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.loading.sort.unsafe.comparator;
  
  import java.util.Comparator;
  
  import org.apache.carbondata.core.memory.CarbonUnsafe;
  import org.apache.carbondata.processing.loading.sort.unsafe.UnsafeCarbonRowPage;
  import org.apache.carbondata.processing.loading.sort.unsafe.holder.UnsafeCarbonRow;
  
  public class UnsafeRowComparatorForNormalDims implements Comparator<UnsafeCarbonRow> {
  
    private Object baseObject;
  
    private int numberOfSortColumns;
  
    public UnsafeRowComparatorForNormalDims(UnsafeCarbonRowPage rowPage) {
      this.baseObject = rowPage.getDataBlock().getBaseObject();
      this.numberOfSortColumns = rowPage.getTableFieldStat().getIsSortColNoDictFlags().length;
    }
  
    /**
     * Below method will be used to compare two mdkey
     */
    @Override
    public int compare(UnsafeCarbonRow rowL, UnsafeCarbonRow rowR) {
      int diff = 0;
      long rowA = rowL.address;
      long rowB = rowR.address;
      int sizeA = 0;
      int sizeB = 0;
      for (int i = 0; i < numberOfSortColumns; i++) {
        int dimFieldA = CarbonUnsafe.getUnsafe().getInt(baseObject, rowA + sizeA);
        sizeA += 4;
        int dimFieldB = CarbonUnsafe.getUnsafe().getInt(baseObject, rowB + sizeB);
        sizeB += 4;
        diff = dimFieldA - dimFieldB;
        if (diff != 0) {
          return diff;
        }
      }
  
      return diff;
    }
  }