Package com.onec.ui

Class UpdateChecker

java.lang.Object

com.onec.ui.UpdateChecker

public class UpdateChecker
extends Object

Periodically asks onec-cloud for the latest published framework version and, when it is newer than the running one, flips status() to "update available" — which the web client reads off /api/config and renders as a dismissible banner.

Deliberately self-contained: a daemon ScheduledExecutorService (the same pattern as UiEventPublisher's keepalive, so the framework needs no @EnableScheduling) and the JDK HttpClient (no new dependency). Every failure path — disabled, unknown local version, network error, non-200, malformed body — is swallowed to a debug log and leaves the status at "no update", so a flaky network never produces a wrong or alarming notice.

Constructor Summary

Constructors

Constructor	Description
UpdateChecker(UpdateProperties props, String currentVersion, com.fasterxml.jackson.databind.ObjectMapper mapper)

Method Summary

Modifier and Type	Method	Description
void	shutdown()
void	start()	Schedules the recurring check.
UpdateStatus	status()	The last-known result; never null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

UpdateChecker

public UpdateChecker(UpdateProperties props,
 String currentVersion,
 com.fasterxml.jackson.databind.ObjectMapper mapper)

Method Details

start

@PostConstruct
public void start()

Schedules the recurring check. A no-op when disabled or the local version is unknown.

status

public UpdateStatus status()

The last-known result; never null.

shutdown

@PreDestroy
public void shutdown()