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/*
* Licensed 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 com.facebook.presto.common.block;
import io.airlift.slice.Slice;
import io.airlift.slice.SliceOutput;
import static com.facebook.presto.common.block.BlockUtil.internalPositionInRange;
public abstract class AbstractSingleRowBlock
implements Block
{
protected final int rowIndex;
protected AbstractSingleRowBlock(int rowIndex)
{
this.rowIndex = rowIndex;
}
protected abstract Block getRawFieldBlock(int fieldIndex);
private void checkFieldIndex(int position)
{
if (position < 0 || position >= getPositionCount()) {
throw new IllegalArgumentException("position is not valid: " + position);
}
}
@Override
public boolean isNull(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).isNull(rowIndex);
}
@Override
public byte getByte(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getByte(rowIndex);
}
@Override
public short getShort(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getShort(rowIndex);
}
@Override
public int getInt(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getInt(rowIndex);
}
@Override
public long getLong(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getLong(rowIndex);
}
@Override
public long getLong(int position, int offset)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getLong(rowIndex, offset);
}
@Override
public Slice getSlice(int position, int offset, int length)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getSlice(rowIndex, offset, length);
}
@Override
public int getSliceLength(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getSliceLength(rowIndex);
}
@Override
public int compareTo(int position, int offset, int length, Block otherBlock, int otherPosition, int otherOffset, int otherLength)
{
checkFieldIndex(position);
return getRawFieldBlock(position).compareTo(rowIndex, offset, length, otherBlock, otherPosition, otherOffset, otherLength);
}
@Override
public boolean bytesEqual(int position, int offset, Slice otherSlice, int otherOffset, int length)
{
checkFieldIndex(position);
return getRawFieldBlock(position).bytesEqual(rowIndex, offset, otherSlice, otherOffset, length);
}
@Override
public int bytesCompare(int position, int offset, int length, Slice otherSlice, int otherOffset, int otherLength)
{
checkFieldIndex(position);
return getRawFieldBlock(position).bytesCompare(rowIndex, offset, length, otherSlice, otherOffset, otherLength);
}
@Override
public void writeBytesTo(int position, int offset, int length, BlockBuilder blockBuilder)
{
checkFieldIndex(position);
getRawFieldBlock(position).writeBytesTo(rowIndex, offset, length, blockBuilder);
}
@Override
public void writeBytesTo(int position, int offset, int length, SliceOutput sliceOutput)
{
checkFieldIndex(position);
getRawFieldBlock(position).writeBytesTo(rowIndex, offset, length, sliceOutput);
}
@Override
public boolean equals(int position, int offset, Block otherBlock, int otherPosition, int otherOffset, int length)
{
checkFieldIndex(position);
return getRawFieldBlock(position).equals(rowIndex, offset, otherBlock, otherPosition, otherOffset, length);
}
@Override
public long hash(int position, int offset, int length)
{
checkFieldIndex(position);
return getRawFieldBlock(position).hash(rowIndex, offset, length);
}
@Override
public Block getBlock(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getBlock(rowIndex);
}
@Override
public void writePositionTo(int position, BlockBuilder blockBuilder)
{
checkFieldIndex(position);
getRawFieldBlock(position).writePositionTo(rowIndex, blockBuilder);
}
@Override
public void writePositionTo(int position, SliceOutput output)
{
getRawFieldBlock(position).writePositionTo(rowIndex, output);
}
@Override
public Block getSingleValueBlock(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getSingleValueBlock(rowIndex);
}
@Override
public long getEstimatedDataSizeForStats(int position)
{
checkFieldIndex(position);
return getRawFieldBlock(position).getEstimatedDataSizeForStats(rowIndex);
}
@Override
public long getRegionSizeInBytes(int position, int length)
{
throw new UnsupportedOperationException();
}
@Override
public long getPositionsSizeInBytes(boolean[] positions, int usedPositionCount)
{
throw new UnsupportedOperationException();
}
@Override
public Block copyPositions(int[] positions, int offset, int length)
{
throw new UnsupportedOperationException();
}
@Override
public Block getRegion(int positionOffset, int length)
{
throw new UnsupportedOperationException();
}
@Override
public Block copyRegion(int position, int length)
{
throw new UnsupportedOperationException();
}
@Override
public byte getByteUnchecked(int internalPosition)
{
return getRawFieldBlock(internalPosition).getByte(rowIndex);
}
@Override
public short getShortUnchecked(int internalPosition)
{
return getRawFieldBlock(internalPosition).getShort(rowIndex);
}
@Override
public int getIntUnchecked(int internalPosition)
{
return getRawFieldBlock(internalPosition).getInt(rowIndex);
}
@Override
public long getLongUnchecked(int internalPosition)
{
return getRawFieldBlock(internalPosition).getLong(rowIndex);
}
@Override
public long getLongUnchecked(int internalPosition, int offset)
{
return getRawFieldBlock(internalPosition).getLong(rowIndex, offset);
}
@Override
public Slice getSliceUnchecked(int internalPosition, int offset, int length)
{
return getRawFieldBlock(internalPosition).getSlice(rowIndex, offset, length);
}
@Override
public int getSliceLengthUnchecked(int internalPosition)
{
return getRawFieldBlock(internalPosition).getSliceLength(rowIndex);
}
@Override
public Block getBlockUnchecked(int internalPosition)
{
return getRawFieldBlock(internalPosition).getBlock(rowIndex);
}
@Override
public int getOffsetBase()
{
return 0;
}
@Override
public boolean isNullUnchecked(int internalPosition)
{
assert mayHaveNull() : "no nulls present";
assert internalPositionInRange(internalPosition, getOffsetBase(), getPositionCount());
return getRawFieldBlock(internalPosition).isNull(rowIndex);
}
}
