javax.enterprise.inject.Produces Java Examples

@Produces
@ApplicationScoped
@Current
public RegistryStorage realImpl() {
    List<RegistryStorage> list = storages.stream().collect(Collectors.toList());
    RegistryStorage impl = null;
    if (list.size() == 1) {
        impl = list.get(0);
    } else {
        for (RegistryStorage rs : list) {
            if (rs instanceof InMemoryRegistryStorage == false) {
                impl = rs;
                break;
            }
        }
    }
    if (impl != null) {
        log.info(String.format("Using RegistryStore: %s", impl.getClass().getName()));
        return impl;
    }
    throw new IllegalStateException("Should not be here ... ?!");
}
 

@Produces
@Dependent
@ConfigProperty(name = "ignored")
// we actually don't need the name
public List<Float> produceFloatListConfiguration(InjectionPoint injectionPoint) {
    String propertyValue = getStringPropertyValue(injectionPoint);
    String[] values = StringUtils.split(propertyValue, ",");
    
    ArrayList<Float> list = new ArrayList<>();
    if (values != null) {
        for (String value : values) {
            try {
                list.add(Float.parseFloat(value));
            } catch (NumberFormatException nfe) {
                ConfigProperty configProperty = getAnnotation(injectionPoint, ConfigProperty.class);
                throw new RuntimeException("Error while converting Float property '" + configProperty.name() + "' value: " + value + " of " + propertyValue
                                + " happening in bean " + injectionPoint.getBean(), nfe);
            }
            
        }
    }
    return list;
}
 

@Produces
@Named("my-named-options")
public AmqpClientOptions getNamedOptions() {
    // You can use the produced options to configure the TLS connection
    PemKeyCertOptions keycert = new PemKeyCertOptions()
        .addCertPath("./tls/tls.crt")
        .addKeyPath("./tls/tls.key");
    PemTrustOptions trust =
        new PemTrustOptions().addCertPath("./tlc/ca.crt");

    return new AmqpClientOptions()
        .setSsl(true)
        .setPemKeyCertOptions(keycert)
        .setPemTrustOptions(trust)
        .addEnabledSaslMechanism("EXTERNAL")
        .setHostnameVerificationAlgorithm("")
        .setConnectTimeout(30000)
        .setReconnectInterval(5000)
        .setContainerId("my-container");
}
 

@Produces
@ApplicationScoped
public CloseableSupplier<Boolean> livenessCheck(
    @RegistryProperties(
            value = {"registry.kafka.common", "registry.kafka.liveness-check"},
            empties = {"ssl.endpoint.identification.algorithm="}
    ) Properties properties
) {
    AdminClient admin = AdminClient.create(properties);
    return new CloseableSupplier<Boolean>() {
        @Override
        public void close() {
            admin.close();
        }

        @Override
        public Boolean get() {
            return (admin.listTopics() != null);
        }
    };
}
 

@Produces
@ApplicationScoped
public ReadOnlyKeyValueStore<Long, Str.TupleValue> globalIdKeyValueStore(
    KafkaStreams streams,
    HostInfo storageLocalHost,
    StreamsProperties properties
) {
    return new DistributedReadOnlyKeyValueStore<>(
        streams,
        storageLocalHost,
        properties.getGlobalIdStoreName(),
        Serdes.Long(), ProtoSerde.parsedWith(Str.TupleValue.parser()),
        new DefaultGrpcChannelProvider(),
        true,
        (filter, over, id, tuple) -> true
    );
}
 

@Produces
@Dependent
@ConfigProperty(name = "ignored")
// we actually don't need the name
public List<Long> produceLongListConfiguration(InjectionPoint injectionPoint) {
    String propertyValue = getStringPropertyValue(injectionPoint);
    String[] values = StringUtils.split(propertyValue, ",");
    
