I'll send the java code to your personal email Clement, /Bengt
2013/12/8 Clement Escoffier <[email protected]> > Hi, > > Would you be able to send me your interceptor class ? Indeed, my tests > work as expected. > Here is my code: https://gist.github.com/cescoffier/7859472 > > Regards, > > Clement > > On 6 déc. 2013, at 16:47, Bengt Rodehav <[email protected]> wrote: > > > No rush - I was just curious.I think it's an interesting use case myself > > and allows me to dynamically build camel routes with a number of > predefined > > "bricks/components". Very useful for us. > > > > /Bengt > > > > > > > > > > 2013/12/6 Clement Escoffier <[email protected]> > > > >> Not yet, was travelling (finally back to my office). Will check today or > >> tomorrow. > >> Actually, your use case make me think to a very interesting application > >> I’m working on. So, for sure you will get news soon. > >> > >> Regards, > >> > >> Clement > >> > >> On 6 déc. 2013, at 15:25, Bengt Rodehav <[email protected]> wrote: > >> > >>> Did you have any chance to check this Clement? > >>> > >>> /Bengt > >>> > >>> > >>> 2013/12/3 Clement Escoffier <[email protected]> > >>> > >>>> > >>>> On 3 déc. 2013, at 19:23, Bengt Rodehav <[email protected]> wrote: > >>>> > >>>>> Yes, I think I'm getting close now but it's been a bit more > complicated > >>>>> than I expected. I learn a lot about iPojo though. > >>>>> > >>>>> About triggering a re-compute... > >>>>> > >>>>> In my case The set of accepted services will not change. But my > propety > >>>>> "extenders" has changed so The services must still be recomputed. I > >> need > >>>> to > >>>>> force it. > >>>> > >>>> Then calling mDependencyModel.invalidateSelectedServices() should make > >> it > >>>> work. I will check why it’s not called. > >>>> > >>>> Regards, > >>>> > >>>> Clement > >>>> > >>>>> > >>>>> /Bengt > >>>>> Den 3 dec 2013 17:32 skrev "Clement Escoffier" < > >>>> [email protected] > >>>>>> : > >>>>> > >>>>>> Hi, > >>>>>> > >>>>>> It looks you are making great progresses. > >>>>>> > >>>>>> On 3 déc. 2013, at 17:13, Bengt Rodehav <[email protected]> wrote: > >>>>>> > >>>>>>> Thanks Clement, > >>>>>>> > >>>>>>> When I started using the bundle context retrieved using: > >>>>>>> > >>>>>>> BundleContext bc = model.getComponentInstance().getContext(); > >>>>>>> > >>>>>>> then it started to work even without using the > >> "getWrappedReference()". > >>>>>> Not > >>>>>>> sure why but it does work. > >>>>>> > >>>>>> Yes, the bundle context retrieved this way is an ‘iPOJO-aware’ > bundle > >>>>>> context, aware of the transformation aspect. > >>>>>> > >>>>>>> > >>>>>>> I've now added a configuration listener in the open() method that I > >>>>>> remove > >>>>>>> in the close() method. The notifications seem to work as well. > >>>>>>> > >>>>>>> In my listener I try to trigger a recomputing of the service > >>>>>> dependencies > >>>>>>> (that I currently now do in the "getServiceReferences()" method as > >>>>>> follows: > >>>>>>> > >>>>>>> mDependencyModel.invalidateMatchingServices(); > >>>>>>> mDependencyModel.invalidateSelectedServices(); > >>>>>>> > >>>>>>> This seems to trigger a new call to accept() but no call to > >>>>>>> getServiceReferences(). How can I accomplish that? > >>>>>> > >>>>>> First, I think that the first call would be enough. If the set of > >>>> accepted > >>>>>> services change, then the getServiceReferences should be called. > >>>>>> > >>>>>> Clement > >>>>>> > >>>>>>> > >>>>>>> /Bengt > >>>>>>> > >>>>>>> > >>>>>>> 2013/12/3 Clement Escoffier <[email protected]> > >>>>>>> > >>>>>>>> Hi, > >>>>>>>> > >>>>>>>> The error is ‘expected’ as interceptors are dealing with > transformed > >>>>>>>> service references and not (genuine) service references. Try to > use > >>>>>>>> `transformed.getWrappedReference()` to retrieve the original > >>>> reference. > >>>>>>>> > >>>>>>>> Regards, > >>>>>>>> > >>>>>>>> Clement > >>>>>>>> > >>>>>>>> On 3 déc. 2013, at 10:57, Bengt Rodehav <[email protected]> > wrote: > >>>>>>>> > >>>>>>>>> I've tried something like this: > >>>>>>>>> > >>>>>>>>> BundleContext bundleContext = > >>>>>>>>> FrameworkUtil.getBundle(IRouteExtender.class).getBundleContext(); > >>>>>>>>> > >>>>>>>>> for (ServiceReference ref : theMatchingRefs) { > >>>>>>>>> IRouteExtender extender = (IRouteExtender) > >>>>>>>> bundleContext.getService(ref); > >>>>>>>>> // Causes exception > >>>>>>>>> System.out.println("Found extender with id: " + > >>>>>>>> extender.getExtenderId()); > >>>>>>>>> } > >>>>>>>>> > >>>>>>>>> But I get the following exception: > >>>>>>>>> > >>>>>>>>> ERROR: Bundle se.digia.connect.services.generic.service [164] > >>>>>>>>> EventDispatcher: Error during dispatch. > >>>> (java.lang.ClassCastException: > >>>>>>>>> > >>>> org.apache.felix.ipojo.dependency.impl.TransformedServiceReferenceImpl > >>>>>>>>> cannot be cast to > >>>>>>>>> > >>>>>> > >> org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl) > >>>>>>>>> java.lang.ClassCastException: > >>>>>>>>> > >>>> org.apache.felix.ipojo.dependency.impl.TransformedServiceReferenceImpl > >>>>>>>>> cannot be cast to > >>>>>>>>> > >>>> > org.apache.felix.framework.ServiceRegistrationImpl$ServiceReferenceImpl > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:250) > >>>>>>>>> at > org.apache.felix.framework.Felix.getService(Felix.java:3420) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl.java:468) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > se.digia.connect.service.generic.service.ExtenderInterceptor.