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* 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
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package org.elasticsearch.common.lucene.uid;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.Bits;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.FixedBitSet;
import org.elasticsearch.common.lucene.Lucene;
import org.elasticsearch.common.lucene.uid.Versions.DocIdAndVersion;
import org.elasticsearch.index.mapper.internal.UidFieldMapper;
import org.elasticsearch.index.mapper.internal.VersionFieldMapper;
import org.elasticsearch.test.ESTestCase;
/**
* test per-segment lookup of version-related datastructures
*/
public class VersionLookupTests extends ESTestCase {
/**
* test version lookup actually works
*/
public void testSimple() throws Exception {
Directory dir = newDirectory();
IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig(Lucene.STANDARD_ANALYZER));
Document doc = new Document();
doc.add(new Field(UidFieldMapper.NAME, "6", UidFieldMapper.Defaults.FIELD_TYPE));
doc.add(new NumericDocValuesField(VersionFieldMapper.NAME, 87));
writer.addDocument(doc);
DirectoryReader reader = DirectoryReader.open(writer, false);
LeafReaderContext segment = reader.leaves().get(0);
PerThreadIDAndVersionLookup lookup = new PerThreadIDAndVersionLookup(segment.reader());
// found doc
DocIdAndVersion result = lookup.lookup(new BytesRef("6"), null, segment);
assertNotNull(result);
assertEquals(87, result.version);
assertEquals(0, result.docId);
// not found doc
assertNull(lookup.lookup(new BytesRef("7"), null, segment));
// deleted doc
assertNull(lookup.lookup(new BytesRef("6"), new Bits.MatchNoBits(1), segment));
reader.close();
writer.close();
dir.close();
}
/**
* test version lookup with two documents matching the ID
*/
public void testTwoDocuments() throws Exception {
Directory dir = newDirectory();
IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig(Lucene.STANDARD_ANALYZER));
Document doc = new Document();
doc.add(new Field(UidFieldMapper.NAME, "6", UidFieldMapper.Defaults.FIELD_TYPE));
doc.add(new NumericDocValuesField(VersionFieldMapper.NAME, 87));
writer.addDocument(doc);
writer.addDocument(doc);
DirectoryReader reader = DirectoryReader.open(writer, false);
LeafReaderContext segment = reader.leaves().get(0);
PerThreadIDAndVersionLookup lookup = new PerThreadIDAndVersionLookup(segment.reader());
// return the last doc when there are duplicates
DocIdAndVersion result = lookup.lookup(new BytesRef("6"), null, segment);
assertNotNull(result);
assertEquals(87, result.version);
assertEquals(1, result.docId);
// delete the first doc only
FixedBitSet live = new FixedBitSet(2);
live.set(1);
result = lookup.lookup(new BytesRef("6"), live, segment);
assertNotNull(result);
assertEquals(87, result.version);
assertEquals(1, result.docId);
// delete the second doc only
live.clear(1);
live.set(0);
result = lookup.lookup(new BytesRef("6"), live, segment);
assertNotNull(result);
assertEquals(87, result.version);
assertEquals(0, result.docId);
// delete both docs
assertNull(lookup.lookup(new BytesRef("6"), new Bits.MatchNoBits(2), segment));
reader.close();
writer.close();
dir.close();
}
}