pagesengineresourcebundle.java

java 写的一个新闻发布系统

//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//
//
//
// NK 18.02.2002 - added in Jahia
//

package org.jahia.resourcebundle;

import java.util.Hashtable;
import java.util.Locale;
import java.util.ResourceBundle;

import javax.servlet.*;					            // ServletException
import javax.servlet.http.*;			            // HttpServletRequest, HttpSerlvetResponse

import org.jahia.services.pages.JahiaPage;
import org.jahia.utils.JahiaConsole;
import org.jahia.params.ParamBean;


/**
 * Tools to handles Pages engine resource bundle.
 * 
 * @author Khue Nguyen
 * @version 1.0
 */
public class PagesEngineResourceBundle
{

    private static final String CLASS_NAME = PagesEngineResourceBundle.class.getName();
    
	private static PagesEngineResourceBundle mInstance ;
	
	private Hashtable resources ;
	

	private PagesEngineResourceBundle(){
		resources = new Hashtable();
	}
	

	public static synchronized PagesEngineResourceBundle getInstance(){
		
		if ( mInstance == null ){
			mInstance = new PagesEngineResourceBundle();
		}	
		return mInstance;
	} 	


	/**
	 * Add a resource bundle
	 * 
	 * @param JahiaPage page
	 * @param ResourceBundle res
	 * @param ParamBean jParams
	 */
	public void addResourceBundle(JahiaPage page, ResourceBundle res, ParamBean jParams ){
		
		if ( page == null || res == null || jParams == null )
			return;
        resources.put( JahiaResourceBundle.ENGINE_DEFAULT_RESOURCE_BUNDLE + "_" + page.getID(), res );
	}

	/**
	 * Returns a resource bundle for a given page
	 *
	 * @param JahiaPage page
	 * @return ResourceBundle res
	 * @param ParamBean jParams
	 */
	public ResourceBundle getResourceBundle(JahiaPage page, ParamBean jParams ){
		
		if ( page == null || jParams == null )
			return null;

		ResourceBundle res = (ResourceBundle)resources.get( JahiaResourceBundle.ENGINE_DEFAULT_RESOURCE_BUNDLE 
		                      + "_" + page.getID() );
		return res;
	}

}