public function getValue(DBFarmRole $dbFarmRole, Scalr_Scaling_FarmRoleMetric $farmRoleMetric)
{
$dbFarm = $dbFarmRole->GetFarmObject();
$AmazonSQS = AmazonSQS::GetInstance($dbFarm->GetEnvironmentObject()->getPlatformConfigValue(Modules_Platforms_Ec2::ACCESS_KEY), $dbFarm->GetEnvironmentObject()->getPlatformConfigValue(Modules_Platforms_Ec2::SECRET_KEY));
try {
$res = $AmazonSQS->GetQueueAttributes($farmRoleMetric->getSetting(self::SETTING_QUEUE_NAME));
$retval = $res['ApproximateNumberOfMessages'];
} catch (Exception $e) {
throw new Exception(sprintf("SQSScalingSensor failed during SQS request: %s", $e->getMessage()));
}
return array($retval);
}