/*
* 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.benchmark;
import com.facebook.presto.block.BlockIterable;
import com.facebook.presto.operator.AlignmentOperator.AlignmentOperatorFactory;
import com.facebook.presto.operator.OperatorFactory;
import com.facebook.presto.operator.TopNOperator.TopNOperatorFactory;
import com.facebook.presto.serde.BlocksFileEncoding;
import com.facebook.presto.sql.tree.SortItem;
import com.facebook.presto.tpch.TpchBlocksProvider;
import com.facebook.presto.tuple.FieldOrderedTupleComparator;
import com.facebook.presto.tuple.TupleInfo.Type;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Ordering;
import java.util.List;
import java.util.concurrent.ExecutorService;
import static com.facebook.presto.operator.ProjectionFunctions.singleColumn;
import static com.facebook.presto.util.Threads.daemonThreadsNamed;
import static java.util.concurrent.Executors.newCachedThreadPool;
public class Top100Benchmark
extends AbstractSimpleOperatorBenchmark
{
public Top100Benchmark(ExecutorService executor, TpchBlocksProvider tpchBlocksProvider)
{
super(executor, tpchBlocksProvider, "top100", 5, 50);
}
@Override
protected List<? extends OperatorFactory> createOperatorFactories()
{
BlockIterable blockIterable = getBlockIterable("orders", "totalprice", BlocksFileEncoding.RAW);
AlignmentOperatorFactory alignmentOperator = new AlignmentOperatorFactory(0, blockIterable);
TopNOperatorFactory topNOperator = new TopNOperatorFactory(
1,
100,
0,
ImmutableList.of(singleColumn(Type.DOUBLE, 0, 0)),
Ordering.from(new FieldOrderedTupleComparator(ImmutableList.of(0), ImmutableList.of(SortItem.Ordering.DESCENDING))),
false);
return ImmutableList.of(alignmentOperator, topNOperator);
}
public static void main(String[] args)
{
ExecutorService executor = newCachedThreadPool(daemonThreadsNamed("test"));
new Top100Benchmark(executor, DEFAULT_TPCH_BLOCKS_PROVIDER).runBenchmark(
new SimpleLineBenchmarkResultWriter(System.out)
);
}
}