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  • Architectural Composition Languages

    - by C. Lawrence Wenham
    Recently stumbled upon this paper (PDF) talking about ACLs, or Architectural Composition Languages. They're a fusion of two earlier lines of research: Architectural Definition Languages (such as UML) and Object Composition Languages (such as XAML, WWF, or scripting languages). The goal of an ACL is to have a high-level description of a program's architecture which can also be compiled into a runnable program. The high-level description assists automated analysis, while the 'executability' means changes can be tested immediately. You would still author the components of the program in a conventional programming language (C, Java, Python, etc), but they would be composed into a complete program by the ACL. One of the expected benefits is that a program can be ported to a different platform by swapping in "similar but different" components. I've been hankering for something like this for a long time (see this answer I gave on a StackOverflow question a few years ago). The paper mentions that the researchers were working on a language called ACL/1 that initially targeted Java, but would be ported to support .Net as well. However, I can't find any more mention of ACL/1 anywhere. Has there been any more work done on this? Are there any other implementations of the ACL concept that are available for use or experimentation?

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  • Why is my wireless significantly slower on Ubuntu 12.04, as compared to windows 7?

    - by user89266
    I'm dual booting 12.04, and Win7. Just a tiny bit of background, I'm starting to get more and more interested in programming and 3d modelling, so I'd like to learn more about ubuntu as a result of those interests. Still a complete newb though! Anyway, When downloading on windows, I get 1.5mb/s easy. Now I swap over to Ubuntu, and it hasn't topped 150 kb/s since I installed it some 6 months ago. I'd downloaded most of my programs on windows, so I never really noticed it, but as I'm committing to ubuntu more, it's starting to hinder me. I'm with Shaw, on their Highspeed 20, which gives me 20 mbps down, and 6mbps up. Speedtest.com shows me varying figures somewhat close to what shaw says they give on both windows and ubuntu, which is to be expected, given that it is shaw afterall... So, I don't know what you guys need to know, and I know even less about how to get it to you. Whatever information you guys need, tell me how to get it, how to get it up here, and i'll get it on here! I thought it might be that I'm using a proprietary driver, when an open sourced one would work better? But I really have no clue. Any help would be very much appreciated. Thanks guys!

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  • CodePlex Daily Summary for Friday, June 07, 2013

