content: /*
   * Solo - A small and beautiful blogging system written in Java.
   * Copyright (c) 2010-present, b3log.org
   *
   * Solo is licensed under Mulan PSL v2.
   * You can use this software according to the terms and conditions of the Mulan PSL v2.
   * You may obtain a copy of Mulan PSL v2 at:
   *         http://license.coscl.org.cn/MulanPSL2
   * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
   * See the Mulan PSL v2 for more details.
   */
  package org.b3log.solo.event;
  
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.b3log.latke.event.AbstractEventListener;
  import org.b3log.latke.event.Event;
  import org.b3log.latke.ioc.BeanManager;
  import org.b3log.latke.ioc.Singleton;
  import org.b3log.latke.plugin.AbstractPlugin;
  import org.b3log.latke.plugin.PluginManager;
  import org.b3log.latke.repository.Transaction;
  import org.b3log.solo.repository.PluginRepository;
  import org.b3log.solo.service.PluginMgmtService;
  
  import java.util.List;
  
  /**
   * This listener is responsible for refreshing plugin after every loaded.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.0.0.2, Sep 25, 2018
   * @since 0.3.1
   */
  @Singleton
  public class PluginRefresher extends AbstractEventListener<List<AbstractPlugin>> {
  
      /**
       * Logger.
       */
      private static final Logger LOGGER = LogManager.getLogger(PluginRefresher.class);
  
      @Override
      public void action(final Event<List<AbstractPlugin>> event) {
          final List<AbstractPlugin> plugins = event.getData();
  
          LOGGER.log(Level.DEBUG, "Processing an event [type={}, data={}] in listener [className={}]",
                  event.getType(), plugins, PluginRefresher.class.getName());
  
          final BeanManager beanManager = BeanManager.getInstance();
          final PluginRepository pluginRepository = beanManager.getReference(PluginRepository.class);
  
          final Transaction transaction = pluginRepository.beginTransaction();
          try {
              final PluginMgmtService pluginMgmtService = beanManager.getReference(PluginMgmtService.class);
              pluginMgmtService.refresh(plugins);
              transaction.commit();
          } catch (final Exception e) {
              if (transaction.isActive()) {
                  transaction.rollback();
              }
  
              LOGGER.log(Level.ERROR, "Process plugin loaded event error", e);
          }
      }
  
      /**
       * Gets the event type {@linkplain PluginManager#PLUGIN_LOADED_EVENT}.
       *
       * @return event type
       */
      @Override
      public String getEventType() {
          return PluginManager.PLUGIN_LOADED_EVENT;
      }
  }
  