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BinarySpillerFactory.java
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BinarySpillerFactory.java
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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.spiller;
import com.facebook.presto.spi.block.BlockEncodingSerde;
import com.facebook.presto.spi.type.Type;
import com.facebook.presto.sql.analyzer.FeaturesConfig;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.inject.Inject;
import java.nio.file.Path;
import java.util.List;
import static io.airlift.concurrent.Threads.daemonThreadsNamed;
import static java.util.Objects.requireNonNull;
import static java.util.concurrent.Executors.newFixedThreadPool;
public class BinarySpillerFactory
implements SpillerFactory
{
private final ListeningExecutorService executor;
private final BlockEncodingSerde blockEncodingSerde;
private final Path spillPath;
@Inject
public BinarySpillerFactory(BlockEncodingSerde blockEncodingSerde, FeaturesConfig featuresConfig)
{
this(blockEncodingSerde, MoreExecutors.listeningDecorator(newFixedThreadPool(4, daemonThreadsNamed("binary-spiller-%s"))), featuresConfig);
}
public BinarySpillerFactory(BlockEncodingSerde blockEncodingSerde, ListeningExecutorService executor, FeaturesConfig featuresConfig)
{
this.blockEncodingSerde = requireNonNull(blockEncodingSerde, "blockEncodingSerde is null");
this.executor = requireNonNull(executor, "executor is null");
this.spillPath = featuresConfig.getSpillerSpillPath();
this.spillPath.toFile().mkdirs();
}
@Override
public Spiller create(List<Type> types)
{
return new BinaryFileSpiller(blockEncodingSerde, executor, spillPath);
}
}