private function computeSignature($parameters, $accessKeySecret, $iSigner)
{
ksort($parameters);
$canonicalizedQueryString = '';
foreach ($parameters as $key => $value) {
$canonicalizedQueryString .= '&' . $this->percentEncode($key) . '=' . $this->percentEncode($value);
}
$stringToSign = parent::getMethod() . '&%2F&' . $this->percentencode(substr($canonicalizedQueryString, 1));
$signature = $iSigner->signString($stringToSign, $accessKeySecret . "&");
return $signature;
}
function __construct($product, $version, $actionName)
{
parent::__construct($product, $version, $actionName);
$this->setVersion($version);
$this->initialize();
}