SchedulerException


1   package de.webman.util.scheduler;
2   
3   import java.io.PrintStream  ;
4   import java.io.PrintWriter  ;
5   
6   
7   /**
8    * This exception is thrown if to indicate failure of a SchedulerService
9    * configuration or execution.
10   * 
11   * @author <a HREF="mailto:gregor@webman.de">Gregor Klinke</a>
12   * @version $Revision: 1.2 $
13   **/
14  public class SchedulerException
15      extends Exception  
16  {
17      /* $Id: SchedulerException.java,v 1.2 2002/04/12 12:45:53 gregor Exp $ */
18  
19      /**
20       * The cause for this exception.
21       */
22      private Exception   cause = null;
23  
24      /**
25       * constructor
26       **/
27      public SchedulerException () {
28      }
29  
30      public SchedulerException (String   s) {
31          super(s);
32      }
33      
34      public SchedulerException (Exception   _cause) {
35          cause = _cause;
36      }
37      
38      
39      /**
40       * Returns the error message of this exception.
41       *
42       * @return the error message of this exception.
43       */
44      public String   getMessage () {
45          return (cause == null
46                  ? super.getMessage()
47                  : cause.getMessage());
48      }
49      
50      /**
51       * Returns the localized description of this exception.
52       *
53       * @return the localized description of this exception.
54       */
55      public String   getLocalizedMessage () {
56          return (cause == null
57                  ? super.getLocalizedMessage()
58                  : cause.getLocalizedMessage());
59      }
60      
61      /**
62       * Returns the short description of this exception.
63       *
64       * @return the short description of this exception.
65       */
66      public String   toString ()
67      {
68          return (cause == null
69                  ? super.toString()
70                  : cause.toString());
71      }
72      
73      /**
74       * Prints this exception and its backtrace to the
75       * standard error stream.
76       */
77      public void printStackTrace ()
78      {
79          if (cause == null) {
80              super.printStackTrace();
81          }
82          else {
83              printStackTrace();
84          }
85      }
86      
87      /**
88       * Prints this exception and its backtrace to the
89       * given print stream.
90       *
91       * @param ps the print stream.
92       */
93      public void printStackTrace (PrintStream   ps)
94      {
95          if (cause == null) {
96              super.printStackTrace(ps);
97          }
98          else {
99              cause.printStackTrace(ps);
100         }
101     }
102 
103     /**
104      * Prints this exception and its backtrace to the
105      * given print writer.
106      *
107      * @param ps the print writer.
108      */
109     public void printStackTrace (PrintWriter   pw)
110     {
111         if (cause == null) {
112             super.printStackTrace(pw);
113         }
114         else {
115             cause.printStackTrace(pw);
116         }
117     }
118 }
119
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