Package org.apache.nifi.processors.pulsar.pubsub

Class ConsumePulsar

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.processor.AbstractSessionFactoryProcessor

org.apache.nifi.processor.AbstractProcessor

org.apache.nifi.processors.pulsar.AbstractPulsarConsumerProcessor<byte[]>

org.apache.nifi.processors.pulsar.pubsub.ConsumePulsar

All Implemented Interfaces:

org.apache.nifi.components.ConfigurableComponent, org.apache.nifi.processor.Processor

@SeeAlso({PublishPulsar.class,ConsumePulsarRecord.class,PublishPulsarRecord.class})
@Tags({"Pulsar","Get","Ingest","Ingress","Topic","PubSub","Consume"})
@CapabilityDescription("Consumes messages from Apache Pulsar. The complementary NiFi processor for sending messages is PublishPulsar.")
@InputRequirement(INPUT_FORBIDDEN)
@WritesAttributes(@WritesAttribute(attribute="message.count",description="The number of messages received from Pulsar"))
public class ConsumePulsar
extends AbstractPulsarConsumerProcessor<byte[]>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MSG_COUNT

Fields inherited from class org.apache.nifi.processors.pulsar.AbstractPulsarConsumerProcessor

ACK_TIMEOUT, ASYNC_ENABLED, AUTO_ACK_OLDEST_CHUNKED_ON_QUEUE_FULL, AUTO_UPDATE_PARTITION_INTERVAL, AUTO_UPDATE_PARTITIONS, CONSUMER_BATCH_SIZE, CONSUMER_NAME, EXCLUSIVE, EXPIRE_TIME_OF_INCOMPLETE_CHUNKED_MESSAGE, FAILOVER, KEY_SHARED, MAPPED_FLOWFILE_ATTRIBUTES, MAX_ASYNC_REQUESTS, MAX_PENDING_CHUNKED_MESSAGE, MESSAGE_DEMARCATOR, PRIORITY_LEVEL, PROPERTIES, PULSAR_CLIENT_SERVICE, PULSAR_MESSAGE_KEY, RECEIVER_QUEUE_SIZE, REL_SUCCESS, RELATIONSHIPS, REPLICATE_SUBSCRIPTION_STATE, SHARED, SUBSCRIPTION_INITIAL_POSITION, SUBSCRIPTION_NAME, SUBSCRIPTION_TYPE, TOPICS, TOPICS_PATTERN

Constructor Summary

Constructors

Constructor	Description
ConsumePulsar()

Method Summary

Modifier and Type	Method	Description
private void	consume(org.apache.pulsar.client.api.Consumer<org.apache.pulsar.client.api.schema.GenericRecord> consumer, org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session)
private void	handleAsync(org.apache.pulsar.client.api.Consumer<org.apache.pulsar.client.api.schema.GenericRecord> consumer, org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session)
void	onTrigger(org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session)

Methods inherited from class org.apache.nifi.processors.pulsar.AbstractPulsarConsumerProcessor

cleanUp, consumeAsync, customValidate, getAckPool, getAckService, getConsumer, getConsumerBuilder, getConsumerId, getConsumerPool, getConsumers, getConsumerService, getMappedFlowFileAttributes, getPulsarClientService, getRelationships, getSupportedPropertyDescriptors, init, isSharedSubscription, setAckPool, setAckService, setConsumerPool, setConsumers, setConsumerService, setPulsarClientService, shutDown

Methods inherited from class org.apache.nifi.processor.AbstractProcessor

onTrigger

Methods inherited from class org.apache.nifi.processor.AbstractSessionFactoryProcessor

getControllerServiceLookup, getIdentifier, getLogger, getNodeTypeProvider, init, initialize, isConfigurationRestored, isScheduled, toString, updateConfiguredRestoredTrue, updateScheduledFalse, updateScheduledTrue

Methods inherited from class org.apache.nifi.components.AbstractConfigurableComponent

equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, hashCode, onPropertyModified, validate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.nifi.components.ConfigurableComponent

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Methods inherited from interface org.apache.nifi.processor.Processor

isStateful

Field Details

MSG_COUNT

public static final String MSG_COUNT

See Also:

• Constant Field Values

Constructor Details

ConsumePulsar

public ConsumePulsar()

Method Details

onTrigger

public void onTrigger(org.apache.nifi.processor.ProcessContext context,
 org.apache.nifi.processor.ProcessSession session)
               throws org.apache.nifi.processor.exception.ProcessException

Specified by:

onTrigger in class org.apache.nifi.processor.AbstractProcessor

Throws:

org.apache.nifi.processor.exception.ProcessException

handleAsync

private void handleAsync(org.apache.pulsar.client.api.Consumer<org.apache.pulsar.client.api.schema.GenericRecord> consumer,
 org.apache.nifi.processor.ProcessContext context,
 org.apache.nifi.processor.ProcessSession session)

consume

private void consume(org.apache.pulsar.client.api.Consumer<org.apache.pulsar.client.api.schema.GenericRecord> consumer,
 org.apache.nifi.processor.ProcessContext context,
 org.apache.nifi.processor.ProcessSession session)
              throws org.apache.pulsar.client.api.PulsarClientException

Throws:

org.apache.pulsar.client.api.PulsarClientException