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• WebLogic Server Provisioning and Patching with Enterprise Manager Cloud Control 12c Now Available

  - by JuergenKress

  For access to the Oracle demo systems please visit OPN and talk to your Partner Expert. SOA Suite and BPM Suite runs on WebLogic! We are pleased to announce the availability of a WebLogic Server Management demo that showcases some of the key provisioning and patching capabilities of WebLogic Server Management Pack Enterprise Edition (EE). To learn more about these features - as well as other features of the pack - please visit the pack's saleskit page. Demo Highlights The demo showcases the following capabilities: Patching Oracle WebLogic Servers Standardizing WebLogic Server Patch Rollouts Creating a WebLogic Domain Provisioning Profile Cloning a WebLogic Domain from a Provisioning Profile Deploying a Java EE Application Scaling Out an Oracle WebLogic Cluster Demo Instructions Go to the DSS website for Oracle Partners. On the Standard Demo Launchpad page, under the “Software Lifecycle Automation” section, click on the link “EM Cloud Control 12c WLS Provisioning and Patching” (tagged as “NEW”). Specific demo launchpad page contains a link to the detailed demo script with instructions on how to show the demo. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: WebLogic,Enterprise Manager,EM12c,SOA Community,Oracle SOA,Oracle BPM,BPM Community,OPN,Jürgen Kress

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• Export SSL Cert from IIS and import into GlassFish keystore

  - by Tim H

  What I need: I have an existing SSL certificate installed on IIS 6. On the same machine, I have GlassFish installed and would like to share the same certificate since they both share the same hostname, and they use different ports: IIS uses 443 and GlassFish uses 8181. Why I need it: Reuse existing SSL certs from IIS to GlassFish. I imagine that this is possible. I am able to install an SSL cert into GlassFish's keystore, and then import the same exact cert into IIS. I just want to go the other way - imagine having an SSL cert on IIS being used for months, and now I want to enable SSL on GlassFish. What I have done: Created a keystore with an alias: server.hostname.com Imported intermediate CA certs associated with the existing SSL Cert Imported the existing SSL cert with the same alias: server.hostname.com, but the keytool won’t allow this, as it is not associated: keytool error: java.lang.Exception: Public keys in reply and keystore don't match Why? Using a different alias causes the cert to not be trusted in the CA chain.

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• Test a simple multi-player (upto four players) Android game in single developer machine

  - by Kush

  I'm working on a multi-player Android game (very simple it is that it doesn't have any game-engine used). The game is based on Java Socket. Four devices will connect the game server and a new thread will manage their session. The game server will server many such sessions (having 4 players each). What I'm worried about is the testing of this game. I know it is possible to run multiple android emulators, but my development laptop is very limited in capabilities (3 GB RAM, 2 Ghz Intel Core2Duo and on-board Graphics). And I'm already using Ubuntu to develop the game so that I have more user memory available than I'd have with Windows. Hence, the laptop will burn-to-death on running 4 emulator instances. I don't have access to any android device, neither I have another machine with higher configuration. And I still have to develop and test this game. P.S. : I'm a CS student, and currently don't work anywhere, and this game is college project, so if there are any paid solutions, I cannot afford it. What can I do to test the app seamlessly? ability to test even only 4 clients (i.e. only 1 session) would suffice, its alright if I can't simulate real environment with some 10-20 active game sessions (having 4 players each).

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• WebLogic Application Server: free for developers! by Bruno Borges

  - by JuergenKress

  Great news! Oracle WebLogic Server is now free for developers! What does this mean for you? That you as a developer are permitted to: "[...] deploy the programs only on your single developer desktop computer (of any type, including physical, virtual or remote virtual), to be used and accessed by only (1) named developer." But the most interesting part of the license change is this one: "You may continue to develop, test, prototype and demonstrate your application with the programs under this license after you have deployed the application for any internal data processing, commercial or production purposes" (Read the full license agreement here). If you want to take advantage of this licensing change and start developing Java EE applications with the #1 Application Server in the world, read now the previous post, How To Install WebLogic Zip on Linux! 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. BlogTwitterLinkedInMixForumWiki Technorati Tags: WebLogic free,WebLogic for developers,WebLogic license,WebLogic Community,Oracle,OPN,Jürgen Kress

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• HTML5 Development for Dummies

