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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.fielddata;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.SortedDocValuesField;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.SortedDocValues;
import org.apache.lucene.search.FieldDoc;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.SortField;
import org.apache.lucene.search.TopFieldDocs;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.action.admin.indices.mapping.put.PutMappingRequest;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.lucene.index.ElasticsearchDirectoryReader;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.fielddata.plain.ParentChildIndexFieldData;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.mapper.ParentFieldMapper;
import org.elasticsearch.index.mapper.Uid;
import org.elasticsearch.index.mapper.UidFieldMapper;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.search.MultiValueMode;
import org.junit.Before;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.nullValue;
public class ParentChildFieldDataTests extends AbstractFieldDataTestCase {
private final String parentType = "parent";
private final String childType = "child";
private final String grandChildType = "grand-child";
@Before
public void setupData() throws Exception {
mapperService.merge(
childType, new CompressedXContent(PutMappingRequest.buildFromSimplifiedDef(childType, "_parent", "type=" + parentType).string()), MapperService.MergeReason.MAPPING_UPDATE, false
);
mapperService.merge(
grandChildType, new CompressedXContent(PutMappingRequest.buildFromSimplifiedDef(grandChildType, "_parent", "type=" + childType).string()), MapperService.MergeReason.MAPPING_UPDATE, false
);
Document d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(parentType, "1"), Field.Store.NO));
d.add(createJoinField(parentType, "1"));
writer.addDocument(d);
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(childType, "2"), Field.Store.NO));
d.add(new StringField(ParentFieldMapper.NAME, Uid.createUid(parentType, "1"), Field.Store.NO));
d.add(createJoinField(parentType, "1"));
d.add(createJoinField(childType, "2"));
writer.addDocument(d);
writer.commit();
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(childType, "3"), Field.Store.NO));
d.add(new StringField(ParentFieldMapper.NAME, Uid.createUid(parentType, "1"), Field.Store.NO));
d.add(createJoinField(parentType, "1"));
d.add(createJoinField(childType, "3"));
writer.addDocument(d);
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(parentType, "2"), Field.Store.NO));
d.add(createJoinField(parentType, "2"));
writer.addDocument(d);
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(childType, "4"), Field.Store.NO));
d.add(new StringField(ParentFieldMapper.NAME, Uid.createUid(parentType, "2"), Field.Store.NO));
d.add(createJoinField(parentType, "2"));
d.add(createJoinField(childType, "4"));
writer.addDocument(d);
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(childType, "5"), Field.Store.NO));
d.add(new StringField(ParentFieldMapper.NAME, Uid.createUid(parentType, "1"), Field.Store.NO));
d.add(createJoinField(parentType, "1"));
d.add(createJoinField(childType, "5"));
writer.addDocument(d);
writer.commit();
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid(grandChildType, "6"), Field.Store.NO));
d.add(new StringField(ParentFieldMapper.NAME, Uid.createUid(childType, "2"), Field.Store.NO));
d.add(createJoinField(childType, "2"));
writer.addDocument(d);
d = new Document();
d.add(new StringField(UidFieldMapper.NAME, Uid.createUid("other-type", "1"), Field.Store.NO));
writer.addDocument(d);
}
private SortedDocValuesField createJoinField(String parentType, String id) {
return new SortedDocValuesField(ParentFieldMapper.joinField(parentType), new BytesRef(id));
}
public void testGetBytesValues() throws Exception {
writer.forceMerge(1); // force merge to 1 segment so we can iterate through documents
IndexFieldData indexFieldData = getForField(childType);
List<LeafReaderContext> readerContexts = refreshReader();
for (LeafReaderContext readerContext : readerContexts) {
AtomicFieldData fieldData = indexFieldData.load(readerContext);
SortedBinaryDocValues bytesValues = fieldData.getBytesValues();
assertTrue(bytesValues.advanceExact(0));
assertThat(bytesValues.docValueCount(), equalTo(1));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("1"));
assertTrue(bytesValues.advanceExact(1));
assertThat(bytesValues.docValueCount(), equalTo(2));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("1"));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("2"));
assertTrue(bytesValues.advanceExact(2));
assertThat(bytesValues.docValueCount(), equalTo(2));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("1"));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("3"));
assertTrue(bytesValues.advanceExact(3));
assertThat(bytesValues.docValueCount(), equalTo(1));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("2"));
assertTrue(bytesValues.advanceExact(4));
assertThat(bytesValues.docValueCount(), equalTo(2));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("2"));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("4"));
assertTrue(bytesValues.advanceExact(5));
