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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.arrow.algorithm.sort;
import static org.junit.Assert.assertTrue;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import java.util.stream.IntStream;
import org.apache.arrow.memory.BufferAllocator;
import org.apache.arrow.memory.RootAllocator;
import org.apache.arrow.vector.BaseFixedWidthVector;
import org.apache.arrow.vector.BigIntVector;
import org.apache.arrow.vector.Float4Vector;
import org.apache.arrow.vector.Float8Vector;
import org.apache.arrow.vector.IntVector;
import org.apache.arrow.vector.SmallIntVector;
import org.apache.arrow.vector.TinyIntVector;
import org.apache.arrow.vector.testing.ValueVectorDataPopulator;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* Test cases for {@link FixedWidthOutOfPlaceVectorSorter}.
*/
public class TestFixedWidthOutOfPlaceVectorSorter extends TestOutOfPlaceVectorSorter {
private BufferAllocator allocator;
public TestFixedWidthOutOfPlaceVectorSorter(boolean generalSorter) {
super(generalSorter);
}
<V extends BaseFixedWidthVector> OutOfPlaceVectorSorter<V> getSorter() {
return generalSorter ? new GeneralOutOfPlaceVectorSorter<>() : new FixedWidthOutOfPlaceVectorSorter<>();
}
@Before
public void prepare() {
allocator = new RootAllocator(1024 * 1024);
}
@After
public void shutdown() {
allocator.close();
}
@Test
public void testSortByte() {
try (TinyIntVector vec = new TinyIntVector("", allocator)) {
vec.allocateNew(10);
vec.setValueCount(10);
// fill data to sort
vec.set(0, 10);
vec.set(1, 8);
vec.setNull(2);
vec.set(3, 10);
vec.set(4, 12);
vec.set(5, 17);
vec.setNull(6);
vec.set(7, 23);
vec.set(8, 35);
vec.set(9, 2);
// sort the vector
OutOfPlaceVectorSorter<TinyIntVector> sorter = getSorter();
VectorValueComparator<TinyIntVector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
TinyIntVector sortedVec =
(TinyIntVector) vec.getField().getFieldType().createNewSingleVector("", allocator, null);
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
Assert.assertEquals(vec.getValueCount(), sortedVec.getValueCount());
assertTrue(sortedVec.isNull(0));
assertTrue(sortedVec.isNull(1));
Assert.assertEquals((byte) 2, sortedVec.get(2));
Assert.assertEquals((byte) 8, sortedVec.get(3));
Assert.assertEquals((byte) 10, sortedVec.get(4));
Assert.assertEquals((byte) 10, sortedVec.get(5));
Assert.assertEquals((byte) 12, sortedVec.get(6));
Assert.assertEquals((byte) 17, sortedVec.get(7));
Assert.assertEquals((byte) 23, sortedVec.get(8));
Assert.assertEquals((byte) 35, sortedVec.get(9));
sortedVec.close();
}
}
@Test
public void testSortShort() {
try (SmallIntVector vec = new SmallIntVector("", allocator)) {
vec.allocateNew(10);
vec.setValueCount(10);
// fill data to sort
vec.set(0, 10);
vec.set(1, 8);
vec.setNull(2);
vec.set(3, 10);
vec.set(4, 12);
vec.set(5, 17);
vec.setNull(6);
vec.set(7, 23);
vec.set(8, 35);
vec.set(9, 2);
// sort the vector
OutOfPlaceVectorSorter<SmallIntVector> sorter = getSorter();
VectorValueComparator<SmallIntVector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
SmallIntVector sortedVec =
(SmallIntVector) vec.getField().getFieldType().createNewSingleVector("", allocator, null);
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
Assert.assertEquals(vec.getValueCount(), sortedVec.getValueCount());
assertTrue(sortedVec.isNull(0));
assertTrue(sortedVec.isNull(1));
Assert.assertEquals((short) 2, sortedVec.get(2));
Assert.assertEquals((short) 8, sortedVec.get(3));
Assert.assertEquals((short) 10, sortedVec.get(4));
Assert.assertEquals((short) 10, sortedVec.get(5));
Assert.assertEquals((short) 12, sortedVec.get(6));
Assert.assertEquals((short) 17, sortedVec.get(7));
Assert.assertEquals((short) 23, sortedVec.get(8));
Assert.assertEquals((short) 35, sortedVec.get(9));
sortedVec.close();
}
}
@Test
public void testSortInt() {
try (IntVector vec = new IntVector("", allocator)) {
vec.allocateNew(10);
vec.setValueCount(10);
// fill data to sort
vec.set(0, 10);
vec.set(1, 8);
vec.setNull(2);
vec.set(3, 10);
vec.set(4, 12);
vec.set(5, 17);
vec.setNull(6);
vec.set(7, 23);
vec.set(8, 35);
vec.set(9, 2);
// sort the vector
OutOfPlaceVectorSorter<IntVector> sorter = getSorter();
VectorValueComparator<IntVector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
IntVector sortedVec = (IntVector) vec.getField().getFieldType().createNewSingleVector("", allocator, null);
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
Assert.assertEquals(vec.getValueCount(), sortedVec.getValueCount());
assertTrue(sortedVec.isNull(0));
assertTrue(sortedVec.isNull(1));
Assert.assertEquals(2, sortedVec.get(2));
Assert.assertEquals(8, sortedVec.get(3));
Assert.assertEquals(10, sortedVec.get(4));
Assert.assertEquals(10, sortedVec.get(5));
