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 java.io.IOException;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.document.*;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.store.Directory;
/** Document boost unit test.
*
*
* @version $Revision: 1091277 $
*/
public class TestSetNorm extends LuceneTestCase {
public void testSetNorm() throws Exception {
Directory store = newDirectory();
IndexWriter writer = new IndexWriter(store, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random)));
// add the same document four times
Fieldable f1 = newField("field", "word", Field.Store.YES, Field.Index.ANALYZED);
Document d1 = new Document();
d1.add(f1);
writer.addDocument(d1);
writer.addDocument(d1);
writer.addDocument(d1);
writer.addDocument(d1);
writer.close();
// reset the boost of each instance of this document
IndexReader reader = IndexReader.open(store, false);
reader.setNorm(0, "field", 1.0f);
reader.setNorm(1, "field", 2.0f);
reader.setNorm(2, "field", 4.0f);
reader.setNorm(3, "field", 16.0f);
reader.close();
// check that searches are ordered by this boost
final float[] scores = new float[4];
IndexSearcher is = new IndexSearcher(store, true);
is.search
(new TermQuery(new Term("field", "word")),
new Collector() {
private int base = 0;
private Scorer scorer;
@Override
public void setScorer(Scorer scorer) throws IOException {
this.scorer = scorer;
}
@Override
public final void collect(int doc) throws IOException {
scores[doc + base] = scorer.score();
}
@Override
public void setNextReader(IndexReader reader, int docBase) {
base = docBase;
}
@Override
public boolean acceptsDocsOutOfOrder() {
return true;
}
});
is.close();
float lastScore = 0.0f;
for (int i = 0; i < 4; i++) {
assertTrue(scores[i] > lastScore);
lastScore = scores[i];
}
store.close();
}
}