    CodePlex Daily Summary for Friday, June 07, 2013Popular ReleasesASP.NET MVC Forum: MVCForum v1.3.5: This is a bug release version, with a couple of small usability features and UI changes. All the small amount of bugs reported in v1.3 have been fixed, no upgrade needed just overwrite the files and everything should just work.Json.NET: Json.NET 5.0 Release 6: New feature - Added serialized/deserialized JSON to verbose tracing New feature - Added support for using type name handling with ISerializable content Fix - Fixed not using default serializer settings with primitive values and JToken.ToObject Fix - Fixed error writing BigIntegers with JsonWriter.WriteToken Fix - Fixed serializing and deserializing flag enums with EnumMember attribute Fix - Fixed error deserializing interfaces with a valid type converter Fix - Fixed error deser...Christoc's DotNetNuke Module Development Template: DotNetNuke 7 Project Templates V2.3 for VS2012: V2.3 - Release Date 6/5/2013 Items addressed in this 2.3 release Fixed bad namespace for BusinessController in one of the C# templates. Updated documentation in all templates. Setting up your DotNetNuke Module Development Environment Installing Christoc's DotNetNuke Module Development Templates Customizing the latest DotNetNuke Module Development Project TemplatesPulse: Pulse 0.6.7.0: A number of small bug fixes to stabilize the previous Beta. Sorry about the never ending "New Version" bug!ZXMAK2: Version 2.7.5.3: - debugger: add LPC indicator (last executed opcode pc) - add host joystick support (written by Eltaron) - change file extension for CMOS PENTEVO to "cmos" - add hardware value monitor (see Memory Map for PENTEVO/ATM/PROFI)QlikView Extension - Animated Scatter Chart: Animated Scatter Chart - v1.0: Version 1.0 including Source Code qar File Example QlikView application Tested With: Browser Firefox 20 (x64) Google Chrome 27 (x64) Internet Explorer 9 QlikView QlikView Desktop 11 - SR2 (x64) QlikView Desktop 11.2 - SR1 (x64) QlikView Ajax Client 11.2 - SR2 (based on x64)BarbaTunnel: BarbaTunnel 7.2: Warning: HTTP Tunnel is not compatible with version 6.x and prior, HTTP packet format has been changed. Check Version History for more information about this release.SuperWebSocket, a .NET WebSocket Server: SuperWebSocket 0.8: This release includes these changes below: Upgrade SuperSocket to 1.5.3 which is much more stable Added handshake request validating api (WebSocketServer.ValidateHandshake(TWebSocketSession session, string origin)) Fixed a bug that the m_Filters in the SubCommandBase can be null if the command's method LoadSubCommandFilters(IEnumerable<SubCommandFilterAttribute> globalFilters) is not invoked Fixed the compatibility issue on Origin getting in the different version protocols Marked ISub...BlackJumboDog: Ver5.9.0: 2013.06.04 Ver5.9.0 (1) ?????????????????????????????????($Remote.ini Tmp.ini) (2) ThreadBaseTest?? (3) ????POP3??????SMTP???????????????? (4) Web???????、?????????URL??????????????? (5) Ftp???????、LIST?????????????? (6) ?????????????????????Media Companion: Media Companion MC3.569b: New* Movies - Autoscrape/Batch Rescrape extra fanart and or extra thumbs. * Movies - Alternative editor can add manually actors. * TV - Batch Rescraper, AutoScrape extrafanart, if option enabled. Fixed* Movies - Slow performance switching to movie tab by adding option 'Disable "Not Matching Rename Pattern"' to Movie Preferences - General. * Movies - Fixed only actors with images were scraped and added to nfo * Movies - Fixed filter reset if selected tab was above Home Movies. * Updated Medi...Nearforums - ASP.NET MVC forum engine: Nearforums v9.0: Version 9.0 of Nearforums with great new features for users and developers: SQL Azure support Admin UI for Forum Categories Avoid html validation for certain roles Improve profile picture moderation and support Warn, suspend, and ban users Web administration of site settings Extensions support Visit the Roadmap for more details. Webdeploy package sha1 checksum: 9.0.0.0: e687ee0438cd2b1df1d3e95ecb9d66e7c538293b Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.93: Added -esc:BOOL switch (CodeSettings.AlwaysEscapeNonAscii property) to always force non-ASCII character (ch > 0x7f) to be escaped as the JavaScript \uXXXX sequence. This switch should be used if creating a Symbol Map and outputting the result to the a text encoding other than UTF-8 or UTF-16 (ASCII, for instance). Fixed a bug where a complex comma operation is the operand of a return statement, and it was looking at the wrong variable for possible optimization of = to just .VG-Ripper & PG-Ripper: VG-Ripper 2.9.42: changes NEW: Added Support for "GatASexyCity.com" links NEW: Added Support for "ImgCloud.co" links NEW: Added Support for "ImGirl.info" links NEW: Added Support for "SexyImg.com" links FIXED: "ImageBam.com" linksDocument.Editor: 2013.22: What's new for Document.Editor 2013.22: Improved Bullet List support Improved Number List support Minor Bug Fix's, improvements and speed upsCarrotCake, an ASP.Net WebForms CMS: Binaries and PDFs - Zip Archive (v. 4.3 20130528): Features include a content management system and a robust featured blogging engine. This includes configurable date based blog post URLs, blog post content association with categories and tags, assignment/customization of category and tag URL patterns, simple blog post feedback collection and review, blog post pagination/indexes, designation of default blog page (required to make search, category links, or tag links function), URL date formatting patterns, RSS feed support for posts and pages...PHPExcel: PHPExcel 1.7.9: See Change Log for details of the new features and bugfixes included in this release, and methods that are now deprecated.Droid Explorer: Droid Explorer 0.8.8.10 Beta: Fixed issue with some people having a folder called "android-4.2.2" in their build-tools path. - 16223 Magick.NET: Magick.NET 6.8.5.402: Magick.NET compiled against ImageMagick 6.8.5.4. These zip files are also available as a NuGet package: https://nuget.org/profiles/dlemstra/patterns & practices: Data Access Guidance: Data Access Guidance Drop3 2013.05.31: Drop 3DotNet.Highcharts: DotNet.Highcharts 2.0 with Examples: DotNet.Highcharts 2.0 Tested and adapted to the latest version of Highcharts 3.0.1 Added new chart types: Arearange, Areasplinerange, Columnrange, Gauge, Boxplot, Waterfall, Funnel and Bubble Added new type PercentageOrPixel which represents value of number or number with percentage. Used for sizes, width, height, length, etc. Removed inheritances in YAxis option classes. Closed issues: 682: Missing property - XAxisPlotLinesLabel.Text 688: backgroundColor and plotBackgroundColor are...New ProjectsAccountingTest: just to learn asp.net mvc 3 Agile Poker Cards for Windows Mobile: During a scrum or other agile processes, you have to estimate the size of a user story during a planning session. With the Agile Poker Cards program there is no need for using real cards anymore!Buildinator: Buildinator generates TFS Build definitions from an XML file, enabling canonical "templates" that make it easy to add or copy build definitions.Clipboard Capture Plugin: Captures an image in the clipboard and gives you more options to insert the image into Live WriterComercial HS: Commercial hsCommonExtranet: CommonExtranet is a basis for an Extranet web site with a user authentication mechanism that incorporates password aging and various features expected on a domain LogOnDataVeryLite: DataVeryLite is a lightweight *Persistence Framework*. DataVeryLite???????*?????*. ??????Nhibernate?????,??Linq to sql???????,?????DataVeryLite.daydayup: snd\realdamon_cpDNN Extension Url Providers: The DNN Extension Url Providers project contains installable extensions for extending DNN URL functionality.DotNetNuke Kitchen Sink: A sample module project for DotNetNuke with a variety of different scenarios covered.Football Team Management: Manage team, player, match and staffFreePiano: Play piano using your computer keyboard.GIF animator: Dev in progessI'm Feeling Lucky Plugin: Lets you put a link in that acts as though doing an I'm Feeling Lucky search.Insert Video Jnr: This is a baby version of my Video plugin, it is intended for Hosted Wordpress blogs only and shouldn't be used with other blog providers.jabbrmercurial: 22Kax.WebControls.RadioButtonList: Web Custom Control that extend RadioButtonList to allow uncheckable state.Kinect Screen Aware: Kinect Screen Aware uses a Kinect to detect touch, hover, gestures, and voice on a standard television display. It's designed to be low cost and easy to setuplppbop: Aplikasi Laporan Bantuan Operasional PendidikanmobiSms: mobismsnga: National Geography of AzerothRadminPassword: ????????? ??? ??????????????? ????? ??????? ? ????????? ????????? ?????????? ?????????? ?? Radmin. A program to automatically enter the passwords in the famous PC remote control software Radmin.Rx Heat: Rx Heat is a library of helper classes that complements the Reactive Extensions Library with additional features. Schema Generator: The basic idea behind this utility is to emit the database schema from an existing SQL Server database. From a developer perspective, it is sometimes very much handy to quickly take a printout of the database structure for creating the UI layout.SharePoint Packager: Perform the instalation, upgrade and retraction of Ms Sharepoint Applications fast, easy and efficientsmartTouch: :-)SpotifyLync: A small tray application that reports your Spotify status to your Microsoft Lync client. Alos contains additional Spotify / Lync features.Syngine: A simple to use game framework using MonoGame and Farseer Physicstest060601CM: testtestMC053003: testToSic.Eav: A powerfull EAV (Entity-Attribute-Value) system created by 2sic Internet Solutions in Switzerland. It's currently mainly used inside 2SexyContent for DotNetNukeTraceLight: <project name> TraceLight ray tracer </project name> <programming language> C# </programming language>trakr: minimalist webtracking software written in python and twistedTwitterXML: A .NET wrapper library for the Twitter REST API. Currently, all of the methods return an XMLDocument. Also included are classes for Users, Statuses, and Direct Messages that use XML serialization for converting the XML responses to objects with a Deserialize() call.Universal Parking Centre: Universal Parking Centre is a website-based software developed by Center Code to help you in organizing your parking business.Velocity OS: Be fast, Be strong. It's Velocity.WinKeGen Code Samples: This project will allow beginning developers a close look at some code samples and variations of how to use those samples in their own code.WinRT Synth lib: Project Description this project aims to provide an easy-to-use API, for sound synthesis under winrt, in c#. It use the XAudio2 api for the playback of the sounWpfCollaborative3D: WpfCollaborative3DX-Parking: Our online parking sites , try at : x-parking.pemrogramaninternet.infoYnote Plugins: Ynote Classic Plugins which help in transforming Ynote Classic into a powerful HTML / XML Editor or an IDE.

