##### Coverage Report - org.webmacro.util.EnumIterator

Classes in this File | Line Coverage | Branch Coverage | Complexity
EnumIterator |
42% | 9/21
16% | 1/6
| 2.2;2.2

1 |  |
     /*
2 |  |
      * Copyright (C) 1998-2000 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 |  |
24 |  |
     package org.webmacro.util;
25 |  |
26 |  |
     import java.util.Enumeration;
27 |  |
     import java.util.Iterator;
28 |  |
     import java.util.NoSuchElementException;
29 |  |
30 |  |
31 |  |
     /**
32 |  |
      * Allow a Java 1.1 enumeration to be used as a JDK 1.2 style Iterator.
33 |  |
      */
34 |  |
     final public class EnumIterator implements Iterator
35 |  |
     {
36 |  |
37 |  |
         final Enumeration wrappedEnum;
38 |  |
         private boolean hasNext;
39 |  |
40 |  |
         /**
41 |  |
          * Construct an iterator given an enumeration.
42 |  |
          */
43 |  |
         public EnumIterator (Enumeration e)
44 | 2070 |
         {
45 | 2070 |
             wrappedEnum = e;
46 | 2070 |
             hasNext = e.hasMoreElements();
47 | 2070 |
         }
48 |  |
49 |  |
         /**
50 |  |
          * @return true if we have not yet reached the end of the enumeration.
51 |  |
          */
52 |  |
         final public boolean hasNext ()
53 |  |
         {
54 | 19616 |
             return hasNext;
55 |  |
         }
56 |  |
57 |  |
         /**
58 |  |
          * Advance the iterator and return the next value. Return null if we
59 |  |
          * reach the end of the enumeration.
60 |  |
          *
61 |  |
          * @throws NoSuchElementException
62 |  |
          */
63 |  |
         final public Object next ()
64 |  |
         {
65 | 17548 |
             if (!hasNext)
66 |  |
             {
67 | 0 |
                 throw new NoSuchElementException("advanced past end of list");
68 |  |
             }
69 | 17548 |
             Object o = wrappedEnum.nextElement();
70 | 17546 |
             hasNext = wrappedEnum.hasMoreElements();
71 | 17546 |
             return o;
72 |  |
         }
73 |  |
74 |  |
         /**
75 |  |
          * Unsupported.
76 |  |
          * @throws UnsupportedOperationException
77 |  |
          */
78 |  |
         final public void remove ()
79 |  |
         {
80 | 0 |
             throw new UnsupportedOperationException();
81 |  |
         }
82 |  |
83 |  |
         /**
84 |  |
          * Test harness
85 |  |
          */
86 |  |
         static public void main (String arg[])
87 |  |
         {
88 | 0 |
             java.util.Vector v = new java.util.Vector(arg.length);
89 | 0 |
             for (int i = 0; i < arg.length; i++)
90 |  |
             {
91 | 0 |
                 v.addElement(arg[i]);
92 |  |
             }
93 |  |
94 |  |
             try
95 |  |
             {
96 | 0 |
                 Iterator i = new EnumIterator(v.elements());
97 | 0 |
                 while (i.hasNext())
98 |  |
                 {
99 | 0 |
                     System.out.println("item: " + i.next());
100 |  |
                 }
101 |  |
             }
102 | 0 |
             catch (Exception e)
103 |  |
             {
104 | 0 |
                 e.printStackTrace();
105 | 0 |
             }
106 | 0 |
         }
107 |  |
     }
108 |  |