Examples with AnnotationMetadata io.micronaut.core.annotation.AnnotationMetadata used on opensource projects

Example 1 with AnnotationMetadata

use of io.micronaut.core.annotation.AnnotationMetadata in project micronaut-kafka by micronaut-projects.

the class KafkaClientIntroductionAdvice method getProducer.

@SuppressWarnings("unchecked")
private ProducerState getProducer(MethodInvocationContext<?, ?> context) {
    ProducerKey key = new ProducerKey(context.getTarget(), context.getExecutableMethod());
    return producerMap.computeIfAbsent(key, producerKey -> {
        String clientId = context.stringValue(KafkaClient.class).orElse(null);
        List<ContextSupplier<Iterable<Header>>> headersSuppliers = new LinkedList<>();
        List<AnnotationValue<MessageHeader>> headers = context.getAnnotationValuesByType(MessageHeader.class);
        if (!headers.isEmpty()) {
            List<Header> kafkaHeaders = new ArrayList<>(headers.size());
            for (AnnotationValue<MessageHeader> header : headers) {
                String name = header.stringValue("name").orElse(null);
                String value = header.stringValue().orElse(null);
                if (StringUtils.isNotEmpty(name) && StringUtils.isNotEmpty(value)) {
                    kafkaHeaders.add(new RecordHeader(name, value.getBytes(StandardCharsets.UTF_8)));
                }
            }
            if (!kafkaHeaders.isEmpty()) {
                headersSuppliers.add(ctx -> kafkaHeaders);
            }
        }
        Argument keyArgument = null;
        Argument bodyArgument = null;
        ContextSupplier<String>[] topicSupplier = new ContextSupplier[1];
        topicSupplier[0] = ctx -> ctx.stringValue(Topic.class).filter(StringUtils::isNotEmpty).orElseThrow(() -> new MessagingClientException("No topic specified for method: " + context));
        ContextSupplier<Object> keySupplier = NULL_SUPPLIER;
        ContextSupplier<Object> valueSupplier = NULL_SUPPLIER;
        ContextSupplier<Long> timestampSupplier = NULL_SUPPLIER;
        BiFunction<MethodInvocationContext<?, ?>, Producer, Integer> partitionFromProducerFn = (ctx, producer) -> null;
        Argument[] arguments = context.getArguments();
        for (int i = 0; i < arguments.length; i++) {
            int finalI = i;
            Argument<Object> argument = arguments[i];
            if (ProducerRecord.class.isAssignableFrom(argument.getType()) || argument.isAnnotationPresent(MessageBody.class)) {
                bodyArgument = argument.isAsyncOrReactive() ? argument.getFirstTypeVariable().orElse(Argument.OBJECT_ARGUMENT) : argument;
                valueSupplier = ctx -> ctx.getParameterValues()[finalI];
            } else if (argument.isAnnotationPresent(KafkaKey.class)) {
                keyArgument = argument;
                keySupplier = ctx -> ctx.getParameterValues()[finalI];
            } else if (argument.isAnnotationPresent(Topic.class)) {
                ContextSupplier<String> prevTopicSupplier = topicSupplier[0];
                topicSupplier[0] = ctx -> {
                    Object o = ctx.getParameterValues()[finalI];
                    if (o != null) {
                        String topic = o.toString();
                        if (StringUtils.isNotEmpty(topic)) {
                            return topic;
                        }
                    }
                    return prevTopicSupplier.get(ctx);
                };
            } else if (argument.isAnnotationPresent(KafkaTimestamp.class)) {
                timestampSupplier = ctx -> {
                    Object o = ctx.getParameterValues()[finalI];
                    if (o instanceof Long) {
                        return (Long) o;
                    }
                    return null;
                };
            } else if (argument.isAnnotationPresent(KafkaPartition.class)) {
                partitionFromProducerFn = (ctx, producer) -> {
                    Object o = ctx.getParameterValues()[finalI];
                    if (o != null && Integer.class.isAssignableFrom(o.getClass())) {
                        return (Integer) o;
                    }
                    return null;
                };
            } else if (argument.isAnnotationPresent(KafkaPartitionKey.class)) {
