+++ /dev/null
-package org.apache.lucene.search;
-
-/**
- * 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.index.IndexWriterConfig;
-import org.apache.lucene.index.RandomIndexWriter;
-import org.apache.lucene.index.Term;
-import org.apache.lucene.index.TermEnum;
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.queryParser.ParseException;
-import org.apache.lucene.queryParser.QueryParser;
-import org.apache.lucene.search.Explanation.IDFExplanation;
-import org.apache.lucene.store.Directory;
-import org.apache.lucene.analysis.Analyzer;
-import org.apache.lucene.analysis.SimpleAnalyzer;
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.Tokenizer;
-import org.apache.lucene.analysis.standard.StandardAnalyzer;
-import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
-import org.apache.lucene.analysis.tokenattributes.TermAttribute;
-import org.apache.lucene.document.Document;
-import org.apache.lucene.document.Field;
-import org.apache.lucene.index.IndexWriter;
-import org.apache.lucene.search.IndexSearcher;
-import org.apache.lucene.store.RAMDirectory;
-import org.apache.lucene.util.LuceneTestCase;
-
-import java.io.IOException;
-import java.util.Collection;
-import java.util.LinkedList;
-import java.io.Reader;
-
-/**
- * This class tests the MultiPhraseQuery class.
- *
- *
- */
-public class TestMultiPhraseQuery extends LuceneTestCase {
-
- public void testPhrasePrefix() throws IOException {
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- add("blueberry pie", writer);
- add("blueberry strudel", writer);
- add("blueberry pizza", writer);
- add("blueberry chewing gum", writer);
- add("bluebird pizza", writer);
- add("bluebird foobar pizza", writer);
- add("piccadilly circus", writer);
-
- IndexReader reader = writer.getReader();
- IndexSearcher searcher = newSearcher(reader);
-
- // search for "blueberry pi*":
- MultiPhraseQuery query1 = new MultiPhraseQuery();
- // search for "strawberry pi*":
- MultiPhraseQuery query2 = new MultiPhraseQuery();
- query1.add(new Term("body", "blueberry"));
- query2.add(new Term("body", "strawberry"));
-
- LinkedList<Term> termsWithPrefix = new LinkedList<Term>();
- IndexReader ir = reader;
-
- // this TermEnum gives "piccadilly", "pie" and "pizza".
- String prefix = "pi";
- TermEnum te = ir.terms(new Term("body", prefix));
- do {
- if (te.term().text().startsWith(prefix))
- {
- termsWithPrefix.add(te.term());
- }
- } while (te.next());
-
- query1.add(termsWithPrefix.toArray(new Term[0]));
- assertEquals("body:\"blueberry (piccadilly pie pizza)\"", query1.toString());
- query2.add(termsWithPrefix.toArray(new Term[0]));
- assertEquals("body:\"strawberry (piccadilly pie pizza)\"", query2.toString());
-
- ScoreDoc[] result;
- result = searcher.search(query1, null, 1000).scoreDocs;
- assertEquals(2, result.length);
- result = searcher.search(query2, null, 1000).scoreDocs;
- assertEquals(0, result.length);
-
- // search for "blue* pizza":
- MultiPhraseQuery query3 = new MultiPhraseQuery();
- termsWithPrefix.clear();
- prefix = "blue";
- te = ir.terms(new Term("body", prefix));
- do {
- if (te.term().text().startsWith(prefix))
- {
- termsWithPrefix.add(te.term());
- }
- } while (te.next());
- query3.add(termsWithPrefix.toArray(new Term[0]));
- query3.add(new Term("body", "pizza"));
-
- result = searcher.search(query3, null, 1000).scoreDocs;
- assertEquals(2, result.length); // blueberry pizza, bluebird pizza
- assertEquals("body:\"(blueberry bluebird) pizza\"", query3.toString());
-
- // test slop:
- query3.setSlop(1);
