Package org.springframework.integration.file.tail

Class FileTailingMessageProducerSupport

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.endpoint.AbstractEndpoint

org.springframework.integration.endpoint.MessageProducerSupport

org.springframework.integration.file.tail.FileTailingMessageProducerSupport

All Implemented Interfaces:

Aware, BeanFactoryAware, BeanNameAware, DisposableBean, InitializingBean, SmartInitializingSingleton, ApplicationContextAware, ApplicationEventPublisherAware, Lifecycle, Phased, SmartLifecycle, ExpressionCapable, MessageProducer, IntegrationPattern, NamedComponent, ManageableLifecycle, ManageableSmartLifecycle, TrackableComponent

Direct Known Subclasses:

ApacheCommonsFileTailingMessageProducer, OSDelegatingFileTailingMessageProducer

public abstract class FileTailingMessageProducerSupport
extends MessageProducerSupport
implements ApplicationEventPublisherAware

Base class for file tailing inbound adapters.

Since:

3.0

Author:

Gary Russell, Artem Bilan, Ali Shahbour, Vladimir Plizga

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FileTailingMessageProducerSupport.FileTailingEvent
static class	FileTailingMessageProducerSupport.FileTailingIdleEvent

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DEFAULT_TAIL_ATTEMPTS_DELAY	The default delay between tail attempts in milliseconds.

Fields inherited from class org.springframework.integration.endpoint.AbstractEndpoint

lifecycleCondition, lifecycleLock

Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport

EXPRESSION_PARSER, logger

Fields inherited from interface org.springframework.context.SmartLifecycle

DEFAULT_PHASE

Constructor Summary

Constructors

Constructor	Description
FileTailingMessageProducerSupport()

Method Summary

Modifier and Type	Method	Description
protected void	doStart()	Take no action by default.
protected void	doStop()	Take no action by default.
String	getComponentType()	Subclasses may implement this method to provide component type information.
protected File	getFile()
protected long	getMissingFileDelay()
protected TaskExecutor	getTaskExecutor()
protected void	publish(String message)
protected void	send(String line)
void	setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher)
void	setFile(File file)	The name of the file you wish to tail.
void	setIdleEventInterval(long idleEventInterval)	How often to emit FileTailingMessageProducerSupport.FileTailingIdleEvents in milliseconds.
void	setTailAttemptsDelay(long tailAttemptsDelay)	The delay in milliseconds between attempts to tail a non-existent file, or between attempts to execute a process if it fails for any reason.
void	setTaskExecutor(TaskExecutor taskExecutor)	A task executor; default is a SimpleAsyncTaskExecutor.

Methods inherited from class org.springframework.integration.endpoint.MessageProducerSupport

afterSingletonsInstantiated, buildErrorMessage, getErrorChannel, getErrorMessageAttributes, getErrorMessageStrategy, getIntegrationPatternType, getMessagingTemplate, getOutputChannel, onInit, sendErrorMessageIfNecessary, sendMessage, setErrorChannel, setErrorChannelName, setErrorMessageStrategy, setOutputChannel, setOutputChannelName, setSendTimeout, setShouldTrack, subscribeToPublisher

Methods inherited from class org.springframework.integration.endpoint.AbstractEndpoint

destroy, doStop, getPhase, getRole, isActive, isAutoStartup, isRunning, setAutoStartup, setPhase, setRole, start, stop, stop

Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, extractTypeIfPossible, generateId, getApplicationContext, getApplicationContextId, getBeanDescription, getBeanFactory, getBeanName, getChannelResolver, getComponentName, getConversionService, getExpression, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, isInitialized, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, setPrimaryExpression, setTaskScheduler, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.integration.support.context.NamedComponent

getBeanName, getComponentName

Field Details

DEFAULT_TAIL_ATTEMPTS_DELAY

public static final long DEFAULT_TAIL_ATTEMPTS_DELAY

The default delay between tail attempts in milliseconds.

See Also:

• Constant Field Values

Constructor Details

FileTailingMessageProducerSupport

public FileTailingMessageProducerSupport()

Method Details

setApplicationEventPublisher

public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher)

Specified by:

setApplicationEventPublisher in interface ApplicationEventPublisherAware

setFile

public void setFile(File file)

The name of the file you wish to tail.

Parameters:

file - The absolute path of the file.

getFile

protected File getFile()

setTaskExecutor

public void setTaskExecutor(TaskExecutor taskExecutor)

A task executor; default is a SimpleAsyncTaskExecutor.

Parameters:

taskExecutor - The task executor.

setTailAttemptsDelay

public void setTailAttemptsDelay(long tailAttemptsDelay)

The delay in milliseconds between attempts to tail a non-existent file, or between attempts to execute a process if it fails for any reason.

Parameters:

tailAttemptsDelay - the delay.

setIdleEventInterval

public void setIdleEventInterval(long idleEventInterval)

How often to emit FileTailingMessageProducerSupport.FileTailingIdleEvents in milliseconds.

Parameters:

idleEventInterval - the interval.

Since:

5.0

getMissingFileDelay

protected long getMissingFileDelay()

getTaskExecutor

protected TaskExecutor getTaskExecutor()

getComponentType

public String getComponentType()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this method to provide component type information.

Specified by:

getComponentType in interface NamedComponent

Overrides:

getComponentType in class IntegrationObjectSupport

send

protected void send(String line)

publish

protected void publish(String message)

doStart

protected void doStart()

Description copied from class: MessageProducerSupport

Take no action by default. Subclasses may override this if they need lifecycle-managed behavior. Protected by 'lifecycleLock'.

Overrides:

doStart in class MessageProducerSupport

doStop

protected void doStop()

Description copied from class: MessageProducerSupport

Take no action by default. Subclasses may override this if they need lifecycle-managed behavior.

Overrides:

doStop in class MessageProducerSupport