homepagetitletag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.util;

import org.jahia.data.JahiaData;
import org.jahia.exceptions.JahiaException;
import org.jahia.services.pages.JahiaPage;
import org.jahia.utils.JahiaConsole;

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

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


/**
 * Class HomePageTitleTag : returns the title of the home page
 *
 * @author  Jerome Tamiotti
 */
public class HomePageTitleTag extends TagSupport {
    
    private int maxchar = 0;

    public void setMaxchar(int maxchar) {
        this.maxchar = maxchar;
    }

    public int doStartTag() {

		ServletRequest request = 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");
		}
		try {
		    JahiaPage homePage = jData.gui().getHomePage();
			JspWriter out = pageContext.getOut();
			if (this.maxchar == 0) {
			    out.print( homePage.getTitle() );
			} else {
			    out.print( jData.gui().glueTitle(homePage.getTitle(), this.maxchar) );
			}
		} catch (IOException ioe) {
			JahiaConsole.println("HomePageTitleTag: doStartTag ", ioe.toString());
		} catch (JahiaException je) {
			JahiaConsole.println("HomePageTitleTag: doStartTag ", je.toString());
		}
        return SKIP_BODY;
    }

}