Package org.kie.hacep.core.infra.consumer

Class DefaultKafkaConsumer<T>

  • All Implemented Interfaces:
    org.kie.hacep.core.infra.consumer.EventConsumer, org.kie.hacep.core.infra.election.LeadershipCallback
    public class DefaultKafkaConsumer<T>
extends Object
implements org.kie.hacep.core.infra.consumer.EventConsumer
    The default consumer relies on the Consumer thread and is based on the loop around poll method.

    • Field Detail

      • kafkaConsumer

        protected org.apache.kafka.clients.consumer.Consumer<String,​T> kafkaConsumer

      • kafkaSecondaryConsumer

        protected org.apache.kafka.clients.consumer.Consumer<String,​T> kafkaSecondaryConsumer

      • consumerHandler

        protected org.kie.hacep.consumer.DroolsConsumerHandler consumerHandler

      • envConfig

        protected org.kie.hacep.EnvConfig envConfig

      • producer

        protected org.kie.remote.impl.producer.Producer producer

      • consumerUtilsCore

        protected org.kie.hacep.util.ConsumerUtilsCore consumerUtilsCore

    • Constructor Detail

      • DefaultKafkaConsumer

        public DefaultKafkaConsumer()

      • DefaultKafkaConsumer

        public DefaultKafkaConsumer​(org.kie.hacep.EnvConfig config,
                            org.kie.remote.impl.producer.Producer producer,
                            SnapshotOnDemandUtils snapshotOnDemandUtils)

    • Method Detail

      • initKafkaConsumer

        public void initKafkaConsumer()

      • updateKafkaSecondaryConsumer

        public void updateKafkaSecondaryConsumer()

      • initConsumer

        public void initConsumer​(org.kie.hacep.core.infra.consumer.ConsumerHandler consumerHandler)
        Specified by:
        initConsumer in interface org.kie.hacep.core.infra.consumer.EventConsumer

      • restartConsumer

        protected void restartConsumer()

      • stop

        public void stop()
        Specified by:
        stop in interface org.kie.hacep.core.infra.consumer.EventConsumer

      • updateStatus

        public void updateStatus​(org.kie.hacep.core.infra.election.State state)
        Specified by:
        updateStatus in interface org.kie.hacep.core.infra.election.LeadershipCallback

      • askAndProcessSnapshotOnDemand

        protected boolean askAndProcessSnapshotOnDemand​(org.kie.hacep.core.infra.SnapshotInfos snapshotInfos)

      • assign

        protected void assign()

      • assignAsALeader

        protected void assignAsALeader()

      • assignReplica

        protected void assignReplica()

      • assignConsumer

        protected void assignConsumer​(org.apache.kafka.clients.consumer.Consumer<String,​T> kafkaConsumer,
                              String topic)

      • poll

        public void poll()
        Specified by:
        poll in interface org.kie.hacep.core.infra.consumer.EventConsumer

      • updateOnRunningConsumer

        protected void updateOnRunningConsumer​(org.kie.hacep.core.infra.election.State state)

      • restart

        protected void restart​(org.kie.hacep.core.infra.election.State state)

      • enableConsumeAndStartLoop

        protected void enableConsumeAndStartLoop​(org.kie.hacep.core.infra.election.State state)

      • setLastProcessedKey

        protected void setLastProcessedKey()

      • settingsOnAEmptyControlTopic

        protected void settingsOnAEmptyControlTopic​(org.kie.remote.message.ControlMessage lastWrapper)

      • assignAndStartConsume

        protected void assignAndStartConsume()

      • consume

        protected void consume()

      • defaultProcessAsLeader

        protected void defaultProcessAsLeader()

      • processLeader

        protected void processLeader​(org.apache.kafka.clients.consumer.ConsumerRecord<String,​T> record)

      • consumeEventsFromBufferAsALeader

        protected void consumeEventsFromBufferAsALeader()

      • handleSnapshotBetweenIteration

        protected void handleSnapshotBetweenIteration​(org.apache.kafka.clients.consumer.ConsumerRecord<String,​T> record)

      • defaultProcessAsAReplica

        protected void defaultProcessAsAReplica()

      • consumeEventsFromBufferAsAReplica

        protected void consumeEventsFromBufferAsAReplica()

      • consumeControlFromBufferAsAReplica

        protected void consumeControlFromBufferAsAReplica()

      • processEventsAsAReplica

        protected void processEventsAsAReplica​(org.apache.kafka.clients.consumer.ConsumerRecord<String,​T> record)

      • processControlAsAReplica

        protected void processControlAsAReplica​(org.apache.kafka.clients.consumer.ConsumerRecord<String,​T> record)

      • saveOffset

        protected void saveOffset​(org.apache.kafka.clients.consumer.ConsumerRecord<String,​T> record,
                          org.apache.kafka.clients.consumer.Consumer<String,​T> kafkaConsumer)

      • startConsume

        protected void startConsume()

      • stopConsume

        protected void stopConsume()

      • pollControl

        protected void pollControl()

      • pollEvents

        protected void pollEvents()