org.opencloudengine.flamingo.mapreduce.util.DefaultOptionCreator.java Source code

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Here is the source code for org.opencloudengine.flamingo.mapreduce.util.DefaultOptionCreator.java

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/*
 * 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.opencloudengine.flamingo.mapreduce.util;

import org.apache.commons.cli2.Option;
import org.apache.commons.cli2.builder.ArgumentBuilder;
import org.apache.commons.cli2.builder.DefaultOptionBuilder;

/**
 * Command Line Defaut Option Creator for MapReduce Job.
 *
 * @author Edward KIM (Cloudine)
 * @since 0.1
 */
public class DefaultOptionCreator {

    /**
     *   .
     */
    public static final String INPUT_OPTION = "input";

    /**
     *   .
     */
    public static final String OUTPUT_OPTION = "output";

    /**
     *  ???  ?? ? ?.
     *
     * @return ?? 
     */
    public static Option helpOption() {
        return new DefaultOptionBuilder().withLongName("help").withDescription("??? .")
                .withShortName("h").create();
    }

    /**
     *  ???    ? ?.
     *
     * @return   
     */
    public static DefaultOptionBuilder inputOption() {
        return new DefaultOptionBuilder().withLongName(INPUT_OPTION).withRequired(false).withShortName("i")
                .withArgument(new ArgumentBuilder().withName(INPUT_OPTION).withMinimum(1).withMaximum(1).create())
                .withDescription("MapReduce Job?  ");
    }

    /**
     *  ???    ? ?.
     *
     * @return   
     */
    public static DefaultOptionBuilder outputOption() {
        return new DefaultOptionBuilder().withLongName(OUTPUT_OPTION).withRequired(false).withShortName("o")
                .withArgument(new ArgumentBuilder().withName(OUTPUT_OPTION).withMinimum(1).withMaximum(1).create())
                .withDescription("MapReduce Job?  ");
    }

}