/**
* @author WN
* @param DataSources $dataSources
* @param Rule $rule
* @return Value
* @throws ProcessingException
*/
private function fetchValue(DataSources $dataSources, Rule $rule)
{
$source = $dataSources->getDataSource($rule->getSource());
if (!method_exists($source, $rule->getField())) {
throw new ProcessingException('Field [' . $rule->getField() . '] not exists in source [' . $rule->getSource() . ']');
}
$value = $source->{$rule->getField()}();
if (!$value instanceof Value) {
throw new ProcessingException('Field [' . $rule->getField() . '] in source [' . $rule->getSource() . '] must be Value type');
}
return $value;
}
/**
* @author WN
* @param Rule $rule
* @param Value $value
* @param float $noMatchRisk
* @return RuleAdvice
*/
public function process(Rule $rule, Value $value, $noMatchRisk = Risk::MAXIMUM_RISK)
{
$advice = RuleAdvice::make(['rule' => $rule, 'value' => $value, 'risk' => $noMatchRisk]);
foreach ($rule->getConditions() as $condition) {
try {
if ($condition->checkCondition($value)) {
$advice->setRisk($condition->getRisk());
$advice->setCondition($condition);
break;
}
} catch (ProcessingException $e) {
$advice->addExceptions('Processing condition [' . $condition->getValue() . ']: ' . $e->getMessage());
}
}
$advice->setMeta(['processor' => 'First match standard rule processor', 'no_match_risk' => $noMatchRisk]);
return $advice;
}