Package io.pravega.connectors.flink.sink

Class PravegaEventSink<T>

java.lang.Object

io.pravega.connectors.flink.sink.PravegaSink<T>

io.pravega.connectors.flink.sink.PravegaEventSink<T>

Type Parameters:

T - The type of the event to be written.

All Implemented Interfaces:

java.io.Serializable, org.apache.flink.api.connector.sink2.Sink<T>

@Experimental
public class PravegaEventSink<T>
extends PravegaSink<T>

A Pravega sink for PravegaWriterMode.BEST_EFFORT and PravegaWriterMode.ATLEAST_ONCE writer mode.

Use PravegaSinkBuilder to construct a PravegaEventSink.

PravegaEventWriter spawned by this sink is the only class responsible for writing all incoming events. In short, it calls EventStreamWriter.writeEvent(Type) and fails the task if there is an error.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.api.connector.sink2.Sink

org.apache.flink.api.connector.sink2.Sink.InitContext

Constructor Summary

Constructors

Constructor	Description
PravegaEventSink(io.pravega.client.ClientConfig clientConfig, io.pravega.client.stream.Stream stream, PravegaWriterMode writerMode, org.apache.flink.api.common.serialization.SerializationSchema<T> serializationSchema, PravegaEventRouter<T> eventRouter)	Creates a new Pravega Event Sink instance which can be added as a sink to a Flink job.

Method Summary

Modifier and Type	Method	Description
org.apache.flink.api.connector.sink2.SinkWriter<T>	createWriter(org.apache.flink.api.connector.sink2.Sink.InitContext context)

Methods inherited from class io.pravega.connectors.flink.sink.PravegaSink

builder

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PravegaEventSink

public PravegaEventSink(io.pravega.client.ClientConfig clientConfig,
                        io.pravega.client.stream.Stream stream,
                        PravegaWriterMode writerMode,
                        org.apache.flink.api.common.serialization.SerializationSchema<T> serializationSchema,
                        PravegaEventRouter<T> eventRouter)

Creates a new Pravega Event Sink instance which can be added as a sink to a Flink job. It will create a PravegaEventWriter on demand with following parameters. We can use PravegaSinkBuilder to build such a sink.

Parameters:

clientConfig - The Pravega client configuration.

stream - The destination stream.

writerMode - The writer mode of the sink.

serializationSchema - The implementation for serializing every event into pravega's storage format.

eventRouter - The implementation to extract the partition key from the event.

Method Detail

createWriter

public org.apache.flink.api.connector.sink2.SinkWriter<T> createWriter(org.apache.flink.api.connector.sink2.Sink.InitContext context)
                                                                throws java.io.IOException

Throws:

java.io.IOException