001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (c) 2004-2008 Paul Ferraro
004 * 
005 * This library is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Lesser General Public License as published by the 
007 * Free Software Foundation; either version 2.1 of the License, or (at your 
008 * option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful, but WITHOUT
011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
013 * for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this library; if not, write to the Free Software Foundation, 
017 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018 * 
019 * Contact: ferraro@users.sourceforge.net
020 */
021package net.sf.hajdbc.util;
022
023/**
024 * Helper methods for Enums
025 * @author Paul Ferraro
026 */
027public final class Enums
028{
029        /**
030         * Like {@link Enum#valueOf(Class, String)}, but converts id to upper-case and swaps dashes for underscores.
031         * Used for deserializing configuration file enums.
032         * @param <T>
033         * @param targetEnum
034         * @param id
035         * @return an enum value
036         */
037        public static <T extends Enum<T>> T valueOf(Class<T> targetEnum, String id)
038        {
039                return Enum.valueOf(targetEnum, id.toUpperCase().replace(Strings.DASH, Strings.UNDERSCORE));
040        }
041        
042        /**
043         * Like {@link Enum#name()}, but returns in lower-case, swapping underscores for dashes.
044         * Used for serializing configuration file enums.
045         * @param <T>
046         * @param value
047         * @return the id of the specified enum value
048         */
049        public static <T extends Enum<T>> String id(T value)
050        {
051                return value.name().toLowerCase().replace(Strings.UNDERSCORE, Strings.DASH);
052        }
053        
054        private Enums()
055        {
056                // Hide constructor
057        }
058}