/*
* 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.operator;
import com.facebook.presto.RowPagesBuilder;
import com.facebook.presto.spi.Page;
import com.facebook.presto.spi.block.SortOrder;
import com.facebook.presto.sql.gen.JoinCompiler;
import com.facebook.presto.sql.planner.plan.PlanNodeId;
import com.facebook.presto.testing.MaterializedResult;
import com.google.common.collect.ImmutableList;
import com.google.common.primitives.Ints;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.ExecutorService;
import static com.facebook.presto.RowPagesBuilder.rowPagesBuilder;
import static com.facebook.presto.SessionTestUtils.TEST_SESSION;
import static com.facebook.presto.operator.OperatorAssertion.assertOperatorEquals;
import static com.facebook.presto.operator.TopNRowNumberOperator.TopNRowNumberOperatorFactory;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.facebook.presto.spi.type.DoubleType.DOUBLE;
import static com.facebook.presto.testing.MaterializedResult.resultBuilder;
import static com.facebook.presto.testing.TestingTaskContext.createTaskContext;
import static io.airlift.concurrent.Threads.daemonThreadsNamed;
import static java.util.concurrent.Executors.newCachedThreadPool;
@Test(singleThreaded = true)
public class TestTopNRowNumberOperator
{
private ExecutorService executor;
private DriverContext driverContext;
private JoinCompiler joinCompiler;
@BeforeMethod
public void setUp()
{
executor = newCachedThreadPool(daemonThreadsNamed("test-%s"));
driverContext = createTaskContext(executor, TEST_SESSION)
.addPipelineContext(0, true, true)
.addDriverContext();
joinCompiler = new JoinCompiler();
}
@AfterMethod
public void tearDown()
{
executor.shutdownNow();
}
@DataProvider(name = "hashEnabledValues")
public static Object[][] hashEnabledValuesProvider()
{
return new Object[][] { { true }, { false } };
}
@Test(dataProvider = "hashEnabledValues")
public void testTopNRowNumberPartitioned(boolean hashEnabled)
throws Exception
{
RowPagesBuilder rowPagesBuilder = rowPagesBuilder(hashEnabled, Ints.asList(0), BIGINT, DOUBLE);
List<Page> input = rowPagesBuilder
.row(1L, 0.3)
.row(2L, 0.2)
.row(3L, 0.1)
.row(3L, 0.91)
.pageBreak()
.row(1L, 0.4)
.pageBreak()
.row(1L, 0.5)
.row(1L, 0.6)
.row(2L, 0.7)
.row(2L, 0.8)
.pageBreak()
.row(2L, 0.9)
.build();
TopNRowNumberOperatorFactory operatorFactory = new TopNRowNumberOperatorFactory(
0,
new PlanNodeId("test"),
ImmutableList.of(BIGINT, DOUBLE),
Ints.asList(1, 0),
Ints.asList(0),
ImmutableList.of(BIGINT),
Ints.asList(1),
ImmutableList.of(SortOrder.ASC_NULLS_LAST),
3,
false,
Optional.empty(),
10,
joinCompiler);
MaterializedResult expected = resultBuilder(driverContext.getSession(), DOUBLE, BIGINT, BIGINT)
.row(0.3, 1L, 1L)
.row(0.4, 1L, 2L)
.row(0.5, 1L, 3L)
.row(0.2, 2L, 1L)
.row(0.7, 2L, 2L)
.row(0.8, 2L, 3L)
.row(0.1, 3L, 1L)
.row(0.91, 3L, 2L)
.build();
assertOperatorEquals(operatorFactory, driverContext, input, expected);
}
@Test
public void testTopNRowNumberUnPartitioned()
throws Exception
{
List<Page> input = rowPagesBuilder(BIGINT, DOUBLE)
.row(1L, 0.3)
.row(2L, 0.2)
.row(3L, 0.1)
.row(3L, 0.91)
.pageBreak()
.row(1L, 0.4)
.pageBreak()
.row(1L, 0.5)
.row(1L, 0.6)
.row(2L, 0.7)
.row(2L, 0.8)
.pageBreak()
.row(2L, 0.9)
.build();
TopNRowNumberOperatorFactory operatorFactory = new TopNRowNumberOperatorFactory(
0,
new PlanNodeId("test"),
ImmutableList.of(BIGINT, DOUBLE),
Ints.asList(1, 0),
Ints.asList(),
ImmutableList.of(),
Ints.asList(1),
ImmutableList.of(SortOrder.ASC_NULLS_LAST),
3,
false,
Optional.empty(),
10,
joinCompiler);
MaterializedResult expected = resultBuilder(driverContext.getSession(), DOUBLE, BIGINT, BIGINT)
.row(0.1, 3L, 1L)
.row(0.2, 2L, 2L)
.row(0.3, 1L, 3L)
.build();
assertOperatorEquals(operatorFactory, driverContext, input, expected);
}
}