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1   /**
2    * Copyright (c) 2014, stateful.co
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met: 1) Redistributions of source code must retain the above
8    * copyright notice, this list of conditions and the following
9    * disclaimer. 2) Redistributions in binary form must reproduce the above
10   * copyright notice, this list of conditions and the following
11   * disclaimer in the documentation and/or other materials provided
12   * with the distribution. 3) Neither the name of the stateful.co nor
13   * the names of its contributors may be used to endorse or promote
14   * products derived from this software without specific prior written
15   * permission.
16   *
17   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
19   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21   * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
22   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28   * OF THE POSSIBILITY OF SUCH DAMAGE.
29   */
30  package co.stateful.spi;
31  
32  import com.jcabi.aspects.Immutable;
33  import java.io.IOException;
34  
35  /**
36   * User.
37   *
38   * @author Yegor Bugayenko (yegor@tpc2.com)
39   * @version $Id$
40   */
41  @Immutable
42  public interface User {
43  
44      /**
45       * This user exists.
46       * @return TRUE if this user logged in at least once through UI
47       */
48      boolean exists();
49  
50      /**
51       * Get his security token.
52       * @return Token
53       * @throws IOException If fails due to IO problem
54       */
55      String token() throws IOException;
56  
57      /**
58       * Refresh the token.
59       * @throws IOException If fails due to IO problem
60       */
61      void refresh() throws IOException;
62  
63      /**
64       * Get his counters.
65       * @return Counters
66       */
67      Counters counters();
68  
69      /**
70       * Get his locks.
71       * @return Locks
72       * @since 1.1
73       */
74      Locks locks();
75  
76  }