addcontainerurltag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.url;

import org.jahia.data.JahiaData;
import org.jahia.data.containers.JahiaContainerList;
import org.jahia.exceptions.JahiaException;
import org.jahia.taglibs.container.ContainerListTag;
import org.jahia.utils.JahiaConsole;

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

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


/**
 * Class AddContainerURLTag : returns the URL allowing to open the add container
 *                            popup window
 *
 * @author  Jerome Tamiotti
 */
public class AddContainerURLTag extends TagSupport {
    
    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");
		}
		JahiaContainerList containerList = null;
		ContainerListTag parent = (ContainerListTag) findAncestorWithClass(this, ContainerListTag.class);
		if (parent != null) {
			containerList = parent.getContainerList();
		}
		if (containerList != null) {
		    try {
				JspWriter out = pageContext.getOut();
				out.print("javascript:" + jData.gui().html().drawAddContainerLauncher(containerList));
    		} catch (IOException ioe) {
	    		JahiaConsole.println("AddContainerURLTag: doStartTag ", ioe.toString());
   		    } catch (JahiaException je) {
			    JahiaConsole.println("AddContainerURLTag: doStartTag", je.toString());
    		}
        }
		return SKIP_BODY;
	}

}