Assert.assertEquals(12, sortedVec.get(6));
Assert.assertEquals(17, sortedVec.get(7));
Assert.assertEquals(23, sortedVec.get(8));
Assert.assertEquals(35, sortedVec.get(9));
sortedVec.close();
}
}
@Test
public void testSortLong() {
try (BigIntVector vec = new BigIntVector("", allocator)) {
vec.allocateNew(10);
vec.setValueCount(10);
// fill data to sort
vec.set(0, 10L);
vec.set(1, 8L);
vec.setNull(2);
vec.set(3, 10L);
vec.set(4, 12L);
vec.set(5, 17L);
vec.setNull(6);
vec.set(7, 23L);
vec.set(8, 1L << 35L);
vec.set(9, 2L);
// sort the vector
OutOfPlaceVectorSorter<BigIntVector> sorter = getSorter();
VectorValueComparator<BigIntVector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
BigIntVector sortedVec = (BigIntVector) vec.getField().getFieldType().createNewSingleVector("", allocator, null);
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
Assert.assertEquals(vec.getValueCount(), sortedVec.getValueCount());
assertTrue(sortedVec.isNull(0));
assertTrue(sortedVec.isNull(1));
Assert.assertEquals(2L, sortedVec.get(2));
Assert.assertEquals(8L, sortedVec.get(3));
Assert.assertEquals(10L, sortedVec.get(4));
Assert.assertEquals(10L, sortedVec.get(5));
Assert.assertEquals(12L, sortedVec.get(6));
Assert.assertEquals(17L, sortedVec.get(7));
Assert.assertEquals(23L, sortedVec.get(8));
Assert.assertEquals(1L << 35L, sortedVec.get(9));
sortedVec.close();
}
}
@Test
public void testSortFloat() {
try (Float4Vector vec = new Float4Vector("", allocator)) {
vec.allocateNew(10);
vec.setValueCount(10);
// fill data to sort
vec.set(0, 10f);
vec.set(1, 8f);
vec.setNull(2);
vec.set(3, 10f);
vec.set(4, 12f);
vec.set(5, 17f);
vec.setNull(6);
vec.set(7, 23f);
vec.set(8, Float.NaN);
vec.set(9, 2f);
// sort the vector
OutOfPlaceVectorSorter<Float4Vector> sorter = getSorter();
VectorValueComparator<Float4Vector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
Float4Vector sortedVec = (Float4Vector) vec.getField().getFieldType().createNewSingleVector("", allocator, null);
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
Assert.assertEquals(vec.getValueCount(), sortedVec.getValueCount());
assertTrue(sortedVec.isNull(0));
assertTrue(sortedVec.isNull(1));
Assert.assertEquals(2f, sortedVec.get(2), 0f);
Assert.assertEquals(8f, sortedVec.get(3), 0f);
Assert.assertEquals(10f, sortedVec.get(4), 0f);
Assert.assertEquals(10f, sortedVec.get(5), 0f);
Assert.assertEquals(12f, sortedVec.get(6), 0f);
Assert.assertEquals(17f, sortedVec.get(7), 0f);
Assert.assertEquals(23f, sortedVec.get(8), 0f);
Assert.assertEquals(Float.NaN, sortedVec.get(9), 0f);
sortedVec.close();
}
}
@Test
public void testSortDouble() {
try (Float8Vector vec = new Float8Vector("", allocator)) {
vec.allocateNew(10);
vec.setValueCount(10);
// fill data to sort
vec.set(0, 10);
vec.set(1, 8);
vec.setNull(2);
vec.set(3, 10);
vec.set(4, 12);
vec.set(5, 17);
vec.setNull(6);
vec.set(7, Double.NaN);
vec.set(8, 35);
vec.set(9, 2);
// sort the vector
OutOfPlaceVectorSorter<Float8Vector> sorter = getSorter();
VectorValueComparator<Float8Vector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
Float8Vector sortedVec = (Float8Vector) vec.getField().getFieldType().createNewSingleVector("", allocator, null);
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
Assert.assertEquals(vec.getValueCount(), sortedVec.getValueCount());
assertTrue(sortedVec.isNull(0));
assertTrue(sortedVec.isNull(1));
Assert.assertEquals(2, sortedVec.get(2), 0);
Assert.assertEquals(8, sortedVec.get(3), 0);
Assert.assertEquals(10, sortedVec.get(4), 0);
Assert.assertEquals(10, sortedVec.get(5), 0);
Assert.assertEquals(12, sortedVec.get(6), 0);
Assert.assertEquals(17, sortedVec.get(7), 0);
Assert.assertEquals(35, sortedVec.get(8), 0);
Assert.assertEquals(Double.NaN, sortedVec.get(9), 0);
sortedVec.close();
}
}
@Test
public void testSortInt2() {
try (IntVector vec = new IntVector("", allocator)) {
ValueVectorDataPopulator.setVector(vec,
0, 1, 2, 3, 4, 5, 30, 31, 32, 33,
34, 35, 60, 61, 62, 63, 64, 65, 6, 7,
8, 9, 10, 11, 36, 37, 38, 39, 40, 41,
66, 67, 68, 69, 70, 71);
// sort the vector
OutOfPlaceVectorSorter<IntVector> sorter = getSorter();
VectorValueComparator<IntVector> comparator = DefaultVectorComparators.createDefaultComparator(vec);
try (IntVector sortedVec = (IntVector) vec.getField().getFieldType().createNewSingleVector("", allocator, null)) {
sortedVec.allocateNew(vec.getValueCount());
sortedVec.setValueCount(vec.getValueCount());
sorter.sortOutOfPlace(vec, sortedVec, comparator);
// verify results
int[] actual = new int[sortedVec.getValueCount()];
IntStream.range(0, sortedVec.getValueCount()).forEach(
i -> actual[i] = sortedVec.get(i));
assertArrayEquals(
new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71}, actual);
}
}
}
}