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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.common.lucene.index;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
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.NoMergePolicy;
import org.apache.lucene.index.Term;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.IOUtils;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.test.ESTestCase;
/** Simple tests for this filterreader */
public class ESDirectoryReaderTests extends ESTestCase {
/** Test that core cache key (needed for NRT) is working */
public void testCoreCacheKey() throws Exception {
Directory dir = newDirectory();
IndexWriterConfig iwc = new IndexWriterConfig(null);
iwc.setMaxBufferedDocs(100);
iwc.setMergePolicy(NoMergePolicy.INSTANCE);
IndexWriter iw = new IndexWriter(dir, iwc);
// add two docs, id:0 and id:1
Document doc = new Document();
Field idField = new StringField("id", "", Field.Store.NO);
doc.add(idField);
idField.setStringValue("0");
iw.addDocument(doc);
idField.setStringValue("1");
iw.addDocument(doc);
// open reader
ShardId shardId = new ShardId("fake", "_na_", 1);
DirectoryReader ir = ElasticsearchDirectoryReader.wrap(DirectoryReader.open(iw), shardId);
assertEquals(2, ir.numDocs());
assertEquals(1, ir.leaves().size());
// delete id:0 and reopen
iw.deleteDocuments(new Term("id", "0"));
DirectoryReader ir2 = DirectoryReader.openIfChanged(ir);
// we should have the same cache key as before
assertEquals(1, ir2.numDocs());
assertEquals(1, ir2.leaves().size());
assertSame(ir.leaves().get(0).reader().getCoreCacheHelper().getKey(), ir2.leaves().get(0).reader().getCoreCacheHelper().getKey());
IOUtils.close(ir, ir2, iw, dir);
}
}
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