  - by Geertjan

  What's HTML5 all about and what does it actually mean, concretely, to develop HTML5 applications? NetBeans IDE 7.3 provides something called "Project Easel", which is a bundling of HTML5-related tools into a coherent toolset. Within a matter of hours, you'll know everything you need to know about what all this is about if you follow the steps below.  Get A Solid Overview. Start by viewing this screencast from JavaOne 2012 (click the media link on the right side once you've clicked the link below, a downloadable MP4 file is also available there):https://oracleus.activeevents.com/connect/sessionDetail.ww?SESSION_ID=4038That is an awesome way to get you in the right mindframe for what HTML5 is and how it fits into the programming world, together with a very cool and entertaining demo, presented by JB Brock. He starts with about three slides and then does a super awesome demo that puts you into the picture very quickly. Understand How HTML5 Relates To Java EE. Now here's a very cool follow up to the above, again demo-driven (click the media links on the right side once you've clicked the link below):https://oracleus.activeevents.com/connect/sessionDetail.ww?SESSION_ID=4737David Konecny takes the Affable Bean project created via the NetBeans E-commerce Tutorial and creates an HTML5 front end for it! I.e., you are shown how HTML5 can provide a different front end, as an alternative to JSF. Why would you do that? Well, that's explained in David's session, as well as in JB Brock's session, i.e., choose the right technology for the right situation. Sometimes HTML5 might make sense, other times JSF might make sense. Follow The NetBeans Screencasts. To revise and firm up everything you've learned from the above two JavaOne sessions, watch two screencasts by Ken Ganfield, part 1, Getting Started with HTML5 and part 2, Working with JavaScript in HTML5 Applications. In particular, you'll learn how NetBeans IDE provides tools to thoroughly cover the needs of HTML5 developers. Having taken the above three steps, you now have a thorough background, together with an understanding of the tools and procedures needed for creating your own HTML5 applications.

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• CodePlex Daily Summary for Saturday, August 02, 2014

