Coverage report

  %line %branch
org.apache.commons.jexl.parser.ASTLTNode
38% 
81% 

 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  * 
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  * 
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  * 
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 
 17  
 package org.apache.commons.jexl.parser;
 18  
 
 19  
 import org.apache.commons.jexl.JexlContext;
 20  
 import org.apache.commons.jexl.util.Coercion;
 21  
 
 22  
 /**
 23  
  *  LT : a < b
 24  
  *
 25  
  *  Follows A.3.6.1 of the JSTL 1.0 specification
 26  
  *
 27  
  *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
 28  
  *  @author <a href="mailto:proyal@apache.org">Peter Royal</a>
 29  
  *  @version $Id: ASTLTNode.java,v 1.5 2004/02/28 13:45:20 yoavs Exp $
 30  
  */
 31  
 public class ASTLTNode extends SimpleNode
 32  
 {
 33  
     public ASTLTNode(int id)
 34  
     {
 35  0
         super(id);
 36  0
     }
 37  
 
 38  
     public ASTLTNode(Parser p, int id)
 39  
     {
 40  36
         super(p, id);
 41  36
     }
 42  
 
 43  
     /** Accept the visitor. **/
 44  
     public Object jjtAccept(ParserVisitor visitor, Object data)
 45  
     {
 46  0
         return visitor.visit(this, data);
 47  
     }
 48  
 
 49  
     public Object value(JexlContext jc)
 50  
         throws Exception
 51  
     {
 52  
         /*
 53  
          * now get the values
 54  
          */
 55  
 
 56  36
         Object left = ( (SimpleNode) jjtGetChild(0)).value(jc);
 57  36
         Object right = ( (SimpleNode) jjtGetChild(1)).value(jc);
 58  
 
 59  36
         if( ( left == right ) || ( left == null ) || ( right == class="keyword">null ) )
 60  
         {
 61  0
             return Boolean.FALSE;
 62  
         }
 63  36
         else if( Coercion.isFloatingPoint( left ) || Coercion.isFloatingPoint( right ) )
 64  
         {
 65  0
             double leftDouble = Coercion.coerceDouble( left ).class="keyword">doubleValue();
 66  0
             double rightDouble = Coercion.coerceDouble( right ).class="keyword">doubleValue();
 67  
 
 68  0
             return leftDouble < rightDouble
 69  
                 ? Boolean.TRUE
 70  
                 : Boolean.FALSE;
 71  
         }
 72  36
         else if( Coercion.isNumberable( left ) || Coercion.isNumberable( right ) )
 73  
         {
 74  36
             long leftLong = Coercion.coerceLong( left ).class="keyword">longValue();
 75  36
             long rightLong = Coercion.coerceLong( right ).class="keyword">longValue();
 76  
 
 77  36
             return leftLong < rightLong
 78  
                 ? Boolean.TRUE
 79  
                 : Boolean.FALSE;
 80  
         }
 81  0
         else if( left instanceof String || right instanceof String )
 82  
         {
 83  0
             String leftString = left.toString();
 84  0
             String rightString = right.toString();
 85  
 
 86  0
             return leftString.compareTo( rightString ) < 0
 87  
                 ? Boolean.TRUE
 88  
                 : Boolean.FALSE;
 89  
         }
 90  0
         else if( left instanceof Comparable )
 91  
         {
 92  0
             return ( (Comparable)left ).compareTo( right ) < 0
 93  
                 ? Boolean.TRUE
 94  
                 : Boolean.FALSE;
 95  
         }
 96  0
         else if( right instanceof Comparable )
 97  
         {
 98  0
             return ( (Comparable)right ).compareTo( left ) > 0
 99  
                 ? Boolean.TRUE
 100  
                 : Boolean.FALSE;
 101  
         }
 102  
 
 103  0
         throw new Exception("Invalid comparison : LT ");
 104  
     }
 105  
 }

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