/**
    * This file Copyright (c) 2010-2011 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.blossom.support;
  
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.ApplicationContextAware;
  import org.springframework.context.ApplicationEvent;
  import org.springframework.context.ApplicationListener;
  
  import info.magnolia.module.blossom.dispatcher.BlossomDispatcher;
  import info.magnolia.module.blossom.dispatcher.BlossomDispatcherAware;
  import info.magnolia.module.blossom.dispatcher.BlossomDispatcherInitializedEvent;
  
  /**
   * Abstract base class for beans that want to inspect other beans configured in the same bean factory. Will detect
   * lazy-init beans.
   *
   * @since 1.1.1
   */
  public abstract class AbstractBeanDetector implements ApplicationContextAware, ApplicationListener, BlossomDispatcherAware {
  
      private BlossomDispatcher dispatcher;
      private ApplicationContext applicationContext;
      private Class<?> type = Object.class;
  
      public ApplicationContext getApplicationContext() {
          return applicationContext;
      }
  
      @Override
      public void setApplicationContext(ApplicationContext applicationContext) {
          this.applicationContext = applicationContext;
      }
  
      @Override
      public void setBlossomDispatcher(BlossomDispatcher dispatcher) {
          this.dispatcher = dispatcher;
      }
  
      public Class<?> getType() {
          return type;
      }
  
      public void setType(Class<?> type) {
          this.type = type;
      }
  
      public void detectBeans() {
          String[] beanNames = applicationContext.getBeanNamesForType(type, true, true);
          for (String beanName : beanNames) {
              Class<?> type = applicationContext.getType(beanName);
              if (type != null && include(type, beanName)) {
                  Object bean = applicationContext.getBean(beanName);
                  onBeanDetection(bean, beanName);
              }
          }
      }
  
      @Override
      public void onApplicationEvent(ApplicationEvent event) {
          if (event instanceof BlossomDispatcherInitializedEvent && event.getSource() == dispatcher) {
              detectBeans();
          }
      }
  
      protected boolean include(Class<?> beanType, String beanName) {
          return true;
      }
 
     protected abstract void onBeanDetection(Object bean, String beanName);
 }