  CodePlex Daily Summary for Saturday, August 02, 2014Popular ReleasesRecaptcha for .NET: Recaptcha for .NET v1.5.1: Added support for HTTPS. Signed the assemblies.PowerShell App Deployment Toolkit: PowerShell App Deployment Toolkit v3.1.5: *Added Send-Keys function to send a sequence of keys to an application window (Thanks to mmashwani) *Added 3 optimization/stability improvements to Execute-Process following MS best practice (Thanks to mmashwani) *Fixed issue where Execute-MSI did not use value from XML file for uninstall but instead ran all uninstalls silently by default *Fixed error on 1641 exit code (should be a success like 3010) *Fixed issue with error handling in Invoke-SCCMTask *Fixed issue with deferral dates where th...AutoUpdater.NET : Auto update library for VB.NET and C# Developer: AutoUpdater.NET 1.3: Fixed problem in DownloadUpdateDialog where download continues even if you close the dialog. Added support for new url field for 64 bit application setup. AutoUpdater.NET will decide which download url to use by looking at the value of IntPtr.Size. Added German translation provided by Rene Kannegiesser. Now developer can handle update logic herself using event suggested by ricorx7. Added italian translation provided by Gianluca Mariani. Fixed bug that prevents Application from exiti...SEToolbox: SEToolbox 01.041.012 Release 1: Added voxel material textures to read in with mods. Fixed missing texture replacements for mods. Fixed rounding issue in raytrace code. Fixed repair issue with corrupt checkpoint file. Fixed issue with updated SE binaries 01.041.012 using new container configuration.Magick.NET: Magick.NET 6.8.9.601: Magick.NET linked with ImageMagick 6.8.9.6 Breaking changes: - Changed arguments for the Map method of MagickImage. - QuantizeSettings uses Riemersma by default.SharePoint Real Time Log Viewer: SharePoint Real Time Log Viewer - Source: Source codeModern Audio Tagger: Modern Audio Tagger 1.0.0.0: Modern Audio Tagger is bornQuickMon: Version 3.20: Added a 'Directory Services Query' collector agent. This collector allows for querying Active Directory using simple DirectorySearcher queries.Grunndatakvalitet: Initial working: Show Altinn metadata in Excel. To get a live list you need to run the sql script on a server and update the connection string in ExcelMultiple Threads TCP Server: Project: this Project is based on VS 2013, .net freamwork 4.0, you can open it by vs 2010 or laterAccesorios de sitios Torrent en Español para Synology Download Station: Pack de Torrents en Español 6.0.0: Agregado los módulos de DivXTotal, el módulo de búsqueda depende del de alojamiento para bajar las series Utiliza el rss: http://www.divxtotal.com/rss.php DbEntry.Net (Leafing Framework): DbEntry.Net 4.2: DbEntry.Net is a lightweight Object Relational Mapping (ORM) database access compnent for .Net 4.0+. It has clearly and easily programing interface for ORM and sql directly, and supoorted Access, Sql Server, MySql, SQLite, Firebird, PostgreSQL and Oracle. It also provide a Ruby On Rails style MVC framework. Asp.Net DataSource and a simple IoC. DbEntry.Net.v4.2.Setup.zip include the setup package. DbEntry.Net.v4.2.Src.zip include source files and unit tests. DbEntry.Net.v4.2.Samples.zip ...Azure Storage Explorer: Azure Storage Explorer 6 Preview 1: Welcome to Azure Storage Explorer 6 Preview 1 This is the first release of the latest Azure Storage Explorer, code-named Phoenix. What's New?Here are some important things to know about version 6: Open Source Now being run as a full open source project. Full source code on CodePlex. Collaboration encouraged! Updated Code Base Brand-new code base (WPF/C#/.NET 4.5) Visual Studio 2013 solution (previously VS2010) Uses the Task Parallel Library (TPL) for asynchronous background operat...Wsus Package Publisher: release v1.3.1407.29: Updated WPP to recognize the very latest console version. Some files was missing into the latest release of WPP which lead to crash when trying to make a custom update. Add a workaround to avoid clipboard modification when double-clicking on a label when creating a custom update. Add the ability to publish detectoids. (This feature is still in a BETA phase. Packages relying on these detectoids to determine which computers need to be updated, may apply to all computers).VG-Ripper & PG-Ripper: PG-Ripper 1.4.32: changes NEW: Added Support for 'ImgMega.com' links NEW: Added Support for 'ImgCandy.net' links NEW: Added Support for 'ImgPit.com' links NEW: Added Support for 'Img.yt' links FIXED: 'Radikal.ru' links FIXED: 'ImageTeam.org' links FIXED: 'ImgSee.com' links FIXED: 'Img.yt' linksAsp.Net MVC-4,Entity Framework and JQGrid Demo with Todo List WebApplication: Asp.Net MVC-4,Entity Framework and JQGrid Demo: Asp.Net MVC-4,Entity Framework and JQGrid Demo with simple Todo List WebApplication, Overview TodoList is a simple web application to create, store and modify Todo tasks to be maintained by the users, which comprises of following fields to the user (Task Name, Task Description, Severity, Target Date, Task Status). TodoList web application is created using MVC - 4 architecture, code-first Entity Framework (ORM) and Jqgrid for displaying the data.Waterfox: Waterfox 31.0 Portable: New features in Waterfox 31.0: Added support for Unicode 7.0 Experimental support for WebCL New features in Firefox 31.0:New Add the search field to the new tab page Support of Prefer:Safe http header for parental control mozilla::pkix as default certificate verifier Block malware from downloaded files Block malware from downloaded files audio/video .ogg and .pdf files handled by Firefox if no application specified Changed Removal of the CAPS infrastructure for specifying site-sp...SuperSocket, an extensible socket server framework: SuperSocket 1.6.3: The changes below are included in this release: fixed an exception when collect a server's status but it has been stopped fixed a bug that can cause an exception in case of sending data when the connection dropped already fixed the log4net missing issue for a QuickStart project fixed a warning in a QuickStart projectYnote Classic: Ynote Classic 2.8.5 Beta: Several Changes - Multiple Carets and Multiple Selections - Improved Startup Time - Improved Syntax Highlighting - Search Improvements - Shell Command - Improved StabilityTEBookConverter: 1.2: Fixed: Could not start convertion in some cases Fixed: Progress show during convertion was truncated Fixed: Stopping convertion didn't reset program titleNew ProjectsCoder Camps Troop 64 7-28: Place for group projectsEasyMR: ????EasyMR???????????????????????????????，?????，????，????，????????，??????????????????????，????????????。??????Hadoop?????????，EasyMR???????，??????????????????。FlexGraph: A simple chart control for Windows delivered in form of a function DLL. Tested in C++ (MFC, QT), C# and VB.Net.Grunndatakvalitet: Project is meant to open up the Altinn national data hub for Access from other systems and eg self-service like ExcelKinect Avateering V2 SDK migration: Kinect V2 (new version with XBOX1) SDK Avatar Avateering sample migration from version 1.8SDK. lqwe: just devlzsoft-cdn: this is a projectMin Heap: MinHeap project provides a MinHeap implementation in C# for use in Dijkstra's algorithm for computing shortest path distances for non-negative edge lengths.Modern Audio Tagger: Modern Audio Tagger is a powerful, easy and extreme fast tool to reorganize your music libraryMultiple Threads TCP Server: A multi-threaded tcp server. Using a queue with multiple threads to handle large numbers of client requests.newTeamProject1: Game Minesweeper on Console ApplicationO(1): Scale-able partitioned pure .NET Property Graph Database intended to handle large complex graphs and provide high performance OLTP property graph capabilities.Orchard Single Page Application Theme: Orchard Single Page Application ( SPA ) ThemePersonal Assistance Suite (PAS): This C# project aims to set up a modular platform for private use. Microsoft Prism Library 5.0 for WPF is used to implement this modularity.PokitDok Platform API Client for C#: The PokitDok API allows you to perform X12 transactions, find healthcare providers, and get information on health care procedure pricing. REST, JSON, Oauth2.Powershell DSC Resource - cXML: Powershell DSC Resource Module for managing XML element in a text file.Powershell Uninstall Java: Identifies and uninstalls Java software from the local machine using WMI. The query to locate the installed software interogates the WIN32_Products claSharePoint Real Time Log Viewer: SharePoint Real Time Log Viewer is a winform application that allows you to view the logs generated by SharePoint.sqldataexporter: this is a projectVAK: we are trying to create an application that will be a place people can discuss IT related topics and also try to integrate lync 2013Windows Phone 8 DropBox API: Windows Phone REST API for DropBoxYet Another Steam Mover (YASM): Yet Another Steam Mover (YASM) is a Microsoft.NET Windows Forms application for moving large digital games across different volumes.

