Package io.smallrye.reactive.messaging.kafka

Class KafkaConnectorIncomingConfiguration

    • Constructor Detail

      • KafkaConnectorIncomingConfiguration

        public KafkaConnectorIncomingConfiguration​(org.eclipse.microprofile.config.Config config)
        Creates a new KafkaConnectorIncomingConfiguration.

    • Method Detail

      • getTopics

        public Optional<String> getTopics()
        Gets the topics value from the configuration. Attribute Name: topics Description: A comma-separating list of topics to be consumed. Cannot be used with the `topic` or `pattern` properties
        Returns:
        the topics

      • getPattern

        public Boolean getPattern()
        Gets the pattern value from the configuration. Attribute Name: pattern Description: Indicate that the `topic` property is a regular expression. Must be used with the `topic` property. Cannot be used with the `topics` property Default Value: false
        Returns:
        the pattern

      • getKeyDeserializer

        public String getKeyDeserializer()
        Gets the key.deserializer value from the configuration. Attribute Name: key.deserializer Description: The deserializer classname used to deserialize the record's key Default Value: org.apache.kafka.common.serialization.StringDeserializer
        Returns:
        the key.deserializer

      • getValueDeserializer

        public String getValueDeserializer()
        Gets the value.deserializer value from the configuration. Attribute Name: value.deserializer Description: The deserializer classname used to deserialize the record's value Mandatory: yes
        Returns:
        the value.deserializer

      • getFetchMinBytes

        public Integer getFetchMinBytes()
        Gets the fetch.min.bytes value from the configuration. Attribute Name: fetch.min.bytes Description: The minimum amount of data the server should return for a fetch request. The default setting of 1 byte means that fetch requests are answered as soon as a single byte of data is available or the fetch request times out waiting for data to arrive. Default Value: 1
        Returns:
        the fetch.min.bytes

      • getGroupId

        public Optional<String> getGroupId()
        Gets the group.id value from the configuration. Attribute Name: group.id Description: A unique string that identifies the consumer group the application belongs to. If not set, a unique, generated id is used
        Returns:
        the group.id

      • getEnableAutoCommit

        public Boolean getEnableAutoCommit()
        Gets the enable.auto.commit value from the configuration. Attribute Name: enable.auto.commit Description: If enabled, consumer's offset will be periodically committed in the background by the underlying Kafka client, ignoring the actual processing outcome of the records. It is recommended to NOT enable this setting and let Reactive Messaging handles the commit. Default Value: false
        Returns:
        the enable.auto.commit

      • getRetry

        public Boolean getRetry()
        Gets the retry value from the configuration. Attribute Name: retry Description: Whether or not the connection to the broker is re-attempted in case of failure Default Value: true
        Returns:
        the retry

      • getRetryAttempts

        public Integer getRetryAttempts()
        Gets the retry-attempts value from the configuration. Attribute Name: retry-attempts Description: The maximum number of reconnection before failing. -1 means infinite retry Default Value: -1
        Returns:
        the retry-attempts

      • getRetryMaxWait

        public Integer getRetryMaxWait()
        Gets the retry-max-wait value from the configuration. Attribute Name: retry-max-wait Description: The max delay (in seconds) between 2 reconnects Default Value: 30
        Returns:
        the retry-max-wait

      • getBroadcast

        public Boolean getBroadcast()
        Gets the broadcast value from the configuration. Attribute Name: broadcast Description: Whether the Kafka records should be dispatched to multiple consumer Default Value: false
        Returns:
        the broadcast

      • getAutoOffsetReset

        public String getAutoOffsetReset()
        Gets the auto.offset.reset value from the configuration. Attribute Name: auto.offset.reset Description: What to do when there is no initial offset in Kafka.Accepted values are earliest, latest and none Default Value: latest
        Returns:
        the auto.offset.reset

      • getFailureStrategy

        public String getFailureStrategy()
        Gets the failure-strategy value from the configuration. Attribute Name: failure-strategy Description: Specify the failure strategy to apply when a message produced from a record is acknowledged negatively (nack). Values can be `fail` (default), `ignore`, or `dead-letter-queue` Default Value: fail
        Returns:
        the failure-strategy

      • getCommitStrategy

        public Optional<String> getCommitStrategy()
        Gets the commit-strategy value from the configuration. Attribute Name: commit-strategy Description: Specify the commit strategy to apply when a message produced from a record is acknowledged. Values can be `latest`, `ignore` or `throttled`. If `enable.auto.commit` is true then the default is `ignore` otherwise it is `throttled`
        Returns:
        the commit-strategy

      • getThrottledUnprocessedRecordMaxAgeMs

        public Integer getThrottledUnprocessedRecordMaxAgeMs()
        Gets the throttled.unprocessed-record-max-age.ms value from the configuration. Attribute Name: throttled.unprocessed-record-max-age.ms Description: While using the `throttled` commit-strategy, specify the max age in milliseconds that an unprocessed message can be before the connector is marked as unhealthy. Setting this attribute to 0 disables this monitoring. Default Value: 60000
        Returns:
        the throttled.unprocessed-record-max-age.ms

