content: /*
   * 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.columnar;
  
  import java.util.Arrays;
  
  /**
   * Support to encode on both rowId and data
   */
  public class ByteArrayBlockIndexerStorage extends BlockIndexerStorage<byte[][]> {
  
    public ByteArrayBlockIndexerStorage(byte[][] dataPage, boolean rleOnData,
                                        boolean isNoDictionary, boolean isSortRequired) {
      ByteArrayColumnWithRowId[] dataWithRowId = createColumnWithRowId(dataPage, isNoDictionary);
      if (isSortRequired) {
        Arrays.sort(dataWithRowId);
      }
      short[] rowIds = extractDataAndReturnRowId(dataWithRowId, dataPage);
      encodeAndSetRowId(rowIds);
      if (rleOnData) {
        this.dataPage = rleEncodeOnData(dataPage);
      } else {
        this.dataPage = dataPage;
      }
    }
  
    /**
     * Create an object with each column array and respective rowId
     *
     * @return
     */
    private ByteArrayColumnWithRowId[] createColumnWithRowId(byte[][] dataPage,
        boolean isNoDictionary) {
      ByteArrayColumnWithRowId[] columnWithIndexes = new ByteArrayColumnWithRowId[dataPage.length];
      for (short i = 0; i < columnWithIndexes.length; i++) {
        columnWithIndexes[i] = new ByteArrayColumnWithRowId(dataPage[i], i, isNoDictionary);
      }
      return columnWithIndexes;
    }
  
    private short[] extractDataAndReturnRowId(ByteArrayColumnWithRowId[] dataWithRowId,
        byte[][] dataPage) {
      short[] indexes = new short[dataWithRowId.length];
      for (int i = 0; i < indexes.length; i++) {
        indexes[i] = dataWithRowId[i].getRowId();
        dataPage[i] = dataWithRowId[i].getColumn();
      }
      this.dataPage = dataPage;
      return indexes;
    }
  
  }
  