Examples with VALIDATED io.confluent.examples.streams.avro.microservices.OrderState.VALIDATED used on opensource projects

Example 1 with VALIDATED

use of io.confluent.examples.streams.avro.microservices.OrderState.VALIDATED in project kafka-streams-examples by confluentinc.

the class ValidationsAggregatorService method aggregateOrderValidations.

private KafkaStreams aggregateOrderValidations(String bootstrapServers, String stateDir) {
    // TODO put into a KTable to make dynamically configurable
    final int numberOfRules = 3;
    StreamsBuilder builder = new StreamsBuilder();
    KStream<String, OrderValidation> validations = builder.stream(ORDER_VALIDATIONS.name(), serdes1);
    KStream<String, Order> orders = builder.stream(ORDERS.name(), serdes2).filter((id, order) -> OrderState.CREATED.equals(order.getState()));
    // If all rules pass then validate the order
    validations.groupByKey(serdes3).windowedBy(SessionWindows.with(5 * MIN)).aggregate(() -> 0L, (id, result, total) -> PASS.equals(result.getValidationResult()) ? total + 1 : total, // include a merger as we're using session windows.
    (k, a, b) -> b == null ? a : b, Materialized.with(null, Serdes.Long())).toStream((windowedKey, total) -> windowedKey.key()).filter((k1, v) -> v != null).filter((k, total) -> total >= numberOfRules).join(orders, (id, order) -> newBuilder(order).setState(VALIDATED).build(), JoinWindows.of(5 * MIN), serdes4).to(ORDERS.name(), serdes5);
    // If any rule fails then fail the order
    validations.filter((id, rule) -> FAIL.equals(rule.getValidationResult())).join(orders, (id, order) -> newBuilder(order).setState(OrderState.FAILED).build(), JoinWindows.of(5 * MIN), serdes7).groupByKey(serdes6).reduce((order, v1) -> order).toStream().to(ORDERS.name(), Produced.with(ORDERS.keySerde(), ORDERS.valueSerde()));
    return new KafkaStreams(builder.build(), baseStreamsConfig(bootstrapServers, stateDir, ORDERS_SERVICE_APP_ID));
}

Example 2 with VALIDATED

use of io.confluent.examples.streams.avro.microservices.OrderState.VALIDATED in project kafka-streams-examples by confluentinc.

the class ValidationsAggregatorServiceTest method shouldAggregateRuleSuccesses.

@Test
public void shouldAggregateRuleSuccesses() throws Exception {
    // Given
    ordersService = new ValidationsAggregatorService();
    orders = asList(new Order(id(0L), 0L, CREATED, UNDERPANTS, 3, 5.00d), new Order(id(1L), 0L, CREATED, JUMPERS, 1, 75.00d));
    sendOrders(orders);
    ruleResults = asList(new OrderValidation(id(0L), OrderValidationType.FRAUD_CHECK, OrderValidationResult.PASS), new OrderValidation(id(0L), OrderValidationType.ORDER_DETAILS_CHECK, OrderValidationResult.PASS), new OrderValidation(id(0L), OrderValidationType.INVENTORY_CHECK, OrderValidationResult.PASS), new OrderValidation(id(1L), OrderValidationType.FRAUD_CHECK, OrderValidationResult.PASS), new OrderValidation(id(1L), OrderValidationType.ORDER_DETAILS_CHECK, OrderValidationResult.FAIL), new OrderValidation(id(1L), OrderValidationType.INVENTORY_CHECK, OrderValidationResult.PASS));
    sendOrderValuations(ruleResults);
    // When
    ordersService.start(CLUSTER.bootstrapServers());
    // Then
    List<KeyValue<String, Order>> finalOrders = MicroserviceTestUtils.readKeyValues(Topics.ORDERS, 4, CLUSTER.bootstrapServers());
    assertThat(finalOrders.size()).isEqualTo(4);
    // And the first order should have been validated but the second should have failed
    assertThat(finalOrders.stream().map(kv -> kv.value).collect(Collectors.toList())).contains(new Order(id(0L), 0L, VALIDATED, UNDERPANTS, 3, 5.00d), new Order(id(1L), 0L, FAILED, JUMPERS, 1, 75.00d));
}