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 java.math.BigDecimal;
  
  import org.apache.carbondata.core.datastore.page.encoding.ColumnPageEncoderMeta;
  import org.apache.carbondata.core.util.ByteUtil;
  
  /**
   * Represent a columnar data in one page for one column of decimal data type
   */
  public class SafeDecimalColumnPage extends DecimalColumnPage {
  
    // Only one of following fields will be used
    private byte[] byteData;
    private short[] shortData;
    private int[] intData;
    private long[] longData;
    private byte[] shortIntData;
    private byte[][] byteArrayData;
  
    SafeDecimalColumnPage(ColumnPageEncoderMeta columnPageEncoderMeta, int pageSize) {
      super(columnPageEncoderMeta, pageSize);
      byteArrayData = new byte[pageSize][];
    }
  
    @Override
    public void setBytePage(byte[] byteData) {
      this.byteData = byteData;
    }
  
    @Override
    public void setShortPage(short[] shortData) {
      this.shortData = shortData;
    }
  
    @Override
    public void setShortIntPage(byte[] shortIntData) {
      this.shortIntData = shortIntData;
    }
  
    @Override
    public void setIntPage(int[] intData) {
      this.intData = intData;
    }
  
    @Override
    public void setLongPage(long[] longData) {
      this.longData = longData;
    }
  
    @Override
    public void setByteArrayPage(byte[][] byteArray) {
      byteArrayData = byteArray;
    }
  
    /**
     * Set byte value at rowId
     */
    @Override
    public void putByte(int rowId, byte value) {
      byteData[rowId] = value;
    }
  
    /**
     * Set short value at rowId
     */
    @Override
    public void putShort(int rowId, short value) {
      shortData[rowId] = value;
    }
  
    /**
     * Set integer value at rowId
     */
    @Override
    public void putInt(int rowId, int value) {
      intData[rowId] = value;
    }
  
    /**
     * Set long value at rowId
     */
    @Override
    public void putLong(int rowId, long value) {
      longData[rowId] = value;
    }
  
    @Override
    void putBytesAtRow(int rowId, byte[] bytes) {
      byteArrayData[rowId] = bytes;
    }
  
    @Override
    public void putDecimal(int rowId, BigDecimal decimal) {
      switch (decimalConverter.getDecimalConverterType()) {
        case DECIMAL_INT:
          if (null == intData) {
            intData = new int[pageSize];
          }
          putInt(rowId, (int) decimalConverter.convert(decimal));
          break;
        case DECIMAL_LONG:
          if (null == longData) {
            longData = new long[pageSize];
          }
          putLong(rowId, (long) decimalConverter.convert(decimal));
          break;
        default:
          putBytes(rowId, (byte[]) decimalConverter.convert(decimal));
      }
    }
  
    @Override
    public void putShortInt(int rowId, int value) {
      byte[] converted = ByteUtil.to3Bytes(value);
      System.arraycopy(converted, 0, shortIntData, rowId * 3, 3);
    }
  
    @Override
    public void putBytes(int rowId, byte[] bytes, int offset, int length) {
      byteArrayData[rowId] = new byte[length];
      System.arraycopy(bytes, offset, byteArrayData[rowId], 0, length);
    }
  
    @Override
    public byte getByte(int rowId) {
      return byteData[rowId];
    }
  
    @Override
    public byte[] getBytes(int rowId) {
      return byteArrayData[rowId];
    }
  
    @Override
    public short getShort(int rowId) {
      return shortData[rowId];
    }
  
    @Override
    public int getShortInt(int rowId) {
      return ByteUtil.valueOf3Bytes(shortIntData, rowId * 3);
    }
  
    @Override
    public int getInt(int rowId) {
      return intData[rowId];
    }
  
    @Override
    public long getLong(int rowId) {
      return longData[rowId];
    }
  
    @Override
    public void copyBytes(int rowId, byte[] dest, int destOffset, int length) {
      System.arraycopy(byteArrayData[rowId], 0, dest, destOffset, length);
    }
  
    @Override
    public void convertValue(ColumnPageValueConverter codec) {
      switch (decimalConverter.getDecimalConverterType()) {
        case DECIMAL_INT:
          for (int i = 0; i < pageSize; i++) {
            codec.encode(i, intData[i]);
          }
          break;
        case DECIMAL_LONG:
          for (int i = 0; i < pageSize; i++) {
            codec.encode(i, longData[i]);
          }
          break;
        default:
          throw new UnsupportedOperationException("not support value conversion on "
              + columnPageEncoderMeta.getStoreDataType() + " page");
      }
    }
  
    @Override
    public byte[] getBytePage() {
      return byteData;
    }
  
    @Override
    public short[] getShortPage() {
      return shortData;
    }
  
    @Override
    public byte[] getShortIntPage() {
      return shortIntData;
    }
  
    @Override
    public int[] getIntPage() {
      return intData;
    }
  
    @Override
    public long[] getLongPage() {
      return longData;
    }
  
    @Override
    public byte[][] getByteArrayPage() {
      return byteArrayData;
    }
  
    @Override
    public void freeMemory() {
      byteArrayData = null;
      super.freeMemory();
    }
  }
  