+++ /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.store.Directory;
-import org.apache.lucene.util.LuceneTestCase;
-import org.apache.lucene.analysis.MockAnalyzer;
-import org.apache.lucene.document.Document;
-import org.apache.lucene.document.Field;
-import org.apache.lucene.document.Field.Store;
-import org.apache.lucene.document.Field.Index;
-import org.apache.lucene.index.RandomIndexWriter;
-import org.apache.lucene.index.Term;
-import org.apache.lucene.queryParser.QueryParser;
-
-import java.io.IOException;
-
-/**
- * TestWildcard tests the '*' and '?' wildcard characters.
- */
-public class TestWildcard
- extends LuceneTestCase {
-
- @Override
- public void setUp() throws Exception {
- super.setUp();
- }
-
- public void testEquals() {
- WildcardQuery wq1 = new WildcardQuery(new Term("field", "b*a"));
- WildcardQuery wq2 = new WildcardQuery(new Term("field", "b*a"));
- WildcardQuery wq3 = new WildcardQuery(new Term("field", "b*a"));
-
- // reflexive?
- assertEquals(wq1, wq2);
- assertEquals(wq2, wq1);
-
- // transitive?
- assertEquals(wq2, wq3);
- assertEquals(wq1, wq3);
-
- assertFalse(wq1.equals(null));
-
- FuzzyQuery fq = new FuzzyQuery(new Term("field", "b*a"));
- assertFalse(wq1.equals(fq));
- assertFalse(fq.equals(wq1));
- }
-
- /**
- * Tests if a WildcardQuery that has no wildcard in the term is rewritten to a single
- * TermQuery. The boost should be preserved, and the rewrite should return
- * a ConstantScoreQuery if the WildcardQuery had a ConstantScore rewriteMethod.
- */
- public void testTermWithoutWildcard() throws IOException {
- Directory indexStore = getIndexStore("field", new String[]{"nowildcard", "nowildcardx"});
- IndexSearcher searcher = new IndexSearcher(indexStore, true);
-
- MultiTermQuery wq = new WildcardQuery(new Term("field", "nowildcard"));
- assertMatches(searcher, wq, 1);
-
- wq.setRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE);
- wq.setBoost(0.1F);
- Query q = searcher.rewrite(wq);
- assertTrue(q instanceof TermQuery);
- assertEquals(q.getBoost(), wq.getBoost());
-
- wq.setRewriteMethod(MultiTermQuery.CONSTANT_SCORE_FILTER_REWRITE);
- wq.setBoost(0.2F);
- q = searcher.rewrite(wq);
- assertTrue(q instanceof ConstantScoreQuery);
- assertEquals(q.getBoost(), wq.getBoost());
-
- wq.setRewriteMethod(MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT);
- wq.setBoost(0.3F);
- q = searcher.rewrite(wq);
- assertTrue(q instanceof ConstantScoreQuery);
- assertEquals(q.getBoost(), wq.getBoost());
-
- wq.setRewriteMethod(MultiTermQuery.CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE);
- wq.setBoost(0.4F);
- q = searcher.rewrite(wq);
- assertTrue(q instanceof ConstantScoreQuery);
- assertEquals(q.getBoost(), wq.getBoost());
- searcher.close();
- indexStore.close();
- }
-
- /**
- * Tests if a WildcardQuery with an empty term is rewritten to an empty BooleanQuery
- */
- public void testEmptyTerm() throws IOException {
- Directory indexStore = getIndexStore("field", new String[]{"nowildcard", "nowildcardx"});
- IndexSearcher searcher = new IndexSearcher(indexStore, true);
-
- MultiTermQuery wq = new WildcardQuery(new Term("field", ""));
- wq.setRewriteMethod(MultiTermQuery.SCORING_BOOLEAN_QUERY_REWRITE);
- assertMatches(searcher, wq, 0);
- Query q = searcher.rewrite(wq);
- assertTrue(q instanceof BooleanQuery);
- assertEquals(0, ((BooleanQuery) q).clauses().size());
- searcher.close();
- indexStore.close();
- }
-
- /**
- * Tests if a WildcardQuery that has only a trailing * in the term is
- * rewritten to a single PrefixQuery. The boost and rewriteMethod should be
- * preserved.
