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.page;
  
  import org.apache.carbondata.core.datastore.page.encoding.EncodedColumnPage;
  
  /**
   * Table page that after encoding and compression.
   */
  public class EncodedTablePage {
  
    // encoded data and metadata for each dimension column
    private EncodedColumnPage[] dimensionPages;
  
    // encoded data and metadata for each measure column
    private EncodedColumnPage[] measurePages;
  
    // number of row in this page
    private int pageSize;
  
    // size in bytes of all encoded columns (including data and metadata)
    private int encodedSize;
  
    public static EncodedTablePage newInstance(int pageSize,
        EncodedColumnPage[] dimensionPages, EncodedColumnPage[] measurePages) {
      return new EncodedTablePage(pageSize, dimensionPages, measurePages);
    }
  
    private EncodedTablePage(int pageSize,
        EncodedColumnPage[] dimensionPages, EncodedColumnPage[] measurePages) {
      this.dimensionPages = dimensionPages;
      this.measurePages = measurePages;
      this.pageSize = pageSize;
      this.encodedSize = calculatePageSize(dimensionPages, measurePages);
    }
  
    // return size in bytes of this encoded page
    private int calculatePageSize(EncodedColumnPage[] dimensionPages,
        EncodedColumnPage[] measurePages) {
      int size = 0;
      for (EncodedColumnPage dimensionPage : dimensionPages) {
        size += dimensionPage.getTotalSerializedSize();
      }
      for (EncodedColumnPage measurePage : measurePages) {
        size += measurePage.getTotalSerializedSize();
      }
      return size;
    }
  
    public int getEncodedSize() {
      return encodedSize;
    }
  
    public int getPageSize() {
      return pageSize;
    }
  
    public int getNumDimensions() {
      return dimensionPages.length;
    }
  
    public int getNumMeasures() {
      return measurePages.length;
    }
  
    public EncodedColumnPage getDimension(int dimensionIndex) {
      return dimensionPages[dimensionIndex];
    }
  
    public EncodedColumnPage getMeasure(int measureIndex) {
      return measurePages[measureIndex];
    }
  
    public EncodedColumnPage[] getDimensions() {
      return dimensionPages;
    }
  
    public EncodedColumnPage[] getMeasures() {
      return measurePages;
    }
  }
  