    ArrayList<Long> list = new ArrayList<>();
    if (values != null) {
        for (String value : values) {
            try {
                list.add(Long.parseLong(value));
            } catch (NumberFormatException nfe) {
                ConfigProperty configProperty = getAnnotation(injectionPoint, ConfigProperty.class);
                throw new RuntimeException("Error while converting Long property '" + configProperty.name() + "' value: " + value + " of " + propertyValue
                                + " happening in bean " + injectionPoint.getBean(), nfe);
            }
            
        }
    }
    return list;
}
 

@Produces
@Singleton
public HostInfo storageLocalHost(StreamsProperties props) {
    String appServer = props.getApplicationServer();
    String[] hostPort = appServer.split(":");
    log.info("Application server gRPC: '{}'", appServer);
    return new HostInfo(hostPort[0], Integer.parseInt(hostPort[1]));
}
 

@io.quarkus.infinispan.client.Remote
@Produces
public <K, V> RemoteCache<K, V> getRemoteCache(InjectionPoint injectionPoint, RemoteCacheManager cacheManager) {
    Set<Annotation> annotationSet = injectionPoint.getQualifiers();

    final io.quarkus.infinispan.client.Remote remote = getRemoteAnnotation(annotationSet);

    if (remote != null && !remote.value().isEmpty()) {
        return cacheManager.getCache(remote.value());
    }

    return cacheManager.getCache();
}
 

@Produces
@ApplicationScoped
public ProducerActions<Cmmn.UUID, Str.StorageValue> storageProducer(
    @RegistryProperties(
            value = {"registry.kafka.common", "registry.kafka.storage-producer"},
            empties = {"ssl.endpoint.identification.algorithm="}
    ) Properties properties
) {
    return new AsyncProducer<>(
        properties,
        ProtoSerde.parsedWith(Cmmn.UUID.parser()),
        ProtoSerde.parsedWith(Str.StorageValue.parser())
    );
}
 

@Produces
<T extends Number> Gauge<T> getGauge(InjectionPoint ip) {
    // A forwarding Gauge must be returned as the Gauge creation happens when the declaring bean gets instantiated and the corresponding Gauge can be injected before which leads to producing a null value
    return () -> {
        // TODO: better error report when the gauge doesn't exist
        SortedMap<MetricID, Gauge> gauges = applicationRegistry.getGauges();
        String name = metricName.of(ip);
        MetricID gaugeId = new MetricID(name);
        return ((Gauge<T>) gauges.get(gaugeId)).getValue();
    };
}
 

@Produces
FooBean testFooBean() {
    return new FooBean() {
        @Override
        public String foo() {
            return "foo from test";
        }
    };
}
 

@Produces
public Topology buildTopology() {
    StreamsBuilder builder = new StreamsBuilder();

    JsonbSerde<WeatherStation> weatherStationSerde = new JsonbSerde<>(WeatherStation.class);
    JsonbSerde<Aggregation> aggregationSerde = new JsonbSerde<>(Aggregation.class);

    KeyValueBytesStoreSupplier storeSupplier = Stores.persistentKeyValueStore(WEATHER_STATIONS_STORE);

    GlobalKTable<Integer, WeatherStation> stations = builder.globalTable(
            WEATHER_STATIONS_TOPIC,
            Consumed.with(Serdes.Integer(), weatherStationSerde));

    builder.stream(
            TEMPERATURE_VALUES_TOPIC,
            Consumed.with(Serdes.Integer(), Serdes.String()))
            .join(
                    stations,
                    (stationId, timestampAndValue) -> stationId,
                    (timestampAndValue, station) -> {
                        String[] parts = timestampAndValue.split(";");
                        return new TemperatureMeasurement(station.id, station.name, Instant.parse(parts[0]),
                                Double.valueOf(parts[1]));
                    })
            .groupByKey()
            .aggregate(
                    Aggregation::new,
                    (stationId, value, aggregation) -> aggregation.updateFrom(value),
                    Materialized.<Integer, Aggregation> as(storeSupplier)
                            .withKeySerde(Serdes.Integer())
                            .withValueSerde(aggregationSerde))
            .toStream()
            .to(
                    TEMPERATURES_AGGREGATED_TOPIC,
                    Produced.with(Serdes.Integer(), aggregationSerde));

    return builder.build();
}
 

@Produces
@Singleton
public KafkaStreams storageStreams(
    StreamsProperties properties,
    ForeachAction<? super String, ? super Str.Data> dataDispatcher,
    ArtifactTypeUtilProviderFactory factory
) {
    Topology topology = new StreamsTopologyProvider(properties, dataDispatcher, factory).get();

