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


/**
 * Class ContainerListPropertiesURLTag : displays the URL of the container list
 *                                       properties window
 *
 * @author  Jerome Tamiotti
 */
public class ContainerListPropertiesURLTag extends TagSupport {

    public int doStartTag() {
		
		HttpServletRequest request = (HttpServletRequest)pageContext.getRequest();
		try {
			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");
			}
			// retrieves the current container list
			JahiaContainerList containerList = null;
			ContainerListTag parent = (ContainerListTag) findAncestorWithClass(this,ContainerListTag.class);
			if (parent != null) {
				containerList = parent.getContainerList();
			}
			if (containerList != null) {
    			JspWriter out = pageContext.getOut();
	    		out.print("javascript:");
	    		out.print(jData.gui().html().drawContainerListPropertiesLauncher(containerList));
	        }

		} catch (IOException ioe) {
			JahiaConsole.println("ContainerListPropertiesURLTag: ", ioe.toString());
   		} catch (JahiaException je) {
			JahiaConsole.println("ContainerListPropertiesURLTag: ", je.toString());
		}
		return SKIP_BODY;
    }

}