/**
* @see \qtism\data\storage\xml\marshalling\OperatorMarshaller::unmarshallChildrenKnown()
*/
protected function unmarshallChildrenKnown(DOMElement $element, QtiComponentCollection $children)
{
$object = new Equal($children);
if (($toleranceMode = static::getDOMElementAttributeAs($element, 'toleranceMode')) !== null) {
$toleranceMode = ToleranceMode::getConstantByName($toleranceMode);
$object->setToleranceMode($toleranceMode);
}
if (($tolerance = static::getDOMElementAttributeAs($element, 'tolerance')) !== null) {
$tolerance = explode(" ", $tolerance);
if (count($tolerance) < 1) {
$msg = "No 'tolerance' could be extracted from element '" . $element->localName . "'.";
throw new UnmarshallingException($msg, $element);
} elseif (count($tolerance) > 2) {
$msg = "'tolerance' attribute not correctly formatted in element '" . $element->localName . "'.";
throw new UnmarshallingException($msg, $element);
} else {
$finalTolerance = array();
foreach ($tolerance as $t) {
$finalTolerance[] = Format::isFloat($t) ? floatval($t) : $t;
}
$object->setTolerance($finalTolerance);
}
}
if (($includeLowerBound = static::getDOMElementAttributeAs($element, 'includeLowerBound', 'boolean')) !== null) {
$object->setIncludeLowerBound($includeLowerBound);
}
if (($includeUpperBound = static::getDOMElementAttributeAs($element, 'includeUpperBound', 'boolean')) !== null) {
$object->setIncludeUpperBound($includeUpperBound);
}
return $object;
}
public function createFakeExpression($toleranceMode, array $tolerance = array(), $includeLowerBound = true, $includeUpperBound = true)
{
$tm = $toleranceMode != ToleranceMode::EXACT ? 'tolerance="' . implode(' ', $tolerance) . '"' : '';
$toleranceMode = ToleranceMode::getNameByConstant($toleranceMode);
$iL = $includeLowerBound === true ? 'true' : 'false';
$iU = $includeUpperBound === true ? 'true' : 'false';
$str = '
<equal toleranceMode="' . $toleranceMode . '" ' . $tm . ' includeLowerBound="' . $iL . '" includeUpperBound="' . $iU . '">
<baseValue baseType="integer">10</baseValue>
<baseValue baseType="integer">10</baseValue>
</equal>
';
return $this->createComponentFromXml($str);
}
/**
* Set the tolerance mode.
*
* @param integer $toleranceMode A value from the ToleranceMode enumeration.
* @throws \InvalidArgumentException If $toleranceMode is not a value from the ToleranceMode enumeration.
*/
public function setToleranceMode($toleranceMode)
{
if (in_array($toleranceMode, ToleranceMode::asArray())) {
$this->toleranceMode = $toleranceMode;
} else {
$msg = "The toleranceMode argument must be a value from the ToleranceMode enumeration, '" . $toleranceMode . "' given.";
throw new InvalidArgumentException($msg);
}
}
