##### Coverage Report - org.jaxen.expr.DefaultFilterExpr

Classes in this File | Line Coverage | Branch Coverage | Complexity
DefaultFilterExpr |
50% |
43% |
| 1.8333333333333333;1.833

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultFilterExpr.java,v 1.16 2005/09/06 13:41:00 elharo Exp $
3 |  |
      * $Revision: 1.16 $
4 |  |
      * $Date: 2005/09/06 13:41:00 $
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:
14 |  |
      *
15 |  |
      * 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.
22 |  |
      *
23 |  |
      * 3. The name "Jaxen" must not be used to endorse or promote products
24 |  |
      *    derived from this software without prior written permission.  For
25 |  |
      *    written permission, please contact license@jaxen.org.
26 |  |
      *
27 |  |
      * 4. Products derived from this software may not be called "Jaxen", nor
28 |  |
      *    may "Jaxen" appear in their name, without prior written permission
29 |  |
      *    from the Jaxen Project Management (pm@jaxen.org).
30 |  |
      *
31 |  |
      * 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/>."
36 |  |
      * Alternatively, the acknowledgment may be graphical using the logos
37 |  |
      * available at http://www.jaxen.org/
38 |  |
      *
39 |  |
      * 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 |  |
      * ====================================================================
53 |  |
      * 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: DefaultFilterExpr.java,v 1.16 2005/09/06 13:41:00 elharo Exp $
60 |  |
      */
61 |  |
62 |  |
63 |  |
64 |  |
     package org.jaxen.expr;
65 |  |
66 |  |
     import java.util.ArrayList;
67 |  |
     import java.util.List;
68 |  |
     import org.jaxen.Context;
69 |  |
     import org.jaxen.JaxenException;
70 |  |
71 |  |
     /**
72 |  |
      * @deprecated this class will become non-public in the future;
73 |  |
      *     use the interface instead
74 |  |
      */
75 |  |
     public class DefaultFilterExpr extends DefaultExpr implements FilterExpr, Predicated
76 |  |
     {
77 |  |
         private Expr expr;
78 |  |
         private PredicateSet predicates;
79 |  |
80 |  |
         public DefaultFilterExpr(PredicateSet predicateSet)
81 | 30 |
         {
82 | 30 |
             this.predicates = predicateSet;
83 | 30 |
         }
84 |  |
85 |  |
         public DefaultFilterExpr(Expr expr, PredicateSet predicateSet)
86 | 13446 |
         {
87 | 13446 |
             this.expr       = expr;
88 | 13446 |
             this.predicates = predicateSet;
89 | 13446 |
         }
90 |  |
91 |  |
         public void addPredicate(Predicate predicate)
92 |  |
         {
93 | 36 |
             this.predicates.addPredicate( predicate );
94 | 36 |
         }
95 |  |
96 |  |
         public List getPredicates()
97 |  |
         {
98 | 0 |
             return this.predicates.getPredicates();
99 |  |
         }
100 |  |
101 |  |
         public PredicateSet getPredicateSet()
102 |  |
         {
103 | 6 |
             return this.predicates;
104 |  |
         }
105 |  |
106 |  |
         public Expr getExpr()
107 |  |
         {
108 | 13368 |
             return this.expr;
109 |  |
         }
110 |  |
111 |  |
         public String toString()
112 |  |
         {
113 | 0 |
             return "[(DefaultFilterExpr): expr: " + expr + " predicates: " + predicates + " ]";
114 |  |
         }
115 |  |
116 |  |
         public String getText()
117 |  |
         {
118 | 0 |
             String text = "";
119 | 0 |
             if ( this.expr != null )
120 |  |
             {
121 | 0 |
                 text = this.expr.getText();
122 |  |
             }
123 | 0 |
             text += predicates.getText();
124 | 0 |
             return text;
125 |  |
         }
126 |  |
127 |  |
         public Expr simplify()
128 |  |
         {
129 | 13368 |
             this.predicates.simplify();
130 |  |
131 | 13368 |
             if ( this.expr != null )
132 |  |
             {
133 | 13368 |
                 this.expr = this.expr.simplify();
134 |  |
             }
135 |  |
136 | 13368 |
             if ( this.predicates.getPredicates().size() == 0 )
137 |  |
             {
138 | 13362 |
                 return getExpr();
139 |  |
             }
140 |  |
141 | 6 |
             return this;
142 |  |
         }
143 |  |
144 |  |
         /** Returns true if the current filter matches at least one of the context nodes
145 |  |
          */
146 |  |
         public boolean asBoolean(Context context) throws JaxenException
147 |  |
         {
148 | 0 |
             Object results = null;
149 | 0 |
             if ( expr != null )
150 |  |
             {
151 | 0 |
                 results = expr.evaluate( context );
152 |  |
             }
153 |  |
             else
154 |  |
             {
155 | 0 |
                 List nodeSet = context.getNodeSet();
156 | 0 |
                 ArrayList list = new ArrayList(nodeSet.size());
157 | 0 |
                 list.addAll( nodeSet );
158 | 0 |
                 results = list;
159 |  |
             }
160 |  |
161 | 0 |
             if ( results instanceof Boolean )
162 |  |
             {
163 | 0 |
                 Boolean b = (Boolean) results;
164 | 0 |
                 return b.booleanValue();
165 |  |
             }
166 | 0 |
             if ( results instanceof List )
167 |  |
             {
168 | 0 |
                 return getPredicateSet().evaluateAsBoolean(
169 |  |
                     (List) results, context.getContextSupport()
170 |  |
                 );
171 |  |
             }
172 |  |
173 | 0 |
             return false;
174 |  |
         }
175 |  |
176 |  |
         public Object evaluate(Context context) throws JaxenException
177 |  |
         {
178 | 6 |
             Object results = getExpr().evaluate( context );
179 |  |
180 | 6 |
             if ( results instanceof List )
181 |  |
             {
182 | 6 |
                 List newresults = getPredicateSet().evaluatePredicates( (List) results,
183 |  |
                                         context.getContextSupport() );
184 | 6 |
             results = newresults;
185 |  |
             }
186 |  |
187 | 6 |
             return results;
188 |  |
         }
189 |  |
         public void accept(Visitor visitor)
190 |  |
         {
191 | 0 |
             visitor.visit(this);
192 | 0 |
         }
193 |  |
     }