>>>>> Serge Huber <[email protected]>: > Hello everyo > I've just started a Google Document where I started a step-by-step > comparison of creating a REST service with Karaf and Spring Boot. I > used a guide from Spring boot as a starting point and copied all the > steps over from there. I haven't done the Karaf part because I'm sure > others can do it and I'm a little pressed for time this morning.
Here's a code example of setting up a Jersey REST service in karaf: https://github.com/steinarb/jersey-demo It defines an OSGi service in the bundle jerseyinkaraf.servicedef, implements the service with a DS component in the bundle jerseyinkaraf.services. Then it creates a web whiteboard DS component that implements a Servlet service based on the Jersey servlet container. In that DS component, it does a little magic to connect the Jersey resources to OSGi services. Basically this init() method makes it possible to have the OSGi services injected into the Jersey resources when Jersey creates them: https://github.com/steinarb/jersey-demo/blob/master/jerseyinkaraf.webapi/src/main/java/no/priv/bang/demos/jerseyinkaraf/webapi/CounterServiceServlet.java#L54 A Jersey resource with an OSGi service injection looks like this: https://github.com/steinarb/jersey-demo/blob/master/jerseyinkaraf.webapi/src/main/java/no/priv/bang/demos/jerseyinkaraf/webapi/resources/CounterResource.java#L28 The jerseyinkaraf.webgui bundle contains a DS component that creates a web whiteboard Servlet service that defines a simple web GUI for the counter service. The top POM also creates and attaches a feature.xml file including all of the bundles' feature repositories.
