Thank you Mr. Clement for your response. Actually, I prefer to create the component types dynamically. Therefore, annotations is not my first preference when it comes to creating the component type. As I mentioned earlier, I am targeting ipojo APIs. The more things are dynamic, the happier I will be.
I've been reading in the link you sent me to configure the framework. It is not clear in that page which properties are used to solve my class loader issue. I've tried the following properties: org.osgi.framework.system.packages.extra org.osgi.framework.bundle.parent: I suspected the later one since its description says, "Specifies which class loader is used for boot delegation", and you mentioned that I am using the wrong class loader. I tried to configure the framework with different values for those properties but none of them helped solving my issues. My instance is still not available. I'd appreciate it if you can possibly be more specific regarding which property/properties I need to set when configuring Felix, so it helps me solving the problem. Thanks again for your help. Zaid -----Original Message----- From: Clement Escoffier [mailto:[email protected]] Sent: Saturday, January 25, 2014 6:32 PM To: Apache Felix - Users Mailing List Subject: Re: iPOJO Components instantiated but no visible output Hi, The example you just gave use the iPOJO API. This API is intended to create component types (i.e. factories) dynamically which does not seem to be what you want. This way works but is really cumbersome as you can't use the annotations. What I proposed you was to use either the config admin or the factory service or instance declarations. It looks like iPOJO can't see your instance declaration because they are exposed using the wrong class loader (from code outside the OSGi framework). I realized the issue when reading all your mails again. To get it to work this way, check how to configure the framework to avoid class loader mismatch between code from inside and outside the framework: http://felix.apache.org/site/apache-felix-framework-launching-and-embedding.html Regards, Clement On 25 janv. 2014, at 14:33, Zaid Jamal Saeed Al Mahmoud <[email protected]> wrote: > Dear Mr. Clement, > > I really want to know so bad, why you told the person in this post: > http://apache-felix.18485.x6.nabble.com/Using-iPOJO-API-to-create-components-and-instances-td4881802.html > that his code should work if he used the following way: > > new PrimitiveComponentType() > .setBundleContext(localContext) > .setClassName(ProviderA.class.getName()) > .setValidateMethod("start") > .setInvalidateMethod("stop") > .addService(new Service()) > .createInstance("TestProviderA"); > > But you told me not to use this way and to use DefaultInstanceDeclaration > instead. > > This really confused me because I saw an answer for you in the same post with > the following code: > > type = new > PrimitiveComponentType().setBundleContext(bundle.getBundleContext()) > .setComponentTypeName("raw.type") > .setClassName("org.apache.felix.ipojo.test.asm.Raw") > .setImmediate(true); > type.start(); > > instance = type.createInstance(); > > > What's different in my case? I can maybe switch to the other way if > Declaration Instance doesn't work. So, I need a clarification from you. > > > > Zaid > > -----Original Message----- > From: Zaid Jamal Saeed Al Mahmoud > Sent: Saturday, January 25, 2014 12:03 AM > To: '[email protected]' > Subject: RE: iPOJO Components instantiated but no visible output > > Yes. This is the output: > > ipojo:instances > Instance org.apache.felix.ipojo.arch.gogo.Arch-0 -> valid > > > > -----Original Message----- > From: Clement Escoffier [mailto:[email protected]] > Sent: Saturday, January 25, 2014 12:01 AM > To: Apache Felix - Users Mailing List > Subject: Re: iPOJO Components instantiated but no visible output > > Hi, > > Could you try : > >> ipojo:instances > > Regards, > > Clement > > On 24 janv. 2014, at 20:49, Zaid Jamal Saeed Al Mahmoud > <[email protected]> wrote: > >> Hey, I manipulated my bundle using Ipojo Ant Task, as the following: >> >> <project> >> <target name="main"> >> <!