messages.java

来自「java语言开发的P2P流媒体系统」· Java 代码 · 共 106 行

/* 
 * P2P-Radio - Peer to peer streaming system
 * Project homepage: http://p2p-radio.sourceforge.net/
 * Copyright (C) 2003-2004 Michael Kaufmann <[e-mail]>
 * 
 * ---------------------------------------------------------------------------
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * ---------------------------------------------------------------------------
 */

package p2pradio;

import java.text.MessageFormat;
import java.util.MissingResourceException;
import java.util.ResourceBundle;


/**
 * Helper class for translating messages.
 * 
 * @author Michael Kaufmann
 */ 
public class Messages
{
	private static final String BUNDLE_NAME = "p2pradio.p2pradio"; //$NON-NLS-1$
	private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(BUNDLE_NAME);

	private Messages()
	{
		// Keine Instanzen
	}
	
	/**
	 * Translates the message <tt>key</tt>.
	 * 
	 * @param key The message to be translated
	 * @return The translated message
	 */
	public static String getString(String key)
	{
		try
		{
			return RESOURCE_BUNDLE.getString(key);
		}
		catch (MissingResourceException e)
		{
			e.printStackTrace();
			return '!' + key + '!';
		}
	}
	
	/**
	 * Returns whether a translation of <tt>key</tt> is available.
	 */
	public static boolean isTranslationAvailable(String key)
	{
		try
		{
			RESOURCE_BUNDLE.getString(key);
		}
		catch (MissingResourceException e)
		{
			return false;
		}
		
		return true;
	}
	
	/**
	 * Translates the message <tt>key</tt> and formats it using the specified arguments.
	 * 
	 * @param key The message to be translated
	 * @return The translated message
	 */
	public static String getString(String key, Object[] arguments)
	{
		return MessageFormat.format(getString(key), arguments);
	}
	
	/**
	 * Translates the message <tt>key</tt> and formats it using the specified argument.
	 * 
	 * @param key The message to be translated
	 * @return The translated message
	 */
	public static String getString(String key, Object argument)
	{
		Object[] arguments = new Object[1];
		arguments[0] = argument;
		
		return getString(key, arguments);
	}
}