__M_calculateExtenders(ExtenderInterceptor.java:104) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > se.digia.connect.service.generic.service.ExtenderInterceptor.calculateExtenders(ExtenderInterceptor.java) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > se.digia.connect.service.generic.service.ExtenderInterceptor.__M_getServiceReferences(ExtenderInterceptor.java:84) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > se.digia.connect.service.generic.service.ExtenderInterceptor.getServiceReferences(ExtenderInterceptor.java) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.dependency.interceptors.DefaultServiceRankingInterceptor.onServiceArrival(DefaultServiceRankingInterceptor.java:61) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.dependency.impl.ServiceReferenceManager.applyRankingOnArrival(ServiceReferenceManager.java:559) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.dependency.impl.ServiceReferenceManager.onNewMatchingService(ServiceReferenceManager.java:510) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.dependency.impl.ServiceReferenceManager.addedService(ServiceReferenceManager.java:496) > >>>>>>>>> at > >>>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.util.Tracker$Tracked.trackAdding(Tracker.java:711) > >>>>>>>>> at > >>>>>>>>> > org.apache.felix.ipojo.util.Tracker$Tracked.track(Tracker.java:672) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.util.Tracker$Tracked.serviceChanged(Tracker.java:633) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:932) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:793) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:543) > >>>>>>>>> at > >>>>>>>>> > org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4260) > >>>>>>>>> at > >>>>>>>> org.apache.felix.framework.Felix.registerService(Felix.java:3275) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.IPojoContext.registerService(IPojoContext.java:395) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.handlers.providedservice.ProvidedService.registerService(ProvidedService.java:338) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.__M_stateChanged(ProvidedServiceHandler.java:484) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.handlers.providedservice.ProvidedServiceHandler.stateChanged(ProvidedServiceHandler.java) > >>>>>>>>> at > >>>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.InstanceManager.setState(InstanceManager.java:536) > >>>>>>>>> at > >>>>>>>>> > >>>> org.apache.felix.ipojo.InstanceManager.start(InstanceManager.java:418) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.ComponentFactory.createInstance(ComponentFactory.java:179) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:319) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.IPojoFactory.createComponentInstance(IPojoFactory.java:240) > >>>>>>>>> at > >>>>>>>>> > org.apache.felix.ipojo.IPojoFactory.updated(IPojoFactory.java:737) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.ConfigurationTracker.registerFactory(ConfigurationTracker.java:100) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.IPojoFactory.computeFactoryState(IPojoFactory.java:846) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.ComponentFactory.addedService(ComponentFactory.java:400) > >>>>>>>>> at > >>>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.util.Tracker$Tracked.trackAdding(Tracker.java:711) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.util.Tracker$Tracked.trackInitialServices(Tracker.java:596) > >>>>>>>>> at org.apache.felix.ipojo.util.Tracker.open(Tracker.java:210) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.ComponentFactory.starting(ComponentFactory.java:249) > >>>>>>>>> at > >>>>>>>> org.apache.felix.ipojo.IPojoFactory.start(IPojoFactory.java:671) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.extender.internal.linker.ManagedType$ExtensionSupport$1.call(ManagedType.java:229) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.extender.internal.linker.ManagedType$ExtensionSupport$1.call(ManagedType.java:216) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > org.apache.felix.ipojo.extender.internal.queue.JobInfoCallable.call(JobInfoCallable.java:114) > >>>>>>>>> at > >>>>>>>>> > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > >>>>>>>>> at java.util.concurrent.FutureTask.run(FutureTask.java:138) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > >>>>>>>>> at > >>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > >>>>>>>>> at java.lang.Thread.run(Thread.java:662) > >>>>>>>>> > >>>>>>>>> Any ideas? > >>>>>>>>> > >>>>>>>>> BTW, the exception is only logged in the console - not in any log > >>>>>> files. > >>>>>>>>> > >>>>>>>>> /Bengt > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> 2013/12/3 Bengt Rodehav <[email protected]> > >>>>>>>>> > >>>>>>>>>> I've now tested against trunk and I've come a lot further. > Another > >>>>>>>>>> question for you... > >>>>>>>>>> > >>>>>>>>>> I need access to my service object in the getServiceReferences() > >>>>>> method. > >>>>>>>>>> It is possible if I have the BundleContext. In the accept() > >> method I > >>>>>> get > >>>>>>>>>> the BundleContext passed as a parameter but not in the > >>>>>>>>>> getServiceReferences(). Why is that? > >>>>>>>>>> > >>>>>>>>>> How can I access the service object from the ServiceReference in > >> the > >>>>>>>>>> getServiceReferences() method? Perhaps the signature of the > >>>>>>>>>> getServiceReferences() method should be changed to take a > >>>>>> BundleContext > >>>>>>>> as > >>>>>>>>>> well? > >>>>>>>>>> > >>>>>>>>>> /Bengt > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> 2013/11/29 Bengt Rodehav <[email protected]> > >>>>>>>>>> > >>>>>>>>>>> Thanks Clement. I'll check out trunk and see how far I'll get. > >>>>>>>>>>> > >>>>>>>>>>> /Bengt > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>> 2013/11/29 Clement Escoffier <[email protected]> > >>>>>>>>>>> > >>>>>>>>>>>> Hi, > >>>>>>>>>>>> On 29 nov. 2013, at 16:21, Bengt Rodehav <[email protected]> > >>>> wrote: > >>>>>>>>>>>> > >>>>>>>>>>>>> Thanks Clement! > >>>>>>>>>>>>> > >>>>>>>>>>>>> I compared our code it turns out I had a type: I had > specified > >>>> the > >>>>>>>>>>>> handler > >>>>>>>>>>>>> to "org.apache.felix.ipojo.properties" instead of > >>>>>>>>>>>>> "org.apache.felix.ipojo:properties".. I had a period instead > >> of a > >>>>>>>>>>>> colon. > >>>>>>>>>>>>> That explains my NPE. > >>>>>>>>>>>> > >>>>>>>>>>>> I probably did a mistake while explaining. The syntax is > >>>>>>>>>>>> namespace:handlername. > >>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> Now I can also retrieve the property. I can also call the > >>>>>> getValue() > >>>>>>>>>>>> method > >>>>>>>>>>>>> that returns the value in "toString" format. Can't get the > >>>>>>>>>>>> getObjectValue() > >>>>>>>>>>>>> to work though. Looking forward to the new getCurrentValue() > >>>>>> method. > >>>>>>>>>>>> > >>>>>>>>>>>> Unfortunately the getObjectValue only work for immutable > >>>> properties. > >>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> Is it just the org.apache.felix.ipojo artifact I need to > check > >>>> out > >>>>>>>> and > >>>>>>>>>>>>> build on trunk? > >>>>>>>>>>>> > >>>>>>>>>>>> The following version contains the new method: > >>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > https://repository.apache.org/content/repositories/snapshots/org/apache/felix/org.apache.felix.ipojo/1.11.1-SNAPSHOT/org.apache.felix.ipojo-1.11.1-20131129.182110-3.jar > >>>>>>>>>>>> > >>>>>>>>>>>> Clement > >>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> /Bengt > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> 2013/11/29 Clement Escoffier <[email protected]> > >>>>>>>>>>>>> > >>>>>>>>>>>>>> Hi, > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> I’ve done some testing: > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> 1) I’m able to retrieve the properties > >>>>>>>>>>>>>> 2) I’m not able to retrieve the value > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> Here is my accept method: > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> @Override > >>>>>>>>>>>>>> public <S> TransformedServiceReference<S> > >> accept(DependencyModel > >>>>>>>>>>>>>> dependency, BundleContext context, > >>>> TransformedServiceReference<S> > >>>>>>>>>>>> ref) { > >>>>>>>>>>>>>> ConfigurationHandlerDescription h = > >>>>>>>>>>>>>> (ConfigurationHandlerDescription) > >>>>>>>>>>>>>> dependency.getComponentInstance().getInstanceDescription() > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> .getHandlerDescription("org.apache.felix.ipojo:properties"); > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> if (h == null) { > >>>>>>>>>>>>>> return null; > >>>>>>>>>>>>>> } > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> PropertyDescription description = > >>>>>>>>>>>> h.getPropertyByName(“extenders"); > >>>>>>>>>>>>>> if (description == null) { > >>>>>>>>>>>>>> return null; > >>>>>>>>>>>>>> } > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> System.out.println(description.getValue() + " / " + > >>>>>>>>>>>>>> Arrays.toString( > >>>>>>>>>>>>>> (String[]) description.getCurrentValue())); > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> return ref; > >>>>>>>>>>>>>> } > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> I’ve added the getCurrentValue() to