package org.apache.lucene.index;
/*
* 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.
*/
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Random;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.document.BinaryDocValuesField;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.document.SortedDocValuesField;
import org.apache.lucene.search.FieldCache;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TestUtil;
import org.apache.lucene.util.TestUtil;
public class TestDocValuesWithThreads extends LuceneTestCase {
public void test() throws Exception {
Directory dir = newDirectory();
IndexWriter w = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setMergePolicy(newLogMergePolicy()));
final List<Long> numbers = new ArrayList<>();
final List<BytesRef> binary = new ArrayList<>();
final List<BytesRef> sorted = new ArrayList<>();
final int numDocs = atLeast(100);
for(int i=0;i<numDocs;i++) {
Document d = new Document();
long number = random().nextLong();
d.add(new NumericDocValuesField("number", number));
BytesRef bytes = new BytesRef(TestUtil.randomRealisticUnicodeString(random()));
d.add(new BinaryDocValuesField("bytes", bytes));
binary.add(bytes);
bytes = new BytesRef(TestUtil.randomRealisticUnicodeString(random()));
d.add(new SortedDocValuesField("sorted", bytes));
sorted.add(bytes);
w.addDocument(d);
numbers.add(number);
}
w.forceMerge(1);
final IndexReader r = w.getReader();
w.close();
assertEquals(1, r.leaves().size());
final AtomicReader ar = r.leaves().get(0).reader();
int numThreads = TestUtil.nextInt(random(), 2, 5);
List<Thread> threads = new ArrayList<>();
final CountDownLatch startingGun = new CountDownLatch(1);
for(int t=0;t<numThreads;t++) {
final Random threadRandom = new Random(random().nextLong());
Thread thread = new Thread() {
@Override
public void run() {
try {
//NumericDocValues ndv = ar.getNumericDocValues("number");
FieldCache.Longs ndv = FieldCache.DEFAULT.getLongs(ar, "number", false);
//BinaryDocValues bdv = ar.getBinaryDocValues("bytes");
BinaryDocValues bdv = FieldCache.DEFAULT.getTerms(ar, "bytes", false);
SortedDocValues sdv = FieldCache.DEFAULT.getTermsIndex(ar, "sorted");
startingGun.await();
int iters = atLeast(1000);
BytesRef scratch = new BytesRef();
BytesRef scratch2 = new BytesRef();
for(int iter=0;iter<iters;iter++) {
int docID = threadRandom.nextInt(numDocs);
switch(threadRandom.nextInt(4)) {
case 0:
assertEquals((int) numbers.get(docID).longValue(), FieldCache.DEFAULT.getInts(ar, "number", false).get(docID));
break;
case 1:
assertEquals(numbers.get(docID).longValue(), FieldCache.DEFAULT.getLongs(ar, "number", false).get(docID));
break;
case 2:
assertEquals(Float.intBitsToFloat((int) numbers.get(docID).longValue()), FieldCache.DEFAULT.getFloats(ar, "number", false).get(docID), 0.0f);
break;
case 3:
assertEquals(Double.longBitsToDouble(numbers.get(docID).longValue()), FieldCache.DEFAULT.getDoubles(ar, "number", false).get(docID), 0.0);
break;
}
bdv.get(docID, scratch);
assertEquals(binary.get(docID), scratch);
// Cannot share a single scratch against two "sources":
sdv.get(docID, scratch2);
assertEquals(sorted.get(docID), scratch2);
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
};
thread.start();
threads.add(thread);
}
startingGun.countDown();
for(Thread thread : threads) {
thread.join();
}
r.close();
dir.close();
}
public void test2() throws Exception {
Random random = random();
final int NUM_DOCS = atLeast(100);
final Directory dir = newDirectory();
final RandomIndexWriter writer = new RandomIndexWriter(random, dir);
final boolean allowDups = random.nextBoolean();
final Set<String> seen = new HashSet<>();
if (VERBOSE) {
System.out.println("TEST: NUM_DOCS=" + NUM_DOCS + " allowDups=" + allowDups);
}
int numDocs = 0;
final List<BytesRef> docValues = new ArrayList<>();
// TODO: deletions
while (numDocs < NUM_DOCS) {
final String s;
if (random.nextBoolean()) {
s = TestUtil.randomSimpleString(random);
} else {
s = TestUtil.randomUnicodeString(random);
}
final BytesRef br = new BytesRef(s);
if (!allowDups) {
if (seen.contains(s)) {
continue;
}
seen.add(s);
}
if (VERBOSE) {
System.out.println(" " + numDocs + ": s=" + s);
}
final Document doc = new Document();
doc.add(new SortedDocValuesField("stringdv", br));
doc.add(new NumericDocValuesField("id", numDocs));
docValues.add(br);
writer.addDocument(doc);
numDocs++;
if (random.nextInt(40) == 17) {
// force flush
writer.getReader().close();
}
}
writer.forceMerge(1);
final DirectoryReader r = writer.getReader();
writer.close();
final AtomicReader sr = getOnlySegmentReader(r);
final long END_TIME = System.currentTimeMillis() + (TEST_NIGHTLY ? 30 : 1);
final int NUM_THREADS = TestUtil.nextInt(random(), 1, 10);
Thread[] threads = new Thread[NUM_THREADS];
for(int thread=0;thread<NUM_THREADS;thread++) {
threads[thread] = new Thread() {
@Override
public void run() {
Random random = random();
final SortedDocValues stringDVDirect;
final NumericDocValues docIDToID;
try {
stringDVDirect = sr.getSortedDocValues("stringdv");
docIDToID = sr.getNumericDocValues("id");
assertNotNull(stringDVDirect);
} catch (IOException ioe) {
throw new RuntimeException(ioe);
}
while(System.currentTimeMillis() < END_TIME) {
final SortedDocValues source;
source = stringDVDirect;
final BytesRef scratch = new BytesRef();
for(int iter=0;iter<100;iter++) {
final int docID = random.nextInt(sr.maxDoc());
source.get(docID, scratch);
assertEquals(docValues.get((int) docIDToID.get(docID)), scratch);
}
}
}
};
threads[thread].start();
}
for(Thread thread : threads) {
thread.join();
}
r.close();
dir.close();
}
}