                partitionFromProducerFn = (ctx, producer) -> {
                    Object partitionKey = ctx.getParameterValues()[finalI];
                    if (partitionKey != null) {
                        Serializer serializer = serdeRegistry.pickSerializer(argument);
                        if (serializer == null) {
                            serializer = new ByteArraySerializer();
                        }
                        String topic = topicSupplier[0].get(ctx);
                        byte[] partitionKeyBytes = serializer.serialize(topic, partitionKey);
                        return Utils.toPositive(Utils.murmur2(partitionKeyBytes)) % producer.partitionsFor(topic).size();
                    }
                    return null;
                };
            } else if (argument.isAnnotationPresent(MessageHeader.class)) {
                final AnnotationMetadata annotationMetadata = argument.getAnnotationMetadata();
                String name = annotationMetadata.stringValue(MessageHeader.class, "name").orElseGet(() -> annotationMetadata.stringValue(MessageHeader.class).orElseGet(argument::getName));
                headersSuppliers.add(ctx -> {
                    Object headerValue = ctx.getParameterValues()[finalI];
                    if (headerValue != null) {
                        Serializer<Object> serializer = serdeRegistry.pickSerializer(argument);
                        if (serializer != null) {
                            try {
                                return Collections.singleton(new RecordHeader(name, serializer.serialize(null, headerValue)));
                            } catch (Exception e) {
                                throw new MessagingClientException("Cannot serialize header argument [" + argument + "] for method [" + ctx + "]: " + e.getMessage(), e);
                            }
                        }
                    }
                    return Collections.emptySet();
                });
            } else {
                if (argument.isContainerType() && Header.class.isAssignableFrom(argument.getFirstTypeVariable().orElse(Argument.OBJECT_ARGUMENT).getType())) {
                    headersSuppliers.add(ctx -> {
                        Collection<Header> parameterHeaders = (Collection<Header>) ctx.getParameterValues()[finalI];
                        if (parameterHeaders != null) {
                            return parameterHeaders;
                        }
                        return Collections.emptySet();
                    });
                } else {
                    Class argumentType = argument.getType();
                    if (argumentType == Headers.class || argumentType == RecordHeaders.class) {
                        headersSuppliers.add(ctx -> {
                            Headers parameterHeaders = (Headers) ctx.getParameterValues()[finalI];
                            if (parameterHeaders != null) {
                                return parameterHeaders;
                            }
                            return Collections.emptySet();
                        });
                    }
                }
            }
        }
        if (bodyArgument == null) {
            for (int i = 0; i < arguments.length; i++) {
                int finalI = i;
                Argument argument = arguments[i];
                if (!argument.getAnnotationMetadata().hasStereotype(Bindable.class)) {
                    bodyArgument = argument.isAsyncOrReactive() ? argument.getFirstTypeVariable().orElse(Argument.OBJECT_ARGUMENT) : argument;
                    valueSupplier = ctx -> ctx.getParameterValues()[finalI];
                    break;
                }
            }
            if (bodyArgument == null) {
                throw new MessagingClientException("No valid message body argument found for method: " + context);
            }
        }
        AbstractKafkaProducerConfiguration configuration;
        if (clientId != null) {
            Optional<KafkaProducerConfiguration> namedConfig = beanContext.findBean(KafkaProducerConfiguration.class, Qualifiers.byName(clientId));
            if (namedConfig.isPresent()) {
                configuration = namedConfig.get();
            } else {