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  • Suggested Resources Visual Studio Plug-In

    Todays post is a quick plug for a new tool developed by my friend Olaf Conijn, who (amongst other things) has been a developer on several versions of Enterprise Library. His new tool is called Suggested Resources for .NET Developers, and the current 0.8 release works with both Visual Studio 2008 and Visual Studio 2010. So what does it do? Well heres what Olaf has to say: This Visual Studio Integration Package is a proof of concept in: Aggregation of online content within the Visual Studio IDE. Analysis of development activities within the Visual Studio IDE. This combination of features allows Suggested Resources for .NET developers to pro-actively suggest online content that applies on the task being performed by a developer... A bit like having a programming pair that searches for online resources while you focus on getting the job done. For more info, screenshots and downloads, head to the Codeplex project site or the Visual Studio Gallery page.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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  • Can inbound links through template-based layouts result in penalties?

    - by Liam Sorsby
    So obviously link building is encouraged as long as it is natural, organic and has meaningful links with content relevant to your site. Obviously with the constant release of new updates to algorithms, Google is flagging sites for unnatural links to their sites. My Question is: Can this be caused by templating systems? With WordPress for example, where you can add a link on the footer and it is repeated throughout the entire website generating thousands of links? If we don't add any links, Good Content will be re-posted and linked to, surely if your content is constantly linked to this will flag your site for "unnatural" content as it's difficult to see if someone has been paid to write an article on your content. Or does Google just simply want us to audit some of the links to show we are making an effort? As you can tell we have had a Manual action for: Unnatural links to your site—impacts links. However, this seems to impact our website as well. Edit: To clarify the question: Can you get penalised for paying for advertising on a site that uses a templated sidebar. So when they create a new blog/page ect your link is also added onto the page hence resulting in 1000's of links to one page on our site. I know that one effect maybe a 0 pagerank web page linking to your page dilutes the PR of our page. However the links are only inbound not reciprocal

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  • Computer science curriculum for non-CS major?

    - by Daniel
    Hi all, I would like to have some ideas for building up my foundation CS skills. I have started programming computers 10 years ago and have made a pretty good career out of it. However, I cannot stop thinking that the path that brought me here was very particular, and if something goes wrong (e.g. I get laid off) it would be harder to find a job here in the US on the same salary level, OR in a top company. The reason I say that is that I am a self-learner; my degree is not in Computer Science so although I master C/C++/Java, I do not have the formal CS and mathematical background that many other software developers (esp. here in the US) have. When I look at job interview questions from Apple, Google, Amazon, I have the impression that I'd flunk those technical interviews at some point. Don't get me wrong, I know my algorithms and data structures, but when things dive too deeply into the CS realm I am in trouble. What can I do to close the gap? I was thinking about a MSc in CS, but will I even UNDERSTAND what's going on there if I'm not a CS undergrad? Should I go back to basics and get a BSc in CS instead? I always tend to go into self-study mode when I want to learn new stuff, but I have the impression that I will need more formal education in CS if I want to have a shot at working at those kinds of companies. Thank you!

