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.util.*;
import org.apache.lucene.store.*;
import org.apache.lucene.search.*;
import org.apache.lucene.analysis.*;
import org.apache.lucene.analysis.tokenattributes.*;
import org.apache.lucene.document.*;
import org.apache.lucene.index.FieldInfo.IndexOptions;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.junit.Ignore;
// Best to run this test w/ plenty of RAM (because of the
// terms index):
//
// ant compile-test
//
// java -server -Xmx8g -d64 -cp .:lib/junit-4.7.jar:./build/classes/test:./build/classes/test-framework:./build/classes/java -Dlucene.version=4.0-dev -Dtests.directory=MMapDirectory -DtempDir=build -ea org.junit.runner.JUnitCore org.apache.lucene.index.Test2BTerms
//
public class Test2BTerms extends LuceneTestCase {
private final class MyTokenStream extends TokenStream {
private final int tokensPerDoc;
private int tokenCount;
private final CharTermAttribute charTerm;
private final static int TOKEN_LEN = 5;
private final char[] chars;
public final List<String> savedTerms = new ArrayList<String>();
private int nextSave;
public MyTokenStream(int tokensPerDoc) {
super();
this.tokensPerDoc = tokensPerDoc;
charTerm = addAttribute(CharTermAttribute.class);
chars = charTerm.resizeBuffer(TOKEN_LEN);
charTerm.setLength(TOKEN_LEN);
nextSave = _TestUtil.nextInt(random, 500000, 1000000);
}
@Override
public boolean incrementToken() {
if (tokenCount >= tokensPerDoc) {
return false;
}
_TestUtil.randomFixedLengthUnicodeString(random, chars, 0, TOKEN_LEN);
tokenCount++;
if (--nextSave == 0) {
final String s = new String(chars, 0, TOKEN_LEN);
System.out.println("TEST: save term=" + s + " [" + toHexString(s) + "]");
savedTerms.add(s);
nextSave = _TestUtil.nextInt(random, 500000, 1000000);
}
return true;
}
@Override
public void reset() {
tokenCount = 0;
}
}
@Ignore("Takes ~4 hours to run on a fast machine!!")
public void test2BTerms() throws IOException {
final long TERM_COUNT = ((long) Integer.MAX_VALUE) + 100000000;
final int TERMS_PER_DOC = _TestUtil.nextInt(random, 100000, 1000000);
List<String> savedTerms = null;
MockDirectoryWrapper dir = newFSDirectory(_TestUtil.getTempDir("2BTerms"));
dir.setThrottling(MockDirectoryWrapper.Throttling.NEVER);
dir.setCheckIndexOnClose(false); // don't double-checkindex
//Directory dir = newFSDirectory(new File("/p/lucene/indices/2bindex"));
if (true) {
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();
final MyTokenStream ts = new MyTokenStream(TERMS_PER_DOC);
Field field = new Field("field", ts);
field.setIndexOptions(IndexOptions.DOCS_ONLY);
field.setOmitNorms(true);
doc.add(field);
//w.setInfoStream(System.out);
final int numDocs = (int) (TERM_COUNT/TERMS_PER_DOC);
System.out.println("TERMS_PER_DOC=" + TERMS_PER_DOC);
System.out.println("numDocs=" + numDocs);
for(int i=0;i<numDocs;i++) {
final long t0 = System.currentTimeMillis();
w.addDocument(doc);
System.out.println(i + " of " + numDocs + " " + (System.currentTimeMillis()-t0) + " msec");
}
savedTerms = ts.savedTerms;
System.out.println("TEST: optimize");
w.optimize();
System.out.println("TEST: close writer");
w.close();
}
System.out.println("TEST: open reader");
final IndexReader r = IndexReader.open(dir);
if (savedTerms == null) {
savedTerms = findTerms(r);
}
final int numSavedTerms = savedTerms.size();
final List<String> bigOrdTerms = new ArrayList<String>(savedTerms.subList(numSavedTerms-10, numSavedTerms));
System.out.println("TEST: test big ord terms...");
testSavedTerms(r, bigOrdTerms);
System.out.println("TEST: test all saved terms...");
testSavedTerms(r, savedTerms);
r.close();
System.out.println("TEST: now CheckIndex...");
CheckIndex.Status status = _TestUtil.checkIndex(dir);
final long tc = status.segmentInfos.get(0).termIndexStatus.termCount;
assertTrue("count " + tc + " is not > " + Integer.MAX_VALUE, tc > Integer.MAX_VALUE);
dir.close();
}
private List<String> findTerms(IndexReader r) throws IOException {
System.out.println("TEST: findTerms");
final TermEnum termEnum = r.terms();
final List<String> savedTerms = new ArrayList<String>();
int nextSave = _TestUtil.nextInt(random, 500000, 1000000);
while(termEnum.next()) {
if (--nextSave == 0) {
savedTerms.add(termEnum.term().text());
System.out.println("TEST: add " + termEnum.term());
nextSave = _TestUtil.nextInt(random, 500000, 1000000);
}
}
return savedTerms;
}
private String toHexString(String s) {
byte[] bytes;
try {
bytes = s.getBytes("UTF-8");
} catch (UnsupportedEncodingException uee) {
throw new RuntimeException(uee);
}
StringBuilder sb = new StringBuilder();
for(byte b : bytes) {
if (sb.length() > 0) {
sb.append(' ');
}
sb.append(Integer.toHexString(b&0xFF));
}
return sb.toString();
}
private void testSavedTerms(IndexReader r, List<String> terms) throws IOException {
System.out.println("TEST: run " + terms.size() + " terms on reader=" + r);
IndexSearcher s = new IndexSearcher(r);
Collections.shuffle(terms);
boolean failed = false;
for(int iter=0;iter<10*terms.size();iter++) {
final String term = terms.get(random.nextInt(terms.size()));
System.out.println("TEST: search " + term + " [" + toHexString(term) + "]");
final long t0 = System.currentTimeMillis();
final int count = s.search(new TermQuery(new Term("field", term)), 1).totalHits;
if (count <= 0) {
System.out.println(" FAILED: count=" + count);
failed = true;
}
final long t1 = System.currentTimeMillis();
System.out.println(" took " + (t1-t0) + " millis");
final TermEnum termEnum = r.terms(new Term("field", term));
final String text = termEnum.term().text();
if (!term.equals(text)) {
System.out.println(" FAILED: wrong term: got " + text + " [" + toHexString(text) + "]");
failed = true;
}
}
assertFalse(failed);
}
}