##### Coverage Report - org.jaxen.util.FollowingAxisIterator

Classes in this File | Line Coverage | Branch Coverage | Complexity
FollowingAxisIterator |
93% |
100% |
| 3.6666666666666665;3.667

1 |  |
     package org.jaxen.util;
2 |  |
3 |  |
     /*
4 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/util/FollowingAxisIterator.java,v 1.6 2005/06/28 13:44:44 elharo Exp $
5 |  |
      * $Revision: 1.6 $
6 |  |
      * $Date: 2005/06/28 13:44:44 $
7 |  |
      *
8 |  |
      * ====================================================================
9 |  |
      *
10 |  |
      * Copyright (C) 2000-2005 bob mcwhirter & James Strachan.
11 |  |
      * All rights reserved.
12 |  |
      *
13 |  |
      * Redistribution and use in source and binary forms, with or without
14 |  |
      * modification, are permitted provided that the following conditions
15 |  |
      * are met:
16 |  |
      *
17 |  |
      * 1. Redistributions of source code must retain the above copyright
18 |  |
      *    notice, this list of conditions, and the following disclaimer.
19 |  |
      *
20 |  |
      * 2. Redistributions in binary form must reproduce the above copyright
21 |  |
      *    notice, this list of conditions, and the disclaimer that follows
22 |  |
      *    these conditions in the documentation and/or other materials
23 |  |
      *    provided with the distribution.
24 |  |
      *
25 |  |
      * 3. The name "Jaxen" must not be used to endorse or promote products
26 |  |
      *    derived from this software without prior written permission.  For
27 |  |
      *    written permission, please contact license@jaxen.org.
28 |  |
      *
29 |  |
      * 4. Products derived from this software may not be called "Jaxen", nor
30 |  |
      *    may "Jaxen" appear in their name, without prior written permission
31 |  |
      *    from the Jaxen Project Management (pm@jaxen.org).
32 |  |
      *
33 |  |
      * In addition, we request (but do not require) that you include in the
34 |  |
      * end-user documentation provided with the redistribution and/or in the
35 |  |
      * software itself an acknowledgement equivalent to the following:
36 |  |
      *     "This product includes software developed by the
37 |  |
      *      Jaxen Project <http://www.jaxen.org/>."
38 |  |
      * Alternatively, the acknowledgment may be graphical using the logos
39 |  |
      * available at http://www.jaxen.org/
40 |  |
      *
41 |  |
      * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 |  |
      * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 |  |
      * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 |  |
      * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
45 |  |
      * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 |  |
      * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 |  |
      * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 |  |
      * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 |  |
      * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 |  |
      * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 |  |
      * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 |  |
      * SUCH DAMAGE.
53 |  |
      *
54 |  |
      * ====================================================================
55 |  |
      * This software consists of voluntary contributions made by many
56 |  |
      * individuals on behalf of the Jaxen Project and was originally
57 |  |
      * created by bob mcwhirter <bob@werken.com> and
58 |  |
      * James Strachan <jstrachan@apache.org>.  For more information on the
59 |  |
      * Jaxen Project, please see <http://www.jaxen.org/>.
60 |  |
      *
61 |  |
      * $Id: FollowingAxisIterator.java,v 1.6 2005/06/28 13:44:44 elharo Exp $
62 |  |
     */
63 |  |
64 |  |
     import java.util.Iterator;
65 |  |
     import java.util.NoSuchElementException;
66 |  |
67 |  |
     import org.jaxen.Navigator;
68 |  |
     import org.jaxen.UnsupportedAxisException;
69 |  |
     import org.jaxen.JaxenRuntimeException;
70 |  |
     import org.jaxen.JaxenConstants;
71 |  |
72 |  |
     public class FollowingAxisIterator implements Iterator
73 |  |
     {
74 |  |
         private Object contextNode;
75 |  |
76 |  |
         private Navigator navigator;
77 |  |
78 |  |
         private Iterator siblings;
79 |  |
80 |  |
         private Iterator currentSibling;
81 |  |
82 |  |
         public FollowingAxisIterator(Object contextNode,
83 |  |
                                      Navigator navigator) throws UnsupportedAxisException
84 | 156 |
         {
85 | 156 |
             this.contextNode = contextNode;
86 | 156 |
             this.navigator = navigator;
87 | 156 |
             this.siblings = navigator.getFollowingSiblingAxisIterator(contextNode);
88 | 156 |
             this.currentSibling = JaxenConstants.EMPTY_ITERATOR;
89 | 156 |
         }
90 |  |
91 |  |
         private boolean goForward()
92 |  |
         {
93 | 942 |
             while ( ! siblings.hasNext() )
94 |  |
             {
95 | 366 |
                 if ( !goUp() )
96 |  |
                 {
97 | 150 |
                     return false;
98 |  |
                 }
99 |  |
             }
100 |  |
101 | 576 |
             Object nextSibling = siblings.next();
102 |  |
103 | 576 |
             this.currentSibling = new DescendantOrSelfAxisIterator(nextSibling, navigator);
104 |  |
105 | 576 |
             return true;
106 |  |
         }
107 |  |
108 |  |
         private boolean goUp()
109 |  |
         {
110 | 366 |
             if ( contextNode == null
111 |  |
                  ||
112 |  |
                  navigator.isDocument(contextNode) )
113 |  |
             {
114 | 24 |
                 return false;
115 |  |
             }
116 |  |
117 |  |
             try
118 |  |
             {
119 | 342 |
                 contextNode = navigator.getParentNode( contextNode );
120 |  |
121 | 342 |
                 if ( contextNode != null
122 |  |
                      &&
123 |  |
                      !navigator.isDocument(contextNode) )
124 |  |
                 {
125 | 216 |
                     siblings = navigator.getFollowingSiblingAxisIterator(contextNode);
126 | 216 |
                     return true;
127 |  |
                 }
128 |  |
                 else
129 |  |
                 {
130 | 126 |
                     return false;
131 |  |
                 }
132 |  |
             }
133 | 0 |
             catch (UnsupportedAxisException e)
134 |  |
             {
135 | 0 |
                 throw new JaxenRuntimeException(e);
136 |  |
             }
137 |  |
         }
138 |  |
139 |  |
         public boolean hasNext()
140 |  |
         {
141 | 4272 |
             while ( ! currentSibling.hasNext() )
142 |  |
             {
143 | 726 |
                 if ( ! goForward() )
144 |  |
                 {
145 | 150 |
                     return false;
146 |  |
                 }
147 |  |
             }
148 |  |
149 | 3546 |
             return true;
150 |  |
         }
151 |  |
152 |  |
         public Object next() throws NoSuchElementException
153 |  |
         {
154 | 1734 |
             if ( ! hasNext() )
155 |  |
             {
156 | 6 |
                 throw new NoSuchElementException();
157 |  |
             }
158 |  |
159 | 1728 |
             return currentSibling.next();
160 |  |
         }
161 |  |
162 |  |
         public void remove() throws UnsupportedOperationException
163 |  |
         {
164 | 6 |
             throw new UnsupportedOperationException();
165 |  |
         }
166 |  |
     }