io.micronaut.context.ApplicationContext Java Examples

/**
 *
 * @param value Object to be serialized
 * @return A JSON String of the supplied object
 */
@Nullable
protected String serializeAsJsonString(Object value) {
    if (value == null) {
        return null;
    }
    ApplicationContext applicationContext = getApplicationContext();
    if (applicationContext != null) {
        if (applicationContext.containsBean(ObjectMapper.class)) {
            ObjectMapper objectMapper = applicationContext.getBean(ObjectMapper.class);
            try {
                return objectMapper.writeValueAsString(value);
            } catch (JsonProcessingException e) {
                return null;
            }
        }
    }
    return null;
}
 

/**
 *
 * @param content JSON String
 * @param valueType Class Type to be read into
 * @param <T> Type to be read into
 * @return a new Class build from the JSON String
 * @throws JsonProcessingException if underlying input contains invalid content
 * @throws JsonMappingException if the input JSON structure does not match structure
 *   expected for result type (or has other mismatch issues)
 */
@Nullable
protected <T> T valueFromContent(String content, Class<T> valueType) throws JsonProcessingException, JsonMappingException {
    if (content == null) {
        return null;
    }
    ApplicationContext applicationContext = getApplicationContext();
    if (applicationContext != null) {
        if (applicationContext.containsBean(ObjectMapper.class)) {
            ObjectMapper objectMapper = applicationContext.getBean(ObjectMapper.class);

            return objectMapper.readValue(content, valueType);
        }
    }
    return null;
}
 

@Test
public void stripBasePath_route_shouldReturn404() throws ContainerInitializationException {
    MicronautLambdaContainerHandler handler = new MicronautLambdaContainerHandler(
            ApplicationContext.build(CollectionUtils.mapOf(
                    "spec.name", "MicronautAwsProxyTest",
                    "micronaut.security.enabled", false,
                    "micronaut.views.handlebars.enabled", true,
                    "micronaut.router.static-resources.lorem.paths", "classpath:static-lorem/",
                    "micronaut.router.static-resources.lorem.mapping", "/static-lorem/**"
            ))
    );
    handler.stripBasePath("/custom");
    try {
        AwsProxyRequest request = getRequestBuilder("/custompath/echo/status-code", "GET")
                .json()
                .queryString("status", "201")
                .build();
        AwsProxyResponse output = handler.proxy(request, lambdaContext);
        assertEquals(404, output.getStatusCode());
    } finally {

        handler.stripBasePath("");
    }
}
 

/**
 * Default constructor.
 * @param applicationContext The application context
 * @param applicationConfiguration The application configuration
 * @param grpcServerConfiguration The GRPC server configuration
 * @param serverBuilder The server builder
 * @param eventPublisher The event publisher
 * @param computeInstanceMetadataResolver The computed instance metadata
 * @param metadataContributors The metadata contributors
 */
@Internal
GrpcEmbeddedServer(
        @Nonnull ApplicationContext applicationContext,
        @Nonnull ApplicationConfiguration applicationConfiguration,
        @Nonnull GrpcServerConfiguration grpcServerConfiguration,
        @Nonnull ServerBuilder<?> serverBuilder,
        @Nonnull ApplicationEventPublisher eventPublisher,
        @Nullable ComputeInstanceMetadataResolver computeInstanceMetadataResolver,
        @Nullable List<ServiceInstanceMetadataContributor> metadataContributors) {
    ArgumentUtils.requireNonNull("applicationContext", applicationContext);
    ArgumentUtils.requireNonNull("applicationConfiguration", applicationConfiguration);
    ArgumentUtils.requireNonNull("grpcServerConfiguration", grpcServerConfiguration);
    this.applicationContext = applicationContext;
    this.configuration = applicationConfiguration;
    this.grpcConfiguration = grpcServerConfiguration;
    this.eventPublisher = eventPublisher;
    this.server = serverBuilder.build();
    this.computeInstanceMetadataResolver = computeInstanceMetadataResolver;
    this.metadataContributors = metadataContributors;
}
 

@Test
public void error_statusCode_methodNotAllowed() throws ContainerInitializationException {
    MicronautLambdaContainerHandler handler = new MicronautLambdaContainerHandler(
            ApplicationContext.build(CollectionUtils.mapOf(
                    "spec.name", "MicronautAwsProxyTest",
                    "micronaut.security.enabled", false,
                    "micronaut.views.handlebars.enabled", true,
                    "micronaut.router.static-resources.lorem.paths", "classpath:static-lorem/",
                    "micronaut.router.static-resources.lorem.mapping", "/static-lorem/**"
            ))
    );
    AwsProxyRequest request = getRequestBuilder("/echo/status-code", "POST")
            .json()
            .queryString("status", "201")
            .build();

