java - Multi-Tenancy 迁移以使用 quarkus

Question

我正在努力迁移应用程序以使用最新版本的 quarkus。该应用使用来自 hibernate 接口(interface)的数据库策略实现 Multi-Tenancy 。 Quarkus 建议(如果可能) 避免使用persistence.xml，在给定 quarkus 上下文 ？保留 persistence.xml 还是仅使用 quarkus 推荐的 application.properties？

@Singleton
public class HibernateConnectionProviderFactory implements ConnectionProviderFactory {
    private Logger logger = Logger.getLogger(getClass().getName());

    private static final String TENANT_ID_PLACEHOLDER = "{tenant.id}";

    @Inject
    @SystemProperty("multitenant.hibernate.connection.url")
    private Optional<String> dbUrl;

    @Inject
    @SystemProperty("multitenant.hibernate.connection.driver_class")
    private Optional<String> dbDriverClass;

    @Inject
    @SystemProperty("multitenant.hibernate.dialect")
    private Optional<String> dbDialect;

    @Inject
    @SystemProperty("multitenant.hibernate.connection.username")
    private Optional<String> dbUsername;

    @Inject
    @SystemProperty("multitenant.hibernate.connection.password")
    private Optional<String> dbPassword;

    @Inject
    @SystemProperty(value = "multitenant.hibernate.schema.generation", defaultValue = "false")
    private boolean generateSchema;

    @Inject
    @SystemProperty("multitenant.default.tenant.id")
    private Optional<String> defaultTenantId;

    @Inject
    private PersistenceUnitDescriptorFactory persistenceUnitDescriptorFactory;

    @Inject
    private SchemaGenerator schemaGenerator;

    private final ConcurrentHashMap<String, ConnectionProvider> providers = new ConcurrentHashMap<>();


    @Override
    public Optional<ConnectionProvider> getDefaultConnectionProvider() {
        return defaultTenantId.map(this::getConnectionProvider);
    }

    @Override
    public ConnectionProvider getConnectionProvider(String tenantId) {
        return providers.computeIfAbsent(tenantId, this::createDriverManagerConnectionProvider);
    }


    private ConnectionProvider createDriverManagerConnectionProvider(String tenantId) {
        final PersistenceUnitDescriptor persistenceUnit = persistenceUnitDescriptorFactory.getPersistenceUnitDescriptor(tenantId);
        final Map<Object, Object> persistenceProperties = getPersistenceProperties(tenantId, persistenceUnit.getProperties());
        final StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(persistenceProperties).build();

        if (generateSchema) {
            schemaGenerator.updateSchema(serviceRegistry, persistenceUnit);
        }

        final ConnectionProvider connectionProvider = serviceRegistry.getService(ConnectionProvider.class);


        return connectionProvider;
}
//...
}

Answer 1

目前我们不支持使用 Quarkus application.properties 设置 Hibernate ORM Multi-Tenancy ，因此您应该采用 persistence.xml 方式。

话虽这么说，但如果有足够的吸引力，我们可能会考虑在未来支持它。您能否在 GitHub 上提出问题，以便我们收集对此功能的反馈？

谢谢!