package org.apache.lucene.search.spans;
/**
* 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.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.CheckHits;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import junit.framework.TestCase;
import java.io.IOException;
public class TestSpans extends TestCase {
private IndexSearcher searcher;
public static final String field = "field";
public void setUp() throws Exception {
RAMDirectory directory = new RAMDirectory();
IndexWriter writer= new IndexWriter(directory, new WhitespaceAnalyzer(), true);
for (int i = 0; i < docFields.length; i++) {
Document doc = new Document();
doc.add(new Field(field, docFields[i], Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc);
}
writer.close();
searcher = new IndexSearcher(directory);
//System.out.println("set up " + getName());
}
private String[] docFields = {
"w1 w2 w3 w4 w5",
"w1 w3 w2 w3",
"w1 xx w2 yy w3",
"w1 w3 xx w2 yy w3",
"u2 u2 u1",
"u2 xx u2 u1",
"u2 u2 xx u1",
"u2 xx u2 yy u1",
"u2 xx u1 u2",
"u2 u1 xx u2",
"u1 u2 xx u2",
"t1 t2 t1 t3 t2 t3"
};
public SpanTermQuery makeSpanTermQuery(String text) {
return new SpanTermQuery(new Term(field, text));
}
private void checkHits(Query query, int[] results) throws IOException {
CheckHits.checkHits(query, field, searcher, results);
}
private void orderedSlopTest3SQ(
SpanQuery q1,
SpanQuery q2,
SpanQuery q3,
int slop,
int[] expectedDocs) throws IOException {
boolean ordered = true;
SpanNearQuery snq = new SpanNearQuery( new SpanQuery[]{q1,q2,q3}, slop, ordered);
checkHits(snq, expectedDocs);
}
public void orderedSlopTest3(int slop, int[] expectedDocs) throws IOException {
orderedSlopTest3SQ(
makeSpanTermQuery("w1"),
makeSpanTermQuery("w2"),
makeSpanTermQuery("w3"),
slop,
expectedDocs);
}
public void orderedSlopTest3Equal(int slop, int[] expectedDocs) throws IOException {
orderedSlopTest3SQ(
makeSpanTermQuery("w1"),
makeSpanTermQuery("w3"),
makeSpanTermQuery("w3"),
slop,
expectedDocs);
}
public void orderedSlopTest1Equal(int slop, int[] expectedDocs) throws IOException {
orderedSlopTest3SQ(
makeSpanTermQuery("u2"),
makeSpanTermQuery("u2"),
makeSpanTermQuery("u1"),
slop,
expectedDocs);
}
public void testSpanNearOrdered01() throws Exception {
orderedSlopTest3(0, new int[] {0});
}
public void testSpanNearOrdered02() throws Exception {
orderedSlopTest3(1, new int[] {0,1});
}
public void testSpanNearOrdered03() throws Exception {
orderedSlopTest3(2, new int[] {0,1,2});
}
public void testSpanNearOrdered04() throws Exception {
orderedSlopTest3(3, new int[] {0,1,2,3});
}
public void testSpanNearOrdered05() throws Exception {
orderedSlopTest3(4, new int[] {0,1,2,3});
}
public void testSpanNearOrderedEqual01() throws Exception {
orderedSlopTest3Equal(0, new int[] {});
}
public void testSpanNearOrderedEqual02() throws Exception {
orderedSlopTest3Equal(1, new int[] {1});
}
public void testSpanNearOrderedEqual03() throws Exception {
orderedSlopTest3Equal(2, new int[] {1});
}
public void testSpanNearOrderedEqual04() throws Exception {
orderedSlopTest3Equal(3, new int[] {1,3});
}
public void testSpanNearOrderedEqual11() throws Exception {
orderedSlopTest1Equal(0, new int[] {4});
}
public void testSpanNearOrderedEqual12() throws Exception {
orderedSlopTest1Equal(0, new int[] {4});
}
public void testSpanNearOrderedEqual13() throws Exception {
orderedSlopTest1Equal(1, new int[] {4,5,6});
}
public void testSpanNearOrderedEqual14() throws Exception {
orderedSlopTest1Equal(2, new int[] {4,5,6,7});
}
public void testSpanNearOrderedEqual15() throws Exception {
orderedSlopTest1Equal(3, new int[] {4,5,6,7});
}
public void testSpanNearOrderedOverlap() throws Exception {
boolean ordered = true;
int slop = 1;
SpanNearQuery snq = new SpanNearQuery(
new SpanQuery[] {
makeSpanTermQuery("t1"),
makeSpanTermQuery("t2"),
makeSpanTermQuery("t3") },
slop,
ordered);
Spans spans = snq.getSpans(searcher.getIndexReader());
assertTrue("first range", spans.next());
assertEquals("first doc", 11, spans.doc());
assertEquals("first start", 0, spans.start());
assertEquals("first end", 4, spans.end());
assertTrue("second range", spans.next());
assertEquals("second doc", 11, spans.doc());
assertEquals("second start", 2, spans.start());
assertEquals("second end", 6, spans.end());
assertFalse("third range", spans.next());
}
private Spans orSpans(String[] terms) throws Exception {
SpanQuery[] sqa = new SpanQuery[terms.length];
for (int i = 0; i < terms.length; i++) {
sqa[i] = makeSpanTermQuery(terms[i]);
}
return (new SpanOrQuery(sqa)).getSpans(searcher.getIndexReader());
}
private void tstNextSpans(Spans spans, int doc, int start, int end)
throws Exception {
assertTrue("next", spans.next());
assertEquals("doc", doc, spans.doc());
assertEquals("start", start, spans.start());
assertEquals("end", end, spans.end());
}
public void testSpanOrEmpty() throws Exception {
Spans spans = orSpans(new String[0]);
assertFalse("empty next", spans.next());
}
public void testSpanOrSingle() throws Exception {
Spans spans = orSpans(new String[] {"w5"});
tstNextSpans(spans, 0, 4, 5);
assertFalse("final next", spans.next());
}
public void testSpanOrDouble() throws Exception {
Spans spans = orSpans(new String[] {"w5", "yy"});
tstNextSpans(spans, 0, 4, 5);
tstNextSpans(spans, 2, 3, 4);
tstNextSpans(spans, 3, 4, 5);
tstNextSpans(spans, 7, 3, 4);
assertFalse("final next", spans.next());
}
public void testSpanOrDoubleSkip() throws Exception {
Spans spans = orSpans(new String[] {"w5", "yy"});
assertTrue("initial skipTo", spans.skipTo(3));
assertEquals("doc", 3, spans.doc());
assertEquals("start", 4, spans.start());
assertEquals("end", 5, spans.end());
tstNextSpans(spans, 7, 3, 4);
assertFalse("final next", spans.next());
}
public void testSpanOrUnused() throws Exception {
Spans spans = orSpans(new String[] {"w5", "unusedTerm", "yy"});
tstNextSpans(spans, 0, 4, 5);
tstNextSpans(spans, 2, 3, 4);
tstNextSpans(spans, 3, 4, 5);
tstNextSpans(spans, 7, 3, 4);
assertFalse("final next", spans.next());
}
public void testSpanOrTripleSameDoc() throws Exception {
Spans spans = orSpans(new String[] {"t1", "t2", "t3"});
tstNextSpans(spans, 11, 0, 1);
tstNextSpans(spans, 11, 1, 2);
tstNextSpans(spans, 11, 2, 3);
tstNextSpans(spans, 11, 3, 4);
tstNextSpans(spans, 11, 4, 5);
tstNextSpans(spans, 11, 5, 6);
assertFalse("final next", spans.next());
}
}
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