Re: [osgi-dev] Loading dynamically generated classes
Justin, Why does this design require that these classes be exported? As long as the bundle registering them as services has access to the dynamic classes, no other bundle needs to. That is correct, and the recipient of a proxy service objects have no legitimate interest in its implementation; it should be happy that it implements the interface they want and has whatever properties were specified in the filter (if any). But before we can create any proxy instance, the class needs to exist which means that some ClassLoader somewhere has to call defineClass(). Or am I missing something? Alternatively, you could register a special Classloader as a service which could be used to load them. Hm, that doesn't smell too good (creating custom ClassLoaders in an OSGi system), but it might work. Need to examine that more closely. Thx Chris Justin On Sun, Mar 18, 2012 at 5:07 PM, chris.g...@k-embedded-java.com wrote: Hello all, I am working on a design which involves generating new classes at runtime, so that afterwards I can create one or more instances which will be registered as services. Generating the class files (or byte arrays) goes fine, introducing them into the environment is less obvious; I need to somehow persuade some bundle classloader to read in my hand-crafted bytes and pass them to defineClass(). The best I have been able to come up with so far is to wrap up the generated class in a bundle fragment and ask the framework to install this - which seems a little baroque, so I am just wondering if there is some API I've missed which would do this more naturally? If I wanted to modify the original class I could of course use weaving hooks, but I would really prefer to create a new class. Thanks, Chris ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev
Re: [osgi-dev] Loading dynamically generated classes
The bundle that registers the service could create this custom class loader with its bundle class loader as its parent, and with appropriate imports for that bundle the custom class loader would be able to resolve external references in your bag of class bytes. This would include the import of the package that holds your service interface. The life cycle of the class loader and the service registration would be tied to the life cycle of this implementation bundle. In this way your creation of a custom class loader is simply an implementation detail of your bundle. If you're going to be materializing a bag of bytes into a class, you're going to need a class loader *somewhere*, so you're not *adding* any additional smell. ;-) /djk On Mar 19, 2012, at 5:02 AM, chris.g...@k-embedded-java.com wrote: Hm, that doesn't smell too good (creating custom ClassLoaders in an OSGi system), but it might work. Need to examine that more closely. ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev
[osgi-dev] run JavaFx and Fxml in OSGI
hello, I'm working to run javafx in the Apache felix osgi runtime, using Bundle-NativeCode and lots of Import/Export-Package I make an javafx bundle, that work properly to run javaFx interfaces write in plain java... but, when I try to load an fxml file I'm getting this issue: javafx.fxml.LoadException: BorderPane is not a valid type. at javafx.fxml.FXMLLoader.createElement(Unknown Source) at javafx.fxml.FXMLLoader.processStartElement(Unknown Source) at javafx.fxml.FXMLLoader.load(Unknown Source) the exception give me no more information... I think, It's occuring some problem to find BorderPane class by It's name... ps.: the same fxml file run fine outside the osgi runtime. best regards. -- Filipe Portes - @filipeportes Java Architec - Senior Java EE/Web/Flex Developer JUGLeader Gojava http://www.gojava.org/ - @gojava ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev
Re: [osgi-dev] run JavaFx and Fxml in OSGI
I'm already saw this post, I can't understand what he is doing, there's no doc and reading the code I just found a lot of eclipse rcp specific code. On Mon, Mar 19, 2012 at 11:14 AM, Ferry Huberts maili...@hupie.com wrote: you might want to checkout Tom Schindl's blog: http://tomsondev.bestsolution.at/2012/03/11/javafx2-and-osgi-deployment-model/ On 19-03-12 15:07, Filipe Portes wrote: hello, I'm working to run javafx in the Apache felix osgi runtime, using Bundle-NativeCode and lots of Import/Export-Package I make an javafx bundle, that work properly to run javaFx interfaces write in plain java... but, when I try to load an fxml file I'm getting this issue: javafx.fxml.LoadException: BorderPane is not a valid type. at javafx.fxml.FXMLLoader.createElement(Unknown Source) at javafx.fxml.FXMLLoader.processStartElement(Unknown Source) at javafx.fxml.FXMLLoader.load(Unknown Source) the exception give me no more information... I think, It's occuring some problem to find BorderPane class by It's name... ps.: the same fxml file run fine outside the osgi runtime. best regards. -- Filipe Portes - @filipeportes Java Architec - Senior Java EE/Web/Flex Developer JUGLeader Gojava http://www.gojava.org/ - @gojava ___ OSGi Developer Mail listosgi-...@mail.osgi.orghttps://mail.osgi.org/mailman/listinfo/osgi-dev -- Ferry Huberts -- Filipe Portes - @filipeportes Java Architec - Senior Java EE/Web/Flex Developer JUGLeader Gojava http://www.gojava.org/ - @gojava ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev
Re: [osgi-dev] run JavaFx and Fxml in OSGI
you might want to checkout Tom Schindl's blog: http://tomsondev.bestsolution.at/2012/03/11/javafx2-and-osgi-deployment-model/ On 19-03-12 15:07, Filipe Portes wrote: hello, I'm working to run javafx in the Apache felix osgi runtime, using Bundle-NativeCode and lots of Import/Export-Package I make an javafx bundle, that work properly to run javaFx interfaces write in plain java... but, when I try to load an fxml file I'm getting this issue: |javafx.fxml.LoadException: BorderPane is not a valid type. at javafx.fxml.FXMLLoader.createElement(Unknown Source) at javafx.fxml.FXMLLoader.processStartElement(Unknown Source) at javafx.fxml.FXMLLoader.load(Unknown Source) | the exception give me no more information... I think, It's occuring some problem to find BorderPane class by It's name... ps.: the same fxml file run fine outside the osgi runtime. best regards. -- Filipe Portes - @filipeportes Java Architec - Senior Java EE/Web/Flex Developer JUGLeader Gojava http://www.gojava.org/ - @gojava ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev -- Ferry Huberts ___ OSGi Developer Mail List osgi-dev@mail.osgi.org https://mail.osgi.org/mailman/listinfo/osgi-dev
