GWT as an OSGi bundle, using other OSGi services

Hi!

I've recently started looking into GWT, since we are about to start porting our Java-based desktop application to the web. We also have an OSGi application which contains a RESTful API that we use for other smaller applications. It would be very ideal for us to deploy our ported web app in this OSGi environment, where we can reuse the services we use for the RESTful API.

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I've seen some examples, articles and threads about people running GWT in OSGi, but that's it. Only running it in OSGi. This isn't exactly what I need. Deploying a .war into Karaf (for example) isn't a big deal. What I want is to use services exposed in OSGi. For example MBeanServer (that I think Karaf exposes automatically), or custom services, for example CustomerService (with the implementation CustomerServiceImpl) that we expose in OSGi using Aries Blueprint.

Consider this project/bundle structure

interface: Contains only interfaces for services that we want to expose in OSGi

implementation: Contains service implementations. Has a depenency on interface, but no other projects

api: This provides the RESTful API using CXF. Has a dependency on interface, but no other projects.

web-app: This would be a GWT bundle. It would have a dependency on interface, but no other projects, and I would like to inject the interfaces in my GWT-related code.

We coud choose to deploy either the api, the web-app, or both, in the same Karaf, but the main idea is to use the same code base and both parts in the same way.

How can I inject those services into my GWT-related code? I could always make the GWT-related code bundle context aware through some static stuff and fetch the services directly through that, but that doesn't feel very good. I'd rather inject the services through setter or constructor injection. However, I'm not sure how GWT is wired up.

As I mentioned, I'm very new to GWT, but I'd appreciate any assistence, suggestions, articles, etc. All I've found is only deploying GWT in OSGi, not actually using any services from OSGi.

Thanks in advance!

// Anton

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