Examples with CloudEventMetadata io.smallrye.reactive.messaging.ce.CloudEventMetadata used on opensource projects

Example 1 with CloudEventMetadata

use of io.smallrye.reactive.messaging.ce.CloudEventMetadata in project smallrye-reactive-messaging by smallrye.

the class KafkaSourceWithCloudEventsTest method testReceivingStructuredCloudEventsWithoutMatchingContentTypeIsNotReadACloudEvent.

@SuppressWarnings("unchecked")
@Test
public void testReceivingStructuredCloudEventsWithoutMatchingContentTypeIsNotReadACloudEvent() {
    KafkaMapBasedConfig config = newCommonConfig();
    config.put("topic", topic);
    config.put("value.deserializer", StringDeserializer.class.getName());
    config.put("channel-name", topic);
    KafkaConnectorIncomingConfiguration ic = new KafkaConnectorIncomingConfiguration(config);
    source = new KafkaSource<>(vertx, UUID.randomUUID().toString(), ic, UnsatisfiedInstance.instance(), CountKafkaCdiEvents.noCdiEvents, UnsatisfiedInstance.instance(), -1);
    List<Message<?>> messages = new ArrayList<>();
    source.getStream().subscribe().with(messages::add);
    companion.produceStrings().fromRecords(new ProducerRecord<>(topic, null, null, "key", new JsonObject().put("specversion", CloudEventMetadata.CE_VERSION_1_0).put("type", "type").put("id", "id").put("source", "test://test").put("data", new JsonObject().put("name", "neo")).encode(), Collections.singletonList(new RecordHeader("content-type", "application/json; charset=utf-8".getBytes()))));
    await().atMost(2, TimeUnit.MINUTES).until(() -> messages.size() >= 1);
    Message<?> message = messages.get(0);
    IncomingKafkaCloudEventMetadata<String, JsonObject> metadata = message.getMetadata(IncomingKafkaCloudEventMetadata.class).orElse(null);
    assertThat(metadata).isNull();
    CloudEventMetadata<JsonObject> metadata2 = message.getMetadata(CloudEventMetadata.class).orElse(null);
    assertThat(metadata2).isNull();
    assertThat(message.getPayload()).isInstanceOf(String.class);
    JsonObject json = new JsonObject(message.getPayload().toString());
    assertThat(json.getString("id")).isEqualTo("id");
}

Example 2 with CloudEventMetadata

use of io.smallrye.reactive.messaging.ce.CloudEventMetadata in project smallrye-reactive-messaging by smallrye.

the class KafkaCloudEventHelper method createFromBinaryCloudEvent.

public static <T, K> IncomingKafkaCloudEventMetadata<K, T> createFromBinaryCloudEvent(ConsumerRecord<?, T> record) {
    DefaultCloudEventMetadataBuilder<T> builder = new DefaultCloudEventMetadataBuilder<>();
    // Build a map containing all the headers
    // We remove the entry at each access to filter out extension attribute.
    Map<String, String> headers = new HashMap<>();
    record.headers().forEach(kh -> {
        String key = kh.key();
        // Rules 3.2.3 - Force UTF-8
        String value = new String(kh.value(), StandardCharsets.UTF_8);
        headers.put(key, value);
    });
    // Required
    builder.withSpecVersion(headers.remove(KAFKA_HEADER_FOR_SPEC_VERSION));
    builder.withId(headers.remove(KAFKA_HEADER_FOR_ID));
    String source = headers.remove(KAFKA_HEADER_FOR_SOURCE);
    if (source == null) {
        throw new IllegalArgumentException("The Kafka record must contain the " + KAFKA_HEADER_FOR_SOURCE + " header");
    }
    builder.withSource(URI.create(source));
    builder.withType(headers.remove(KAFKA_HEADER_FOR_TYPE));
    // Optional
    // Rules 3.2.1 - Set datacontenttype to the record's content type header
    String ct = headers.remove(KAFKA_HEADER_CONTENT_TYPE);
    if (ct != null) {
        builder.withDataContentType(ct);
    }
    String schema = headers.remove(KAFKA_HEADER_FOR_SCHEMA);
    if (schema != null) {
        builder.withDataSchema(URI.create(schema));
    }
    String subject = headers.remove(KAFKA_HEADER_FOR_SUBJECT);
    if (subject != null) {
        builder.withSubject(subject);
    }
    String time = headers.remove(KAFKA_HEADER_FOR_TIME);
    if (time != null) {
        ZonedDateTime parse = ZonedDateTime.parse(time, RFC3339_DATE_FORMAT);
        builder.withTimestamp(parse);
    }
    // Extensions
    if (record.key() != null) {
        builder.withExtension(CE_KAFKA_KEY, record.key());
    }
    builder.withExtension(CE_KAFKA_TOPIC, record.topic());
    headers.entrySet().stream().filter(entry -> entry.getKey().startsWith(CE_HEADER_PREFIX)).forEach(entry -> {
        String key = entry.getKey().substring(CE_HEADER_PREFIX.length());
        // Implementation choice: Extension attributes are stored as String.
        builder.withExtension(key, entry.getValue());
    });
    // Data
    builder.withData(record.value());
    BaseCloudEventMetadata<T> cloudEventMetadata = builder.build();
    return new DefaultIncomingKafkaCloudEventMetadata<>(new DefaultIncomingCloudEventMetadata<>(cloudEventMetadata));
}