assertThat(bytesValues.docValueCount(), equalTo(2));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("1"));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("5"));
assertTrue(bytesValues.advanceExact(6));
assertThat(bytesValues.docValueCount(), equalTo(1));
assertThat(bytesValues.nextValue().utf8ToString(), equalTo("2"));
assertFalse(bytesValues.advanceExact(7));
}
}
public void testSorting() throws Exception {
IndexFieldData indexFieldData = getForField(parentType);
IndexSearcher searcher = new IndexSearcher(DirectoryReader.open(writer));
SortField sortField = indexFieldData.sortField("_last", MultiValueMode.MIN, null, false);
TopFieldDocs topDocs = searcher.search(new MatchAllDocsQuery(), 10, new Sort(sortField));
assertThat(topDocs.totalHits, equalTo(8));
assertThat(topDocs.scoreDocs.length, equalTo(8));
assertThat(topDocs.scoreDocs[0].doc, equalTo(0));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[0]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[1].doc, equalTo(1));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[1]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[2].doc, equalTo(2));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[2]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[3].doc, equalTo(5));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[3]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[4].doc, equalTo(3));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[4]).fields[0]).utf8ToString(), equalTo("2"));
assertThat(topDocs.scoreDocs[5].doc, equalTo(4));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[5]).fields[0]).utf8ToString(), equalTo("2"));
assertThat(topDocs.scoreDocs[6].doc, equalTo(6));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[6]).fields[0]).utf8ToString(), equalTo("2"));
assertThat(topDocs.scoreDocs[7].doc, equalTo(7));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[7]).fields[0]), equalTo(null));
sortField = indexFieldData.sortField("_last", MultiValueMode.MIN, null, true);
topDocs = searcher.search(new MatchAllDocsQuery(), 10, new Sort(sortField));
assertThat(topDocs.totalHits, equalTo(8));
assertThat(topDocs.scoreDocs.length, equalTo(8));
assertThat(topDocs.scoreDocs[0].doc, equalTo(3));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[0]).fields[0]).utf8ToString(), equalTo("2"));
assertThat(topDocs.scoreDocs[1].doc, equalTo(4));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[1]).fields[0]).utf8ToString(), equalTo("2"));
assertThat(topDocs.scoreDocs[2].doc, equalTo(6));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[2]).fields[0]).utf8ToString(), equalTo("2"));
assertThat(topDocs.scoreDocs[3].doc, equalTo(0));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[3]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[4].doc, equalTo(1));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[4]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[5].doc, equalTo(2));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[5]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[6].doc, equalTo(5));
assertThat(((BytesRef) ((FieldDoc) topDocs.scoreDocs[6]).fields[0]).utf8ToString(), equalTo("1"));
assertThat(topDocs.scoreDocs[7].doc, equalTo(7));
assertThat(((FieldDoc) topDocs.scoreDocs[7]).fields[0], nullValue());
}
public void testThreads() throws Exception {
final ParentChildIndexFieldData indexFieldData = getForField(childType);
final DirectoryReader reader = ElasticsearchDirectoryReader.wrap(
DirectoryReader.open(writer), new ShardId(new Index("test", ""), 0));
final IndexParentChildFieldData global = indexFieldData.loadGlobal(reader);
final AtomicReference<Exception> error = new AtomicReference<>();
final int numThreads = scaledRandomIntBetween(3, 8);
final Thread[] threads = new Thread[numThreads];
final CountDownLatch latch = new CountDownLatch(1);
final Map<Object, BytesRef[]> expected = new HashMap<>();
for (LeafReaderContext context : reader.leaves()) {
AtomicParentChildFieldData leafData = global.load(context);
SortedDocValues parentIds = leafData.getOrdinalsValues(parentType);
final BytesRef[] ids = new BytesRef[parentIds.getValueCount()];
for (int j = 0; j < parentIds.getValueCount(); ++j) {
final BytesRef id = parentIds.lookupOrd(j);
if (id != null) {
ids[j] = BytesRef.deepCopyOf(id);
}
}
expected.put(context.reader().getCoreCacheHelper().getKey(), ids);
}
for (int i = 0; i < numThreads; ++i) {
threads[i] = new Thread() {
@Override
public void run() {
try {
latch.await();
for (int i = 0; i < 100000; ++i) {
for (LeafReaderContext context : reader.leaves()) {
AtomicParentChildFieldData leafData = global.load(context);
SortedDocValues parentIds = leafData.getOrdinalsValues(parentType);
final BytesRef[] expectedIds = expected.get(context.reader().getCoreCacheHelper().getKey());
for (int j = 0; j < parentIds.getValueCount(); ++j) {
final BytesRef id = parentIds.lookupOrd(j);
assertEquals(expectedIds[j], id);
}
}
}
} catch (Exception e) {
error.compareAndSet(null, e);
}
}
};
threads[i].start();
}
latch.countDown();
for (Thread thread : threads) {
thread.join();
}
if (error.get() != null) {
throw error.get();
}
}
@Override
protected String getFieldDataType() {
return "_parent";
}
}
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