org.apache.pulsar.functions.source

Class PushPulsarSource<T>

java.lang.Object

org.apache.pulsar.functions.source.PulsarSource<T>

org.apache.pulsar.functions.source.PushPulsarSource<T>

All Implemented Interfaces:

AutoCloseable, Source<T>

Direct Known Subclasses:

MultiConsumerPulsarSource

public abstract class PushPulsarSource<T>
extends PulsarSource<T>

Field Summary

Fields inherited from class org.apache.pulsar.functions.source.PulsarSource

functionClassLoader, properties, pulsarClient, pulsarSourceConfig, topicSchema

Constructor Summary

Constructors

Constructor and Description
PushPulsarSource(org.apache.pulsar.client.api.PulsarClient pulsarClient, PulsarSourceConfig pulsarSourceConfig, Map<String,String> properties, ClassLoader functionClassLoader)

Method Summary

Modifier and Type	Method and Description
void	consume(Record<T> record) Attach a consumer function to this Source.
int	getQueueLength() Get length of the queue that records are push onto Users can override this method to customize the queue length
abstract void	open(Map<String,Object> config, SourceContext sourceContext) Open connector with configuration.
Record<T>	read()

Methods inherited from class org.apache.pulsar.functions.source.PulsarSource

buildPulsarSourceConsumerConfig, buildRecord, createConsumeBuilder, getInputConsumers

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.AutoCloseable

close

Constructor Detail

PushPulsarSource

public PushPulsarSource(org.apache.pulsar.client.api.PulsarClient pulsarClient,
                        PulsarSourceConfig pulsarSourceConfig,
                        Map<String,String> properties,
                        ClassLoader functionClassLoader)

Method Detail

read

public Record<T> read()
               throws Exception

Throws:

Exception

open

public abstract void open(Map<String,Object> config,
                          SourceContext sourceContext)
                   throws Exception

Open connector with configuration.

Parameters:

config - initialization config

sourceContext - environment where the source connector is running

Throws:

Exception - IO type exceptions when opening a connector

consume

public void consume(Record<T> record)

Attach a consumer function to this Source. This is invoked by the implementation to pass messages whenever there is data to be pushed to Pulsar.

Parameters:

record - next message from source which should be sent to a Pulsar topic

getQueueLength

public int getQueueLength()

Get length of the queue that records are push onto Users can override this method to customize the queue length

Returns:

queue length