| package org.apache.lucene.queryParser; |
| |
| /** |
| * 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 java.io.IOException; |
| import java.io.Reader; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.MockAnalyzer; |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.standard.StandardAnalyzer; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.index.IndexWriter; |
| import org.apache.lucene.search.BooleanClause; |
| import org.apache.lucene.search.IndexSearcher; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.ScoreDoc; |
| import org.apache.lucene.search.BooleanClause.Occur; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| /** |
| * Tests QueryParser. |
| */ |
| public class TestMultiFieldQueryParser extends LuceneTestCase { |
| |
| /** test stop words parsing for both the non static form, and for the |
| * corresponding static form (qtxt, fields[]). */ |
| public void testStopwordsParsing() throws Exception { |
| assertStopQueryEquals("one", "b:one t:one"); |
| assertStopQueryEquals("one stop", "b:one t:one"); |
| assertStopQueryEquals("one (stop)", "b:one t:one"); |
| assertStopQueryEquals("one ((stop))", "b:one t:one"); |
| assertStopQueryEquals("stop", ""); |
| assertStopQueryEquals("(stop)", ""); |
| assertStopQueryEquals("((stop))", ""); |
| } |
| |
| // verify parsing of query using a stopping analyzer |
| private void assertStopQueryEquals (String qtxt, String expectedRes) throws Exception { |
| String[] fields = {"b", "t"}; |
| Occur occur[] = {Occur.SHOULD, Occur.SHOULD}; |
| TestQueryParser.QPTestAnalyzer a = new TestQueryParser.QPTestAnalyzer(); |
| MultiFieldQueryParser mfqp = new MultiFieldQueryParser(TEST_VERSION_CURRENT, fields, a); |
| |
| Query q = mfqp.parse(qtxt); |
| assertEquals(expectedRes, q.toString()); |
| |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, qtxt, fields, occur, a); |
| assertEquals(expectedRes, q.toString()); |
| } |
| |
| public void testSimple() throws Exception { |
| String[] fields = {"b", "t"}; |
| MultiFieldQueryParser mfqp = new MultiFieldQueryParser(TEST_VERSION_CURRENT, fields, new MockAnalyzer(random)); |
| |
| Query q = mfqp.parse("one"); |
| assertEquals("b:one t:one", q.toString()); |
| |
| q = mfqp.parse("one two"); |
| assertEquals("(b:one t:one) (b:two t:two)", q.toString()); |
| |
| q = mfqp.parse("+one +two"); |
| assertEquals("+(b:one t:one) +(b:two t:two)", q.toString()); |
| |
| q = mfqp.parse("+one -two -three"); |
| assertEquals("+(b:one t:one) -(b:two t:two) -(b:three t:three)", q.toString()); |
| |
| q = mfqp.parse("one^2 two"); |
| assertEquals("((b:one t:one)^2.0) (b:two t:two)", q.toString()); |
| |
| q = mfqp.parse("one~ two"); |
| assertEquals("(b:one~0.5 t:one~0.5) (b:two t:two)", q.toString()); |
| |
| q = mfqp.parse("one~0.8 two^2"); |
| assertEquals("(b:one~0.8 t:one~0.8) ((b:two t:two)^2.0)", q.toString()); |
| |
| q = mfqp.parse("one* two*"); |
| assertEquals("(b:one* t:one*) (b:two* t:two*)", q.toString()); |
| |
| q = mfqp.parse("[a TO c] two"); |
| assertEquals("(b:[a TO c] t:[a TO c]) (b:two t:two)", q.toString()); |
| |
| q = mfqp.parse("w?ldcard"); |
| assertEquals("b:w?ldcard t:w?ldcard", q.toString()); |
| |
| q = mfqp.parse("\"foo bar\""); |
| assertEquals("b:\"foo bar\" t:\"foo bar\"", q.toString()); |
| |
| q = mfqp.parse("\"aa bb cc\" \"dd ee\""); |
| assertEquals("(b:\"aa bb cc\" t:\"aa bb cc\") (b:\"dd ee\" t:\"dd ee\")", q.toString()); |
| |
| q = mfqp.parse("\"foo bar\"~4"); |
| assertEquals("b:\"foo bar\"~4 t:\"foo bar\"~4", q.toString()); |
| |
| // LUCENE-1213: MultiFieldQueryParser was ignoring slop when phrase had a field. |
| q = mfqp.parse("b:\"foo bar\"~4"); |
| assertEquals("b:\"foo bar\"~4", q.toString()); |
| |
| // make sure that terms which have a field are not touched: |
| q = mfqp.parse("one f:two"); |
| assertEquals("(b:one t:one) f:two", q.toString()); |
| |
| // AND mode: |
| mfqp.setDefaultOperator(QueryParser.AND_OPERATOR); |
| q = mfqp.parse("one two"); |
| assertEquals("+(b:one t:one) +(b:two t:two)", q.toString()); |
| q = mfqp.parse("\"aa bb cc\" \"dd ee\""); |
| assertEquals("+(b:\"aa bb cc\" t:\"aa bb cc\") +(b:\"dd ee\" t:\"dd ee\")", q.toString()); |
