##### Coverage Report - org.jaxen.expr.DefaultStep

Classes in this File | Line Coverage | Branch Coverage | Complexity
DefaultStep |
97% |
100% |
| 1.3333333333333333;1.333

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultStep.java,v 1.20 2005/09/06 13:41:01 elharo Exp $
3 |  |
      * $Revision: 1.20 $
4 |  |
      * $Date: 2005/09/06 13:41:01 $
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: DefaultStep.java,v 1.20 2005/09/06 13:41:01 elharo Exp $
60 |  |
      */
61 |  |
     package org.jaxen.expr;
62 |  |
63 |  |
     import java.util.ArrayList;
64 |  |
     import java.util.Iterator;
65 |  |
     import java.util.List;
66 |  |
67 |  |
     import org.jaxen.Context;
68 |  |
     import org.jaxen.ContextSupport;
69 |  |
     import org.jaxen.JaxenException;
70 |  |
     import org.jaxen.UnsupportedAxisException;
71 |  |
     import org.jaxen.expr.iter.IterableAxis;
72 |  |
     import org.jaxen.saxpath.Axis;
73 |  |
74 |  |
     /**
75 |  |
      * @deprecated this class will become non-public in the future;
76 |  |
      *     use the interface instead
77 |  |
      */
78 |  |
     public abstract class DefaultStep implements Step
79 |  |
     {
80 |  |
         private IterableAxis axis;
81 |  |
         private PredicateSet predicates;
82 |  |
83 |  |
         public DefaultStep(IterableAxis axis, PredicateSet predicates)
84 | 16026 |
         {
85 | 16026 |
             this.axis = axis;
86 | 16026 |
             this.predicates = predicates;
87 | 16026 |
         }
88 |  |
89 |  |
         public void addPredicate(Predicate predicate)
90 |  |
         {
91 | 2310 |
             this.predicates.addPredicate(predicate);
92 | 2310 |
         }
93 |  |
94 |  |
         public List getPredicates()
95 |  |
         {
96 | 192 |
             return this.predicates.getPredicates();
97 |  |
         }
98 |  |
99 |  |
         public PredicateSet getPredicateSet()
100 |  |
         {
101 | 54282 |
             return this.predicates;
102 |  |
         }
103 |  |
104 |  |
         public int getAxis()
105 |  |
         {
106 | 37092 |
             return this.axis.value();
107 |  |
         }
108 |  |
109 |  |
         public IterableAxis getIterableAxis()
110 |  |
         {
111 | 103860 |
             return this.axis;
112 |  |
         }
113 |  |
114 |  |
         public String getAxisName()
115 |  |
         {
116 | 72 |
             return Axis.lookup(getAxis());
117 |  |
         }
118 |  |
119 |  |
         public String getText()
120 |  |
         {
121 | 72 |
             return this.predicates.getText();
122 |  |
         }
123 |  |
124 |  |
         public String toString()
125 |  |
         {
126 | 0 |
             return getIterableAxis() + " " + super.toString();
127 |  |
         }
128 |  |
129 |  |
         public void simplify()
130 |  |
         {
131 | 15642 |
             this.predicates.simplify();
132 | 15642 |
         }
133 |  |
134 |  |
         public Iterator axisIterator(Object contextNode, ContextSupport support)
135 |  |
             throws UnsupportedAxisException
136 |  |
         {
137 | 78330 |
             return getIterableAxis().iterator(contextNode, support);
138 |  |
         }
139 |  |
140 |  |
         public List evaluate(final Context context) throws JaxenException
141 |  |
         {
142 | 2958 |
             final List contextNodeSet  = context.getNodeSet();
143 | 2958 |
             final IdentitySet unique = new IdentitySet();
144 | 2958 |
             final int contextSize = contextNodeSet.size();
145 |  |
146 |  |
             // ???? try linked lists instead?
147 |  |
             // ???? initial size for these?
148 | 2958 |
             final ArrayList interimSet = new ArrayList();
149 | 2958 |
             final ArrayList newNodeSet = new ArrayList();
150 | 2958 |
             final ContextSupport support = context.getContextSupport();
151 |  |
152 |  |
             // ???? use iterator instead
153 | 10452 |
             for ( int i = 0 ; i < contextSize ; ++i )
154 |  |
             {
155 | 7500 |
                 Object eachContextNode = contextNodeSet.get( i );
156 |  |
157 |  |
158 |  |
                     /* See jaxen-106. Might be able to optimize this by doing
159 |  |
                      * specific matching for individual axes. For instance on namespace axis
160 |  |
                      * we should only get namespace nodes and on attribute axes we only get
161 |  |
                      * attribute nodes. Self and parent axes have single members.
162 |  |
                      * Children, descendant, ancestor, and sibling axes never
163 |  |
                      * see any attributes or namespaces
164 |  |
                      */
165 | 7500 |
                 Iterator axisNodeIter = axis.iterator(eachContextNode, support);
166 | 122322 |
                 while ( axisNodeIter.hasNext() )
167 |  |
                 {
168 | 114828 |
                     Object eachAxisNode = axisNodeIter.next();
169 | 114828 |
                     if ( ! unique.contains( eachAxisNode ) )
170 |  |
                     {
171 | 114780 |
                         if ( matches( eachAxisNode, support ) )
172 |  |
                         {
173 | 109692 |
                             unique.add( eachAxisNode );
174 | 109692 |
                             interimSet.add( eachAxisNode );
175 |  |
                         }
176 |  |
                     }
177 |  |
                 }
178 | 7494 |
                 newNodeSet.addAll(getPredicateSet().evaluatePredicates(
179 |  |
                                   interimSet, support ));
180 | 7494 |
                 interimSet.clear();
181 |  |
             }
182 | 2952 |
             return newNodeSet;
183 |  |
         }
184 |  |
185 |  |
     }