org.apache.pulsar.io.core

Interface SinkContext

All Superinterfaces:

BaseContext

@InterfaceAudience.Public
 @InterfaceStability.Stable
public interface SinkContext
extends BaseContext

Interface for a sink connector providing information about environment where it is running. It also allows to propagate information, such as logs, metrics, states, back to the Pulsar environment.

Method Summary

Modifier and Type	Method and Description
Collection<String>	getInputTopics() Get a list of all input topics.
String	getSinkName() The name of the sink that we are executing
default org.apache.pulsar.client.api.SubscriptionType	getSubscriptionType() Get subscription type used by the source providing data for the sink
default void	pause(String topic, int partition) Stop requesting new messages for given topic and partition until resume(String topic, int partition) is called.
default void	resume(String topic, int partition) Resume requesting messages.
default void	seek(String topic, int partition, org.apache.pulsar.client.api.MessageId messageId) Reset the subscription associated with this topic and partition to a specific message id.

Methods inherited from interface org.apache.pulsar.functions.api.BaseContext

deleteState, deleteStateAsync, getCounter, getCounterAsync, getInstanceId, getLogger, getNamespace, getNumInstances, getPulsarClient, getPulsarClientBuilder, getSecret, getState, getStateAsync, getStateStore, getStateStore, getTenant, incrCounter, incrCounterAsync, putState, putStateAsync, recordMetric

Method Detail

getSinkName

String getSinkName()

The name of the sink that we are executing

Returns:

The Sink name

getInputTopics

Collection<String> getInputTopics()

Get a list of all input topics.

Returns:

a list of all input topics

getSubscriptionType

default org.apache.pulsar.client.api.SubscriptionType getSubscriptionType()

Get subscription type used by the source providing data for the sink

Returns:

subscription type

seek

default void seek(String topic,
                  int partition,
                  org.apache.pulsar.client.api.MessageId messageId)
           throws org.apache.pulsar.client.api.PulsarClientException

Reset the subscription associated with this topic and partition to a specific message id.

Parameters:

topic - - topic name

partition - - partition id (0 for non-partitioned topics)

messageId - to reset to

Throws:

org.apache.pulsar.client.api.PulsarClientException

pause

default void pause(String topic,
                   int partition)
            throws org.apache.pulsar.client.api.PulsarClientException

Stop requesting new messages for given topic and partition until resume(String topic, int partition) is called.

Parameters:

topic - - topic name

partition - - partition id (0 for non-partitioned topics)

Throws:

org.apache.pulsar.client.api.PulsarClientException

resume

default void resume(String topic,
                    int partition)
             throws org.apache.pulsar.client.api.PulsarClientException

Resume requesting messages.

Parameters:

topic - - topic name

partition - - partition id (0 for non-partitioned topics)

Throws:

org.apache.pulsar.client.api.PulsarClientException