                configuration = beanContext.getBean(AbstractKafkaProducerConfiguration.class);
            }
        } else {
            configuration = beanContext.getBean(AbstractKafkaProducerConfiguration.class);
        }
        DefaultKafkaProducerConfiguration<?, ?> newConfiguration = new DefaultKafkaProducerConfiguration<>(configuration);
        Properties newProperties = newConfiguration.getConfig();
        String transactionalId = context.stringValue(KafkaClient.class, "transactionalId").filter(StringUtils::isNotEmpty).orElse(null);
        if (clientId != null) {
            newProperties.putIfAbsent(ProducerConfig.CLIENT_ID_CONFIG, clientId);
        }
        if (transactionalId != null) {
            newProperties.putIfAbsent(ProducerConfig.TRANSACTIONAL_ID_CONFIG, transactionalId);
        }
        context.getValue(KafkaClient.class, "maxBlock", Duration.class).ifPresent(maxBlock -> newProperties.put(ProducerConfig.MAX_BLOCK_MS_CONFIG, String.valueOf(maxBlock.toMillis())));
        Integer ack = context.intValue(KafkaClient.class, "acks").orElse(KafkaClient.Acknowledge.DEFAULT);
        if (ack != KafkaClient.Acknowledge.DEFAULT) {
            String acksValue = ack == -1 ? "all" : String.valueOf(ack);
            newProperties.put(ProducerConfig.ACKS_CONFIG, acksValue);
        }
        context.findAnnotation(KafkaClient.class).map(ann -> ann.getProperties("properties", "name")).ifPresent(newProperties::putAll);
        LOG.debug("Creating new KafkaProducer.");
        if (!newProperties.containsKey(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG)) {
            Serializer<?> keySerializer = newConfiguration.getKeySerializer().orElse(null);
            if (keySerializer == null) {
                if (keyArgument != null) {
                    keySerializer = serdeRegistry.pickSerializer(keyArgument);
                } else {
                    keySerializer = new ByteArraySerializer();
                }
                LOG.debug("Using Kafka key serializer: {}", keySerializer);
                newConfiguration.setKeySerializer((Serializer) keySerializer);
            }
        }
        boolean isBatchSend = context.isTrue(KafkaClient.class, "batch");
        if (!newProperties.containsKey(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG)) {
            Serializer<?> valueSerializer = newConfiguration.getValueSerializer().orElse(null);
            if (valueSerializer == null) {
                valueSerializer = serdeRegistry.pickSerializer(isBatchSend ? bodyArgument.getFirstTypeVariable().orElse(bodyArgument) : bodyArgument);
                LOG.debug("Using Kafka value serializer: {}", valueSerializer);
                newConfiguration.setValueSerializer((Serializer) valueSerializer);
            }
        }
        Producer<?, ?> producer = beanContext.createBean(Producer.class, newConfiguration);
        boolean transactional = StringUtils.isNotEmpty(transactionalId);
        timestampSupplier = context.isTrue(KafkaClient.class, "timestamp") ? ctx -> System.currentTimeMillis() : timestampSupplier;
        Duration maxBlock = context.getValue(KafkaClient.class, "maxBlock", Duration.class).orElse(null);
        if (transactional) {
            producer.initTransactions();
        }
        ContextSupplier<Collection<Header>> headersSupplier = ctx -> {
            if (headersSuppliers.isEmpty()) {
                return null;
            }
            List<Header> headerList = new ArrayList<>(headersSuppliers.size());
            for (ContextSupplier<Iterable<Header>> supplier : headersSuppliers) {
                for (Header header : supplier.get(ctx)) {
                    headerList.add(header);
                }
            }
            if (headerList.isEmpty()) {
                return null;
            }
            return headerList;
        };
        BiFunction<MethodInvocationContext<?, ?>, Producer, Integer> finalPartitionFromProducerFn = partitionFromProducerFn;
        ContextSupplier<Integer> partitionSupplier = ctx -> finalPartitionFromProducerFn.apply(ctx, producer);
        return new ProducerState(producer, keySupplier, topicSupplier[0], valueSupplier, timestampSupplier, partitionSupplier, headersSupplier, transactional, transactionalId, maxBlock, isBatchSend, bodyArgument);
    });
}

