##### Coverage Report - org.jaxen.function.SubstringAfterFunction

Classes in this File | Line Coverage | Branch Coverage | Complexity
SubstringAfterFunction |
100% |
100% |
| 2.6666666666666665;2.667

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/function/SubstringAfterFunction.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 |  |
      * ====================================================================
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      *
8 |  |
      * Copyright (C) 2000-2002 bob mcwhirter & James Strachan.
9 |  |
      * All rights reserved.
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      *
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      * Redistribution and use in source and binary forms, with or without
12 |  |
      * modification, are permitted provided that the following conditions
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      * 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 |  |
      *
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      * 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
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      *    provided with the distribution.
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      *
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      * 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
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      *    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
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      * end-user documentation provided with the redistribution and/or in the
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      * 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
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      * 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
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      * 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,
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      * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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      * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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      * SUCH DAMAGE.
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      *
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      * ====================================================================
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      * This software consists of voluntary contributions made by many
54 |  |
      * individuals on behalf of the Jaxen Project and was originally
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      * 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/>.
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      *
59 |  |
      * $Id: SubstringAfterFunction.java,v 1.10 2005/06/28 13:44:45 elharo Exp $
60 |  |
      */
61 |  |
62 |  |
63 |  |
     package org.jaxen.function;
64 |  |
65 |  |
     import java.util.List;
66 |  |
67 |  |
     import org.jaxen.Context;
68 |  |
     import org.jaxen.Function;
69 |  |
     import org.jaxen.FunctionCallException;
70 |  |
     import org.jaxen.Navigator;
71 |  |
72 |  |
     /**
73 |  |
      * <p><b>4.2</b> <code><i>string</i> substring-after(<i>string</i>,<i>string</i>)</code></p>
74 |  |
      *
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      *
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      * <blockquote src="http://www.w3.org/TR/xpath">
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      * The <b>substring-after</b> function returns the substring of the first argument string
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      * that follows the first occurrence of the second argument string in the first
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      * argument string, or the empty string if the first argument string does not contain the second argument string.
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      * For example, substring-after("1999/04/01","/") returns 04/01,
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      * and substring-after("1999/04/01","19") returns 99/04/01.
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      * </blockquote>
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      *
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      * @author bob mcwhirter (bob @ werken.com)
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      * @see <a href="http://www.w3.org/TR/xpath#function-substring-after" target="_top">Section 4.2 of the XPath Specification</a>
86 |  |
      */
87 |  |
     public class SubstringAfterFunction implements Function
88 |  |
     {
89 |  |
90 |  |
         /**
91 |  |
          * Create a new <code>SubstringAfterFunction</code> object.
92 |  |
          */
93 | 294 |
         public SubstringAfterFunction() {}
94 |  |
95 |  |
96 |  |
         /**
97 |  |
          * Returns the part of the string-value of the first item in <code>args</code>
98 |  |
          * that follows the string-value of the second item in <code>args</code>;
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          * or the empty string if the second string is not a substring of the first string.
100 |  |
          *
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          * @param context the context at the point in the
102 |  |
          *         expression when the function is called
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          * @param args a list that contains two items
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          *
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          * @return a <code>String</code> containing that
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          *     part of the string-value of the first item in <code>args</code>
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          *     that comes before the string-value of the second item in <code>args</code>
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          *
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          * @throws FunctionCallException if <code>args</code> does not have length two
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          */
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         public Object call(Context context,
112 |  |
                            List args) throws FunctionCallException
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         {
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             if (args.size() == 2)
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             {
116 | 54 |
                 return evaluate( args.get(0),
117 |  |
                                  args.get(1),
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                                  context.getNavigator() );
119 |  |
             }
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121 | 18 |
             throw new FunctionCallException( "substring-after() requires two arguments." );
122 |  |
         }
123 |  |
124 |  |
125 |  |
         /**
126 |  |
          * Returns the part of <code>strArg</code> that follows the first occurence
127 |  |
          * of <code>matchArg</code>; or the empty string if the
128 |  |
          * <code>strArg</code> does not contain <code>matchArg</code>
129 |  |
          *
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          * @param strArg the string from which the substring is extracted
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          * @param matchArg the string that marks the boundary of the substring
132 |  |
          * @param nav the <code>Navigator</code> used to calculate the string-values of
133 |  |
          *     the first two arguments
134 |  |
          *
135 |  |
          * @return a <code>String</code> containing
136 |  |
          *     the part of <code>strArg</code> that precedes the first occurence
137 |  |
          *     of <code>matchArg</code>
138 |  |
          *
139 |  |
          */
140 |  |
         public static String evaluate(Object strArg,
141 |  |
                                       Object matchArg,
142 |  |
                                       Navigator nav)
143 |  |
         {
144 | 54 |
             String str   = StringFunction.evaluate( strArg,
145 |  |
                                                     nav );
146 |  |
147 | 54 |
             String match = StringFunction.evaluate( matchArg,
148 |  |
                                                     nav );
149 |  |
150 | 54 |
             int loc = str.indexOf(match);
151 |  |
152 | 54 |
             if ( loc < 0 )
153 |  |
             {
154 | 18 |
                 return "";
155 |  |
             }
156 |  |
157 | 36 |
             return str.substring(loc+match.length());
158 |  |
         }
159 |  |
     }