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package org.apache.commons.ognl; |
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import org.apache.commons.ognl.enhance.UnsupportedCompilationException; |
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public abstract class ComparisonExpression |
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extends BooleanExpression |
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{ |
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private static final long serialVersionUID = -5945855000509930682L; |
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public ComparisonExpression( int id ) |
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{ |
35 | 175 | super( id ); |
36 | 175 | } |
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public ComparisonExpression( OgnlParser p, int id ) |
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{ |
40 | 0 | super( p, id ); |
41 | 0 | } |
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public abstract String getComparisonFunction(); |
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@Override |
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public String toGetSourceString( OgnlContext context, Object target ) |
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{ |
51 | 78 | if ( target == null ) |
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{ |
53 | 48 | throw new UnsupportedCompilationException( "Current target is null, can't compile." ); |
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} |
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try |
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{ |
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59 | 30 | Object value = getValueBody( context, target ); |
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61 | 29 | if ( value != null && Boolean.class.isAssignableFrom( value.getClass() ) ) |
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{ |
63 | 29 | getterClass = Boolean.TYPE; |
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} |
65 | 0 | else if ( value != null ) |
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{ |
67 | 0 | getterClass = value.getClass(); |
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} |
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else |
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{ |
71 | 0 | getterClass = Boolean.TYPE; |
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} |
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76 | 29 | OgnlRuntime.getChildSource( context, target, children[0] ); |
77 | 28 | OgnlRuntime.getChildSource( context, target, children[1] ); |
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82 | 28 | boolean conversion = OgnlRuntime.shouldConvertNumericTypes( context ); |
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84 | 28 | StringBuilder result = new StringBuilder( "(" ); |
85 | 28 | if ( conversion ) |
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{ |
87 | 19 | result.append( getComparisonFunction() ).append( "( ($w) (" ); |
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} |
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90 | 28 | result.append( OgnlRuntime.getChildSource( context, target, children[0], conversion ) ) |
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.append( " " ); |
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93 | 28 | if ( conversion ) |
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{ |
95 | 19 | result.append( "), ($w) " ); |
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} |
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else |
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{ |
99 | 9 | result.append( getExpressionOperator( 0 ) ); |
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} |
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102 | 28 | result.append( "" ).append( OgnlRuntime.getChildSource( context, target, children[1], conversion ) ); |
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104 | 28 | if ( conversion ) |
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{ |
106 | 19 | result.append( ")" ); |
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} |
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109 | 28 | context.setCurrentType( Boolean.TYPE ); |
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111 | 28 | result.append( ")" ); |
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113 | 28 | return result.toString(); |
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} |
115 | 1 | catch ( NullPointerException e ) |
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{ |
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120 | 1 | throw new UnsupportedCompilationException( "evaluation resulted in null expression." ); |
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} |
122 | 1 | catch ( Throwable t ) |
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{ |
124 | 1 | throw OgnlOps.castToRuntime( t ); |
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} |
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} |
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} |