- */
- public void testPrefixTerm() throws IOException {
- Directory indexStore = getIndexStore("field", new String[]{"prefix", "prefixx"});
- IndexSearcher searcher = new IndexSearcher(indexStore, true);
-
- MultiTermQuery wq = new WildcardQuery(new Term("field", "prefix*"));
- assertMatches(searcher, wq, 2);
- assertTrue(wq.getEnum(searcher.getIndexReader()) instanceof PrefixTermEnum);
-
- searcher.close();
- indexStore.close();
- }
-
- /**
- * Tests Wildcard queries with an asterisk.
- */
- public void testAsterisk()
- throws IOException {
- Directory indexStore = getIndexStore("body", new String[]
- {"metal", "metals"});
- IndexSearcher searcher = new IndexSearcher(indexStore, true);
- Query query1 = new TermQuery(new Term("body", "metal"));
- Query query2 = new WildcardQuery(new Term("body", "metal*"));
- Query query3 = new WildcardQuery(new Term("body", "m*tal"));
- Query query4 = new WildcardQuery(new Term("body", "m*tal*"));
- Query query5 = new WildcardQuery(new Term("body", "m*tals"));
-
- BooleanQuery query6 = new BooleanQuery();
- query6.add(query5, BooleanClause.Occur.SHOULD);
-
- BooleanQuery query7 = new BooleanQuery();
- query7.add(query3, BooleanClause.Occur.SHOULD);
- query7.add(query5, BooleanClause.Occur.SHOULD);
-
- // Queries do not automatically lower-case search terms:
- Query query8 = new WildcardQuery(new Term("body", "M*tal*"));
-
- assertMatches(searcher, query1, 1);
- assertMatches(searcher, query2, 2);
- assertMatches(searcher, query3, 1);
- assertMatches(searcher, query4, 2);
- assertMatches(searcher, query5, 1);
- assertMatches(searcher, query6, 1);
- assertMatches(searcher, query7, 2);
- assertMatches(searcher, query8, 0);
- assertMatches(searcher, new WildcardQuery(new Term("body", "*tall")), 0);
- assertMatches(searcher, new WildcardQuery(new Term("body", "*tal")), 1);
- assertMatches(searcher, new WildcardQuery(new Term("body", "*tal*")), 2);
- searcher.close();
- indexStore.close();
- }
-
- /**
- * LUCENE-2620
- */
- public void testLotsOfAsterisks()
- throws IOException {
- Directory indexStore = getIndexStore("body", new String[]
- {"metal", "metals"});
- IndexSearcher searcher = new IndexSearcher(indexStore, true);
- StringBuilder term = new StringBuilder();
- term.append("m");
- for (int i = 0; i < 512; i++)
- term.append("*");
- term.append("tal");
- Query query3 = new WildcardQuery(new Term("body", term.toString()));
-
- assertMatches(searcher, query3, 1);
- searcher.close();
- indexStore.close();
- }
-
- /**
- * Tests Wildcard queries with a question mark.
- *
- * @throws IOException if an error occurs
- */
- public void testQuestionmark()
- throws IOException {
- Directory indexStore = getIndexStore("body", new String[]
- {"metal", "metals", "mXtals", "mXtXls"});
- IndexSearcher searcher = new IndexSearcher(indexStore, true);
- Query query1 = new WildcardQuery(new Term("body", "m?tal"));
- Query query2 = new WildcardQuery(new Term("body", "metal?"));
- Query query3 = new WildcardQuery(new Term("body", "metals?"));
- Query query4 = new WildcardQuery(new Term("body", "m?t?ls"));
- Query query5 = new WildcardQuery(new Term("body", "M?t?ls"));
- Query query6 = new WildcardQuery(new Term("body", "meta??"));
-
- assertMatches(searcher, query1, 1);
- assertMatches(searcher, query2, 1);
- assertMatches(searcher, query3, 0);
- assertMatches(searcher, query4, 3);
- assertMatches(searcher, query5, 0);
- assertMatches(searcher, query6, 1); // Query: 'meta??' matches 'metals' not 'metal'
- searcher.close();
- indexStore.close();
- }
-
- private Directory getIndexStore(String field, String[] contents)
- throws IOException {
- Directory indexStore = newDirectory();
- RandomIndexWriter writer = new RandomIndexWriter(random, indexStore);
- for (int i = 0; i < contents.length; ++i) {
- Document doc = new Document();
- doc.add(newField(field, contents[i], Field.Store.YES, Field.Index.ANALYZED));
- writer.addDocument(doc);
- }
- writer.close();
-
- return indexStore;
- }
-
- private void assertMatches(IndexSearcher searcher, Query q, int expectedMatches)
- throws IOException {
- ScoreDoc[] result = searcher.search(q, null, 1000).scoreDocs;
- assertEquals(expectedMatches, result.length);
- }
-
- /**
- * Test that wild card queries are parsed to the correct type and are searched correctly.
