1 /*
2 * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultProcessingInstructionNodeStep.java,v 1.18 2007/01/06 12:21:12 elharo Exp $
3 * $Revision: 1.18 $
4 * $Date: 2007/01/06 12:21:12 $
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: DefaultProcessingInstructionNodeStep.java,v 1.18 2007/01/06 12:21:12 elharo Exp $
46 */
47
48
49
50 package org.jaxen.expr;
51
52 import org.jaxen.ContextSupport;
53 import org.jaxen.Navigator;
54 import org.jaxen.expr.iter.IterableAxis;
55
56 /***
57 * @deprecated this class will become non-public in the future;
58 * use the interface instead
59 */
60 public class DefaultProcessingInstructionNodeStep extends DefaultStep
61 implements ProcessingInstructionNodeStep
62 {
63 /***
64 *
65 */
66 private static final long serialVersionUID = -4825000697808126927L;
67 private String name;
68
69 public DefaultProcessingInstructionNodeStep(IterableAxis axis,
70 String name,
71 PredicateSet predicateSet)
72 {
73 super( axis, predicateSet );
74
75 this.name = name;
76 }
77
78 public String getName()
79 {
80 return this.name;
81 }
82
83 public String getText()
84 {
85 StringBuffer buf = new StringBuffer();
86 buf.append(getAxisName());
87 buf.append("::processing-instruction(");
88 String name = getName();
89 if (name != null && name.length() != 0)
90 {
91 buf.append("'");
92 buf.append(name);
93 buf.append("'");
94 }
95 buf.append(")");
96 buf.append(super.getText());
97 return buf.toString();
98 }
99
100 public boolean matches(Object node,
101 ContextSupport support)
102 {
103
104 Navigator nav = support.getNavigator();
105 if ( nav.isProcessingInstruction( node ) )
106 {
107 String name = getName();
108 if ( name == null || name.length() == 0 )
109 {
110 return true;
111 }
112 else
113 {
114 return name.equals( nav.getProcessingInstructionTarget( node ) );
115 }
116 }
117
118 return false;
119
120 }
121
122 }