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BinaryRowTest.java
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BinaryRowTest.java
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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.flink.table.dataformat;
import org.apache.flink.api.common.typeutils.base.StringSerializer;
import org.apache.flink.core.memory.MemorySegment;
import org.apache.flink.core.memory.MemorySegmentFactory;
import org.apache.flink.runtime.io.disk.RandomAccessInputView;
import org.apache.flink.runtime.io.disk.RandomAccessOutputView;
import org.apache.flink.table.types.logical.IntType;
import org.apache.flink.table.types.logical.RowType;
import org.apache.flink.table.types.logical.VarCharType;
import org.apache.flink.table.typeutils.BinaryRowSerializer;
import org.junit.Assert;
import org.junit.Test;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Random;
import java.util.Set;
import static org.apache.flink.table.dataformat.BinaryString.fromBytes;
import static org.apache.flink.table.dataformat.BinaryString.fromString;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Test of {@link BinaryRow} and {@link BinaryRowWriter}.
*/
public class BinaryRowTest {
@Test
public void testBasic() {
// consider header 1 byte.
assertEquals(8, new BinaryRow(0).getFixedLengthPartSize());
assertEquals(16, new BinaryRow(1).getFixedLengthPartSize());
assertEquals(536, new BinaryRow(65).getFixedLengthPartSize());
assertEquals(1048, new BinaryRow(128).getFixedLengthPartSize());
MemorySegment segment = MemorySegmentFactory.wrap(new byte[100]);
BinaryRow row = new BinaryRow(2);
row.pointTo(segment, 10, 48);
assertTrue(row.getSegments()[0] == segment);
row.setInt(0, 5);
row.setDouble(1, 5.8D);
}
@Test
public void testSetAndGet() {
MemorySegment segment = MemorySegmentFactory.wrap(new byte[80]);
BinaryRow row = new BinaryRow(9);
row.pointTo(segment, 0, 80);
row.setNullAt(0);
row.setInt(1, 11);
row.setLong(2, 22);
row.setDouble(3, 33);
row.setBoolean(4, true);
row.setShort(5, (short) 55);
row.setByte(6, (byte) 66);
row.setFloat(7, 77f);
assertEquals(33d, (long) row.getDouble(3), 0);
assertEquals(11, row.getInt(1));
assertTrue(row.isNullAt(0));
assertEquals(55, row.getShort(5));
assertEquals(22, row.getLong(2));
assertEquals(true, row.getBoolean(4));
assertEquals((byte) 66, row.getByte(6));
assertEquals(77f, row.getFloat(7), 0);
}
@Test
public void testWriter() {
int arity = 13;
BinaryRow row = new BinaryRow(arity);
BinaryRowWriter writer = new BinaryRowWriter(row, 20);
writer.writeString(0, fromString("1"));
writer.writeString(3, fromString("1234567"));
writer.writeString(5, fromString("12345678"));
writer.writeString(9, fromString("啦啦啦啦啦我是快乐的粉刷匠"));
writer.writeBoolean(1, true);
writer.writeByte(2, (byte) 99);
writer.writeDouble(6, 87.1d);
writer.writeFloat(7, 26.1f);
writer.writeInt(8, 88);
writer.writeLong(10, 284);
writer.writeShort(11, (short) 292);
writer.setNullAt(12);
writer.complete();
assertTestWriterRow(row);
assertTestWriterRow(row.copy());
// test copy from var segments.
