Package com.alpaca.service.impl

Class DataServiceImpl

java.lang.Object

com.alpaca.service.impl.DataServiceImpl

All Implemented Interfaces:

DataService

@Service
public class DataServiceImpl
extends Object
implements DataService

Service responsible for seeding essential application data upon startup.

Implements DataService and initializes default permissions, roles, users, and profiles. Listens for ApplicationReadyEvent to trigger post-startup actions, such as warming up caches or validating system readiness.

This ensures the application is populated with baseline data when it starts in a clean state.

See Also:

• DataService
• ApplicationReadyEvent

Field Summary

Fields

Modifier and Type	Field	Description
private final PasswordManager	passwordManager
private final IPermissionService	permissionService
private final IProfileService	profileService
private final IRoleService	roleService
private final IUserService	userService

Constructor Summary

Constructors

Constructor	Description
DataServiceImpl()

Method Summary

Modifier and Type	Method	Description
void	initializeData()	Seeds the database with default permissions, roles, users, and profiles, only if no user records already exist.
void	warmUpHibernate()	Invoked after the application is fully initialized and ready to serve requests.

Methods inherited from class java.lang.Object

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

Field Details

permissionService

private final IPermissionService permissionService

roleService

private final IRoleService roleService

userService

private final IUserService userService

profileService

private final IProfileService profileService

passwordManager

private final PasswordManager passwordManager

Constructor Details

DataServiceImpl

public DataServiceImpl()

Method Details

initializeData

@Transactional
public void initializeData()

Seeds the database with default permissions, roles, users, and profiles, only if no user records already exist.

Marked Transactional to ensure atomicity and rollback safety.

Specified by:

initializeData in interface DataService

warmUpHibernate

@EventListener(org.springframework.boot.context.event.ApplicationReadyEvent.class)
public void warmUpHibernate()

Invoked after the application is fully initialized and ready to serve requests. Triggers a base call to preload roles and logs system readiness.

Using EventListener with ApplicationReadyEvent ensures this runs only once the Spring context is fully set up.