AnalysisOutputComparator.java

/*
 * Copyright 2011-2013 the original author or authors.
 *
 * 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.apache.lucene.analysis.kr.morph;

import java.util.Comparator;

public class AnalysisOutputComparator implements Comparator<AnalysisOutput> {

    public int compare(AnalysisOutput out1, AnalysisOutput out2) {

        int score = out2.getScore() - out1.getScore();
        int pattern = out2.getPatn() - out1.getPatn();
        int len = out1.getStem().length() - out2.getStem().length();

        if (score != 0) return score;

        if (out2.getScore() == AnalysisOutput.SCORE_CORRECT && out1.getScore() == AnalysisOutput.SCORE_CORRECT) {
            pattern = out1.getPatn() == PatternConstants.PTN_N || out1.getPatn() == PatternConstants.PTN_AID ? -1 : pattern;
            pattern = out2.getPatn() == PatternConstants.PTN_N || out2.getPatn() == PatternConstants.PTN_AID ? 1 : pattern;
        }

        return (pattern != 0) ? pattern : len;
    }
}