org.apache.wicket.core.util.watch

Class Nio2ModificationWatcher

java.lang.Object

org.apache.wicket.util.watch.ModificationWatcher

org.apache.wicket.core.util.watch.Nio2ModificationWatcher

All Implemented Interfaces:

IModificationWatcher

public class Nio2ModificationWatcher
extends ModificationWatcher

An extension of ModificationWatcher that removes the NotFound entries from the MarkupCache for newly created files. By default MarkupCache registers Markup.NO_MARKUP value for each requested but not found markup file. Later when the user creates the markup file the MarkupCache should be notified.

Since:

7.0.0

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wicket.util.watch.ModificationWatcher

ModificationWatcher.Entry

Constructor Summary

Constructors

Constructor and Description
Nio2ModificationWatcher(Application application, Duration pollFrequency) Constructor.

Method Summary

Modifier and Type	Method and Description
protected void	checkCreated(org.slf4j.Logger log) Checks for newly created files and folders.
void	destroy() Stops this ModificationWatcher.
protected void	entryCreated(Path path, org.slf4j.Logger log) A callback method called when a new Path entry is created
protected void	entryDeleted(Path path, org.slf4j.Logger log) A callback method called when a new Path entry is deleted
protected void	entryModified(Path path, org.slf4j.Logger log) A callback method called when a new Path entry is modified
protected WatchEvent.Kind[]	getWatchedKinds(Path folder)
void	start(Duration pollFrequency) Starts watching at a given Duration polling rate.

Methods inherited from class org.apache.wicket.util.watch.ModificationWatcher

add, checkModified, getEntries, remove

Methods inherited from class java.lang.Object

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

Constructor Detail

Nio2ModificationWatcher

public Nio2ModificationWatcher(Application application,
                               Duration pollFrequency)

Constructor.

Parameters:

application - The application that manages the caches

pollFrequency - How often to check on IModifiables

Method Detail

start

public void start(Duration pollFrequency)

Description copied from interface: IModificationWatcher

Starts watching at a given Duration polling rate.

Specified by:

start in interface IModificationWatcher

Overrides:

start in class ModificationWatcher

Parameters:

pollFrequency - the polling rate Duration

checkCreated

protected void checkCreated(org.slf4j.Logger log)

Checks for newly created files and folders. New folders are registered to be watched. New files are removed from the MarkupCache because there could be Markup.NO_MARKUP (Not Found) entries for them already.

Parameters:

log - a logger that can be used to log the events

entryModified

protected void entryModified(Path path,
                             org.slf4j.Logger log)

A callback method called when a new Path entry is modified

Parameters:

path - the modified path

log - a logger that can be used to log the events

entryDeleted

protected void entryDeleted(Path path,
                            org.slf4j.Logger log)

A callback method called when a new Path entry is deleted

Parameters:

path - the deleted path

log - a logger that can be used to log the events

entryCreated

protected void entryCreated(Path path,
                            org.slf4j.Logger log)

A callback method called when a new Path entry is created

Parameters:

path - the new path entry

log - a logger that can be used to log the events

destroy

public void destroy()

Description copied from interface: IModificationWatcher

Stops this ModificationWatcher.

Specified by:

destroy in interface IModificationWatcher

Overrides:

destroy in class ModificationWatcher

getWatchedKinds

protected WatchEvent.Kind[] getWatchedKinds(Path folder)

Parameters:

folder - the folder that will be watched

Returns:

an array of watch event kinds to use for the watching of the given folder