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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.SortedSetDocValuesField;
import org.apache.lucene.document.StringField;
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.index.NoMergePolicy;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.lucene.index.ElasticsearchDirectoryReader;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.fielddata.plain.PagedBytesIndexFieldData;
import org.elasticsearch.index.fielddata.plain.SortedSetDVOrdinalsIndexFieldData;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.core.StringFieldMapper;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.indices.breaker.NoneCircuitBreakerService;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.FieldMaskingReader;
import java.util.Collections;
import static org.hamcrest.Matchers.equalTo;
public class FieldDataCacheTests extends ESTestCase {
public void testLoadGlobal_neverCacheIfFieldIsMissing() throws Exception {
Directory dir = newDirectory();
IndexWriterConfig iwc = new IndexWriterConfig(null);
iwc.setMergePolicy(NoMergePolicy.INSTANCE);
IndexWriter iw = new IndexWriter(dir, iwc);
long numDocs = scaledRandomIntBetween(32, 128);
for (int i = 1; i <= numDocs; i++) {
Document doc = new Document();
doc.add(new SortedSetDocValuesField("field1", new BytesRef(String.valueOf(i))));
doc.add(new StringField("field2", String.valueOf(i), Field.Store.NO));
iw.addDocument(doc);
if (i % 24 == 0) {
iw.commit();
}
}
iw.close();
DirectoryReader ir = ElasticsearchDirectoryReader.wrap(DirectoryReader.open(dir), new ShardId("_index", "_na_", 0));
DummyAccountingFieldDataCache fieldDataCache = new DummyAccountingFieldDataCache();
// Testing SortedSetDVOrdinalsIndexFieldData:
SortedSetDVOrdinalsIndexFieldData sortedSetDVOrdinalsIndexFieldData = createSortedDV("field1", fieldDataCache);
sortedSetDVOrdinalsIndexFieldData.loadGlobal(ir);
assertThat(fieldDataCache.cachedGlobally, equalTo(1));
sortedSetDVOrdinalsIndexFieldData.loadGlobal(new FieldMaskingReader("field1", ir));
assertThat(fieldDataCache.cachedGlobally, equalTo(1));
// Testing PagedBytesIndexFieldData
PagedBytesIndexFieldData pagedBytesIndexFieldData = createPagedBytes("field2", fieldDataCache);
pagedBytesIndexFieldData.loadGlobal(ir);
assertThat(fieldDataCache.cachedGlobally, equalTo(2));
pagedBytesIndexFieldData.loadGlobal(new FieldMaskingReader("field2", ir));
assertThat(fieldDataCache.cachedGlobally, equalTo(2));
ir.close();
dir.close();
}
private SortedSetDVOrdinalsIndexFieldData createSortedDV(String fieldName, IndexFieldDataCache indexFieldDataCache) {
FieldDataType fieldDataType = new StringFieldMapper.StringFieldType().fieldDataType();
return new SortedSetDVOrdinalsIndexFieldData(createIndexSettings(), indexFieldDataCache, fieldName, new NoneCircuitBreakerService(), fieldDataType);
}
private PagedBytesIndexFieldData createPagedBytes(String fieldName, IndexFieldDataCache indexFieldDataCache) {
FieldDataType fieldDataType = new StringFieldMapper.StringFieldType().fieldDataType();
return new PagedBytesIndexFieldData(createIndexSettings(), fieldName, fieldDataType, indexFieldDataCache, new NoneCircuitBreakerService());
}
private IndexSettings createIndexSettings() {
Settings settings = Settings.EMPTY;
IndexMetaData indexMetaData = IndexMetaData.builder("_name")
.settings(Settings.builder().put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT))
.numberOfShards(1)
.numberOfReplicas(0)
.creationDate(System.currentTimeMillis())
.build();
return new IndexSettings(indexMetaData, settings);
}
private class DummyAccountingFieldDataCache implements IndexFieldDataCache {
private int cachedGlobally = 0;
@Override
public <FD extends AtomicFieldData, IFD extends IndexFieldData<FD>> FD load(LeafReaderContext context, IFD indexFieldData) throws Exception {
return indexFieldData.loadDirect(context);
}
@Override
public <FD extends AtomicFieldData, IFD extends IndexFieldData.Global<FD>> IFD load(DirectoryReader indexReader, IFD indexFieldData) throws Exception {
cachedGlobally++;
return (IFD) indexFieldData.localGlobalDirect(indexReader);
}
@Override
public void clear() {
}
@Override
public void clear(String fieldName) {
}
}
}
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