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

Example 11 with Singleton

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

the class ThymeleafFactory method templateEngine.

/**
 * Constructs the template engine.
 *
 * @param templateResolver The template resolver
 * @param engineContextFactory The engine context factory
 * @param linkBuilder The link builder
 * @param messageSourceMessageResolver The message resolver
 * @return The template engine
 */
@Singleton
public TemplateEngine templateEngine(ITemplateResolver templateResolver, IEngineContextFactory engineContextFactory, ILinkBuilder linkBuilder, MessageSourceMessageResolver messageSourceMessageResolver) {
    TemplateEngine engine = new TemplateEngine();
    engine.setEngineContextFactory(engineContextFactory);
    engine.setLinkBuilder(linkBuilder);
    engine.setTemplateResolver(templateResolver);
    engine.addDialect(new Java8TimeDialect());
    engine.addMessageResolver(messageSourceMessageResolver);
    return engine;
}

Example 12 with Singleton

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

the class GraphQLFactory method graphQL.

@Bean
@Singleton
public GraphQL graphQL(ResourceResolver resourceResolver, HelloDataFetcher helloDataFetcher) {
    // <2>
    SchemaParser schemaParser = new SchemaParser();
    SchemaGenerator schemaGenerator = new SchemaGenerator();
    // Parse the schema.
    TypeDefinitionRegistry typeRegistry = new TypeDefinitionRegistry();
    typeRegistry.merge(schemaParser.parse(new BufferedReader(new InputStreamReader(resourceResolver.getResourceAsStream("classpath:schema.graphqls").get()))));
    // Create the runtime wiring.
    RuntimeWiring runtimeWiring = RuntimeWiring.newRuntimeWiring().type("Query", typeWiring -> typeWiring.dataFetcher("hello", helloDataFetcher)).build();
    // Create the executable schema.
    GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeRegistry, runtimeWiring);
    // Return the GraphQL bean.
    return GraphQL.newGraphQL(graphQLSchema).build();
}

Example 13 with Singleton

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

the class GetContextUtilMethodsTest method getActiveContextsTest.

@Test
public void getActiveContextsTest() {
    try (WeldContainer container = new Weld().initialize()) {
        // TheLoneBean is just to have some bean in the archive
        container.select(TheLoneBean.class).get().ping();
        WeldManager manager = container.select(WeldManager.class).get();
        // there are 7 scopes by default in SE, only 3 have active contexts by default
        // it is dependent, singleton and application
        Collection<Context> activeContexts = manager.getActiveContexts();
        Assert.assertEquals(3, activeContexts.size());
        Set<Class<? extends Annotation>> scopes = activeContexts.stream().map(t -> t.getScope()).collect(Collectors.toSet());
        Assert.assertTrue(scopes.contains(Dependent.class));
        Assert.assertTrue(scopes.contains(Singleton.class));
        Assert.assertTrue(scopes.contains(ApplicationScoped.class));
    }
}

Example 14 with Singleton

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

the class OptimizationStream method optimizationOn.

@Singleton
@Named(STREAM_OPTIMIZATION_ON)
KStream<String, String> optimizationOn(@Named(STREAM_OPTIMIZATION_ON) 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_ON_INPUT, Materialized.as(OPTIMIZATION_ON_STORE));
    return table.toStream();
}

Example 15 with Singleton

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

the class GoogleCredentialsFactory method defaultGoogleCredentials.

/**
 * Method used to return the default {@link GoogleCredentials} and provide it as a bean.
 *
 * It will determine which credential in the following way:
 * <ol>
 *     <li>If <pre>gcp.credentials.location</pre> is specified, use its location</li>
 *     <li>Otherwise, if <pre>gcp.credentials.encodedKey</pre> is specified, decode it and use its content</li>
 *     <li>None of the 2 properties were specified, use Application Default credential resolution. See
 *     <a href="https://github.com/googleapis/google-cloud-java#authentication">Google Cloud Java authentication</a>.
 *     This will resolve credential in the following order:
 *       <ol>
 *           <li>The credentials file pointed to by the <pre>GOOGLE_APPLICATION_CREDENTIALS</pre> environment variable</li>
 *           <li>Credentials provided by the Google Cloud SDK <pre>gcloud auth application-default login</pre> command</li>
 *           <li>Google App Engine built-in credentials when running inside of Google App Engine</li>
 *           <li>Google Cloud Shell built-in credentials when running inside of Google Cloud Shell</li>
 *           <li>Google Compute Engine built-in credentials when running inside of Google Compute Engine or Kubernetes Engine</li>
 *       </ol>
 *     </li>
 * </ol>
 *
 * @return The {@link GoogleCredentials}
 * @throws IOException An exception if an error occurs
 */
@Requires(missingBeans = GoogleCredentials.class)
@Requires(classes = com.google.auth.oauth2.GoogleCredentials.class)
@Primary
@Singleton
protected GoogleCredentials defaultGoogleCredentials() throws IOException {
    final List<String> scopes = configuration.getScopes().stream().map(URI::toString).collect(Collectors.toList());
    GoogleCredentials credentials;
    if (configuration.getLocation().isPresent() && configuration.getEncodedKey().isPresent()) {
        throw new ConfigurationException("Please specify only one of gcp.credentials.location or gcp.credentials.encodedKey");
    } else if (configuration.getLocation().isPresent()) {
        LOG.info("Google Credentials from gcp.credentials.location = " + configuration.getLocation());
        FileInputStream fis = new FileInputStream(configuration.getLocation().get());
        credentials = GoogleCredentials.fromStream(fis);
        fis.close();
    } else if (configuration.getEncodedKey().isPresent()) {
        LOG.info("Google Credentials from gcp.credentials.encodedKey");
        Base64.Decoder decoder = Base64.getDecoder();
        byte[] bytes = decoder.decode(configuration.getEncodedKey().get());
        ByteArrayInputStream is = new ByteArrayInputStream(bytes);
        credentials = GoogleCredentials.fromStream(is);
        is.close();
    } else {
        LOG.info("Google Credentials from Application Default Credentials");
        credentials = GoogleCredentials.getApplicationDefault();
    }
    return credentials.createScoped(scopes);
}