Examples with JsonSerdeV2 org.apache.samza.serializers.JsonSerdeV2 used on opensource projects

Example 11 with JsonSerdeV2

use of org.apache.samza.serializers.JsonSerdeV2 in project samza by apache.

the class BroadcastExample method describe.

@Override
public void describe(StreamApplicationDescriptor appDescriptor) {
    KVSerde<String, PageViewEvent> serde = KVSerde.of(new StringSerde("UTF-8"), new JsonSerdeV2<>(PageViewEvent.class));
    KafkaSystemDescriptor trackingSystem = new KafkaSystemDescriptor("tracking");
    KafkaInputDescriptor<KV<String, PageViewEvent>> pageViewEvent = trackingSystem.getInputDescriptor("pageViewEvent", serde);
    KafkaOutputDescriptor<KV<String, PageViewEvent>> outStream1 = trackingSystem.getOutputDescriptor("outStream1", serde);
    KafkaOutputDescriptor<KV<String, PageViewEvent>> outStream2 = trackingSystem.getOutputDescriptor("outStream2", serde);
    KafkaOutputDescriptor<KV<String, PageViewEvent>> outStream3 = trackingSystem.getOutputDescriptor("outStream3", serde);
    MessageStream<KV<String, PageViewEvent>> inputStream = appDescriptor.getInputStream(pageViewEvent);
    inputStream.filter(m -> m.key.equals("key1")).sendTo(appDescriptor.getOutputStream(outStream1));
    inputStream.filter(m -> m.key.equals("key2")).sendTo(appDescriptor.getOutputStream(outStream2));
    inputStream.filter(m -> m.key.equals("key3")).sendTo(appDescriptor.getOutputStream(outStream3));
}

Example 12 with JsonSerdeV2

use of org.apache.samza.serializers.JsonSerdeV2 in project samza by apache.

the class OrderShipmentJoinExample method describe.

@Override
public void describe(StreamApplicationDescriptor appDescriptor) {
    KafkaSystemDescriptor trackingSystem = new KafkaSystemDescriptor("tracking");
    KafkaInputDescriptor<OrderRecord> orderStreamDescriptor = trackingSystem.getInputDescriptor("orders", new JsonSerdeV2<>(OrderRecord.class));
    KafkaInputDescriptor<ShipmentRecord> shipmentStreamDescriptor = trackingSystem.getInputDescriptor("shipments", new JsonSerdeV2<>(ShipmentRecord.class));
    KafkaOutputDescriptor<KV<String, FulfilledOrderRecord>> fulfilledOrdersStreamDescriptor = trackingSystem.getOutputDescriptor("fulfilledOrders", KVSerde.of(new StringSerde(), new JsonSerdeV2<>(FulfilledOrderRecord.class)));
    appDescriptor.getInputStream(orderStreamDescriptor).join(appDescriptor.getInputStream(shipmentStreamDescriptor), new MyJoinFunction(), new StringSerde(), new JsonSerdeV2<>(OrderRecord.class), new JsonSerdeV2<>(ShipmentRecord.class), Duration.ofMinutes(1), "join").map(fulFilledOrder -> KV.of(fulFilledOrder.orderId, fulFilledOrder)).sendTo(appDescriptor.getOutputStream(fulfilledOrdersStreamDescriptor));
}

Example 13 with JsonSerdeV2

use of org.apache.samza.serializers.JsonSerdeV2 in project samza by apache.

the class RepartitionExample method describe.

@Override
public void describe(StreamApplicationDescriptor appDescriptor) {
    KafkaSystemDescriptor trackingSystem = new KafkaSystemDescriptor("tracking");
    KafkaInputDescriptor<PageViewEvent> inputStreamDescriptor = trackingSystem.getInputDescriptor("pageViewEvent", new JsonSerdeV2<>(PageViewEvent.class));
    KafkaOutputDescriptor<KV<String, MyStreamOutput>> outputStreamDescriptor = trackingSystem.getOutputDescriptor("pageViewEventPerMember", KVSerde.of(new StringSerde(), new JsonSerdeV2<>(MyStreamOutput.class)));
    appDescriptor.withDefaultSystem(trackingSystem);
    MessageStream<PageViewEvent> pageViewEvents = appDescriptor.getInputStream(inputStreamDescriptor);
    OutputStream<KV<String, MyStreamOutput>> pageViewEventPerMember = appDescriptor.getOutputStream(outputStreamDescriptor);
    pageViewEvents.partitionBy(pve -> pve.getMemberId(), pve -> pve, KVSerde.of(new StringSerde(), new JsonSerdeV2<>(PageViewEvent.class)), "partitionBy").window(Windows.keyedTumblingWindow(KV::getKey, Duration.ofMinutes(5), () -> 0, (m, c) -> c + 1, null, null), "window").map(windowPane -> KV.of(windowPane.getKey().getKey(), new MyStreamOutput(windowPane))).sendTo(pageViewEventPerMember);
}

Example 14 with JsonSerdeV2

use of org.apache.samza.serializers.JsonSerdeV2 in project samza by apache.

the class AsyncApplicationExample method describe.

@Override
public void describe(StreamApplicationDescriptor appDescriptor) {
    KafkaSystemDescriptor trackingSystem = new KafkaSystemDescriptor("tracking");
    KafkaInputDescriptor<AdClickEvent> inputStreamDescriptor = trackingSystem.getInputDescriptor("adClickEvent", new JsonSerdeV2<>(AdClickEvent.class));
    KafkaOutputDescriptor<KV<String, EnrichedAdClickEvent>> outputStreamDescriptor = trackingSystem.getOutputDescriptor("enrichedAdClickEvent", KVSerde.of(new StringSerde(), new JsonSerdeV2<>(EnrichedAdClickEvent.class)));
    MessageStream<AdClickEvent> adClickEventStream = appDescriptor.getInputStream(inputStreamDescriptor);
    OutputStream<KV<String, EnrichedAdClickEvent>> enrichedAdClickStream = appDescriptor.getOutputStream(outputStreamDescriptor);
    adClickEventStream.flatMapAsync(AsyncApplicationExample::enrichAdClickEvent).map(enrichedAdClickEvent -> KV.of(enrichedAdClickEvent.getCountry(), enrichedAdClickEvent)).sendTo(enrichedAdClickStream);
}

Example 15 with JsonSerdeV2

use of org.apache.samza.serializers.JsonSerdeV2 in project samza by apache.

the class KinesisSystemConsumerOffset method parse.

static KinesisSystemConsumerOffset parse(String metadata) {
    JsonSerdeV2<KinesisSystemConsumerOffset> jsonSerde = new JsonSerdeV2<>(KinesisSystemConsumerOffset.class);
    byte[] bytes;
    try {
        bytes = metadata.getBytes("UTF-8");
    } catch (Exception e) {
        throw new SamzaException(e);
    }
    return jsonSerde.fromBytes(bytes);
}