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.store.BufferedIndexInput;
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.Field.Index;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import java.io.IOException;
import java.util.Collection;
public class TestSegmentMerger extends LuceneTestCase {
//The variables for the new merged segment
private Directory mergedDir;
private String mergedSegment = "test";
//First segment to be merged
private Directory merge1Dir;
private Document doc1 = new Document();
private SegmentReader reader1 = null;
//Second Segment to be merged
private Directory merge2Dir;
private Document doc2 = new Document();
private SegmentReader reader2 = null;
@Override
public void setUp() throws Exception {
super.setUp();
mergedDir = newDirectory();
merge1Dir = newDirectory();
merge2Dir = newDirectory();
DocHelper.setupDoc(doc1);
SegmentInfo info1 = DocHelper.writeDoc(random, merge1Dir, doc1);
DocHelper.setupDoc(doc2);
SegmentInfo info2 = DocHelper.writeDoc(random, merge2Dir, doc2);
reader1 = SegmentReader.get(true, info1, IndexReader.DEFAULT_TERMS_INDEX_DIVISOR);
reader2 = SegmentReader.get(true, info2, IndexReader.DEFAULT_TERMS_INDEX_DIVISOR);
}
@Override
public void tearDown() throws Exception {
reader1.close();
reader2.close();
mergedDir.close();
merge1Dir.close();
merge2Dir.close();
super.tearDown();
}
public void test() {
assertTrue(mergedDir != null);
assertTrue(merge1Dir != null);
assertTrue(merge2Dir != null);
assertTrue(reader1 != null);
assertTrue(reader2 != null);
}
public void testMerge() throws IOException {
SegmentMerger merger = new SegmentMerger(mergedDir, IndexWriterConfig.DEFAULT_TERM_INDEX_INTERVAL, mergedSegment, null, null, new FieldInfos());
merger.add(reader1);
merger.add(reader2);
int docsMerged = merger.merge();
assertTrue(docsMerged == 2);
//Should be able to open a new SegmentReader against the new directory
SegmentReader mergedReader = SegmentReader.get(false, mergedDir,
new SegmentInfo(mergedSegment, docsMerged, mergedDir, false, true,
merger.fieldInfos().hasProx(),
merger.fieldInfos().hasVectors()),
BufferedIndexInput.BUFFER_SIZE, true, IndexReader.DEFAULT_TERMS_INDEX_DIVISOR);
assertTrue(mergedReader != null);
assertTrue(mergedReader.numDocs() == 2);
Document newDoc1 = mergedReader.document(0);
assertTrue(newDoc1 != null);
//There are 2 unstored fields on the document
assertTrue(DocHelper.numFields(newDoc1) == DocHelper.numFields(doc1) - DocHelper.unstored.size());
Document newDoc2 = mergedReader.document(1);
assertTrue(newDoc2 != null);
assertTrue(DocHelper.numFields(newDoc2) == DocHelper.numFields(doc2) - DocHelper.unstored.size());
TermDocs termDocs = mergedReader.termDocs(new Term(DocHelper.TEXT_FIELD_2_KEY, "field"));
assertTrue(termDocs != null);
assertTrue(termDocs.next() == true);
Collection<String> stored = mergedReader.getFieldNames(IndexReader.FieldOption.INDEXED_WITH_TERMVECTOR);
assertTrue(stored != null);
//System.out.println("stored size: " + stored.size());
assertTrue("We do not have 3 fields that were indexed with term vector",stored.size() == 3);
TermFreqVector vector = mergedReader.getTermFreqVector(0, DocHelper.TEXT_FIELD_2_KEY);
assertTrue(vector != null);
String [] terms = vector.getTerms();
assertTrue(terms != null);
//System.out.println("Terms size: " + terms.length);
assertTrue(terms.length == 3);
int [] freqs = vector.getTermFrequencies();
assertTrue(freqs != null);
//System.out.println("Freqs size: " + freqs.length);
assertTrue(vector instanceof TermPositionVector == true);
for (int i = 0; i < terms.length; i++) {
String term = terms[i];
int freq = freqs[i];
//System.out.println("Term: " + term + " Freq: " + freq);
assertTrue(DocHelper.FIELD_2_TEXT.indexOf(term) != -1);
assertTrue(DocHelper.FIELD_2_FREQS[i] == freq);
}
TestSegmentReader.checkNorms(mergedReader);
mergedReader.close();
}
// LUCENE-3143
public void testInvalidFilesToCreateCompound() throws Exception {
Directory dir = newDirectory();
IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random));
IndexWriter w = new IndexWriter(dir, iwc);
// Create an index w/ .del file
w.addDocument(new Document());
Document doc = new Document();
doc.add(new Field("c", "test", Store.NO, Index.ANALYZED));
w.addDocument(doc);
w.commit();
w.deleteDocuments(new Term("c", "test"));
w.close();
// Assert that SM fails if .del exists
SegmentMerger sm = new SegmentMerger(dir, 1, "a", null, null, null);
try {
sm.createCompoundFile("b1", w.segmentInfos.info(0));
fail("should not have been able to create a .cfs with .del and .s* files");
} catch (AssertionError e) {
// expected
}
// Create an index w/ .s*
w = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).setOpenMode(OpenMode.CREATE));
doc = new Document();
doc.add(new Field("c", "test", Store.NO, Index.ANALYZED));
w.addDocument(doc);
w.close();
IndexReader r = IndexReader.open(dir, false);
r.setNorm(0, "c", (byte) 1);
r.close();
// Assert that SM fails if .s* exists
try {
sm.createCompoundFile("b2", w.segmentInfos.info(0));
fail("should not have been able to create a .cfs with .del and .s* files");
} catch (AssertionError e) {
// expected
}
dir.close();
}
}