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• Developing an internet-enabled application as a Kiosk on Windows 7

  - by maple_shaft

  I am finalizing development of a desktop Java application that communicates with an outside web server, and now I need to start seriously considering deployment. This application will run on a large touchscreen all-in-one workstation running Windows 7. It will be located in a public-area and thus must be LOCKED-DOWN Hanibal Lecter style. Early in the project nobody really concerned themselves with this fact just assuming that we can buy some magical software for Windows 7 that will automatically take care of all this, however I am finding now that this looks to be a LOT more complicated than my manager ever thought. I need to: - Lock down the standard hot-keys (ALT+TAB, ALT+CTRL+DEL, etc...) Prevent the user from opening ANY programs other than the kiosk application and its spawned executables Prevent the user from closing the application Start the kiosk application on startup (this can be done without kiosk software) Auto-login to Windows on reboot (Windows Updates, power failure, bratty kid pressing the power button, etc...) Administrator passcode escape sequence for routine maintenance by desktop support professionals. To my dismay I am having a really hard time finding software that contains the whole package and am finding numerous swaths of competing information on the best way to do this. I am not necessarily looking for free or open source software and am willing to pay for software that can help me achieve this. Have any of you ever wrote kiosk software before and if so what approaches have you taken to do this?

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• When are Getters and Setters Justified

  - by Winston Ewert

  Getters and setters are often criticized as being not proper OO. On the other hand most OO code I've seen has extensive getters and setters. When are getters and setters justified? Do you try to avoid using them? Are they overused in general? If your favorite language has properties (mine does) then such things are also considered getters and setters for this question. They are same thing from an OO methodology perspective. They just have nicer syntax. Sources for Getter/Setter Criticism (some taken from comments to give them better visibility): http://www.javaworld.com/javaworld/jw-09-2003/jw-0905-toolbox.html http://typicalprogrammer.com/?p=23 http://c2.com/cgi/wiki?AccessorsAreEvil http://www.darronschall.com/weblog/2005/03/no-brain-getter-and-setters.cfm http://www.adam-bien.com/roller/abien/entry/encapsulation_violation_with_getters_and To state the criticism simply: Getters and Setters allow you to manipulate the internal state of objects from outside of the object. This violates encapsulation. Only the object itself should care about its internal state. And an example Procedural version of code. struct Fridge { int cheese; } void go_shopping(Fridge fridge) { fridge.cheese += 5; } Mutator version of code: class Fridge { int cheese; void set_cheese(int _cheese) { cheese = _cheese; } int get_cheese() { return cheese; } } void go_shopping(Fridge fridge) { fridge.set_cheese(fridge.get_cheese() + 5); } The getters and setters made the code much more complicated without affording proper encapsulation. Because the internal state is accessible to other objects we don't gain a whole lot by adding these getters and setters. The question has been previously discussed on Stack Overflow: http://stackoverflow.com/questions/565095/java-are-getters-and-setters-evil http://stackoverflow.com/questions/996179

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• Should one generally develop a client library for REST services to help prevent API breakages?

