##### Coverage Report - org.webmacro.engine.UndefinedMacro

Classes in this File | Line Coverage | Branch Coverage | Complexity
UndefinedMacro |
60% | 6/10
N/A | N/A
| 1.2857142857142858;1.286

1 |  |
     /*
2 |  |
      * Copyright (C) 1998-2001 Semiotek Inc.  All Rights Reserved.
3 |  |
      *
4 |  |
      * Redistribution and use in source and binary forms, with or without
5 |  |
      * modification, are permitted under the terms of either of the following
6 |  |
      * Open Source licenses:
7 |  |
      *
8 |  |
      * The GNU General Public License, version 2, or any later version, as
9 |  |
      * published by the Free Software Foundation
10 |  |
      * (http://www.fsf.org/copyleft/gpl.html);
11 |  |
      *
12 |  |
      *  or
13 |  |
      *
14 |  |
      * The Semiotek Public License (http://webmacro.org/LICENSE.)
15 |  |
      *
16 |  |
      * This software is provided "as is", with NO WARRANTY, not even the
17 |  |
      * implied warranties of fitness to purpose, or merchantability. You
18 |  |
      * assume all risks and liabilities associated with its use.
19 |  |
      *
20 |  |
      * See www.webmacro.org for more information on the WebMacro project.
21 |  |
      */
22 |  |
23 |  |
     package org.webmacro.engine;
24 |  |
25 |  |
     import org.webmacro.Context;
26 |  |
     import org.webmacro.FastWriter;
27 |  |
     import org.webmacro.Macro;
28 |  |
     import org.webmacro.PropertyException;
29 |  |
     import org.webmacro.TemplateVisitor;
30 |  |
     import org.webmacro.Visitable;
31 |  |
32 |  |
     /**
33 |  |
      * Looks like a Macro, but really it's an undefined variable.
34 |  |
      */
35 |  |
     public final class UndefinedMacro implements Macro, Visitable
36 |  |
     {
37 |  |
38 | 2 |
         final static private UndefinedMacro _singleton = new UndefinedMacro();
39 |  |
40 |  |
         private UndefinedMacro ()
41 | 2 |
         {
42 | 2 |
         }
43 |  |
44 |  |
         static public UndefinedMacro getInstance ()
45 |  |
         {
46 | 8 |
             return _singleton;
47 |  |
         }
48 |  |
49 |  |
         public final String toString ()
50 |  |
         {
51 | 0 |
             throw new UnsupportedOperationException(
52 |  |
                     "Cannot invoke toString() on an undefined variable.");
53 |  |
         }
54 |  |
55 |  |
         public void accept (TemplateVisitor v)
56 |  |
         {
57 | 0 |
             v.visitString(toString());
58 | 0 |
         }
59 |  |
60 |  |
         /**
61 |  |
          * Returns the wrapped object, context is ignored.
62 |  |
          */
63 |  |
         public final Object evaluate (Context context)
64 |  |
         {
65 | 11038 |
             return _singleton;
66 |  |
         }
67 |  |
68 |  |
         public Object get (Object key)
69 |  |
         {
70 | 0 |
             return _singleton;
71 |  |
         }
72 |  |
73 |  |
         /**
74 |  |
          * Throws an exception -- cannot write an undefined.
75 |  |
          */
76 |  |
         public final void write (FastWriter out, Context context)
77 |  |
                 throws PropertyException
78 |  |
         {
79 | 4 |
             throw new PropertyException.UndefinedVariableException();
80 |  |
         }
81 |  |
     }