org.apache.camel.support

Class ScheduledBatchPollingConsumer

java.lang.Object

org.apache.camel.support.service.BaseService

org.apache.camel.support.service.ServiceSupport

org.apache.camel.support.DefaultConsumer

org.apache.camel.support.ScheduledPollConsumer

org.apache.camel.support.ScheduledBatchPollingConsumer

All Implemented Interfaces:

AutoCloseable, Runnable, org.apache.camel.BatchConsumer, org.apache.camel.Consumer, org.apache.camel.EndpointAware, org.apache.camel.health.HealthCheckAware, org.apache.camel.PollingConsumerPollingStrategy, org.apache.camel.RouteAware, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.spi.RouteIdAware, org.apache.camel.spi.ShutdownAware, org.apache.camel.spi.ShutdownPrepared, org.apache.camel.StatefulService, org.apache.camel.Suspendable, org.apache.camel.SuspendableService

public abstract class ScheduledBatchPollingConsumer
extends ScheduledPollConsumer
implements org.apache.camel.BatchConsumer, org.apache.camel.spi.ShutdownAware

A useful base class for any consumer which is polling batch based

Field Summary

Fields

Modifier and Type	Field and Description
protected int	maxMessagesPerPoll
protected int	pendingExchanges
protected org.apache.camel.ShutdownRunningTask	shutdownRunningTask

Fields inherited from class org.apache.camel.support.service.BaseService

BUILT, FAILED, INITIALIZED, INITIALIZING, lock, NEW, SHUTDOWN, SHUTTING_DOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

Constructor Summary

Constructors

Constructor and Description
ScheduledBatchPollingConsumer(org.apache.camel.Endpoint endpoint, org.apache.camel.Processor processor)
ScheduledBatchPollingConsumer(org.apache.camel.Endpoint endpoint, org.apache.camel.Processor processor, ScheduledExecutorService executor)

Method Summary

Modifier and Type	Method and Description
boolean	deferShutdown(org.apache.camel.ShutdownRunningTask shutdownRunningTask)
int	getMaxMessagesPerPoll() Gets the maximum number of messages as a limit to poll at each polling.
int	getPendingExchangesSize()
boolean	isBatchAllowed()
void	prepareShutdown(boolean suspendOnly, boolean forced)
protected void	processEmptyMessage() No messages to poll so send an empty message instead.
void	setMaxMessagesPerPoll(int maxMessagesPerPoll)

Methods inherited from class org.apache.camel.support.ScheduledPollConsumer

addLastErrorDetail, afterConfigureScheduler, afterPoll, beforePoll, doBuild, doInit, doShutdown, doStart, doStop, doSuspend, getBackoffCounter, getBackoffErrorThreshold, getBackoffIdleThreshold, getBackoffMultiplier, getCounter, getDelay, getErrorCounter, getInitialDelay, getLastError, getLastErrorDetails, getPollStrategy, getRepeatCount, getRunLoggingLevel, getScheduledExecutorService, getScheduler, getSchedulerProperties, getSuccessCounter, getTimeUnit, isFirstPollDone, isGreedy, isPollAllowed, isPolling, isSchedulerStarted, isSendEmptyMessageWhenIdle, isStartScheduler, isUseFixedDelay, onInit, poll, run, setBackoffErrorThreshold, setBackoffIdleThreshold, setBackoffMultiplier, setDelay, setGreedy, setInitialDelay, setPollStrategy, setRepeatCount, setRunLoggingLevel, setScheduledExecutorService, setScheduler, setSchedulerProperties, setSendEmptyMessageWhenIdle, setStartScheduler, setTimeUnit, setUseFixedDelay, startScheduler

Methods inherited from class org.apache.camel.support.DefaultConsumer

createExchange, createUoW, defaultConsumerCallback, doneUoW, getAsyncProcessor, getEndpoint, getExceptionHandler, getHealthCheck, getProcessor, getRoute, getRouteId, handleException, handleException, releaseExchange, setExceptionHandler, setHealthCheck, setRoute, setRouteId, toString

Methods inherited from class org.apache.camel.support.service.BaseService

build, doFail, doLifecycleChange, doResume, fail, getStatus, init, isBuild, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.camel.BatchConsumer

processBatch

Methods inherited from interface org.apache.camel.Consumer

createExchange, defaultConsumerCallback, getProcessor, releaseExchange

Methods inherited from interface org.apache.camel.Service

build, close, init, start, stop

Methods inherited from interface org.apache.camel.EndpointAware

getEndpoint

Methods inherited from interface org.apache.camel.health.HealthCheckAware

getHealthCheck, setHealthCheck

Methods inherited from interface org.apache.camel.StatefulService

getStatus, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isSuspending

Methods inherited from interface org.apache.camel.SuspendableService

isSuspended, resume, suspend

Methods inherited from interface org.apache.camel.ShutdownableService

shutdown

Field Detail

shutdownRunningTask

protected volatile org.apache.camel.ShutdownRunningTask shutdownRunningTask

pendingExchanges

protected volatile int pendingExchanges

maxMessagesPerPoll

protected int maxMessagesPerPoll

Constructor Detail

ScheduledBatchPollingConsumer

public ScheduledBatchPollingConsumer(org.apache.camel.Endpoint endpoint,
                                     org.apache.camel.Processor processor)

ScheduledBatchPollingConsumer

public ScheduledBatchPollingConsumer(org.apache.camel.Endpoint endpoint,
                                     org.apache.camel.Processor processor,
                                     ScheduledExecutorService executor)

Method Detail

deferShutdown

public boolean deferShutdown(org.apache.camel.ShutdownRunningTask shutdownRunningTask)

Specified by:

deferShutdown in interface org.apache.camel.spi.ShutdownAware

getPendingExchangesSize

public int getPendingExchangesSize()

Specified by:

getPendingExchangesSize in interface org.apache.camel.spi.ShutdownAware

prepareShutdown

public void prepareShutdown(boolean suspendOnly,
                            boolean forced)

Specified by:

prepareShutdown in interface org.apache.camel.spi.ShutdownPrepared

setMaxMessagesPerPoll

public void setMaxMessagesPerPoll(int maxMessagesPerPoll)

Specified by:

setMaxMessagesPerPoll in interface org.apache.camel.BatchConsumer

getMaxMessagesPerPoll

public int getMaxMessagesPerPoll()

Gets the maximum number of messages as a limit to poll at each polling.

Is default unlimited, but use 0 or negative number to disable it as unlimited.

Returns:

max messages to poll

isBatchAllowed

public boolean isBatchAllowed()

Specified by:

isBatchAllowed in interface org.apache.camel.BatchConsumer

processEmptyMessage

protected void processEmptyMessage()
                            throws Exception

Description copied from class: ScheduledPollConsumer

No messages to poll so send an empty message instead.

Overrides:

processEmptyMessage in class ScheduledPollConsumer

Throws:

Exception - is thrown if error processing the empty message.