Examples with Singleton jakarta.inject.Singleton used on opensource projects

Example 1 with Singleton

use of jakarta.inject.Singleton in project micronaut-elasticsearch by micronaut-projects.

the class DefaultElasticsearchClientFactory method elasticsearchTransport.

/**
 * @param elasticsearchConfiguration The {@link DefaultElasticsearchConfigurationProperties} object.
 * @param objectMapper The {@link ObjectMapper} object.
 * @return The {@link ElasticsearchTransport}.
 * @since 4.2.0
 */
@Singleton
@Bean(preDestroy = "close")
ElasticsearchTransport elasticsearchTransport(DefaultElasticsearchConfigurationProperties elasticsearchConfiguration, ObjectMapper objectMapper) {
    RestClient restClient = restClientBuilder(elasticsearchConfiguration).build();
    ElasticsearchTransport transport = new RestClientTransport(restClient, new JacksonJsonpMapper(objectMapper));
    return transport;
}

Example 2 with Singleton

use of jakarta.inject.Singleton in project core by weld.

the class WeldSEBeanRegistrant method registerWeldSEContexts.

public void registerWeldSEContexts(@Observes AfterBeanDiscovery event, BeanManager manager) {
    if (ignoreEvent(event)) {
        return;
    }
    final String contextId = BeanManagerProxy.unwrap(manager).getContextId();
    this.threadContext = new ThreadContext(contextId);
    event.addContext(threadContext);
    // Register WeldContainer as a singleton
    event.addBean().addType(WeldContainer.class).addQualifier(Default.Literal.INSTANCE).scope(Singleton.class).produceWith((i) -> WeldContainer.instance(contextId));
}

Example 3 with Singleton

use of jakarta.inject.Singleton in project micronaut-kafka by micronaut-projects.

the class OptimizationStream method optimizationOff.

@Singleton
@Named(STREAM_OPTIMIZATION_OFF)
KStream<String, String> optimizationOff(@Named(STREAM_OPTIMIZATION_OFF) ConfiguredStreamBuilder builder) {
    // set default serdes
    Properties props = builder.getConfiguration();
    props.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
    props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
    props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
    KTable<String, String> table = builder.table(OPTIMIZATION_OFF_INPUT, Materialized.as(OPTIMIZATION_OFF_STORE));
    return table.toStream();
}

Example 4 with Singleton

use of jakarta.inject.Singleton in project micronaut-kafka by micronaut-projects.

the class WordCountStream method myStream.

@Singleton
@Named(MY_STREAM)
KStream<String, String> myStream(@Named(MY_STREAM) ConfiguredStreamBuilder builder) {
    // end::namedStream[]
    // set default serdes
    Properties props = builder.getConfiguration();
    props.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
    props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
    props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
    KStream<String, String> source = builder.stream(NAMED_WORD_COUNT_INPUT);
    KTable<String, Long> counts = source.flatMapValues(value -> Arrays.asList(value.toLowerCase(Locale.getDefault()).split(" "))).groupBy((key, value) -> value).count();
    // need to override value serde to Long type
    counts.toStream().to(NAMED_WORD_COUNT_OUTPUT, Produced.with(Serdes.String(), Serdes.Long()));
    return source;
}

Example 5 with Singleton

use of jakarta.inject.Singleton in project micronaut-kafka by micronaut-projects.

the class WordCountStream method wordCountStream.

// end::clazz[]
// tag::wordCountStream[]
@Singleton
@Named(STREAM_WORD_COUNT)
KStream<String, String> wordCountStream(ConfiguredStreamBuilder builder) {
    // <3>
    // set default serdes
    Properties props = builder.getConfiguration();
    props.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
    props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
    props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
    KStream<String, String> source = builder.stream(INPUT);
    KTable<String, Long> groupedByWord = source.flatMapValues(value -> Arrays.asList(value.toLowerCase().split("\\W+"))).groupBy((key, word) -> word, Grouped.with(Serdes.String(), Serdes.String())).count(// <4>
    Materialized.as(WORD_COUNT_STORE));
    groupedByWord.toStream().to(OUTPUT, Produced.with(Serdes.String(), Serdes.Long()));
    return source;
}