Package org.saidone.service

Class LockService

java.lang.Object

org.saidone.component.BaseComponent

org.saidone.service.LockService

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

@Component
@Order(-2147483648)
public class LockService
extends BaseComponent

Ensures that only one instance of the application runs at a time.

The service acquires an exclusive lock on the anp.lock file during startup and releases it during bean destruction.

Constructor Summary

Constructors

Constructor	Description
LockService()

Method Summary

Modifier and Type	Method	Description
void	acquireLock()	Tries to acquire the process lock file as soon as the bean is initialized.
void	releaseLock()	Releases any acquired lock resources before bean destruction.

Methods inherited from class org.saidone.component.BaseComponent

setApplicationContext, shutDown, start, stop

Methods inherited from class java.lang.Object

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

Constructor Details

LockService

public LockService()

Method Details

acquireLock

@PostConstruct
public void acquireLock()

Tries to acquire the process lock file as soon as the bean is initialized.

If another process already owns the lock (or an unexpected error happens), the application is terminated through BaseComponent.shutDown(int).

releaseLock

@PreDestroy
public void releaseLock()

Releases any acquired lock resources before bean destruction.

Any exception during cleanup is ignored because the application is already in shutdown flow.