Migrating from QoSFilter to QoSHandler

[jmbeach]

Hello, I'm upgrading from Jetty 9 to 12 and have a service that relies on QoSFilter to actually do a bulkhead implementation by having multiple QoSFilter's with different path spec's (using filterMapping.setPathSpecs(pathSpecs)) and adding that to the ServletContextHandler addFilter(filterHolder, filterMapping).

Can I achieve the same effect using QoSHandler?

[sbordet]

Are you configuring each QoSFilter differently?

You can achieve the same (a chain of QoSHandlers) because QoSHandler is-a ConditionalHandler, see https://jetty.org/docs/jetty/12/programming-guide/server/http.html#handler-use-conditional.

Basically you do this:

QoSHandler qos1 = new QoSHandler();
qos1.include("/foo/*"); // Only match these paths.

QoSHandler qos2 = new QoSHandler(qos1);
qos2.include("/bar/*"); // Only match these paths.

You get the idea.

If you don't need to configure QoSHandler differently, you can include() many paths on the same QoSHandler instance.

Also, take a look at using include(PathSpec) with PathSpec.from() as you will be able to use either Servlet-style path specs as well as Regex path specs.

[jmbeach]

Thank you! Yes, each QoSHandler can have a different configuration. This is what I needed