+++ /dev/null
-package org.apache.lucene.queryParser.standard;
-
-/**
- * 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 org.apache.lucene.analysis.Analyzer;
-import org.apache.lucene.analysis.LowerCaseFilter;
-import org.apache.lucene.analysis.TokenFilter;
-import org.apache.lucene.analysis.TokenStream;
-import org.apache.lucene.analysis.standard.StandardTokenizer;
-import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
-import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
-import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
-import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
-import org.apache.lucene.queryParser.core.QueryNodeException;
-import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler;
-import org.apache.lucene.util.LuceneTestCase;
-
-/**
- * This test case is a copy of the core Lucene query parser test, it was adapted
- * to use new QueryParserHelper instead of the old query parser.
- *
- * Test QueryParser's ability to deal with Analyzers that return more than one
- * token per position or that return tokens with a position increment > 1.
- */
-public class TestMultiAnalyzerQPHelper extends LuceneTestCase {
-
- private static int multiToken = 0;
-
- @SuppressWarnings("deprecation")
- public void testMultiAnalyzer() throws QueryNodeException {
-
- StandardQueryParser qp = new StandardQueryParser();
- qp.setAnalyzer(new MultiAnalyzer());
-
- // trivial, no multiple tokens:
- assertEquals("foo", qp.parse("foo", "").toString());
- assertEquals("foo", qp.parse("\"foo\"", "").toString());
- assertEquals("foo foobar", qp.parse("foo foobar", "").toString());
- assertEquals("\"foo foobar\"", qp.parse("\"foo foobar\"", "").toString());
- assertEquals("\"foo foobar blah\"", qp.parse("\"foo foobar blah\"", "")
- .toString());
-
- // two tokens at the same position:
- assertEquals("(multi multi2) foo", qp.parse("multi foo", "").toString());
- assertEquals("foo (multi multi2)", qp.parse("foo multi", "").toString());
- assertEquals("(multi multi2) (multi multi2)", qp.parse("multi multi", "")
- .toString());
- assertEquals("+(foo (multi multi2)) +(bar (multi multi2))", qp.parse(
- "+(foo multi) +(bar multi)", "").toString());
- assertEquals("+(foo (multi multi2)) field:\"bar (multi multi2)\"", qp
- .parse("+(foo multi) field:\"bar multi\"", "").toString());
-
- // phrases:
- assertEquals("\"(multi multi2) foo\"", qp.parse("\"multi foo\"", "")
- .toString());
- assertEquals("\"foo (multi multi2)\"", qp.parse("\"foo multi\"", "")
- .toString());
- assertEquals("\"foo (multi multi2) foobar (multi multi2)\"", qp.parse(
- "\"foo multi foobar multi\"", "").toString());
-
- // fields:
- assertEquals("(field:multi field:multi2) field:foo", qp.parse(
- "field:multi field:foo", "").toString());
- assertEquals("field:\"(multi multi2) foo\"", qp.parse(
- "field:\"multi foo\"", "").toString());
-
- // three tokens at one position:
- assertEquals("triplemulti multi3 multi2", qp.parse("triplemulti", "")
- .toString());
- assertEquals("foo (triplemulti multi3 multi2) foobar", qp.parse(
- "foo triplemulti foobar", "").toString());
-
- // phrase with non-default slop:
- assertEquals("\"(multi multi2) foo\"~10", qp.parse("\"multi foo\"~10", "")
- .toString());
-
- // phrase with non-default boost:
- assertEquals("\"(multi multi2) foo\"^2.0", qp.parse("\"multi foo\"^2", "")
- .toString());
-
- // phrase after changing default slop
- qp.setDefaultPhraseSlop(99);
- assertEquals("\"(multi multi2) foo\"~99 bar", qp.parse("\"multi foo\" bar",
- "").toString());
- assertEquals("\"(multi multi2) foo\"~99 \"foo bar\"~2", qp.parse(
- "\"multi foo\" \"foo bar\"~2", "").toString());
- qp.setDefaultPhraseSlop(0);
-
- // non-default operator:
- qp.setDefaultOperator(StandardQueryConfigHandler.Operator.AND);
- assertEquals("+(multi multi2) +foo", qp.parse("multi foo", "").toString());
-
- }
-
- // public void testMultiAnalyzerWithSubclassOfQueryParser() throws
- // ParseException {
- // this test doesn't make sense when using the new QueryParser API
- // DumbQueryParser qp = new DumbQueryParser("", new MultiAnalyzer());
- // qp.setPhraseSlop(99); // modified default slop
- //
- // // direct call to (super's) getFieldQuery to demonstrate differnce
- // // between phrase and multiphrase with modified default slop
- // assertEquals("\"foo bar\"~99",
- // qp.getSuperFieldQuery("","foo bar").toString());
- // assertEquals("\"(multi multi2) bar\"~99",
- // qp.getSuperFieldQuery("","multi bar").toString());
- //
- //
- // // ask sublcass to parse phrase with modified default slop
- // assertEquals("\"(multi multi2) foo\"~99 bar",
- // qp.parse("\"multi foo\" bar").toString());
- //
- // }
-
- public void testPosIncrementAnalyzer() throws QueryNodeException {
- StandardQueryParser qp = new StandardQueryParser();
- qp.setAnalyzer(new PosIncrementAnalyzer());
-
- assertEquals("quick brown", qp.parse("the quick brown", "").toString());
- assertEquals("\"quick brown\"", qp.parse("\"the quick brown\"", "")
- .toString());
- assertEquals("quick brown fox", qp.parse("the quick brown fox", "")
- .toString());
- assertEquals("\"quick brown fox\"", qp.parse("\"the quick brown fox\"", "")
- .toString());
- }
-
- /**
- * Expands "multi" to "multi" and "multi2", both at the same position, and
- * expands "triplemulti" to "triplemulti", "multi3", and "multi2".