      • getDeadLetterQueueTopic

        public Optional<String> getDeadLetterQueueTopic()
        Gets the dead-letter-queue.topic value from the configuration. Attribute Name: dead-letter-queue.topic Description: When the `failure-strategy` is set to `dead-letter-queue` indicates on which topic the record is sent. Defaults is `dead-letter-topic-$channel`
        Returns:
        the dead-letter-queue.topic

      • getDeadLetterQueueKeySerializer

        public Optional<String> getDeadLetterQueueKeySerializer()
        Gets the dead-letter-queue.key.serializer value from the configuration. Attribute Name: dead-letter-queue.key.serializer Description: When the `failure-strategy` is set to `dead-letter-queue` indicates the key serializer to use. If not set the serializer associated to the key deserializer is used
        Returns:
        the dead-letter-queue.key.serializer

      • getDeadLetterQueueValueSerializer

        public Optional<String> getDeadLetterQueueValueSerializer()
        Gets the dead-letter-queue.value.serializer value from the configuration. Attribute Name: dead-letter-queue.value.serializer Description: When the `failure-strategy` is set to `dead-letter-queue` indicates the value serializer to use. If not set the serializer associated to the value deserializer is used
        Returns:
        the dead-letter-queue.value.serializer

      • getPartitions

        public Integer getPartitions()
        Gets the partitions value from the configuration. Attribute Name: partitions Description: The number of partitions to be consumed concurrently. The connector creates the specified amount of Kafka consumers. It should match the number of partition of the targeted topic Default Value: 1
        Returns:
        the partitions

      • getRequests

        public Integer getRequests()
        Gets the requests value from the configuration. Attribute Name: requests Description: When `partitions` is greater than 1, this attribute allows configuring how many records are requested by each consumers every time. Default Value: 128
        Returns:
        the requests

      • getConsumerRebalanceListenerName

        public Optional<String> getConsumerRebalanceListenerName()
        Gets the consumer-rebalance-listener.name value from the configuration. Attribute Name: consumer-rebalance-listener.name Description: The name set in `@Identifier` of a bean that implements `io.smallrye.reactive.messaging.kafka.KafkaConsumerRebalanceListener`. If set, this rebalance listener is applied to the consumer.
        Returns:
        the consumer-rebalance-listener.name

      • getKeyDeserializationFailureHandler

        public Optional<String> getKeyDeserializationFailureHandler()
        Gets the key-deserialization-failure-handler value from the configuration. Attribute Name: key-deserialization-failure-handler Description: The name set in `@Identifier` of a bean that implements `io.smallrye.reactive.messaging.kafka.DeserializationFailureHandler`. If set, deserialization failure happening when deserializing keys are delegated to this handler which may retry or provide a fallback value.
        Returns:
        the key-deserialization-failure-handler

      • getValueDeserializationFailureHandler

        public Optional<String> getValueDeserializationFailureHandler()
        Gets the value-deserialization-failure-handler value from the configuration. Attribute Name: value-deserialization-failure-handler Description: The name set in `@Identifier` of a bean that implements `io.smallrye.reactive.messaging.kafka.DeserializationFailureHandler`. If set, deserialization failure happening when deserializing values are delegated to this handler which may retry or provide a fallback value.
        Returns:
        the value-deserialization-failure-handler

      • getFailOnDeserializationFailure

        public Boolean getFailOnDeserializationFailure()
        Gets the fail-on-deserialization-failure value from the configuration. Attribute Name: fail-on-deserialization-failure Description: When no deserialization failure handler is set and a deserialization failure happens, report the failure and mark the application as unhealthy. If set to `false` and a deserialization failure happens, a `null` value is forwarded. Default Value: true
        Returns:
        the fail-on-deserialization-failure

      • getGracefulShutdown

        public Boolean getGracefulShutdown()
        Gets the graceful-shutdown value from the configuration. Attribute Name: graceful-shutdown Description: Whether or not a graceful shutdown should be attempted when the application terminates. Default Value: true
        Returns:
        the graceful-shutdown

      • getPollTimeout

        public Integer getPollTimeout()
        Gets the poll-timeout value from the configuration. Attribute Name: poll-timeout Description: The polling timeout in milliseconds. When polling records, the poll will wait at most that duration before returning records. Default is 1000ms Default Value: 1000
        Returns:
        the poll-timeout

      • getPauseIfNoRequests

        public Boolean getPauseIfNoRequests()
        Gets the pause-if-no-requests value from the configuration. Attribute Name: pause-if-no-requests Description: Whether the polling must be paused when the application does not request items and resume when it does. This allows implementing back-pressure based on the application capacity. Note that polling is not stopped, but will not retrieve any records when paused. Default Value: true
        Returns:
        the pause-if-no-requests

      • getBatch

        public Boolean getBatch()
        Gets the batch value from the configuration. Attribute Name: batch Description: Whether the Kafka records are consumed in batch. The channel injection point must consume a compatible type, such as `List` or `KafkaRecordBatch`. Default Value: false
        Returns:
        the batch

      • getMaxQueueSizeFactor

        public Integer getMaxQueueSizeFactor()
        Gets the max-queue-size-factor value from the configuration. Attribute Name: max-queue-size-factor Description: Multiplier factor to determine maximum number of records queued for processing, using `max.poll.records` * `max-queue-size-factor`. Defaults to 2. In `batch` mode `max.poll.records` is considered `1`. Default Value: 2
        Returns:
        the max-queue-size-factor