Coverage Report - org.apache.commons.ognl.ASTTest
 
Classes in this File Line Coverage Branch Coverage Complexity
ASTTest
79%
38/48
71%
30/42
4.857
 
 1  
 package org.apache.commons.ognl;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  * http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import org.apache.commons.ognl.enhance.UnsupportedCompilationException;
 23  
 
 24  
 /**
 25  
  * $Id: ASTTest.java 1194869 2011-10-29 11:10:16Z mcucchiara $
 26  
  * @author Luke Blanshard (blanshlu@netscape.net)
 27  
  * @author Drew Davidson (drew@ognl.org)
 28  
  */
 29  
 class ASTTest
 30  
     extends ExpressionNode
 31  
 {
 32  
     public ASTTest( int id )
 33  
     {
 34  60
         super( id );
 35  60
     }
 36  
 
 37  
     public ASTTest( OgnlParser p, int id )
 38  
     {
 39  0
         super( p, id );
 40  0
     }
 41  
 
 42  
     protected Object getValueBody( OgnlContext context, Object source )
 43  
         throws OgnlException
 44  
     {
 45  114
         Object test = children[0].getValue( context, source );
 46  114
         int branch = OgnlOps.booleanValue( test ) ? 1 : 2;
 47  114
         return children[branch].getValue( context, source );
 48  
     }
 49  
 
 50  
     protected void setValueBody( OgnlContext context, Object target, Object value )
 51  
         throws OgnlException
 52  
     {
 53  0
         Object test = children[0].getValue( context, target );
 54  0
         int branch = OgnlOps.booleanValue( test ) ? 1 : 2;
 55  0
         children[branch].setValue( context, target, value );
 56  0
     }
 57  
 
 58  
     public String getExpressionOperator( int index )
 59  
     {
 60  0
         return ( index == 1 ) ? "?" : ":";
 61  
     }
 62  
 
 63  
     public String toGetSourceString( OgnlContext context, Object target )
 64  
     {
 65  31
         if ( target == null )
 66  
         {
 67  4
             throw new UnsupportedCompilationException( "evaluation resulted in null expression." );
 68  
         }
 69  
         
 70  27
         if ( children.length != 3 )
 71  
         {
 72  0
             throw new UnsupportedCompilationException( "Can only compile test expressions with two children."
 73  
                 + children.length );
 74  
         }
 75  
         
 76  27
         String result = "";
 77  
 
 78  
         try
 79  
         {
 80  
 
 81  27
             String first = OgnlRuntime.getChildSource( context, target, children[0] );
 82  26
             if ( !OgnlRuntime.isBoolean( first ) && !context.getCurrentType().isPrimitive() )
 83  
             {
 84  7
                 first = OgnlRuntime.getCompiler( context ).createLocalReference( context, first, context.getCurrentType() );
 85  
             }
 86  
             
 87  26
             if ( ExpressionNode.class.isInstance( children[0] ) )
 88  
             {
 89  5
                 first = "(" + first + ")";
 90  
             }
 91  
 
 92  26
             String second = OgnlRuntime.getChildSource( context, target, children[1] );
 93  26
             Class secondType = context.getCurrentType();
 94  
 
 95  26
             if ( !OgnlRuntime.isBoolean( second ) && !context.getCurrentType().isPrimitive() )
 96  
             {
 97  22
                 second = OgnlRuntime.getCompiler( context ).createLocalReference( context, second, context.getCurrentType() );
 98  
             }
 99  
             
 100  25
             if ( ExpressionNode.class.isInstance( children[1] ) )
 101  
             {
 102  1
                 second = "(" + second + ")";
 103  
             }
 104  
 
 105  25
             String third = OgnlRuntime.getChildSource( context, target, children[2] );
 106  24
             Class thirdType = context.getCurrentType();
 107  
 
 108  24
             if ( !OgnlRuntime.isBoolean( third ) && !context.getCurrentType().isPrimitive() )
 109  
             {
 110  20
                 third = OgnlRuntime.getCompiler( context ).createLocalReference( context, third, context.getCurrentType() );
 111  
             
 112  
             }
 113  
             
 114  22
             if ( ExpressionNode.class.isInstance( children[2] ) )
 115  
             {
 116  0
                 third = "(" + third + ")";
 117  
             }
 118  
 
 119  22
             boolean mismatched =
 120  
                 ( secondType.isPrimitive( ) && !thirdType.isPrimitive( ) ) || ( !secondType.isPrimitive( )
 121  
                     && thirdType.isPrimitive( ) );
 122  
 
 123  22
             result += "org.apache.commons.ognl.OgnlOps.booleanValue(" + first + ")";
 124  
 
 125  22
             result += " ? ";
 126  
 
 127  22
             result += ( mismatched ? " ($w) " : "" ) + second;
 128  22
             result += " : ";
 129  
 
 130  22
             result += ( mismatched ? " ($w) " : "" ) + third;
 131  
 
 132  22
             context.setCurrentObject( target );
 133  22
             context.setCurrentType( mismatched ? Object.class : secondType );
 134  
 
 135  22
             return result;
 136  
 
 137  
         }
 138  3
         catch ( NullPointerException e )
 139  
         {
 140  
 
 141  
             // expected to happen in some instances
 142  3
             throw new UnsupportedCompilationException( "evaluation resulted in null expression." );
 143  
         }
 144  2
         catch ( Throwable t )
 145  
         {
 146  2
             throw OgnlOps.castToRuntime( t );
 147  
         }
 148  
     }
 149  
     
 150  
     public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data )
 151  
         throws OgnlException
 152  
     {
 153  0
         return visitor.visit( this, data );
 154  
     }
 155  
 }