/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* 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.linkedin.pinot.index.reader;
import com.linkedin.pinot.common.segment.ReadMode;
import com.linkedin.pinot.core.io.reader.ReaderContext;
import com.linkedin.pinot.core.io.reader.SingleColumnMultiValueReader;
import com.linkedin.pinot.core.io.writer.SingleColumnMultiValueWriter;
import com.linkedin.pinot.core.segment.memory.PinotDataBuffer;
import java.io.File;
import java.io.RandomAccessFile;
import java.lang.reflect.Constructor;
import java.nio.channels.FileChannel;
import java.util.Random;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.Test;
public class FixedBitMultiValueTest {
private static final Logger LOGGER = LoggerFactory.getLogger(FixedBitMultiValueTest.class);
@Test
public void testSingleColMultiValue() throws Exception {
testSingleColMultiValue(
com.linkedin.pinot.core.io.writer.impl.v1.FixedBitMultiValueWriter.class,
com.linkedin.pinot.core.io.reader.impl.v1.FixedBitMultiValueReader.class);
testSingleColMultiValueWithContext(
com.linkedin.pinot.core.io.writer.impl.v1.FixedBitMultiValueWriter.class,
com.linkedin.pinot.core.io.reader.impl.v1.FixedBitMultiValueReader.class);
testSingleColMultiValue(
com.linkedin.pinot.core.io.writer.impl.v2.FixedBitMultiValueWriter.class,
com.linkedin.pinot.core.io.reader.impl.v2.FixedBitMultiValueReader.class);
}
public void testSingleColMultiValue(Class<? extends SingleColumnMultiValueWriter> writerClazz,
Class<? extends SingleColumnMultiValueReader> readerClazz) throws Exception {
LOGGER.info("Testing for writerClazz:{} readerClass:{}", writerClazz.getName(),
readerClazz.getName());
Constructor<? extends SingleColumnMultiValueWriter> writerClazzConstructor =
writerClazz.getConstructor(new Class[] {
File.class, int.class, int.class, int.class
});
Constructor<? extends SingleColumnMultiValueReader> readerClazzConstructor =
readerClazz.getConstructor(new Class[] {
PinotDataBuffer.class, int.class, int.class, int.class, boolean.class
});
int maxBits = 1;
while (maxBits < 32) {
final String fileName = getClass().getName() + "_test_single_col_mv_fixed_bit.dat";
final File f = new File(fileName);
f.delete();
int numDocs = 10;
int maxNumValues = 100;
final int[][] data = new int[numDocs][];
final Random r = new Random();
final int maxValue = (int) Math.pow(2, maxBits);
int totalNumValues = 0;
int[] startOffsets = new int[numDocs];
int[] lengths = new int[numDocs];
for (int i = 0; i < data.length; i++) {
final int numValues = r.nextInt(maxNumValues) + 1;
data[i] = new int[numValues];
for (int j = 0; j < numValues; j++) {
data[i][j] = r.nextInt(maxValue);
}
startOffsets[i] = totalNumValues;
lengths[i] = numValues;
totalNumValues = totalNumValues + numValues;
}
SingleColumnMultiValueWriter writer = writerClazzConstructor.newInstance(new Object[] {
f, numDocs, totalNumValues, maxBits
});
for (int i = 0; i < data.length; i++) {
writer.setIntArray(i, data[i]);
}
writer.close();
final RandomAccessFile raf = new RandomAccessFile(f, "rw");
raf.close();
// Test heap mode
PinotDataBuffer heapBuffer = PinotDataBuffer.fromFile(f, ReadMode.heap, FileChannel.MapMode.READ_ONLY, "testing");
SingleColumnMultiValueReader<? extends ReaderContext> heapReader =
readerClazzConstructor.newInstance(new Object[] {
heapBuffer, numDocs, totalNumValues, maxBits, false
});
final int[] readValues = new int[maxNumValues];
for (int i = 0; i < data.length; i++) {
final int numValues = heapReader.getIntArray(i, readValues);
Assert.assertEquals(numValues, data[i].length);
for (int j = 0; j < numValues; j++) {
Assert.assertEquals(readValues[j], data[i][j]);
}
}
heapReader.close();
heapBuffer.close();
// Test mmap mode
PinotDataBuffer mmapBuffer = PinotDataBuffer.fromFile(f, ReadMode.mmap, FileChannel.MapMode.READ_ONLY, "testing");
SingleColumnMultiValueReader<? extends ReaderContext> mmapReader =
readerClazzConstructor.newInstance(new Object[] {