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  • How to restore Windows7 after restore ubuntu bootloader?

    - by Mateusz Rogulski
    At first I will describe my situation in a few points: I have installed Windows7, and then Ubuntu 11.04 on my machine. Then everything works fine and at start of system I have screen from linux where I can choose the system. Then I reinstall Windows7 and install Windows 8 on other partition. Then I can choose between Win7 and win8 when I start system. Then I need my Ubuntu back so I want restore my bootloader from Ubuntu. I boot Ubuntu from USB and in terminal write this commands: sudo fdisk -l Then I get: /dev/sda1 1 13 104391 de Dell Utility /dev/sda2 14 2805 22425601 5 Rozszerzona /dev/sda3 * 2805 41968 314572800 7 HPFS/NTFS /dev/sda4 41968 60802 151282688 7 HPFS/NTFS /dev/sda5 14 2445 19530752 83 Linux /dev/sda6 2445 2805 2893824 82 Linux swap / Solaris Next commands: sudo mount /dev/sda5 /mnt sudo mount --bind /dev /mnt/dev sudo mount --bind /proc /mnt/proc sudo chroot /mnt grub-install /dev/sda I get Installation finished. No error reported.. And when I start my machine I have old Ubuntu start screen to choose system. Ubuntu works well. But There are no Windows 8 option. But my primary problem is when I choose Windows 7 I have: error: no such device ... error: no such disk so I have no idea what can I do. I really need both systems to work. Any help would be appreciated.

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  • HTG Explains: What Is Bitcoin, the Virtual Digital Currency?

    - by YatriTrivedi
    Bitcoin is a virtual currency that employs some very interesting principles. Here’s the skinny on what exactly it is and how the fascinating technology behind it works. Disclaimer: This is NOT financial or legal advice. This. Is. NOT. Financial. Or. Legal. Advice. This is not, in any way, shape, or form, financial or legal advice. We’re covering this topic because of the technological implementations it uses and the innovations it attempts to make. If you do anything because of this post, we are not responsible because this is NOT financial or legal advice. ^_^ Latest Features How-To Geek ETC Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 The History Of Operating Systems [Infographic] DriveSafe.ly Reads Your Text Messages Aloud The Likability of Angry Birds [Infographic] Dim an Overly Bright Alarm Clock with a Binder Divider Preliminary List of Keyboard Shortcuts for Unity Now Available Bring a Touch of the Wild West to Your Desktop with the Rango Theme for Windows 7

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  • Gödel, Escher, Bach - Gödel's string

    - by Brad Urani
    In the book Gödel, Escher, Bach: An Eternal Golden Braid by Douglas Hofstadter, the author gives us a representation of the precursor to Gödel's string (Gödel's string's uncle) as: ~Ea,a': (I don't have the book in front of me but I think that's right). All that remains to get Gödel's string is to plug the Gödel number for this string into the free variable a''. What I don't understand is how to get the Gödel number for the functions PROOF-PAIR and ARITHMOQUINE. I understand how to write these functions in a programming language like FlooP (from the book) and could even write them myself in C# or Java, but the scheme that Hofstadter defines for Gödel numbering only applies to TNT (which is just his own syntax for natural number theory) and I don't see any way to write a procedure in TNT since it doesn't have any loops, variable assignments etc. Am I missing the point? Perhaps Gödel's string is not something that can actually be printed, but rather a theoretical string that need not actually be defined? I thought it would be neat to write a computer program that actually prints Gödel's string, or Gödel's string encoded by Gödel numbering (yes, I realize it would have a gazillion digits) but it seems like doing so requires some kind of procedural language and a Gödel numbering system for that procedural language that isn't included in the book. Of course once you had that, you could write a program that plugs random numbers into variable "a" and run procedure PROOF-PAIR on it to test for theoromhood of Gödel's string. If you let it run for a trillion years you might find a derivation that proves Gödel's string.

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  • Music While Coding [closed]

    - by inspectorG4dget
    Hi SO, Generally, while I'm coding, I prefer to listen to some background music. Nothing that'll get me distracted, but something that'll help keep the rhythm and isn't counterproductive when I need to stop coding to debug or to think of a way to solve a small problem that stands in the way of progress. Now, I have read some similar questions on reddit and on SO - specifically: which songs do you find most productive to listen to while coding, Music while programming and more. Sadly a lot of these questions were closed as off-topic, etc. But (1) I don't think this question is off-topic and I think that a lot of programmers can benefit from it. (2) It's a real question. I really want to know what music you guys would recommend because music helps when I'm coding. It's sad that SO: Music to listen to while coding cannot be found and this isn't of much help. I hope this doesn't get closed. PS: I want to turn this into a community wiki, but I don't seem to know how. I'd appreciate any help. Thank you, all. In response to kirk.burleson's comment: In case the question isn't already clear, I'm asking for recommendations/opinions of music to listen to while coding. I would like to know what you listen to when you code so that I can try it too. I am running out of good "coding music" and this is a problem for me because good "coding music" helps me code better.

