/**
* Check Options Integrity
*
* <p>
* Could be abstract, because each Backend should check in a different
* way, different types of options, but allowing it to be overwritten,
* we can check if our common options were not corrupted in any form.
* </p>
*
* <p>
* Of course, the child classes must inherit these checks before check
* their own, but this is the least of the problems
* </p>
*
* @throws Next\Cache\CacheException
* Invalid or unsupported Hash Algorithm
*/
protected function checkIntegrity()
{
$constants = $this->getClass()->getConstants();
if (!in_array($this->options->security->hashAlgorithm, $constants)) {
throw BackendException::invalidHashType();
}
}
/**
* Check Options Integrity
*
* @throws Next\Cache\Backend\BackendException
* Output Cache Directory is empty
*
* @throws Next\Cache\Backend\BackendException
* Output Cache Directory doesn't exists
*
* @throws Next\Cache\Backend\BackendException
* Output Cache Directory is not writeable
*/
protected function checkIntegrity()
{
// Inherit Integrity Checks from Parent Class
parent::checkIntegrity();
// Shortening...
$dir =& $this->options->outputDirectory;
// Checking if Output Directory is set
if (empty($dir)) {
throw BackendException::unfullfilledRequirements('Output Cache Directory must be set as non empty string');
}
$info = new \SplFileInfo($dir);
// Checking if Output Directory exists...
if (!$info->isDir()) {
throw BackendException::unfullfilledRequirements('Output Cache Directory <strong>%s</strong> doesn\'t exists', array($dir));
}
// ... and if is writeable
if (!$info->isWritable()) {
throw BackendException::unfullfilledRequirements('Output Cache Directory <strong>%s</strong> is not writable', array($dir));
}
}