Example 2 with AnnotationMetadata

use of io.micronaut.core.annotation.AnnotationMetadata in project micronaut-views by micronaut-projects.

the class ViewsFilter method resolveMediaType.

/**
 * Resolves the response content type for the matched route.
 * @param response HTTP response
 * @param responseBody HTTP Response body
 * @return The resolved content type
 */
@NonNull
protected MediaType resolveMediaType(@NonNull HttpResponse<?> response, @Nullable Object responseBody) {
    Optional<AnnotationMetadata> routeMatch = response.getAttribute(HttpAttributes.ROUTE_MATCH, AnnotationMetadata.class);
    if (!routeMatch.isPresent()) {
        return MediaType.APPLICATION_JSON_TYPE;
    }
    AnnotationMetadata route = routeMatch.get();
    return route.getValue(Produces.class, MediaType.class).orElse((route.getValue(View.class).isPresent() || responseBody instanceof ModelAndView) ? MediaType.TEXT_HTML_TYPE : MediaType.APPLICATION_JSON_TYPE);
}

Example 3 with AnnotationMetadata

use of io.micronaut.core.annotation.AnnotationMetadata in project micronaut-test by micronaut-projects.

the class MicronautJunit5Extension method resolveQualifier.

/**
 * Build a qualifier for the given argument.
 * @param argument The argument
 * @param <T> The type
 * @return The resolved qualifier
 */
@SuppressWarnings("unchecked")
private static <T> Qualifier<T> resolveQualifier(Argument<?> argument) {
    AnnotationMetadata annotationMetadata = Objects.requireNonNull(argument, "Argument cannot be null").getAnnotationMetadata();
    boolean hasMetadata = annotationMetadata != AnnotationMetadata.EMPTY_METADATA;
    List<String> qualifierTypes = hasMetadata ? annotationMetadata.getAnnotationNamesByStereotype(AnnotationUtil.QUALIFIER) : null;
    if (CollectionUtils.isNotEmpty(qualifierTypes)) {
        if (qualifierTypes.size() == 1) {
            return Qualifiers.byAnnotation(annotationMetadata, qualifierTypes.iterator().next());
        } else {
            final Qualifier[] qualifiers = qualifierTypes.stream().map((type) -> Qualifiers.byAnnotation(annotationMetadata, type)).toArray(Qualifier[]::new);
            return Qualifiers.<T>byQualifiers(qualifiers);
        }
    }
    return null;
}

Example 4 with AnnotationMetadata

use of io.micronaut.core.annotation.AnnotationMetadata in project micronaut-micrometer by micronaut-projects.

the class CountedInterceptor method intercept.

@Override
public Object intercept(MethodInvocationContext<Object, Object> context) {
    final AnnotationMetadata metadata = context.getAnnotationMetadata();
    final String metricName = metadata.stringValue(Counted.class).orElse(DEFAULT_METRIC_NAME);
    if (StringUtils.isNotEmpty(metricName)) {
        InterceptedMethod interceptedMethod = InterceptedMethod.of(context);
        try {
            InterceptedMethod.ResultType resultType = interceptedMethod.resultType();
            switch(resultType) {
                case PUBLISHER:
                    Object interceptResult = context.proceed();
                    if (interceptResult == null) {
                        return null;
                    }
                    Object reactiveResult;
                    if (context.getReturnType().isSingleResult()) {
                        Mono<?> single = Publishers.convertPublisher(interceptResult, Mono.class);
                        reactiveResult = single.doOnError(throwable -> doCount(metadata, metricName, throwable)).doOnSuccess(o -> doCount(metadata, metricName, null));
                    } else {
                        Flux<?> flowable = Publishers.convertPublisher(interceptResult, Flux.class);
                        reactiveResult = flowable.doOnError(throwable -> doCount(metadata, metricName, throwable)).doOnComplete(() -> doCount(metadata, metricName, null));
                    }
                    return Publishers.convertPublisher(reactiveResult, context.getReturnType().getType());
                case COMPLETION_STAGE:
                    CompletionStage<?> completionStage = interceptedMethod.interceptResultAsCompletionStage();
                    CompletionStage<?> completionStageResult = completionStage.whenComplete((o, throwable) -> doCount(metadata, metricName, throwable));
                    return interceptedMethod.handleResult(completionStageResult);
                case SYNCHRONOUS:
                    final Object result = context.proceed();
                    try {
                        return result;
                    } finally {
                        if (metadata.isFalse(Counted.class, "recordFailuresOnly")) {
                            doCount(metadata, metricName, null);
                        }
                    }
                default:
                    return interceptedMethod.unsupported();
            }
        } catch (Exception e) {
            try {
                return interceptedMethod.handleException(e);
            } finally {
                doCount(metadata, metricName, e);
            }
        }
    }
    return context.proceed();
}

