/*
* 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.
*/
package org.apache.lucene.queryparser.xml.builders;
import org.apache.lucene.index.Term;
import org.apache.lucene.queryparser.xml.DOMUtils;
import org.apache.lucene.queryparser.xml.ParserException;
import org.apache.lucene.queries.payloads.AveragePayloadFunction;
import org.apache.lucene.queries.payloads.PayloadScoreQuery;
import org.apache.lucene.search.spans.SpanBoostQuery;
import org.apache.lucene.search.spans.SpanQuery;
import org.apache.lucene.search.spans.SpanTermQuery;
import org.w3c.dom.Element;
/**
* Builder for {@link PayloadScoreQuery}
*/
public class BoostingTermBuilder extends SpanBuilderBase {
@Override
public SpanQuery getSpanQuery(Element e) throws ParserException {
String fieldName = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");
String value = DOMUtils.getNonBlankTextOrFail(e);
SpanQuery btq = new PayloadScoreQuery(new SpanTermQuery(new Term(fieldName, value)),
new AveragePayloadFunction());
btq = new SpanBoostQuery(btq, DOMUtils.getAttribute(e, "boost", 1.0f));
return btq;
}
}