- result = searcher.search(query3, null, 1000).scoreDocs;
-
- // just make sure no exc:
- searcher.explain(query3, 0);
-
- assertEquals(3, result.length); // blueberry pizza, bluebird pizza, bluebird foobar pizza
-
- MultiPhraseQuery query4 = new MultiPhraseQuery();
- try {
- query4.add(new Term("field1", "foo"));
- query4.add(new Term("field2", "foobar"));
- fail();
- } catch(IllegalArgumentException e) {
- // okay, all terms must belong to the same field
- }
-
- writer.close();
- searcher.close();
- reader.close();
- indexStore.close();
- }
-
- // LUCENE-2580
- public void testTall() throws IOException {
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- add("blueberry chocolate pie", writer);
- add("blueberry chocolate tart", writer);
- IndexReader r = writer.getReader();
- writer.close();
-
- IndexSearcher searcher = newSearcher(r);
- MultiPhraseQuery q = new MultiPhraseQuery();
- q.add(new Term("body", "blueberry"));
- q.add(new Term("body", "chocolate"));
- q.add(new Term[] {new Term("body", "pie"), new Term("body", "tart")});
- assertEquals(2, searcher.search(q, 1).totalHits);
- searcher.close();
- r.close();
- indexStore.close();
- }
-
- private void add(String s, RandomIndexWriter writer) throws IOException {
- Document doc = new Document();
- doc.add(newField("body", s, Field.Store.YES, Field.Index.ANALYZED));
- writer.addDocument(doc);
- }
-
- public void testBooleanQueryContainingSingleTermPrefixQuery()
- throws IOException {
- // this tests against bug 33161 (now fixed)
- // In order to cause the bug, the outer query must have more than one term
- // and all terms required.
- // The contained PhraseMultiQuery must contain exactly one term array.
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- add("blueberry pie", writer);
- add("blueberry chewing gum", writer);
- add("blue raspberry pie", writer);
-
- IndexReader reader = writer.getReader();
- IndexSearcher searcher = newSearcher(reader);
- // This query will be equivalent to +body:pie +body:"blue*"
- BooleanQuery q = new BooleanQuery();
- q.add(new TermQuery(new Term("body", "pie")), BooleanClause.Occur.MUST);
-
- MultiPhraseQuery trouble = new MultiPhraseQuery();
- trouble.add(new Term[] {new Term("body", "blueberry"),
- new Term("body", "blue")});
- q.add(trouble, BooleanClause.Occur.MUST);
-
- // exception will be thrown here without fix
- ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
-
- assertEquals("Wrong number of hits", 2, hits.length);
-
- // just make sure no exc:
- searcher.explain(q, 0);
-
- writer.close();
- searcher.close();
- reader.close();
- indexStore.close();
- }
-
- public void testPhrasePrefixWithBooleanQuery() throws IOException {
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- add("This is a test", "object", writer);
- add("a note", "note", writer);
-
- IndexReader reader = writer.getReader();
- IndexSearcher searcher = newSearcher(reader);
-
- // This query will be equivalent to +type:note +body:"a t*"
- BooleanQuery q = new BooleanQuery();
- q.add(new TermQuery(new Term("type", "note")), BooleanClause.Occur.MUST);
-
- MultiPhraseQuery trouble = new MultiPhraseQuery();
- trouble.add(new Term("body", "a"));
- trouble
- .add(new Term[] {new Term("body", "test"), new Term("body", "this")});
- q.add(trouble, BooleanClause.Occur.MUST);
-
- // exception will be thrown here without fix for #35626:
- ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
- assertEquals("Wrong number of hits", 0, hits.length);
- writer.close();
- searcher.close();
- reader.close();
- indexStore.close();
- }
