It makes sense, and I agree with you, sometime users are lost to find the right solution. Karaf examples show a "panel" of what you can do, in different ways.
I would propose a full application, more "directive" in the approach used, a bit as we did in Decanter (adopting SCR everywhere, etc). A full stack application running in Karaf (as example) would be great, probably not as part of the Karaf examples, but more a karaf-tutorial or karaf-boot isolated repo (not necessary at Apache). Regards JB On 20/09/2019 09:55, Christian Schneider wrote: > Don't get me wrong. The karaf examples are great and do a good job in > showing all the features karaf has. > The big issue though is that the examples show a lot of ways of doing the > same thing. This is the right choice when it is about showing the features > of karaf. > It is not good as an introduction for how to create a streamlined > application as it offers too many choices. > > What I have in mind is a very opinionated and structured documentation that > concentrates on one solution for each of the parts of an application. It > also has to show how it all fits together. This is very different from the > goals of the karaf examples. > > I remember well the discussion we had about the karaf examples and about > how opinionated they should be. I think you were right about being not very > opinionated for karaf examples. It fits the idea of the platform. > > Christian > > > Am Do., 19. Sept. 2019 um 15:43 Uhr schrieb Julian Feinauer < > j.feina...@pragmaticminds.de>: > >> Thanks Christian, I will check out your stuff later on. Ideally I would >> love to have a book about karaf and some osgi basics and ds... But I guess >> that's a lot of work. >> >> So I think tutorials and examples are a good pragmatic compromise : ) >> ________________________________ >> From: Jean-Baptiste Onofré <j...@nanthrax.net> >> Sent: Thursday, September 19, 2019 8:15:08 AM >> To: dev@karaf.apache.org <dev@karaf.apache.org> >> Subject: Re: Hello World! >> >> Hi Christian, >> >> I think Karaf examples are good enough to start. They are maybe too >> simple but provide "classic" use cases (rest, service, jpa, etc). >> >> I agree we can do more, and we are working on it. It's something I >> discuss with some guys at ApacheCon last week. >> I will come with concrete proposal soon ;) >> >> Regards >> JB >> >> >> On 19/09/2019 15:02, Christian Schneider wrote: >>> The problem with OSGi docs is that most of the material is quite old. >>> Much of it does not apply to modern OSGi development anymore. >>> >>> Another issue is that especially for dependency injection there are >> quite a >>> few alternatives. Every of these come with their own pros and cons. >>> As a beginner it is difficult to understand and decide how to start. >>> >>> Karaf is a great way to start playing with OSGi as many things are >> readily >>> available and the shell and webconsole allow some nice insight into the >>> system. What karaf does not provide though is a good introduction into >>> OSGi. I tried to do so with my tutorials but they are more like explained >>> examples. >>> >>> I planned to do a longer introduction around how to build a typical >>> application based on best practices .. but it is a lot of work and I >> never >>> really took on the task. >>> >>> You might be interested in my recent talk about OSGi best practices. >>> Unfortunately in 30 minutes I was not able to really explain how to build >>> an application but maybe the example helps a bit. >>> https://adapt.to/2019/en/schedule/osgi-best-practices.html >>> The most interesting part there is maybe how to build bundles without xml >>> config. >>> The new annotations that combine requirements and configs are also very >>> interesting. >>> Both of these are not yet covered by much material on the web. >>> In the example there is a small application with an angular front end >> and a >>> jax-rs backend that can be easily installed in karaf. >>> >>> Christian >>> >>> >>> Am Mi., 18. Sept. 2019 um 06:45 Uhr schrieb Julian Feinauer < >>> j.feina...@pragmaticminds.de>: >>> >>>> Hi, >>>> >>>> it was not so much karaf (I kind of liked it from the start) it was >> rather >>>> OSGi. >>>> We come from spring and when I looked through all the osgi material lots >>>> of it seemed strange and confusing like Aries, Blueprint, DS, enRoute, >> ... . >>>> Serge helped me a lot with sorting the things in my head and getting all >>>> clear (also with bundle vs. feature vs. feature-repo) and DS stuff and >> lots >>>> more. >>>> So I think Karaf is already doing an excellent job its rather the OSGi >>>> world that is damn confusing and one thing that probably could help is a >>>> small OSGi introduction or something. >>>> >>>> I hope that helps! >>>> Julian >>>> >>>> Am 16.09.19, 11:47 schrieb "Jean-Baptiste Onofré" <j...@nanthrax.net>: >>>> >>>> By the way, Julian, I'm curious. Why did you consider Karaf "hard >> for >>>> you to adopt" ? It's to understand what we can improve (maybe >>>> message/website, example, whatever) in the project to change that ! >>>> >>>> Thanks ! >>>> Regards >>>> JB >>>> >>>> On 16/09/2019 18:21, Julian Feinauer wrote: >>>> > Hi everybody, >>>> > >>>> > my name is Julian and as I’m new on this list, I just wanted to >>>> shortly introduce myself. I’m a contributor to some Apache projects >> (PLC4X, >>>> IoTDB, Calcite) and I met some karaf folks at the ApacheCon in Las >> Vegas (I >>>> was the guy hanging around introducing JB and Serge). >>>> > I have Karaf on my radar for quite some time but always considered >>>> it to hard for us to adopt. >>>> > >>>> > But, as Serge gave me an awesome hands on introduction yesterday, >> I >>>> feel like we should really start to work with it and see how it goes. >> So, >>>> expect some mails from me here or on user@. >>>> > >>>> > Best >>>> > Julian >>>> > >>>> >>>> -- >>>> Jean-Baptiste Onofré >>>> jbono...@apache.org >>>> http://blog.nanthrax.net >>>> Talend - http://www.talend.com >>>> >>>> >>>> >>> >> >> -- >> Jean-Baptiste Onofré >> jbono...@apache.org >> http://blog.nanthrax.net >> Talend - http://www.talend.com >> > > -- Jean-Baptiste Onofré jbono...@apache.org http://blog.nanthrax.net Talend - http://www.talend.com