    KafkaStreams streams = new KafkaStreams(topology, properties.getProperties());
    streams.setGlobalStateRestoreListener(new LoggingStateRestoreListener());

    return streams;
}
 

@Produces
@Named("my-topic-config2")
public AmqpClientOptions options2() {
    return new AmqpClientOptions()
            .setHost("localhost")
            .setPort(5672)
            .setUsername("smallrye")
            .setPassword("smallrye");
}
 

@Produces
@Named("kafka")
public KafkaComponent kafka() {
    KafkaComponent kafkaComponent = new KafkaComponent();
    KafkaConfiguration configuration = new KafkaConfiguration();
    configuration.setBrokers("localhost:9092");
    kafkaComponent.setConfiguration(configuration);
    return kafkaComponent;
}
 

@Produces
@Singleton
public WaitForDataService waitForDataServiceImpl(
    ReadOnlyKeyValueStore<String, Str.Data> storageKeyValueStore,
    ForeachActionDispatcher<String, Str.Data> storageDispatcher
) {
    return new WaitForDataService(storageKeyValueStore, storageDispatcher);
}
 

@Produces
@UnlessBuildProfile("test")
PingBean notTestPingBean() {
    return new PingBean() {

        @Override
        String ping() {
            return "ping not test";
        }

    };
}
 

@Produces
@Singleton
public LocalService<AsyncBiFunctionService.WithSerdes<Void, Void, KafkaStreams.State>> localStateService(
    StateService localService
) {
    return new LocalService<>(
        StateService.NAME,
        localService
    );
}
 

/**
 * Injects {@code Multi<Message<X>>} and {@code Multi<X>}. It also matches the injection of
 * {@code Publisher<Message<X>>} and {@code Publisher<X>}.
 *
 * @param injectionPoint the injection point
 * @param <T> the first generic parameter (either Message or X)
 * @return the Multi to be injected
 */
@Produces
@Channel("") // Stream name is ignored during type-safe resolution
<T> Multi<T> produceMulti(InjectionPoint injectionPoint) {
    Type first = getFirstParameter(injectionPoint.getType());
    if (TypeUtils.isAssignable(first, Message.class)) {
        return cast(Multi.createFrom().publisher(getPublisher(injectionPoint)));
    } else {
        return cast(Multi.createFrom().publisher(getPublisher(injectionPoint)).map(Message::getPayload));
    }
}
 

@Produces
@Name("")
public ConfigSource produceConfigSource(final InjectionPoint injectionPoint) {
    Set<Annotation> qualifiers = injectionPoint.getQualifiers();
    String name = getName(qualifiers);
    return configSourceMap.get(name);
}
 

@Produces
@Claim("")
Set<String> getClaimAsSet(InjectionPoint ip) {
    CDILogging.log.getClaimAsSet(ip);
    if (currentToken == null) {
        return null;
    }

    String name = getName(ip);
    return (Set<String>) JsonUtils.convert(Set.class, currentToken.getClaim(name));
}
 

@Produces
public Topology buildTopology() {
    StreamsBuilder builder = new StreamsBuilder();

    ObjectMapperSerde<Category> categorySerde = new ObjectMapperSerde<>(Category.class);
    ObjectMapperSerde<Customer> customerSerde = new ObjectMapperSerde<>(Customer.class);
    ObjectMapperSerde<EnrichedCustomer> enrichedCustomerSerde = new ObjectMapperSerde<>(EnrichedCustomer.class);

