Hmmm... Here's my metadata.xml...
I get the following error: [ERROR] IPOJO-Extender : Cannot instantiate an abstract factory from org.apache.felix.ipojo.ComponentFactory org.apache.felix.ipojo.ConfigurationException: A component needs a class name : component immediate="true" at org.apache.felix.ipojo.ComponentFactory.check(ComponentFactory.java:145) at org.apache.felix.ipojo.ComponentFactory.<init>(ComponentFactory.java:121) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcce ssorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstru ctorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.felix.ipojo.Extender.createAbstractFactory(Extender.java:500) at org.apache.felix.ipojo.Extender.parse(Extender.java:301) at org.apache.felix.ipojo.Extender.startManagementFor(Extender.java:237) at org.apache.felix.ipojo.Extender.access$600(Extender.java:52) at org.apache.felix.ipojo.Extender$CreatorThread.run(Extender.java:769) at java.lang.Thread.run(Thread.java:680) Here's what I had for the Bogus Class case on the metadata.xml: <ipojo> <component className="cook.michael.BogusClass"/> </ipojo> Mike On 10/11/12 10:23 PM, "Göktürk Gezer" <[email protected]> wrote: >Just to be on the same page I installed eclipse-ipojo-plugin too. > >First finding : you don't need a bogus component. You can just type ><ipojo> ><component/> ></ipojo> > >inside you metadata.xml and it'll pass silently. > >Besides you might be hitting a bug we've fixed in trunk, because in the >same scenario I suggested to you I saw some elements in MANIFEST which >shouldn't be there. >Could you share me your MANIFEST for the final state(bogus metadata.xml + >annotations)? > >On Fri, Oct 12, 2012 at 5:05 AM, Cook, Michael J. (OCTO) < >[email protected]> wrote: > >> Hi, >> >> >>Could you tell me what happens when you remove the <ipojo/> element >>too >> >>leaving the metadata.xml empty? >> >> >> I get an error when there is no contents in the metadata.xml file. >> >> >>I could suggest you a trick to define a bogus >> >>component inside metadata.xml(Will require you to maintain a bogus >>class) >> >>so that eclipse-ipojo-plugin will not fail on metadata.xml and move >>along >> >>its way with annotations. >> >> >> I added a bogus class into the cook.michael package and put the >> @Component/@Instantiate/@Validate/@Invalidate back into the code. Then >> added this component to the metadata.xml file: >> <ipojo> >> <component className="cook.michael.BogusClass"/> >> </ipojo> >> >> >> >> The above results in the start and stop not being invoked. >> >> >>Instead of embedding Felix into eclipse you can use its own Equinox >> >>launcher. >> >> I'm developing atop Felix, because the target device is Felix based, so >>I >> would like to keep it on the same platform. >> >> >> Thank you for your help. >> Mike >> >> >> On 10/11/12 9:47 PM, "Göktürk Gezer" <[email protected]> wrote: >> >> >On Fri, Oct 12, 2012 at 4:25 AM, Cook, Michael J. (OCTO) < >> >[email protected]> wrote: >> > >> >> Göktürk, >> >> >> >> Thank you! I used #2 below and it worked well. I was able to launch >>the >> >> bundle, and I saw it output the traces I had been looking for. >> >> >> > >> >Cool ! >> > >> > >> >> >> >> On the first, if I remove the contents of the metadata.xml file, how >> >>can I >> >> use iPOJO to generate the bundle? If I leave in the <ipojo/> >>element, >> >>and >> >> I run iPOJO's "Create