-
- public void testNoDocs() throws Exception {
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- add("a note", "note", writer);
-
- IndexReader reader = writer.getReader();
- IndexSearcher searcher = newSearcher(reader);
-
- MultiPhraseQuery q = new MultiPhraseQuery();
- q.add(new Term("body", "a"));
- q.add(new Term[] {new Term("body", "nope"), new Term("body", "nope")});
- assertEquals("Wrong number of hits", 0,
- searcher.search(q, null, 1).totalHits);
-
- // just make sure no exc:
- searcher.explain(q, 0);
-
- writer.close();
- searcher.close();
- reader.close();
- indexStore.close();
- }
-
- public void testHashCodeAndEquals() {
- MultiPhraseQuery query1 = new MultiPhraseQuery();
- MultiPhraseQuery query2 = new MultiPhraseQuery();
-
- assertEquals(query1.hashCode(), query2.hashCode());
- assertEquals(query1, query2);
-
- Term term1 = new Term("someField", "someText");
-
- query1.add(term1);
- query2.add(term1);
-
- assertEquals(query1.hashCode(), query2.hashCode());
- assertEquals(query1, query2);
-
- Term term2 = new Term("someField", "someMoreText");
-
- query1.add(term2);
-
- assertFalse(query1.hashCode() == query2.hashCode());
- assertFalse(query1.equals(query2));
-
- query2.add(term2);
-
- assertEquals(query1.hashCode(), query2.hashCode());
- assertEquals(query1, query2);
- }
-
- private void add(String s, String type, RandomIndexWriter writer)
- throws IOException {
- Document doc = new Document();
- doc.add(newField("body", s, Field.Store.YES, Field.Index.ANALYZED));
- doc.add(newField("type", type, Field.Store.YES, Field.Index.NOT_ANALYZED));
- writer.addDocument(doc);
- }
-
- // LUCENE-2526
- public void testEmptyToString() {
- new MultiPhraseQuery().toString();
- }
-
- public void testCustomIDF() throws Exception {
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- add("This is a test", "object", writer);
- add("a note", "note", writer);
-
- IndexReader reader = writer.getReader();
- IndexSearcher searcher = newSearcher(reader);
- searcher.setSimilarity(new DefaultSimilarity() {
-
- @Override
- public IDFExplanation idfExplain(Collection<Term> terms,
- Searcher searcher) throws IOException {
- return new IDFExplanation() {
-
- @Override
- public float getIdf() {
- return 10f;
- }
-
- @Override
- public String explain() {
- return "just a test";
- }
-
- };
- }
- });
-
- MultiPhraseQuery query = new MultiPhraseQuery();
- query.add(new Term[] { new Term("body", "this"), new Term("body", "that") });
- query.add(new Term("body", "is"));
- Weight weight = query.createWeight(searcher);
- assertEquals(10f * 10f, weight.sumOfSquaredWeights(), 0.001f);
-
- writer.close();
- searcher.close();
- reader.close();
- indexStore.close();
- }
-
- private static class TokenAndPos {
- public final String token;
- public final int pos;
- public TokenAndPos(String token, int pos) {
- this.token = token;
- this.pos = pos;
- }
- }
-
- private static class CannedAnalyzer extends Analyzer {
- private final TokenAndPos[] tokens;
-
- public CannedAnalyzer(TokenAndPos[] tokens) {
- this.tokens = tokens;
- }
-
- @Override
- public TokenStream tokenStream(String fieldName, Reader reader) {
- return new CannedTokenizer(tokens);
- }
- }
-
- private static class CannedTokenizer extends Tokenizer {
- private final TokenAndPos[] tokens;
- private int upto = 0;
- private int lastPos = 0;
- private final TermAttribute termAtt = addAttribute(TermAttribute.class);
- private final PositionIncrementAttribute posIncrAtt = addAttribute(PositionIncrementAttribute.class);
-
- public CannedTokenizer(TokenAndPos[] tokens) {
