ifnotcontainerlistpropertiesrightstag.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.services.usermanager.JahiaUser;
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 IfNotContainerListPropertiesRightsTag : displays the body only when the user
 *            can not access the properties window of the enclosing container list
 *
 * @author  Jerome Tamiotti
 */
public class IfNotContainerListPropertiesRightsTag extends BodyTagSupport {

    public int doAfterBody() {

		ServletRequest request = pageContext.getRequest();
		BodyContent body = getBodyContent();
		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");
			}
			// tests if the 'page properties' button must be displayed
			JahiaUser user = jData.params().getUser();

			// retrieves the current container list
			JahiaContainerList containerList = null;
			ContainerListTag parent = (ContainerListTag) findAncestorWithClass(this,ContainerListTag.class);
			if (parent != null) {
				containerList = parent.getContainerList();
			}
			if (containerList != null) {
                Enumeration containers = containerList.getContainers();
 			    if ( !containers.hasMoreElements()
 			         || !containerList.checkWriteAccess(user,jData.params().getSiteID())
 			         || !jData.gui().isEditMode() ) {

				    JspWriter out = body.getEnclosingWriter();
				    out.print(body.getString());
			    }
			}
			return SKIP_BODY;

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

}