/*
* 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.
*/
package org.apache.lucene.search.spans;
import java.io.IOException;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.FuzzyQuery;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MultiTermQuery;
import org.apache.lucene.search.PrefixQuery;
import org.apache.lucene.search.RegexpQuery;
import org.apache.lucene.search.WildcardQuery;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.LuceneTestCase;
import org.junit.Test;
/**
* Tests for {@link SpanMultiTermQueryWrapper}, wrapping a few MultiTermQueries.
*/
public class TestSpanMultiTermQueryWrapper extends LuceneTestCase {
private Directory directory;
private IndexReader reader;
private IndexSearcher searcher;
@Override
public void setUp() throws Exception {
super.setUp();
directory = newDirectory();
RandomIndexWriter iw = new RandomIndexWriter(random(), directory);
Document doc = new Document();
Field field = newTextField("field", "", Field.Store.NO);
doc.add(field);
field.setStringValue("quick brown fox");
iw.addDocument(doc);
field.setStringValue("jumps over lazy broun dog");
iw.addDocument(doc);
field.setStringValue("jumps over extremely very lazy broxn dog");
iw.addDocument(doc);
reader = iw.getReader();
iw.close();
searcher = newSearcher(reader);
}
@Override
public void tearDown() throws Exception {
reader.close();
directory.close();
super.tearDown();
}
public void testWildcard() throws Exception {
WildcardQuery wq = new WildcardQuery(new Term("field", "bro?n"));
SpanQuery swq = new SpanMultiTermQueryWrapper<>(wq);
// will only match quick brown fox
SpanFirstQuery sfq = new SpanFirstQuery(swq, 2);
assertEquals(1, searcher.search(sfq, 10).totalHits);
}
public void testPrefix() throws Exception {
WildcardQuery wq = new WildcardQuery(new Term("field", "extrem*"));
SpanQuery swq = new SpanMultiTermQueryWrapper<>(wq);
// will only match "jumps over extremely very lazy broxn dog"
SpanFirstQuery sfq = new SpanFirstQuery(swq, 3);
assertEquals(1, searcher.search(sfq, 10).totalHits);
}
public void testFuzzy() throws Exception {
FuzzyQuery fq = new FuzzyQuery(new Term("field", "broan"));
SpanQuery sfq = new SpanMultiTermQueryWrapper<>(fq);
// will not match quick brown fox
SpanPositionRangeQuery sprq = new SpanPositionRangeQuery(sfq, 3, 6);
assertEquals(2, searcher.search(sprq, 10).totalHits);
}
public void testFuzzy2() throws Exception {
// maximum of 1 term expansion
FuzzyQuery fq = new FuzzyQuery(new Term("field", "broan"), 1, 0, 1, false);
SpanQuery sfq = new SpanMultiTermQueryWrapper<>(fq);
// will only match jumps over lazy broun dog
SpanPositionRangeQuery sprq = new SpanPositionRangeQuery(sfq, 0, 100);
assertEquals(1, searcher.search(sprq, 10).totalHits);
}
public void testNoSuchMultiTermsInNear() throws Exception {
//test to make sure non existent multiterms aren't throwing null pointer exceptions
FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
SpanQuery term = new SpanTermQuery(new Term("field", "brown"));
SpanQuery near = new SpanNearQuery(new SpanQuery[]{term, spanNoSuch}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
//flip order
near = new SpanNearQuery(new SpanQuery[]{spanNoSuch, term}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
near = new SpanNearQuery(new SpanQuery[]{term, spanWCNoSuch}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
near = new SpanNearQuery(new SpanQuery[]{term, spanRgxNoSuch}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
near = new SpanNearQuery(new SpanQuery[]{term, spanPrfxNoSuch}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
//test single noSuch
near = new SpanNearQuery(new SpanQuery[]{spanPrfxNoSuch}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
//test double noSuch
near = new SpanNearQuery(new SpanQuery[]{spanPrfxNoSuch, spanPrfxNoSuch}, 1, true);
assertEquals(0, searcher.search(near, 10).totalHits);
}
public void testNoSuchMultiTermsInNotNear() throws Exception {