- this.tokens = tokens;
- }
-
- @Override
- public final boolean incrementToken() throws IOException {
- clearAttributes();
- if (upto < tokens.length) {
- final TokenAndPos token = tokens[upto++];
- termAtt.setTermBuffer(token.token);
- posIncrAtt.setPositionIncrement(token.pos - lastPos);
- lastPos = token.pos;
- return true;
- } else {
- return false;
- }
- }
- }
-
- public void testZeroPosIncr() throws IOException {
- Directory dir = new RAMDirectory();
- final TokenAndPos[] tokens = new TokenAndPos[3];
- tokens[0] = new TokenAndPos("a", 0);
- tokens[1] = new TokenAndPos("b", 0);
- tokens[2] = new TokenAndPos("c", 0);
-
- IndexWriter writer = new IndexWriter(dir, new CannedAnalyzer(tokens), true, IndexWriter.MaxFieldLength.LIMITED);
- Document doc = new Document();
- doc.add(new Field("field", "", Field.Store.NO, Field.Index.ANALYZED));
- writer.addDocument(doc);
- writer.addDocument(doc);
- IndexReader r = writer.getReader();
- writer.close();
- IndexSearcher s = new IndexSearcher(r);
- MultiPhraseQuery mpq = new MultiPhraseQuery();
- //mpq.setSlop(1);
-
- // NOTE: not great that if we do the else clause here we
- // get different scores! MultiPhraseQuery counts that
- // phrase as occurring twice per doc (it should be 1, I
- // think?). This is because MultipleTermPositions is able to
- // return the same position more than once (0, in this
- // case):
- if (true) {
- mpq.add(new Term[] {new Term("field", "b"), new Term("field", "c")}, 0);
- mpq.add(new Term[] {new Term("field", "a")}, 0);
- } else {
- mpq.add(new Term[] {new Term("field", "a")}, 0);
- mpq.add(new Term[] {new Term("field", "b"), new Term("field", "c")}, 0);
- }
- TopDocs hits = s.search(mpq, 2);
- assertEquals(2, hits.totalHits);
- assertEquals(hits.scoreDocs[0].score, hits.scoreDocs[1].score, 1e-5);
- /*
- for(int hit=0;hit<hits.totalHits;hit++) {
- ScoreDoc sd = hits.scoreDocs[hit];
- System.out.println(" hit doc=" + sd.doc + " score=" + sd.score);
- }
- */
- r.close();
- dir.close();
- }
-
- private final static TokenAndPos[] INCR_0_DOC_TOKENS = new TokenAndPos[] {
- new TokenAndPos("x", 0),
- new TokenAndPos("a", 1),
- new TokenAndPos("1", 1),
- new TokenAndPos("m", 2), // not existing, relying on slop=2
- new TokenAndPos("b", 3),
- new TokenAndPos("1", 3),
- new TokenAndPos("n", 4), // not existing, relying on slop=2
- new TokenAndPos("c", 5),
- new TokenAndPos("y", 6)
- };
-
- private final static TokenAndPos[] INCR_0_QUERY_TOKENS_AND = new TokenAndPos[] {
- new TokenAndPos("a", 0),
- new TokenAndPos("1", 0),
- new TokenAndPos("b", 1),
- new TokenAndPos("1", 1),
- new TokenAndPos("c", 2)
- };
-
- private final static TokenAndPos[][] INCR_0_QUERY_TOKENS_AND_OR_MATCH = new TokenAndPos[][] {
- { new TokenAndPos("a", 0) },
- { new TokenAndPos("x", 0), new TokenAndPos("1", 0) },
- { new TokenAndPos("b", 1) },
- { new TokenAndPos("x", 1), new TokenAndPos("1", 1) },
- { new TokenAndPos("c", 2) }
- };
-
- private final static TokenAndPos[][] INCR_0_QUERY_TOKENS_AND_OR_NO_MATCHN = new TokenAndPos[][] {
- { new TokenAndPos("x", 0) },
- { new TokenAndPos("a", 0), new TokenAndPos("1", 0) },
- { new TokenAndPos("x", 1) },
- { new TokenAndPos("b", 1), new TokenAndPos("1", 1) },
- { new TokenAndPos("c", 2) }
- };
-
- /**
- * using query parser, MPQ will be created, and will not be strict about having all query terms
- * in each position - one of each position is sufficient (OR logic)
- */
- public void testZeroPosIncrSloppyParsedAnd() throws IOException, ParseException {