PropertyDescription to > >>>>>> retrieve > >>>>>>>>>>>> the > >>>>>>>>>>>>>> current property value (gonna commit this ASAP). > >>>>>>>>>>>>>> (full code here: https://gist.github.com/cescoffier/7705901 > ) > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> Clement > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> On 28 nov. 2013, at 15:06, Bengt Rodehav <[email protected] > > > >>>>>> wrote: > >>>>>>>>>>>>>> > >>>>>>>>>>>>>>> Thanks! > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>> 2013/11/28 Clement Escoffier <[email protected]> > >>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> On 28 nov. 2013, at 14:36, Bengt Rodehav < > [email protected] > >>> > >>>>>>>> wrote: > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> Hello Clement, > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> I changed to the following line: > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> PropertyDescription[] propDescs = > >>>>>>>>>>>>>>>>> configHandlerDescription.getProperties(); > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> But I still get an NPE. Have you tried to call these > >> methods > >>>>>> from > >>>>>>>>>>>>>> within > >>>>>>>>>>>>>>>> an > >>>>>>>>>>>>>>>>> interceptor? > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> Not this method, but I did something pretty similar. Will > >>>>>>>>>>>> investigate to > >>>>>>>>>>>>>>>> see why you get an NPE. > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> Clement > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> /Bengt > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>> 2013/11/28 Clement Escoffier < > [email protected]> > >>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> On 28 nov. 2013, at 12:17, Bengt Rodehav < > >> [email protected] > >>>>> > >>>>>>>>>>>> wrote: > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> Hello again Clement! > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> I was away on business yesterday which is why I'm late > >>>>>>>> replying. > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> I've come a bit further now but still have problems > >>>> accessing > >>>>>>>> my > >>>>>>>>>>>>>>>>>>> component's "extenders" property. Here is what my code > >>>> looks > >>>>>>>> like > >>>>>>>>>>>>>> now: > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> * public List<ServiceReference> > >>>>>>>>>>>> getServiceReferences(DependencyModel > >>>>>>>>>>>>>>>>>>> theDependencyModel,* > >>>>>>>>>>>>>>>>>>> * List<ServiceReference> theMatching) {* > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> * ComponentInstance instance = > >>>>>>>>>>>>>>>>>>> theDependencyModel.getComponentInstance();* > >>>>>>>>>>>>>>>>>>> * InstanceDescription instanceDescription = > >>>>>>>>>>>>>>>>>>> instance.getInstanceDescription();* > >>>>>>>>>>>>>>>>>>> * ComponentTypeDescription componentTypeDescription > = > >>>>>>>>>>>>>>>>>>> instanceDescription.getComponentDescription();* > >>>>>>>>>>>>>>>>>>> * String factoryName = > >>>>>>>>>>>>>>>>>>> > componentTypeDescription.getFactory().getFactoryName();* > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> * if (FACTORY_NAME.equals(factoryName)) {* > >>>>>>>>>>>>>>>>>>> * System.out.println("Found a GenericService2");* > >>>>>>>>>>>>>>>>>>> * ConfigurationHandlerDescription > >>>>>>>> configHandlerDescription = > >>>>>>>>>>>>>>>>>>> (ConfigurationHandlerDescription) instanceDescription* > >>>>>>>>>>>>>>>>>>> * > >>>>>>>>>>>>>>>> > >> .getHandlerDescription("org.apache.felix.ipojo.properties");* > >>>>>>>>>>>>>>>>>>> * int state = instanceDescription.getState();* > >>>>>>>>>>>>>>>>>>> * System.out.println("State: " + state);* > >>>>>>>>>>>>>>>>>>> * if(ComponentInstance.VALID == > >>>>>>>>>>>> instanceDescription.getState()) > >>>>>>>>>>>>>> {* > >>>>>>>>>>>>>>>>>>> * PropertyDescription propDesc = > >>>>>>>>>>>>>>>>>>> > configHandlerDescription.getPropertyByName("extenders"); > >> // > >>>>>>>> NPE* > >>>>>>>>>>>>>>>>>>> * if(propDesc != null) {* > >>>>>>>>>>>>>>>>>>> * String extenders = propDesc.getValue();* > >>>>>>>>>>>>>>>>>>> * System.out.println("Extenders: " + > >> extenders);* > >>>>>>>>>>>>>>>>>>> * }* > >>>>>>>>>>>>>>>>>>> * else {* > >>>>>>>>>>>>>>>>>>> * System.out.println("Extenders is null");* > >>>>>>>>>>>>>>>>>>> * }* > >>>>>>>>>>>>>>>>>>> * }* > >>>>>>>>>>>>>>>>>>> * }* > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> I check the factory name to determine if this is a > >>>> component > >>>>>>>>>>>> that I > >>>>>>>>>>>>>>>>>> should > >>>>>>>>>>>>>>>>>>> intercept. Presently I wait until the component is > valid > >>>> but > >>>>>>>> I'm > >>>>>>>>>>>> not > >>>>>>>>>>>>>>>> sure > >>>>>>>>>>>>>>>>>>> if I can wait since my interceptor has to kick in > before > >>>>>> that. > >>>>>>>>>>>>>>>> Presently > >>>>>>>>>>>>>>>>>> I > >>>>>>>>>>>>>>>>>>> get a null pointer exception when I try to retrieve my > >>>>>>>> property. > >>>>>>>>>>>> Do > >>>>>>>>>>>>>> you > >>>>>>>>>>>>>>>>>>> have