io.trino.plugin.deltalake.DeltaLakeNodePartitioningProvider 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.deltalake;
import com.google.inject.Inject;
import io.trino.spi.connector.BucketFunction;
import io.trino.spi.connector.ConnectorNodePartitioningProvider;
import io.trino.spi.connector.ConnectorPartitioningHandle;
import io.trino.spi.connector.ConnectorSession;
import io.trino.spi.connector.ConnectorTransactionHandle;
import io.trino.spi.type.Type;
import io.trino.spi.type.TypeManager;
import io.trino.spi.type.TypeOperators;
import java.util.List;
public class DeltaLakeNodePartitioningProvider
implements ConnectorNodePartitioningProvider
{
private final TypeOperators typeOperators;
@Inject
public DeltaLakeNodePartitioningProvider(TypeManager typeManager)
{
this.typeOperators = typeManager.getTypeOperators();
}
@Override
public BucketFunction getBucketFunction(
ConnectorTransactionHandle transactionHandle,
ConnectorSession session,
ConnectorPartitioningHandle partitioningHandle,
List partitionChannelTypes,
int bucketCount)
{
if (partitioningHandle instanceof DeltaLakeUpdateHandle) {
return new DeltaLakeUpdateBucketFunction(bucketCount);
}
DeltaLakePartitioningHandle handle = (DeltaLakePartitioningHandle) partitioningHandle;
return new DeltaLakeBucketFunction(typeOperators, handle.getPartitioningColumns(), bucketCount);
}
}