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• How to move to Java enterprise development after Python and Ruby?

  - by rdasxy

  I used to develop in Django/Python and Rails/Ruby (and before that C/C++ and C#), and I'm now at a job where we do enterprise Java development (Spring, Hibernate, RESTEasy, Maven, etc.) for web applications and web services. Coming from the Convention over Configuration world, what's the best way to get up to speed doing enterprise Java web services development? I know Java (the language) well, and I've written GUIs in Swing and basic JSP before, but nothing of the kind I'm doing now. Are there any recommended tutorials to get up to speed on popular Java enterprise development tutorials?

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• Good resources for JavaScript 2D game programming?

  - by DJCouchyCouch

  As an exercise, I've decided to look into JavaScript for game programming. While it's far from being the best language for that, I do like the idea that it's cross-platform and it's always available as a web page. So I thought I'd see what I could do with it. Specifically, I'd like to make a 2D tile-based game of some kind. Where can I find resources to do that? I'm sure this question's come up before, but I can't find any reference to it.

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• 3 Silverlight Free Demos

  We recently added a new demo and updated 2 of our more popular Silverlight demos to use Silverlight 4 RTW (from the beta and RC bits). The Silverlight.net samples web site has all of the samples, but here are direct links to each of the demos with a brief description of them and the features they showcase. These demos are great and parts of them are from contributions from several people at Microsoft including Karen Corby, Adam Kinney, Mark Rideout, Jesse Bishop and from me. I hope you like these...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• New Recipes for WebLogic 12.1.2

  - by JuergenKress

  New Recipes for Oracle WebLogic 12.1.2 Oracle ACE Director Frank Munz talks about the new content to be found in the newly published second edition of his book "Oracle WebLogic Server 12c: Distinctive Recipes: Architecture, Development and Administration," and about some of his favorite features in WebLogic 12.1.2. Watch the video here. WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: Frank Munz,WebLogic Recipes,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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• PHP and performance

  - by Naif

  I always hear that PHP is for medium and small websites whereas .NET and Java for enterprise applications. My question is about PHP. Why is PHP not a good option for enterprise web applications? Is it because if the web application becomes bigger then PHP will be slower as it is an interpreted language? I know that corporate world will choose .NET or J2EE because of the integration with their products and because of back end services, etc. However, if we just have PHP for building sites and web applications then how can we use it to perform well with big sites? In short, Is there a relationship between the performance of PHP and the size of the website? What are the factors that make PHP not appropriate option for big sites?

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• Should I use structure from a core library graphic toolkit in my domain?

  - by Laurent Bourgault-Roy

  In java (and many other programming language), there are often structure to deal with graphic element : Colour, Shape, etc. Those are most often in a UI toolkit and thus have a relatively strong coupling with UI element. Now, in the domain of my application, we often deal with colour, shape, etc, to display statistic information on an element. Right now all we do with it is display/save those element with little or no behaviour. Would it make sense to avoid "reinventing the wheel" and directly use the structures in java.awt.* or should I make my own element and avoid a coupling to this toolkit? Its not like those element are going away anytime soon (they are part of the core java library after all), but at the same time it feel weird to import java.awt.* server side. I have no problem using java.util.List everywhere. Should I feel different about those class? What would be the "recommended" practice in that case?

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• Using Mock for event listeners in unit-testing

  - by phtrivier

  I keep getting to test this kind of code (language irrelevant) : public class Foo() { public Foo(Dependency1 dep1) { this.dep1 = dep1; } public void setUpListeners() { this.dep1.addSomeEventListener(.... some listener code ...); } } Typically, you want to test what when the dependency fires the event, the class under tests reacts appropriately (in some situation, the only purpose of such classes is to wire lots of other components, that can be independently tested. So far, to test this, I always end up doing something like : creating a 'stub' that implements both a addXXXXListener, that simply stores the callback, and a fireXXXX, that simply calls any registered listener. This is a bit tedious since you have to create the mock with the right interface, but that can do use an introspective framework that can 'spy' on a method, and inject the real dependency in tests Is there a cleaner way to do this kind of things ?

