IHealthCheck


1   /*************************************************************************
2    *                                                                       *
3    *  EJBCA: The OpenSource Certificate Authority                          *
4    *                                                                       *
5    *  This software is free software; you can redistribute it and/or       *
6    *  modify it under the terms of the GNU Lesser General Public           *
7    *  License as published by the Free Software Foundation; either         *
8    *  version 2.1 of the License, or any later version.                    *
9    *                                                                       *
10   *  See terms of license at gnu.org.                                     *
11   *                                                                       *
12   *************************************************************************/
13  
14  package org.ejbca.ui.web.pub.cluster;
15  
16  import javax.servlet.ServletConfig  ;
17  import javax.servlet.http.HttpServletRequest  ;
18  
19  
20  /**
21   * Inteface used for health polling purposes to see that everything is alive and ok.
22   * 
23   * @author Philip Vendil
24   * @version $Id: IHealthCheck.java,v 1.2 2006/02/08 07:31:48 anatom Exp $
25   */
26  public interface IHealthCheck {
27      
28      
29      /**
30       * Method used to initialize the health checker with parameters set
31       * in the web.xml file.
32       * 
33       *
34       */
35      public void init(ServletConfig   config);
36      
37      /**
38       * Method used to check the health of a specific application.
39       * @return Null if everyting is OK, othervise it should return a String as errormessage.
40       */
41      
42      public String   checkHealth(HttpServletRequest   request);
43  
44  }
45
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