/**
* Merge all chunks to single file
*
* @param string $destination final file location
*
*
* @throws FileLockException
* @throws FileOpenException
* @throws \Exception
*
* @return bool indicates if file was saved
*/
public function save($destination)
{
$fh = fopen($destination, 'wb');
if (!$fh) {
throw new FileOpenException('failed to open destination file: ' . $destination);
}
if (!flock($fh, LOCK_EX | LOCK_NB, $blocked)) {
// @codeCoverageIgnoreStart
if ($blocked) {
// Concurrent request has requested a lock.
// File is being processed at the moment.
// Warning: lock is not checked in windows.
return false;
}
// @codeCoverageIgnoreEnd
throw new FileLockException('failed to lock file: ' . $destination);
}
$totalChunks = $this->request->getTotalChunks();
try {
$preProcessChunk = $this->config->getPreprocessCallback();
for ($i = 1; $i <= $totalChunks; $i++) {
$file = $this->getChunkPath($i);
$chunk = fopen($file, "rb");
if (!$chunk) {
throw new FileOpenException('failed to open chunk: ' . $file);
}
if ($preProcessChunk !== null) {
call_user_func($preProcessChunk, $chunk);
}
stream_copy_to_stream($chunk, $fh);
fclose($chunk);
}
} catch (\Exception $e) {
flock($fh, LOCK_UN);
fclose($fh);
throw $e;
}
if ($this->config->getDeleteChunksOnSave()) {
$this->deleteChunks();
}
flock($fh, LOCK_UN);
fclose($fh);
return true;
}