
    for (int i = 0; i < invertedIndexArray.length; i++) {
        invertedIndexList.add(invertedIndexArray[i]);
    }
    CarbonDictionarySortIndexWriter dictionarySortIndexWriter = new CarbonDictionarySortIndexWriterImpl(carbonTableIdentifier, columnIdentifier, carbonStorePath);
    try {
        dictionarySortIndexWriter.writeSortIndex(sortedIndexList);
        dictionarySortIndexWriter.writeInvertedSortIndex(invertedIndexList);
    } finally {
        dictionarySortIndexWriter.close();
    }
}

Example 2 with CarbonDictionarySortIndexWriter

use of org.apache.carbondata.core.writer.sortindex.CarbonDictionarySortIndexWriter in project carbondata by apache.

the class CarbonDictionarySortIndexReaderImplTest method read.

/**
   * Test to read the data from dictionary sort index file
   *
   * @throws Exception
   */
@Test
public void read() throws Exception {
    deleteStorePath();
    CarbonTableIdentifier carbonTableIdentifier = new CarbonTableIdentifier("testSchema", "carbon", UUID.randomUUID().toString());
    ColumnIdentifier columnIdentifier = new ColumnIdentifier("Name", null, null);
    CarbonDictionaryWriter dictionaryWriter = new CarbonDictionaryWriterImpl(storePath, carbonTableIdentifier, columnIdentifier);
    String metaFolderPath = storePath + File.separator + carbonTableIdentifier.getDatabaseName() + File.separator + carbonTableIdentifier.getTableName() + File.separator + "Metadata";
    CarbonUtil.checkAndCreateFolder(metaFolderPath);
    CarbonDictionarySortIndexWriter dictionarySortIndexWriter = new CarbonDictionarySortIndexWriterImpl(carbonTableIdentifier, columnIdentifier, storePath);
    List<int[]> expectedData = prepareExpectedData();
    int[] data = expectedData.get(0);
    for (int i = 0; i < data.length; i++) {
        dictionaryWriter.write(String.valueOf(data[i]));
    }
    dictionaryWriter.close();
    dictionaryWriter.commit();
    List<Integer> sortIndex = Arrays.asList(ArrayUtils.toObject(expectedData.get(0)));
    List<Integer> invertedSortIndex = Arrays.asList(ArrayUtils.toObject(expectedData.get(1)));
    dictionarySortIndexWriter.writeSortIndex(sortIndex);
    dictionarySortIndexWriter.writeInvertedSortIndex(invertedSortIndex);
    dictionarySortIndexWriter.close();
    CarbonDictionarySortIndexReader dictionarySortIndexReader = new CarbonDictionarySortIndexReaderImpl(carbonTableIdentifier, columnIdentifier, storePath);
    List<Integer> actualSortIndex = dictionarySortIndexReader.readSortIndex();
    List<Integer> actualInvertedSortIndex = dictionarySortIndexReader.readInvertedSortIndex();
    for (int i = 0; i < actualSortIndex.size(); i++) {
        Assert.assertEquals(sortIndex.get(i), actualSortIndex.get(i));
        Assert.assertEquals(invertedSortIndex.get(i), actualInvertedSortIndex.get(i));
    }
}

Example 3 with CarbonDictionarySortIndexWriter

use of org.apache.carbondata.core.writer.sortindex.CarbonDictionarySortIndexWriter in project carbondata by apache.

the class StoreCreator method writeDictionary.

private static void writeDictionary(String factFilePath, CarbonTable table) throws Exception {
    BufferedReader reader = new BufferedReader(new FileReader(factFilePath));
    String header = reader.readLine();
    String[] split = header.split(",");
    List<CarbonColumn> allCols = new ArrayList<CarbonColumn>();
    List<CarbonDimension> dims = table.getDimensionByTableName(table.getFactTableName());
    allCols.addAll(dims);
    List<CarbonMeasure> msrs = table.getMeasureByTableName(table.getFactTableName());
    allCols.addAll(msrs);
    Set<String>[] set = new HashSet[dims.size()];
    for (int i = 0; i < set.length; i++) {
        set[i] = new HashSet<String>();
    }
    String line = reader.readLine();
    while (line != null) {
        String[] data = line.split(",");
        for (int i = 0; i < set.length; i++) {
            set[i].add(data[i]);
        }
        line = reader.readLine();
    }
    Cache dictCache = CacheProvider.getInstance().createCache(CacheType.REVERSE_DICTIONARY, absoluteTableIdentifier.getStorePath());
    for (int i = 0; i < set.length; i++) {
        ColumnIdentifier columnIdentifier = new ColumnIdentifier(dims.get(i).getColumnId(), null, null);
        CarbonDictionaryWriter writer = new CarbonDictionaryWriterImpl(absoluteTableIdentifier.getStorePath(), absoluteTableIdentifier.getCarbonTableIdentifier(), columnIdentifier);
        for (String value : set[i]) {
            writer.write(value);
        }
        writer.close();
        writer.commit();
        Dictionary dict = (Dictionary) dictCache.get(new DictionaryColumnUniqueIdentifier(absoluteTableIdentifier.getCarbonTableIdentifier(), columnIdentifier, dims.get(i).getDataType()));
        CarbonDictionarySortInfoPreparator preparator = new CarbonDictionarySortInfoPreparator();
        List<String> newDistinctValues = new ArrayList<String>();
        CarbonDictionarySortInfo dictionarySortInfo = preparator.getDictionarySortInfo(newDistinctValues, dict, dims.get(i).getDataType());
        CarbonDictionarySortIndexWriter carbonDictionaryWriter = new CarbonDictionarySortIndexWriterImpl(absoluteTableIdentifier.getCarbonTableIdentifier(), columnIdentifier, absoluteTableIdentifier.getStorePath());
        try {
            carbonDictionaryWriter.writeSortIndex(dictionarySortInfo.getSortIndex());
            carbonDictionaryWriter.writeInvertedSortIndex(dictionarySortInfo.getSortIndexInverted());
        } finally {
            carbonDictionaryWriter.close();
        }
    }
    reader.close();
}

