GeneralLabelLocator.java

/**
 * Copyright 2010 the original author or authors.
 * 
 * This file is part of Zksample2. http://zksample2.sourceforge.net/
 *
 * Zksample2 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.
 * 
 * Zksample2 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 Zksample2.  If not, see <http://www.gnu.org/licenses/gpl.html>.
 */
package de.forsthaus.webui.util;

import java.io.File;
import java.net.URL;
import java.util.Locale;

import org.apache.commons.lang.StringUtils;
import org.zkoss.util.resource.LabelLocator;
import org.zkoss.zk.ui.Sessions;

public class GeneralLabelLocator implements LabelLocator {

	private static final String MENU_FILE_NAME = "i3-label";
	private static final String MENU_FILE_SUFFIX = ".properties";
	private String context;

	/**
	 * Constructor
	 * 
	 * @param context
	 *            wam context
	 */
	public GeneralLabelLocator(String context) {
		this.context = context;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.zkoss.util.resource.LabelLocator#locate(java.util.Locale)
	 */
	public URL locate(Locale locale) throws Exception {

		// String menu_res_filename =
		// (locale.getLanguage().equals(Locale.ITALIAN.getLanguage())) ?
		// MENU_FILE_NAME + MENU_FILE_SUFFIX
		// : MENU_FILE_NAME + "_" + locale.getLanguage() + MENU_FILE_SUFFIX;

		String menu_res_filename = "";

		if (StringUtils.isEmpty(context)) {
			// Locale.setDefault(new Locale("en", "EN"));
			context = "en_EN";
		}

		if (context.equals("en_EN")) {
			// default property-file without locale
			Sessions.getCurrent().setAttribute("px_preferred_locale", new Locale("en", "EN"));

			menu_res_filename = MENU_FILE_NAME + MENU_FILE_SUFFIX;
		} else if (context.equals("de_DE")) {
			Sessions.getCurrent().setAttribute("px_preferred_locale", new Locale("de", "DE"));

			menu_res_filename = MENU_FILE_NAME + "_" + "de_DE" + MENU_FILE_SUFFIX;
		}

		// String menu_res_filename = MENU_FILE_NAME + "_" + context +
		// MENU_FILE_SUFFIX;

		// real path
		String menu_res_path = Sessions.getCurrent().getWebApp().getRealPath("/WEB-INF/" + menu_res_filename);

		// check if the file exists
		File fmr = new File(menu_res_path);
		if (!fmr.exists())
			throw new Exception("...........");

		// return url
		return fmr.toURL();
	}
}