/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.test.query.explain;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;
import org.apache.lucene.search.Query;
import org.hibernate.Transaction;
import org.hibernate.search.FullTextQuery;
import org.hibernate.search.FullTextSession;
import org.hibernate.search.Search;
import org.hibernate.search.test.SearchTestBase;
import org.hibernate.search.testsupport.TestConstants;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* @author Emmanuel Bernard
*/
public class ExplanationTest extends SearchTestBase {
@Test
public void testExplanation() throws Exception {
FullTextSession s = Search.getFullTextSession( openSession() );
Transaction tx = s.beginTransaction();
Dvd dvd = new Dvd("The dark knight", "Batman returns with his best enemy the Joker. The dark side of this movies shows up pretty quickly");
s.persist( dvd );
dvd = new Dvd("Wall-e", "The tiny little robot comes to Earth after the dark times and tries to clean it");
s.persist( dvd );
tx.commit();
s.clear();
tx = s.beginTransaction();
Map<String, Float> boosts = new HashMap<String, Float>(2);
boosts.put( "title", new Float(4) );
boosts.put( "description", new Float(1) );
MultiFieldQueryParser parser = new MultiFieldQueryParser( TestConstants.getTargetLuceneVersion(), new String[] {"title", "description"},
TestConstants.standardAnalyzer, boosts );
Query luceneQuery = parser.parse( "dark" );
FullTextQuery ftQuery = s.createFullTextQuery( luceneQuery, Dvd.class )
.setProjection( FullTextQuery.DOCUMENT_ID, FullTextQuery.EXPLANATION, FullTextQuery.THIS );
@SuppressWarnings("unchecked") List<Object[]> results = ftQuery.list();
assertEquals( 2, results.size() );
for ( Object[] result : results ) {
assertEquals( ftQuery.explain( (Integer) result[0] ).toString(), result[1].toString() );
s.delete( result[2] );
}
tx.commit();
s.close();
}
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class[] {
Dvd.class
};
}
}