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;
  
  import org.json.JSONObject;
  
  /**
   * HTTP session.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.0.0.0, Nov 3, 2019
   * @since 3.0.0
   */
  public class Session {
  
      public static final String LATKE_SESSION_ID = "LATKE_SESSION_ID";
  
      private final String id;
  
      public Session(final String id) {
          this.id = id;
      }
  
      public String getAttribute(final String name) {
          String ret = null;
          final JSONObject session = Sessions.CACHE.get(id);
          if (null == session) {
              return null;
          }
  
          if (session.has(name)) {
              ret = session.optString(name);
          }
  
          return ret;
      }
  
      public void setAttribute(final String name, final String value) {
          final JSONObject session = Sessions.CACHE.get(id);
          if (null == session) {
              return;
          }
  
          session.put(name, value);
          Sessions.CACHE.put(id, session);
      }
  
      public String getId() {
          return id;
      }
  }
  