/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.shiro.samples.spring.config;
  
  import org.springframework.web.WebApplicationInitializer;
  import org.springframework.web.context.ContextLoaderListener;
  import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
  import org.springframework.web.filter.DelegatingFilterProxy;
  import org.springframework.web.servlet.DispatcherServlet;
  import org.springframework.web.util.Log4jConfigListener;
  
  import javax.servlet.DispatcherType;
  import javax.servlet.FilterRegistration;
  import javax.servlet.ServletContext;
  import javax.servlet.ServletRegistration;
  import java.util.EnumSet;
  
  /**
   * Initializes Spring Environment without the need for a web.xml
   */
  public class ServletApplicationInitializer implements WebApplicationInitializer {
  
      @Override
      public void onStartup(ServletContext container) {
  
          //now add the annotations
          AnnotationConfigWebApplicationContext appContext = getContext();
  
          // Manage the lifecycle of the root application context
          container.addListener(new ContextLoaderListener(appContext));
  
          container.addListener(new Log4jConfigListener());
  
          FilterRegistration.Dynamic shiroFilter = container.addFilter("shiroFilterFactoryBean", DelegatingFilterProxy.class);
          shiroFilter.setInitParameter("targetFilterLifecycle", "true");
          shiroFilter.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), false, "/*");
  
  
          ServletRegistration.Dynamic remotingDispatcher = container.addServlet("remoting", new DispatcherServlet(appContext));
          remotingDispatcher.setLoadOnStartup(1);
          remotingDispatcher.addMapping("/remoting/*");
  
  
          ServletRegistration.Dynamic dispatcher = container.addServlet("DispatcherServlet", new DispatcherServlet(appContext));
          dispatcher.setLoadOnStartup(1);
          dispatcher.addMapping("/");
  
      }
  
      private AnnotationConfigWebApplicationContext getContext() {
          AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
          context.setConfigLocation(getClass().getPackage().getName());
          return context;
      }
  
  }