Examples with ObjectMapperSerde io.quarkus.kafka.client.serialization.ObjectMapperSerde used on opensource projects

Example 1 with ObjectMapperSerde

use of io.quarkus.kafka.client.serialization.ObjectMapperSerde in project AD482-apps by RedHatTraining.

the class AmountWasDepositedPipeline method onStart.

void onStart(@Observes StartupEvent startupEvent) {
    StreamsBuilder builder = new StreamsBuilder();
    ObjectMapperSerde<AmountWasDeposited> depositEventSerde = new ObjectMapperSerde<>(AmountWasDeposited.class);
    ObjectMapperSerde<HighValueDepositWasDetected> highValueEventSerde = new ObjectMapperSerde<>(HighValueDepositWasDetected.class);
    // TODO: Build the stream topology
    builder.stream(AMOUNT_WAS_DEPOSITED_TOPIC, Consumed.with(Serdes.Long(), depositEventSerde)).filter((key, deposit) -> deposit.amount > 1000).map((key, deposit) -> {
        logHighValueDepositAlert(deposit.bankAccountId, deposit.amount);
        return new KeyValue<>(deposit.bankAccountId, new HighValueDepositWasDetected(deposit.bankAccountId, deposit.amount));
    }).to(HIGH_VALUE_DEPOSIT_TOPIC, Produced.with(Serdes.Long(), highValueEventSerde));
    // TODO: Create a Kafka streams and start it
    streams = new KafkaStreams(builder.build(), generateStreamConfig());
    streams.start();
}

Example 2 with ObjectMapperSerde

use of io.quarkus.kafka.client.serialization.ObjectMapperSerde in project AD482-apps by RedHatTraining.

the class BankAccountWasCreatedPipeline method onStart.

void onStart(@Observes StartupEvent startupEvent) {
    StreamsBuilder builder = new StreamsBuilder();
    ObjectMapperSerde<BankAccountWasCreated> eventSerde = new ObjectMapperSerde<>(BankAccountWasCreated.class);
    // TODO: Update the account type on each event
    builder.stream(BANK_ACCOUNT_WAS_CREATED_TOPIC, Consumed.with(Serdes.Long(), eventSerde)).foreach((key, creation) -> {
        updateAccountTypeFromEvent(creation);
    });
    // TODO: Create a Kafka streams and start it
    streams = new KafkaStreams(builder.build(), generateStreamConfig());
    streams.start();
}

Example 3 with ObjectMapperSerde

use of io.quarkus.kafka.client.serialization.ObjectMapperSerde in project AD482-apps by RedHatTraining.

the class TumblingWindows method onStart.

void onStart(@Observes StartupEvent startupEvent) {
    StreamsBuilder builder = new StreamsBuilder();
    ObjectMapperSerde<PotentialCustomersWereDetected> customersEventSerde = new ObjectMapperSerde<>(PotentialCustomersWereDetected.class);
    // TODO: Build the stream topology
    builder.stream(POTENTIAL_CUSTOMERS_TOPIC, Consumed.with(Serdes.String(), customersEventSerde)).groupByKey().windowedBy(TimeWindows.of(Duration.ofSeconds(WINDOW_SIZE)).grace(Duration.ofSeconds(12))).count().toStream().print(Printed.toSysOut());
    streams = new KafkaStreams(builder.build(), generateStreamConfig());
    streams.start();
}

Example 4 with ObjectMapperSerde

use of io.quarkus.kafka.client.serialization.ObjectMapperSerde in project AD482-apps by RedHatTraining.

the class StreamTopologyBuilder method buildTopology.

@Produces
public Topology buildTopology() {
    StreamsBuilder builder = new StreamsBuilder();
    ObjectMapperSerde<WindTurbine> turbineSerde = new ObjectMapperSerde<>(WindTurbine.class);
    builder.table("turbines", Consumed.with(Serdes.Integer(), turbineSerde), Materialized.<Integer, WindTurbine, KeyValueStore<Bytes, byte[]>>as("turbines-store").withKeySerde(Serdes.Integer()).withValueSerde(turbineSerde));
    KStream<Integer, Integer> wattsValuesStream = builder.stream("turbine-generated-watts", Consumed.with(Serdes.Integer(), Serdes.Integer()));
    ObjectMapperSerde<MWattsMeasurement> mwattsMeasurementSerde = new ObjectMapperSerde<>(MWattsMeasurement.class);
    wattsValuesStream.map((turbineId, watts) -> {
        Double megawatts = (double) watts / 1000000;
        MWattsMeasurement measurement = new MWattsMeasurement(turbineId, megawatts);
        System.out.println("MAP - Turbine: " + turbineId + " | " + watts + " Watts -> " + megawatts + " MWatts");
        return KeyValue.pair(turbineId, measurement);
    }).to("turbine-generated-mwatts", Produced.with(Serdes.Integer(), mwattsMeasurementSerde));
    ObjectMapperSerde<WindTurbineStats> statsSerde = new ObjectMapperSerde<>(WindTurbineStats.class);
    wattsValuesStream.groupByKey().windowedBy(TimeWindows.of(Duration.ofSeconds(10)).advanceBy(Duration.ofSeconds(10)).grace(Duration.ofSeconds(12))).count().suppress(Suppressed.untilWindowCloses(unbounded())).toStream().map((windowedTurbineId, count) -> {
        Integer turbineId = windowedTurbineId.key();
        WindTurbineStats stats = new WindTurbineStats(turbineId, count);
        System.out.println("COUNT - Turbine: " + turbineId + " | Count:" + count);
        return KeyValue.pair(turbineId, stats);
    }).to("turbine-stats", Produced.with(Serdes.Integer(), statsSerde));
    return builder.build();
}

Example 5 with ObjectMapperSerde

use of io.quarkus.kafka.client.serialization.ObjectMapperSerde in project AD482-apps by RedHatTraining.

the class StreamTopologyBuilderTest method setup.

@BeforeEach
public void setup() {
    // TODO: create the test driver
    StreamTopologyBuilder builder = new StreamTopologyBuilder();
    testDriver = new TopologyTestDriver(builder.buildTopology());
    // TODO: Create test topics
    wattsStream = testDriver.createInputTopic("turbine-generated-watts", new IntegerSerializer(), new IntegerSerializer());
    ObjectMapperSerde<MWattsMeasurement> measurementSerde = new ObjectMapperSerde<>(MWattsMeasurement.class);
    measurementsStream = testDriver.createOutputTopic("turbine-generated-mwatts", new IntegerDeserializer(), measurementSerde.deserializer());
}