Struct DefaultConsumerContext

pub struct DefaultConsumerContext;

An inert ConsumerContext that can be used when no customizations are needed.

Trait Implementations

impl ClientContext for DefaultConsumerContext

fn enable_refresh_oauth_token(&self) -> bool

Whether to periodically refresh the SASL OAUTHBEARER token by calling ClientContext::generate_oauth_token.

fn log(&self, level: RDKafkaLogLevel, fac: &str, log_message: &str)

Receives log lines from librdkafka.

fn stats(&self, statistics: Statistics)

Receives the decoded statistics of the librdkafka client. To enable, the statistics.interval.ms configuration parameter must be specified.

fn stats_raw(&self, statistics: &[u8])

Receives the JSON-encoded statistics of the librdkafka client. To enable, the statistics.interval.ms configuration parameter must be specified.

fn error(&self, error: KafkaError, reason: &str)

Receives global errors from the librdkafka client.

fn rewrite_broker_addr(&self, addr: BrokerAddr) -> BrokerAddr

Rewrites a broker address for DNS resolution.

fn generate_oauth_token( &self, _oauthbearer_config: Option<&str>, ) -> Result<OAuthToken, Box<dyn Error>>

Generates an OAuth token from the provided configuration.

impl Clone for DefaultConsumerContext

fn clone(&self) -> DefaultConsumerContext

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ConsumerContext for DefaultConsumerContext

fn rebalance( &self, native_client: &NativeClient, err: RDKafkaRespErr, tpl: &mut TopicPartitionList, )

Implements the default rebalancing strategy and calls the pre_rebalance and post_rebalance methods. If this method is overridden, it will be responsibility of the user to call them if needed.

fn pre_rebalance<'a>(&self, rebalance: &Rebalance<'a>)

Pre-rebalance callback. This method will run before the rebalance and should terminate its execution quickly.

fn post_rebalance<'a>(&self, rebalance: &Rebalance<'a>)

Post-rebalance callback. This method will run after the rebalance and should terminate its execution quickly.

fn commit_callback(&self, result: KafkaResult<()>, offsets: &TopicPartitionList)

Post commit callback. This method will run after a group of offsets was committed to the offset store.

fn main_queue_min_poll_interval(&self) -> Timeout

Returns the minimum interval at which to poll the main queue, which services the logging, stats, and error callbacks.

impl Debug for DefaultConsumerContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for DefaultConsumerContext

fn default() -> DefaultConsumerContext

Returns the “default value” for a type.