org.restlet.engine.application

Class StatusFilter

java.lang.Object

org.restlet.Restlet

org.restlet.routing.Filter

org.restlet.engine.application.StatusFilter

All Implemented Interfaces:

Uniform

public class StatusFilter
extends Filter

Filter associating a response entity based on the status. In order to customize the default representation, just subclass this class and override the "getRepresentation" method.
If any exception occurs during the call handling, a "server internal error" status is automatically associated to the call. Of course, you can personalize the representation of this error. Also, if no status is set (null), then the "success OK" status is assumed. Concurrency note: instances of this class or its subclasses can be invoked by several threads at the same time and therefore must be thread-safe. You should be especially careful when storing state in member variables.

Author:

Jerome Louvel

Field Summary

Fields inherited from class org.restlet.routing.Filter

CONTINUE, SKIP, STOP

Constructor Summary

Constructors

Constructor and Description
StatusFilter(Context context, boolean overwriting) Constructor.
StatusFilter(Context context, StatusService statusService) Constructor from a status service.

Method Summary

Modifier and Type	Method and Description
void	afterHandle(Request request, Response response) Allows filtering after its handling by the target Restlet.
protected int	doHandle(Request request, Response response) Handles the call by distributing it to the next Restlet.
StatusService	getStatusService() Returns the helped status service.
boolean	isOverwriting() Indicates if existing representations should be overwritten.
void	setOverwriting(boolean overwriting) Indicates if existing representations should be overwritten.
void	setStatusService(StatusService statusService) Sets the helped status service.

Methods inherited from class org.restlet.routing.Filter

beforeHandle, getNext, handle, hasNext, setNext, setNext, start, stop

Methods inherited from class org.restlet.Restlet

createFinder, finalize, getApplication, getAuthor, getContext, getDescription, getFinderClass, getLogger, getName, getOwner, handle, handle, handle, isStarted, isStopped, setAuthor, setContext, setDescription, setFinderClass, setName, setOwner

Methods inherited from class java.lang.Object

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

Constructor Detail

StatusFilter

public StatusFilter(Context context,
                    boolean overwriting)

Constructor.

Parameters:

context - The context.

overwriting - Indicates whether an existing representation should be overwritten.

StatusFilter

public StatusFilter(Context context,
                    StatusService statusService)

Constructor from a status service.

Parameters:

context - The context.

statusService - The helped status service.

Method Detail

afterHandle

public void afterHandle(Request request,
                        Response response)

Allows filtering after its handling by the target Restlet. If the status is not set, set Status.SUCCESS_OK by default. If this is an error status, try to get a representation of it with StatusService.toRepresentation(Status, Request, Response) .

Overrides:

afterHandle in class Filter

Parameters:

request - The request to handle.

response - The response to update.

doHandle

protected int doHandle(Request request,
                       Response response)

Handles the call by distributing it to the next Restlet. If a throwable is caught, the StatusService.toStatus(Throwable, Request, Response) method is invoked.

Overrides:

doHandle in class Filter

Parameters:

request - The request to handle.

response - The response to update.

Returns:

The continuation status.

getStatusService

public StatusService getStatusService()

Returns the helped status service.

Returns:

The helped status service.

isOverwriting

public boolean isOverwriting()

Indicates if existing representations should be overwritten.

Returns:

True if existing representations should be overwritten.

setOverwriting

public void setOverwriting(boolean overwriting)

Indicates if existing representations should be overwritten.

Parameters:

overwriting - True if existing representations should be overwritten.

setStatusService

public void setStatusService(StatusService statusService)

Sets the helped status service.

Parameters:

statusService - The helped status service.