##### Coverage Report - org.jaxen.javabean.JavaBeanXPath

Classes in this File | Line Coverage | Branch Coverage | Complexity
JavaBeanXPath |
62% |
88% |
| 5.333333333333333;5.333

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/javabean/JavaBeanXPath.java,v 1.4 2005/06/28 13:44:46 elharo Exp $
3 |  |
      * $Revision: 1.4 $
4 |  |
      * $Date: 2005/06/28 13:44:46 $
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 |  |
      *
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      * 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).
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      *
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      * 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/>."
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      * Alternatively, the acknowledgment may be graphical using the logos
37 |  |
      * available at http://www.jaxen.org/
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      *
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      * 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 |  |
      * ====================================================================
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      * 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: JavaBeanXPath.java,v 1.4 2005/06/28 13:44:46 elharo Exp $
60 |  |
      */
61 |  |
62 |  |
     package org.jaxen.javabean;
63 |  |
64 |  |
     import org.jaxen.Context;
65 |  |
     import org.jaxen.BaseXPath;
66 |  |
     import org.jaxen.JaxenException;
67 |  |
68 |  |
     import java.util.List;
69 |  |
     import java.util.ArrayList;
70 |  |
     import java.util.Collection;
71 |  |
     import java.util.Iterator;
72 |  |
73 |  |
     /** An XPath implementation for JavaBeans.
74 |  |
      *
75 |  |
      * <p>This is the main entry point for matching an XPath against a JavaBean
76 |  |
      * tree.  You create a compiled XPath object, then match it against
77 |  |
      * one or more context nodes using the {@link #selectNodes(Object)}
78 |  |
      * method, as in the following example:</p>
79 |  |
      *
80 |  |
      * <pre>
81 |  |
      * Node node = ...;
82 |  |
      * XPath path = new JavaBeanXPath("a/b/c");
83 |  |
      * List results = path.selectNodes(node);
84 |  |
      * </pre>
85 |  |
      *
86 |  |
      * @see BaseXPath
87 |  |
      *
88 |  |
      * @author <a href="mailto:bob@werken.com">bob mcwhirter</a>
89 |  |
      *
90 |  |
      * @version $Revision: 1.4 $
91 |  |
      */
92 |  |
     public class JavaBeanXPath extends BaseXPath
93 |  |
     {
94 |  |
         /** Construct given an XPath expression string.
95 |  |
          *
96 |  |
          *  @param xpathExpr The XPath expression.
97 |  |
          *
98 |  |
          *  @throws JaxenException if there is a syntax error while
99 |  |
          *          parsing the expression
100 |  |
          */
101 |  |
         public JavaBeanXPath(String xpathExpr) throws JaxenException
102 |  |
         {
103 | 6 |
             super( xpathExpr, DocumentNavigator.getInstance() );
104 | 6 |
         }
105 |  |
106 |  |
         protected Context getContext(Object node)
107 |  |
         {
108 | 6 |
             if ( node instanceof Context )
109 |  |
             {
110 | 0 |
                 return (Context) node;
111 |  |
             }
112 |  |
113 | 6 |
             if ( node instanceof Element )
114 |  |
             {
115 | 0 |
                 return super.getContext( node );
116 |  |
             }
117 |  |
118 | 6 |
             if ( node instanceof List )
119 |  |
             {
120 | 0 |
                 List newList = new ArrayList();
121 |  |
122 | 0 |
                 for ( Iterator listIter = ((List)node).iterator();
123 | 0 |
                       listIter.hasNext(); )
124 |  |
                 {
125 | 0 |
                     newList.add( new Element( null, "root", listIter.next() ) );
126 |  |
                 }
127 |  |
128 | 0 |
                 return super.getContext( newList );
129 |  |
             }
130 |  |
131 | 6 |
             return super.getContext( new Element( null, "root", node ) );
132 |  |
         }
133 |  |
134 |  |
         public Object evaluate(Object node)
135 |  |
             throws JaxenException
136 |  |
         {
137 | 6 |
             Object result = super.evaluate( node );
138 |  |
139 | 6 |
             if ( result instanceof Element )
140 |  |
             {
141 | 0 |
                 return ((Element)result).getObject();
142 |  |
             }
143 | 6 |
             else if ( result instanceof Collection )
144 |  |
             {
145 | 6 |
                 List newList = new ArrayList();
146 |  |
147 | 6 |
                 for ( Iterator listIter = ((Collection)result).iterator();
148 | 24 |
                       listIter.hasNext(); )
149 |  |
                 {
150 | 18 |
                     Object member = listIter.next();
151 |  |
152 | 18 |
                     if ( member instanceof Element )
153 |  |
                     {
154 | 18 |
                         newList.add( ((Element)member).getObject() );
155 |  |
                     }
156 |  |
                     else
157 |  |
                     {
158 | 0 |
                         newList.add( member );
159 |  |
                     }
160 |  |
                 }
161 |  |
162 | 6 |
                 return newList;
163 |  |
             }
164 |  |
165 | 0 |
             return result;
166 |  |
         }
167 |  |
     }