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1   package org.codehaus.groovy.control.messages;
2   
3   import java.io.PrintWriter;
4   
5   import org.codehaus.groovy.control.Janitor;
6   import org.codehaus.groovy.control.ProcessingUnit;
7   
8   
9   
10  /***
11   *  A class for error messages produced by the parser system.
12   *
13   *  @author <a href="mailto:cpoirier@dreaming.org">Chris Poirier</a>
14   *
15   *  @version $Id: ExceptionMessage.java,v 1.2 2004/07/10 03:31:41 bran Exp $
16   */
17  
18  public class ExceptionMessage extends Message
19  {
20      private Exception cause = null;   // The exception source of the message, if any
21      
22  
23      public ExceptionMessage( Exception cause )
24      {
25          this.cause = cause;
26      }
27      
28      
29     
30     /***
31      *  Returns the underlying Exception.
32      */
33  
34      public Exception getCause()
35      {
36          return this.cause;
37      }
38      
39  
40  
41     /***
42      *  Writes out a nicely formatted summary of the exception. 
43      */
44      
45      public void write( PrintWriter output, ProcessingUnit context, Janitor janitor )
46      {
47          String description = "General error during " + context.getPhaseDescription() + ": "; 
48          
49          String message = cause.getMessage();
50          if( message != null )
51          {
52              output.println( description + message );
53          }
54          else
55          {
56              output.println( description + cause );
57          }
58          output.println("");
59      }    
60      
61      
62  }
63  
64  
65