public TypeValuePair evaluate( final FormulaContext context,
final ParameterCallback parameters ) throws EvaluationException {
if ( parameters.getParameterCount() != 3 ) {
throw EvaluationException.getInstance( LibFormulaErrorValue.ERROR_ARGUMENTS_VALUE );
}
final Number n1;
final Number n2;
final Number n3;
try {
final TypeRegistry typeRegistry = context.getTypeRegistry();
n1 = typeRegistry.convertToNumber( parameters.getType( 0 ), parameters.getValue( 0 ) );
n2 = typeRegistry.convertToNumber( parameters.getType( 1 ), parameters.getValue( 1 ) );
n3 = typeRegistry.convertToNumber( parameters.getType( 2 ), parameters.getValue( 2 ) );
} catch ( NumberFormatException e ) {
throw EvaluationException.getInstance( LibFormulaErrorValue.ERROR_INVALID_ARGUMENT_VALUE );
}
if ( n1 == null || n2 == null || n3 == null ) {
throw EvaluationException.getInstance( LibFormulaErrorValue.ERROR_INVALID_ARGUMENT_VALUE );
}
final int hours = n1.intValue();
final int minutes = n2.intValue();
final int seconds = n3.intValue();
final LocalizationContext localizationContext = context.getLocalizationContext();
final Time time = DateUtil.createTime( hours, minutes, seconds, localizationContext );
return new TypeValuePair( DateTimeType.TIME_TYPE, time );
}
}