  - by BestPractices

  We have a project where UI code will be developed by the same team but in a different language (Python/Django) from the services layer (REST/Java). The code for each layer exits in different code repositories and which can follow different release cycles. I'm trying to come up with a process that will prevent/reduce breaking changes in the services layer from the perspective of the UI layer. I've thought to write integration tests at the UI layer level that we'll run whenever we build the UI or the services layer (we're using Jenkins as our CI tool to build the code which is in two Git repos) and if there are failures then something in the services layer broke and the commit is not accepted. Would it also be a good idea (is it a best practice?) to have the developer of the services layer create and maintain a client library for the REST service that exists in the UI layer that they will update whenever there is a breaking change in their Service API? Conceivably, we would then have the advantage of a statically-typed API that the UI code builds against. If the client library API changes, then the UI code won't compile (so we'll know sooner that there was a breaking change). I'd also still run the integration tests upon building the UI or services layer to further validate that the integration between UI and the service(s) still works.

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• Studierende/Schüler, Professoren, Dozenten oder wissenschaftliche Mitarbeiter willkommen!!!

  - by britta wolf

  Vom 20.-22. November 2012 findet in Nürnberg die große Konferenz der Deutschen Oracle Anwendergruppe (DOAG) statt. Es werden wieder über 400 Fachvorträge aus den Bereichen  Datenbank, Oracle & SAP, Java, MySQL, BPM, Middleware&SOA, usw. angeboten. Zahlreiche ausstellende Firmen sind ebenfalls vor Ort. Eine gute Möglichkeit für alle, sich über die aktuellsten Entwicklungen im Oracle-Umfeld zu informieren und sich als Student mit potentiellen Arbeitgebern bereits während des Studiums in Kontakt zu treten. "Netzwerken" lautet die Devise! Die DOAG bietet Studierenden/Schülern sowie Dozenten oder wissenschaftlichen Mitarbeitern eine kostenlose (!) Teilnahme an dieser 3-tägigen Konferenz. Neugierig? Wie das geht, erfahren Sie hier. WICHTIG: die Plätze sind begrenzt - melden Sie sich bis Mitte Oktober an! Lesen Sie auch den kurzen Beitrag der HS Ulm, die mit einer Exkursiongruppe an der DOAG-Konferenz bereits diverse Male teilgenommen hat.

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• New cloud development workflow using Github, Cloud9ide and CloudFoundry.

  - by weng

  So time is changing towards cloud development/computing. I'm trying to get the new "cloud" workflow based on the services I'm going to use: Github, Cloud9ide and CloudFoundry. Here is what is on my mind: Github acts like a central (main repo) just like yesterday's local filesystem. Every service will base it service upon this main repo. Workflow: Github: I create a new Github repo served as main repo for the project. Cloud9ide. I open my Github repo and write my tests and implementation (BDD/TDD). When I'm ready I save (commit) it to main repo on Github. X: A running instance of Jenkins detects someone has committed and fetches the latest commit, builds, deploys, tests (yeti and/or selenium) and reports if the tests were passed or not. If not, I make another commit til all tests are passing. X: I run the CloudFoundry commands to push the main Github repo to CloudFoundry's server and it will deploy my app automatically. What I'm still confused about is where this X environment will be. On a local server where I have to install Jenkins? Or could I install it on Cloud9ide (when java is supported) or will it be on another cloud service? Also, that X environment has to be able to fetch (clone) the Github repo and run the build scripts. And since the concept of Cloud9ide is very new and there haven't been any other predecessors I really wonder how the workflow will look like. We all know Github's workflow. We now know CloudFoundry's workflow (deploy/scale with a restful API/command line tool). But how Cloud9Ide will operate is still somewhat unclear to me. Someone on Cloud9ide mentioned that there will be buttons like deploy so I can deploy with one click. But that I guess will depend on what services that deploy process will hook up into etc. Could someone enlighten this cloud workflow topic and fill in the gaps. Thanks.

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• What's the downsides of Running Ubuntu 9.10 32bit on AMD64 Processor

  - by Omar Dolaimy

  Hi, I was thinking about installing Ubuntu 9.10 32bit on a DELL Inspiron 1501 with 64bit processor Laptop. Since It's was real pain to me to run Java Browser plugin, Flash Plugin, J2ME Toolkit, and many other tools. But It was 90% OK with me. This was Ubuntu 8.10 (a year ago), And now the Ubuntu 9.10 came and I'm thinking about installing the 32 bit on it and get rid of the pain. Is there a downside for that?? considering that the display card is not supported now so exclude this from your calculation, I will never play REAL games on it and I'm not a big fan of Compiz effects. I'm not here to ask about the performance (which is about 15%+ for the 64bit only), I just want compatibility!