    KTable<Integer, Category> categories = builder.table(
            "streams-test-categories",
            Consumed.with(Serdes.Integer(), categorySerde));

    KStream<Integer, EnrichedCustomer> customers = builder
            .stream("streams-test-customers", Consumed.with(Serdes.Integer(), customerSerde))
            .selectKey((id, customer) -> customer.category)
            .join(
                    categories,
                    (customer, category) -> {
                        return new EnrichedCustomer(customer.id, customer.name, category);
                    },
                    Joined.with(Serdes.Integer(), customerSerde, categorySerde));

    KeyValueBytesStoreSupplier storeSupplier = Stores.inMemoryKeyValueStore("countstore");
    customers.groupByKey()
            .count(Materialized.<Integer, Long> as(storeSupplier));

    customers.selectKey((categoryId, customer) -> customer.id)
            .to("streams-test-customers-processed", Produced.with(Serdes.Integer(), enrichedCustomerSerde));

    return builder.build();
}
 

@Produces
RoutesBuilder producedRoute() {
    return new RouteBuilder() {
        @Override
        public void configure() throws Exception {
            from("direct:produced")
                    .id("produced")
                    .to("log:produced");
        }
    };
}
 

/**
 * Produces the entity manager provider.
 *
 * @return entity manager provider.
 */
@Produces
@ApplicationScoped
public EntityManagerProvider entityManagerProvider(
        EntityManager entityManager) {
    return new SimpleEntityManagerProvider(entityManager);
}
 

@Produces
@IfBuildProfile("dev")
GreetingBean devGreetingBean(BarBean barBean) {
    return new GreetingBean() {

        @Override
        String greet() {
            return "hello from dev";
        }

    };
}
 

@Singleton
@Produces
@Deprecated
public io.vertx.reactivex.ext.mail.MailClient rxMailClient() {
    LOGGER.warn(
            "`io.vertx.reactivex.ext.mail.MailClient` is deprecated and will be removed in a future version - it is "
                    + "recommended to switch to `io.vertx.mutiny.ext.mail.MailClient`");
    return io.vertx.reactivex.ext.mail.MailClient.newInstance(client);
}
 

/**
 * Produces the RX MySQL Pool instance. The instance is created lazily.
 *
 * @return the RX MySQL pool instance
 * @deprecated The RX API is deprecated and will be removed in the future, use {@link #mutinyMySQLPool()} instead.
 */
@Singleton
@Produces
@Deprecated
public io.vertx.reactivex.mysqlclient.MySQLPool rxMySQLPool() {
    LOGGER.warn(
            "`io.vertx.reactivex.mysqlclient.MySQLPool` is deprecated and will be removed in a future version - it is "
                    + "recommended to switch to `io.vertx.mutiny.mysqlclient.MySQLPool`");
    return io.vertx.reactivex.mysqlclient.MySQLPool.newInstance(mysqlPool);
}
 

@Override
@Alternative
@Specializes
@Produces
@Dependent
@ConfigProperty(name = "ignored")
// we actually don't need the name
public Float produceFloatConfiguration(InjectionPoint injectionPoint) {
    return super.produceFloatConfiguration(injectionPoint);
}
 

@Produces
FluentProducerTemplate camelFluentProducerTemplate(InjectionPoint injectionPoint) {
    final FluentProducerTemplate template = this.context.createFluentProducerTemplate();
    final Produce produce = injectionPoint.getAnnotated().getAnnotation(Produce.class);

    if (ObjectHelper.isNotEmpty(produce) && ObjectHelper.isNotEmpty(produce.value())) {
        template.setDefaultEndpointUri(produce.value());
    }

    return template;
}
 

@Produces
@ViewEngineConfig
public TemplateEngine getTemplateEngine() {

    ITemplateResolver resolver = new ServletContextTemplateResolver(this.servletContext);

    TemplateEngine engine = new TemplateEngine();
    engine.setTemplateResolver(resolver);
    return engine;

}