/**
* Convert a rule string into a chain
*
* @param string $ruleString Chain Rules string format
*
* @return Chain
*/
public function convert($ruleString)
{
$ruleSet = json_decode($ruleString);
$this->_throwExceptionOnInvalidRuleSet($ruleSet);
$rules = [];
foreach ($ruleSet as $rule) {
$ruleClass = $rule->rule;
$settings = (array) $rule->settings;
$this->_throwExceptionOnUnknownRuleClass($ruleClass);
$rules[] = new $ruleClass($settings);
}
$chain = new Chain();
$chain->setRules($rules);
return $chain;
}