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.scan.result.vector;
  
  import java.util.BitSet;
  import java.util.List;
  import java.util.Stack;
  
  import org.apache.carbondata.core.keygenerator.directdictionary.DirectDictionaryGenerator;
  import org.apache.carbondata.core.metadata.datatype.DataTypes;
  import org.apache.carbondata.core.metadata.datatype.DecimalConverterFactory;
  import org.apache.carbondata.core.scan.filter.GenericQueryType;
  import org.apache.carbondata.core.scan.model.ProjectionDimension;
  import org.apache.carbondata.core.scan.model.ProjectionMeasure;
  import org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl;
  import org.apache.carbondata.format.Encoding;
  
  public class ColumnVectorInfo implements Comparable<ColumnVectorInfo> {
    public int offset;
    public int size;
    public CarbonColumnVector vector;
    public int vectorOffset;
    public String carbonDataFileWrittenVersion;
    public ProjectionDimension dimension;
    public ProjectionMeasure measure;
    public int ordinal;
    public DirectDictionaryGenerator directDictionaryGenerator;
    public MeasureDataVectorProcessor.MeasureVectorFiller measureVectorFiller;
    public GenericQueryType genericQueryType;
    public int[] invertedIndex;
    public BitSet deletedRows;
    public DecimalConverterFactory.DecimalConverter decimalConverter;
    // Vector stack is used in complex column vectorInfo to store all the children vectors.
    public Stack<CarbonColumnVector> vectorStack = new Stack<>();
    // store the encoding of the column, used while decoding the page for filling the vector
    public List<Encoding> encodings;
  
    @Override
    public int compareTo(ColumnVectorInfo o) {
      return ordinal - o.ordinal;
    }
  
    @Override
    public boolean equals(Object obj) {
      if (this == obj) {
        return true;
      }
  
      if (null == obj) {
        return false;
      }
  
      if (!(obj instanceof ColumnVectorInfo)) {
        return false;
      }
  
      return ordinal == ((ColumnVectorInfo) obj).ordinal;
    }
  
    @Override
    public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + (ordinal);
      return result;
    }
  
    public static Integer getUpdatedPageSizeForChildVector(ColumnVectorInfo vectorInfo,
        int parentPageSize) {
      int newPageSize = 0;
      CarbonColumnVector vector = vectorInfo.vector;
      if (DataTypes.isArrayType(vector.getType())) {
        // If it is array children vector,
        // page size will not same as parent pageSize, so need to re calculate.
        List<Integer> childElementsCountForEachRow =
            ((CarbonColumnVectorImpl) vector.getColumnVector())
                .getNumberOfChildrenElementsInEachRow();
        for (int childElementsCount : childElementsCountForEachRow) {
          newPageSize += childElementsCount;
        }
        return newPageSize;
      } else {
        return parentPageSize;
      }
    }
  }
  