    AwsProxyResponse output = handler.proxy(request, lambdaContext);
    assertEquals(405, output.getStatusCode());
}
 

@Test
public void errors_unknownRoute_expect404() throws ContainerInitializationException {
    MicronautLambdaContainerHandler handler = new MicronautLambdaContainerHandler(
            ApplicationContext.build(CollectionUtils.mapOf(
                    "spec.name", "MicronautAwsProxyTest",
                    "micronaut.security.enabled", false,
                    "micronaut.views.handlebars.enabled", true,
                    "micronaut.router.static-resources.lorem.paths", "classpath:static-lorem/",
                    "micronaut.router.static-resources.lorem.mapping", "/static-lorem/**"
            ))
    );
    AwsProxyRequest request = getRequestBuilder("/echo/test33", "GET").build();

    AwsProxyResponse output = handler.proxy(request, lambdaContext);
    assertEquals(404, output.getStatusCode());
}
 

/**
 * Default constructor.
 * @param applicationContext The application context
 * @param applicationConfiguration The application configuration
 * @param grpcServerConfiguration The GRPC server configuration
 * @param serverBuilder The server builder
 * @param eventPublisher The event publisher
 * @param computeInstanceMetadataResolver The computed instance metadata
 * @param metadataContributors The metadata contributors
 */
@Internal
GrpcEmbeddedServer(
        @Nonnull ApplicationContext applicationContext,
        @Nonnull ApplicationConfiguration applicationConfiguration,
        @Nonnull GrpcServerConfiguration grpcServerConfiguration,
        @Nonnull ServerBuilder<?> serverBuilder,
        @Nonnull ApplicationEventPublisher eventPublisher,
        @Nullable ComputeInstanceMetadataResolver computeInstanceMetadataResolver,
        @Nullable List<ServiceInstanceMetadataContributor> metadataContributors) {
    ArgumentUtils.requireNonNull("applicationContext", applicationContext);
    ArgumentUtils.requireNonNull("applicationConfiguration", applicationConfiguration);
    ArgumentUtils.requireNonNull("grpcServerConfiguration", grpcServerConfiguration);
    this.applicationContext = applicationContext;
    this.configuration = applicationConfiguration;
    this.grpcConfiguration = grpcServerConfiguration;
    this.eventPublisher = eventPublisher;
    this.server = serverBuilder.build();
    this.computeInstanceMetadataResolver = computeInstanceMetadataResolver;
    this.metadataContributors = metadataContributors;
}
 

/**
 * Register the beans in the application.
 *
 * @param context context
 * @param applicationContext application context
 */
static void registerContextBeans(Context context, ApplicationContext applicationContext) {
    applicationContext.registerSingleton(context);
    LambdaLogger logger = context.getLogger();
    if (logger != null) {
        applicationContext.registerSingleton(logger);
    }
    ClientContext clientContext = context.getClientContext();
    if (clientContext != null) {
        applicationContext.registerSingleton(clientContext);
    }
    CognitoIdentity identity = context.getIdentity();
    if (identity != null) {
        applicationContext.registerSingleton(identity);
    }
}
 

/**
 * @param applicationContext      The application context
 * @param integrator              The {@link Integrator}
 * @param entityScanConfiguration The entity scan configuration
 */
@Inject
protected JpaConfiguration(ApplicationContext applicationContext,
                           @Nullable Integrator integrator,
                           @Nullable EntityScanConfiguration entityScanConfiguration) {
    ClassLoader classLoader = applicationContext.getClassLoader();
    BootstrapServiceRegistryBuilder bootstrapServiceRegistryBuilder =
            createBootstrapServiceRegistryBuilder(integrator, classLoader);

    this.bootstrapServiceRegistry = bootstrapServiceRegistryBuilder.build();
    this.entityScanConfiguration = entityScanConfiguration != null ? entityScanConfiguration : new EntityScanConfiguration(applicationContext.getEnvironment());
    this.environment = applicationContext.getEnvironment();
    this.applicationContext = applicationContext;
}
 

@BeforeClass
public static void setup() {
    kafkaContainer.start();
    applicationContext = ApplicationContext.run(
            CollectionUtils.mapOf(
                    "kafka.bootstrap.servers", kafkaContainer.getBootstrapServers()
        )
    );
}
 