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  • Leveraging .Net 4.0 Framework Tools For Encrypting Web Configuration Sections

    - by Sam Abraham
    I would like to share a few points with regards to encrypting web configuration sections in .Net 4.0. This information is also applicable to .Net 3.5 and 2.0. Two methods can work perfectly for encrypting connection strings in a Web project configuration file:   1-Do It All Yourself! In this approach, helper functions for encrypting/decrypting configuration file content are implemented. Program would explicitly retrieve appropriate content from configuration file then decrypt it appropriately.  Disadvantages of this implementation would be the added overhead for maintaining the encryption/decryption code as well the burden of always ensuring sections are appropriately decrypted before use and encrypted appropriately whenever edited.   2- Leverage the .Net 4.0 Framework (The Way to go!) Fortunately, all needed tools for protecting configuration files are built-in to the .Net 2.0/3.5/4.0 versions with very little setup needed. To encrypt connection strings, one can use the ASP.Net IIS Registration Tool (Aspnet_regiis.exe). Note that a 64-bit version of the tool also exists under the Framework64 folder for 64-bit systems. The command we need to encrypt our web.config file connection strings is simply the following:   Aspnet_regiis –pe “connectionstrings” –app “/sampleApplication” –prov “RsaProtectedConfigurationProvider”   To later decrypt this configuration section:   Aspnet_regiis –pd “connectionstrings” –app “/SampleApplication”   The following is a brief description of the command line options used in the example above. Aspnet_regiis supports many more options which you can read about in the links provided for reference below.   Option Description -pe  Section name to encrypt -pd  Section name to decrypt -app  Web application name -prov  Encryption/Decryption provider   ASP.Net automatically decrypts the content of the Web.Config file at runtime so no programming changes are needed.   Another tool, aspnet_setreg.exe is to be used if certain configuration file sections pertinent to the .Net runtime are to be encrypted. For more information on when and how to use aspnet_setreg, please refer to the references below.   Hope this helps!   Some great references concerning the topic:   http://msdn.microsoft.com/en-us/library/ff650037.aspx http://msdn.microsoft.com/en-us/library/zhhddkxy.aspx http://msdn.microsoft.com/en-us/library/dtkwfdky.aspx http://msdn.microsoft.com/en-us/library/68ze1hb2.aspx

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  • Why is a small fixed vocabulary seen as an advantage to RESTful services?

    - by Matt Esch
    So, a RESTful service has a fixed set of verbs in its vocabulary. A RESTful web service takes these from the HTTP methods. There are some supposed advantages to defining a fixed vocabulary, but I don't really grasp the point. Maybe someone can explain it. Why is a fixed vocabulary as outlined by REST better than dynamically defining a vocabulary for each state? For example, object oriented programming is a popular paradigm. RPC is described to define fixed interfaces, but I don't know why people assume that RPC is limited by these contraints. We could dynamically specify the interface just as a RESTful service dynamically describes its content structure. REST is supposed to be advantageous in that it can grow without extending the vocabulary. RESTful services grow dynamically by adding more resources. What's so wrong about extending a service by dynamically specifying a per-object vocabulary? Why don't we just use the methods that are defined on our objects as the vocabulary and have our services describe to the client what these methods are and whether or not they have side effects? Essentially I get the feeling that the description of a server side resource structure is equivalent to the definition of a vocabulary, but we are then forced to use the limited vocabulary in which to interact with these resources. Does a fixed vocabulary really decouple the concerns of the client from the concerns of the server? I surely have to be concerned with some configuration of the server, this is normally resource location in RESTful services. To complain at the use of a dynamic vocabulary seems unfair because we have to dynamically reason how to understand this configuration in some way anyway. A RESTful service describes the transitions you are able to make by identifying object structure through hypermedia. I just don't understand what makes a fixed vocabulary any better than any self-describing dynamic vocabulary, which could easily work very well in an RPC-like service. Is this just a poor reasoning for the limiting vocabulary of the HTTP protocol?

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  • Graduate expectations versus reality

    - by Bobby Tables
    When choosing what we want to study, and do with our careers and lives, we all have some expectations of what it is going to be like. Now that I've been in the industry for almost a decade, I've been reflecting a bit on what I thought (back when I was studying Computer Science) programming working life was going to be like, and how it's actually turning out to be. My two biggest shocks (or should I say, broken expectations) by far are the sheer amount of maintenance work involved in software, and the overall lack of professionalism: Maintenance: At uni, we were all told that the majority of software work is maintenance of existing systems. So I knew to expect this in the abstract. But I never imagined exactly how overwhelming this would turn out to be. Perhaps it's something I mentally glazed over, and hoped I'd be building cool new stuff from scratch a lot more. But it really is the case that most jobs are overwhelmingly maintenance, bug fixing, and support oriented. Lack of professionalism: At uni, I always had the impression that commercial software work is very process-oriented and stringently engineered. I had images of ISO processes, reams of technical documentation, every feature and bug being strictly documented, and a generally professional environment. It came as a huge shock to realise that most software companies operate no differently to a team of students working on a large semester-long project. And I've worked in both the small agile hack shop, and the medium sized corporate enterprise. While I wouldn't say that it's always been outright "unprofessional", it definitely feels like the software industry (on the whole) is far from the strong engineering discipline that I expected it to be. Has anyone else had similar experiences to this? What are the ways in which your expectations of what our profession would be like were different to the reality?