| |
| } |
| |
| public void testBoostsSimple() throws Exception { |
| Map<String,Float> boosts = new HashMap<String,Float>(); |
| boosts.put("b", Float.valueOf(5)); |
| boosts.put("t", Float.valueOf(10)); |
| String[] fields = {"b", "t"}; |
| MultiFieldQueryParser mfqp = new MultiFieldQueryParser(TEST_VERSION_CURRENT, fields, new MockAnalyzer(random), boosts); |
| |
| |
| //Check for simple |
| Query q = mfqp.parse("one"); |
| assertEquals("b:one^5.0 t:one^10.0", q.toString()); |
| |
| //Check for AND |
| q = mfqp.parse("one AND two"); |
| assertEquals("+(b:one^5.0 t:one^10.0) +(b:two^5.0 t:two^10.0)", q.toString()); |
| |
| //Check for OR |
| q = mfqp.parse("one OR two"); |
| assertEquals("(b:one^5.0 t:one^10.0) (b:two^5.0 t:two^10.0)", q.toString()); |
| |
| //Check for AND and a field |
| q = mfqp.parse("one AND two AND foo:test"); |
| assertEquals("+(b:one^5.0 t:one^10.0) +(b:two^5.0 t:two^10.0) +foo:test", q.toString()); |
| |
| q = mfqp.parse("one^3 AND two^4"); |
| assertEquals("+((b:one^5.0 t:one^10.0)^3.0) +((b:two^5.0 t:two^10.0)^4.0)", q.toString()); |
| } |
| |
| public void testStaticMethod1() throws ParseException { |
| String[] fields = {"b", "t"}; |
| String[] queries = {"one", "two"}; |
| Query q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries, fields, new MockAnalyzer(random)); |
| assertEquals("b:one t:two", q.toString()); |
| |
| String[] queries2 = {"+one", "+two"}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries2, fields, new MockAnalyzer(random)); |
| assertEquals("(+b:one) (+t:two)", q.toString()); |
| |
| String[] queries3 = {"one", "+two"}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries3, fields, new MockAnalyzer(random)); |
| assertEquals("b:one (+t:two)", q.toString()); |
| |
| String[] queries4 = {"one +more", "+two"}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries4, fields, new MockAnalyzer(random)); |
| assertEquals("(b:one +b:more) (+t:two)", q.toString()); |
| |
| String[] queries5 = {"blah"}; |
| try { |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries5, fields, new MockAnalyzer(random)); |
| fail(); |
| } catch(IllegalArgumentException e) { |
| // expected exception, array length differs |
| } |
| |
| // check also with stop words for this static form (qtxts[], fields[]). |
| TestQueryParser.QPTestAnalyzer stopA = new TestQueryParser.QPTestAnalyzer(); |
| |
| String[] queries6 = {"((+stop))", "+((stop))"}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries6, fields, stopA); |
| assertEquals("", q.toString()); |
| |
| String[] queries7 = {"one ((+stop)) +more", "+((stop)) +two"}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries7, fields, stopA); |
| assertEquals("(b:one +b:more) (+t:two)", q.toString()); |
| |
| } |
| |
| public void testStaticMethod2() throws ParseException { |
| String[] fields = {"b", "t"}; |
| BooleanClause.Occur[] flags = {BooleanClause.Occur.MUST, BooleanClause.Occur.MUST_NOT}; |
| Query q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, "one", fields, flags, new MockAnalyzer(random)); |
| assertEquals("+b:one -t:one", q.toString()); |
| |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, "one two", fields, flags, new MockAnalyzer(random)); |
| assertEquals("+(b:one b:two) -(t:one t:two)", q.toString()); |
| |
| try { |
| BooleanClause.Occur[] flags2 = {BooleanClause.Occur.MUST}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, "blah", fields, flags2, new MockAnalyzer(random)); |
| fail(); |
| } catch(IllegalArgumentException e) { |
| // expected exception, array length differs |
| } |
| } |
| |
| public void testStaticMethod2Old() throws ParseException { |
| String[] fields = {"b", "t"}; |
| //int[] flags = {MultiFieldQueryParser.REQUIRED_FIELD, MultiFieldQueryParser.PROHIBITED_FIELD}; |
| BooleanClause.Occur[] flags = {BooleanClause.Occur.MUST, BooleanClause.Occur.MUST_NOT}; |
| |
| Query q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, "one", fields, flags, new MockAnalyzer(random));//, fields, flags, new MockAnalyzer(random)); |
| assertEquals("+b:one -t:one", q.toString()); |
