check sharedVolume mounted on startup

CheckSharedMount.java

public class Starter {

    Logger log = LoggerFactory.getLogger(Starter.class);

    /**
     * 服务启动方法
     */
    public static void main(String[] args) {
        SpringApplication app = new SpringApplication();
        app.addListeners(new CheckSharedMount());
        app.setSources(new HashSet(Arrays.asList(Starter.class)));
        app.run(args);
    }

}

@Slf4j
class CheckSharedMount implements ApplicationListener<ApplicationContextInitializedEvent> {
    @Override
    public void onApplicationEvent(ApplicationContextInitializedEvent event) {
        ConfigurableEnvironment env = event.getApplicationContext().getEnvironment();
        List<String> profiles = Arrays.asList(env.getActiveProfiles());

        if (!profiles.contains("dev")
                && !profiles.contains("uat")
                && !profiles.contains("prod")) {
            return;
        }

        if (!new File("/data/xxx/gfs.mounted").isFile()) {
            log.error("Fatal Error: marker file 'gfs.mounted' not found! Please check whether shared volume(e.g. glusterfs) is correctly mounted.");
            System.exit(1);
        } else {
            log.info("checking mount point: shared volume mounted successfully!");
        }
    }
}