/*

  * Copyright 2005-2007 The Kuali 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/ecl2.php

  * 

  * 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.kuali.rice.kew.xml.export;

 import java.util.Iterator;

 import org.jdom.Element;

 import org.kuali.rice.kew.export.ExportDataSet;

 import org.kuali.rice.kew.help.HelpEntry;

 import org.kuali.rice.kew.xml.XmlConstants;

 import org.kuali.rice.kew.xml.XmlRenderer;

 /**

  * Exports {@link HelpEntry}s to XML.

  *

  * @see HelpEntry

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class HelpEntryXmlExporter implements XmlExporter, XmlConstants {

     protected final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(getClass());

     private XmlRenderer renderer = new XmlRenderer(HELP_NAMESPACE);

     public Element export(ExportDataSet dataSet) {

         if (!dataSet.getHelp().isEmpty()) {

             Element rootElement = renderer.renderElement(null, HELP_ENTRIES);

             rootElement.setAttribute(SCHEMA_LOCATION_ATTR, HELP_SCHEMA_LOCATION, SCHEMA_NAMESPACE);

             for (Iterator iterator = dataSet.getHelp().iterator(); iterator.hasNext();) {

                 HelpEntry helpEntry = (HelpEntry)iterator.next();

                 exportHelpEntry(rootElement, helpEntry);

             }

             return rootElement;

         }

         return null;

     }

     private void exportHelpEntry(Element parent, HelpEntry helpEntry) {

         Element helpElement = renderer.renderElement(parent, HELP_ENTRY);

         renderer.renderTextElement(helpElement, HELP_NAME, helpEntry.getHelpName());

         renderer.renderTextElement(helpElement, HELP_KEY, helpEntry.getHelpKey());

         renderer.renderCDATAElement(helpElement, HELP_TEXT, helpEntry.getHelpText());

     }

 }