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.
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import java.util.ArrayList;
import org.apache.lucene.document.BinaryDocValuesField;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.document.SortedDocValuesField;
import org.apache.lucene.document.SortedSetDocValuesField;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.Bits;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TestUtil;
import org.apache.lucene.util.TestUtil;
/** Tests MultiDocValues versus ordinary segment merging */
public class TestMultiDocValues extends LuceneTestCase {
public void testNumerics() throws Exception {
Directory dir = newDirectory();
Document doc = new Document();
Field field = new NumericDocValuesField("numbers", 0);
doc.add(field);
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
field.setLongValue(random().nextLong());
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
NumericDocValues multi = MultiDocValues.getNumericValues(ir, "numbers");
NumericDocValues single = merged.getNumericDocValues("numbers");
for (int i = 0; i < numDocs; i++) {
assertEquals(single.get(i), multi.get(i));
}
ir.close();
ir2.close();
dir.close();
}
public void testBinary() throws Exception {
Directory dir = newDirectory();
Document doc = new Document();
BytesRef ref = new BytesRef();
Field field = new BinaryDocValuesField("bytes", ref);
doc.add(field);
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
ref.copyChars(TestUtil.randomUnicodeString(random()));
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
BinaryDocValues multi = MultiDocValues.getBinaryValues(ir, "bytes");
BinaryDocValues single = merged.getBinaryDocValues("bytes");
BytesRef actual = new BytesRef();
BytesRef expected = new BytesRef();
for (int i = 0; i < numDocs; i++) {
single.get(i, expected);
multi.get(i, actual);
assertEquals(expected, actual);
}
ir.close();
ir2.close();
dir.close();
}
public void testSorted() throws Exception {
Directory dir = newDirectory();
Document doc = new Document();
BytesRef ref = new BytesRef();
Field field = new SortedDocValuesField("bytes", ref);
doc.add(field);
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
ref.copyChars(TestUtil.randomUnicodeString(random()));
if (defaultCodecSupportsDocsWithField() && random().nextInt(7) == 0) {
iw.addDocument(new Document());
}
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
SortedDocValues multi = MultiDocValues.getSortedValues(ir, "bytes");
SortedDocValues single = merged.getSortedDocValues("bytes");
assertEquals(single.getValueCount(), multi.getValueCount());
BytesRef actual = new BytesRef();
BytesRef expected = new BytesRef();
for (int i = 0; i < numDocs; i++) {
// check ord
assertEquals(single.getOrd(i), multi.getOrd(i));
// check value
single.get(i, expected);
multi.get(i, actual);
assertEquals(expected, actual);
}
ir.close();
ir2.close();
dir.close();
}
// tries to make more dups than testSorted
public void testSortedWithLotsOfDups() throws Exception {
Directory dir = newDirectory();
Document doc = new Document();
BytesRef ref = new BytesRef();
Field field = new SortedDocValuesField("bytes", ref);
doc.add(field);
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
ref.copyChars(TestUtil.randomSimpleString(random(), 2));
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
SortedDocValues multi = MultiDocValues.getSortedValues(ir, "bytes");
SortedDocValues single = merged.getSortedDocValues("bytes");
assertEquals(single.getValueCount(), multi.getValueCount());
BytesRef actual = new BytesRef();
BytesRef expected = new BytesRef();
for (int i = 0; i < numDocs; i++) {
// check ord
assertEquals(single.getOrd(i), multi.getOrd(i));
// check ord value
single.get(i, expected);
multi.get(i, actual);
assertEquals(expected, actual);
}
ir.close();
ir2.close();
dir.close();
}
public void testSortedSet() throws Exception {
assumeTrue("codec does not support SORTED_SET", defaultCodecSupportsSortedSet());
Directory dir = newDirectory();
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
Document doc = new Document();
int numValues = random().nextInt(5);