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  • PHP file_put_contents File Locking

    - by hozza
    The Senario: You have a file with a string (average sentence worth) on each line. For arguments sake lets say this file is 1Mb in size (thousands of lines). You have a script that reads the file, changes some of the strings within the document (not just appending but also removing and modifying some lines) and then overwrites all the data with the new data. The Questions: Does 'the server' PHP, OS or httpd etc. already have systems in place to stop issues like this (reading/writing half way through a write)? i. If it does, please explain how it works and give examples or links to relevant documentation. ii. If not, are there things I can enable or set-up, such as locking a file until a write is completed and making all other reads and/or writes fail until the previous script has finished writing? My Assumptions and Other Information: The server in question is running PHP and Apache or Lighttpd. If the script is called by one user and is halfway through writing to the file and another user reads the file at that exact moment. The user who reads it will not get the full document, as it hasn't been written yet. (If this assumption is wrong please correct me) I'm only concerned with PHP writing and reading to a text file, and in particular, the functions "fopen"/"fwrite" and mainly "file_put_contents". I have looked at the "file_put_contents" documentation but have not found the level of detail or a good explanation of what the "LOCK_EX" flag is or does. The senario is an EXAMPLE of a worst case senario where I would assume these issues are more likely to occur, due to the large size of the file and the way the data is edited. I want to learn more about these issues and don't want or need answers or comments such as "use mysql" or "why are you doing that" because I'm not doing that, I just want to learn about file read/writing with PHP and don't seem to be looking in the right places/documentation and yes I understand PHP is not the perfect language for working with files in this way...

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  • What are the best Microsoft Certifications to start with?

    - by emragins
    Background I have a bachelors in math and a certification. in C++ from 2007. Since then I've spent a lot of time working with python, C#, and started going through the ASP.NET certification materials. I'm starting to realize that the certification is going to take longer than anticipated and I'm not sure I want to spend the next 4-5 months studying before I have it completed. Most of resume shows teaching/tutoring experience with some low-level administration thrown in. Question If I want to get any programming position, which certifications would be best to start with? What would be the quickest and easiest to obtain, yet represent value for my employer? Are certifications even the way to go? If not, what would you suggest? Update I have several programs that I show off when I can (mostly games), and I'm about 75% through a C# application I hope to have done in the next week. Since most employers simply ask for a resume and not samples, what would be the best way to present the work to them?

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  • How to expose game data in the game without a singelton?

    - by zardon
    I'm quite new to cocos2d and games programming, and am currently I am writing a game that is currently in Prototype stage. Everything is going okay, but I've realized a potentially big problem and I am not sure how to solve it. I am using a singelton to store a bunch of arrays for everything, a global list of planets, a global list of troops, a global list of products, etc. And only now I'm realizing that all of this will be in memory and this is the wrong way to do it. I am not storing files or anything on the disk just yet, with exception to a save/load state, which is a capture of everything. My game makes use of a map which allows you to select a planet, then it will give you a breakdown of that planets troops and resources, Lets use this scenario: My game has 20 planets. On which you can have 20 troops. Straight away that's an array of 400! This does not add the NPC, which is another 10. So, 20x10 = 200 So, now we have 600 all in arrays inside a Singelton. This is obviously very bad, and very wrong. Especially as the game scales in the amount of data. But I need to expose pretty much everything, especially on the map page, and I am not sure how else to do it. I've been told that I can use a controller for the map page which has the information I need for each planet, and other controllers for other items I require global display for. I've also thought about storing each planet's data in a save file, using initWithCoder however there could be a boatload of files on the user's device? I really don't want to use a database, mainly because I would need to translate NSObjects and non-NSObjects like CGRects and CGPoints and Colors into/from SQL. I am open to other ideas on how to store and read game data to prevent using a singelton to store everything, everywhere. Thanks for your time.

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  • Microkernel architectural pattern and applicability for business applications

    - by Pangea
    We are in the business of building customizable web applications. We have the core team that provides what we call as the core platform (provides services like security, billing etc.) on top of which core products are built. These core products are industry specific solutions like telecom, utility etc. These core products are later used by other teams to build customer specific solutions in a particular industry. Until now we have a loose separation between platform and core product. The customer specific solutions are build by customizing 20-40% of the core offering and re-packaging. The core-platform and core products are released together as monolithic apps (ear). I am looking to improvise the current situation so that there is a cleaner separation on these 3. This allows us to have evolve each of these 3 separately etc. I've read through the Mircokernel architecture and kind of felt that I can take apply the principles in my context. But most of my reading about this pattern is always in the context of operating systems or application servers etc. I am wondering if there are any examples on how that pattern was used for architecting business applications. Or you could provide some insight on how to apply that pattern to my problem.

