org.apache.nifi.processor.util.listen.event

Class EventQueue<E extends Event>

java.lang.Object

org.apache.nifi.processor.util.listen.event.EventQueue<E>

Type Parameters:

E - the type of event

public class EventQueue<E extends Event>
extends Object

Wraps a BlockingQueue to centralize logic for offering events across UDP, TCP, and SSL.

Field Summary

Fields

Modifier and Type	Field and Description
static long	DEFAULT_OFFER_WAIT_MS The default number of milliseconds to wait when offering new events to the queue.
private BlockingQueue<E>	events
private ComponentLog	logger
private long	offerWaitMs

Constructor Summary

Constructors

Constructor and Description
EventQueue(BlockingQueue<E> events, ComponentLog logger)
EventQueue(BlockingQueue<E> events, long offerWaitMs, ComponentLog logger)

Method Summary

Modifier and Type	Method and Description
void	offer(E event) Offers the given event to the events queue with a wait time, if the offer fails the event is dropped an error is logged.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_OFFER_WAIT_MS

public static final long DEFAULT_OFFER_WAIT_MS

The default number of milliseconds to wait when offering new events to the queue.

See Also:

Constant Field Values

offerWaitMs

private final long offerWaitMs

events

private final BlockingQueue<E extends Event> events

logger

private final ComponentLog logger

Constructor Detail

EventQueue

public EventQueue(BlockingQueue<E> events,
                  ComponentLog logger)

EventQueue

public EventQueue(BlockingQueue<E> events,
                  long offerWaitMs,
                  ComponentLog logger)

Method Detail

offer

public void offer(E event)
           throws InterruptedException

Offers the given event to the events queue with a wait time, if the offer fails the event is dropped an error is logged.

Parameters:

event - the event to offer

Throws:

InterruptedException - if interrupted while waiting to offer