- * This test looks at both parsing and execution of wildcard queries.
- * Although placed here, it also tests prefix queries, verifying that
- * prefix queries are not parsed into wild card queries, and viceversa.
- * @throws Exception
- */
- public void testParsingAndSearching() throws Exception {
- String field = "content";
- QueryParser qp = new QueryParser(TEST_VERSION_CURRENT, field, new MockAnalyzer(random));
- qp.setAllowLeadingWildcard(true);
- String docs[] = {
- "\\ abcdefg1",
- "\\79 hijklmn1",
- "\\\\ opqrstu1",
- };
- // queries that should find all docs
- String matchAll[] = {
- "*", "*1", "**1", "*?", "*?1", "?*1", "**", "***", "\\\\*"
- };
- // queries that should find no docs
- String matchNone[] = {
- "a*h", "a?h", "*a*h", "?a", "a?",
- };
- // queries that should be parsed to prefix queries
- String matchOneDocPrefix[][] = {
- {"a*", "ab*", "abc*", }, // these should find only doc 0
- {"h*", "hi*", "hij*", "\\\\7*"}, // these should find only doc 1
- {"o*", "op*", "opq*", "\\\\\\\\*"}, // these should find only doc 2
- };
- // queries that should be parsed to wildcard queries
- String matchOneDocWild[][] = {
- {"*a*", "*ab*", "*abc**", "ab*e*", "*g?", "*f?1", "abc**"}, // these should find only doc 0
- {"*h*", "*hi*", "*hij**", "hi*k*", "*n?", "*m?1", "hij**"}, // these should find only doc 1
- {"*o*", "*op*", "*opq**", "op*q*", "*u?", "*t?1", "opq**"}, // these should find only doc 2
- };
-
- // prepare the index
- Directory dir = newDirectory();
- RandomIndexWriter iw = new RandomIndexWriter(random, dir,
- newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random))
- .setMergePolicy(newLogMergePolicy()));
- for (int i = 0; i < docs.length; i++) {
- Document doc = new Document();
- doc.add(newField(field,docs[i],Store.NO,Index.ANALYZED));
- iw.addDocument(doc);
- }
- iw.close();
-
- IndexSearcher searcher = new IndexSearcher(dir, true);
-
- // test queries that must find all
- for (int i = 0; i < matchAll.length; i++) {
- String qtxt = matchAll[i];
- Query q = qp.parse(qtxt);
- if (VERBOSE) System.out.println("matchAll: qtxt="+qtxt+" q="+q+" "+q.getClass().getName());
- ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
- assertEquals(docs.length,hits.length);
- }
-
- // test queries that must find none
- for (int i = 0; i < matchNone.length; i++) {
- String qtxt = matchNone[i];
- Query q = qp.parse(qtxt);
- if (VERBOSE) System.out.println("matchNone: qtxt="+qtxt+" q="+q+" "+q.getClass().getName());
- ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
- assertEquals(0,hits.length);
- }
-
- // test queries that must be prefix queries and must find only one doc
- for (int i = 0; i < matchOneDocPrefix.length; i++) {
- for (int j = 0; j < matchOneDocPrefix[i].length; j++) {
- String qtxt = matchOneDocPrefix[i][j];
- Query q = qp.parse(qtxt);
- if (VERBOSE) System.out.println("match 1 prefix: doc="+docs[i]+" qtxt="+qtxt+" q="+q+" "+q.getClass().getName());
- assertEquals(PrefixQuery.class, q.getClass());
- ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
- assertEquals(1,hits.length);
- assertEquals(i,hits[0].doc);
- }
- }
-
- // test queries that must be wildcard queries and must find only one doc
- for (int i = 0; i < matchOneDocPrefix.length; i++) {
- for (int j = 0; j < matchOneDocWild[i].length; j++) {
- String qtxt = matchOneDocWild[i][j];
- Query q = qp.parse(qtxt);
- if (VERBOSE) System.out.println("match 1 wild: doc="+docs[i]+" qtxt="+qtxt+" q="+q+" "+q.getClass().getName());
- assertEquals(WildcardQuery.class, q.getClass());
- ScoreDoc[] hits = searcher.search(q, null, 1000).scoreDocs;
- assertEquals(1,hits.length);
- assertEquals(i,hits[0].doc);
- }
- }
-
- searcher.close();
- dir.close();
- }
-
-}
fnp / pylucene.git / blobdiff