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  • Join the SOA and BPM Customer Insight Series

    - by Dain C. Hansen
    Summer is here! So put on your shades, kick back by the pool and watch the latest SOA and BPM customer insight series from Oracle. You’ll hear directly from some of Oracle’s most well respected customers across a range of deployments, industries, and use cases. You’ve heard us tell you the advantages of Oracle SOA and Oracle BPM. But this time, listen to what our customers are saying: See Rain Fletcher, VP of Application Development and Architecture at Choice Hotels, describe how they successfully made the transition from a complex legacy environment into a faster time-to-market shared services infrastructure as they implemented their event-driven Google API project. Listen to the County of San Joaquin, California discuss how they transformed to a services-oriented architecture and business process management platform to gain efficiency and greater visibility of mission critical information important to citizen public safety. Hear from Eaton, a global power management company, review innovative strategies for a successful application integration implementation, specifically the advantages of transitioning from TIBCO to using Oracle SOA and Oracle Fusion Applications.  Learn how Nets Denmark A/S implemented Oracle Unified Business Process Management Suite in just five months. Review the implementation overview from start to production, including integration with legacy systems. And finally, listen to Farmers Insurance share their SOA reference architecture as well as a timeline for how their services were deployed as well as the benefits for moving to an Oracle SOA-based application infrastructure.  Don’t miss the webcast series. Catch the first one on June 21st at 10AM PST with Rain Fletcher from Choice Hotels, and Bruce Tierney, Director Oracle SOA Suite. Register today!

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  • Ubuntu doesn't boot after adding a bootflag to the Windows partition

    - by Nils
    I have Ubuntu 10.10 installed on one (physical) hd and on the other one Windows. On both drives grub is installed to boot both operating systems. When I wanted to install SP1 for Win 7 I had to add a bootable flag to the partition from which Windows boots, otherwise the installation of SP1 does not work. I did so by booting into Ubuntu and using gparted to add this flag. After doing so the update for SP1 worked without any problems. When trying to boot back into Ubuntu grub complained that it couldn't find the kernel anymore! I tried to boot into a Ubuntu minimal cd and to restore grub using chroot, update-grub and grub-install which didn't work. I still had the problem that it was Unable to boot Ubuntu putting me in some minimal system called initramfs. It seems however that the uuid of the partitions changed. I guess this happened when I added the bootflag to the windows disk. Next thing I tried was to tell grub not to use the uuid for loading the kernel by uncommenting something in /etc/default/grub. Then I got the kernel booting but it suddenly stops (I guess when it is trying to mount the root file system) saying that the concerning uuid does not exist putting me into initramfs again. The strange thing is that there I coulnd't even manage to mount the root partition using /dev/sdb1 (on which it is in my case). I would be glad if there is a way to restore the system again without having to reinstall it.

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  • Interpreting Others' Source Code

    - by Maxpm
    Note: I am aware of this question. This question is a bit more specific and in-depth, however, focusing on reading the actual code rather than debugging it or asking the author. As a student in an introductory-level computer science class, my friends occasionally ask me to help them with their assignments. Programming is something I'm very proud of, so I'm always happy to oblige. However, I usually have difficulty interpreting their source code. Sometimes this is due to a strange or inconsistent style, sometimes it's due to strange design requirements specified in the assignment, and sometimes it's just due to my stupidity. In any case, I end up looking like an idiot staring at the screen for several minutes saying "Uh..." I usually check for the common errors first - missing semicolons or parentheses, using commas instead of extractor operators, etc. The trouble comes when that fails. I often can't step through with a debugger because it's a syntax error, and I often can't ask the author because he/she him/herself doesn't understand the design decisions. How do you typically read the source code of others? Do you read through the code from top-down, or do you follow each function as it's called? How do you know when to say "It's time to refactor?"

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  • C++11 Tidbits: access control under SFINAE conditions

    - by Paolo Carlini
    Lately I have been spending quite a bit of time on the SFINAE ("Substitution failure is not an error") features of C++, fixing and tweaking various bits of the GCC implementation. An important missing piece was the implementation of the resolution of DR 1170 which, in a nutshell, mandates that access checking is done as part of the substitution process. Consider: class C { typedef int type; }; template <class T, class = typename T::type> auto f(int) - char; template <class> auto f(...) -> char (&)[2]; static_assert (sizeof(f<C>(0)) == 2, "Ouch"); According to the resolution, the static_assert should not fire, and the snippet should compile successfully. The reason being that the first f overload must be removed from the candidate set because C::type is private to C. On the other hand, before the resolution of DR 1170, the expected behavior was for the first overload to remain in the candidate set, win over the second one, to eventually lead to an access control error (*). GCC mainline (would be 4.8) finally implements the DR, thus benefiting the many modern programming techniques heavily exploiting SFINAE, among which certainly the GNU C++ runtime library itself, which relies on it for the internals of <type_traits> and in several other places. Note that the resolution of the DR is active even in C++98 mode, not just in C++11 mode, because it turned out that the traditional behavior, as implemented in GCC, wasn't fully consistent in all the possible circumstances. (*) In practice, GCC didn't really implement this, the static_assert triggered instead.

