Package org.ametys.web.cache

Class InvalidateCacheOnResourceUpdateObserver

java.lang.Object

org.ametys.runtime.plugin.component.AbstractLogEnabled

org.ametys.web.cache.InvalidateCacheOnResourceUpdateObserver

All Implemented Interfaces:

Observer, LogEnabled

public class InvalidateCacheOnResourceUpdateObserver
extends AbstractLogEnabled
implements Observer

Observer for listening resource changes in order to invalidate cache on front-office.

Field Summary

Fields

Modifier and Type	Field	Description
private static Pattern	__RESOURCE_PATTERN
private static Pattern	__ROOT_SITE_RESOURCE_PATTERN
private static Pattern	__SHARED_RESOURCE_PATTERN

Fields inherited from interface org.ametys.core.observation.Observer

MAX_PRIORITY, MIN_PRIORITY

Constructor Summary

Constructors

Constructor	Description
InvalidateCacheOnResourceUpdateObserver()

Method Summary

Modifier and Type	Method	Description
private void	_invalidate(String path)
int	getPriority(Event event)	Retrieves the priority to observe this event. This can be used to process a supported event before others observers.
void	observe(Event event, Map<String,Object> transientVars)	Observes an event.
boolean	supports(Event event)	Checks if the event is supported.

Methods inherited from class org.ametys.runtime.plugin.component.AbstractLogEnabled

getLogger, setLogger

Methods inherited from class java.lang.Object

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

Field Detail

__RESOURCE_PATTERN

private static final Pattern __RESOURCE_PATTERN

__ROOT_SITE_RESOURCE_PATTERN

private static final Pattern __ROOT_SITE_RESOURCE_PATTERN

__SHARED_RESOURCE_PATTERN

private static final Pattern __SHARED_RESOURCE_PATTERN

Constructor Detail

InvalidateCacheOnResourceUpdateObserver

public InvalidateCacheOnResourceUpdateObserver()

Method Detail

getPriority

public int getPriority(Event event)

Description copied from interface: Observer

Retrieves the priority to observe this event.
This can be used to process a supported event before others observers.

Specified by:

getPriority in interface Observer

Parameters:

event - the event.

Returns:

the priority where 0 the max priority and Integer.MAX_VALUE the min priority.

supports

public boolean supports(Event event)

Description copied from interface: Observer

Checks if the event is supported. If true, the observe(Event) method will be called.

Specified by:

supports in interface Observer

Parameters:

event - the event.

Returns:

true for observing this event, false otherwise.

observe

public void observe(Event event,
                    Map<String,Object> transientVars)
             throws Exception

Description copied from interface: Observer

Observes an event.

Specified by:

observe in interface Observer

Parameters:

event - the event.

transientVars - transientVars passed from one Observer to another when processing a single Event. This may allow optimizations between observers.

Throws:

Exception - if an error occurs. All exceptions will be logged but not propagated, as the observation mechanism should never fail.

_invalidate

private void _invalidate(String path)
                  throws Exception

Throws:

Exception