org.ametys.plugins.blog

Class PostObserver

java.lang.Object

org.apache.avalon.framework.logger.AbstractLogEnabled

org.ametys.plugins.blog.PostObserver

All Implemented Interfaces:

Observer, LogEnabled, Serviceable

public class PostObserver
extends AbstractLogEnabled
implements Serviceable, Observer

Observes post creation, modification and deletion to update the cache accordingly.

Field Summary

Fields

Modifier and Type	Field and Description
protected BlogCacheManager	_blogCache The blog cache manager.
protected WorkspaceSelector	_workspaceSelector The workspace selector

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

MAX_PRIORITY, MIN_PRIORITY

Constructor Summary

Constructors

Constructor and Description
PostObserver()

Method Summary

Modifier and Type	Method and Description
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.
void	service(ServiceManager manager)
boolean	supports(Event event) Checks if the event is supported.

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Field Detail

_blogCache

protected BlogCacheManager _blogCache

The blog cache manager.

_workspaceSelector

protected WorkspaceSelector _workspaceSelector

The workspace selector

Constructor Detail

PostObserver

public PostObserver()

Method Detail

service

public void service(ServiceManager manager)
             throws ServiceException

Specified by:

service in interface Serviceable

Throws:

ServiceException

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.

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.

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.