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* Licensed to the Apache Software Foundation (ASF) under one
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* 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 com.github.le11.nls.lucene;
import com.github.le11.nls.lucene.payloads.UIMAPayloadsAnalyzer;
import com.github.le11.nls.lucene.payloads.UIMATypeBasedSimilarity;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.*;
import org.apache.lucene.search.payloads.MaxPayloadFunction;
import org.apache.lucene.search.payloads.PayloadTermQuery;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.util.Version;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author tommaso
*/
public class UIMATypeBasedSimilarityTest {
private Analyzer analyzer;
private IndexWriter writer;
private RAMDirectory dir;
@Before
public void setUp() throws Exception {
dir = new RAMDirectory();
analyzer = new UIMAPayloadsAnalyzer("/HmmTaggerAggregate.xml");
writer = new IndexWriter(dir, new IndexWriterConfig(Version.LUCENE_33, analyzer));
Document doc = new Document();
doc.add(new Field("title", "this is a dummy title containing an entity for London", Field.Store.YES,
Field.Index.ANALYZED));
doc.add(new Field("contents", "there is some content written here about the british city",
Field.Store.YES, Field.Index.ANALYZED));
writer.addDocument(doc, analyzer);
writer.commit();
// try the search over the first doc
IndexSearcher indexSearcher = new IndexSearcher(writer.getReader());
TopDocs result = indexSearcher.search(
new MatchAllDocsQuery("contents"), 10);
assertTrue(result.totalHits > 0);
Document d = indexSearcher.doc(result.scoreDocs[0].doc);
assertNotNull(d);
assertNotNull(d.getFieldable("title"));
assertNotNull(d.getFieldable("contents"));
// add a second doc
doc = new Document();
doc.add(new Field("title", "some title regarding some article written in English", Field.Store.YES,
Field.Index.ANALYZED));
doc.add(new Field("contents", "this is the content of the article about",
Field.Store.YES, Field.Index.ANALYZED));
writer.addDocument(doc, analyzer);
writer.commit();
}
@After
public void tearDown() throws Exception {
writer.close();
}
@Test
public void baseSimilarityTest() {
try {
IndexSearcher searcher = new IndexSearcher(dir, true);
Similarity payloadSimilarity = new UIMATypeBasedSimilarity();
searcher.setSimilarity(payloadSimilarity);
// BooleanQuery booleanQuery = new BooleanQuery();
// booleanQuery.add(new PayloadTermQuery(new Term("title", "London"), new MaxPayloadFunction()), BooleanClause.Occur.SHOULD);
// booleanQuery.add(new PayloadTermQuery(new Term("title", "English"), new MaxPayloadFunction()), BooleanClause.Occur.SHOULD);
// SpanQuery[] clauses = new SpanQuery[]{new PayloadTermQuery(new Term("title","London"),new MaxPayloadFunction()),
// new PayloadTermQuery(new Term("title","English"),new MaxPayloadFunction())};
// int slop = 3;
// boolean inOrder = true;
// Query query = new PayloadNearQuery(clauses, slop, inOrder);
Query directQuery = new TermQuery(new Term("title", "London"));
TopDocs topDocs = searcher.search(directQuery, 10);
System.out.println("Number of matching docs: " + topDocs.totalHits);
ScoreDoc doc1 = topDocs.scoreDocs[0];
System.out.println("Doc: " + doc1.toString());
System.out.println("Explain: " + searcher.explain(directQuery, doc1.doc));
Query payloadQuery = new PayloadTermQuery(new Term("title", "London"), new MaxPayloadFunction());
topDocs = searcher.search(payloadQuery, 10);
System.out.println("Number of matching docs: " + topDocs.totalHits);
ScoreDoc doc2 = topDocs.scoreDocs[0];
System.out.println("Doc: " + doc2.toString());
System.out.println("Explain: " + searcher.explain(payloadQuery, doc2.doc));
assertTrue(doc1.score < doc2.score);
} catch (Exception e) {
e.printStackTrace();
fail(e.getLocalizedMessage());
}
}
}