/*
* 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.solr.search.join;
import java.util.Collections;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import org.apache.lucene.search.join.ScoreMode;
import org.apache.solr.search.SyntaxError;
class ScoreModeParser {
final private static Map<String, ScoreMode> lowerAndCapitalCase =
Collections.unmodifiableMap( new HashMap<String, ScoreMode>() {
{
for (ScoreMode s : ScoreMode.values()) {
put(s.name().toLowerCase(Locale.ROOT), s);
put(s.name(), s);
}
}
});
private ScoreModeParser(){}
/**
* recognizes as-is {@link ScoreMode} names, and lowercase as well,
* otherwise throws exception
* @throws SyntaxError when it's unable to parse
* */
static ScoreMode parse(String score) throws SyntaxError {
final ScoreMode scoreMode = lowerAndCapitalCase.get(score);
if (scoreMode == null) {
throw new SyntaxError("Unable to parse ScoreMode from: " + score);
}
return scoreMode;
}
}