Many thanks. Finally, do I have a full access to my bundle services, references, properties using the declaration instance? Can I manipulate those dynamically using that instance?
Zaid -----Original Message----- From: Clement Escoffier [mailto:[email protected]] Sent: Wednesday, January 22, 2014 2:23 PM To: Apache Felix - Users Mailing List Subject: Re: Felix iPOJO - The factory associated with the component type is invalid (not started or missing handlers) Hi, On 22 janv. 2014, at 10:48, Zaid Jamal Saeed Al Mahmoud <[email protected]> wrote: > Thanks. My number 1 goal is to be able to create, start, and stop the > components dynamically. I don't think this is possible with annotations, is > it? You can create instances dynamically using either the Factory service, or the ManagedServiceFactory configurations (configuration admin), or creating instance declarations (the way I proposed in the previous mail). > > Following your advice, I tried this: > > InstanceDeclaration declaration = new > DefaultInstanceDeclaration(b.getBundleContext(), "my-factory"); DefaultInstanceDeclaration declaration = new DefaultInstanceDeclaration(b.getBundleContext(), "my-factory"); declaration.start(); Regards, Clement > > It shows no errors, but the author of the link you posted says that you can > start and stop the declaration instance. Though, I did not find a start or > stop method (declaration.start() showed a syntax error). What's going on? > > > > Zaid > > -----Original Message----- > From: Clement Escoffier [mailto:[email protected]] > Sent: Wednesday, January 22, 2014 12:53 PM > To: Apache Felix - Users Mailing List > Subject: Re: Felix iPOJO - The factory associated with the component > type is invalid (not started or missing handlers) > > Hi, > > The issue comes form the asynchronous start of iPOJO. When you create your > instance, not everything is available. > > I've several question: Why are you using the iPOJO API to declare your type > and instance ? Can't you just use the annotations ? In that case it will just > create everything smoothly. > > If you really need / want to use the API, don't create the instance like you > do, but expose an instance declaration: > http://felix.apache.org/documentation/subprojects/apache-felix-ipojo/apache-felix-ipojo-userguide/ipojo-advanced-topics/ipojo-factory-service.html#deleting-instances. > The declaration waits until the factory is valid to create the instance. > > Regards, > > Clement > > > On 21 janv. 2014, at 19:47, Zaid Jamal Saeed Al Mahmoud > <[email protected]> wrote: > >> I am trying to learn how to use Felix iPOJO API to create components >> dynamically. >> >> I have a simple bundle with the following files: >> >> 1- HelloService.java (Contains a Service Interface). >> >> /* >> >> * @author zaid almahmoud >> >> * >> >> */ >> >> package helloipojo.service; >> >> >> >> public interface HelloService >> >> { >> >> >> >> public void sayHello(); >> >> >> >> } >> >> 2- Its implementation HelloServiceImpl.java: >> >> package helloipojo; >> >> >> >> import helloipojo.service.HelloService; >> >> >> >> >> >> public class HelloServiceImpl implements HelloService{ >> >> >> >> @Override >> >> public void sayHello() { >> >> >> >> System.out.println("Hello iPojo!"); >> >> >> >> } >> >> >> >> >> >> } >> >> 3- Activator.java : >> >> package helloipojo; >> >> >> >> import org.osgi.framework.BundleActivator; >> >> import org.osgi.framework.BundleContext; >> >> >> >> >> >> public class Activator implements BundleActivator { >> >> >> >> >> >> public void start(BundleContext context) throws Exception { >> >> >> >> >> >> System.out.println("Bundle Started!"); >> >> >> >> >> >> } >> >> public void stop(BundleContext context) throws Exception { >> >> >> >> context = null; >> >> System.out.println("Bundle Stopped!"); >> >> >> >> >> >> } >> >> >> >> } >> >> MANIFEST.MF: >> >> Manifest-Version: 1.0 >> >> Bundle-ManifestVersion: 2 >> >> Bundle-Name: HelloIPojo >> >> Bundle-SymbolicName: HelloIPojo >> >> Bundle-Version: 1.0.0.qualifier >> >> Bundle-Activator: helloipojo.Activator >> >> Bundle-RequiredExecutionEnvironment: JavaSE-1.6 >> >> Import-Package: org.osgi.framework >> >> In my application, I start Felix framework and deploy the following bundles: >> >> iPOJO (core) >> >> iPOJO Composite >> >> iPOJO API >> >> According to this<http://felix.apache.org/site/apache-felix-ipojo-api.html> >> source. >> >> Next, I install my bundle, and instantiate the component. Below is my class: >> >> import java.util.ArrayList; >> >> import java.util.HashMap; >> >> import java.util.List; >> >> import java.util.Map; >> >> >> >> import org.apache.felix.framework.Felix; >> >> import org.apache.felix.framework.util.FelixConstants; >> >> import org.osgi.framework.Bundle; >> >> import org.osgi.framework.BundleContext; >> >> import org.osgi.framework.BundleException; >> >> import org.osgi.framework.Constants; >> >> import org.osgi.framework.ServiceRegistration; >> >> import org.apache.felix.ipojo.ComponentInstance; >> >> import org.apache.felix.ipojo.ConfigurationException; >> >> import org.apache.felix.ipojo.MissingHandlerException; >> >> import org.apache.felix.ipojo.UnacceptableConfiguration; >> >> import org.apache.felix.ipojo.api.ComponentType; >> >> import org.apache.felix.ipojo.api.PrimitiveComponentType; >> >> import org.apache.felix.ipojo.api.Service; >> >> >> >> public class HostApplication >> >> { >> >> private HostActivator m_activator = null; >> >> private Felix m_felix = null; >> >> >> >> >> >> public HostApplication() >> >> { >> >> // Create a configuration property map. >> >> Map config = new HashMap(); >> >> config.put(Constants.FRAMEWORK_STORAGE_CLEAN, >> Constants.FRAMEWORK_STORAGE_CLEAN_ONFIRSTINIT); >> >> // Create host activator; >> >> m_activator = new HostActivator(); >> >> List list = new ArrayList(); >> >> list.add(m_activator); >> >> >> >> config.put(FelixConstants.SYSTEMBUNDLE_ACTIVATORS_PROP, list); >> >> >> >> try >> >> { >> >> // Now create an instance of the framework with >> >> // our configuration properties. >> >> m_felix = new Felix(config); >> >> // Now start Felix instance. >> >> m_felix.start(); >> >> } >> >> catch (Exception ex) >> >> { >> >> System.err.println("Could not create framework: " + ex); >> >> ex.printStackTrace(); >> >> } >> >> >> >> >> >> // Register the application's context as an OSGi service! >> >> BundleContext bundleContext1 = m_felix.getBundleContext(); >> >> >> >> >> >> System.out.println("6"); >> >> >> >> try { >> >> >> >> //starting ipojo required bundles >> >> Bundle coreBundle = >> bundleContext1.installBundle("file:C:\\Users\\zaid.almahmoud\\Dropbox >> \\EBTIC\\ADERE\\feasibility-codes\\ipojo\\ipojo-distribution-1.11.0\\ >> bundle\\org.apache.felix.ipojo-1.6.2.jar"); >> >> coreBundle.start(); >> >> if(coreBundle.getState()== coreBundle.ACTIVE) >> >> System.out.println("Core Bundle is Active!"); >> >> >> >> Bundle apiBundle = >> bundleContext1.installBundle("file:C:\\Users\\zaid.almahmoud\\Dropbox >> \\EBTIC\\ADERE\\feasibility-codes\\ipojo\\ipojo-distribution-1.11.0\\ >> bundle\\org.apache.felix.ipojo.api-1.6.0.jar"); >> >> apiBundle.start(); >> >> if(apiBundle.getState()== apiBundle.ACTIVE) >> >> System.out.println("API Bundle is Active!"); >> >> >> >> >> >> Bundle compositeBundle = >> bundleContext1.installBundle("file:C:\\Users\\zaid.almahmoud\\Dropbox >> \\EBTIC\\ADERE\\feasibility-codes\\ipojo\\ipojo-distribution-1.11.0\\ >> bundle\\org.apache.felix.ipojo.composite-1.6.0.jar"); >> >> compositeBundle.start(); >> >> if(compositeBundle.getState()== >> compositeBundle.ACTIVE) >> >> System.out.println("Composite Bundle is >> Active!"); >> >> >> >> >> >> //HERE INSTALLING AND STARTING MY BUNDLE!! >> >> Bundle b = >> bundleContext1.installBundle("file:C:\\Users\\zaid.almahmoud\\Desktop >> \\plugins\\HelloIPojo_1.0.0.201401211340.jar"); >> >> b.start(); >> >> >> >> try { >> >> >> >> ComponentType type = new >> PrimitiveComponentType() >> >> .setBundleContext(b.getBundleContext()) >> >> .setComponentTypeName("hello.type") >> >> >> .setClassName("helloipojo.HelloServiceImpl") >> >> .setImmediate(true); >> >> type.start(); >> >> >> >> ComponentInstance instance = >> type.createInstance(); >> >> >> >> >> >> >> >> } >> >> >> >> catch (UnacceptableConfiguration >> >> | MissingHandlerException | >> ConfigurationException e) { >> >> // TODO Auto-generated catch block >> >> e.printStackTrace(); >> >> } // Create the instance >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> System.out.println("done starting bundles!"); >> >> >> >> >> >> } catch (BundleException e) { >> >> >> >> e.printStackTrace(); >> >> >> >> System.out.println("Not done!"); >> >> } >> >> >> >> >> >> >> >> //shutdownApplication(); >> >> >> >> } >> >> >> >> public Bundle[] getInstalledBundles() >> >> { >> >> // Use the system bundle activator to gain external >> >> // access to the set of installed bundles. >> >> return m_activator.getBundles(); >> >> } >> >> >> >> public void shutdownApplication() >> >> { >> >> // Shut down the felix framework when stopping the >> >> // host application. >> >> try { >> >> m_felix.stop(); >> >> } catch (BundleException e1) { >> >> // TODO Auto-generated catch block >> >> e1.printStackTrace(); >> >> } >> >> try { >> >> m_felix.waitForStop(0); >> >> } catch (InterruptedException e) { >> >> // TODO Auto-generated catch block >> >> e.printStackTrace(); >> >> } >> >> } >> >> } >> >> When I run my application, it shows the following output (with the error at >> the end): >> >> 6 >> >> Core Bundle is Active! >> >> API Bundle is Active! >> >> Composite Bundle is Active! >> >> Bundle Started! >> >> Exception in thread "main" java.lang.IllegalStateException: The >> factory associated with the component type is invalid (not started or >> missing handlers) >> >> at >> org.apache.felix.ipojo.api.ComponentType.ensureFactory(ComponentType. >> java:189) >> >> at >> org.apache.felix.ipojo.api.ComponentType.ensureAndGetFactory(Componen >> tType.java:177) >> >> at >> org.apache.felix.ipojo.api.ComponentType.createInstance(ComponentType >> .java:79) >> >> at HostApplication.<init>(HostApplication.java:109) >> >> at Embedder.main(Embedder.java:11) >> >> Where did I go wrong? Thanks. >> >> Update >> >> I could see that I am missing 2 handlers. I knew that by adding the >> following two lines: >> >> System.out.println(type.getFactory().getRequiredHandlers()); >> >> System.out.println(type.getFactory().getMissingHandlers()); >> >> The output of the above two lines is: >> >> [org.apache.felix.ipojo:architecture, >> org.apache.felix.ipojo:callback] >> >> [org.apache.felix.ipojo:architecture, >> org.apache.felix.ipojo:callback] >> >> I also tried: >> >> type.getFactory().createComponentInstance(new Properties()); >> >> then I got: >> >> org.apache.felix.ipojo.MissingHandlerException: Missing handlers : >> org.apache.felix.ipojo:architecture org.apache.felix.ipojo:callback >> >> I don't know why these handlers are missing. I tried to add them, but could >> not figure out the right syntax. Any help? Thanks. >> >> >> Zaid >> > > > --------------------------------------------------------------------- > 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]