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• CMS for Blog site

  - by Yau Leung

  I would like to create a blog site with features like Engadget. The editor can upload blog and albums while users can comment. I know it's even easier to use blogspot but it's blocked in China. I have tried Joomla before. It seems a bit slow even after removing most of the modules and the memcache plugin doesn't help much either. Is there any other option? Do I need other plugins to run WordPress as blog?

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• Java dev learning Python: what concepts do I need to wrap my head around?

  - by LRE

  I've run through a few tutorials and written some small projects. I'm right in the middle of a small project now infact. All is going well enough thanks in no small part to Uncle Google (who usually points me to Stackoverflow ;-) Several times in the last few days I've found myself wondering "what am I missing?" - I feel that I'm still thinking in Java as I write in Python. This question over at StackOverflow is full of tips about what resources to read up on for learning Python, but I still feel that I'm a Java dev with a dictionary (pun unintended) to translate into Python. What I really want to do is refactor my head to be able to write Pythonic Python instead of Java disguised as Python (not that I want to loose my Java skills). So, the crux of my question is: what concepts does a Java dev really need to learn to think Pythonic? This includes anything that needs to be un-learnt. ps: I consider language syntax to not be particularly relevant to this question.

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• Clock is Ticking for OBI 10g Supported Customers to move to OBI 11g

  - by Mike.Hallett(at)Oracle-BI&EPM

  Now is a perfect time for Partners to approach existing OBI 10g customers, to encourage and help them to upgrade to all the great new features in the current OBI v 11g; including the ability to go Mobile, to be in-memory on Exalytics, and to get tighter integration with Hyperion applications, Strategic Scorecards and Essbase. Oracle Lifetime Support Policy for Oracle BI Suite, version 10gR3, will end ‘normal’ support in July 2013. The final point release of Oracle Business Intelligence EE & Publisher 10gR3 was 10.1.3.4.x, which was generally available from July 2008 and will end “Premier Support” in July 2013.  From this time, customers may purchase “Extended Support” until July 2015, and from then “Sustaining Support”  indefinitely. For more information : Upgrade to Oracle Business Intelligence Enterprise Edition 11g, article on Technet Planning to Upgrade from Oracle BI 10g to BI 11g ?, at docs.oracle.com Oracle Business Intelligence Enterprise Edition 11g Oracle Lifetime Support Policy

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• What is the typical example of old school website design?

  - by Pierre 303

  I want to build a website for a retro thing that was popular in the mid 90s (beginning of the commercial internet). So I want use old designs that was very popular at that time. The first thing that comes to my mind was those "under construction" animated gifs. People often put animated gifs everywhere. But also those awful repeating backgrounds. So yes, I want my website to look exactly like in the mid nineties ;) (please suggest practical and usable features, I guess an Java Applet menu would not work today, or saying on the bottom that this website is optimized for Netscape 3) EDIT: for those that wants to see the result: Retrology

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• Looking for a very subtle unit testing example

  - by Stéphane Bruckert

  In the context of Continuous Integration, I need to teach unit testing to a 20-people audience of programmers. Everything will be all right, but I am still trying to find the perfect unit testing example. More than writing tests like a robot, I want to show that unit testing can help prevent very subtle errors. I am thinking of the following scenario to happen when doing a live TDD demo: the test cases would already be written, we would have to write methods together, most of us would naturally have forgotten to handle a specific case for a method, everyone would then be surprised, when seeing that all tests don't pass, the failing test would make us think more and realize that we forgot an important case. My question will probably finish as "too broad" or "not clear what you are asking", but we never know, one of you might have a great idea. Your answer can use Java and JUnit, though any other language will be fine since only the idea will matter.

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• Is agile about development or management?

