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1   /* 
2    * Copyright (c) 2007, Fraunhofer-Gesellschaft
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 are
7    * met:
8    * 
9    * (1) Redistributions of source code must retain the above copyright
10   *     notice, this list of conditions and the disclaimer at the end.
11   *     Redistributions in binary form must reproduce the above copyright
12   *     notice, this list of conditions and the following disclaimer in
13   *     the documentation and/or other materials provided with the
14   *     distribution.
15   * 
16   * (2) Neither the name of Fraunhofer nor the names of its
17   *     contributors may be used to endorse or promote products derived
18   *     from this software without specific prior written permission.
19   * 
20   * DISCLAIMER
21   * 
22   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33   *  
34   */
35  package org.ogf.graap.wsag.server.monitoring;
36  
37  /**
38   * IServiceTermMonitor
39   * 
40   * Implements a monitoring handler that updates the state of one or a set of service terms. The monitoring
41   * handler is invoked by the {@link MonitorableAgreement} for each monitoring interval. It implements the
42   * domain specific logic to retrieve the state of a particular service term.
43   * 
44   * @see MonitorableAgreement
45   * 
46   * @author Oliver Waeldrich
47   * 
48   */
49  public interface IServiceTermMonitoringHandler
50  {
51  
52      /**
53       * The monitoring handler implements the domain specific logic to retrieve the state of a particular
54       * service term (or a set of service terms). The service term states can be retrieved via the monitoring
55       * context. the monitoring context can also be used to store and access variables from different
56       * monitoring handlers and store the over multiple invocations.
57       * 
58       * @param monitoringContext
59       *            the monitoring context
60       * 
61       * @throws Exception
62       *             Indicates an error in the monitoring handler. The agreement states will not be updated
63       *             during this monitoring cycle.
64       */
65      void monitor( IMonitoringContext monitoringContext ) throws Exception;
66  
67      /*
68       * TODO the monitoring handler should have a method
69       * IServiceTermMonitoringHandler#initialize(IMonitoringContext)
70       */
71  }