Examples with KafkaCache io.aklivity.zilla.runtime.binding.kafka.internal.cache.KafkaCache used on opensource projects

Example 6 with KafkaCache

use of io.aklivity.zilla.runtime.binding.kafka.internal.cache.KafkaCache in project zilla by aklivity.

the class KafkaCacheServerFetchFactory method newStream.

@Override
public MessageConsumer newStream(int msgTypeId, DirectBuffer buffer, int index, int length, MessageConsumer sender) {
    final BeginFW begin = beginRO.wrap(buffer, index, index + length);
    final long routeId = begin.routeId();
    final long initialId = begin.streamId();
    final long affinity = begin.affinity();
    final long authorization = begin.authorization();
    assert (initialId & 0x0000_0000_0000_0001L) != 0L;
    final OctetsFW extension = begin.extension();
    final ExtensionFW beginEx = extension.get(extensionRO::wrap);
    assert beginEx != null && beginEx.typeId() == kafkaTypeId;
    final KafkaBeginExFW kafkaBeginEx = extension.get(kafkaBeginExRO::wrap);
    final KafkaFetchBeginExFW kafkaFetchBeginEx = kafkaBeginEx.fetch();
    final String16FW beginTopic = kafkaFetchBeginEx.topic();
    final KafkaOffsetFW progress = kafkaFetchBeginEx.partition();
    final int partitionId = progress.partitionId();
    final long partitionOffset = progress.partitionOffset();
    final KafkaDeltaType deltaType = kafkaFetchBeginEx.deltaType().get();
    final String topicName = beginTopic.asString();
    MessageConsumer newStream = null;
    final KafkaBindingConfig binding = supplyBinding.apply(routeId);
    final KafkaRouteConfig resolved = binding != null ? binding.resolve(authorization, topicName) : null;
    if (resolved != null) {
        final long resolvedId = resolved.id;
        final KafkaCacheRoute cacheRoute = supplyCacheRoute.apply(resolvedId);
        final long partitionKey = cacheRoute.topicPartitionKey(topicName, partitionId);
        KafkaCacheServerFetchFanout fanout = cacheRoute.serverFetchFanoutsByTopicPartition.get(partitionKey);
        if (fanout == null) {
            final KafkaTopicConfig topic = binding.topic(topicName);
            final KafkaDeltaType routeDeltaType = topic != null ? topic.deltaType : deltaType;
            final KafkaOffsetType defaultOffset = topic != null ? topic.defaultOffset : HISTORICAL;
            final String cacheName = String.format("%s.%s", supplyNamespace.apply(routeId), supplyLocalName.apply(routeId));
            final KafkaCache cache = supplyCache.apply(cacheName);
            final KafkaCacheTopic cacheTopic = cache.supplyTopic(topicName);
            final KafkaCachePartition partition = cacheTopic.supplyFetchPartition(partitionId);
            final KafkaCacheServerFetchFanout newFanout = new KafkaCacheServerFetchFanout(resolvedId, authorization, affinity, partition, routeDeltaType, defaultOffset);
            cacheRoute.serverFetchFanoutsByTopicPartition.put(partitionKey, newFanout);
            fanout = newFanout;
        }
        final int leaderId = cacheRoute.leadersByPartitionId.get(partitionId);
        newStream = new KafkaCacheServerFetchStream(fanout, sender, routeId, initialId, leaderId, authorization, partitionOffset)::onServerMessage;
    }
    return newStream;
}

Example 7 with KafkaCache

use of io.aklivity.zilla.runtime.binding.kafka.internal.cache.KafkaCache in project zilla by aklivity.

the class KafkaCacheServerDescribeFactory method newStream.

@Override
public MessageConsumer newStream(int msgTypeId, DirectBuffer buffer, int index, int length, MessageConsumer sender) {
    final BeginFW begin = beginRO.wrap(buffer, index, index + length);
    final long routeId = begin.routeId();
    final long initialId = begin.streamId();
    final long authorization = begin.authorization();
    final long affinity = begin.affinity();
    assert (initialId & 0x0000_0000_0000_0001L) != 0L;
    final OctetsFW extension = begin.extension();
    final ExtensionFW beginEx = extension.get(extensionRO::tryWrap);
    assert beginEx != null && beginEx.typeId() == kafkaTypeId;
    final KafkaBeginExFW kafkaBeginEx = extension.get(kafkaBeginExRO::tryWrap);
    assert kafkaBeginEx.kind() == KafkaBeginExFW.KIND_DESCRIBE;
    final KafkaDescribeBeginExFW kafkaDescribeBeginEx = kafkaBeginEx.describe();
    final String16FW beginTopic = kafkaDescribeBeginEx.topic();
    final String topicName = beginTopic.asString();
    MessageConsumer newStream = null;
    final KafkaBindingConfig binding = supplyBinding.apply(routeId);
    final KafkaRouteConfig resolved = binding != null ? binding.resolve(authorization, topicName) : null;
    if (resolved != null) {
        final long resolvedId = resolved.id;
        final KafkaCacheRoute cacheRoute = supplyCacheRoute.apply(resolvedId);
        final int topicKey = cacheRoute.topicKey(topicName);
        KafkaCacheServerDescribeFanout fanout = cacheRoute.serverDescribeFanoutsByTopic.get(topicKey);
        if (fanout == null) {
            final String cacheName = String.format("%s.%s", supplyNamespace.apply(routeId), supplyLocalName.apply(routeId));
            final KafkaCache cache = supplyCache.apply(cacheName);
            final KafkaCacheTopic topic = cache.supplyTopic(topicName);
            final List<String> configNames = new ArrayList<>();
            kafkaDescribeBeginEx.configs().forEach(c -> configNames.add(c.asString()));
            final KafkaCacheServerDescribeFanout newFanout = new KafkaCacheServerDescribeFanout(resolvedId, authorization, topic, configNames);
            cacheRoute.serverDescribeFanoutsByTopic.put(topicKey, newFanout);
            fanout = newFanout;
        }
        if (fanout != null) {
            newStream = new KafkaCacheServerDescribeStream(fanout, sender, routeId, initialId, affinity, authorization)::onDescribeMessage;
        }
    }
    return newStream;
}