Bundle", I get a warning: "Neither component >> >>types, >> >> nor instances in /Users/mcook008/Workspaces/MyEclipse >> >> 8.6/iPojoTest/metadata.xml". Start and stop are not called, although >>the >> >> class is marked with @Component and @Instantiate and start/stop is >> >>marked >> >> with @Validate/@Invalidate. >> >> >> > >> >Well, I actually never used eclipse-ipojo-plugin before but it seems >>to be >> >dependent on metadata.xml but also sees the annotations on its way. >> > >> >Could you tell me what happens when you remove the <ipojo/> element too >> >leaving the metadata.xml empty? >> >> > >> >If above trick didn't work and you want to stick with >>eclipse-ipojo-plugin >> >while using annotations. I could suggest you a trick to define a bogus >> >component inside metadata.xml(Will require you to maintain a bogus >>class) >> >so that eclipse-ipojo-plugin will not fail on metadata.xml and move >>along >> >its way with annotations. >> > >> >Also it seems to me that your development environment is heavy. >>Instead of >> >embedding Felix into eclipse you can use its own Equinox launcher. >> >I suggest you to have a look at >> >>>http://felix.apache.org/site/apache-felix-ipojo-eclipse-integration.html >> >where >> >you can see basic setup.(You can use annotations or metadata of your >> >choice >> >in this setup) >> > >> > >> >Gokturk >> > >> > >> >> >> >> Mike >> >> >> >> >> >> >> >> On 10/11/12 8:54 PM, "Göktürk Gezer" <[email protected]> wrote: >> >> >> >> >Well i thought at first that you didn't specify metadata.xml but i >>see >> >>now >> >> >that you did. Mixing metadata.xml and annotations for one single >> >>component >> >> >is a mistake. For same component you must go with one of them. >> >> > >> >> >So there are 2 different ways for you: >> >> > >> >> >1- Using only annotations: Just disable the metadata.xml (easily >> >>delete it >> >> >or comment out the content ) and leave the annotations as it is. >> >> >2- Using only medata.xml: If you want to use metadata.xml then >>remove >> >>all >> >> >annotations including @validate and @invalidate and make sure your >> >> >metadata.xml looks like this: >> >> > >> >> ><ipojo> >> >> ><component className="cook.michael.MyComponentImpl"> >> >> > <callback transition="validate" method="start"/> >> >> > <callback transition="invalidate" method="stop"/> >> >> ></component> >> >> ><instance component="cook.michael.MyComponentImpl"/> >> >> ></ipojo> >> >> > >> >> >Either way should bring you where you want. Just don't mix >>annotation >> >>and >> >> >metadata usage for same component. >> >> > >> >> >Regards, >> >> >Gokturk >> >> > >> >> > >> >> > >> >> >On Fri, Oct 12, 2012 at 3:32 AM, Cook, Michael J. (OCTO) < >> >> >[email protected]> wrote: >> >> > >> >> >> Hi Göktürk, >> >> >> >> >> >> OK... Tried that. Still the same thing. There's not much to my >> >>code, >> >> >>so >> >> >> I'm including it below. Please let me know if you see anything. >> >> >> >> >> >> Thank you for helping me, >> >> >> Mike >> >> >> >> >> >> >> >> >> MyComponentImpl.java: >> >> >> >> >> >> package cook.michael; >> >> >> >> >> >> import java.io.BufferedWriter; >> >> >> import java.io.File; >> >> >> import java.io.FileWriter; >> >> >> import java.io.IOException; >> >> >> >> >> >> import org.apache.felix.ipojo.annotations.Component; >> >> >> import org.apache.felix.ipojo.annotations.Invalidate; >> >> >> import