| |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, "one two", fields, flags, new MockAnalyzer(random)); |
| assertEquals("+(b:one b:two) -(t:one t:two)", q.toString()); |
| |
| try { |
| BooleanClause.Occur[] flags2 = {BooleanClause.Occur.MUST}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, "blah", fields, flags2, new MockAnalyzer(random)); |
| fail(); |
| } catch(IllegalArgumentException e) { |
| // expected exception, array length differs |
| } |
| } |
| |
| public void testStaticMethod3() throws ParseException { |
| String[] queries = {"one", "two", "three"}; |
| String[] fields = {"f1", "f2", "f3"}; |
| BooleanClause.Occur[] flags = {BooleanClause.Occur.MUST, |
| BooleanClause.Occur.MUST_NOT, BooleanClause.Occur.SHOULD}; |
| Query q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries, fields, flags, new MockAnalyzer(random)); |
| assertEquals("+f1:one -f2:two f3:three", q.toString()); |
| |
| try { |
| BooleanClause.Occur[] flags2 = {BooleanClause.Occur.MUST}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries, fields, flags2, new MockAnalyzer(random)); |
| fail(); |
| } catch(IllegalArgumentException e) { |
| // expected exception, array length differs |
| } |
| } |
| |
| public void testStaticMethod3Old() throws ParseException { |
| String[] queries = {"one", "two"}; |
| String[] fields = {"b", "t"}; |
| BooleanClause.Occur[] flags = {BooleanClause.Occur.MUST, BooleanClause.Occur.MUST_NOT}; |
| Query q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries, fields, flags, new MockAnalyzer(random)); |
| assertEquals("+b:one -t:two", q.toString()); |
| |
| try { |
| BooleanClause.Occur[] flags2 = {BooleanClause.Occur.MUST}; |
| q = MultiFieldQueryParser.parse(TEST_VERSION_CURRENT, queries, fields, flags2, new MockAnalyzer(random)); |
| fail(); |
| } catch(IllegalArgumentException e) { |
| // expected exception, array length differs |
| } |
| } |
| |
| public void testAnalyzerReturningNull() throws ParseException { |
| String[] fields = new String[] { "f1", "f2", "f3" }; |
| MultiFieldQueryParser parser = new MultiFieldQueryParser(TEST_VERSION_CURRENT, fields, new AnalyzerReturningNull()); |
| Query q = parser.parse("bla AND blo"); |
| assertEquals("+(f2:bla f3:bla) +(f2:blo f3:blo)", q.toString()); |
| // the following queries are not affected as their terms are not analyzed anyway: |
| q = parser.parse("bla*"); |
| assertEquals("f1:bla* f2:bla* f3:bla*", q.toString()); |
| q = parser.parse("bla~"); |
| assertEquals("f1:bla~0.5 f2:bla~0.5 f3:bla~0.5", q.toString()); |
| q = parser.parse("[a TO c]"); |
| assertEquals("f1:[a TO c] f2:[a TO c] f3:[a TO c]", q.toString()); |
| } |
| |
| public void testStopWordSearching() throws Exception { |
| Analyzer analyzer = new MockAnalyzer(random); |
| Directory ramDir = newDirectory(); |
| IndexWriter iw = new IndexWriter(ramDir, newIndexWriterConfig(TEST_VERSION_CURRENT, analyzer)); |
| Document doc = new Document(); |
| doc.add(newField("body", "blah the footest blah", Field.Store.NO, Field.Index.ANALYZED)); |
| iw.addDocument(doc); |
| iw.close(); |
| |
| MultiFieldQueryParser mfqp = |
| new MultiFieldQueryParser(TEST_VERSION_CURRENT, new String[] {"body"}, analyzer); |
| mfqp.setDefaultOperator(QueryParser.Operator.AND); |
| Query q = mfqp.parse("the footest"); |
| IndexSearcher is = new IndexSearcher(ramDir, true); |
| ScoreDoc[] hits = is.search(q, null, 1000).scoreDocs; |
| assertEquals(1, hits.length); |
| is.close(); |
| ramDir.close(); |
| } |
| |
| /** |
| * Return empty tokens for field "f1". |
| */ |
| private static class AnalyzerReturningNull extends Analyzer { |
| MockAnalyzer stdAnalyzer = new MockAnalyzer(random); |
| |
| public AnalyzerReturningNull() { |
| } |
| |
| @Override |
| public TokenStream tokenStream(String fieldName, Reader reader) { |
| if ("f1".equals(fieldName)) { |
| return new EmptyTokenStream(); |
| } else { |
| return stdAnalyzer.tokenStream(fieldName, reader); |
| } |
| } |
| |
| private static class EmptyTokenStream extends TokenStream { |
| @Override |
| public boolean incrementToken() throws IOException { |
| return false; |
| } |
| } |
| } |
| |
| } |