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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 1.3 2005/01/26 19:09:05 jstrachan Exp $
16   */
17  
18  public class ExceptionMessage extends Message
19  {
20      protected static final boolean verbose = true;
21  
22      private Exception cause = null;   // The exception source of the message, if any
23      
24  
25      public ExceptionMessage( Exception cause )
26      {
27          this.cause = cause;
28      }
29      
30      
31     
32     /***
33      *  Returns the underlying Exception.
34      */
35  
36      public Exception getCause()
37      {
38          return this.cause;
39      }
40      
41  
42  
43     /***
44      *  Writes out a nicely formatted summary of the exception. 
45      */
46      
47      public void write( PrintWriter output, ProcessingUnit context, Janitor janitor )
48      {
49          String description = "General error during " + context.getPhaseDescription() + ": "; 
50          
51          String message = cause.getMessage();
52          if( message != null )
53          {
54              output.println( description + message );
55          }
56          else
57          {
58              output.println( description + cause );
59          }
60          output.println("");
61  
62          if (verbose) {
63              cause.printStackTrace(output);
64          }
65      }
66      
67      
68  }
69  
70  
71