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

Classes in this File | Line Coverage | Branch Coverage | Complexity
DefaultEqualityExpr |
93% |
100% |
| 4.0;4

1 |  |
     /*
2 |  |
      * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultEqualityExpr.java,v 1.13 2005/06/28 13:44:44 elharo Exp $
3 |  |
      * $Revision: 1.13 $
4 |  |
      * $Date: 2005/06/28 13:44:44 $
5 |  |
      *
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      * ====================================================================
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      *
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      * 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
13 |  |
      * are met:
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      *
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      * 1. Redistributions of source code must retain the above copyright
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      *    notice, this list of conditions, and the following disclaimer.
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      *
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      * 2. Redistributions in binary form must reproduce the above copyright
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      *    notice, this list of conditions, and the disclaimer that follows
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      *    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:
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      *     "This product includes software developed by the
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      *      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
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      * 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
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      * 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
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      * 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/>.
58 |  |
      *
59 |  |
      * $Id: DefaultEqualityExpr.java,v 1.13 2005/06/28 13:44:44 elharo Exp $
60 |  |
      */
61 |  |
62 |  |
63 |  |
64 |  |
     package org.jaxen.expr;
65 |  |
66 |  |
     import java.util.Iterator;
67 |  |
     import java.util.List;
68 |  |
     import org.jaxen.Context;
69 |  |
     import org.jaxen.JaxenException;
70 |  |
     import org.jaxen.Navigator;
71 |  |
     import org.jaxen.function.BooleanFunction;
72 |  |
     import org.jaxen.function.NumberFunction;
73 |  |
     import org.jaxen.function.StringFunction;
74 |  |
75 |  |
     abstract class DefaultEqualityExpr extends DefaultTruthExpr implements EqualityExpr
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       {
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       DefaultEqualityExpr( Expr lhs, Expr rhs )
78 |  |
         {
79 | 1902 |
         super( lhs, rhs );
80 | 1902 |
         }
81 |  |
82 |  |
       public String toString()
83 |  |
         {
84 | 0 |
         return "[(DefaultEqualityExpr): " + getLHS() + ", " + getRHS() + "]";
85 |  |
         }
86 |  |
87 |  |
       public Object evaluate( Context context ) throws JaxenException
88 |  |
         {
89 | 17442 |
         Object lhsValue = getLHS().evaluate( context );
90 | 17442 |
         Object rhsValue = getRHS().evaluate( context );
91 |  |
92 | 17430 |
         if( lhsValue == null || rhsValue == null )
93 |  |
           {
94 | 0 |
           return Boolean.FALSE;
95 |  |
           }
96 |  |
97 | 17430 |
         Navigator nav = context.getNavigator();
98 |  |
99 | 17430 |
         if( bothAreSets( lhsValue, rhsValue ) )
100 |  |
           {
101 | 66 |
           return evaluateSetSet( (List) lhsValue, (List) rhsValue, nav );
102 |  |
           }
103 | 17364 |
         else if ( eitherIsSet( lhsValue, rhsValue ) )
104 |  |
           {
105 | 10926 |
           if ( isSet( lhsValue ) )
106 |  |
             {
107 | 10758 |
             return evaluateSetSet( (List) lhsValue, convertToList( rhsValue ), nav );
108 |  |
             }
109 |  |
           else
110 |  |
             {
111 | 168 |
             return evaluateSetSet( convertToList( lhsValue ), (List) rhsValue, nav );
112 |  |
             }
113 |  |
           }
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         else
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           {
116 | 6438 |
           return evaluateObjectObject( lhsValue, rhsValue, nav ) ? Boolean.TRUE : Boolean.FALSE;
117 |  |
           }
118 |  |
         }
119 |  |
120 |  |
       private Boolean evaluateSetSet( List lhsSet, List rhsSet, Navigator nav )
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         {
122 | 10992 |
         if( setIsEmpty( lhsSet ) || setIsEmpty( rhsSet ) )
123 |  |
           {
124 | 5340 |
           return Boolean.FALSE;
125 |  |
           }
126 |  |
127 | 5652 |
         for( Iterator lhsIterator = lhsSet.iterator(); lhsIterator.hasNext(); )
128 |  |
           {
129 | 6108 |
           Object lhs = lhsIterator.next();
130 |  |
131 | 6108 |
           for( Iterator rhsIterator = rhsSet.iterator(); rhsIterator.hasNext(); )
132 |  |
             {
133 | 6108 |
             Object rhs = rhsIterator.next();
134 |  |
135 | 6108 |
             if( evaluateObjectObject( lhs, rhs, nav ) )
136 |  |
               {
137 | 1116 |
               return Boolean.TRUE;
138 |  |
               }
139 |  |
             }
140 |  |
           }
141 |  |
142 | 4536 |
         return Boolean.FALSE;
143 |  |
         }
144 |  |
145 |  |
       private boolean evaluateObjectObject( Object lhs, Object rhs, Navigator nav )
146 |  |
         {
147 | 12546 |
         if( eitherIsBoolean( lhs, rhs ) )
148 |  |
           {
149 | 192 |
           return evaluateObjectObject( BooleanFunction.evaluate( lhs, nav ),
150 |  |
                                        BooleanFunction.evaluate( rhs, nav ) );
151 |  |
           }
152 | 12354 |
         else if( eitherIsNumber( lhs, rhs ) )
153 |  |
           {
154 | 666 |
           return evaluateObjectObject( NumberFunction.evaluate( lhs,
155 |  |
                                                                 nav ),
156 |  |
                                        NumberFunction.evaluate( rhs,
157 |  |
                                                                 nav ) );
158 |  |
           }
159 |  |
         else
160 |  |
           {
161 | 11688 |
           return evaluateObjectObject( StringFunction.evaluate( lhs,
162 |  |
                                                                 nav ),
163 |  |
                                        StringFunction.evaluate( rhs,
164 |  |
                                                                 nav ) );
165 |  |
           }
166 |  |
         }
167 |  |
168 |  |
       protected abstract boolean evaluateObjectObject( Object lhs, Object rhs );
169 |  |
       }