/*
* 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.flexible.standard.builders;
import org.apache.lucene.queryparser.flexible.core.QueryNodeException;
import org.apache.lucene.queryparser.flexible.core.builders.QueryTreeBuilder;
import org.apache.lucene.queryparser.flexible.core.nodes.QueryNode;
import org.apache.lucene.queryparser.flexible.standard.nodes.SynonymQueryNode;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.Query;
/** Builer for {@link SynonymQueryNode}. */
public class SynonymQueryNodeBuilder implements StandardQueryBuilder {
/** Sole constructor. */
public SynonymQueryNodeBuilder() {}
@Override
public Query build(QueryNode queryNode) throws QueryNodeException {
// TODO: use SynonymQuery instead
SynonymQueryNode node = (SynonymQueryNode) queryNode;
BooleanQuery.Builder builder = new BooleanQuery.Builder();
for (QueryNode child : node.getChildren()) {
Object obj = child.getTag(QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);
if (obj != null) {
Query query = (Query) obj;
builder.add(query, Occur.SHOULD);
}
}
return builder.build();
}
}