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• TDD - Outside In vs Inside Out

  - by Songo

  What is the difference between building an application Outside In vs building it Inside Out using TDD? These are the books I read about TDD and unit testing: Test Driven Development: By Example Test-Driven Development: A Practical Guide: A Practical Guide Real-World Solutions for Developing High-Quality PHP Frameworks and Applications Test-Driven Development in Microsoft .NET xUnit Test Patterns: Refactoring Test Code The Art of Unit Testing: With Examples in .Net Growing Object-Oriented Software, Guided by Tests---This one was really hard to understand since JAVA isn't my primary language :) Almost all of them explained TDD basics and unit testing in general, but with little mention of the different ways the application can be constructed. Another thing I noticed is that most of these books (if not all) ignore the design phase when writing the application. They focus more on writing the test cases quickly and letting the design emerge by itself. However, I came across a paragraph in xUnit Test Patterns that discussed the ways people approach TDD. There are 2 schools out there Outside In vs Inside Out. Sadly the book doesn't elaborate more on this point. I wish to know what is the main difference between these 2 cases. When should I use each one of them? To a TDD beginner which one is easier to grasp? What is the drawbacks of each method? Is there any materials out there that discuss this topic specifically?

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• Are there any actual case studies on rewrites of software success/failure rates?

  - by James Drinkard

  I've seen multiple posts about rewrites of applications being bad, peoples experiences about it here on Programmers, and an article I've ready by Joel Splosky on the subject, but no hard evidence of case studies. Other than the two examples Joel gave and some other posts here, what do you do with a bad codebase and how do you decide what to do with it based on real studies? For the case in point, there are two clients I know of that both have old legacy code. They keep limping along with it because as one of them found out, a rewrite was a disaster, it was expensive and didn't really work to improve the code much. That customer has some very complicated business logic as the rewriters quickly found out. In both cases, these are mission critical applications that brings in a lot of revenue for the company. The one that attempted the rewrite felt that they would hit a brick wall at some point if the legacy software didn't get upgraded at some point in the future. To me, that kind of risk warrants research and analysis to ensure a successful path. My question is have there been actual case studies that have investigated this? I wouldn't want to attempt a major rewrite without knowing some best practices, pitfalls, and successes based on actual studies. Aftermath: okay, I was wrong, I did find one article: Rewrite or Reuse. They did a study on a Cobol app that was converted to Java.

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• Is comparing an OO compiler to a SQL compiler/optimizer valid?

  - by Brad

  I'm now doing a lot of SQL development at my new job where as before I was doing Object Oriented desktop app stuff. I keep running across very large scripts (thousands of lines) and wanting to refactor in some way. I am seeing that SQL is a different sort of beast and it's probably fine to have these big scripts for the most part but while explaining this to me people are also insisting that the whole idea of refactoring is bad. That stuff like the .NET compiler are actually burdened by refactored code and that a big wall of code is more efficient and better design than code designed for reuse, readability and scalability. The other argument is that OO compilers are almost dangerously inefficient and don't have efficient memory management or runs too many CPU instructions compared to older "simpler" compilers and compared to SQL. Are these valid complaints? Even if some compiler like a C compiler is modestly more "efficient" (whatever that means on this high of a level without seeing code) would you want to write applications in C over C# or Java? Is comparing an OO compiler to a SQL compiler/optimizer even valid?

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• Need game development sandbox like Etoys to do 2D games prototyping

  - by Dimitry Tato

  I am new to game development, and currently working on development a mobile 2D game (for android). As the part of the development process, I need to build a prototype and playtest it, to see if the game mechanics and user interaction is ok For example: if I have a starship shooting at ememies, I need to see what's the best size for my starship. what trajectories should the enemy ships fly and what velocity. Should the enemy ships be coming only from left to right, or also from top Should the enemy ships form a 'flock' or just fly by themselves what's the best 'powerup' pickup mechanics: to shoot it, or to pick it with the ship etc Implementing these details directly in Java (Android) is time consuming and as many of the 'hypotheses' will be rejected, I also don't want to invest a lot of time to code thigs, majority of which gonna be rejected. I found 'tool' Etoys http://www.youtube.com/watch?v=34cWCnLC5nM&feature=related and official website http://www.squeakland.org/ which helps to build 'prototype' quickly, but Etoys is meant for children learning programming and is too basic. SO MY QUESTION IS: Is there any prototyping tool, as simple as Etoys and with better prototype quality?

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• What is the current state of development for the FLAC codec?

  - by TwentyMiles

  I have a pretty large collection of FLAC files created from my CD collection. I love the FLAC format and the sound quality that you can get from it. Lately, however, I've been trying to write a few tools to manipulate the files and I've been noticing what seems to be a stagnation of the community around the codec. Some of the links on the official FLAC page point to thing that are no longer relevant (7digital, for example, appears to no longer sell FLAC encoded songs). It's pretty hard to find hardware players that support FLAC any more (most noticeably it's not present on lower end players when it used to be, and playback is absent on Android). Programming language tools (Java and .NET libraries) are at best old, and at worst unfinished. What's the current state of FLAC development? Has it been replaced by another codec?

