/**
* This method will create a single rule instance and add it to the given
* {@link PHP_PMD_RuleSet} object.
*
* @param PHP_PMD_RuleSet $ruleSet The parent rule-set instance.
* @param SimpleXMLElement $ruleNode The context rule-set xml node.
*
* @return void
* @throws PHP_PMD_RuleClassFileNotFoundException When a class file does not
* exist.
* @throws PHP_PMD_RuleClassNotFoundException When a configured rule class
* does not exist.
*/
private function parseSingleRuleNode(PHP_PMD_RuleSet $ruleSet, SimpleXMLElement $ruleNode)
{
$className = (string) $ruleNode['class'];
$fileName = strtr($className, '_', '/') . '.php';
if (class_exists($className) === false) {
$handle = @fopen($fileName, 'r', true);
if ($handle === false) {
throw new PHP_PMD_RuleClassFileNotFoundException($className);
}
fclose($handle);
include_once $fileName;
if (class_exists($className) === false) {
throw new PHP_PMD_RuleClassNotFoundException($className);
}
}
/* @var $rule PHP_PMD_Rule */
$rule = new $className();
$rule->setName((string) $ruleNode['name']);
$rule->setMessage((string) $ruleNode['message']);
$rule->setExternalInfoUrl((string) $ruleNode['externalInfoUrl']);
$rule->setRuleSetName($ruleSet->getName());
if (trim($ruleNode['since']) !== '') {
$rule->setSince((string) $ruleNode['since']);
}
foreach ($ruleNode->children() as $node) {
if ($node->getName() === 'description') {
$rule->setDescription((string) $node);
} else {
if ($node->getName() === 'example') {
$rule->addExample((string) $node);
} else {
if ($node->getName() === 'priority') {
$rule->setPriority((int) $node);
} else {
if ($node->getName() === 'properties') {
$this->parsePropertiesNode($rule, $node);
}
}
}
}
}
if ($rule->getPriority() <= $this->minimumPriority) {
$ruleSet->addRule($rule);
}
}