Example 5 with AnnotationMetadata

use of io.micronaut.core.annotation.AnnotationMetadata in project micronaut-micrometer by micronaut-projects.

the class TimedInterceptor method intercept.

@Override
public Object intercept(MethodInvocationContext<Object, Object> context) {
    final AnnotationMetadata metadata = context.getAnnotationMetadata();
    final AnnotationValue<TimedSet> timedSet = metadata.getAnnotation(TimedSet.class);
    if (timedSet != null) {
        final List<AnnotationValue<Timed>> timedAnnotations = timedSet.getAnnotations(AnnotationMetadata.VALUE_MEMBER, Timed.class);
        if (!timedAnnotations.isEmpty()) {
            String exceptionClass = "none";
            List<Timer.Sample> syncInvokeSamples = null;
            InterceptedMethod interceptedMethod = InterceptedMethod.of(context);
            try {
                InterceptedMethod.ResultType resultType = interceptedMethod.resultType();
                switch(resultType) {
                    case PUBLISHER:
                        Object interceptResult = context.proceed();
                        if (interceptResult == null) {
                            return null;
                        }
                        Object result;
                        AtomicReference<List<Timer.Sample>> reactiveInvokeSample = new AtomicReference<>();
                        if (context.getReturnType().isSingleResult()) {
                            Mono<?> single = Publishers.convertPublisher(interceptResult, Mono.class);
                            result = single.doOnSubscribe(d -> reactiveInvokeSample.set(initSamples(timedAnnotations))).doOnError(throwable -> finalizeSamples(timedAnnotations, throwable.getClass().getSimpleName(), reactiveInvokeSample.get())).doOnSuccess(o -> finalizeSamples(timedAnnotations, "none", reactiveInvokeSample.get()));
                        } else {
                            AtomicReference<String> exceptionClassHolder = new AtomicReference<>("none");
                            Flux<?> flowable = Publishers.convertPublisher(interceptResult, Flux.class);
                            result = flowable.doOnRequest(n -> reactiveInvokeSample.set(initSamples(timedAnnotations))).doOnError(throwable -> exceptionClassHolder.set(throwable.getClass().getSimpleName())).doOnComplete(() -> finalizeSamples(timedAnnotations, exceptionClassHolder.get(), reactiveInvokeSample.get()));
                        }
                        return Publishers.convertPublisher(result, context.getReturnType().getType());
                    case COMPLETION_STAGE:
                        List<Timer.Sample> completionStageInvokeSamples = initSamples(timedAnnotations);
                        CompletionStage<?> completionStage = interceptedMethod.interceptResultAsCompletionStage();
                        CompletionStage<?> completionStageResult = completionStage.whenComplete((o, throwable) -> finalizeSamples(timedAnnotations, throwable == null ? "none" : throwable.getClass().getSimpleName(), completionStageInvokeSamples));
                        return interceptedMethod.handleResult(completionStageResult);
                    case SYNCHRONOUS:
                        syncInvokeSamples = initSamples(timedAnnotations);
                        return context.proceed();
                    default:
                        return interceptedMethod.unsupported();
                }
            } catch (Exception e) {
                exceptionClass = e.getClass().getSimpleName();
                return interceptedMethod.handleException(e);
            } finally {
                finalizeSamples(timedAnnotations, exceptionClass, syncInvokeSamples);
            }
        }
    }
    return context.proceed();
}