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.LuceneTestCase;
import org.apache.lucene.store.Directory;
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import java.io.IOException;
public class TestSegmentTermDocs extends LuceneTestCase {
private Document testDoc = new Document();
private Directory dir;
private SegmentInfo info;
@Override
public void setUp() throws Exception {
super.setUp();
dir = newDirectory();
DocHelper.setupDoc(testDoc);
info = DocHelper.writeDoc(random, dir, testDoc);
}
@Override
public void tearDown() throws Exception {
dir.close();
super.tearDown();
}
public void test() {
assertTrue(dir != null);
}
public void testTermDocs() throws IOException {
testTermDocs(1);
}
public void testTermDocs(int indexDivisor) throws IOException {
//After adding the document, we should be able to read it back in
SegmentReader reader = SegmentReader.get(true, info, indexDivisor);
assertTrue(reader != null);
assertEquals(indexDivisor, reader.getTermInfosIndexDivisor());
SegmentTermDocs segTermDocs = new SegmentTermDocs(reader);
segTermDocs.seek(new Term(DocHelper.TEXT_FIELD_2_KEY, "field"));
if (segTermDocs.next() == true)
{
int docId = segTermDocs.doc();
assertTrue(docId == 0);
int freq = segTermDocs.freq();
assertTrue(freq == 3);
}
reader.close();
}
public void testBadSeek() throws IOException {
testBadSeek(1);
}
public void testBadSeek(int indexDivisor) throws IOException {
{
//After adding the document, we should be able to read it back in
SegmentReader reader = SegmentReader.get(true, info, indexDivisor);
assertTrue(reader != null);
SegmentTermDocs segTermDocs = new SegmentTermDocs(reader);
segTermDocs.seek(new Term("textField2", "bad"));
assertTrue(segTermDocs.next() == false);
reader.close();
}
{
//After adding the document, we should be able to read it back in
SegmentReader reader = SegmentReader.get(true, info, indexDivisor);
assertTrue(reader != null);
SegmentTermDocs segTermDocs = new SegmentTermDocs(reader);
segTermDocs.seek(new Term("junk", "bad"));
assertTrue(segTermDocs.next() == false);
reader.close();
}
}
public void testSkipTo() throws IOException {
testSkipTo(1);
}
public void testSkipTo(int indexDivisor) throws IOException {
Directory dir = newDirectory();
IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random)).setMergePolicy(newLogMergePolicy()));
Term ta = new Term("content","aaa");
for(int i = 0; i < 10; i++)
addDoc(writer, "aaa aaa aaa aaa");
Term tb = new Term("content","bbb");
for(int i = 0; i < 16; i++)
addDoc(writer, "bbb bbb bbb bbb");
Term tc = new Term("content","ccc");
for(int i = 0; i < 50; i++)
addDoc(writer, "ccc ccc ccc ccc");
// assure that we deal with a single segment
writer.forceMerge(1);
writer.close();
IndexReader reader = IndexReader.open(dir, null, true, indexDivisor);
TermDocs tdocs = reader.termDocs();
// without optimization (assumption skipInterval == 16)
// with next
tdocs.seek(ta);
assertTrue(tdocs.next());
assertEquals(0, tdocs.doc());
assertEquals(4, tdocs.freq());
assertTrue(tdocs.next());
assertEquals(1, tdocs.doc());
assertEquals(4, tdocs.freq());
assertTrue(tdocs.skipTo(0));
assertEquals(2, tdocs.doc());
assertTrue(tdocs.skipTo(4));
assertEquals(4, tdocs.doc());
assertTrue(tdocs.skipTo(9));
assertEquals(9, tdocs.doc());
assertFalse(tdocs.skipTo(10));
// without next
tdocs.seek(ta);
assertTrue(tdocs.skipTo(0));
assertEquals(0, tdocs.doc());
assertTrue(tdocs.skipTo(4));
assertEquals(4, tdocs.doc());
assertTrue(tdocs.skipTo(9));
assertEquals(9, tdocs.doc());
assertFalse(tdocs.skipTo(10));
// exactly skipInterval documents and therefore with optimization
// with next
tdocs.seek(tb);
assertTrue(tdocs.next());
assertEquals(10, tdocs.doc());
assertEquals(4, tdocs.freq());
assertTrue(tdocs.next());
assertEquals(11, tdocs.doc());
assertEquals(4, tdocs.freq());
assertTrue(tdocs.skipTo(5));
assertEquals(12, tdocs.doc());
assertTrue(tdocs.skipTo(15));
assertEquals(15, tdocs.doc());
assertTrue(tdocs.skipTo(24));
assertEquals(24, tdocs.doc());
assertTrue(tdocs.skipTo(25));
assertEquals(25, tdocs.doc());
assertFalse(tdocs.skipTo(26));
// without next
tdocs.seek(tb);
assertTrue(tdocs.skipTo(5));
assertEquals(10, tdocs.doc());
assertTrue(tdocs.skipTo(15));
assertEquals(15, tdocs.doc());
assertTrue(tdocs.skipTo(24));
assertEquals(24, tdocs.doc());
assertTrue(tdocs.skipTo(25));
assertEquals(25, tdocs.doc());
assertFalse(tdocs.skipTo(26));
// much more than skipInterval documents and therefore with optimization
// with next
tdocs.seek(tc);
assertTrue(tdocs.next());
assertEquals(26, tdocs.doc());
assertEquals(4, tdocs.freq());
assertTrue(tdocs.next());
assertEquals(27, tdocs.doc());
assertEquals(4, tdocs.freq());
assertTrue(tdocs.skipTo(5));
assertEquals(28, tdocs.doc());
assertTrue(tdocs.skipTo(40));
assertEquals(40, tdocs.doc());
assertTrue(tdocs.skipTo(57));
assertEquals(57, tdocs.doc());
assertTrue(tdocs.skipTo(74));
assertEquals(74, tdocs.doc());
assertTrue(tdocs.skipTo(75));
assertEquals(75, tdocs.doc());
assertFalse(tdocs.skipTo(76));
//without next
tdocs.seek(tc);
assertTrue(tdocs.skipTo(5));
assertEquals(26, tdocs.doc());
assertTrue(tdocs.skipTo(40));
assertEquals(40, tdocs.doc());
assertTrue(tdocs.skipTo(57));
assertEquals(57, tdocs.doc());
assertTrue(tdocs.skipTo(74));
assertEquals(74, tdocs.doc());
assertTrue(tdocs.skipTo(75));
assertEquals(75, tdocs.doc());
assertFalse(tdocs.skipTo(76));
tdocs.close();
reader.close();
dir.close();
}
public void testIndexDivisor() throws IOException {
testDoc = new Document();
DocHelper.setupDoc(testDoc);
DocHelper.writeDoc(random, dir, testDoc);
testTermDocs(2);
testBadSeek(2);
testSkipTo(2);
}
private void addDoc(IndexWriter writer, String value) throws IOException
{
Document doc = new Document();
doc.add(newField("content", value, Field.Store.NO, Field.Index.ANALYZED));
writer.addDocument(doc);
}
}