Module io.helidon.webserver

Package io.helidon.webserver.http

Interface Filter

All Superinterfaces:

ServerLifecycle

public interface Filter
extends ServerLifecycle

HTTP filter.

Method Summary

Modifier and Type	Method	Description
void	filter(FilterChain chain, RoutingRequest req, RoutingResponse res)	Handle a request.

Methods inherited from interface io.helidon.webserver.ServerLifecycle

afterStop, beforeStart

Method Details

filter

void filter(FilterChain chain,
 RoutingRequest req,
 RoutingResponse res)

Handle a request. If request processing should be terminated, do not call FilterChain.proceed(). If request processing should continue with next filter, call FilterChain.proceed(). FilterChain.proceed() may throw an exception. The following exceptions mean the connection will close (and the request cannot finish):

• CloseConnectionException
• UncheckedIOException

Filters may throw HttpException (or its subclasses), all filters before the current filter will not receive such an exception - it will be processed before the method FilterChain.proceed() returns.

Parameters:

chain - to proceed with further filters (or routing if this is the last filter)

req - routing request

res - routing response