/**
* @return Google\IO\NewAbstract IO implementation
*/
public function getIo()
{
if (!isset($this->io)) {
$class = $this->config->getIoClass();
$this->io = new $class($this);
}
return $this->io;
}
/**
* Construct the Google Client.
*
* @param $config Google\Config or string for the ini file to load
*/
public function __construct($config = null)
{
if (is_string($config) && strlen($config)) {
$config = new Config($config);
} else {
if (!$config instanceof Config) {
$config = new Config();
if ($this->isAppEngine()) {
// Automatically use Memcache if we're in AppEngine.
$config->setCacheClass('Google\\Cache\\Memcache');
}
if (version_compare(phpversion(), "5.3.4", "<=") || $this->isAppEngine()) {
// Automatically disable compress.zlib, as currently unsupported.
$config->setClassConfig('Google\\Http\\Request', 'disable_gzip', true);
}
}
}
if ($config->getIoClass() == Config::USE_AUTO_IO_SELECTION) {
if (function_exists('curl_version') && function_exists('curl_exec') && !$this->isAppEngine()) {
$config->setIoClass("Google\\IO\\Curl");
} else {
$config->setIoClass("Google\\IO\\Stream");
}
}
$this->config = $config;
}