org.imixs.workflow.kafka

Class ProducerService

java.lang.Object

org.imixs.workflow.kafka.ProducerService

All Implemented Interfaces:

Serializable

public class ProducerService
extends Object
implements Serializable

The ProducerService is a Kafka client that publishes workflow events to the Kafka cluster.

The kafka producer is thread safe and sharing a single producer instance across threads will generally be faster than having multiple instances. For that reason we use a @Singleton with @ConcurrencyManagement

The producer consists of a pool of buffer space that holds records that haven't yet been transmitted to the server as well as a background I/O thread that is responsible for turning these records into requests and transmitting them to the cluster. Failure to close the producer after use will leak these resources.

Version:

1.0

Author:

rsoika

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ProducerService()

Method Summary

Modifier and Type	Method and Description
void	onProcess(org.imixs.workflow.engine.ProcessingEvent documentEvent) Autowire: On each workflow process event a new message is generated if the workflow model version matches the setup.
void	sendWorkitem(org.imixs.workflow.ItemCollection workitem) This method sends a kafka message based on a given workitem.

Methods inherited from class java.lang.Object

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

Constructor Detail

ProducerService

public ProducerService()

Method Detail

onProcess

public void onProcess(@Observes
                      org.imixs.workflow.engine.ProcessingEvent documentEvent)

Autowire:

On each workflow process event a new message is generated if the workflow model version matches the setup.

sendWorkitem

public void sendWorkitem(org.imixs.workflow.ItemCollection workitem)
                  throws org.imixs.workflow.exceptions.AdapterException

This method sends a kafka message based on a given workitem.

The topic ofi the message is the model version

The value is a serialized version of the workitem.

Parameters:

workitem -

Throws:

org.imixs.workflow.exceptions.AdapterException