io.smallrye.metrics.jaxrs

Class JaxRsMetricsFilter

java.lang.Object

io.smallrye.metrics.jaxrs.JaxRsMetricsFilter

All Implemented Interfaces:

javax.ws.rs.container.ContainerRequestFilter, javax.ws.rs.container.ContainerResponseFilter

public class JaxRsMetricsFilter
extends Object
implements javax.ws.rs.container.ContainerRequestFilter, javax.ws.rs.container.ContainerResponseFilter

Filter for measuring JAX-RS metrics, together with JaxRsMetricsServletFilter. The reason for having two filters (one based on Servlet API, one on JAX-RS API) is to overcome the limitation of JAX-RS specification in that it does not require implementations to call a ContainerResponseFilter to finish exchanges that led to an unmapped exception. That's why we can't use a ContainerResponseFilter to 'finish' the tracking of a REST call and update the corresponding metrics. For that reason, we have JaxRsMetricsServletFilter, which is a Servlet Filter, to hook into the responses in this case. To get all of this logic working on a target runtime server, it is necessary to register both the JaxRsMetricsServletFilter and JaxRsMetricsFilter to handle incoming requests. JaxRsMetricsServletFilter must run first, but this will probably be the case always.

Constructor Summary

Constructors

Constructor and Description
JaxRsMetricsFilter()

Method Summary

Modifier and Type	Method and Description
void	filter(javax.ws.rs.container.ContainerRequestContext requestContext)
void	filter(javax.ws.rs.container.ContainerRequestContext requestContext, javax.ws.rs.container.ContainerResponseContext responseContext)

Methods inherited from class java.lang.Object

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

Constructor Detail

JaxRsMetricsFilter

public JaxRsMetricsFilter()

Method Detail

filter

public void filter(javax.ws.rs.container.ContainerRequestContext requestContext)

Specified by:

filter in interface javax.ws.rs.container.ContainerRequestFilter

filter

public void filter(javax.ws.rs.container.ContainerRequestContext requestContext,
                   javax.ws.rs.container.ContainerResponseContext responseContext)
            throws IOException

Specified by:

filter in interface javax.ws.rs.container.ContainerResponseFilter

Throws:

IOException