UnknownAgent


1   /*
2    * Copyright (C) 2004 - 2006 ScalAgent Distributed Technologies
3    * Copyright (C) 1996 - 2000 BULL
4    * Copyright (C) 1996 - 2000 INRIA
5    *
6    * This library is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public
8    * License as published by the Free Software Foundation; either
9    * version 2.1 of the License, or any later version.
10   * 
11   * This library is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   * Lesser General Public License for more details.
15   * 
16   * You should have received a copy of the GNU Lesser General Public
17   * License along with this library; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19   * USA.
20   */
21  
22  package fr.dyade.aaa.agent;
23  
24  /**
25   * Notify by the engine to the sender of a notification when the target agent
26   * does not exist.
27   *
28   * @see Engine
29   */
30  public class UnknownAgent extends Notification {
31  
32    static final long serialVersionUID = 3125179672784868254L;
33  
34    /** The non-existent target agent id. */
35    public AgentId agent;
36    /** The failing notification that can not be delivered. */
37    public Notification not;
38  
39    /**
40     * Allocates a new <code>UnknownAgent</code> notification.
41     *
42     * @param agent   The non-existent target agent id.
43     * @param not     The failing notification that can not be delivered.
44     */
45    public UnknownAgent(AgentId agent, Notification not) {
46      this.agent = agent;
47      this.not = not;
48    }
49  
50    /**
51     * Appends a string image for this object to the StringBuffer parameter.
52     *
53     * @param output
54     *    buffer to fill in
55     * @return
56      <code>output</code> buffer is returned
57     */
58    public StringBuffer   toString(StringBuffer   output) {
59      output.append('(');
60      super.toString(output);
61      output.append(",agent=").append(agent);
62      output.append(",not=").append(not);
63      output.append(')');
64  
65      return output;
66    }
67  }
68  
69
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