/*
 * ExactTokenAnalyzer.java
 *
 * This source file is part of the FoundationDB open source project
 *
 * Copyright 2015-2023 Apple Inc. and the FoundationDB project 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 com.apple.foundationdb.record.lucene.exact;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.util.CharTokenizer;

/**
 * Effectively a no-op analyzer.
 */
public class ExactTokenAnalyzer extends Analyzer {

    private static class NoOpTokenizer extends CharTokenizer {
        @Override
        protected boolean isTokenChar(int inputCharacter) {
            return !Character.isISOControl(inputCharacter);
        }
    }

    @Override
    protected TokenStreamComponents createComponents(String fieldName) {
        return new TokenStreamComponents(new NoOpTokenizer());
    }
}
