RoleHandler.java

/**********************************************************************************
* $URL:https://source.sakaiproject.org/svn/osp/trunk/portal/tool/src/java/org/theospi/portfolio/portal/renderer/RoleHandler.java $
* $Id:RoleHandler.java 9134 2006-05-08 20:28:42Z chmaurer@iupui.edu $
***********************************************************************************
*
 * Copyright (c) 2006, 2008 The Sakai Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.opensource.org/licenses/ECL-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*
**********************************************************************************/
package org.theospi.portfolio.portal.renderer;

import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;

import org.theospi.jsf.impl.DefaultXmlTagHandler;
import org.theospi.jsf.intf.ComponentWrapper;
import org.theospi.jsf.intf.XmlTagFactory;
import org.theospi.portfolio.portal.component.ToolCategoryComponent;
import org.theospi.portfolio.portal.component.ToolComponent;
import org.xml.sax.Attributes;

/**
 * Created by IntelliJ IDEA.
 * User: John Ellis
 * Date: Feb 16, 2006
 * Time: 4:53:00 PM
 * To change this template use File | Settings | File Templates.
 */
public class RoleHandler extends DefaultXmlTagHandler {

   private ToolCategoryRenderer toolCategoryRenderer;

   public RoleHandler(XmlTagFactory factory) {
      super(factory);
      toolCategoryRenderer = (ToolCategoryRenderer) factory;
   }

   public ComponentWrapper startElement(FacesContext context, ComponentWrapper parent, String uri,
                                        String localName, String qName, Attributes attributes) throws IOException {
      UIViewRoot root = context.getViewRoot();
      ToolComponent container = (ToolComponent) context.getApplication().createComponent(ToolComponent.COMPONENT_TYPE);
      container.setId(root.createUniqueId());
      parent.getComponent().getChildren().add(container);

      String roleId = attributes.getValue("role");
      ToolCategoryComponent parentComponent = findParent(parent);
      String siteId = parentComponent.getSiteId();

      container.setRendered(getToolCategoryRenderer().getPortalManager().isUserInRole(roleId, siteId));

      return new ComponentWrapper(parent, container, this);
   }

   protected ToolCategoryComponent findParent(ComponentWrapper parent) {
      UIComponent parentComponent = parent.getComponent();
      while (!(parentComponent instanceof ToolCategoryComponent) && parentComponent != null) {
         parentComponent = parentComponent.getParent();
      }
      return (ToolCategoryComponent) parentComponent;
   }

   public void endElement(FacesContext context, ComponentWrapper current, String uri,
                          String localName, String qName) throws IOException {
   }

   public void characters(FacesContext context, ComponentWrapper current, char[] ch,
                          int start, int length) throws IOException {
      writeCharsToVerbatim(context, current, ch, start, length);
   }

   public ToolCategoryRenderer getToolCategoryRenderer() {
      return toolCategoryRenderer;
   }

   public void setToolCategoryRenderer(ToolCategoryRenderer toolCategoryRenderer) {
      this.toolCategoryRenderer = toolCategoryRenderer;
   }

}