de.matzefratze123.heavyspleef.flag.presets.EnumListFlag.java Source code

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Here is the source code for de.matzefratze123.heavyspleef.flag.presets.EnumListFlag.java

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/*
 * This file is part of HeavySpleef.
 * Copyright (c) 2014-2015 matzefratze123
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package de.matzefratze123.heavyspleef.flag.presets;

import org.dom4j.Element;

import de.matzefratze123.heavyspleef.core.flag.InputParseException;
import de.matzefratze123.heavyspleef.flag.presets.DelimiterBasedListParser.Delimiters;

public abstract class EnumListFlag<T extends Enum<T>> extends ListFlag<T> {

    private final ListInputParser<T> parser = new DelimiterBasedListParser<>(Delimiters.SPACE_DELIMITER,
            new ArgumentParser<T>() {

                @Override
                public T parseArgument(String argument) throws InputParseException {
                    try {
                        return valueOf(argument);
                    } catch (Exception e) {
                        throw new InputParseException(argument, e);
                    }
                }

                private T valueOf(String argument) {
                    //Upper-case transform the argument
                    argument = argument.toUpperCase();

                    return Enum.valueOf(getEnumType(), argument);
                }

            });

    public abstract Class<T> getEnumType();

    @Override
    public String getListItemAsString(T item) {
        return item.name();
    }

    @Override
    public void marshalListItem(Element element, T item) {
        element.addText(item.name());
    }

    @Override
    public T unmarshalListItem(Element element) {
        return Enum.valueOf(getEnumType(), element.getText());
    }

    @Override
    public ListInputParser<T> createParser() {
        return parser;
    }

}