/**
* Copyright 2014 National University of Ireland, Galway.
*
* This file is part of the SIREn project. Project and contact information:
*
* https://github.com/rdelbru/SIREn
*
* Licensed 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.sindice.siren.qparser.keyword.builders;
import org.apache.commons.lang.NotImplementedException;
import org.apache.lucene.queryparser.flexible.core.QueryNodeException;
import org.apache.lucene.queryparser.flexible.core.nodes.QueryNode;
import org.apache.lucene.queryparser.flexible.standard.nodes.MultiPhraseQueryNode;
import org.apache.lucene.search.MultiPhraseQuery;
/**
* Builds a {@link MultiPhraseQuery} object from a {@link MultiPhraseQueryNode}
* object.
*/
public class MultiPhraseQueryNodeBuilder implements KeywordQueryBuilder {
public MultiPhraseQueryNodeBuilder() {
// empty constructor
}
public MultiPhraseQuery build(QueryNode queryNode) throws QueryNodeException {
throw new NotImplementedException("Multi phrase queries are not supported by SIRen yet");
//
// MultiPhraseQueryNode phraseNode = (MultiPhraseQueryNode) queryNode;
//
// MultiPhraseQuery phraseQuery = new MultiPhraseQuery();
//
// List<QueryNode> children = phraseNode.getChildren();
//
// if (children != null) {
// TreeMap<Integer, List<Term>> positionTermMap = new TreeMap<Integer, List<Term>>();
//
// for (QueryNode child : children) {
// FieldQueryNode termNode = (FieldQueryNode) child;
// TermQuery termQuery = (TermQuery) termNode
// .getTag(QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);
// List<Term> termList = positionTermMap.get(termNode
// .getPositionIncrement());
//
// if (termList == null) {
// termList = new LinkedList<Term>();
// positionTermMap.put(termNode.getPositionIncrement(), termList);
//
// }
//
// termList.add(termQuery.getTerm());
//
// }
//
// for (int positionIncrement : positionTermMap.keySet()) {
// List<Term> termList = positionTermMap.get(positionIncrement);
//
// phraseQuery.add(termList.toArray(new Term[termList.size()]),
// positionIncrement);
//
// }
//
// }
//
// return phraseQuery;
}
}