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.math.BigDecimal;
  import java.util.BitSet;
  
  import org.apache.carbondata.core.datastore.page.ColumnPage;
  import org.apache.carbondata.core.metadata.datatype.DataType;
  import org.apache.carbondata.core.metadata.datatype.DataTypes;
  
  public class MeasureDataVectorProcessor {
  
    public interface MeasureVectorFiller {
  
      void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info);
  
      void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info);
    }
  
    public static class IntegralMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putInt(vectorOffset, (int)dataChunk.getLong(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putInt(vectorOffset, (int)dataChunk.getLong(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putInt(vectorOffset, (int)dataChunk.getLong(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putInt(vectorOffset, (int)dataChunk.getLong(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    /**
     * Fill Measure Vector For Boolean data type
     */
    public static class BooleanMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putBoolean(vectorOffset, dataChunk.getBoolean(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putBoolean(vectorOffset, dataChunk.getBoolean(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId,
          ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putBoolean(vectorOffset, dataChunk.getBoolean(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putBoolean(vectorOffset, dataChunk.getBoolean(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    public static class ShortMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putShort(vectorOffset, (short) dataChunk.getLong(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putShort(vectorOffset, (short) dataChunk.getLong(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putShort(vectorOffset, (short) dataChunk.getLong(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putShort(vectorOffset, (short) dataChunk.getLong(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    public static class LongMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putLong(vectorOffset, dataChunk.getLong(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putLong(vectorOffset, dataChunk.getLong(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putLong(vectorOffset, dataChunk.getLong(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putLong(vectorOffset, dataChunk.getLong(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    public static class DecimalMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        int precision = info.measure.getMeasure().getPrecision();
        int newMeasureScale = info.measure.getMeasure().getScale();
        BitSet nullBitSet = dataChunk.getNullBits();
        for (int i = offset; i < len; i++) {
          if (nullBitSet.get(i)) {
            vector.putNull(vectorOffset);
          } else {
            BigDecimal decimal =
                dataChunk.getDecimal(i);
            if (decimal.scale() < newMeasureScale) {
              decimal = decimal.setScale(newMeasureScale);
            }
            vector.putDecimal(vectorOffset, decimal, precision);
          }
          vectorOffset++;
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        int precision = info.measure.getMeasure().getPrecision();
        BitSet nullBitSet = dataChunk.getNullBits();
        for (int i = offset; i < len; i++) {
          int currentRow = filteredRowId[i];
          if (nullBitSet.get(currentRow)) {
            vector.putNull(vectorOffset);
          } else {
            BigDecimal decimal = dataChunk.getDecimal(currentRow);
            if (info.measure.getMeasure().getScale() > decimal.scale()) {
              decimal = decimal.setScale(info.measure.getMeasure().getScale());
            }
            vector.putDecimal(vectorOffset, decimal, precision);
          }
          vectorOffset++;
        }
      }
    }
  
    public static class FloatMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putFloat(vectorOffset, dataChunk.getFloat(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putFloat(vectorOffset, dataChunk.getFloat(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putFloat(vectorOffset, dataChunk.getFloat(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putFloat(vectorOffset, dataChunk.getFloat(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    public static class ByteMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putByte(vectorOffset, dataChunk.getByte(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putByte(vectorOffset, dataChunk.getByte(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putByte(vectorOffset, dataChunk.getByte(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putByte(vectorOffset, dataChunk.getByte(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    public static class DefaultMeasureVectorFiller implements MeasureVectorFiller {
  
      @Override
      public void fillMeasureVector(ColumnPage dataChunk, ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            vector.putDouble(vectorOffset, dataChunk.getDouble(i));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            if (nullBitSet.get(i)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putDouble(vectorOffset, dataChunk.getDouble(i));
            }
            vectorOffset++;
          }
        }
      }
  
      @Override
      public void fillMeasureVector(int[] filteredRowId, ColumnPage dataChunk,
          ColumnVectorInfo info) {
        int offset = info.offset;
        int len = offset + info.size;
        int vectorOffset = info.vectorOffset;
        CarbonColumnVector vector = info.vector;
        BitSet nullBitSet = dataChunk.getNullBits();
        if (nullBitSet.isEmpty()) {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            vector.putDouble(vectorOffset, dataChunk.getDouble(currentRow));
            vectorOffset++;
          }
        } else {
          for (int i = offset; i < len; i++) {
            int currentRow = filteredRowId[i];
            if (nullBitSet.get(currentRow)) {
              vector.putNull(vectorOffset);
            } else {
              vector.putDouble(vectorOffset, dataChunk.getDouble(currentRow));
            }
            vectorOffset++;
          }
        }
      }
    }
  
    public static class MeasureVectorFillerFactory {
  
      public static MeasureVectorFiller getMeasureVectorFiller(DataType dataType) {
        if (dataType == DataTypes.BOOLEAN) {
          return new BooleanMeasureVectorFiller();
        } else if (dataType == DataTypes.SHORT) {
          return new ShortMeasureVectorFiller();
        } else if (dataType == DataTypes.INT) {
          return new IntegralMeasureVectorFiller();
        } else if (dataType == DataTypes.LONG) {
          return new LongMeasureVectorFiller();
        } else if (DataTypes.isDecimal(dataType)) {
          return new DecimalMeasureVectorFiller();
        } else if (dataType == DataTypes.FLOAT) {
          return new FloatMeasureVectorFiller();
        } else if (dataType == DataTypes.BYTE) {
          return new ByteMeasureVectorFiller();
        } else {
          return new DefaultMeasureVectorFiller();
        }
      }
    }
  
  }
  