org.apache.felix.ipojo.annotations.Validate; >> >> >> import org.apache.felix.ipojo.annotations.Instantiate; >> >> >> >> >> >> @Component >> >> >> @Instantiate >> >> >> public class MyComponentImpl { >> >> >> >> >> >> @Validate >> >> >> public void start() throws IOException { >> >> >> System.err.println("Starting: " ); >> >> >> >> >> >> System.out.println("I'm starting..."); >> >> >> try{ >> >> >> // Create file >> >> >> FileWriter fstream = new >> >> >>FileWriter("/Users/mcook008/out.txt"); >> >> >> BufferedWriter out = new BufferedWriter(fstream); >> >> >> out.write("Hello Java"); >> >> >> //Close the output stream >> >> >> out.close(); >> >> >> }catch (Exception e){//Catch exception if any >> >> >> System.err.println("Error: " + e.getMessage()); >> >> >> } >> >> >> throw new IOException() ; >> >> >> } >> >> >> >> >> >> @Invalidate >> >> >> public void stop() { >> >> >> System.out.println("I'm leaving !"); >> >> >> } >> >> >> } >> >> >> >> >> >> >> >> >> metadata.xml: >> >> >> >> >> >> <ipojo> >> >> >> <component className="cook.michael.MyComponentImpl"/> >> >> >> <instance component="cook.michael.MyComponentImpl"/> >> >> >> </ipojo> >> >> >> >> >> >> >> >> >> >> >> >> iPojoTest.bnd: >> >> >> >> >> >> Import-Package: * >> >> >> Export-Package: * >> >> >> #Private-Package: >> >> >> >> >> >> >> >> >> Generated manefest.mf: >> >> >> >> >> >> Manifest-Version: 1.0 >> >> >> Export-Package: >> >>org.apache.felix.ipojo.handler.temporal,org.apache.fel >> >> >> >> >>ix.ipojo.transaction,org.apache.felix.ipojo.extender,org.apache.felix >> >> >> >> >>.ipojo.whiteboard,org.apache.felix.ipojo.handlers.event,org.apache.fe >> >> >> >> >>lix.ipojo.handlers.jmx,org.apache.felix.ipojo.annotations,cook.michae >> >> >> l >> >> >> iPOJO-Components: component { >> >>$classname="cook.michael.MyComponentImpl >> >> >> " manipulation { method { $name="$init" }method { $name="start" >> >>}meth >> >> >> od { $name="stop" }}}instance { >> >>$component="cook.michael.MyComponentI >> >> >> mpl" }component { $name="cook.michael.MyComponentImpl" >> >>$classname="co >> >> >> ok.michael.MyComponentImpl" $public="true" >> >>org.apache.felix.ipojo.ann >> >> >> otations:instantiate { }callback { $transition="invalidate" >> >>$method=" >> >> >> stop" }callback { $transition="validate" $method="start" >> >>}manipulatio >> >> >> n { method { $name="$init" }method { $name="start" }method { >> >>$name="s >> >> >> top" }}} >> >> >> Built-By: clement >> >> >> Tool: Bnd-0.0.249 >> >> >> Bundle-Name: Apache Felix iPOJO Annotations >> >> >> Created-By: 1.6.0_35 (Apple Inc.) & iPOJO >> >> >> Bundle-Vendor: The Apache Software Foundation >> >> >> Bundle-Version: 1.8.2 >> >> >> Build-Jdk: 1.6.0_31 >> >> >> Bnd-LastModified: 1350001458935 >> >> >> Bundle-ManifestVersion: 2 >> >> >> Bundle-Description: iPOJO Annotations >> >> >> Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt >> >> >> Bundle-DocURL: >> >>http://felix.apache.org/site/how-to-use-ipojo-annotatio >> >> >> ns.html >> >> >> Import-Package: org.osgi.service.log;version=1.3, >> >>org.apache.felix.ipo >> >> >> jo.handler.temporal, org.apache.felix.ipojo.transaction, >> >>org.apache.f >> >> >> elix.ipojo.architecture;version=0.9.0, >> >>org.apache.felix.ipojo.extende >> >> >> r, org.apache.felix.ipojo.whiteboard, >> >>org.apache.felix.ipojo;version= >> >> >> 0.9.0, org.apache.felix.ipojo.handlers.event, >> >>org.apache.felix.ipojo. >> >> >> handlers.jmx, org.osgi.service.cm;version=1.2, >> >>org.apache.felix.ipojo >> >> >> .annotations, cook.michael >> >> >> Bundle-SymbolicName: iPojoTest >> >> >> Originally-Created-By: Apache Maven Bundle Plugin >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> On 10/11/12 7:54 PM, "Göktürk Gezer" <[email protected]> >> wrote: >> >> >> >> >> >> >Hi, >> >> >> > >> >> >> >First of all @Component is mandatory.