int subSize = row.getFixedLengthPartSize() + 10;
MemorySegment subMs1 = MemorySegmentFactory.wrap(new byte[subSize]);
MemorySegment subMs2 = MemorySegmentFactory.wrap(new byte[subSize]);
row.getSegments()[0].copyTo(0, subMs1, 0, subSize);
row.getSegments()[0].copyTo(subSize, subMs2, 0, row.getSizeInBytes() - subSize);
BinaryRow toCopy = new BinaryRow(arity);
toCopy.pointTo(new MemorySegment[]{subMs1, subMs2}, 0, row.getSizeInBytes());
assertEquals(row, toCopy);
assertTestWriterRow(toCopy);
assertTestWriterRow(toCopy.copy(new BinaryRow(arity)));
}
@Test
public void testWriteString() throws IOException {
{
// litter byte[]
BinaryRow row = new BinaryRow(1);
BinaryRowWriter writer = new BinaryRowWriter(row);
char[] chars = new char[2];
chars[0] = 0xFFFF;
chars[1] = 0;
writer.writeString(0, fromString(new String(chars)));
writer.complete();
String str = row.getString(0).toString();
assertEquals(chars[0], str.charAt(0));
assertEquals(chars[1], str.charAt(1));
}
{
// big byte[]
String str = "啦啦啦啦啦我是快乐的粉刷匠";
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeString(0, fromString(str));
writer.writeString(1, fromBytes(str.getBytes()));
writer.complete();
assertEquals(str, row.getString(0).toString());
assertEquals(str, row.getString(1).toString());
}
}
@Test
public void testPagesSer() throws IOException {
MemorySegment[] memorySegments = new MemorySegment[5];
ArrayList<MemorySegment> memorySegmentList = new ArrayList<>();
for (int i = 0; i < 5; i++) {
memorySegments[i] = MemorySegmentFactory.wrap(new byte[64]);
memorySegmentList.add(memorySegments[i]);
}
{
// multi memorySegments
String str = "啦啦啦啦啦我是快乐的粉刷匠,啦啦啦啦啦我是快乐的粉刷匠," +
"啦啦啦啦啦我是快乐的粉刷匠。";
BinaryRow row = new BinaryRow(1);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeString(0, BinaryString.fromString(str));
writer.complete();
RandomAccessOutputView out = new RandomAccessOutputView(memorySegments, 64);
BinaryRowSerializer serializer = new BinaryRowSerializer(1);
serializer.serializeToPages(row, out);
BinaryRow mapRow = serializer.mapFromPages(new RandomAccessInputView(memorySegmentList, 64));
writer.reset();
writer.writeString(0, mapRow.getString(0));
writer.complete();
assertEquals(str, row.getString(0).toString());
BinaryRow deserRow = serializer.deserializeFromPages(new RandomAccessInputView(memorySegmentList, 64));
writer.reset();
writer.writeString(0, deserRow.getString(0));
writer.complete();
assertEquals(str, row.getString(0).toString());
}
{
// multi memorySegments
String str1 = "啦啦啦啦啦我是快乐的粉刷匠,啦啦啦啦啦我是快乐的粉刷匠," +
"啦啦啦啦啦我是快乐的粉刷匠。";
String str2 = "啦啦啦啦啦我是快乐的粉刷匠。";
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeString(0, BinaryString.fromString(str1));
writer.writeString(1, BinaryString.fromString(str2));
writer.complete();
RandomAccessOutputView out = new RandomAccessOutputView(memorySegments, 64);
out.skipBytesToWrite(40);
BinaryRowSerializer serializer = new BinaryRowSerializer(2);
serializer.serializeToPages(row, out);
RandomAccessInputView in = new RandomAccessInputView(memorySegmentList, 64);
in.skipBytesToRead(40);
BinaryRow mapRow = serializer.mapFromPages(in);
writer.reset();
writer.writeString(0, mapRow.getString(0));
writer.writeString(1, mapRow.getString(1));
writer.complete();
assertEquals(str1, row.getString(0).toString());
assertEquals(str2, row.getString(1).toString());
in = new RandomAccessInputView(memorySegmentList, 64);
