##### Coverage Report - org.jaxen.function.ext.LowerFunction

Classes in this File | Line Coverage | Branch Coverage | Complexity
LowerFunction |
85% |
100% |
| 3.5;3.5

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/function/ext/LowerFunction.java,v 1.10 2005/06/28 13:44:45 elharo Exp $
3 |  |
      * $Revision: 1.10 $
4 |  |
      * $Date: 2005/06/28 13:44:45 $
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:
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      *
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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.
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      *
23 |  |
      * 3. The name "Jaxen" must not be used to endorse or promote products
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      *    derived from this software without prior written permission.  For
25 |  |
      *    written permission, please contact license@jaxen.org.
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      *
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      * 4. Products derived from this software may not be called "Jaxen", nor
28 |  |
      *    may "Jaxen" appear in their name, without prior written permission
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      *    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
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      * 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: LowerFunction.java,v 1.10 2005/06/28 13:44:45 elharo Exp $
60 |  |
      */
61 |  |
62 |  |
     package org.jaxen.function.ext;
63 |  |
64 |  |
     import java.util.List;
65 |  |
     import java.util.Locale;
66 |  |
67 |  |
     import org.jaxen.Context;
68 |  |
     import org.jaxen.FunctionCallException;
69 |  |
     import org.jaxen.Navigator;
70 |  |
     import org.jaxen.function.StringFunction;
71 |  |
72 |  |
     /**
73 |  |
      * <p><code><i>string</i> lower-case(<i>string</i>)</code>
74 |  |
      *
75 |  |
      * This function can take a second parameter of the
76 |  |
      * <code>Locale</code> to use for the String conversion.
77 |  |
      * </p>
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      *
79 |  |
      * <p>
80 |  |
      * For example
81 |  |
      *
82 |  |
      * <code>lower-case( /foo/bar )</code>
83 |  |
      * <code>lower-case( /foo/@name, $myLocale )</code>
84 |  |
      * </p>
85 |  |
      *
86 |  |
      * @author mark wilson (markw@wilsoncom.de)
87 |  |
      * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
88 |  |
      */
89 | 288 |
     public class LowerFunction extends LocaleFunctionSupport
90 |  |
     {
91 |  |
92 |  |
         public Object call(Context context,
93 |  |
                            List args) throws FunctionCallException
94 |  |
         {
95 | 24 |
             Navigator navigator = context.getNavigator();
96 | 24 |
             int size = args.size();
97 | 24 |
             if (size > 0)
98 |  |
             {
99 | 24 |
                 Object text = args.get(0);
100 | 24 |
                 Locale locale = null;
101 | 24 |
                 if (size > 1)
102 |  |
                 {
103 | 0 |
                     locale = getLocale( args.get(1), navigator );
104 |  |
                 }
105 | 24 |
                 return evaluate( text, locale, navigator );
106 |  |
             }
107 | 0 |
             throw new FunctionCallException( "lower-case() requires at least one argument." );
108 |  |
         }
109 |  |
110 |  |
         /**
111 |  |
          * Converts the given string value to lower case using an optional Locale
112 |  |
          *
113 |  |
          * @param strArg the value which gets converted to a String
114 |  |
          * @param locale the Locale to use for the conversion or null
115 |  |
          *        English should be used
116 |  |
          * @param nav the Navigator to use
117 |  |
          */
118 |  |
         public static String evaluate(Object strArg,
119 |  |
                                       Locale locale,
120 |  |
                                       Navigator nav)
121 |  |
         {
122 |  |
123 | 24 |
             String str   = StringFunction.evaluate( strArg,
124 |  |
                                                     nav );
125 |  |
             // it might be possible to use the xml:lang attribute to
126 |  |
             // pick a default locale
127 | 24 |
             if (locale == null) locale = Locale.ENGLISH;
128 | 24 |
             return str.toLowerCase(locale);
129 |  |
130 |  |
         }
131 |  |
     }