Coverage Report - org.jaxen.expr.DefaultEqualityExpr

Classes in this File Line Coverage Branch Coverage Complexity
DefaultEqualityExpr
93% 
100% 
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  
  *
 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: 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 
 76  
   {
 77  
   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  
       }  
 114  
     else
 115  
       {
 116  6438
       return evaluateObjectObject( lhsValue, rhsValue, nav ) ? Boolean.TRUE : Boolean.FALSE;
 117  
       }    
 118  
     }
 119  
   
 120  
   private Boolean evaluateSetSet( List lhsSet, List rhsSet, Navigator nav )
 121  
     {
 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  
   }