io.trino.plugin.geospatial.KdbTreeCasts 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.trino.plugin.geospatial;
import io.airlift.slice.Slice;
import io.trino.geospatial.KdbTreeUtils;
import io.trino.spi.TrinoException;
import io.trino.spi.function.LiteralParameters;
import io.trino.spi.function.ScalarOperator;
import io.trino.spi.function.SqlType;
import static io.trino.spi.StandardErrorCode.INVALID_CAST_ARGUMENT;
import static io.trino.spi.function.OperatorType.CAST;
public final class KdbTreeCasts
{
private KdbTreeCasts() {}
@LiteralParameters("x")
@ScalarOperator(CAST)
@SqlType(KdbTreeType.NAME)
public static Object castVarcharToKdbTree(@SqlType("varchar(x)") Slice json)
{
try {
return KdbTreeUtils.fromJson(json.toStringUtf8());
}
catch (IllegalArgumentException e) {
throw new TrinoException(INVALID_CAST_ARGUMENT, "Invalid JSON string for KDB tree", e);
}
}
}