Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
DefaultPathExpr |
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1 | /* |
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2 | * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultPathExpr.java,v 1.12 2005/06/28 13:44:44 elharo Exp $ |
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3 | * $Revision: 1.12 $ |
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4 | * $Date: 2005/06/28 13:44:44 $ |
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5 | * |
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6 | * ==================================================================== |
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7 | * |
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8 | * Copyright (C) 2000-2002 bob mcwhirter & James Strachan. |
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9 | * All rights reserved. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * |
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15 | * 1. Redistributions of source code must retain the above copyright |
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16 | * notice, this list of conditions, and the following disclaimer. |
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17 | * |
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18 | * 2. Redistributions in binary form must reproduce the above copyright |
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19 | * notice, this list of conditions, and the disclaimer that follows |
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20 | * these conditions in the documentation and/or other materials |
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21 | * provided with the distribution. |
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22 | * |
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23 | * 3. The name "Jaxen" must not be used to endorse or promote products |
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24 | * derived from this software without prior written permission. For |
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25 | * written permission, please contact license@jaxen.org. |
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26 | * |
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27 | * 4. Products derived from this software may not be called "Jaxen", nor |
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28 | * may "Jaxen" appear in their name, without prior written permission |
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29 | * from the Jaxen Project Management (pm@jaxen.org). |
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30 | * |
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31 | * In addition, we request (but do not require) that you include in the |
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32 | * end-user documentation provided with the redistribution and/or in the |
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33 | * software itself an acknowledgement equivalent to the following: |
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34 | * "This product includes software developed by the |
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35 | * Jaxen Project <http://www.jaxen.org/>." |
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36 | * Alternatively, the acknowledgment may be graphical using the logos |
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37 | * available at http://www.jaxen.org/ |
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38 | * |
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39 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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40 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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41 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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42 | * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT |
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43 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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45 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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46 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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47 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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48 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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49 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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50 | * SUCH DAMAGE. |
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51 | * |
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52 | * ==================================================================== |
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53 | * This software consists of voluntary contributions made by many |
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54 | * individuals on behalf of the Jaxen Project and was originally |
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55 | * created by bob mcwhirter <bob@werken.com> and |
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56 | * James Strachan <jstrachan@apache.org>. For more information on the |
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57 | * Jaxen Project, please see <http://www.jaxen.org/>. |
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58 | * |
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59 | * $Id: DefaultPathExpr.java,v 1.12 2005/06/28 13:44:44 elharo Exp $ |
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60 | */ |
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61 | ||
62 | package org.jaxen.expr; |
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63 | ||
64 | ||
65 | import org.jaxen.Context; |
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66 | import org.jaxen.JaxenException; |
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67 | ||
68 | ||
69 | class DefaultPathExpr extends DefaultExpr implements PathExpr { |
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70 | ||
71 | private Expr filterExpr; |
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72 | private LocationPath locationPath; |
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73 | ||
74 | DefaultPathExpr(Expr filterExpr, |
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75 | 23094 | LocationPath locationPath) { |
76 | 23094 | this.filterExpr = filterExpr; |
77 | 23094 | this.locationPath = locationPath; |
78 | 23094 | } |
79 | ||
80 | public Expr getFilterExpr() { |
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81 | 82236 | return this.filterExpr; |
82 | } |
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83 | ||
84 | ||
85 | public void setFilterExpr(Expr filterExpr) { |
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86 | 13368 | this.filterExpr = filterExpr; |
87 | 13368 | } |
88 | ||
89 | ||
90 | public LocationPath getLocationPath() { |
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91 | 74610 | return this.locationPath; |
92 | } |
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93 | ||
94 | ||
95 | public String toString() { |
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96 | 0 | if (getLocationPath() != null) { |
97 | 0 | return "[(DefaultPathExpr): " + getFilterExpr() + ", " + getLocationPath() + "]"; |
98 | } |
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99 | ||
100 | 0 | return "[(DefaultPathExpr): " + getFilterExpr() + "]"; |
101 | } |
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102 | ||
103 | ||
104 | public String getText() { |
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105 | 0 | StringBuffer buf = new StringBuffer(); |
106 | ||
107 | 0 | if (getFilterExpr() != null) { |
108 | 0 | buf.append(getFilterExpr().getText()); |
109 | } |
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110 | ||
111 | 0 | if (getLocationPath() != null) { |
112 | 0 | buf.append(getLocationPath().getText()); |
113 | } |
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114 | ||
115 | 0 | return buf.toString(); |
116 | } |
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117 | ||
118 | ||
119 | public Expr simplify() { |
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120 | 22848 | if (getFilterExpr() != null) { |
121 | 13368 | setFilterExpr(getFilterExpr().simplify()); |
122 | } |
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123 | ||
124 | 22848 | if (getLocationPath() != null) { |
125 | 9642 | getLocationPath().simplify(); |
126 | } |
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127 | ||
128 | 22848 | if (getFilterExpr() == null && getLocationPath() == null) { |
129 | 0 | return null; |
130 | } |
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131 | ||
132 | ||
133 | 22848 | if (getLocationPath() == null) { |
134 | 13206 | return getFilterExpr(); |
135 | } |
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136 | ||
137 | 9642 | if (getFilterExpr() == null) { |
138 | 9480 | return getLocationPath(); |
139 | } |
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140 | ||
141 | 162 | return this; |
142 | } |
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143 | ||
144 | public Object evaluate(Context context) throws JaxenException { |
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145 | 162 | Object results = null; |
146 | 162 | Context pathContext = null; |
147 | 162 | if (getFilterExpr() != null) { |
148 | 162 | results = getFilterExpr().evaluate(context); |
149 | 156 | pathContext = new Context(context.getContextSupport()); |
150 | 156 | pathContext.setNodeSet(convertToList(results)); |
151 | } |
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152 | 156 | if (getLocationPath() != null) { |
153 | 156 | return getLocationPath().evaluate(pathContext); |
154 | } |
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155 | 0 | return results; |
156 | } |
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157 | ||
158 | public void accept(Visitor visitor) { |
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159 | 0 | visitor.visit(this); |
160 | 0 | } |
161 | } |
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162 |