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.processing.sort;
  
  import org.apache.carbondata.core.datastore.row.WriteStepRowUtil;
  import org.apache.carbondata.processing.loading.row.IntermediateSortTempRow;
  
  /**
   * Below class will be used to update the sort output row based on schema order during filnal merge
   * this is required because in case of older version(eg:1.1) alter add column was supported
   * only with sort columns and sort step will return the data based on
   * sort column order(sort columns first) so as writer step understand format based on schema order
   * so we need to arrange based on schema order
   */
  public class SchemaBasedRowUpdater implements SortTempRowUpdater {
  
    private static final long serialVersionUID = -8864989617597611912L;
  
    private boolean isUpdateDictDims;
  
    private boolean isUpdateNonDictDims;
  
    private int[] dictDimActualPosition;
  
    private int[] noDictActualPosition;
  
    public SchemaBasedRowUpdater(int[] dictDimActualPosition, int[] noDictActualPosition,
        boolean isUpdateDictDims, boolean isUpdateNonDictDims) {
      this.dictDimActualPosition = dictDimActualPosition;
      this.noDictActualPosition = noDictActualPosition;
      this.isUpdateDictDims = isUpdateDictDims;
      this.isUpdateNonDictDims = isUpdateNonDictDims;
    }
  
    @Override
    public void updateSortTempRow(IntermediateSortTempRow intermediateSortTempRow) {
      int[] dictSortDims = intermediateSortTempRow.getDictSortDims();
      if (isUpdateDictDims) {
        int[] dimArrayNew = new int[intermediateSortTempRow.getDictSortDims().length];
        for (int i = 0; i < dictSortDims.length; i++) {
          dimArrayNew[dictDimActualPosition[i]] = dictSortDims[i];
        }
        dictSortDims = dimArrayNew;
      }
      Object[] noDictSortDims = intermediateSortTempRow.getNoDictSortDims();
      if (isUpdateNonDictDims) {
        Object[] noDictArrayNew = new Object[noDictSortDims.length];
        for (int i = 0; i < noDictArrayNew.length; i++) {
          noDictArrayNew[noDictActualPosition[i]] = noDictSortDims[i];
        }
        noDictSortDims = noDictArrayNew;
      }
      intermediateSortTempRow.setDictData(dictSortDims);
      intermediateSortTempRow.setNoDictData(noDictSortDims);
    }
  
    @Override
    public void updateOutputRow(Object[] out, int[] dimArray, Object[] noDictArray,
        Object[] measureArray) {
      if (isUpdateDictDims) {
        int[] dimArrayNew = new int[dimArray.length];
        for (int i = 0; i < dimArray.length; i++) {
          dimArrayNew[dictDimActualPosition[i]] = dimArray[i];
        }
        dimArray = dimArrayNew;
      }
      if (isUpdateNonDictDims) {
        Object[] noDictArrayNew = new Object[noDictArray.length];
        for (int i = 0; i < noDictArrayNew.length; i++) {
          noDictArrayNew[noDictActualPosition[i]] = noDictArray[i];
        }
        noDictArray = noDictArrayNew;
      }
      out[WriteStepRowUtil.DICTIONARY_DIMENSION] = dimArray;
      out[WriteStepRowUtil.NO_DICTIONARY_AND_COMPLEX] = noDictArray;
      out[WriteStepRowUtil.MEASURE] = measureArray;
    }
  }
  