mmapBuffer, numDocs, totalNumValues, maxBits, false
});
for (int i = 0; i < data.length; i++) {
final int numValues = mmapReader.getIntArray(i, readValues);
Assert.assertEquals(numValues, data[i].length);
for (int j = 0; j < numValues; j++) {
Assert.assertEquals(readValues[j], data[i][j]);
}
}
// Assert.assertEquals(FileReaderTestUtils.getNumOpenFiles(f), 2);
mmapReader.close();
mmapBuffer.close();
// Assert.assertEquals(FileReaderTestUtils.getNumOpenFiles(f), 0);
f.delete();
maxBits = maxBits + 1;
}
LOGGER.info("DONE: Testing for writerClazz:{} readerClass:{}", writerClazz.getName(),
readerClazz.getName());
}
public void testSingleColMultiValueWithContext(
Class<? extends SingleColumnMultiValueWriter> writerClazz,
Class<? extends SingleColumnMultiValueReader<? extends ReaderContext>> readerClazz) throws Exception {
LOGGER.info("Testing for writerClazz:{} readerClass:{}", writerClazz.getName(),
readerClazz.getName());
Constructor<? extends SingleColumnMultiValueWriter> writerClazzConstructor =
writerClazz.getConstructor(new Class[] {
File.class, int.class, int.class, int.class
});
Constructor<? extends SingleColumnMultiValueReader<? extends ReaderContext>> readerClazzConstructor =
readerClazz.getConstructor(new Class[] {
PinotDataBuffer.class, int.class, int.class, int.class, boolean.class
});
int maxBits = 1;
while (maxBits < 32) {
final String fileName = getClass().getName() + "_test_single_col_mv_fixed_bit.dat";
final File f = new File(fileName);
f.delete();
int numDocs = 10;
int maxNumValues = 100;
final int[][] data = new int[numDocs][];
final Random r = new Random();
final int maxValue = (int) Math.pow(2, maxBits);
int totalNumValues = 0;
int[] startOffsets = new int[numDocs];
int[] lengths = new int[numDocs];
for (int i = 0; i < data.length; i++) {
final int numValues = r.nextInt(maxNumValues) + 1;
data[i] = new int[numValues];
for (int j = 0; j < numValues; j++) {
data[i][j] = r.nextInt(maxValue);
}
startOffsets[i] = totalNumValues;
lengths[i] = numValues;
totalNumValues = totalNumValues + numValues;
}
SingleColumnMultiValueWriter writer = writerClazzConstructor.newInstance(new Object[] {
f, numDocs, totalNumValues, maxBits
});
for (int i = 0; i < data.length; i++) {
writer.setIntArray(i, data[i]);
}
writer.close();
final RandomAccessFile raf = new RandomAccessFile(f, "rw");
raf.close();
// Test heap mode
PinotDataBuffer heapBuffer = PinotDataBuffer.fromFile(f, ReadMode.heap, FileChannel.MapMode.READ_ONLY, "testing");
SingleColumnMultiValueReader heapReader =
readerClazzConstructor.newInstance(new Object[] {
heapBuffer, numDocs, totalNumValues, maxBits, false
});
ReaderContext context = heapReader.createContext();
final int[] readValues = new int[maxNumValues];
for (int i = 0; i < data.length; i++) {
final int numValues = heapReader.getIntArray(i, readValues, context);
if(numValues != data[i].length){
System.err.println("Failed Expected:"+ data[i].length + " Actual:"+ numValues);
int length = heapReader.getIntArray(i, readValues, context);
}
Assert.assertEquals(numValues, data[i].length);
for (int j = 0; j < numValues; j++) {
Assert.assertEquals(readValues[j], data[i][j]);
}
}
heapReader.close();
heapBuffer.close();
// Test mmap mode
PinotDataBuffer mmapBuffer = PinotDataBuffer.fromFile(f, ReadMode.mmap, FileChannel.MapMode.READ_ONLY, "testing");
SingleColumnMultiValueReader<? extends ReaderContext> mmapReader =
readerClazzConstructor.newInstance(new Object[] {
mmapBuffer, numDocs, totalNumValues, maxBits, false
});
for (int i = 0; i < data.length; i++) {
final int numValues = mmapReader.getIntArray(i, readValues);
Assert.assertEquals(numValues, data[i].length);
for (int j = 0; j < numValues; j++) {
Assert.assertEquals(readValues[j], data[i][j]);
}
}
mmapReader.close();
mmapBuffer.close();
f.delete();
maxBits = maxBits + 1;
}
LOGGER.info("DONE: Testing for writerClazz:{} readerClass:{}", writerClazz.getName(),
readerClazz.getName());
}
}