for (int j = 0; j < numValues; j++) {
doc.add(new SortedSetDocValuesField("bytes", new BytesRef(TestUtil.randomUnicodeString(random()))));
}
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
SortedSetDocValues multi = MultiDocValues.getSortedSetValues(ir, "bytes");
SortedSetDocValues single = merged.getSortedSetDocValues("bytes");
if (multi == null) {
assertNull(single);
} else {
assertEquals(single.getValueCount(), multi.getValueCount());
BytesRef actual = new BytesRef();
BytesRef expected = new BytesRef();
// check values
for (long i = 0; i < single.getValueCount(); i++) {
single.lookupOrd(i, expected);
multi.lookupOrd(i, actual);
assertEquals(expected, actual);
}
// check ord list
for (int i = 0; i < numDocs; i++) {
single.setDocument(i);
ArrayList<Long> expectedList = new ArrayList<>();
long ord;
while ((ord = single.nextOrd()) != SortedSetDocValues.NO_MORE_ORDS) {
expectedList.add(ord);
}
multi.setDocument(i);
int upto = 0;
while ((ord = multi.nextOrd()) != SortedSetDocValues.NO_MORE_ORDS) {
assertEquals(expectedList.get(upto).longValue(), ord);
upto++;
}
assertEquals(expectedList.size(), upto);
}
}
ir.close();
ir2.close();
dir.close();
}
// tries to make more dups than testSortedSet
public void testSortedSetWithDups() throws Exception {
assumeTrue("codec does not support SORTED_SET", defaultCodecSupportsSortedSet());
Directory dir = newDirectory();
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
Document doc = new Document();
int numValues = random().nextInt(5);
for (int j = 0; j < numValues; j++) {
doc.add(new SortedSetDocValuesField("bytes", new BytesRef(TestUtil.randomSimpleString(random(), 2))));
}
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
SortedSetDocValues multi = MultiDocValues.getSortedSetValues(ir, "bytes");
SortedSetDocValues single = merged.getSortedSetDocValues("bytes");
if (multi == null) {
assertNull(single);
} else {
assertEquals(single.getValueCount(), multi.getValueCount());
BytesRef actual = new BytesRef();
BytesRef expected = new BytesRef();
// check values
for (long i = 0; i < single.getValueCount(); i++) {
single.lookupOrd(i, expected);
multi.lookupOrd(i, actual);
assertEquals(expected, actual);
}
// check ord list
for (int i = 0; i < numDocs; i++) {
single.setDocument(i);
ArrayList<Long> expectedList = new ArrayList<>();
long ord;
while ((ord = single.nextOrd()) != SortedSetDocValues.NO_MORE_ORDS) {
expectedList.add(ord);
}
multi.setDocument(i);
int upto = 0;
while ((ord = multi.nextOrd()) != SortedSetDocValues.NO_MORE_ORDS) {
assertEquals(expectedList.get(upto).longValue(), ord);
upto++;
}
assertEquals(expectedList.size(), upto);
}
}
ir.close();
ir2.close();
dir.close();
}
public void testDocsWithField() throws Exception {
assumeTrue("codec does not support docsWithField", defaultCodecSupportsDocsWithField());
Directory dir = newDirectory();
IndexWriterConfig iwc = newIndexWriterConfig(random(), TEST_VERSION_CURRENT, null);
iwc.setMergePolicy(newLogMergePolicy());
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwc);
int numDocs = atLeast(500);
for (int i = 0; i < numDocs; i++) {
Document doc = new Document();
if (random().nextInt(4) >= 0) {
doc.add(new NumericDocValuesField("numbers", random().nextLong()));
}
doc.add(new NumericDocValuesField("numbersAlways", random().nextLong()));
iw.addDocument(doc);
if (random().nextInt(17) == 0) {
iw.commit();
}
}
DirectoryReader ir = iw.getReader();
iw.forceMerge(1);
DirectoryReader ir2 = iw.getReader();
AtomicReader merged = getOnlySegmentReader(ir2);
iw.close();
Bits multi = MultiDocValues.getDocsWithField(ir, "numbers");
Bits single = merged.getDocsWithField("numbers");
if (multi == null) {
assertNull(single);
} else {
assertEquals(single.length(), multi.length());
for (int i = 0; i < numDocs; i++) {
assertEquals(single.get(i), multi.get(i));
}
}
multi = MultiDocValues.getDocsWithField(ir, "numbersAlways");
single = merged.getDocsWithField("numbersAlways");
assertEquals(single.length(), multi.length());
for (int i = 0; i < numDocs; i++) {
assertEquals(single.get(i), multi.get(i));
}
ir.close();
ir2.close();
dir.close();
}
}