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package org.apache.lucene.index;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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import org.apache.lucene.util.LuceneTestCase;
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import org.apache.lucene.store.Directory;
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import org.apache.lucene.store.BufferedIndexInput;
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import org.apache.lucene.analysis.MockAnalyzer;
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import org.apache.lucene.document.Document;
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import org.apache.lucene.document.Field;
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import org.apache.lucene.document.Field.Index;
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import org.apache.lucene.document.Field.Store;
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import org.apache.lucene.index.IndexWriterConfig.OpenMode;
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import java.io.IOException;
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import java.util.Collection;
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public class TestSegmentMerger extends LuceneTestCase {
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//The variables for the new merged segment
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private Directory mergedDir;
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private String mergedSegment = "test";
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//First segment to be merged
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private Directory merge1Dir;
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private Document doc1 = new Document();
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private SegmentReader reader1 = null;
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//Second Segment to be merged
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private Directory merge2Dir;
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private Document doc2 = new Document();
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private SegmentReader reader2 = null;
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public void setUp() throws Exception {
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mergedDir = newDirectory();
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merge1Dir = newDirectory();
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merge2Dir = newDirectory();
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DocHelper.setupDoc(doc1);
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SegmentInfo info1 = DocHelper.writeDoc(random, merge1Dir, doc1);
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DocHelper.setupDoc(doc2);
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SegmentInfo info2 = DocHelper.writeDoc(random, merge2Dir, doc2);
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reader1 = SegmentReader.get(true, info1, IndexReader.DEFAULT_TERMS_INDEX_DIVISOR);
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reader2 = SegmentReader.get(true, info2, IndexReader.DEFAULT_TERMS_INDEX_DIVISOR);
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public void tearDown() throws Exception {
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assertTrue(mergedDir != null);
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assertTrue(merge1Dir != null);
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assertTrue(merge2Dir != null);
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assertTrue(reader1 != null);
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assertTrue(reader2 != null);
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public void testMerge() throws IOException {
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SegmentMerger merger = new SegmentMerger(mergedDir, IndexWriterConfig.DEFAULT_TERM_INDEX_INTERVAL, mergedSegment, null, null, new FieldInfos());
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int docsMerged = merger.merge();
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assertTrue(docsMerged == 2);
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//Should be able to open a new SegmentReader against the new directory
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SegmentReader mergedReader = SegmentReader.get(false, mergedDir,
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new SegmentInfo(mergedSegment, docsMerged, mergedDir, false, true,
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merger.fieldInfos().hasProx(),
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merger.fieldInfos().hasVectors()),
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BufferedIndexInput.BUFFER_SIZE, true, IndexReader.DEFAULT_TERMS_INDEX_DIVISOR);
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assertTrue(mergedReader != null);
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assertTrue(mergedReader.numDocs() == 2);
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Document newDoc1 = mergedReader.document(0);
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assertTrue(newDoc1 != null);
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//There are 2 unstored fields on the document
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assertTrue(DocHelper.numFields(newDoc1) == DocHelper.numFields(doc1) - DocHelper.unstored.size());
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Document newDoc2 = mergedReader.document(1);
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assertTrue(newDoc2 != null);
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assertTrue(DocHelper.numFields(newDoc2) == DocHelper.numFields(doc2) - DocHelper.unstored.size());
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TermDocs termDocs = mergedReader.termDocs(new Term(DocHelper.TEXT_FIELD_2_KEY, "field"));
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assertTrue(termDocs != null);
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assertTrue(termDocs.next() == true);
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Collection<String> stored = mergedReader.getFieldNames(IndexReader.FieldOption.INDEXED_WITH_TERMVECTOR);
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assertTrue(stored != null);
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//System.out.println("stored size: " + stored.size());
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assertTrue("We do not have 3 fields that were indexed with term vector",stored.size() == 3);
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TermFreqVector vector = mergedReader.getTermFreqVector(0, DocHelper.TEXT_FIELD_2_KEY);
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assertTrue(vector != null);
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String [] terms = vector.getTerms();
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assertTrue(terms != null);
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//System.out.println("Terms size: " + terms.length);
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assertTrue(terms.length == 3);
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int [] freqs = vector.getTermFrequencies();
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assertTrue(freqs != null);
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//System.out.println("Freqs size: " + freqs.length);
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assertTrue(vector instanceof TermPositionVector == true);
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for (int i = 0; i < terms.length; i++) {
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String term = terms[i];
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//System.out.println("Term: " + term + " Freq: " + freq);
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assertTrue(DocHelper.FIELD_2_TEXT.indexOf(term) != -1);
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assertTrue(DocHelper.FIELD_2_FREQS[i] == freq);
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TestSegmentReader.checkNorms(mergedReader);
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mergedReader.close();
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public void testInvalidFilesToCreateCompound() throws Exception {
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Directory dir = newDirectory();
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IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random));
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IndexWriter w = new IndexWriter(dir, iwc);
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// Create an index w/ .del file
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w.addDocument(new Document());
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Document doc = new Document();
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doc.add(new Field("c", "test", Store.NO, Index.ANALYZED));
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w.deleteDocuments(new Term("c", "test"));
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// Assert that SM fails if .del exists
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SegmentMerger sm = new SegmentMerger(dir, 1, "a", null, null, null);
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boolean doFail = false;
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sm.createCompoundFile("b1", w.segmentInfos.info(0));
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} catch (AssertionError e) {
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assertFalse("should not have been able to create a .cfs with .del and .s* files", doFail);
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// Create an index w/ .s*
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w = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).setOpenMode(OpenMode.CREATE));
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doc = new Document();
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doc.add(new Field("c", "test", Store.NO, Index.ANALYZED));
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IndexReader r = IndexReader.open(dir, false);
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r.setNorm(0, "c", (byte) 1);
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// Assert that SM fails if .s* exists
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SegmentInfos sis = new SegmentInfos();
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sm.createCompoundFile("b2", sis.info(0));
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} catch (AssertionError e) {
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assertFalse("should not have been able to create a .cfs with .del and .s* files", doFail);