resourcebundletag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.resourcebundle;

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

import org.jahia.data.JahiaData;
import org.jahia.exceptions.JahiaException;
import org.jahia.utils.JahiaConsole;

import java.io.*;
import java.util.*;

import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;


/**
 * Support for ResourceBundle within Jahia
 * If locale is not set, the locale used is the one returned by paramBean.getLocale()
 *
 * @author Khue Nguyen
 */
public class ResourceBundleTag extends TagSupport {

	private static final String CLASS_NAME = ResourceBundleTag.class.getName();
	
    private String resourceBundle = "";
    private String resourceName   = "";
    private String localeLangage  = "";
    private String localeCountry  = "";
    private String localeVariant  = "";	
	private Locale locale = null;
	
    public void setResourceBundle(String resourceBundle) {
    	if ( resourceBundle == null )
    		resourceBundle = "";
        this.resourceBundle = resourceBundle.trim();
    }

    public void setResourceName(String resourceName) {
    	if ( resourceName == null )
    		resourceName = "";
        this.resourceName = resourceName;
    }

    public void setLocaleLangage(String localeLangage) {
    	if ( localeLangage != null )
        	this.localeLangage = localeLangage.trim();
    }

    public void setLocaleCountry(String localeCountry) {
    	if ( localeCountry != null )
        	this.localeCountry = localeCountry.trim();
    }

    public void setLocaleVariant(String localeCountry) {
    	if ( localeVariant != null )
        	this.localeVariant = localeVariant.trim();
    }


    public int doStartTag() {

		HttpServletRequest request = (HttpServletRequest)pageContext.getRequest();
		JahiaData jData = (JahiaData) request.getAttribute("org.jahia.data.JahiaData");
		if (jData == null) {
			HashMap tempEngineMap = (HashMap) request.getAttribute("org.jahia.engines.EngineHashMap");
			jData                 = (JahiaData) tempEngineMap.get("jData");
		}
		
		ResourceBundle res = null;
		String resValue = null;
		
		if ( localeLangage.equals("") ){
			locale = jData.params().getLocale();
		} else {
			locale = new Locale(localeLangage,localeCountry,localeVariant);
		}			
		try {
			res = ResourceBundle.getBundle(resourceBundle,locale);
    		resValue = res.getString(resourceName);
		} catch ( MissingResourceException mre ) {			
			JahiaConsole.println(CLASS_NAME+".doStartTag()",mre.getMessage());
			resValue = "";
    	}

        if (resValue != null) {
            try {
                JspWriter out = pageContext.getOut();
                out.print( resValue );
            } catch (IOException ioe) {
                JahiaConsole.println(CLASS_NAME+"doStartTag", ioe.toString());
            }
        }
	    return SKIP_BODY;
    }
}