Example 4 with CarbonDictionarySortIndexWriter

use of org.apache.carbondata.core.writer.sortindex.CarbonDictionarySortIndexWriter in project carbondata by apache.

the class IncrementalColumnDictionaryGenerator method writeSortIndex.

/**
   * write dictionary sort index to file
   *
   * @param distinctValues
   * @param dictionary
   * @param dictionaryService
   * @param tableIdentifier
   * @param columnIdentifier
   * @param storePath
   * @throws IOException
   */
private void writeSortIndex(List<String> distinctValues, Dictionary dictionary, DictionaryService dictionaryService, CarbonTableIdentifier tableIdentifier, ColumnIdentifier columnIdentifier, String storePath) throws IOException {
    CarbonDictionarySortIndexWriter carbonDictionarySortIndexWriter = null;
    try {
        CarbonDictionarySortInfoPreparator preparator = new CarbonDictionarySortInfoPreparator();
        CarbonDictionarySortInfo dictionarySortInfo = preparator.getDictionarySortInfo(distinctValues, dictionary, dimension.getDataType());
        carbonDictionarySortIndexWriter = dictionaryService.getDictionarySortIndexWriter(tableIdentifier, columnIdentifier, storePath);
        carbonDictionarySortIndexWriter.writeSortIndex(dictionarySortInfo.getSortIndex());
        carbonDictionarySortIndexWriter.writeInvertedSortIndex(dictionarySortInfo.getSortIndexInverted());
    } finally {
        if (null != carbonDictionarySortIndexWriter) {
            carbonDictionarySortIndexWriter.close();
        }
    }
}

Example 5 with CarbonDictionarySortIndexWriter

use of org.apache.carbondata.core.writer.sortindex.CarbonDictionarySortIndexWriter in project carbondata by apache.

the class StoreCreator method writeDictionary.

private static void writeDictionary(String factFilePath, CarbonTable table) throws Exception {
    BufferedReader reader = new BufferedReader(new FileReader(factFilePath));
    String header = reader.readLine();
    String[] split = header.split(",");
    List<CarbonColumn> allCols = new ArrayList<CarbonColumn>();
    List<CarbonDimension> dims = table.getDimensionByTableName(table.getFactTableName());
    allCols.addAll(dims);
    List<CarbonMeasure> msrs = table.getMeasureByTableName(table.getFactTableName());
    allCols.addAll(msrs);
    Set<String>[] set = new HashSet[dims.size()];
    for (int i = 0; i < set.length; i++) {
        set[i] = new HashSet<String>();
    }
    String line = reader.readLine();
    while (line != null) {
        String[] data = line.split(",");
        for (int i = 0; i < set.length; i++) {
            set[i].add(data[i]);
        }
        line = reader.readLine();
    }
    Cache dictCache = CacheProvider.getInstance().createCache(CacheType.REVERSE_DICTIONARY, absoluteTableIdentifier.getStorePath());
    for (int i = 0; i < set.length; i++) {
        ColumnIdentifier columnIdentifier = new ColumnIdentifier(dims.get(i).getColumnId(), null, null);
        CarbonDictionaryWriter writer = new CarbonDictionaryWriterImpl(absoluteTableIdentifier.getStorePath(), absoluteTableIdentifier.getCarbonTableIdentifier(), columnIdentifier);
        for (String value : set[i]) {
            writer.write(value);
        }
        writer.close();
        writer.commit();
        Dictionary dict = (Dictionary) dictCache.get(new DictionaryColumnUniqueIdentifier(absoluteTableIdentifier.getCarbonTableIdentifier(), columnIdentifier, dims.get(i).getDataType()));
        CarbonDictionarySortInfoPreparator preparator = new CarbonDictionarySortInfoPreparator();
        List<String> newDistinctValues = new ArrayList<String>();
        CarbonDictionarySortInfo dictionarySortInfo = preparator.getDictionarySortInfo(newDistinctValues, dict, dims.get(i).getDataType());
        CarbonDictionarySortIndexWriter carbonDictionaryWriter = new CarbonDictionarySortIndexWriterImpl(absoluteTableIdentifier.getCarbonTableIdentifier(), columnIdentifier, absoluteTableIdentifier.getStorePath());
        try {
            carbonDictionaryWriter.writeSortIndex(dictionarySortInfo.getSortIndex());
            carbonDictionaryWriter.writeInvertedSortIndex(dictionarySortInfo.getSortIndexInverted());
        } finally {
            carbonDictionaryWriter.close();
        }
    }
    reader.close();
}