Package io.streamthoughts.azkarra.api.streams

Class KafkaStreamsContainer

  • public class KafkaStreamsContainer
extends Object

    • Method Detail

      • start

        public Future<org.apache.kafka.streams.KafkaStreams.State> start​(Executor executor)
         Asynchronously start the underlying KafkaStreams instance.
        Parameters:
        executor - the Executor instance to be used for starting the streams.
        Returns:
        the future KafkaStreams.State of the streams.

      • setState

        public void setState​(State state)
        Sets the current state of the streams.
        Parameters:
        state - the KafkaStreams state.

      • getDefaultKeySerde

        public Optional<org.apache.kafka.common.serialization.Serde> getDefaultKeySerde()
        Gets the default Serde configured for key.
        Returns:
        a optional Serde instance.

      • threadMetadata

        public Set<org.apache.kafka.streams.processor.ThreadMetadata> threadMetadata()
        Gets the local thread metadata.
        Returns:
        a set of ThreadMetadata instance.

      • startedSince

        public long startedSince()
        Gets the started epoch-time in milliseconds.
        Returns:
        a unix epoch-time in milliseconds.

      • streamsConfig

        public Conf streamsConfig()
        Gets the configuration for this KafkaStreams instance.
        Returns:
        a Conf instance.

      • applicationId

        public String applicationId()
        Gets configured StreamsConfig.APPLICATION_ID_CONFIG for this KafkaStreams instance.
        Returns:
        a string application.id.

      • applicationServer

        public String applicationServer()
        Gets configured StreamsConfig.APPLICATION_SERVER_CONFIG for this KafkaStreams instance.
        Returns:
        a string application.server.

      • exception

        public Optional<Throwable> exception()
        Gets the last observed exception thrown the KafkaStreams instance.
        Returns:
        a Throwable instance.

      • topologyDescription

        public org.apache.kafka.streams.TopologyDescription topologyDescription()
        Gets the TopologyDescription for this KafkaStreams instance.
        Returns:
        a new TopologyDescription instance.

      • metrics

        public Map<org.apache.kafka.common.MetricName,​? extends org.apache.kafka.common.Metric> metrics()
        Gets all the current Metrics for this KafkaStreams instance.
        Returns:
        a map of Metric.

      • offsets

        public ConsumerGroupOffsets offsets()
        Gets the offsets for the topic/partitions assigned to this KafkaStreams instance. If the KafkaStreams instance is not running then no offsets will be computed.
        Returns:
        the ConsumerGroupOffsets.

      • getProducer

        public org.apache.kafka.clients.producer.Producer<byte[],​byte[]> getProducer​(Map<String,​Object> overrides)
        Creates a new Producer instance using the same configs that the Kafka Streams instance.
        Parameters:
        overrides - the producer configs to overrides.

      • close

        public void close​(Duration timeout)
        Closes this KafkaStreams instance.

      • close

        public void close​(boolean cleanUp,
                  Duration timeout)
        Closes this KafkaStreams instance and wait up to the timeout for the streams to be closed. A timeout of 0 means to return immediately (i.e Duration.ZERO
        Parameters:
        cleanUp - flag to clean up the local streams states.
        timeout - the duration to wait for the streams to shutdown.

      • restart

        public void restart()

      • getMetadataForStoreAndKey

        public <K> Optional<StreamsServerInfo> getMetadataForStoreAndKey​(String storeName,
                                                                 K key,
                                                                 org.apache.kafka.common.serialization.Serializer<K> keySerializer)

      • getLocalKeyValueStore

        public <K,​V> LocalStoreAccessor<org.apache.kafka.streams.state.ReadOnlyKeyValueStore<K,​V>> getLocalKeyValueStore​(String storeName)

      • getLocalTimestampedKeyValueStore

        public <K,​V> LocalStoreAccessor<org.apache.kafka.streams.state.ReadOnlyKeyValueStore<K,​org.apache.kafka.streams.state.ValueAndTimestamp<V>>> getLocalTimestampedKeyValueStore​(String storeName)

      • getLocalWindowStore

        public <K,​V> LocalStoreAccessor<org.apache.kafka.streams.state.ReadOnlyWindowStore<K,​V>> getLocalWindowStore​(String storeName)

      • getLocalTimestampedWindowStore

        public <K,​V> LocalStoreAccessor<org.apache.kafka.streams.state.ReadOnlyWindowStore<K,​org.apache.kafka.streams.state.ValueAndTimestamp<V>>> getLocalTimestampedWindowStore​(String storeName)

      • getLocalSessionStore

        public <K,​V> LocalStoreAccessor<org.apache.kafka.streams.state.ReadOnlySessionStore<K,​V>> getLocalSessionStore​(String storeName)

      • isNotRunning

        public boolean isNotRunning()
        Checks if the KafkaStreams is neither RUNNING nor REBALANCING.
        Returns:
        true if no KafkaStreams is initialized.

      • getKafkaStreams

        public org.apache.kafka.streams.KafkaStreams getKafkaStreams()
        Returns the wrapper KafkaStreams instance.
        Returns:
        the KafkaStreams.