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.
*/
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.analysis.MockTokenizer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.TermRangeQuery;
import org.apache.lucene.store.AlreadyClosedException;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util._TestUtil;
public class TestReaderClosed extends LuceneTestCase {
private IndexReader reader;
private Directory dir;
@Override
public void setUp() throws Exception {
super.setUp();
dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random(), MockTokenizer.KEYWORD, false))
.setMaxBufferedDocs(_TestUtil.nextInt(random(), 50, 1000)));
Document doc = new Document();
Field field = newStringField("field", "", Field.Store.NO);
doc.add(field);
// we generate aweful prefixes: good for testing.
// but for preflex codec, the test can be very slow, so use less iterations.
int num = atLeast(10);
for (int i = 0; i < num; i++) {
field.setStringValue(_TestUtil.randomUnicodeString(random(), 10));
writer.addDocument(doc);
}
reader = writer.getReader();
writer.close();
}
public void test() throws Exception {
assertTrue(reader.getRefCount() > 0);
IndexSearcher searcher = newSearcher(reader);
TermRangeQuery query = TermRangeQuery.newStringRange("field", "a", "z", true, true);
searcher.search(query, 5);
reader.close();
try {
searcher.search(query, 5);
} catch (AlreadyClosedException ace) {
// expected
}
}
// LUCENE-3800
public void testReaderChaining() throws Exception {
assertTrue(reader.getRefCount() > 0);
IndexReader wrappedReader = SlowCompositeReaderWrapper.wrap(reader);
wrappedReader = new ParallelAtomicReader((AtomicReader) wrappedReader);
IndexSearcher searcher = newSearcher(wrappedReader);
TermRangeQuery query = TermRangeQuery.newStringRange("field", "a", "z", true, true);
searcher.search(query, 5);
reader.close(); // close original child reader
try {
searcher.search(query, 5);
} catch (AlreadyClosedException ace) {
assertEquals(
"this IndexReader cannot be used anymore as one of its child readers was closed",
ace.getMessage()
);
} finally {
// shutdown executor: in case of wrap-wrap-wrapping
searcher.getIndexReader().close();
}
}
@Override
public void tearDown() throws Exception {
dir.close();
super.tearDown();
}
}