I am trying to write a "bootstrap" client. I want to be able to dynamically push new application modules or update running modules without having to have my users even aware that I am doing so. My thought is to back all the bundles in a database layer which the application monitors for loading, unloading and updating modules as necessary. Perhaps OBR is not even necessary for this functionality. I am just exploring all options for usage of OSGi.
Damon On Wed, Mar 18, 2009 at 5:55 AM, Richard S. Hall <[email protected]>wrote: > Typically, OBR is used by installing the bundle into a running framework, > but I suppose it is possible to use it like you are trying to do. You will > have to make sure to export its classes from the system bundle. > > To set the URL to the repository.xml file, you must specify it with > "obr.repository.url" in the configuration properties. > > I am not sure what you mean by saying you are trying to provide a dynamic > layer under your application to update its libraries. Your application has > to be built from bundles and installed inside the OSGi framework to get this > to work, is that your plan? > > -> richard > > > On 3/17/09 6:19 PM, Damon Jacobsen wrote: > >> Richard, >> >> Using that page as a reference, I tried this: >> >> Felix felix = new Felix(configMap); >> felix.start(); >> BundleContext bundleContext = felix.getBundleContext(); >> RepositoryAdmin admin = new RepositoryAdminImpl(bundleContext,null); >> Resolver resolver = admin.resolver(); >> for (Resource resource : admin.discoverResources("*")) >> System.out.println(resource.getId()); >> >> I am trying to start really simple, but this code returns an NPE. Should I >> be using the Felix BundleContext? How do I spcify the configuration xml to >> the Felix context? Is this the proper way to discover resources? I am >> trying >> to provide a dynamic layer under my application so that I may update >> libraries on the fly, but I don't seem to be getting how this all works. >> >> Damon >> >> On Tue, Mar 17, 2009 at 2:31 PM, Richard S. Hall<[email protected] >> >wrote: >> >> >> >>> I am not sure how much documentation is available. You can search for the >>> original RFC 112, which Peter Kriens made available from one of his >>> blogs. >>> There is our web page on our impl: >>> >>> http://felix.apache.org/site/apache-felix-osgi-bundle-repository.html >>> >>> The approach is fairly simple. You populate the OBR repo using a URL to a >>> repository.xml file. You can then use the OBR service interface to >>> discover >>> available bundles. You can tell OBR which bundles you are interested in >>> using the Resolver interface, then it will resolve their transitive >>> dependencies and deploy them for you into your running framework. >>> >>> That's about it. >>> >>> -> richard >>> >>> >>> On 3/17/09 4:16 PM, Damon Jacobsen wrote: >>> >>> >>> >>>> I sent an email earlier trying to figure out some basics. I think I have >>>> gotten some sort of embedded Felix framework running. I am trying to >>>> figure >>>> out how to discover and activate bundles using OBR. I am assuming that >>>> it >>>> works similar to Maven in the sense that there is some ways to say I am >>>> looking for artifact X at revision Y and OBR will resolve it and load my >>>> bundle. Are there any good articles for using OBR, possibly within an >>>> embedded context? Any help would be appreciated. >>>> >>>> Damon Jacobsen >>>> >>>> >>>> >>>> >>>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: [email protected] >>> For additional commands, e-mail: [email protected] >>> >>> >>> >>> >> >> >> >