- */
- private class MultiAnalyzer extends Analyzer {
-
- public MultiAnalyzer() {
- }
-
- @Override
- public TokenStream tokenStream(String fieldName, Reader reader) {
- TokenStream result = new StandardTokenizer(TEST_VERSION_CURRENT, reader);
- result = new TestFilter(result);
- result = new LowerCaseFilter(TEST_VERSION_CURRENT, result);
- return result;
- }
- }
-
- private final class TestFilter extends TokenFilter {
-
- private String prevType;
- private int prevStartOffset;
- private int prevEndOffset;
-
- private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
- private final PositionIncrementAttribute posIncrAtt = addAttribute(PositionIncrementAttribute.class);
- private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
- private final TypeAttribute typeAtt = addAttribute(TypeAttribute.class);
-
- public TestFilter(TokenStream in) {
- super(in);
- }
-
- @Override
- public final boolean incrementToken() throws java.io.IOException {
- if (multiToken > 0) {
- termAtt.setEmpty().append("multi" + (multiToken + 1));
- offsetAtt.setOffset(prevStartOffset, prevEndOffset);
- typeAtt.setType(prevType);
- posIncrAtt.setPositionIncrement(0);
- multiToken--;
- return true;
- } else {
- boolean next = input.incrementToken();
- if (!next) {
- return false;
- }
- prevType = typeAtt.type();
- prevStartOffset = offsetAtt.startOffset();
- prevEndOffset = offsetAtt.endOffset();
- String text = termAtt.toString();
- if (text.equals("triplemulti")) {
- multiToken = 2;
- return true;
- } else if (text.equals("multi")) {
- multiToken = 1;
- return true;
- } else {
- return true;
- }
- }
- }
-
- @Override
- public void reset() throws IOException {
- super.reset();
- this.prevType = null;
- this.prevStartOffset = 0;
- this.prevEndOffset = 0;
- }
- }
-
- /**
- * Analyzes "the quick brown" as: quick(incr=2) brown(incr=1). Does not work
- * correctly for input other than "the quick brown ...".
- */
- private class PosIncrementAnalyzer extends Analyzer {
-
- public PosIncrementAnalyzer() {
- }
-
- @Override
- public TokenStream tokenStream(String fieldName, Reader reader) {
- TokenStream result = new StandardTokenizer(TEST_VERSION_CURRENT, reader);
- result = new TestPosIncrementFilter(result);
- result = new LowerCaseFilter(TEST_VERSION_CURRENT, result);
- return result;
- }
- }
-
- private class TestPosIncrementFilter extends TokenFilter {
-
- private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
- private final PositionIncrementAttribute posIncrAtt = addAttribute(PositionIncrementAttribute.class);
-
- public TestPosIncrementFilter(TokenStream in) {
- super(in);
- }
-
- @Override
- public final boolean incrementToken() throws java.io.IOException {
- while (input.incrementToken()) {
- if (termAtt.toString().equals("the")) {
- // stopword, do nothing
- } else if (termAtt.toString().equals("quick")) {
- posIncrAtt.setPositionIncrement(2);
- return true;
- } else {
- posIncrAtt.setPositionIncrement(1);
- return true;
- }
- }
- return false;
- }
-
- }
-
-}
fnp / pylucene.git / blobdiff