  - by ashy_32bit

  On a debate over what Scrum is all about, I found that perhaps I totally misunderstood the agile thing. It appears to me that Scrum (which is certainly considered an Agile process) is all about managing features and sprints and roles and stuff with nothing to do with TDD, pair programming, CI, refactoring and other developer centric techniques and practices that I though (until now) are the heart of agile. Now I am facing a difficulty ! 1) Is Scrum agnostic to whether developers do agile practices? 2) Can you implement Scrum in a team that does not utilize automated tests? does not perform refactoring or does not adhere to the agile programming practices?

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• TestRail 1.1 Test Management Software released

  Gurock Software just released version 1.1 of its new test case management tool TestRail. TestRail is a web-based test case management software that helps software development teams and QA departments to efficiently manage, track and organize software testing efforts. TestRail 1.1 comes with various new features and improvements and introduces a complete role and permission system. Permissions and roles allow TestRail administrators to restrict user permissions, hide projects from users or even make...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Webinar Recording on Cross Platform Development with MonoTouch and Mono for Android

  - by Wallym

  The iPhone and Android are dominant in the marketplace. The two platforms currently have 85% of the smartphone marketplace and are continuing to grow that marketshare. Developers are being tasked with targeting these two platforms. In this session, we’ll take a high level look at how we can use c# and .NET knowledge to share code between iOS and and Android. We’ll look at linked files, using the Xamarin Mobile API, the challenges of running across platforms and frameworks, as well as other features of Visual Studio, Monotouch, MonoDevelop, and Mono for Android that allows us to write as much code that can run on both platforms.The following link is a recording on Cross Platform Development with MonoTouch and Mono for Android. I am guessing that the link only works in IE. That's out of my control.

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• How to configure Google Analytics experiments manually

  - by John

  I wish to run multivariate tests on an e-commerce site that run across all product pages. I will be setting and deciding the variations myself all I need to do is track the results in GA. I think may be possible (although only A/B testing is available via the GA UI): https://developers.google.com/analytics/devguides/platform/features/experiments#serving-framework EXTERNAL – You will choose variations, handle experiment optimization, and only report the chosen variation to Google Analytics. For example, this should be used by 3rd-party optimization platforms that want to integrate with Google Analytics for reporting purposes. In this case, the Google Analytics statistical engine will not run. However how do I configure this and push the data to GA in my page?

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• What framework & technology would you use to make a site like fancy.com [on hold]

  - by adriancdperu

  Im about to start a 3 month process to build something similar to fancy.com. What are your opinions about: best language + framework? (server - side) = I was thinking about LAMP and CakePHP important technological issues to consider when developing? MAU assumption = 1 million. Main features: Registration with Facebook Normal registration Search articles Like articles Post articles Comment on articles Suggest articles to friends via mail, Facebook, Twitter and about 3 or 4 more apis Ranking of articles as a cron job done every minute, many criterias, many rankings Follow users Datamining users to mail everyday with articles they have high probability of liking Operation tools for admins to add articles and close user accounts Mobile focus

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• Beggining OpenGL vs beggining DirectX and some question about the philosophical difference between them

  - by jokoon

  I'm begginning with Direct X at school, and my teacher said it was harder to begin with than OpenGL, but I read several things that in fact, Direct X was more advanced than OpenGL in terms of recent graphic cards features. Since I'm far from wanting to do top notch effects, which can already be implemented with existing engines and/or shaders, I wanted to know your opinion: Can OpenGL be considered like a more basic, KISS, hardware agnostic, graphic library to just do 3D with acceleration, and consider DirectX like a top notch, game-oriented graphic API that will always support the next-gen 3D chips ? Citation from wikipedia on http://en.wikipedia.org/wiki/Id_Tech_5 : John Carmack mentioned in his keynote at QuakeCon 2007 that the id Tech 5 engine will not be using the DirectX 10 API. I don't want to seem like I'm minding open source because Carmack does and because he is famous, it's just that android and iPhone are out there, and Direct X doesn't seems to me to be the necessary API to know, since Windows supports OpenGL, and since the 360 is just a console among other consoles.