- QueryParser qp = new QueryParser(TEST_VERSION_CURRENT, "field", new CannedAnalyzer(INCR_0_QUERY_TOKENS_AND));
- final Query q = qp.parse("\"this text is acually ignored\"");
- assertTrue("wrong query type!", q instanceof MultiPhraseQuery);
- doTestZeroPosIncrSloppy(q, 0);
- ((MultiPhraseQuery) q).setSlop(1);
- doTestZeroPosIncrSloppy(q, 0);
- ((MultiPhraseQuery) q).setSlop(2);
- doTestZeroPosIncrSloppy(q, 1);
- }
-
- private void doTestZeroPosIncrSloppy(Query q, int nExpected) throws IOException {
- Directory dir = newDirectory(); // random dir
- IndexWriterConfig cfg = newIndexWriterConfig(TEST_VERSION_CURRENT, new CannedAnalyzer(INCR_0_DOC_TOKENS));
- IndexWriter writer = new IndexWriter(dir, cfg);
- Document doc = new Document();
- doc.add(new Field("field", "", Field.Store.NO, Field.Index.ANALYZED));
- writer.addDocument(doc);
- IndexReader r = IndexReader.open(writer,false);
- writer.close();
- IndexSearcher s = new IndexSearcher(r);
-
- if (VERBOSE) {
- System.out.println("QUERY=" + q);
- }
-
- TopDocs hits = s.search(q, 1);
- assertEquals("wrong number of results", nExpected, hits.totalHits);
-
- if (VERBOSE) {
- for(int hit=0;hit<hits.totalHits;hit++) {
- ScoreDoc sd = hits.scoreDocs[hit];
- System.out.println(" hit doc=" + sd.doc + " score=" + sd.score);
- }
- }
-
- r.close();
- dir.close();
- }
-
- /**
- * PQ AND Mode - Manually creating a phrase query
- */
- public void testZeroPosIncrSloppyPqAnd() throws IOException, ParseException {
- final PhraseQuery pq = new PhraseQuery();
- for (TokenAndPos tap : INCR_0_QUERY_TOKENS_AND) {
- pq.add(new Term("field",tap.token), tap.pos);
- }
- doTestZeroPosIncrSloppy(pq, 0);
- pq.setSlop(1);
- doTestZeroPosIncrSloppy(pq, 0);
- pq.setSlop(2);
- doTestZeroPosIncrSloppy(pq, 1);
- }
-
- /**
- * MPQ AND Mode - Manually creating a multiple phrase query
- */
- public void testZeroPosIncrSloppyMpqAnd() throws IOException, ParseException {
- final MultiPhraseQuery mpq = new MultiPhraseQuery();
- for (TokenAndPos tap : INCR_0_QUERY_TOKENS_AND) {
- mpq.add(new Term[]{new Term("field",tap.token)}, tap.pos); //AND logic
- }
- doTestZeroPosIncrSloppy(mpq, 0);
- mpq.setSlop(1);
- doTestZeroPosIncrSloppy(mpq, 0);
- mpq.setSlop(2);
- doTestZeroPosIncrSloppy(mpq, 1);
- }
-
- /**
- * MPQ Combined AND OR Mode - Manually creating a multiple phrase query
- */
- public void testZeroPosIncrSloppyMpqAndOrMatch() throws IOException, ParseException {
- final MultiPhraseQuery mpq = new MultiPhraseQuery();
- for (TokenAndPos tap[] : INCR_0_QUERY_TOKENS_AND_OR_MATCH) {
- Term[] terms = tapTerms(tap);
- final int pos = tap[0].pos;
- mpq.add(terms, pos); //AND logic in pos, OR across lines
- }
- doTestZeroPosIncrSloppy(mpq, 0);
- mpq.setSlop(1);
- doTestZeroPosIncrSloppy(mpq, 0);
- mpq.setSlop(2);
- doTestZeroPosIncrSloppy(mpq, 1);
- }
-
- /**
- * MPQ Combined AND OR Mode - Manually creating a multiple phrase query - with no match
- */
- public void testZeroPosIncrSloppyMpqAndOrNoMatch() throws IOException, ParseException {
- final MultiPhraseQuery mpq = new MultiPhraseQuery();
- for (TokenAndPos tap[] : INCR_0_QUERY_TOKENS_AND_OR_NO_MATCHN) {
- Term[] terms = tapTerms(tap);
- final int pos = tap[0].pos;
- mpq.add(terms, pos); //AND logic in pos, OR across lines
- }
- doTestZeroPosIncrSloppy(mpq, 0);
- mpq.setSlop(2);
- doTestZeroPosIncrSloppy(mpq, 0);
- }
-
- private Term[] tapTerms(TokenAndPos[] tap) {
- Term[] terms = new Term[tap.length];
- for (int i=0; i<terms.length; i++) {
- terms[i] = new Term("field",tap[i].token);
- }
- return terms;
- }
-
-}
-
fnp / pylucene.git / blobdiff