-- Change the path to point on the iPOJO Ant task jar--> >> <taskdef name="ipojo" >> classname="org.apache.felix.ipojo.task.IPojoTask" >> >> classpath="C:/Users/zaid.almahmoud/Dropbox/EBTIC/ADERE/feasibility-codes/ipojo/ipojo-distribution-1.11.0/bundle/org.apache.felix.ipojo.ant-1.11.0.jar"/> >> <ipojo >> >> input="C:/Users/zaid.almahmoud/Desktop/plugins/HelloService_1.0.0.201401222235.jar" >> >> output="C:/Users/zaid.almahmoud/Desktop/plugins/Manipulated_HelloService.jar" >> >> /> >> </target> >> </project> >> >> >> Now, I can see in my app that the factory is valid. This is the output in >> the command: >> g! ipojo:factories >> Factory my-factory (VALID) >> Factory org.apache.felix.ipojo.arch.gogo.Arch (UNKNOWN) - Private >> >> Therefore the factory "my-factory" is available unlike before. >> >> >> However, my instance is not available, which was created as the following: >> DefaultInstanceDeclaration providerDeclaration = new >> DefaultInstanceDeclaration(b.getBundleContext(), "my-factory"); >> providerDeclaration.start(); >> >> Again, this does not show an error, but it doesn't display the expected >> output in the start() method of the bundle, and on the command, I can see: >> >> g! ipojo:instance my-factory-0 >> Instance named 'my-factory-0' not found >> >> >> Can you help please? Thanks. >> >> >> >> >> >> >> -----Original Message----- >> From: Zaid Jamal Saeed Al Mahmoud >> [mailto:[email protected]] >> Sent: Thursday, January 23, 2014 2:15 PM >> To: [email protected] >> Subject: RE: iPOJO Components instantiated but no visible output >> >> It displays this: >> >> ipojo:factories >> Factory org.apache.felix.ipojo.arch.gogo.Arch (UNKNOWN) - Private >> >> >> I am not sure what you mean by iPOJO manipulation on my bundles, But >> again, I am not using ANT or MAVEN. I export the bundles normally in eclipse >> (Using export->deployable plugins and fragments). >> Could it be the issue? >> >> >> -----Original Message----- >> From: Clement Escoffier [mailto:[email protected]] >> Sent: Thursday, January 23, 2014 11:52 AM >> To: Apache Felix - Users Mailing List >> Subject: Re: iPOJO Components instantiated but no visible output >> >> Hi, >> >> The output are interesting, it looks like your instances are not declared >> correctly. Can you try: >> >>> ipojo:factories >> >> >> By the way, how are you applying the iPOJO manipulation on your bundles ? >> >> Regards, >> >> Clement >> >> On 23 janv. 2014, at 08:30, Zaid Jamal Saeed Al Mahmoud >> <[email protected]> wrote: >> >>> Okay, I did that. Here's the output: >>> >>> g! ipojo:instances >>> Instance org.apache.felix.ipojo.arch.gogo.Arch-0 -> valid >>> >>> g! ipojo:instance my-factory-0 >>> g! Instance named 'my-factory-0' not found >>> >>> g! ipojo:instance my-consumer-factory-0 Instance named >>> 'my-consumer-factory-0' not found >>> >>> >>> >>> >>> -----Original Message----- >>> From: Clement Escoffier [mailto:[email protected]] >>> Sent: Thursday, January 23, 2014 10:58 AM >>> To: Apache Felix - Users Mailing List >>> Subject: Re: iPOJO Components instantiated but no visible output >>> >>> Hi, >>> >>> Could you use the 'instances' command to retrieve the list of instances and >>> their state ? >>> (http://felix.apache.org/documentation/subprojects/apache-felix-ipoj >>> o >>> /apache-felix-ipojo-tools/ipojo-arch-command.html) >>> >>>> ipojo:instances >>> // dump all instances and declaration >>>> ipojo:instance my-factory-0 >>> // introspect the first instance >>>> ipojo:instance my-consumer-factory-0 >>> // introspect the second instance >>> >>> Regards, >>> >>> Clement >>> >>> >>> On 22 janv. 2014, at 20:38, Zaid Jamal Saeed Al Mahmoud >>> <[email protected]> wrote: >>> >>>> I have 2 iPOJO Components. >>>> 1- A Provider bundle that provides "Hello" service. Below is the >>>> implementation of the component: >>>> package helloipojo; >>>> >>>> >>>> import helloipojo.service.HelloService; >>>> >>>> import org.apache.felix.ipojo.annotations.Component; >>>> import org.apache.felix.ipojo.annotations.Invalidate; >>>> import org.apache.felix.ipojo.annotations.Provides; >>>> import org.apache.felix.ipojo.annotations.Validate; >>>> >>>> >>>> @Component(name="my-factory") >>>> @Provides >>>> public class HelloServiceImpl implements HelloService{ >>>> >>>> @Override >>>> public void sayHello() { >>>> >>>> System.out.println("Hello iPojo!"); >>>> >>>> } >>>> >>>> >>>> @Validate >>>> public void start() throws Exception { >>>> >>>> System.out.println("Hello, I am ipojo bundle start method"); >>>> >>>> } >>>> >>>> @Invalidate >>>> public void stop() throws Exception { >>>> >>>> System.out.println("Bye Bye, I am ipojo bundle stop method"); >>>> >>>> } >>>> >>>> >>>> >>>> } >>>> 2- Consumer bundle that uses HelloService object as the follwing: >>>> package helloserviceconsumer; >>>> >>>> import helloipojo.service.HelloService; >>>> >>>> import org.apache.felix.ipojo.annotations.Component; >>>> import org.apache.felix.ipojo.annotations.Invalidate; >>>> import org.apache.felix.ipojo.annotations.Requires; >>>> import org.apache.felix.ipojo.annotations.Validate; >>>> >>>> @Component(name="my-consumer-factory") >>>> public class HelloConsumer { >>>> @Requires >>>> HelloService helloObject; >>>> >>>> @Validate >>>> private void start() { >>>> // Starting method >>>> //... >>>> helloObject.sayHello(); >>>> //... >>>> } >>>> >>>> @Invalidate >>>> protected void stop() { >>>> // Stopping method >>>> if(helloObject!=null) { helloObject.sayHello(); >>>> } >>>> >>>> else System.out.println("hello service GONE!"); >>>> } >>>> } >>>> In a seperate Java application, I load these two bundles and start them on >>>> Apache Felix as the following: >>>> Bundle b = >>>> bundleContext1.installBundle("file:C:\\Users\\zaid.almahmoud\\Deskt >>>> o p\ \plugins\\HelloService_1.0.0.201401222235.jar"); >>>> b.start(); >>>> >>>> Bundle c = >>>> bundleContext1.installBundle("file:C:\\Users\\zaid.almahmoud\\Deskt >>>> o p\ \plugins\\HelloServiceConsumer_1.0.0.201401222257.jar"); >>>> c.start(); >>>> All the above works fine. >>>> Now, I would like to instantiate these two components dynamically and >>>> observe the consumption of the bundle provider service by the bundle >>>> consumer. I used Instance Declaration, as the following: >>>> DefaultInstanceDeclaration providerDeclaration = new >>>> DefaultInstanceDeclaration(b.getBundleContext(), "my-factory"); >>>> providerDeclaration.start(); >>>> >>>> DefaultInstanceDeclaration consumerDeclaration = new >>>> DefaultInstanceDeclaration(c.getBundleContext(), "my-consumer-factory"); >>>> consumerDeclaration.start(); No errors when >>>> running the application. However, I could not see the "Hello" Messages >>>> that exists in the start() methods of both the service provider and >>>> consumer. I see absolutely NOTHING. That means the components are not >>>> instantiated correctly. Where did I go wrong? 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] >> >> >> --------------------------------------------------------------------- >> 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]
