MoveLevelController.java

/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/osp/trunk/matrix/tool/src/java/org/theospi/portfolio/matrix/control/MoveLevelController.java $
* $Id: MoveLevelController.java 105079 2012-02-24 23:08:11Z ottenhoff@longsight.com $
***********************************************************************************
*
 * Copyright (c) 2005, 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.matrix.control;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.metaobj.utils.mvc.intf.Controller;
import org.springframework.validation.Errors;
import org.springframework.web.servlet.ModelAndView;
import org.theospi.portfolio.matrix.model.Level;
import org.theospi.portfolio.matrix.model.Scaffolding;

/**
 * @author chmaurer
 */
public class MoveLevelController implements Controller {

   protected final Log logger = LogFactory.getLog(getClass());
   
   /* (non-Javadoc)
    * @see org.theospi.utils.mvc.intf.Controller#handleRequest(java.lang.Object, java.util.Map, java.util.Map, java.util.Map, org.springframework.validation.Errors)
    */
   public ModelAndView handleRequest(Object requestModel, Map request, Map session, Map application, Errors errors) {
      EditedScaffoldingStorage sessionBean = (EditedScaffoldingStorage)session.get(
            EditedScaffoldingStorage.EDITED_SCAFFOLDING_STORAGE_SESSION_KEY);
      Scaffolding scaffolding = sessionBean.getScaffolding();
      Map model = new HashMap();
      
      String currentIndex = (String)request.get("current_index");
      String destIndex = (String)request.get("dest_index");
      if (currentIndex != null && destIndex != null) {
         int current = Integer.parseInt(currentIndex);
         int dest = Integer.parseInt(destIndex);
         int max = scaffolding.getLevels().size()-1;
         if (dest == -1) dest = max;
         if (dest == max+1) dest = 0;
         //remove then insert
         Level obj = (Level)scaffolding.getLevels().remove(current);
         scaffolding.getLevels().add(dest, obj);
      }
      
      sessionBean.setScaffolding(scaffolding);
      session.put(EditedScaffoldingStorage.EDITED_SCAFFOLDING_STORAGE_SESSION_KEY,
            sessionBean);
      
      model.put(EditedScaffoldingStorage.STORED_SCAFFOLDING_FLAG, "true");
      return new ModelAndView("success", model);
   }
}