buildCommand method
Build the @ command to be sent to remote secondary for execution.
Implementation
@override
String buildCommand() {
StringBuffer serverCommandBuffer = StringBuffer('notify:status:');
if (notificationId.isNullOrEmpty) {
throw InvalidAtKeyException('NotificationId cannot be null or empty');
}
serverCommandBuffer.write('$notificationId\n');
return serverCommandBuffer.toString();
}