de.mustnotbenamed.quickstart.undertowserver.CliHelper.java Source code

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Here is the source code for de.mustnotbenamed.quickstart.undertowserver.CliHelper.java

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/**
 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * For more information, please refer to <http://unlicense.org>
 */
package de.mustnotbenamed.quickstart.undertowserver;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.TypeHandler;

/**
 * @author schrader
 */
public class CliHelper {

    public static <T> T option(CommandLine cmd, Option option, T defaultValue) throws ParseException {
        T result = defaultValue;

        if (cmd.hasOption(option.getOpt())) {
            String optionValue = cmd.getOptionValue(option.getOpt());
            result = (T) TypeHandler.createValue(optionValue, option.getType());
        }

        return result;
    }

}