I'm learning how to use OSGi in Eclipse for work and it looks like a very powerful and interesting tool! However, the online tutorials haven't been updated in a while (Java 8!). Also, I read some scathing blog posts about the incompatibility between OSGi and Class Loaders, so it seems OSGi experts are not fans of some recent Java updates.
I'm trying to understand a more the context of these issues, since I'll be working with OSGi for some time and want to be intentional/strategic about which features I'll use or not. Does someone have any insights?
Thanks!
Related
I've just discovered TideSDK and it seems to be a really great tool, but I have one requirement : I need to use some native code (for managing USB devices for example) and so I need communication between this native code and the web app, is such a thing possible with TideSDK?
Yes, working with native code in TideSDK is possible. Our SDK is modular and we have been reorganizing the code structurally to make it easier to do the sort of thing you want. At a modular level, you will be contending with support for multiple platforms typically.
A module should extend to all platforms that you are supporting. We expect to have documentation to help developers (familiar with native code) to better understand the SDK. This should include some module boilerplate to help you get started. At this point, we have yet to prepare this more detailed documentation. We have much to do and sometimes progress seems slow despite all the great efforts going into TideSDK.
TideSDK is a large and complex SDK but don't let this frighten you off. It is extensible and we will be shining light on this soon with module development guides. It would be cool to talk more on IRC about this with you so feel free to drop by at any time. Perhaps the functionality you are speaking of is of general use ie. to extend the APIs for everyone.
There are possibilities to work together with the core developers of TideSDK on modules and to contribute to this great open source project. Other possibilities also include sponsoring module development if this something that you need more immediately for a project. Hope this helps.
Is there any tool to convert existing JavaFX 1.x applications to JavaFX 2.x Java code?
No such tool currently exists publicly and it is unlikely that one will be created.
Oracle did create a prototype tool which was used in internal Oracle development, but they decided not to continue development on it.
Quotes from the JavaFX project lead Richard Bair (from the forum threads linked below):
Richard: I'm sorry to say we have no tool to help with the migration. Our
experience from migrating the JavaFX Library and samples is that there
wasn't really an easy solution -- even the migration assistant that
was written was very incomplete. Some folks found it very useful, but
I just did it by hand.
PDVieira: Any chance you could send me the FxTranslator helper you've
created?
Richard: Wish I could, but unfortunately we cannot send it along
(actually, I don't even have the code on hand, didn't write it (Eamonn
did) and it would need to get legal approve to open source it, and it
probably doesn't even compile or work anymore because the platform has
change significantly since last December).
You can refer to these forum threads which discuss this further:
https://forums.oracle.com/forums/thread.jspa?messageID=9967190
https://forums.oracle.com/forums/thread.jspa?messageID=10064115
I have downloaded OpenMHeg simulator..how to develop an application in mheg?what eclipse version i need to use?where do i get the sdk for mheg?
I haven't tried yet. but I think it's worth trying. Someone said that the BBC's implementation of MHEG5 is open sourced
It can be downloaded from mhegplus on sourceforge
There is no MHEG-5 SDK. There is some limited documentation available online, and a few discussions of the type hierarchy.
Since MHEG-5 has no support for user defined types and the API is completely provided by the implementation (in various states of brokenness), you only need an editor and an understanding of the application model to write applications.
I wrote an introduction to MHEGPlus a while ago but didn't go into any advanced application building techniques. There are a few more examples out there if you look for them.
Just a simple question:
Would you prefer IntelliJ? If so, what are the Pro- and Cons?
Thx
I'd prefer IntelliJ for any Java project. I'll also point out that ReSharper is a Visual Studio plug-in that provides a lot of the same niceties for .NET. It's also written by JetBrains.
Pros:
Smartest IDE I know. Everything works together. It's not a Frankenstein monster stitched together from disparate plug-ins that don't know about each other.
Best Spring support.
Keeps getting better with every release.
Great integration with SVN, databases, Java EE app servers.
Local and remote debugging with Java EE app servers.
Cons:
Not free. If that puts you off, IntelliJ isn't for you.
Swing UI support isn't the best, but I'm not much of a Swing/desktop developer.
Not Eclipse. If you're a dyed in the wool Eclipse lover you may not like IntelliJ.
I used Eclipse for many years. I liked it and felt grateful to have something so good when my employer wouldn't lay out any money for tools.
Then I changed jobs and was given IntelliJ. I've never gone back. I buy a personal license every year with my own money so I can use it at home and at work. It's an essential tool for me.
In the software projects that I participate developers use either Eclipse or IntelliJ, simply because they are used to either one of them. No one of my collegues switched the IDE yet, so there does not seem to be a "killer application/feature".
I heard that NetBeans is better than Eclipse, especially NetBeans is supposed to be more stable with regard to plugins - this is the only aspect of Eclipse that really troubles me: You either do not find a plugin that you need (I'm still looking for a Maven plugin that actually works) or installing one plugin breaks another.
I'm starting a new project using Flex3 for a reasonably intricate UI getting its data from a collection of RESTful web services. I wondering what experiences others have had in structuring a moderately complex Flex project. The issues I'm thinking about include:
I want to use our FlexBuilder licenses for visual editing of layouts and debugging code on Eclipse
automated build script so that we can use a CI server
testing strategies, particularly automatable unit tests
cross-platform Linux and Windows development environments (yes, I know the Linux version of FlexBuilder doesn't do visual editing, but everything else should ideally run cross-platform)
dependency management for at least the Java code (are there library dependency managers for Flex?)
I've just burned a day trying and failing to get a maven2/flex/jetty build setup working smoothly (based on Jeff Maury's tutorial). I'm not dead-against using Maven as we go forwards, but I'm sure there must be a less painful route. The main issue I had (other than maven documentation being patchy) is that maven's "single artifact per build" rule means that you have to jump through a lot of hoops with a complex build, and I'm not enough of a maven initiate not to trip over the hoops and fall on my face!
Would Ant and Ivy be a better option than maven2? What other choices are there?
I don't know Flex development but I know CI so I'll comment on that aspect.
I work on CruiseControl, so that's what I use (when not being paid to setup something else). And there are blog entries that describe setting up Flex projects under CC for both Windows and Linux. CC has been around for a long time so there is a large community of users and lots of 3rd party tools that work with it.
But other people are likely to recommend Hudson and it would be hard to argue against them. Hudson is very easy to get up and running and has a nice web based UI. This project is very active, has lots of fans and lots of buzz and has matured very rapidly. I don't have anything bad to say about it. This blog entry describes running acceptance tests under Hudson.
I don't know enough about Maven to offer advice there but I'm working with Ivy at a client right now and I really like it. We've got a combination of Java and C++ code and we're able to get Ivy to do what we need.
Well we are using maven. With some help of a lot of different web sties I have an enterprise application being built using maven.
This article via adobe has really help a lot.
http://www.adobe.com/devnet/flex/articles/fullstack_pt1.html
http://www.adobe.com/devnet/flex/articles/fullstack_pt2.html
http://www.adobe.com/devnet/flex/articles/fullstack_pt3.html
You really need a common configuration project that will be shared between both flex and java, and possibly your c++ code. This article explains how to set that all up.
Down side, if you are not knowledgeable with maven there is a slight learning curve.