in.skipBytesToRead(40);
BinaryRow deserRow = serializer.deserializeFromPages(in);
writer.reset();
writer.writeString(0, deserRow.getString(0));
writer.writeString(1, deserRow.getString(1));
writer.complete();
assertEquals(str1, row.getString(0).toString());
assertEquals(str2, row.getString(1).toString());
}
}
private void assertTestWriterRow(BinaryRow row) {
assertEquals("1", row.getString(0).toString());
assertEquals(88, row.getInt(8));
assertEquals((short) 292, row.getShort(11));
assertEquals(284, row.getLong(10));
assertEquals((byte) 99, row.getByte(2));
assertEquals(87.1d, row.getDouble(6), 0);
assertEquals(26.1f, row.getFloat(7), 0);
assertEquals(true, row.getBoolean(1));
assertEquals("1234567", row.getString(3).toString());
assertEquals("12345678", row.getString(5).toString());
assertEquals("啦啦啦啦啦我是快乐的粉刷匠", row.getString(9).toString());
assertEquals(fromString("啦啦啦啦啦我是快乐的粉刷匠").hashCode(), row.getString(9).hashCode());
assertTrue(row.isNullAt(12));
}
@Test
public void testReuseWriter() {
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeString(0, fromString("01234567"));
writer.writeString(1, fromString("012345678"));
writer.complete();
assertEquals("01234567", row.getString(0).toString());
assertEquals("012345678", row.getString(1).toString());
writer.reset();
writer.writeString(0, fromString("1"));
writer.writeString(1, fromString("0123456789"));
writer.complete();
assertEquals("1", row.getString(0).toString());
assertEquals("0123456789", row.getString(1).toString());
}
@Test
public void anyNullTest() throws IOException {
{
BinaryRow row = new BinaryRow(3);
BinaryRowWriter writer = new BinaryRowWriter(row);
assertFalse(row.anyNull());
// test header should not compute by anyNull
row.setHeader((byte) 1);
assertFalse(row.anyNull());
writer.setNullAt(2);
assertTrue(row.anyNull());
writer.setNullAt(0);
assertTrue(row.anyNull(new int[]{0, 1, 2}));
assertFalse(row.anyNull(new int[]{1}));
writer.setNullAt(1);
assertTrue(row.anyNull());
}
int numFields = 80;
for (int i = 0; i < numFields; i++) {
BinaryRow row = new BinaryRow(numFields);
BinaryRowWriter writer = new BinaryRowWriter(row);
row.setHeader((byte) 17);
assertFalse(row.anyNull());
writer.setNullAt(i);
assertTrue(row.anyNull());
}
}
@Test
public void testSingleSegmentBinaryRowHashCode() throws IOException {
final Random rnd = new Random(System.currentTimeMillis());
// test hash stabilization
BinaryRow row = new BinaryRow(13);
BinaryRowWriter writer = new BinaryRowWriter(row);
for (int i = 0; i < 99; i++) {
writer.reset();
writer.writeString(0, fromString("" + rnd.nextInt()));
writer.writeString(3, fromString("01234567"));
writer.writeString(5, fromString("012345678"));
writer.writeString(9, fromString("啦啦啦啦啦我是快乐的粉刷匠"));
writer.writeBoolean(1, true);
writer.writeByte(2, (byte) 99);
writer.writeDouble(6, 87.1d);
writer.writeFloat(7, 26.1f);
writer.writeInt(8, 88);
writer.writeLong(10, 284);
writer.writeShort(11, (short) 292);
writer.setNullAt(12);
writer.complete();
BinaryRow copy = row.copy();
assertEquals(row.hashCode(), copy.hashCode());
}
// test hash distribution
int count = 999999;
Set<Integer> hashCodes = new HashSet<>(count);
for (int i = 0; i < count; i++) {
row.setInt(8, i);
hashCodes.add(row.hashCode());
}
assertEquals(count, hashCodes.size());
hashCodes.clear();
row = new BinaryRow(1);
