/**
* Deletes all the files and directories in a directory, recursively.
*
* @param \FilesystemIterator $directoryItem The Filesystem directory we'll be deleting from
*/
private function deleteDirContent($directoryItem)
{
$items = new \FilesystemIterator($directoryItem->getPathname());
foreach ($items as $item) {
if ($item->isDir()) {
$this->deleteDirContent($item);
rmdir($item->getPathname());
} else {
unlink($item->getPathname());
}
}
}
/**
* Function to handle the "/particlesystems/" REST-GET call to get all
* particle systems.
*
* It looks for all existing particle systems on the file-system and
* returns them all in JSON-format.
* The JSON will be an JSON-object, containing an JSON-object "particleSystems",
* which contains an array of all particle systems in JSON.
*
* @return string - The JSON answer.
*/
function get_particlesystems()
{
if (!file_exists("particle/")) {
return '{"particleSystems": []}';
}
$particleSystems = array();
$iterator = new FilesystemIterator("particle/", FilesystemIterator::SKIP_DOTS);
while ($iterator->valid()) {
$file = fopen($iterator->getPathname(), "r");
$content = fread($file, filesize($iterator->getPathname()));
fclose($file);
array_push($particleSystems, $content);
$iterator->next();
}
return '{"particleSystems":' . "[" . implode(",", $particleSystems) . "]" . "}";
}
