TokenizerMapper.java

/*
 * Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
 *
 * 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 wordcount;

import com.hazelcast.mapreduce.Context;
import com.hazelcast.mapreduce.Mapper;

import java.util.StringTokenizer;

class TokenizerMapper implements Mapper<String, String, String, Integer> {

    private static final Integer ONE = 1;

    @Override
    public void map(String key, String value, Context<String, Integer> context) {
        StringTokenizer tokenizer = new StringTokenizer(value);
        while (tokenizer.hasMoreTokens()) {
            String word = WordCountExample.cleanWord(tokenizer.nextToken());
            context.emit(word.toLowerCase(), ONE);
        }
    }
}