//test to make sure non existent multiterms aren't throwing non-matching field exceptions
FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
SpanQuery term = new SpanTermQuery(new Term("field", "brown"));
SpanNotQuery notNear = new SpanNotQuery(term, spanNoSuch, 0,0);
assertEquals(1, searcher.search(notNear, 10).totalHits);
//flip
notNear = new SpanNotQuery(spanNoSuch, term, 0,0);
assertEquals(0, searcher.search(notNear, 10).totalHits);
//both noSuch
notNear = new SpanNotQuery(spanNoSuch, spanNoSuch, 0,0);
assertEquals(0, searcher.search(notNear, 10).totalHits);
WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
notNear = new SpanNotQuery(term, spanWCNoSuch, 0,0);
assertEquals(1, searcher.search(notNear, 10).totalHits);
RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
notNear = new SpanNotQuery(term, spanRgxNoSuch, 1, 1);
assertEquals(1, searcher.search(notNear, 10).totalHits);
PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
notNear = new SpanNotQuery(term, spanPrfxNoSuch, 1, 1);
assertEquals(1, searcher.search(notNear, 10).totalHits);
}
public void testNoSuchMultiTermsInOr() throws Exception {
//test to make sure non existent multiterms aren't throwing null pointer exceptions
FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
SpanQuery term = new SpanTermQuery(new Term("field", "brown"));
SpanOrQuery near = new SpanOrQuery(new SpanQuery[]{term, spanNoSuch});
assertEquals(1, searcher.search(near, 10).totalHits);
//flip
near = new SpanOrQuery(new SpanQuery[]{spanNoSuch, term});
assertEquals(1, searcher.search(near, 10).totalHits);
WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
near = new SpanOrQuery(new SpanQuery[]{term, spanWCNoSuch});
assertEquals(1, searcher.search(near, 10).totalHits);
RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
near = new SpanOrQuery(new SpanQuery[]{term, spanRgxNoSuch});
assertEquals(1, searcher.search(near, 10).totalHits);
PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
near = new SpanOrQuery(new SpanQuery[]{term, spanPrfxNoSuch});
assertEquals(1, searcher.search(near, 10).totalHits);
near = new SpanOrQuery(new SpanQuery[]{spanPrfxNoSuch});
assertEquals(0, searcher.search(near, 10).totalHits);
near = new SpanOrQuery(new SpanQuery[]{spanPrfxNoSuch, spanPrfxNoSuch});
assertEquals(0, searcher.search(near, 10).totalHits);
}
public void testNoSuchMultiTermsInSpanFirst() throws Exception {
//this hasn't been a problem
FuzzyQuery fuzzyNoSuch = new FuzzyQuery(new Term("field", "noSuch"), 1, 0, 1, false);
SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<>(fuzzyNoSuch);
SpanQuery spanFirst = new SpanFirstQuery(spanNoSuch, 10);
assertEquals(0, searcher.search(spanFirst, 10).totalHits);
WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<>(wcNoSuch);
spanFirst = new SpanFirstQuery(spanWCNoSuch, 10);
assertEquals(0, searcher.search(spanFirst, 10).totalHits);
RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));
SpanQuery spanRgxNoSuch = new SpanMultiTermQueryWrapper<>(rgxNoSuch);
spanFirst = new SpanFirstQuery(spanRgxNoSuch, 10);
assertEquals(0, searcher.search(spanFirst, 10).totalHits);
PrefixQuery prfxNoSuch = new PrefixQuery(new Term("field", "noSuch"));
SpanQuery spanPrfxNoSuch = new SpanMultiTermQueryWrapper<>(prfxNoSuch);
spanFirst = new SpanFirstQuery(spanPrfxNoSuch, 10);
assertEquals(0, searcher.search(spanFirst, 10).totalHits);
}
@Test
public void testWrappedQueryIsNotModified() {
final PrefixQuery pq = new PrefixQuery(new Term("field", "test"));
int pqHash = pq.hashCode();
SpanMultiTermQueryWrapper<PrefixQuery> wrapper = new SpanMultiTermQueryWrapper<>(pq);
assertEquals(pqHash, pq.hashCode());
wrapper.setRewriteMethod(new SpanMultiTermQueryWrapper.SpanRewriteMethod() {
@Override
public SpanQuery rewrite(IndexReader reader, MultiTermQuery query) throws IOException {
return null;
}
});
assertEquals(pqHash, pq.hashCode());
}
}