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• Implementing a multilanguage AI contest platform

  - by Alejandro Piad

  This is a followup to this question. To sum: I'm implementing an AI contest site, where each user may submit several AI implementations for different games. Think about Google AI Challenge but instead of just having a big event once a year, I would like it more on a league fashion, with all virtual players playing with each other every some close period of time. I want to support as many programming languages as possible. I've seen that contest sites (like codeforces) ask you to submit a source code and interact through stdin and stdout. The first question is: what is the best way of supporting multiple languages? As I see it, I can either ask people to upload some binary/script, and interact either through stdin/*stdout*, or sockets, or the file system; or ask people to submit source code, and wrap it with whatever is necessary for the interaction. I would like to skip the need to compile the code by myself (in the server, I mean), but I am willing to do it if its the "best" choice. I need to comunicate virtual players with each other, or even better, with some intermediary arbiter. The second question is regarding security. If I'm going to be running user code in my server, I want to ensure strict security conditions, like no file system access, no networking, etc. Otherwise it would be a safe heaven for hackers. I will be implementing the engine/arbiter in .NET. I would like to support at least C#, C++, Java and Python for the user's implementations. I'm willing to write interfaces for each of these languages to simplify the user interaction with the system. Thanks in advance.

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• Is there a LOGO interpreter that actually has a turtle?

  - by Tim Post

  This is not a repeat of the now infamous "How do I move the turtle in LOGO?" Recently, I had the following conversation with my five year old daughter: Daughter: Daddy, do you write programs? Me: Yes! Daughter: Daddy, what's a program? Me: A program is a set of instructions that a computer follows. Daughter: Daddy, can I write a program too? Me: Sure! This got me scrambling to think of a very basic language that a five year old could get some satisfaction from mastering rather quickly. I'm ashamed to admit that the first thing that came to mind was this: 10 INPUT "Tell me a secret" A$ 20 PRINT "Wow really? :" A$ 30 GOTO 10 That isn't going to hold a five year old's attention for very long and it requires too much of a lecture. However, moving a turtle around and drawing neat pictures might just work. Sadly, my search for a LOGO interpreter yielded noting but ad ridden sites, flight simulators and a whole bunch of other stuff that I really don't want. I'm hoping to find a cross platform (Java / Python) LOGO interpreter (dare I call it simulator?) with the following features: Can save / replay commands (stored programs) Has an actual turtle Sound effects are a plus Have you stumbled across something like this, if so, can you provide a link? I hate to ask a 'shopping' sort of question, but it seemed much better than "Is LOGO appropriate for a five year old?"

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• GIS-based data visualization and maintenance tool

  - by Dave Jarvis

  Background Looking to leverage an existing GIS system for exploring organizational data. Architecture The following figure represents a high-level overview of the system's desired features: The most basic usage would be as follows: The user visits a web site. The system presents a map (having regions, cities, and buildings). The user drills-down on the map to a particular building. The system provides a basic CRUD interface. The user can view and modify information about personnel (e.g., their assigned teams), equipment (e.g., network appliances), applications, and the building itself (e.g., contact and phone numbers). Ideally, all the components should be open-source (or otherwise free). Problem This must be a small project that needs a quick (but functional) prototype, mostly to confirm whether or not such a system would be useful in the long term. Questions What software components would you use to quickly develop a working prototype? What open-source solutions already exist, if any? Ideas Here is what I am thinking: PostGIS - Define the regions, cities, and sites Google Maps - Display an interactive, clickable map geoJSON - Protocol between PostGIS and Google Maps Seam - CRUD interface Custom Development For example, this would entail: Installation and configuration Configure SSH for remote logins Subversion (or git) PostgreSQL PostGIS Java Tomcat Seam JasperReports Enter GIS information into PostGIS Aggregate data sources into PostgreSQL database Develop starting page for map interface Develop clickable Google Maps interface Develop summary reports Develop CRUD interface using Seam for data maintenance Surely something like this already exists? Thank you!

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• Apache proxy is modifying the HTTP status code

  - by jarnbjo

  I am using Apache as a proxy frontend for a Java web application, which is deployed on WebSphere. The web application is using custom status codes (55x) to signal specific errors to the clients. When accessing the web application directly through the WebSphere HTTP listener, everything works as expected, but when these requests are proxied through an Apache load balancer, the status codes are modified by Apache and replaced with a generic 500 error code (internal server error). In Apache's access.log, the correct status code is logged: <IP> - - [11/Nov/2011:17:24:53 +0100] "POST <URL> HTTP/1.1" 551 36 But the actual response received by the client starts like this (logged with tcpdump): HTTP/1.1 500 Internal Server Error ... Followed by the real status code in the response content: ... Error 551: Berichteter Fehler: 551 ... Is there an obvious reason for this behaviour or does someone have a suggestion on how to modify the Apache configuration to forward the "real" status code instead of 500?

