/**
* {@inheritDoc}
*
* @throws InvalidArgumentException When argument(s) is(are) incorrect
*/
public function download($local, Filesystem $remote, array $options = array())
{
if (!$remote instanceof File) {
throw new \InvalidArgumentException(sprintf("Invalid remote file given, expected instance of File, got %s", get_class($remote)));
}
if (true !== is_resource($local)) {
throw new \InvalidArgumentException(sprintf("Invalid local file given. Expected resource, got %s", gettype($local)));
}
if (!isset($options[FTP::NON_BLOCKING]) || true !== $options[FTP::NON_BLOCKING]) {
throw new \InvalidArgumentException("Invalid option given. Expected true as FTP::NON_BLOCKING parameter");
}
$defaults = array(FTP::NON_BLOCKING_CALLBACK => function () {
}, FTP::TRANSFER_MODE => FTPWrapper::BINARY, FTP::START_POS => 0);
$options = $options + $defaults;
$callback = $options[FTP::NON_BLOCKING_CALLBACK];
$state = $this->wrapper->fgetNb($local, $remote->getRealpath(), $options[FTP::TRANSFER_MODE], $options[FTP::START_POS]);
call_user_func_array($callback, array());
while ($state == FTPWrapper::MOREDATA) {
$state = $this->wrapper->nbContinue();
call_user_func_array($callback, array());
}
return $state === FTPWrapper::FINISHED;
}