@Test
public void testBookSender() throws IOException {
    Map<String, Object> config = Collections.singletonMap( // <1>
            AbstractKafkaConfiguration.EMBEDDED, true
    );

    try (ApplicationContext ctx = ApplicationContext.run(config)) {
        BookSender bookSender = ctx.getBean(BookSender.class); // <2>
        Book book = new Book();
        book.setTitle("The Stand");
        bookSender.send("Stephen King", book);
    }
}
 

@BeforeAll
void setup() {
    this.context = ApplicationContext.run();
    this.bookRepository = context.getBean(BookRepository.class);
    this.bookRepository.saveAll(Arrays.asList(
            new Book("The Stand", 1000),
            new Book("The Shining", 600),
            new Book("The Power of the Dog", 500),
            new Book("The Border", 700),
            new Book("Along Came a Spider", 300),
            new Book("Pet Cemetery", 400),
            new Book("A Game of Thrones", 900),
            new Book("A Clash of Kings", 1100)
    ));
}
 

/**
 * Builds a new builder.
 *
 * @return The {@link ApplicationContextBuilder}
 */
@SuppressWarnings("unchecked")
@NonNull
protected ApplicationContextBuilder newApplicationContextBuilder() {
    return ApplicationContext.build(Environment.FUNCTION, MicronautLambdaContext.ENVIRONMENT_LAMBDA, AlexaEnvironment.ENV_ALEXA)
            .eagerInitSingletons(true)
            .eagerInitConfiguration(true);
}
 

@Override
protected ApplicationContext buildApplicationContext(Context context) {
    ApplicationContext applicationContext = super.buildApplicationContext(context);
    if (context != null) {
        registerContextBeans(context, applicationContext);
        this.functionName = context.getFunctionName();
    }
    return applicationContext;
}
 

@Test
public void testInvokingALocalFunctionRX() {
    Sum sum = new Sum();
    sum.setA(5);
    sum.setB(10);

    EmbeddedServer server = ApplicationContext.run(EmbeddedServer.class);
    RxMathClient mathClient = server.getApplicationContext().getBean(RxMathClient.class);

    assertEquals(Long.valueOf(Integer.MAX_VALUE), mathClient.max().blockingGet());
    assertEquals(2, mathClient.rnd(1.6f).blockingGet().longValue());
    assertEquals(15, mathClient.sum(sum).blockingGet().longValue());

}
 

/**
 * @param args command line arguments
 * @return An {@link ApplicationContextBuilder} with the command line arguments as a property source and the environment set to lambda
 */
public ApplicationContextBuilder createApplicationContextBuilderWithArgs(String... args) {
    CommandLine commandLine = CommandLine.parse(args);
    return ApplicationContext.build()
            .environments(MicronautLambdaContext.ENVIRONMENT_LAMBDA)
            .propertySources(new CommandLinePropertySource(commandLine));
}
 

@BeforeClass
public static void initializeServer() throws ContainerInitializationException {
    try {
        handler = new MicronautLambdaContainerHandler(
                ApplicationContext.build()
                        .properties(CollectionUtils.mapOf(
                                "spec.name", "HelloWorldMicronautTest"
                        ))
        );
    } catch (RuntimeException e) {
        e.printStackTrace();
        fail();
    }
}
 

public static void main(String...args) {
    ApplicationContext applicationContext = ApplicationContext.run(
            Collections.singletonMap(
                    AbstractKafkaConfiguration.EMBEDDED, true
            )
    , Environment.TEST);
    KafkaEmbedded embedded = applicationContext.getBean(KafkaEmbedded.class);
}
 

@Setup
public void prepare() {
    this.applicationContext = ApplicationContext.build().packages("example").start();
    this.bookRepository = applicationContext.getBean(BookRepository.class);
    this.bookRepository.saveAll(Arrays.asList(
            new Book("The Stand", 1000),
            new Book("The Shining", 600),
            new Book("The Power of the Dog", 500),
            new Book("The Border", 700),
            new Book("Along Came a Spider", 300),
            new Book("Pet Cemetery", 400),
            new Book("A Game of Thrones", 900),
            new Book("A Clash of Kings", 1100)
    ));
}
 

@Test
public void testInvokingALocalFunction() {
    Sum sum = new Sum();
    sum.setA(5);
    sum.setB(10);

    EmbeddedServer server = ApplicationContext.run(EmbeddedServer.class);
    MathClient mathClient = server.getApplicationContext().getBean(MathClient.class);

    assertEquals(Long.valueOf(Integer.MAX_VALUE), mathClient.max());
    assertEquals(2, mathClient.rnd(1.6f));
    assertEquals(15, mathClient.sum(sum));

