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.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.document.TextField;
import org.apache.lucene.store.BaseDirectoryWrapper;
import org.apache.lucene.store.MockDirectoryWrapper;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TimeUnits;
import org.apache.lucene.util._TestUtil;
import org.apache.lucene.util.LuceneTestCase.SuppressCodecs;
import org.junit.Ignore;
import com.carrotsearch.randomizedtesting.annotations.TimeoutSuite;
/**
* Test indexes ~82M docs with 52 positions each, so you get > Integer.MAX_VALUE positions
* @lucene.experimental
*/
@SuppressCodecs({ "SimpleText", "Memory", "Direct" })
@TimeoutSuite(millis = 4 * TimeUnits.HOUR)
public class Test2BPositions extends LuceneTestCase {
// uses lots of space and takes a few minutes
@Ignore("Very slow. Enable manually by removing @Ignore.")
public void test() throws Exception {
BaseDirectoryWrapper dir = newFSDirectory(_TestUtil.getTempDir("2BPositions"));
if (dir instanceof MockDirectoryWrapper) {
((MockDirectoryWrapper)dir).setThrottling(MockDirectoryWrapper.Throttling.NEVER);
}
IndexWriter w = new IndexWriter(dir,
new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(IndexWriterConfig.DISABLE_AUTO_FLUSH)
.setRAMBufferSizeMB(256.0)
.setMergeScheduler(new ConcurrentMergeScheduler())
.setMergePolicy(newLogMergePolicy(false, 10))
.setOpenMode(IndexWriterConfig.OpenMode.CREATE));
MergePolicy mp = w.getConfig().getMergePolicy();
if (mp instanceof LogByteSizeMergePolicy) {
// 1 petabyte:
((LogByteSizeMergePolicy) mp).setMaxMergeMB(1024*1024*1024);
}
Document doc = new Document();
FieldType ft = new FieldType(TextField.TYPE_NOT_STORED);
ft.setOmitNorms(true);
Field field = new Field("field", new MyTokenStream(), ft);
doc.add(field);
final int numDocs = (Integer.MAX_VALUE / 26) + 1;
for (int i = 0; i < numDocs; i++) {
w.addDocument(doc);
if (VERBOSE && i % 100000 == 0) {
System.out.println(i + " of " + numDocs + "...");
}
}
w.forceMerge(1);
w.close();
dir.close();
}
public static final class MyTokenStream extends TokenStream {
private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
private final PositionIncrementAttribute posIncAtt = addAttribute(PositionIncrementAttribute.class);
int index;
public MyTokenStream() {
termAtt.setLength(1);
termAtt.buffer()[0] = 'a';
}
@Override
public boolean incrementToken() {
if (index < 52) {
posIncAtt.setPositionIncrement(1+index);
index++;
return true;
}
return false;
}
@Override
public void reset() {
index = 0;
}
}
}