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• OpenSource license with commerial-use exemptions for the owner

  - by dbkk

  I'm looking for an open source license which grants me additional privileges. Features: Anyone can freely modify, fork, use the code, as long as they make their source changes publicly available. They can use it in other open source projects, but not in closed-source projects. Only I and entities I specifically designate can use the code as part of a closed-source application. I am also exempt from the duty to publish the source code changes. I'm not trying to forbid the commercial use, just to allow myself more flexibility to use the code, while still contributing to open source. I don't want to burn myself by being legally forbidden from using the libraries I wrote in my commercial projects. Large companies use such dual licenses to maintain an open source project, while also selling the premium version. Which licenses of this type are available? What caveats or obstacles exist?

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• Get Ready For C# 4.0!

  Visual Studio 2010 is here! And of course this means that C# 4.0 is also here. Lets do a quick review of the new language features added in this release. Dynamic The dynamic keyword is a key feature of this release. It closes the gap between dynamic and statically-typed languages. Now you can create dynamic objects and let their types be determined at run time. With the addition of the System.Dynamic namespace, you can create expandable objects and advanced class wrappers, and you can provide interoperability...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• What skills does a web developer need to have/learn?

  - by Victor

  I've been I've asked around, and here's what I gathered so far in no particular order: Knowledge Web server management (IIS, Apache, etc.) Shell scripting Security (E.g. ethical hacking knowledge?) Regular Expression HTML and CSS HTTP Web programming language (PHP, Ruby, etc.) SQL (command based, not GUI, since most server environment uses terminal only) Javascript and library (jQuery) Versioning (SVN, Git) Unit and functional test Tools Build tools (Ant, NAnt, Maven) Debugging tools (Firebug, Fiddler) Mastering the above makes you a good web developer. Any comments?

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• what exactly is system programming?

  - by kentjh

  I have never understood what system programming meant. The usual definition given is "...doing something close to the Os or extending Os features...". Does using Windows API directly rather than some libraries to say do file i/o make it system programming? Was writing Android OS system programming? If I write something that would expose linux kernel through a console like app on Android am I doing system programming? If I am writing software to control a washing machine am I writing system programming? I am a beginner in programming and this is confusing me to no end. Please explain contrasting it with "application programming".

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• What is a good way to pause a preseed network installation temporarily?

  - by user183394

  I have been learning how to do PXE network install of Ubuntu 12.10 64bit. I would like to have a way to pause the installation at a certain point temporarily. This way, I can for example figure out why a particular preseed d-i statement is not working with Alt-F4, or test out a particular statement in busybox with Alt-F2. I do know that I can leave out the answer to an essential question, e.g. defining language but without country would trigger the debian-installer to prompt me for such info. But I am looking for more fine grained control of pausing. Is it possible?

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• One True Event Loop

  - by CyberShadow

  Simple programs that collect data from only one system need only one event loop. For example, Windows applications have the message loop, POSIX network programs usually have a select/epoll/etc. loop at their core, pure SDL games use SDL's event loop. But what if you need to collect events from several subsystems? Such as an SDL game which doesn't use SDL_net for networking. I can think of several solutions: Polling (ugh) Put each event loop in its own thread, and: Send messages to the main thread, which collects and processes the events, or Place the event-processing code of each thread in a critical section, so that the threads can wait for events asynchronously but process them synchronously Choose one subsystem for the main event loop, and pass events from other subsystems via that subsystem as custom messages (for example, the Windows message loop and custom messages, or a socket select() loop and passing events via a loopback connection). Option 2.1 is more interesting on platforms where message-passing is a well-developed threading primitive (e.g. in the D programming language), but 2.2 looks like the best option to me.

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• How to install the translations for trac

  - by julien

  I have installed trac on my server running Ubuntu 12.04. The problem is that the users cannot change the language in their preferences. Instead, the following message is displayed: Translations are currently unavailable. Trac has been localized to more than a dozen of languages but in order to be able to use them, the Babel package needs to be present when installing Trac. See TracInstall for details. The installation has been done using the repositories of Ubuntu, but I could not find any package related to trac and babel, nor trac and anything related to internationalization. How can I install the translations for trac?

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