Thank you. This is greatly appreciated. Yes, I'm using it with Blueprint. I've created a Microwebserver that listens for registration events to bind SOAP/REST implementations. In the environment I'm working in various organizations are interoperating and have different security and data requirements so being able to bootstrap multiple microservers that listen for registration events and filter on a service property, inventory, invoices, etc. permits me a good way to do general set up of interceptors and providers and not have to replicate them.
In order to do fast prototyping of web services I use stub data and register via some common OSGi interface like com.foo.InventoryService. That also means it is useful when I'm testing the deployments themselves. For example, I have a common API bundle and canonical data models. The "front end" registers itself and as picked up by the microsserver and exposed as a web service. It, in turn, picks up a "back end" interface that may be a test bundle or it may be the actual connection to some back end system (JDEdwards in one case). The back end does the calls to the SOAP services and dozer transforms to canonical models. What I'd like to be able to do during deployment is install the front end with the test bundles. Obviously the front end only knows it via the OSGi registry interface it is looking for and receives that. That would permit me to install my front end with the back end test bundles and run SOAP UI tests against everything to verify that everything is working. Then I want to install the higher ranking production bundles and would like those to automatically get switched. Part of the reason for that is that I have one test bundle that exposes all the back end services with a ranking of 3 but I have a multitude of back end bundles each exposing their own individual services. For example, the test bundle might have invoice, inventory, sales, etc. all exposed as services. But the actual bundle for inventory client services would only expose one interface. I'm also going to use that same architecture to enable remote service bundles when I want to do passthroughs. In other words, I might have a front end web service exposed with security, interceptors, etc. in a DMZ but when it pulls the service instead of hitting either a test or implementation bundle it will hit a passthrough call to another web service (I just Camel CXF routes in the bundle). The microserver works very well and I'm hoping to put it up on Github one of these days to make it available to the community. Many of my clients are looking for a more flexible microservices approach and a lot of them are Java developers who are not savvy to blueprint, Camel, etc. I actually had one recently who told me that Fuse/Camel/Servicemix isn't really Java. Well, they have something of a point, I guess. The other issue I'd looked at that is a bit of a hold up is the problem of not being able to use properties substitutions in filters. In other words, I can't have a cfg file that specifies TEST, PRODUCTION, REMOTE and have that used as a filter since that string has to be hard coded. I'll look at DS and see if it buys me anything in terms of flexibility. Thanks, Brad On Fri, Apr 1, 2016 at 3:44 AM, David Bosschaert <david.bosscha...@gmail.com > wrote: > Hi Brad, > > It depends a little bit on what technology you use to consume the service. > I guess you're using Blueprint since this mail is sent to Aries and as > Christian mentions there may be some work needed there. > > If you use Declarative Services you can get a re-binding behaviour by > using Dynamic (and/or Greedy) service references, which basically will have > the effect that your client is automatically rebound if a new service with > a higher ranking becomes available. You can see an example of such a client > here: > https://github.com/coderthoughts/primes/blob/master/client/src/main/java/org/coderthoughts/primes/client/PrimeClient.java > and > http://coderthoughts.blogspot.com/2016/02/branch-by-abstraction-and-osgi.html > > Cheers, > > David > > On 1 April 2016 at 06:58, Christian Schneider <ch...@die-schneider.net> > wrote: > >> The current behaviour is required by the spec. We plan to add an option >> to configure this https://issues.apache.org/jira/browse/ARIES-1314. >> Unfortunately I did not yet have the time to implement this. >> >> Christian >> >> 2016-03-31 19:39 GMT+02:00 Brad Johnson <brad.john...@mediadriver.com>: >> >>> I've set up separate bundles exposing the same service interface with >>> different ranking. The test stubs are low ranking and the production code >>> is higher ranking. >>> >>> The problem is I'm seeing a first come, first served behavior and not >>> selection of service based on ranking. If I stop/uninstall a bundle then >>> the other service is immediately picked up as one would expect. But if I >>> restart a bundle, even if it has the highest service ranking, then the >>> lower ranking service is bound while the bundle with the higher ranking >>> service restarts. What I'd expected/hoped is that the manager would >>> automatically switch the proxy over to the higher ranking service if no >>> other filters are specified. Is there a setting or flag I'm missing that >>> would trigger that behavior? >>> >>> Brad >>> >> >> >> >> -- >> -- >> Christian Schneider >> http://www.liquid-reality.de >> <https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.liquid-reality.de> >> >> Open Source Architect >> http://www.talend.com >> <https://owa.talend.com/owa/redir.aspx?C=3aa4083e0c744ae1ba52bd062c5a7e46&URL=http%3a%2f%2fwww.talend.com> >> > >
