content: /*
   * Latke - 一款以 JSON 为主的 Java Web 框架
   * Copyright (c) 2009-present, b3log.org
   *
   * Latke 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.latke.http.renderer;
  
  import org.apache.commons.lang3.StringUtils;
  import org.b3log.latke.http.RequestContext;
  import org.b3log.latke.ioc.BeanManager;
  import org.b3log.latke.plugin.AbstractPlugin;
  import org.b3log.latke.plugin.PluginManager;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * Abstract HTTP response renderer.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @author <a href="https://ld246.com/member/mainlove">Love Yao</a>
   * @version 1.0.0.1, Sep 29, 2018
   * @since 2.4.18
   */
  public abstract class AbstractResponseRenderer implements ResponseRenderer {
  
      /**
       * The id of this renderer.
       */
      private String rendererId;
  
      @Override
      public void preRender(final RequestContext context) {
          if (StringUtils.isBlank(rendererId)) {
              return;
          }
  
          final Set<AbstractPlugin> pSet = BeanManager.getInstance().getReference(PluginManager.class).getPlugins(rendererId);
          for (final AbstractPlugin plugin : pSet) {
              plugin.prePlug(context);
          }
      }
  
      @Override
      public void postRender(final RequestContext context) {
          if (StringUtils.isBlank(rendererId)) {
              return;
          }
  
          final Set<AbstractPlugin> pSet = BeanManager.getInstance().getReference(PluginManager.class).getPlugins(rendererId);
          for (final AbstractPlugin plugin : pSet) {
              plugin.plug(getRenderDataModel(), context);
          }
      }
  
      /**
       * Gets the data model.
       *
       * @return a new hash map
       */
      public Map<String, Object> getRenderDataModel() {
          return new HashMap<>();
      }
  
      /**
       * Sets the id of this renderer.
       *
       * @param rendererId the specified renderer id
       */
      public void setRendererId(final String rendererId) {
          this.rendererId = rendererId;
      }
  }
  