Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DefaultPathExpr |
|
| 3.0;3 |
1 | /* | |
2 | * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultPathExpr.java,v 1.16 2006/11/30 18:49:26 elharo Exp $ | |
3 | * $Revision: 1.16 $ | |
4 | * $Date: 2006/11/30 18:49:26 $ | |
5 | * | |
6 | * ==================================================================== | |
7 | * | |
8 | * Copyright 2000-2002 bob mcwhirter & James Strachan. | |
9 | * All rights reserved. | |
10 | * | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions are | |
14 | * met: | |
15 | * | |
16 | * * Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * | |
19 | * * Redistributions in binary form must reproduce the above copyright | |
20 | * notice, this list of conditions and the following disclaimer in the | |
21 | * documentation and/or other materials provided with the distribution. | |
22 | * | |
23 | * * Neither the name of the Jaxen Project nor the names of its | |
24 | * contributors may be used to endorse or promote products derived | |
25 | * from this software without specific prior written permission. | |
26 | * | |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
28 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
29 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
30 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | |
31 | * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
32 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
33 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
34 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
35 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
36 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
37 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
38 | * | |
39 | * ==================================================================== | |
40 | * This software consists of voluntary contributions made by many | |
41 | * individuals on behalf of the Jaxen Project and was originally | |
42 | * created by bob mcwhirter <bob@werken.com> and | |
43 | * James Strachan <jstrachan@apache.org>. For more information on the | |
44 | * Jaxen Project, please see <http://www.jaxen.org/>. | |
45 | * | |
46 | * $Id: DefaultPathExpr.java,v 1.16 2006/11/30 18:49:26 elharo Exp $ | |
47 | */ | |
48 | ||
49 | package org.jaxen.expr; | |
50 | ||
51 | ||
52 | import org.jaxen.Context; | |
53 | import org.jaxen.JaxenException; | |
54 | ||
55 | ||
56 | class DefaultPathExpr extends DefaultExpr implements PathExpr { | |
57 | ||
58 | private static final long serialVersionUID = -6593934674727004281L; | |
59 | private Expr filterExpr; | |
60 | private LocationPath locationPath; | |
61 | ||
62 | DefaultPathExpr(Expr filterExpr, | |
63 | 14816 | LocationPath locationPath) { |
64 | 14816 | this.filterExpr = filterExpr; |
65 | 14816 | this.locationPath = locationPath; |
66 | 14816 | } |
67 | ||
68 | public Expr getFilterExpr() { | |
69 | 53942 | return this.filterExpr; |
70 | } | |
71 | ||
72 | ||
73 | public void setFilterExpr(Expr filterExpr) { | |
74 | 9434 | this.filterExpr = filterExpr; |
75 | 9434 | } |
76 | ||
77 | ||
78 | public LocationPath getLocationPath() { | |
79 | 45828 | return this.locationPath; |
80 | } | |
81 | ||
82 | ||
83 | public String toString() { | |
84 | 2 | if (getLocationPath() != null) { |
85 | 2 | return "[(DefaultPathExpr): " + getFilterExpr() + ", " + getLocationPath() + "]"; |
86 | } | |
87 | ||
88 | 0 | return "[(DefaultPathExpr): " + getFilterExpr() + "]"; |
89 | } | |
90 | ||
91 | ||
92 | public String getText() { | |
93 | 50 | StringBuffer buf = new StringBuffer(); |
94 | ||
95 | 50 | if (getFilterExpr() != null) { |
96 | 50 | buf.append(getFilterExpr().getText()); |
97 | } | |
98 | ||
99 | 50 | if (getLocationPath() != null) { |
100 | 50 | if (!getLocationPath().getSteps().isEmpty()) buf.append("/"); |
101 | 50 | buf.append(getLocationPath().getText()); |
102 | } | |
103 | ||
104 | 50 | return buf.toString(); |
105 | } | |
106 | ||
107 | ||
108 | public Expr simplify() { | |
109 | 14734 | if (getFilterExpr() != null) { |
110 | 9434 | setFilterExpr(getFilterExpr().simplify()); |
111 | } | |
112 | ||
113 | 14734 | if (getLocationPath() != null) { |
114 | 5406 | getLocationPath().simplify(); |
115 | } | |
116 | ||
117 | 14734 | if (getFilterExpr() == null && getLocationPath() == null) { |
118 | 0 | return null; |
119 | } | |
120 | ||
121 | ||
122 | 14734 | if (getLocationPath() == null) { |
123 | 9328 | return getFilterExpr(); |
124 | } | |
125 | ||
126 | 5406 | if (getFilterExpr() == null) { |
127 | 5300 | return getLocationPath(); |
128 | } | |
129 | ||
130 | 106 | return this; |
131 | } | |
132 | ||
133 | public Object evaluate(Context context) throws JaxenException { | |
134 | 54 | Object results = null; |
135 | 54 | Context pathContext = null; |
136 | 54 | if (getFilterExpr() != null) { |
137 | 54 | results = getFilterExpr().evaluate(context); |
138 | 52 | pathContext = new Context(context.getContextSupport()); |
139 | 52 | pathContext.setNodeSet(convertToList(results)); |
140 | } | |
141 | 52 | if (getLocationPath() != null) { |
142 | 52 | return getLocationPath().evaluate(pathContext); |
143 | } | |
144 | 0 | return results; |
145 | } | |
146 | ||
147 | } | |
148 |