/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat, Inc. and/or its affiliates or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat, Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.search.test.analyzer.solr;
import java.io.IOException;
import org.apache.lucene.analysis.TokenFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.TermAttribute;
/**
* A filter which will actually insert spaces. Most filters/tokenizers remove them, but for testing it is
* sometimes better to insert them again ;-)
*
* @author Hardy Ferentschik
* @author Sanne Grinovero
*/
public final class InsertWhitespaceFilter extends TokenFilter {
private TermAttribute termAtt;
public InsertWhitespaceFilter(TokenStream in) {
super( in );
termAtt = addAttribute(TermAttribute.class);
}
@Override
public boolean incrementToken() throws IOException {
if ( input.incrementToken() ) {
String value = " " + termAtt.term() + " ";
termAtt.setTermBuffer( value );
return true;
}
else {
return false;
}
}
}