org.apache.camel.impl

Class FileWatcherReloadStrategy

java.lang.Object

org.apache.camel.support.ServiceSupport

org.apache.camel.support.ReloadStrategySupport

org.apache.camel.impl.FileWatcherReloadStrategy

All Implemented Interfaces:

CamelContextAware, Service, ShutdownableService, ReloadStrategy, StatefulService, StaticService, SuspendableService

@ManagedResource(description="Managed FileWatcherReloadStrategy")
public class FileWatcherReloadStrategy
extends ReloadStrategySupport

A file based ReloadStrategy which watches a file folder for modified files and reload on file changes.

This implementation uses the JDK WatchService to watch for when files are created or modified. Mac OS X users should be noted the osx JDK does not support native file system changes and therefore the watch service is much slower than on linux or windows systems.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	FileWatcherReloadStrategy.WatchFileChangesTask Background task which watches for file changes

Field Summary

Fields inherited from class org.apache.camel.support.ReloadStrategySupport

cache, log

Fields inherited from class org.apache.camel.support.ServiceSupport

shutdown, shuttingdown, started, starting, stopped, stopping, suspended, suspending

Constructor Summary

Constructors

Constructor and Description
FileWatcherReloadStrategy()
FileWatcherReloadStrategy(String directory)
FileWatcherReloadStrategy(String directory, boolean isRecursive)

Method Summary

Modifier and Type	Method and Description
protected void	doStart() Implementations override this method to support customized start/stop.
protected void	doStop() Implementations override this method to support customized start/stop.
String	getFolder()
boolean	isRecursive()
boolean	isRunning()
void	setFolder(String folder)
void	setPollTimeout(long pollTimeout) Sets the poll timeout in millis.
void	setRecursive(boolean isRecursive)

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

getCamelContext, getFailedCounter, getReloadCounter, onReloadXml, resetCounters, setCamelContext, setFailed, setSucceeded

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

doResume, doShutdown, doSuspend, getStatus, getVersion, isRunAllowed, isStarted, isStarting, 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, toString, wait, wait, wait

Methods inherited from interface org.apache.camel.Service

start, stop

Constructor Detail

FileWatcherReloadStrategy

public FileWatcherReloadStrategy()

FileWatcherReloadStrategy

public FileWatcherReloadStrategy(String directory)

FileWatcherReloadStrategy

public FileWatcherReloadStrategy(String directory,
                                 boolean isRecursive)

Method Detail

setFolder

public void setFolder(String folder)

setRecursive

public void setRecursive(boolean isRecursive)

setPollTimeout

public void setPollTimeout(long pollTimeout)

Sets the poll timeout in millis. The default value is 2000.

getFolder

@ManagedAttribute(description="Folder being watched")
public String getFolder()

isRecursive

@ManagedAttribute(description="Whether the reload strategy watches directory recursively")
public boolean isRecursive()

isRunning

@ManagedAttribute(description="Whether the watcher is running")
public boolean isRunning()

doStart

protected void doStart()
                throws Exception

Description copied from class: ServiceSupport

Implementations override this method to support customized start/stop.

Important: See ServiceSupport.doStop() for more details.

Overrides:

doStart in class ReloadStrategySupport

Throws:

Exception

See Also:

ServiceSupport.doStop()

doStop

protected void doStop()
               throws Exception

Description copied from class: ServiceSupport

Implementations override this method to support customized start/stop.

Important: Camel will invoke this ServiceSupport.doStop() method when the service is being stopped. This method will also be invoked if the service is still in uninitialized state (eg has not been started). The method is always called to allow the service to do custom logic when the service is being stopped, such as when CamelContext is shutting down.

Overrides:

doStop in class ReloadStrategySupport

Throws:

Exception

See Also:

ServiceSupport.doStart()