/*
    * 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 javax.servlet.ServletContext;
  
  import COM.FutureTense.Interfaces.ICS;
  
  import com.fatwire.gst.foundation.controller.AppContext;
  import com.fatwire.gst.foundation.controller.action.ActionLocator;
  import com.fatwire.gst.foundation.controller.action.ActionNameResolver;
  import com.fatwire.gst.foundation.controller.action.Factory;
  import com.fatwire.gst.foundation.controller.action.FactoryProducer;
  import com.fatwire.gst.foundation.controller.action.Injector;
  import com.fatwire.gst.foundation.controller.support.WebAppContext;
  
  /**
   * This is the WebAppContext with accessors to the ActionLocator,
   * ActionNameResolver and the Injector, with the companion FactoryProducer.
   * <p/>
   * Developer are expected to subclass this class for their own implementations.
   * In most cases they would only like to override {@link #getFactory(ICS)} for
   * their own Service factory.
   * 
   * @author Dolf Dijkstra
   * 
   */
  public class DefaultWebAppContext extends WebAppContext implements FactoryProducer {
  
      public DefaultWebAppContext(final ServletContext context) {
          super(context);
  
      }
  
      public DefaultWebAppContext(final ServletContext context, final AppContext parent) {
          super(context, parent);
  
      }
  
      public ActionLocator createActionLocator() {
          // this method is expected to be called only once during the lifecycle
          // of the WebAppContext, though more often does not need to be a
          // problem per se.
          final Injector injector = createInjector();
          final ActionLocator root = new RenderPageActionLocator(injector);
          final ClassActionLocator cal = new ClassActionLocator(root, injector);
          return cal;
  
      }
  
      public ActionNameResolver createActionNameResolver() {
          return new CommandActionNameResolver("action");
      }
  
      public Injector createInjector() {
          FactoryProducer fp = getBean("factoryProducer", FactoryProducer.class);
          return new DefaultAnnotationInjector(fp);
      }
  
      public FactoryProducer createFactoryProducer() {
          return this;
      }
  
      @Override
      public Factory getFactory(final ICS ics) {
          // called very often; once per request/pagelet, scoped per ICS context
          return new IcsBackedObjectFactoryTemplate(ics);
      }
  
  }