001/*
002 * JGrapes Event Driven Framework
003 * Copyright (C) 2017-2018 Michael N. Lipp
004 * 
005 * This program is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Affero General Public License as published by 
007 * the Free Software Foundation; either version 3 of the License, or 
008 * (at your option) any later version.
009 * 
010 * This program is distributed in the hope that it will be useful, but 
011 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
012 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License 
013 * for more details.
014 * 
015 * You should have received a copy of the GNU Affero General Public License along 
016 * with this program; if not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jgrapes.webconsole.jqueryui;
020
021import java.net.URL;
022import org.jgrapes.webconsole.base.ResourceNotFoundException;
023
024/**
025 * Represents a theme provider.
026 */
027public abstract class ThemeProvider {
028
029    /**
030     * Return the id of the theme.
031     * 
032     * @return the result
033     */
034    public abstract String themeId();
035
036    /**
037     * Return the name of the theme. The default implementation 
038     * uses the theme id, replaces underscores with spaces and
039     * capitalizes the first character.
040     * 
041     * @return the result
042     */
043    public String themeName() {
044        return (Character.toUpperCase(themeId().charAt(0))
045            + themeId().substring(1)).replace('_', ' ');
046    }
047
048    /**
049     * Find the requested resource.
050     * 
051     * @param name the resource name
052     * @return the data as input stream
053     */
054    public URL getResource(String name)
055            throws ResourceNotFoundException {
056        URL resource = getClass().getResource(name);
057        if (resource == null) {
058            throw new ResourceNotFoundException();
059        }
060        return resource;
061    }
062}