/*
* Created on 25-Jan-2006
*/
package org.apache.lucene.queryparser.xml.builders;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.FilteredQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.queryparser.xml.DOMUtils;
import org.apache.lucene.queryparser.xml.FilterBuilder;
import org.apache.lucene.queryparser.xml.ParserException;
import org.apache.lucene.queryparser.xml.QueryBuilder;
import org.w3c.dom.Element;
/*
* 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.
*/
/**
* Builder for {@link FilteredQuery}
*/
public class FilteredQueryBuilder implements QueryBuilder {
private final FilterBuilder filterFactory;
private final QueryBuilder queryFactory;
public FilteredQueryBuilder(FilterBuilder filterFactory, QueryBuilder queryFactory) {
this.filterFactory = filterFactory;
this.queryFactory = queryFactory;
}
/* (non-Javadoc)
* @see org.apache.lucene.xmlparser.QueryObjectBuilder#process(org.w3c.dom.Element)
*/
@Override
public Query getQuery(Element e) throws ParserException {
Element filterElement = DOMUtils.getChildByTagOrFail(e, "Filter");
filterElement = DOMUtils.getFirstChildOrFail(filterElement);
Filter f = filterFactory.getFilter(filterElement);
Element queryElement = DOMUtils.getChildByTagOrFail(e, "Query");
queryElement = DOMUtils.getFirstChildOrFail(queryElement);
Query q = queryFactory.getQuery(queryElement);
FilteredQuery fq = new FilteredQuery(q, f);
fq.setBoost(DOMUtils.getAttribute(e, "boost", 1.0f));
return fq;
}
}