any idea why? It doesn't seem possible to retrieve > >>>>>>>>>>>> properties at > >>>>>>>>>>>>>>>>>> this > >>>>>>>>>>>>>>>>>>> pont. > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> Did you try to inter ate over the set of properties and > >> see > >>>>>> what > >>>>>>>>>>>> are > >>>>>>>>>>>>>>>> they ? > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> I also noticed that the method > >>>> PropertyDescription.getValue() > >>>>>>>>>>>> always > >>>>>>>>>>>>>>>>>>> returns a String. In my case the underlying object is > an > >>>>>> array > >>>>>>>> of > >>>>>>>>>>>>>>>> String > >>>>>>>>>>>>>>>>>>> (String[]). Is it possible to get the value in the > >> correct > >>>>>>>> type? > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> Yes, there is a getObjectValue(BundleContext context) > >>>> method, > >>>>>>>> but > >>>>>>>>>>>> you > >>>>>>>>>>>>>>>> need > >>>>>>>>>>>>>>>>>> to give a bundle context object used if it needs to load > >>>>>>>> classes. > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> Clement > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> /Bengt > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>> 2013/11/27 Clement Escoffier < > >> [email protected]> > >>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> Hi, > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> On 26 nov. 2013, at 16:00, Bengt Rodehav < > >>>> [email protected] > >>>>>>> > >>>>>>>>>>>> wrote: > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> I'm getting a bit closer regarding the interceptors. > >>>> Still > >>>>>>>> two > >>>>>>>>>>>>>>>> problems > >>>>>>>>>>>>>>>>>>>> for > >>>>>>>>>>>>>>>>>>>>> me: > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> a) I still don't understand how to get hold of my > >>>>>> intercepted > >>>>>>>>>>>>>>>> instance > >>>>>>>>>>>>>>>>>>>> from > >>>>>>>>>>>>>>>>>>>>> within my interceptor. I get a reference to a > >>>>>> DependencyModel > >>>>>>>>>>>> from > >>>>>>>>>>>>>>>>>> which > >>>>>>>>>>>>>>>>>>>> I > >>>>>>>>>>>>>>>>>>>>> can get a ComponentInstance. But how do I go from > there > >>>> to > >>>>>> my > >>>>>>>>>>>>>>>>>> ComponentA > >>>>>>>>>>>>>>>>>>>>> class. I need to access the property "extenders" in > >> order > >>>>>> for > >>>>>>>>>>>> my > >>>>>>>>>>>>>>>>>>>>> interceptor to do its job. > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> It depends how how is managed the extender property, > >> let’s > >>>>>>>>>>>> imagine > >>>>>>>>>>>>>>>> it’s > >>>>>>>>>>>>>>>>>> a > >>>>>>>>>>>>>>>>>>>> @Property. In this case, from the Dependency Model, > you > >>>> can > >>>>>>>>>>>> retrieve > >>>>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>> component instance. From the instance, you have access > >> to > >>>>>> the > >>>>>>>>>>>>>>>>>> introspection > >>>>>>>>>>>>>>>>>>>> layer (getInstanceDescription()), which let you > analyze > >>>> the > >>>>>>>>>>>> iPOJO > >>>>>>>>>>>>>>>>>> container. > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> To be a bit more clear, let’s see some code: > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> //First retrieve the configuration handler description > >>>> from > >>>>>>>> the > >>>>>>>>>>>>>>>> instance > >>>>>>>>>>>>>>>>>>>> container: > >>>>>>>>>>>>>>>>>>>> ConfigurationHandlerDescription description = > >>>>>>>>>>>>>>>>>>>> (ConfigurationHandlerDescription) > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>> > >>>>>> > >>>> > >> > model.getComponentInstance().getInstanceDescription().getHandlerDescription("org.apache.felix.ipojo.properties”); > >>>>>>>>>>>>>>>>>>>> // Find the extenders property > >>>>>>>>>>>>>>>>>>>> String extenders = > >>>>>>>>>>>>>>>>>> description.getPropertyByName("extenders").getValue(); > >>>>>>>>>>>>>>>>>>>> // You have your value ! > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> b) Also, when the property "extenders" is changed, I > >> need > >>>>>> to > >>>>>>>>>>>> force > >>>>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>> interceptor to recalculate the dependencies. How can > I > >>>>>>>>>>>> accomplish > >>>>>>>>>>>>>>>> that? > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> It also depends on how this reconfiguration happen. > >> Let’s > >>>>>> say > >>>>>>>>>>>> that > >>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>> instance is reconfigured from the configuration admin > or > >>>>>> iPOJO > >>>>>>>>>>>>>>>>>>>> reconfiguration abilities. In these case being > notified > >> is > >>>>>>>> quite > >>>>>>>>>>>>>>>>>> simple, as > >>>>>>>>>>>>>>>>>>>> you can register a ConfigurationListener on the > >>>>>>>>>>>>>>>>>>>> ConfigurationHandlerDescription object: > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> description.addListener(new ConfigurationListener() { > >>>>>>>>>>>>>>>>>>>> public void configurationChanged(ComponentInstance > >>>>>>>>>>>>>> instance, > >>>>>>>>>>>>>>>>>>>> Map<String, Object> configuration) { > >>>>>>>>>>>>>>>>>>>> // The