/*
    * Copyright 2011 FatWire Corporation. All Rights Reserved.
    *
    * Licensed under the Apache 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.apache.org/licenses/LICENSE-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 com.fatwire.gst.foundation.controller.action.support;
  
  import COM.FutureTense.Interfaces.ICS;
  
  import com.fatwire.gst.foundation.controller.action.Action;
  import com.fatwire.gst.foundation.controller.action.Injector;
  
  /**
   * Class that provides access to a single action, ie the name is ignored and it
   * will always return the same new Action, from the actionClass field.
   * 
   * @author Dolf Dijkstra
   * 
   */
  public class SingleActionLocator extends AbstractActionLocator {
  
      private Class<Action> actionClass;
  
      public SingleActionLocator() {
          super();
      }
  
      public SingleActionLocator(Injector injector, String actionClass) {
          super(injector);
          setActionClass(actionClass);
      }
  
      @Override
      protected Action doFindAction(ICS ics, String name) {
  
          try {
              return actionClass.newInstance();
          } catch (InstantiationException e) {
              throw new RuntimeException(e);
          } catch (IllegalAccessException e) {
              throw new RuntimeException(e);
          }
      }
  
      public Class<Action> getActionClass() {
          return actionClass;
      }
  
      @SuppressWarnings("unchecked")
      public void setActionClass(String actionClass) {
          try {
              this.actionClass = (Class<Action>) Thread.currentThread().getContextClassLoader().loadClass(actionClass);
              this.actionClass.newInstance(); // test if this class can be
                                              // instantiated
          } catch (ClassNotFoundException e) {
              throw new RuntimeException(e.getMessage());
          } catch (InstantiationException e) {
              throw new RuntimeException(e);
          } catch (IllegalAccessException e) {
              throw new RuntimeException(e);
          }
      }
  
  }