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

Classes in this File | Line Coverage | Branch Coverage | Complexity
PrecedingSiblingAxisIterator |
100% |
100% |
| 2.6;2.6

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/util/PrecedingSiblingAxisIterator.java,v 1.13 2005/06/28 13:44:44 elharo Exp $
3 |  |
      * $Revision: 1.13 $
4 |  |
      * $Date: 2005/06/28 13:44:44 $
5 |  |
      *
6 |  |
      * ====================================================================
7 |  |
      *
8 |  |
      * Copyright (C) 2000-2002 bob mcwhirter & James Strachan.
9 |  |
      * All rights reserved.
10 |  |
      *
11 |  |
      * Redistribution and use in source and binary forms, with or without
12 |  |
      * modification, are permitted provided that the following conditions
13 |  |
      * are met:
14 |  |
      *
15 |  |
      * 1. Redistributions of source code must retain the above copyright
16 |  |
      *    notice, this list of conditions, and the following disclaimer.
17 |  |
      *
18 |  |
      * 2. Redistributions in binary form must reproduce the above copyright
19 |  |
      *    notice, this list of conditions, and the disclaimer that follows
20 |  |
      *    these conditions in the documentation and/or other materials
21 |  |
      *    provided with the distribution.
22 |  |
      *
23 |  |
      * 3. The name "Jaxen" must not be used to endorse or promote products
24 |  |
      *    derived from this software without prior written permission.  For
25 |  |
      *    written permission, please contact license@jaxen.org.
26 |  |
      *
27 |  |
      * 4. Products derived from this software may not be called "Jaxen", nor
28 |  |
      *    may "Jaxen" appear in their name, without prior written permission
29 |  |
      *    from the Jaxen Project Management (pm@jaxen.org).
30 |  |
      *
31 |  |
      * In addition, we request (but do not require) that you include in the
32 |  |
      * end-user documentation provided with the redistribution and/or in the
33 |  |
      * software itself an acknowledgement equivalent to the following:
34 |  |
      *     "This product includes software developed by the
35 |  |
      *      Jaxen Project <http://www.jaxen.org/>."
36 |  |
      * Alternatively, the acknowledgment may be graphical using the logos
37 |  |
      * available at http://www.jaxen.org/
38 |  |
      *
39 |  |
      * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40 |  |
      * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41 |  |
      * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42 |  |
      * DISCLAIMED.  IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43 |  |
      * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 |  |
      * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45 |  |
      * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46 |  |
      * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47 |  |
      * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48 |  |
      * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49 |  |
      * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 |  |
      * SUCH DAMAGE.
51 |  |
      *
52 |  |
      * ====================================================================
53 |  |
      * This software consists of voluntary contributions made by many
54 |  |
      * individuals on behalf of the Jaxen Project and was originally
55 |  |
      * created by bob mcwhirter <bob@werken.com> and
56 |  |
      * James Strachan <jstrachan@apache.org>.  For more information on the
57 |  |
      * Jaxen Project, please see <http://www.jaxen.org/>.
58 |  |
      *
59 |  |
      * $Id: PrecedingSiblingAxisIterator.java,v 1.13 2005/06/28 13:44:44 elharo Exp $
60 |  |
      */
61 |  |
62 |  |
63 |  |
64 |  |
     package org.jaxen.util;
65 |  |
66 |  |
     import java.util.Iterator;
67 |  |
     import java.util.LinkedList;
68 |  |
     import java.util.NoSuchElementException;
69 |  |
70 |  |
     import org.jaxen.JaxenConstants;
71 |  |
     import org.jaxen.Navigator;
72 |  |
     import org.jaxen.UnsupportedAxisException;
73 |  |
74 |  |
     public class PrecedingSiblingAxisIterator implements Iterator
75 |  |
     {
76 |  |
         private Object    contextNode;
77 |  |
         private Navigator navigator;
78 |  |
79 |  |
         private Iterator  siblingIter;
80 |  |
         private Object    nextObj;
81 |  |
82 |  |
         public PrecedingSiblingAxisIterator(Object contextNode,
83 |  |
                                             Navigator navigator) throws UnsupportedAxisException
84 | 1608 |
         {
85 | 1608 |
             this.contextNode = contextNode;
86 | 1608 |
             this.navigator   = navigator;
87 |  |
88 | 1608 |
             init();
89 | 1608 |
             if ( siblingIter.hasNext() )
90 |  |
             {
91 | 456 |
                 this.nextObj = siblingIter.next();
92 |  |
             }
93 | 1608 |
         }
94 |  |
95 |  |
         private void init() throws UnsupportedAxisException
96 |  |
         {
97 |  |
98 | 1608 |
             Object parent = this.navigator.getParentNode( this.contextNode );
99 |  |
100 | 1608 |
             if ( parent != null )
101 |  |
             {
102 | 1128 |
                 Iterator childIter = this.navigator.getChildAxisIterator( parent );
103 | 1128 |
                 LinkedList siblings = new LinkedList();
104 |  |
105 | 2580 |
                 while ( childIter.hasNext() )
106 |  |
                 {
107 | 2580 |
                     Object eachChild = childIter.next();
108 | 2580 |
                     if ( eachChild.equals(this.contextNode) )
109 |  |
                     {
110 | 1128 |
                         break;
111 |  |
                     }
112 | 1452 |
                     siblings.addFirst( eachChild );
113 |  |
                 }
114 |  |
115 | 1128 |
                 this.siblingIter = siblings.iterator();
116 |  |
117 |  |
             }
118 |  |
             else {
119 | 480 |
                 this.siblingIter = JaxenConstants.EMPTY_ITERATOR;
120 |  |
             }
121 |  |
122 | 1608 |
         }
123 |  |
124 |  |
         public boolean hasNext()
125 |  |
         {
126 | 4614 |
             return ( this.nextObj != null );
127 |  |
         }
128 |  |
129 |  |
         public Object next() throws NoSuchElementException
130 |  |
         {
131 | 1458 |
             if ( ! hasNext() )
132 |  |
             {
133 | 6 |
                 throw new NoSuchElementException();
134 |  |
             }
135 |  |
136 | 1452 |
             Object obj = this.nextObj;
137 | 1452 |
             if ( siblingIter.hasNext() )
138 |  |
             {
139 | 996 |
                 this.nextObj = siblingIter.next();
140 |  |
             }
141 |  |
             else {
142 | 456 |
                 this.nextObj = null;
143 |  |
             }
144 | 1452 |
             return obj;
145 |  |
         }
146 |  |
147 |  |
         public void remove() throws UnsupportedOperationException
148 |  |
         {
149 | 6 |
             throw new UnsupportedOperationException();
150 |  |
         }
151 |  |
152 |  |
     }