/**
    * Copyright 2005-2011 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.krad.web.controller;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.framework.parameter.ParameterService;
  import org.kuali.rice.core.framework.services.CoreFrameworkServiceLocator;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestParam;
  import org.springframework.web.servlet.ModelAndView;
  
  /**
   * This simple controller loads the module locked view when a user accesses a
   * module which has been locked for maintenance.
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @Controller
  public class ModuleLockedController {
  
      /**
       * Constant defined to match with method call in moduleLocked.jsp which is
       * set to a message that is displayed when the module is locked.
       */
      public static final String MODULE_LOCKED_MESSAGE = "moduleLockedMessage";
      public static final String MODULE_PARAMETER = "moduleNamespace";
      
      @RequestMapping(value = "/module-locked")
      public ModelAndView moduleLocked(@RequestParam(value = MODULE_PARAMETER, required = true) String moduleNamespaceCode) {
          ModelAndView modelAndView = new ModelAndView("moduleLocked");
          ParameterService parameterSerivce = CoreFrameworkServiceLocator.getParameterService();
          String messageParamComponentCode = KRADConstants.DetailTypes.OLTP_LOCKOUT_DETAIL_TYPE;
          String messageParamName = KRADConstants.SystemGroupParameterNames.OLTP_LOCKOUT_MESSAGE_PARM;
          String lockoutMessage = parameterSerivce.getParameterValueAsString(moduleNamespaceCode, messageParamComponentCode, messageParamName);
          
          if(StringUtils.isBlank(lockoutMessage)) {
              String defaultMessageParamName = KRADConstants.SystemGroupParameterNames.OLTP_LOCKOUT_DEFAULT_MESSAGE;
              lockoutMessage = parameterSerivce.getParameterValueAsString(KRADConstants.KRAD_NAMESPACE, messageParamComponentCode, defaultMessageParamName);
          }
          modelAndView.addObject(MODULE_LOCKED_MESSAGE, lockoutMessage);
          return modelAndView;
      }
  }