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• Which are the non-x text editors in Powershell?

  - by Andrei T. Ursan

  Are there some editors like emacs, vi/vim, specifically for power shell, if so which are the best? I will have to do some work on windows and I need some unix productivity - which means for me shell + text editor with syntax highlighting (for python, java, c, c++), so which are my options? Edit: I'm looking for an alternative at vim or other unix editors, and cygwin is not an option. I just want from the command line to say texteditor_name file1, modify it, save it etc, and all of these to happen inside the terminal, not in another interface etc.

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• Contribute to GlassFish in Five Different Ways

  - by arungupta

  GlassFish has a lot to offer from Java EE 6 compliance, HA & Clustering, RESTful administration, IDE integration and many other features. However a recent blog by Markus, a GlassFish Champion, said something different: Ask not what GlassFish can do for you, but ask what you can do for GlassFish! Markus explained how you can easily contribute to GlassFish without being a programming genius. The preparatory steps are simple: • First of all: Don't be afraid! • Prepare yourself - Get up to speed! And then specific suggestions with cross-referenced documents: • Review, Suggest and Add Documentation! • Help Others - be a community hero! • Find and File Bugs on Releases! • Test-drive Promoted Builds and Release Candidates! • Work with Code! Get things done! Are you ready to contribute to GlassFish ? Read more details in Markus's blog.

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• Unable to connect to mysql through JDBC connector through Tomcat or externally.

  - by iftrue

  I've installed a stock mysql 5.5 installation, and while I can connect to the mysql service via the mysql command, and the service seems to be running, I cannot connect to it through spring+tomcat or from an external jdbc connector. I'm using the following URL: jdbc:mysql://myserver.com:myport/mydb with proper username/password, but I receive the following message: server.com: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. the driver has not received any packets from the server. and tomcat throws: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) Which seems to be the same issue as if I try to connect externally.

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• Oracle Systems and Solutions at CloudExpo NY 2012

  - by ferhat

  Oracle's Larry Ellison and Mark Hurd just unveiled industy's broadest cloud strategy on June 6, with services based on industry standards, with 100+ enterprise applications live in the Cloud today!  The broadest strategy to support your journey along the cloud in any path chose, at any pace your business require and need. This is great assurance for your journey into the clouds as it is, at the same time, quite a temptation, don't you think? We will be at the Cloud Expo Conference to take place June 11-14 in New York. Oracle is Platinum Plus sponsor of 10th International  Cloud Computing Conference & Expo 2012 East. Oracle is also glad to offer complimentary VIP Gold Passes to the conference. We wish everyone a great and productive time with all  the fellow cloudsters.  We, the systems solutions group at Oracle, have prepared Oracle Optimized Solution for Enterprise Cloud Infrastructure to help you start your Infrastructure-as-a-Service with ease, confidence, speed, and savings.  In this solution we are now bringing together the power of Oracle Solaris and SPARC T4 servers. We will be at the Cloud Bootcamp on Wednesday June 13th discussing how this combination can maximize return on investment and help organizations manage costs for their existing infrastructures or for new enterprise cloud infrastructure design. We will also be at the Expo floor #511 throughout the Cloud Expo conference. Join us for the keynote, general session, and technical sessions with Oracle: Keynote Session: A Pragmatic Journey to the Cloud , Tuesday, June 12, 2012 General Session: Oracle Cloud - An Enterprise Cloud for Business-Critical Applications , Monday, June 11, 2012 Conference Session: Accelerate Enterprise Cloud Deployment and Gain Total Cloud Control, Monday, June 11, 2012 Conference Session: The Java EE 7 Platform: Developing for the Cloud, Monday, June 11, 2012 Conference Session: Integrating Big Data into Your Data Center: A Big Data Reference Architecture, Monday, June 11, 2012 Conference Session: Borderless Applications in the Cloud with Oracle VM and Oracle Virtual Assembly Builder, Tuesday, June 12, 2012 Conference Session: Building a Private, Public, or Hybrid Cloud? Simplify Your Cloud with Oracle’s Complete Cloud Solution,Tuesday, June 12, 2012 Cloud Boot Camp: Building Private IaaS with Oracle Solaris and SPARC, Wednesday, June 13, 2012

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