The idea is to provide simple Scala traits for common OSGi service dependencies - they can be so easy injected using Declarative Services. Thus, if say you want to get HttpService in you component, you just need to follow two simple steps:

1. Extend you component with trait HttpServiceDep
2. Refer HttpService in your component description along with bind and unbind methods.

Example:

import com.osinka.services.dep.HttpServiceDep

class MyWebFrontend extends HttpServiceDep {
    def whatever = {
        for (httpSvc <- httpService) {
            // do whatever you want -- if you have HttpService injected
        }
    }
}

And your DS XML descriptor (e.g. OSGI-INF/frontend.xml):

<?xml version="1.0" encoding="UTF-8"?>
<component name="WWW frontend">
    <implementation class="example.MyWebFrontend"/>
    <reference
        name="HTTP service"
        interface="org.osgi.service.http.HttpService"
        bind="bindHttpService"
        unbind="unbindHttpService"
        cardinality="0..1"
        policy="dynamic"/>
</component>

• LogServiceDep
  • Provides log(level: Int, message: String) method as well (will log only if LogService was injected)
• HttpServiceDep
• ConfigAdminServiceDep

• ServiceComponent provides activate/deactivate methods and componentContext variable (Option[ComponentContext]). It also has bundleContext: Option[BundleContext] method for convinience.