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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.spi.block;
import io.airlift.slice.Slice;
public abstract class AbstractSingleArrayBlock
implements Block
{
protected final int start;
protected AbstractSingleArrayBlock(int start)
{
this.start = start;
}
protected abstract Block getBlock();
private void checkReadablePosition(int position)
{
if (position < 0 || position >= getPositionCount()) {
throw new IllegalArgumentException("position is not valid");
}
}
@Override
public int getSliceLength(int position)
{
checkReadablePosition(position);
return getBlock().getSliceLength(position + start);
}
@Override
public byte getByte(int position, int offset)
{
checkReadablePosition(position);
return getBlock().getByte(position + start, offset);
}
@Override
public short getShort(int position, int offset)
{
checkReadablePosition(position);
return getBlock().getShort(position + start, offset);
}
@Override
public int getInt(int position, int offset)
{
checkReadablePosition(position);
return getBlock().getInt(position + start, offset);
}
@Override
public long getLong(int position, int offset)
{
checkReadablePosition(position);
return getBlock().getLong(position + start, offset);
}
@Override
public Slice getSlice(int position, int offset, int length)
{
checkReadablePosition(position);
return getBlock().getSlice(position + start, offset, length);
}
@Override
public T getObject(int position, Class clazz)
{
checkReadablePosition(position);
return getBlock().getObject(position + start, clazz);
}
@Override
public boolean bytesEqual(int position, int offset, Slice otherSlice, int otherOffset, int length)
{
checkReadablePosition(position);
return getBlock().bytesEqual(position + start, offset, otherSlice, otherOffset, length);
}
@Override
public int bytesCompare(int position, int offset, int length, Slice otherSlice, int otherOffset, int otherLength)
{
checkReadablePosition(position);
return getBlock().bytesCompare(position + start, offset, length, otherSlice, otherOffset, otherLength);
}
@Override
public void writeBytesTo(int position, int offset, int length, BlockBuilder blockBuilder)
{
checkReadablePosition(position);
getBlock().writeBytesTo(position + start, offset, length, blockBuilder);
}
@Override
public void writePositionTo(int position, BlockBuilder blockBuilder)
{
checkReadablePosition(position);
getBlock().writePositionTo(position + start, blockBuilder);
}
@Override
public boolean equals(int position, int offset, Block otherBlock, int otherPosition, int otherOffset, int length)
{
checkReadablePosition(position);
return getBlock().equals(position + start, offset, otherBlock, otherPosition, otherOffset, length);
}
@Override
public long hash(int position, int offset, int length)
{
checkReadablePosition(position);
return getBlock().hash(position + start, offset, length);
}
@Override
public int compareTo(int leftPosition, int leftOffset, int leftLength, Block rightBlock, int rightPosition, int rightOffset, int rightLength)
{
checkReadablePosition(leftPosition);
return getBlock().compareTo(leftPosition + start, leftOffset, leftLength, rightBlock, rightPosition, rightOffset, rightLength);
}
@Override
public Block getSingleValueBlock(int position)
{
checkReadablePosition(position);
return getBlock().getSingleValueBlock(position + start);
}
@Override
public long getEstimatedDataSizeForStats(int position)
{
checkReadablePosition(position);
return getBlock().getEstimatedDataSizeForStats(position + start);
}
@Override
public boolean isNull(int position)
{
checkReadablePosition(position);
return getBlock().isNull(position + start);
}
@Override
public String getEncodingName()
{
// SingleArrayBlockEncoding does not exist
throw new UnsupportedOperationException();
}
@Override
public Block copyPositions(int[] positions, int offset, int length)
{
throw new UnsupportedOperationException();
}
@Override
public Block getRegion(int position, int length)
{
throw new UnsupportedOperationException();
}
@Override
public long getRegionSizeInBytes(int position, int length)
{
throw new UnsupportedOperationException();
}
@Override
public Block copyRegion(int position, int length)
{
throw new UnsupportedOperationException();
}
}
