/*
* 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.index.Term;
import org.apache.lucene.queryparser.flexible.core.QueryNodeException;
import org.apache.lucene.queryparser.flexible.core.nodes.FuzzyQueryNode;
import org.apache.lucene.queryparser.flexible.core.nodes.QueryNode;
import org.apache.lucene.search.FuzzyQuery;
/**
* Builds a {@link FuzzyQuery} object from a {@link FuzzyQueryNode} object.
*/
public class FuzzyQueryNodeBuilder implements StandardQueryBuilder {
public FuzzyQueryNodeBuilder() {
// empty constructor
}
@Override
public FuzzyQuery build(QueryNode queryNode) throws QueryNodeException {
FuzzyQueryNode fuzzyNode = (FuzzyQueryNode) queryNode;
String text = fuzzyNode.getTextAsString();
int numEdits = FuzzyQuery.floatToEdits(fuzzyNode.getSimilarity(),
text.codePointCount(0, text.length()));
return new FuzzyQuery(new Term(fuzzyNode.getFieldAsString(), fuzzyNode
.getTextAsString()), numEdits, fuzzyNode
.getPrefixLength());
}
}