public function accept()
{
$rel = $this->getInnerIterator()->current();
// path relative to given directory
$path = $this->params['dir'] . "/{$rel}";
// full storage path
if ($this->backend->isSingleShardPathInternal($path)) {
return true;
// path is only on one shard; no issue with duplicates
} elseif (isset($this->multiShardPaths[$rel])) {
// Don't keep listing paths that are on multiple shards
return false;
} else {
$this->multiShardPaths[$rel] = 1;
return true;
}
}
/**
* Filter out duplicate items by advancing to the next ones
*/
protected function filterViaNext()
{
while ($this->valid()) {
$rel = $this->iter->current();
// path relative to given directory
$path = $this->params['dir'] . "/{$rel}";
// full storage path
if ($this->backend->isSingleShardPathInternal($path)) {
break;
// path is only on one shard; no issue with duplicates
} elseif (isset($this->multiShardPaths[$rel])) {
// Don't keep listing paths that are on multiple shards
$this->iter instanceof Iterator ? $this->iter->next() : next($this->iter);
} else {
$this->multiShardPaths[$rel] = 1;
break;
}
}
}
