Java Code Examples for org.hibernate.boot.registry.classloading.spi.ClassLoaderService#loadJavaServices()

/**
 * Builds the selector.
 *
 * @param classLoaderService The class loading service used to (attempt to) resolve any un-registered
 *        strategy implementations.
 *
 * @return The selector.
 */
public static StrategySelector buildSelector(ClassLoaderService classLoaderService) {
    final StrategySelectorImpl strategySelector = new StrategySelectorImpl(classLoaderService);

    // build the baseline...
    strategySelector.registerStrategyLazily(Dialect.class, new DefaultDialectSelector());
    strategySelector.registerStrategyLazily(JtaPlatform.class, new DefaultJtaPlatformSelector());
    addTransactionCoordinatorBuilders(strategySelector);
    addMultiTableBulkIdStrategies(strategySelector);
    addImplicitNamingStrategies(strategySelector);
    addCacheKeysFactories(strategySelector);

    // Required to support well known extensions e.g. Envers
    // TODO: should we introduce a new integrator SPI to limit these to extensions supported by Quarkus?
    for (StrategyRegistrationProvider provider : classLoaderService.loadJavaServices(StrategyRegistrationProvider.class)) {
        for (StrategyRegistration discoveredStrategyRegistration : provider.getStrategyRegistrations()) {
            applyFromStrategyRegistration(strategySelector, discoveredStrategyRegistration);
        }
    }

    return strategySelector;
}
 

@Override
public SessionFactoryServiceRegistry buildServiceRegistry(
		SessionFactoryImplementor sessionFactory,
		BootstrapContext bootstrapContext,
		SessionFactoryOptions options) {
	final ClassLoaderService cls = options.getServiceRegistry().getService( ClassLoaderService.class );
	final SessionFactoryServiceRegistryBuilderImpl builder = new SessionFactoryServiceRegistryBuilderImpl( theBasicServiceRegistry );

	for ( SessionFactoryServiceContributor contributor : cls.loadJavaServices( SessionFactoryServiceContributor.class ) ) {
		contributor.contribute( builder );
	}

	return builder.buildSessionFactoryServiceRegistry( sessionFactory, bootstrapContext, options );
}
 

/**
 * In case a custom {@link MetadataBuilderFactory} creates a custom builder, return that one, otherwise the default
 * builder.
 */
private MetadataBuilder getCustomBuilderOrDefault(MetadataBuilderImpl defaultBuilder) {
	final ClassLoaderService cls = serviceRegistry.getService( ClassLoaderService.class );
	final java.util.Collection<MetadataBuilderFactory> discoveredBuilderFactories = cls.loadJavaServices( MetadataBuilderFactory.class );

	MetadataBuilder builder = null;
	List<String> activeFactoryNames = null;

	for ( MetadataBuilderFactory discoveredBuilderFactory : discoveredBuilderFactories ) {
		final MetadataBuilder returnedBuilder = discoveredBuilderFactory.getMetadataBuilder( this, defaultBuilder );
		if ( returnedBuilder != null ) {
			if ( activeFactoryNames == null ) {
				activeFactoryNames = new ArrayList<>();
			}
			activeFactoryNames.add( discoveredBuilderFactory.getClass().getName() );
			builder = returnedBuilder;
		}
	}

	if ( activeFactoryNames != null && activeFactoryNames.size() > 1 ) {
		throw new HibernateException(
				"Multiple active MetadataBuilder definitions were discovered : " +
						String.join(", ", activeFactoryNames)
		);
	}

	return builder != null ? builder : defaultBuilder;
}
 

@Override
public SessionFactoryBuilder getSessionFactoryBuilder() {
	final SessionFactoryBuilderImpl defaultBuilder = new SessionFactoryBuilderImpl( this, bootstrapContext );

	final ClassLoaderService cls = metadataBuildingOptions.getServiceRegistry().getService( ClassLoaderService.class );
	final java.util.Collection<SessionFactoryBuilderFactory> discoveredBuilderFactories = cls.loadJavaServices( SessionFactoryBuilderFactory.class );

	SessionFactoryBuilder builder = null;
	List<String> activeFactoryNames = null;

	for ( SessionFactoryBuilderFactory discoveredBuilderFactory : discoveredBuilderFactories ) {
		final SessionFactoryBuilder returnedBuilder = discoveredBuilderFactory.getSessionFactoryBuilder( this, defaultBuilder );
		if ( returnedBuilder != null ) {
			if ( activeFactoryNames == null ) {
				activeFactoryNames = new ArrayList<>();
			}
			activeFactoryNames.add( discoveredBuilderFactory.getClass().getName() );
			builder = returnedBuilder;
		}
	}

	if ( activeFactoryNames != null && activeFactoryNames.size() > 1 ) {
		throw new HibernateException(
				"Multiple active SessionFactoryBuilderFactory definitions were discovered : " +
						String.join(", ", activeFactoryNames)
		);
	}

	if ( builder != null ) {
		return builder;
	}

	return defaultBuilder;
}
 

/**
 * Builds the selector.
 *
 * @param classLoaderService The class loading service used to (attempt to) resolve any un-registered
 * strategy implementations.
 *
 * @return The selector.
 */
public StrategySelector buildSelector(ClassLoaderService classLoaderService) {
	final StrategySelectorImpl strategySelector = new StrategySelectorImpl( classLoaderService );

	// build the baseline...
	addDialects( strategySelector );
	addJtaPlatforms( strategySelector );
	addTransactionCoordinatorBuilders( strategySelector );
	addMultiTableBulkIdStrategies( strategySelector );
	addEntityCopyObserverStrategies( strategySelector );
	addImplicitNamingStrategies( strategySelector );
	addCacheKeysFactories( strategySelector );

	// apply auto-discovered registrations
	for ( StrategyRegistrationProvider provider : classLoaderService.loadJavaServices( StrategyRegistrationProvider.class ) ) {
		for ( StrategyRegistration discoveredStrategyRegistration : provider.getStrategyRegistrations() ) {
			applyFromStrategyRegistration( strategySelector, discoveredStrategyRegistration );
		}
	}

	// apply customizations
	for ( StrategyRegistration explicitStrategyRegistration : explicitStrategyRegistrations ) {
		applyFromStrategyRegistration( strategySelector, explicitStrategyRegistration );
	}

	return strategySelector;
}