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  • Reusable skill class structure

    - by Martino Wullems
    Hello, Pretty new to the whole game development scene, but I have experience in other branches of programming. Anyway, I was wondering what methods are used to implement a skill structure. I imagine a skill in itself would a class. I'm using actionscript 3 for this project btw. public class Skill { public var power:int; public var delay:int; public var cooldown:int; public function Attack(user:Mob, target:Mob) { } } } Each skill would extend the Skill class and add it's own functionality. public class Tackle extends Skill { public function Tackle(user:Mob, target:Mob) { super(user, target); executeAttack(); } private function executeAttack():void { //multiply user.strength with power etc //play attack animation } } } This where I get stuck. How do I termine which mobs has which skills? And which skill will they later be able to retrieve (by reaching a certain level etc). How does the player actually execute the skill and how is it determine if it hits. It's all very new to me so I have no idea where to begin. Any links would also be appreciated. Thanks in advance.

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  • Finding a way to simplify complex queries on legacy application

    - by glenatron
    I am working with an existing application built on Rails 3.1/MySql with much of the work taking place in a JavaScript interface, although the actual platforms are not tremendously relevant here, except in that they give context. The application is powerful, handles a reasonable amount of data and works well. As the number of customers using it and the complexity of the projects they create increases, however, we are starting to run into a few performance problems. As far as I can tell, the source of these problems is that the data represents a tree and it is very hard for ActiveRecord to deterministically know what data it should be retrieving. My model has many relationships like this: Project has_many Nodes has_many GlobalConditions Node has_one Parent has_many Nodes has_many WeightingFactors through NodeFactors has_many Tags through NodeTags GlobalCondition has_many Nodes ( referenced by Id, rather than replicating tree ) WeightingFactor has_many Nodes through NodeFactors Tag has_many Nodes through NodeTags The whole system has something in the region of thirty types which optionally hang off one or many nodes in the tree. My question is: What can I do to retrieve and construct this data faster? Having worked a lot with .Net, if I was in a similar situation there, I would look at building up a Stored Procedure to pull everything out of the database in one go but I would prefer to keep my logic in the application and from what I can tell it would be hard to take the queried data and build ActiveRecord objects from it without losing their integrity, which would cause more problems than it solves. It has also occurred to me that I could bunch the data up and send some of it across asynchronously, which would not improve performance but would improve the user perception of performance. However if sections of the data appeared after page load that could also be quite confusing. I am wondering whether it would be a useful strategy to make everything aware of it's parent project, so that one could pull all the records for that project and then build up the relationships later, but given the ubiquity of complex trees in day to day programming life I wouldn't be surprised if there were some better design patterns or standard approaches to this type of situation that I am not well versed in.

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  • Coherence Management with EM Cloud Control 12c –demo for partners

    - by JuergenKress
    For access to the Oracle demo systems please visit OPN and talk to your Partner Expert We are pleased to announce the availability of the Coherence Management demo that showcases some of the key capabilities of Management Pack for Oracle Coherence and JVM Diagnostics (licensed under WLS Management Pack EE and Management Pack for NonOracle MW). This demo specifically focuses on some of the performance management and configuration management solutions for Oracle Coherence. The demo flow showcases the key enhancements made in Enterprise Manager 12c release which includes new customizable performance summary, cache data management and configuration management. Demo Highlights The demo showcases the following capabilities. Centralized monitoring for enterprise wide Coherence deployments Drill down diagnostics Customizable performance views Monitoring performance trends Monitoring Caches, Nodes, Services, etc Performance and Log Alerts Real-time Java Diagnostics and memory leak analysis Cache Data Management Lifecycle management Provisioning Coherence on a new machine Starting nodes on machine where Coherence is already running Killing a node process Demo Instructions Go to the DSS website for Oracle Partners. On the Standard Demo Launchpad page, under the “Middleware Management” section, click on the link “EM Cloud Control 12c Coherence Management” (tagged as “NEW”). Specific demo launchpad page contains a link to the detailed demo script with instructions on how to show the demo. Read more on Community Events and post your comment 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: Coherence,Coherence demo,DSS,CAF,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • Coherence Management with EM Cloud Control 12c –demo for partners

    - by JuergenKress
    For access to the Oracle demo systems please visit OPN and talk to your Partner Expert We are pleased to announce the availability of the Coherence Management demo that showcases some of the key capabilities of Management Pack for Oracle Coherence and JVM Diagnostics (licensed under WLS Management Pack EE and Management Pack for NonOracle MW). This demo specifically focuses on some of the performance management and configuration management solutions for Oracle Coherence. The demo flow showcases the key enhancements made in Enterprise Manager 12c release which includes new customizable performance summary, cache data management and configuration management. Demo Highlights The demo showcases the following capabilities. Centralized monitoring for enterprise wide Coherence deployments Drill down diagnostics Customizable performance views Monitoring performance trends Monitoring Caches, Nodes, Services, etc Performance and Log Alerts Real-time Java Diagnostics and memory leak analysis Cache Data Management Lifecycle management Provisioning Coherence on a new machine Starting nodes on machine where Coherence is already running Killing a node process Demo Instructions Go to the DSS website for Oracle Partners. On the Standard Demo Launchpad page, under the “Middleware Management” section, click on the link “EM Cloud Control 12c Coherence Management” (tagged as “NEW”). Specific demo launchpad page contains a link to the detailed demo script with instructions on how to show the demo. Read more on Community Events and post your comment 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: Coherence,Coherence demo,DSS,CAF,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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