/**
* @param ICalendar $calendar
*/
public function __construct(ICalendar $calendar)
{
$this->calendar = $calendar;
$backend = $this->calendar->getBackend();
if (!$backend instanceof IBackend) {
$identifier = implode('::', [$this->calendar->getUserId(), '?', $this->calendar->getPrivateUri()]);
$this->logger->error('Backend of calendar \'' . $identifier . '\' not found');
} else {
$this->cache = $backend->getObjectCache($calendar);
try {
$this->objectAPI = $backend->getObjectAPI($calendar);
} catch (BackendUtils\Exception $ex) {
//TODO
}
}
}
/**
* rescan objects that changed and update the corresponding cached calendars
*/
public function propagateChanges()
{
$changes = $this->getChanges();
$this->resetChanges();
if (empty($changes)) {
return;
}
$backend = $this->calendar->getBackend();
$scanner = $backend->getObjectScanner($this->calendar);
foreach ($changes as $objectUri) {
$scanner->scanObject($objectUri);
}
$calendarScanner = $backend->getBackendCollection()->getScanner();
$backendId = $this->calendar->getBackend()->getId();
$privateUri = $this->calendar->getPrivateUri();
$userId = $this->calendar->getUserId();
$calendarScanner->scanCalendar($backendId, $privateUri, $userId);
}
/**
* remove deleted objects from cache
*/
public function clean()
{
try {
$objectAPI = $this->calendar->getBackend()->getObjectAPI($this->calendar);
$list = $objectAPI->listAll();
} catch (BackendUtils\Exception $ex) {
return;
}
$cList = $this->cache->listAll();
$deletedOnRemote = array_diff($cList, $list);
$this->cache->deleteList($deletedOnRemote);
}
/**
* @param ICalendar $calendar
* @param ILogger $logger
*/
public function __construct(ICalendar $calendar, ILogger $logger)
{
$this->calendar = $calendar;
$this->logger = $logger;
if ($calendar->getBackend() instanceof IBackend) {
try {
$this->api = $calendar->getBackend()->getObjectAPI($calendar);
} catch (BackendUtils\Exception $ex) {
//TODO
}
$this->cache = $calendar->getBackend()->getObjectCache($calendar);
$this->updater = $calendar->getBackend()->getObjectUpdater($calendar);
$this->watcher = $calendar->getBackend()->getObjectWatcher($calendar);
$this->isCachingEnabled = $this->api->cache();
}
}
/**
* @param ICalendar $n
* @param ICalendar $o
* @throws Exception
*/
private function checkForIllegalChanges(ICalendar $n, ICalendar $o)
{
if ($n->getUserId() !== $o->getUserId()) {
throw new Exception('Not allowed to transfer calendar to another user!');
}
if ($n->getBackend()->getId() !== $o->getBackend()->getId()) {
throw new Exception('Not allowed to transfer calendar to another backend!');
}
if ($n->getPublicUri() !== $o->getPublicUri()) {
if ($this->cache->doesExist($n->getPublicUri(), $n->getUserId())) {
throw new Exception('New URI is already assigned to another calendar!');
}
}
}
