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1   /*
2    * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/pattern/NameTest.java,v 1.7 2006/02/05 21:47:42 elharo Exp $
3    * $Revision: 1.7 $
4    * $Date: 2006/02/05 21:47:42 $
5    *
6    * ====================================================================
7    *
8    * Copyright 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 are
13   * met:
14   * 
15   *   * Redistributions of source code must retain the above copyright
16   *     notice, this list of conditions and the following disclaimer.
17   * 
18   *   * Redistributions in binary form must reproduce the above copyright
19   *     notice, this list of conditions and the following disclaimer in the
20   *     documentation and/or other materials provided with the distribution.
21   * 
22   *   * Neither the name of the Jaxen Project nor the names of its
23   *     contributors may be used to endorse or promote products derived 
24   *     from this software without specific prior written permission.
25   * 
26   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
29   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
30   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37   *
38   * ====================================================================
39   * This software consists of voluntary contributions made by many 
40   * individuals on behalf of the Jaxen Project and was originally 
41   * created by bob mcwhirter <bob@werken.com> and 
42   * James Strachan <jstrachan@apache.org>.  For more information on the 
43   * Jaxen Project, please see <http://www.jaxen.org/>.
44   * 
45   * $Id: NameTest.java,v 1.7 2006/02/05 21:47:42 elharo Exp $
46   */
47  
48  package org.jaxen.pattern;
49  
50  import org.jaxen.Context;
51  import org.jaxen.Navigator;
52  
53  /*** <p><code>NameTest</code> tests for a node name.</p>
54    *
55    * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
56    * @version $Revision: 1.7 $
57    */
58  public class NameTest extends NodeTest {
59      
60      /*** The name to match against */
61      private String name;
62      
63      /*** The type of node to match - either attribute or element */
64      private short nodeType;
65      
66      public NameTest(String name, short nodeType)   
67      {
68          this.name = name;
69          this.nodeType = nodeType;
70      }
71          
72      /*** @return true if the pattern matches the given node
73        */
74      public boolean matches( Object node, Context context ) 
75      {
76          Navigator navigator = context.getNavigator();
77          if ( nodeType == Pattern.ELEMENT_NODE ) 
78          {
79              return navigator.isElement( node ) 
80                  && name.equals( navigator.getElementName( node ) );
81          }
82          else if ( nodeType == Pattern.ATTRIBUTE_NODE ) 
83          {
84              return navigator.isAttribute( node )
85                  && name.equals( navigator.getAttributeName( node ) );
86          }
87          else
88          {
89              if ( navigator.isElement( node ) )
90              {
91                  return name.equals( navigator.getElementName( node ) );
92              }
93              else
94              if ( navigator.isAttribute( node ) )
95              {
96                  return name.equals( navigator.getAttributeName( node ) );
97              }
98          }
99          return false;
100     }
101     
102     public double getPriority() 
103     {
104         return 0.0;
105     }
106 
107 
108     public short getMatchType() 
109     {
110         return nodeType;
111     }
112     
113     public String getText() 
114     {
115         if ( nodeType == Pattern.ATTRIBUTE_NODE ) 
116         {
117             return "@" + name;
118         }
119         else 
120         {
121             return name;
122         }
123     }
124     
125     public String toString()
126     {
127         return super.toString() + "[ name: " + name + " type: " + nodeType + " ]";
128     }
129 }