(For annotation based >>usage). >> >> >> > >> >> >> >But this only defines your component. To actually instantiate it >>you >> >> >> >should >> >> >> >do it deliberately. One way to do that is using @Instantiate >> >> >>annotation. >> >> >> > >> >> >> >So your code would be like: >> >> >> > >> >> >> >@Component >> >> >> >@Instantiate >> >> >> >public class foo{ >> >> >> > >> >> >> > @Validate >> >> >> > public void start() >> >> >> >.......... >> >> >> >.......... >> >> >> >} >> >> >> > >> >> >> >On Fri, Oct 12, 2012 at 1:00 AM, Cook, Michael J. (OCTO) < >> >> >> >[email protected]> wrote: >> >> >> > >> >> >> >> Sorry. Just rechecked. Used @ Component on the class. And >> >> >> >> @Invalidate/@validate on the methods. Just tried removing the >> >> >> >>@Component. >> >> >> >> Same result. No output. >> >> >> >> >> >> >> >> Mike >> >> >> >> Michael Cook >> >> >> >> VP Technology Innovation >> >> >> >> Comcast >> >> >> >> One Comcast Center >> >> >> >> Philadelphia, PA 19103 >> >> >> >> (o) 215-286-8260 >> >> >> >> (m) 609-458-0332 >> >> >> >> >> >> >> >> ----- Original Message ----- >> >> >> >> From: Cook, Michael J. (OCTO) >> >> >> >> Sent: Thursday, October 11, 2012 05:47 PM >> >> >> >> To: '[email protected]' <[email protected]> >> >> >> >> Subject: Re: Getting Started with iPOJO >> >> >> >> >> >> >> >> I used @validate/@invalidate alone. >> >> >> >> >> >> >> >> Mike >> >> >> >> >> >> >> >> Michael Cook >> >> >> >> VP Technology Innovation >> >> >> >> Comcast >> >> >> >> One Comcast Center >> >> >> >> Philadelphia, PA 19103 >> >> >> >> (o) 215-286-8260 >> >> >> >> (m) 609-458-0332 >> >> >> >> >> >> >> >> ----- Original Message ----- >> >> >> >> From: Göktürk Gezer [mailto:[email protected]] >> >> >> >> Sent: Thursday, October 11, 2012 05:39 PM >> >> >> >> To: [email protected] <[email protected]> >> >> >> >> Subject: Re: Getting Started with iPOJO >> >> >> >> >> >> >> >> Hi, >> >> >> >> >> >> >> >> I need to ask this first since it's not on your code snippet: >>Did >> >>you >> >> >> >>use >> >> >> >> @Component annotation for class where you've declared your >>start() >> >> >> >>stop() >> >> >> >> methods? Or did you use @Validate,@Invalidate alone? >> >> >> >> >> >> >> >> >> >> >> >> *Regards,* >> >> >> >> *Gokturk* >> >> >> >> >> >> >> >> On Thu, Oct 11, 2012 at 8:13 PM, Cook, Michael J. (OCTO) < >> >> >> >> [email protected]> wrote: >> >> >> >> >> >> >> >> > Hi, >> >> >> >> > >> >> >> >> > I can't seem to find a good article that will help me resolve >> >>the >> >> >> >> "getting >> >> >> >> > started" issue I am facing. >> >> >> >> > >> >> >> >> > I am using Eclipse Juno (4.2) on my Mac. >> >> >> >> > >> >> >> >> > I have downloaded and installed the iPOJO eclipse plugin, >>from: >> >> >> >> > http://clement.plop-plop.net/update/ >> >> >> >> > >> >> >> >> > I have created a sample project following the instructions >>at: >> >> >> >> > http://felix.apache.org/site/ipojo-eclipse-plug-in.html >> >> >> >> > >> >> >> >> > I have integrated Felix into Eclipse as a project, following >> >> >> >>instructions >> >> >> >> > here: >> >> >> http://felix.apache.org/site/integrating-felix-with-eclipse.html >> >> >> >> > >> >> >> >> > I have downloaded the following iPOJO bundle: >> >> >> >> > org.apache.felix.ipojo-1.8.2.jar >> >> >> >> > >> >> >> >> > I've launched Felix in the Eclipse console and I've installed >> >>the >> >> >> >> > org.apache.felix.ipojo-1.8.2.jar bundle and started it. >> >> >> >> > >> >> >> >> > I've created a test bundle using iPOJO called iPojoTest.jar >>and >> >> >>I've >> >> >> >> > installed it and started it in the OSGI console. >> >> >> >> > >> >> >> >> > I run bundles in the console and I get: >> >> >> >> > >> >> >> >> > g! bundles >> >> >> >> > >> >> >> >> > 0|Active | 0|org.apache.felix.framework (3.0.7) >> >> >> >> > >> >> >> >> > 1|Active | 1|org.apache.felix.bundlerepository >> >>(1.6.2) >> >> >> >> > >> >> >> >> > 2|Active | 1|org.apache.felix.gogo.command (0.6.1) >> >> >> >> > >> >> >> >> > 3|Active | 1|org.apache.felix.gogo.runtime (0.6.1) >> >> >> >> > >> >> >> >> > 4|Active | 1|org.apache.felix.gogo.shell (0.6.1) >> >> >> >> > >> >> >> >> > 12|Active | 1|iPojoTest (1.4.0) >> >> >> >> > >> >> >> >> > 13|Active | 1|org.apache.felix.ipojo (1.8.2) >> >> >> >> > >> >> >> >> > >> >> >> >> > So, the bundle seems to have started. >> >> >> >> > >> >> >> >> > But I don't get any console output from my sysoutsŠ >> >> >> >> > >> >> >> >> > Here are the start() and stop() methods: >> >> >> >> > >> >> >> >> > >> >> >> >> > @Validate >> >> >> >> > >> >> >> >> > public void start() throws IOException { >> >> >> >> > >> >> >> >> > System.out.println("I'm starting..."); >> >> >> >> > >> >> >> >> > try{ >> >> >> >> > >> >> >> >> > // Create file >> >> >> >> > >> >> >> >> > FileWriter fstream = new >> >> >> >> > FileWriter("/Users/mcook008/out.txt"); >> >> >> >> > >> >> >> >> > BufferedWriter out = new >> >>BufferedWriter(fstream); >> >> >> >> > >> >> >> >> > out.write("Hello Java"); >> >> >> >> > >> >> >> >> > //Close the output stream >> >> >> >> > >> >> >> >> > out.close(); >> >> >> >> > >> >> >> >> > }catch (Exception e){//Catch exception if >>any >> >> >> >> > >> >> >> >> > System.err.println("Error: " + >> >>e.getMessage()); >> >> >> >> > >> >> >> >> > } >> >> >> >> > >> >> >> >> > throw new IOException() ; >> >> >> >> > >> >> >> >> > } >> >> >> >> > >> >> >> >> > @Invalidate >> >> >> >> > >> >> >> >> > public void stop() { >> >> >> >> > >> >> >> >> > System.out.println("I'm leaving !"); >> >> >> >> > >> >> >> >> > } >> >> >> >> > >> >> >> >> > >> >> >> >> > >> >> >> >> > >> >> >> >> > I added in the file write to see if a file would be created. >> >>There >> >> >> >>is no >> >> >> >> > file created. So, while OSGi thinks the bundle is ACTIVE, >>the >> >> >>start >> >> >> >> method >> >> >> >> > appears never have to been called. >> >> >> >> > >> >> >> >> > >> >> >> >> > Can anyone tell me what I may have done wrong or provide a >>clue >> >>as >> >> >>to >> >> >> >> what >> >> >> >> > to look at to help diagnose the problem? >> >> >> >> > >> >> >> >> > >> >> >> >> > Thanks, >> >> >> >> > >> >> >> >> > Mike >> >> >> >> > >> >> >> >> > >> >> >> >> >> >> >> >> >> >> >> >> >> >>--------------------------------------------------------------------- >> >> >> 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]