writer = new BinaryRowWriter(row);
for (int i = 0; i < count; i++) {
writer.reset();
writer.writeString(0, fromString("啦啦啦啦啦我是快乐的粉刷匠" + i));
writer.complete();
hashCodes.add(row.hashCode());
}
Assert.assertTrue(hashCodes.size() > count * 0.997);
}
@Test
public void testHeaderSize() throws IOException {
assertEquals(8, BinaryRow.calculateBitSetWidthInBytes(56));
assertEquals(16, BinaryRow.calculateBitSetWidthInBytes(57));
assertEquals(16, BinaryRow.calculateBitSetWidthInBytes(120));
assertEquals(24, BinaryRow.calculateBitSetWidthInBytes(121));
}
@Test
public void testHeader() throws IOException {
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeInt(0, 10);
writer.setNullAt(1);
writer.writeHeader((byte) 29);
writer.complete();
BinaryRow newRow = row.copy();
assertEquals(row, newRow);
assertEquals((byte) 29, newRow.getHeader());
newRow.setHeader((byte) 19);
assertEquals((byte) 19, newRow.getHeader());
}
@Test
public void testDecimal() {
// 1.compact
{
int precision = 4;
int scale = 2;
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeDecimal(0, Decimal.fromLong(5, precision, scale), precision);
writer.setNullAt(1);
writer.complete();
assertEquals("0.05", row.getDecimal(0, precision, scale).toString());
assertTrue(row.isNullAt(1));
row.setDecimal(0, Decimal.fromLong(6, precision, scale), precision);
assertEquals("0.06", row.getDecimal(0, precision, scale).toString());
}
// 2.not compact
{
int precision = 25;
int scale = 5;
Decimal decimal1 = Decimal.fromBigDecimal(BigDecimal.valueOf(5.55), precision, scale);
Decimal decimal2 = Decimal.fromBigDecimal(BigDecimal.valueOf(6.55), precision, scale);
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeDecimal(0, decimal1, precision);
writer.writeDecimal(1, null, precision);
writer.complete();
assertEquals("5.55000", row.getDecimal(0, precision, scale).toString());
assertTrue(row.isNullAt(1));
row.setDecimal(0, decimal2, precision);
assertEquals("6.55000", row.getDecimal(0, precision, scale).toString());
}
}
@Test
public void testGeneric() {
BinaryRow row = new BinaryRow(3);
BinaryRowWriter writer = new BinaryRowWriter(row);
BinaryGeneric<String> hahah = new BinaryGeneric<>("hahah", StringSerializer.INSTANCE);
writer.writeGeneric(0, hahah);
writer.setNullAt(1);
hahah.ensureMaterialized();
writer.writeGeneric(2, hahah);
writer.complete();
BinaryGeneric<String> generic0 = row.getGeneric(0);
assertEquals(hahah, generic0);
assertTrue(row.isNullAt(1));
BinaryGeneric<String> generic2 = row.getGeneric(2);
assertEquals(hahah, generic2);
}
@Test
public void testNested() {
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
writer.writeRow(0, GenericRow.of(fromString("1"), 1), RowType.of(new VarCharType(VarCharType.MAX_LENGTH), new IntType()));
writer.setNullAt(1);
writer.complete();
BaseRow nestedRow = row.getRow(0, 2);
assertEquals("1", nestedRow.getString(0).toString());
assertEquals(1, nestedRow.getInt(1));
assertTrue(row.isNullAt(1));
}
@Test
public void testBinary() {
BinaryRow row = new BinaryRow(2);
BinaryRowWriter writer = new BinaryRowWriter(row);
byte[] bytes1 = new byte[] {1, -1, 5};
byte[] bytes2 = new byte[] {1, -1, 5, 5, 1, 5, 1, 5};
writer.writeBinary(0, bytes1);
writer.writeBinary(1, bytes2);
writer.complete();
Assert.assertArrayEquals(bytes1, row.getBinary(0));
Assert.assertArrayEquals(bytes2, row.getBinary(1));
}
}