io.prestosql.plugin.geospatial.aggregation.GeometryStateSerializer Maven / Gradle / Ivy
/*
* 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 io.prestosql.plugin.geospatial.aggregation;
import io.prestosql.geospatial.serde.GeometrySerde;
import io.prestosql.spi.block.Block;
import io.prestosql.spi.block.BlockBuilder;
import io.prestosql.spi.function.AccumulatorStateSerializer;
import io.prestosql.spi.type.Type;
import static io.prestosql.plugin.geospatial.GeometryType.GEOMETRY;
public class GeometryStateSerializer
implements AccumulatorStateSerializer
{
@Override
public Type getSerializedType()
{
return GEOMETRY;
}
@Override
public void serialize(GeometryState state, BlockBuilder out)
{
if (state.getGeometry() == null) {
out.appendNull();
}
else {
GEOMETRY.writeSlice(out, GeometrySerde.serialize(state.getGeometry()));
}
}
@Override
public void deserialize(Block block, int index, GeometryState state)
{
state.setGeometry(GeometrySerde.deserialize(GEOMETRY.getSlice(block, index)));
}
}