}
 

@Setup
public void prepare() {
    this.applicationContext = ApplicationContext.build().packages("example").start();
    this.bookRepository = applicationContext.getBean(BookRepository.class);
    this.bookRepository.saveAll(Arrays.asList(
            new Book("The Stand", 1000),
            new Book("The Shining", 600),
            new Book("The Power of the Dog", 500),
            new Book("The Border", 700),
            new Book("Along Came a Spider", 300),
            new Book("Pet Cemetery", 400),
            new Book("A Game of Thrones", 900),
            new Book("A Clash of Kings", 1100)
    ));
}
 

@BeforeAll
void setup() {
    this.context = ApplicationContext.run();
    this.bookRepository = context.getBean(BookRepository.class);
    this.bookRepository.saveAll(Arrays.asList(
            new Book("The Stand", 1000),
            new Book("The Shining", 600),
            new Book("The Power of the Dog", 500),
            new Book("The Border", 700),
            new Book("Along Came a Spider", 300),
            new Book("Pet Cemetery", 400),
            new Book("A Game of Thrones", 900),
            new Book("A Clash of Kings", 1100)
    ));
}
 

/**
 * @param applicationContext The application context
 * @param testClass The test class
 * @param testMethod The test method
 * @param testInstance The test instance
 * @param testException The exception thrown by the test execution
 */
public TestContext(
    final ApplicationContext applicationContext,
    final Class<?> testClass,
    final AnnotatedElement testMethod,
    final Object testInstance,
    final Throwable testException) {

  this.applicationContext = applicationContext;
  this.testClass = testClass;
  this.testException = testException;
  this.testInstance = testInstance;
  this.testMethod = testMethod;

}
 

@Override
public void beforeAll(ExtensionContext extensionContext) throws Exception {
    final Class<?> testClass = extensionContext.getRequiredTestClass();
    final MicronautTest micronautTest = AnnotationSupport.findAnnotation(testClass, MicronautTest.class).orElse(null);
    beforeClass(extensionContext, testClass, micronautTest);
    getStore(extensionContext).put(ApplicationContext.class, applicationContext);
    if (specDefinition != null) {
        TestInstance ti = AnnotationSupport.findAnnotation(testClass, TestInstance.class).orElse(null);
        if (ti != null && ti.value() == TestInstance.Lifecycle.PER_CLASS) {
            Object testInstance = extensionContext.getRequiredTestInstance();
            applicationContext.inject(testInstance);
        }
    }
    beforeTestClass(buildContext(extensionContext));
}
 

/**
 * @param applicationContext The application context
 * @param eventPublisher     The event publisher
 * @param dataSourceResolver The data source resolver
 */
public DataSourceMigrationRunner(ApplicationContext applicationContext,
                                 ApplicationEventPublisher eventPublisher,
                                 @Nullable DataSourceResolver dataSourceResolver) {
    super(applicationContext, eventPublisher);
    this.dataSourceResolver = dataSourceResolver != null ? dataSourceResolver : DataSourceResolver.DEFAULT;
}
 

public Registry(ApplicationContext applicationContext) {
    Collection<BeanDefinition<CommandHandler>> commandHandlers = applicationContext.getBeanDefinitions(CommandHandler.class);
    commandHandlers.forEach(x -> registerCommand(applicationContext, x));

    Collection<BeanDefinition<QueryHandler>> queryHandlers = applicationContext.getBeanDefinitions(QueryHandler.class);
    queryHandlers.forEach(x -> registerQuery(applicationContext, x));
}
 

/**
 * Default constructor.
 * @param beanContext The bean context
 * @param executorService The I/O executor service
 */
public GrpcChannelBuilderFactory(
        ApplicationContext beanContext,
        @javax.inject.Named(TaskExecutors.IO) ExecutorService executorService) {
    this.beanContext = beanContext;
    this.executorService = executorService;
}
 

public static Bootstrap instance() {
    if (instance == null) {
        final ApplicationContext applicationContext = Bootstrap.run();

        instance = new Bootstrap(applicationContext.getBean(VlingoServer.class));
    }
    return instance;
}
 

public static Bootstrap instance() {
    if (instance == null) {
        final ApplicationContext applicationContext = Bootstrap.run();

        instance = new Bootstrap(applicationContext.getBean(VlingoServer.class));
    }
    return instance;
}
 

public static Bootstrap instance() {
    if (instance == null) {
        final ApplicationContext applicationContext = run();

        final VlingoServer vlingoServer =
                applicationContext.getBean(VlingoServer.class);

        instance = new Bootstrap(vlingoServer);
    }
    return instance;
}