updatecontainerurltag.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.JahiaContainer;
import org.jahia.exceptions.JahiaException;
import org.jahia.services.usermanager.JahiaUser;
import org.jahia.taglibs.container.ContainerTag;
import org.jahia.utils.JahiaConsole;

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

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


public class UpdateContainerURLTag extends TagSupport {
    
    private	JahiaContainer container = null;

    public int doStartTag() {
		
		ContainerTag parent = (ContainerTag) findAncestorWithClass(this, ContainerTag.class);
		if (parent != null) {
			this.container = parent.getContainer();
		}
		if (this.container != null) {
            ServletRequest request = (ServletRequest)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");
            }
			JahiaUser user = jData.params().getUser();
            try {
			    if ( this.container.checkWriteAccess(user) && jData.gui().isEditMode() ) {
        			JspWriter out = pageContext.getOut();
		        	out.print("javascript:" + jData.gui().html().drawUpdateContainerLauncher(container));
			    }
			} catch (JahiaException je) {
			    JahiaConsole.println("UpdateContainerURLTag: doStartTag", je.toString());
			} catch (IOException ioe) {
			    JahiaConsole.println("UpdateContainerURLTag: doStartTag", ioe.toString());
   		    }
	    }
	    return SKIP_BODY;
    }

}