extender property may have been modified > >>>>>>>>>>>>>>>>>>>> } > >>>>>>>>>>>>>>>>>>>> }); > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> Don’t forget to unregister the listener when the > >>>> interceptor > >>>>>>>> is > >>>>>>>>>>>>>>>>>> unplugged > >>>>>>>>>>>>>>>>>>>> from the instance. > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> Getting deeper into iPojo than I've been before… > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> It’s just the beginning…. (contributions are welcome > if > >>>> you > >>>>>>>> see > >>>>>>>>>>>> some > >>>>>>>>>>>>>>>>>>>> dark(er) area) > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> /Bengt > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>> 2013/11/26 Bengt Rodehav <[email protected]> > >>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>> Thanks Clement! > >>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>> 2013/11/26 Clement Escoffier < > >>>> [email protected] > >>>>>>> > >>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> Hi, > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> On 25 nov. 2013, at 20:19, Bengt Rodehav < > >>>>>>>> [email protected]> > >>>>>>>>>>>>>>>> wrote: > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> Hello Clement and as always thanks for your > detailed > >>>>>>>> answer! > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> You’re welcome. > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> It does seem a bit complicated to "require" an > >>>>>>>> interceptor. > >>>>>>>>>>>>>>>> Perhaps > >>>>>>>>>>>>>>>>>> an > >>>>>>>>>>>>>>>>>>>>>>>> easier way of doing this might be possible in the > >>>>>> future. > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> I think it would be a good addition. Thinking about > >> it. > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> Anyway, I'm not > >>>>>>>>>>>>>>>>>>>>>>>> exactly sure that I understood what you meant. > Just > >> to > >>>>>>>>>>>> clarify: > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> My Component A (the component to be intercepted) > has > >>>> the > >>>>>>>>>>>>>> following > >>>>>>>>>>>>>>>>>>>> code: > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> @Property(name = "extenders", mandatory = false) > >>>>>>>>>>>>>>>>>>>>>>>> private String[] mExtenderIds; > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> @Requires(optional = true, id = "extenders") > >>>>>>>>>>>>>>>>>>>>>>>> private IExtender[] mExtenders; > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> Do you mean that I should put a filter on the > >>>> @Requires > >>>>>>>> with > >>>>>>>>>>>>>>>>>>>>>>> id="extenders" > >>>>>>>>>>>>>>>>>>>>>>>> (the intercepted = true) so that it can only be > >>>>>> satisfied > >>>>>>>>>>>> if my > >>>>>>>>>>>>>>>>>>>>>>> interceptor > >>>>>>>>>>>>>>>>>>>>>>>> has added that property? > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> Exactly. > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> But how do I then handle the situation where my > >>>>>> Component > >>>>>>>> A > >>>>>>>>>>>> does > >>>>>>>>>>>>>>>> not > >>>>>>>>>>>>>>>>>>>>>>>> require any extenders? In that case I was planning > >> on > >>>>>>>>>>>> setting > >>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>>>>> dependency to optional to make my instance valid > >>>> without > >>>>>>>> any > >>>>>>>>>>>>>>>>>>>> extenders. > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> Or, perhaps I could first set the @Requires to > >>>> mandatory > >>>>>>>>>>>> (with > >>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>>>> filter): > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> @Requires(optional = false, id = "extenders", > >>>>>>>>>>>>>>>>>>>>>>> filter="(intercepted=true)") > >>>>>>>>>>>>>>>>>>>>>>>> private IExtender[] mExtenders; > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> Then, if my interceptor sees that the instance > does > >>>> not > >>>>>>>>>>>> require > >>>>>>>>>>>>>>>> any > >>>>>>>>>>>>>>>>>>>>>>>> extenders it can set the dependency to become > >>>> optional. > >>>>>>>> This > >>>>>>>>>>>>>> way I > >>>>>>>>>>>>>>>>>>>> both > >>>>>>>>>>>>>>>>>>>>>>>> require the interceptor (via the filter) and I > >> ensure > >>>>>> that > >>>>>>>>>>>> the > >>>>>>>>>>>>>>>> only > >>>>>>>>>>>>>>>>>>>> way > >>>>>>>>>>>>>>>>>>>>>>> to > >>>>>>>>>>>>>>>>>>>>>>>> allow the instance to be valid without the > >> dependency > >>>> is > >>>>>>>> if > >>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>>>> interceptor > >>>>>>>>>>>>>>>>>>>>>>>> has explicitly set the dependency to optional. > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> That would work. You can change the optionality > >> status > >>>> of > >>>>>>>> the > >>>>>>>>>>>>>>>>>>>> dependency > >>>>>>>>>>>>>>>>>>>>>>> from the dependency model you get in the > interceptor. > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> Regards, > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> Clement > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> /Bengt > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> 2013/11/25 Clement Escoffier < > >>>>>> [email protected] > >>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> Hi, > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> On 25 nov. 2013, at 11:04, Bengt Rodehav < > >>>>>>>>>>>> [email protected]> > >>>>>>>>>>>>>>>>>> wrote: > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> I've started to investigate using iPojo > >>>> interceptors. > >>>>>>>> I'm > >>>>>>>>>>>>>> using > >>>>>>>>>>>>>>>>>>>> iPojo > >>>>>>>>>>>>>>>>>>>>>>>>>> version 1.11.0. I want to accomplish the > >> following: > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> Component A can be "extended" by specifying a > list > >>>> of > >>>>>>>>>>>>>> (required) > >>>>>>>>>>>>>>>>>>>>>>>>>> "extenders" (actually their id's), like this: > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> @Property(name = "extenders", mandatory = false) > >>>>>>>>>>>>>>>>>>>>>>>>>> private String[] mExtenderIds; > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> @Requires(optional = true, id = "extenders") > >>>>>>>>>>>>>>>>>>>>>>>>>> private IExtender[] mExtenders; > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> The property is optional but if any extenderId's > >> are > >>>>>>>>>>>> listed > >>>>>>>>>>>>>> then > >>>>>>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>>>>>>> @Requires should require that IExtender's with > the > >>>>>>>>>>>>>> corresponding > >>>>>>>>>>>>>>>>>>>>>>>>> extenderId > >>>>>>>>>>>>>>>>>>>>>>>>>> is started. > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> The IExtender interface contains the following > >>>> method: > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> public String getExtenderId(); > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> Thus, every extender has an extenderId and if > that > >>>> id > >>>>>> is > >>>>>>>>>>>>>> listed > >>>>>>>>>>>>>>>>>> in a > >>>>>>>>>>>>>>>>>>>>>>>>>> components "extender" property then the > >>>> corresponding > >>>>>>>>>>>> service > >>>>>>>>>>>>>>>>>> should > >>>>>>>>>>>>>>>>>>>>>>> be > >>>>>>>>>>>>>>>>>>>>>>>>>> required, otherwise not. > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> My idea (actually Clement's idea from a previous > >>>>>>>>>>>> conversation > >>>>>>>>>>>>>> on > >>>>>>>>>>>>>>>>>>>> this > >>>>>>>>>>>>>>>>>>>>>>>>>> list). is to use a RankingInterceptor that > returns > >>>> an > >>>>>>>>>>>> empty > >>>>>>>>>>>>>>>> array > >>>>>>>>>>>>>>>>>>>>>>> until > >>>>>>>>>>>>>>>>>>>>>>>>> all > >>>>>>>>>>>>>>>>>>>>>>>>>> required services are present. > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> I think this is doable but in order for my > >>>>>>>>>>>> RankingInterceptor > >>>>>>>>>>>>>> to > >>>>>>>>>>>>>>>>>>>>>>> work, it > >>>>>>>>>>>>>>>>>>>>>>>>>> must have access to the component's "extenders" > >>>>>>>> property. > >>>>>>>>>>>> It > >>>>>>>>>>>>>>>> would > >>>>>>>>>>>>>>>>>>>>>>> then > >>>>>>>>>>>>>>>>>>>>>>>>> go > >>>>>>>>>>>>>>>>>>>>>>>>>> through all the services implementing the > >> IExtender > >>>>>>>>>>>> interface > >>>>>>>>>>>>>>>> and > >>>>>>>>>>>>>>>>>> if > >>>>>>>>>>>>>>>>>>>>>>>>> there > >>>>>>>>>>>>>>>>>>>>>>>>>> are extenders corresponding to the required > >>>>>> extenderId's > >>>>>>>>>>>> it > >>>>>>>>>>>>>>>> would > >>>>>>>>>>>>>>>>>>>>>>> return > >>>>>>>>>>>>>>>>>>>>>>>>>> all of those, otherwise it would return an empty > >>>> list. > >>>>>>>>>>>> Also, > >>>>>>>>>>>>>> if > >>>>>>>>>>>>>>>> a > >>>>>>>>>>>>>>>>>>>>>>> list of > >>>>>>>>>>>>>>>>>>>>>>>>>> extenderId's was specified, then the service > >>>>>> dependency > >>>>>>>>>>>> is set > >>>>>>>>>>>>>>>> to > >>>>>>>>>>>>>>>>>>>>>>>>>> mandatory, otherwise to optional. > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> My problem is how to gain access to the > >>>> configuration > >>>>>>>>>>>> property > >>>>>>>>>>>>>>>>>> (the > >>>>>>>>>>>>>>>>>>>>>>>>>> "extenders" property) of my component from the > >>>>>>>>>>>> interceptor. > >>>>>>>>>>>>>> How > >>>>>>>>>>>>>>>>>> can > >>>>>>>>>>>>>>>>>>>> I > >>>>>>>>>>>>>>>>>>>>>>> do > >>>>>>>>>>>>>>>>>>>>>>>>>> this? > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> When the interceptor is hooked to a dependency, > it > >>>>>>>>>>>> receives the > >>>>>>>>>>>>>>>>>>>>>>> dependency > >>>>>>>>>>>>>>>>>>>>>>>>> model object. From this object you can retrieve > the > >>>>>>>>>>>> component > >>>>>>>>>>>>>>>>>>>> instance > >>>>>>>>>>>>>>>>>>>>>>> and > >>>>>>>>>>>>>>>>>>>>>>>>> get the introspection metadata. > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> Another question I have is how to make sure that > >> the > >>>>>>>>>>>>>> interceptor > >>>>>>>>>>>>>>>>>> is > >>>>>>>>>>>>>>>>>>>>>>>>> active. > >>>>>>>>>>>>>>>>>>>>>>>>>> If the interceptor is not active then my > component > >>>>>> could > >>>>>>>>>>>>>> become > >>>>>>>>>>>>>>>>>>>>>>>>> erroneously > >>>>>>>>>>>>>>>>>>>>>>>>>> valid. Would it be feasible to have a mandatory > >>>>>>>>>>>> dependency on > >>>>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>>>>>>> interceptor? > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> Unfortunately not, at least not easily. What you > >> can > >>>> do > >>>>>>>> is > >>>>>>>>>>>> a > >>>>>>>>>>>>>>>>>>>>>>> combination > >>>>>>>>>>>>>>>>>>>>>>>>> between a filter and two interceptors: the > ranking > >>>>>>>>>>>> interceptors > >>>>>>>>>>>>>>>> as > >>>>>>>>>>>>>>>>>>>> you > >>>>>>>>>>>>>>>>>>>>>>> did, > >>>>>>>>>>>>>>>>>>>>>>>>> and a tracking interceptor. Let me explain: > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> Let’s imagine your consumer with your service > >>>>>> dependency. > >>>>>>>>>>>> Add a > >>>>>>>>>>>>>>>>>>>> filter > >>>>>>>>>>>>>>>>>>>>>>>>> that will be resolved only if your interceptor is > >>>>>> there, > >>>>>>>>>>>>>>>> something > >>>>>>>>>>>>>>>>>>>>>>> like: > >>>>>>>>>>>>>>>>>>>>>>>>> (intercepted=true). > >>>>>>>>>>>>>>>>>>>>>>>>> Your interceptor implement both tracking and > >> ranking > >>>>>>>>>>>>>>>> interceptors. > >>>>>>>>>>>>>>>>>>>> When > >>>>>>>>>>>>>>>>>>>>>>>>> the accept method is called on your interceptor, > it > >>>>>> can > >>>>>>>>>>>>>>>>>> ‘transform’ > >>>>>>>>>>>>>>>>>>>>>>> the > >>>>>>>>>>>>>>>>>>>>>>>>> original service reference to add the > ‘intercepted’ > >>>>>>>>>>>> property > >>>>>>>>>>>>>>>>>>>>>>>>> (ref.addProperty(“intercepted”, true);) This > >> modified > >>>>>>>>>>>> service > >>>>>>>>>>>>>>>>>>>> reference > >>>>>>>>>>>>>>>>>>>>>>>>> matches your filter. Then, do your ranking policy > >> are > >>>>>> we > >>>>>>>>>>>>>>>> discussed. > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> This solution ensure that your dependency can > only > >> be > >>>>>>>>>>>> resolved > >>>>>>>>>>>>>> if > >>>>>>>>>>>>>>>>>>>> your > >>>>>>>>>>>>>>>>>>>>>>>>> interceptor is there. Indeed without the > >> interceptor, > >>>>>> the > >>>>>>>>>>>>>> filter > >>>>>>>>>>>>>>>>>> does > >>>>>>>>>>>>>>>>>>>>>>> not > >>>>>>>>>>>>>>>>>>>>>>>>> match. > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> Regards, > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> Clement > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>>> /Bengt > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>> > --------------------------------------------------------------------- > >>>>>>>>>>>>>>>>>>>>>>>>> To unsubscribe, e-mail: > >>>>>>>> [email protected] > >>>>>>>>>>>>>>>>>>>>>>>>> For additional commands, e-mail: > >>>>>>>>>>>> [email protected] > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>> > --------------------------------------------------------------------- > >>>>>>>>>>>>>>>>>>>>>>> To unsubscribe, e-mail: > >>>>>> [email protected] > >>>>>>>>>>>>>>>>>>>>>>> For additional commands, e-mail: > >>>>>>>> [email protected] > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>> > >>>>>>>> > >> --------------------------------------------------------------------- > >>>>>>>>>>>>>>>>>>>> To unsubscribe, e-mail: > >>>> [email protected] > >>>>>>>>>>>>>>>>>>>> For additional commands, e-mail: > >>>>>> [email protected] > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>> > --------------------------------------------------------------------- > >>>>>>>>>>>>>>>>>> To unsubscribe, e-mail: > >> [email protected] > >>>>>>>>>>>>>>>>>> For additional commands, e-mail: > >>>> [email protected] > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>> > --------------------------------------------------------------------- > >>>>>>>>>>>>>>>> To unsubscribe, e-mail: > [email protected] > >>>>>>>>>>>>>>>> For additional commands, e-mail: > >> [email protected] > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>>>> > >>>>>>>>>>>>>> > >>>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>> > --------------------------------------------------------------------- > >>>>>>>>>>>> To unsubscribe, e-mail: [email protected] > >>>>>>>>>>>> For additional commands, e-mail: [email protected] > >>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >> --------------------------------------------------------------------- > >>>>>>>> To unsubscribe, e-mail: [email protected] > >>>>>>>> For additional commands, e-mail: [email protected] > >>>>>>>> > >>>>>>>> > >>>>>> > >>>>>> > >>>>>> > --------------------------------------------------------------------- > >>>>>> To unsubscribe, e-mail: [email protected] > >>>>>> For additional commands, e-mail: [email protected] > >>>>>> > >>>>>> > >>>> > >>>> > >>>> --------------------------------------------------------------------- > >>>> To unsubscribe, e-mail: [email protected] > >>>> For additional commands, e-mail: [email protected] > >>>> > >>>> > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: [email protected] > >> For additional commands, e-mail: [email protected] > >> > >> > >
