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

Class PublishPulsar

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.processor.AbstractSessionFactoryProcessor

org.apache.nifi.processor.AbstractProcessor

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

org.apache.nifi.processors.pulsar.pubsub.PublishPulsar

All Implemented Interfaces:

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

@SeeAlso({ConsumePulsar.class,ConsumePulsarRecord.class,PublishPulsarRecord.class})
@Tags({"Apache","Pulsar","Put","Send","Message","PubSub"})
@CapabilityDescription("Sends the contents of a FlowFile as a message to Apache Pulsar using the Pulsar Producer API.The messages to send may be individual FlowFiles or may be delimited, using a user-specified delimiter, such as a new-line. The complementary NiFi processor for fetching messages is ConsumePulsar.")
@InputRequirement(INPUT_REQUIRED)
@WritesAttribute(attribute="msg.count",
                 description="The number of messages that were sent to Pulsar for this FlowFile. This attribute is added only to This attribute is added only to FlowFiles that are routed to success.")
@TriggerWhenEmpty
public class PublishPulsar
extends AbstractPulsarProducerProcessor<byte[]>

Field Summary

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

ASYNC_ENABLED, asyncPublishers, AUTO_UPDATE_PARTITION_INTERVAL, AUTO_UPDATE_PARTITIONS, BATCH_INTERVAL, BATCHING_ENABLED, BATCHING_MAX_BYTES, BATCHING_MAX_MESSAGES, BLOCK_IF_QUEUE_FULL, canPublish, CHUNK_MAX_MESSAGE_SIZE, CHUNKING_ENABLED, COMPRESSION_TYPE, failureQueue, MAPPED_MESSAGE_PROPERTIES, MAX_ASYNC_REQUESTS, MESSAGE_DEMARCATOR, MESSAGE_KEY, MESSAGE_ROUTING_MODE, MSG_COUNT, PENDING_MAX_MESSAGES, PROPERTIES, PULSAR_CLIENT_SERVICE, REL_FAILURE, REL_SUCCESS, RELATIONSHIPS, TOPIC, TOPIC_NAME, trackFailures, workQueue

Constructor Summary

Constructors

Constructor	Description
PublishPulsar()

Method Summary

Modifier and Type	Method	Description
void	onTrigger(org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session)
private void	send(org.apache.pulsar.client.api.Producer<byte[]> producer, org.apache.nifi.processor.ProcessContext context, org.apache.nifi.processor.ProcessSession session, org.apache.nifi.flowfile.FlowFile flowFile, byte[] demarcatorBytes)	Sends the FlowFile content using the demarcator.

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

cleanUp, getMappedMessageProperties, getMessageKey, getProducer, getProducers, getPublisherPool, getPulsarClientService, getRelationships, getSupportedPropertyDescriptors, handleFailures, init, send, setProducers, setPublisherPool, 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

customValidate, 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

Constructor Details

PublishPulsar

public PublishPulsar()

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

send

private void send(org.apache.pulsar.client.api.Producer<byte[]> producer,
 org.apache.nifi.processor.ProcessContext context,
 org.apache.nifi.processor.ProcessSession session,
 org.apache.nifi.flowfile.FlowFile flowFile,
 byte[] demarcatorBytes)
           throws org.apache.pulsar.client.api.PulsarClientException

Sends the FlowFile content using the demarcator.

Parameters:

producer -

context - - The current ProcessContext

session - - The current ProcessSession.

flowFile -

demarcatorBytes - - The value used to identify unique records in the list

Throws:

org.apache.pulsar.client.api.PulsarClientException