Module dk.cloudcreate.essentials.components.foundation

Package dk.cloudcreate.essentials.components.foundation.messaging.queue.operations

Class ConsumeFromQueueBuilder

java.lang.Object

dk.cloudcreate.essentials.components.foundation.messaging.queue.operations.ConsumeFromQueueBuilder

public class ConsumeFromQueueBuilder
extends Object

Builder for ConsumeFromQueue

Constructor Summary

Constructors

Constructor	Description
ConsumeFromQueueBuilder()

Method Summary

Modifier and Type	Method	Description
ConsumeFromQueue	build()	Builder an ConsumeFromQueue instance from the builder properties
ConsumeFromQueueBuilder	setConsumerExecutorService(ScheduledExecutorService consumerExecutorService)
ConsumeFromQueueBuilder	setConsumerName(String consumerName)
ConsumeFromQueueBuilder	setParallelConsumers(int parallelConsumers)
ConsumeFromQueueBuilder	setPollingInterval(Duration pollingInterval)
ConsumeFromQueueBuilder	setQueueMessageHandler(QueuedMessageHandler queueMessageHandler)
ConsumeFromQueueBuilder	setQueueName(QueueName queueName)
ConsumeFromQueueBuilder	setRedeliveryPolicy(RedeliveryPolicy redeliveryPolicy)

Methods inherited from class java.lang.Object

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

Constructor Details

ConsumeFromQueueBuilder

public ConsumeFromQueueBuilder()

Method Details

setQueueName

public ConsumeFromQueueBuilder setQueueName(QueueName queueName)

Parameters:

queueName - the name of the queue that the consumer will be listening for queued messages ready to be delivered to the QueuedMessageHandler provided

Returns:

this builder instance

setPollingInterval

public ConsumeFromQueueBuilder setPollingInterval(Duration pollingInterval)

Parameters:

pollingInterval - the interval with which the consumer poll the queue db for new messages to process

Returns:

this builder instance

setConsumerName

public ConsumeFromQueueBuilder setConsumerName(String consumerName)

Parameters:

consumerName - the name of the consumer (for logging purposes)

Returns:

this builder instance

setRedeliveryPolicy

public ConsumeFromQueueBuilder setRedeliveryPolicy(RedeliveryPolicy redeliveryPolicy)

Parameters:

redeliveryPolicy - the redelivery policy in case the handling of a message fails

Returns:

this builder instance

setParallelConsumers

public ConsumeFromQueueBuilder setParallelConsumers(int parallelConsumers)

Parameters:

parallelConsumers - the number of parallel consumers (if number > 1 then you will effectively have competing consumers on the current node)
Optional if you provide setConsumerExecutorService(ScheduledExecutorService) instead

Returns:

this builder instance

setConsumerExecutorService

public ConsumeFromQueueBuilder setConsumerExecutorService(ScheduledExecutorService consumerExecutorService)

Parameters:

consumerExecutorService - the ScheduledExecutorService that's responsible for controlling the number of Message consumer instance. E.g. if you provide an Executors.newSingleThreadExecutor() then there will only be a single message handler instance running on the local node. Also see ThreadFactoryBuilder
Optional if you provide setParallelConsumers(int) instead

Returns:

this builder instance

setQueueMessageHandler

public ConsumeFromQueueBuilder setQueueMessageHandler(QueuedMessageHandler queueMessageHandler)

Parameters:

queueMessageHandler - the message handler that will receive QueuedMessage's

Returns:

this builder instance

build

public ConsumeFromQueue build()

Builder an ConsumeFromQueue instance from the builder properties

Returns:

the ConsumeFromQueue instance