Search Results

Search found 11825 results on 473 pages for 'all tech stuff'.

Page 241/473 | < Previous Page | 237 238 239 240 241 242 243 244 245 246 247 248  | Next Page >

• DAO/Webservice Consumption in Web Application

  - by Gavin

  I am currently working on converting a "legacy" web-based (Coldfusion) application from single data source (MSSQL database) to multi-tier OOP. In my current system there is a read/write database with all the usual stuff and additional "read-only" databases that are exported daily/hourly from an Enterprise Resource Planning (ERP) system by SSIS jobs with business product/item and manufacturing/SCM planning data. The reason I have the opportunity and need to convert to multi-tier OOP is a newer more modern ERP system is being implemented business wide that will be a complete replacement. This newer ERP system offers several interfaces for third party applications like mine, from direct SQL access to either a dotNet web-service or a SOAP-like web-service. I have found several suitable frameworks I would be happy to use (Coldspring, FW/1) but I am not sure what design patterns apply to my data access object/component and how to manage the connection/session tokens, with this background, my question has the following three parts: Firstly I have concerns with moving from the relative safety of a SSIS job that protects me from downtime and speed of the ERP system to directly connecting with one of the web services which I note seem significantly slower than I expected (simple/small requests often take up to a whole second). Are there any design patterns I can investigate/use to cache/protect my data tier? It is my understanding data access objects (the component that connects directly with the web services and convert them into the data types I can then work with in my Domain Objects) should be singletons (and will act as an Adapter/Facade), am I correct? As part of the data access object I have to setup a connection by username/password (I could set up multiple users and/or connect multiple times with this) which responds with a session token that needs to be provided on every subsequent request. Do I do this once and share it across the whole application, do I setup a new "connection" for every user of my application and keep the token in their session scope (might quickly hit licensing limits), do I set the "connection" up per page request, or is there a design pattern I am missing that can manage multiple "connections" where a requests/access uses the first free "connection"? It is worth noting if the ERP system dies I will need to reset/invalidate all the connections and start from scratch, and depending on which web-service I use might need manually close the "connection/session"

  Read the article

• Kubuntu 11.04 bad experience, Gimp crashes and other bugs

  - by giowck

  I installed Kubuntu 11.04 64bit today. First let me expose some issues, this is not a rant, just some observations on Kubuntu 11.04 :) Flash doesn't work. The package "flashplugin-installer" was installed by rekonq. But still no flash. Additional Drivers (jockey-kde) doesn't show up automatically after first login. I tried to delete a large file (19,2 GB), an error appeared: "Please empty the trash first, no more space available" or something like that, but you know what? My trash was empty! (Then I found in Dolphin the settings to increment the max size of the trash). Amarok has no play/pause/forward/back buttons, only after changing settings to show those buttons on the top bar. GTK applications like ubuntu software center, inkscape... are in english, but my default language is "german". Only gimp allows to install the "de" language pack. The numblock turns off after each restart. In the KDE Control Center, the "remember last state" of numblock is set. But this is not working. I had some crashes: Nepomuk, Policy-kit, plasma-workspace and gimp. But now to the important stuff. I really need Gimp to work. After starting it, I get a crash: giowck@giowck-desktop:~$ gimp (gimp:1899): GLib-WARNING **: /build/buildd/glib2.0-2.28.6/./glib/goption.c:2132: ignoring no-arg, optional-arg or filename flags (8) on option of type 0 Speicherzugriffsfehler (in English: "Memory error") What can I do to run Gimp? Thanks

  Read the article

• Too sell or give for free

  - by QAH

  Hello everyone! I am currently making a game that I was originally planning to sell. It is a simple 2D arcade style game for the PC. I've seen many indie games become popular and generate revenue from advertisements, but the game itself remains free. I need some advice on whether or not I should sell my game, release it for free with advertisements, or ask for donations and keep the game free. I feel that my game is fun, but of course the graphics aren't tip top because I am a programmer, not an artist. I just take screenshots of 3D models I get from Turbosquid and crop around it to make a sprite. Also, and I could be very wrong about this, it seems that there are more legal issues surrounding selling a game than making it free and generating revenue from advertisement, or asking for donations. If I am wrong, someone please correct me. Also, I am very interested in generating some revenue for my work, but that isn't at the very top of my list. I am in my last year of high school, soon to be going to college, and I am going to major in computer science/software engineering. So I am trying to gain some preliminary experience at home by coding stuff every day. One way of getting this experience is by making this game. So what do you think? What route should I take? What has worked well with other indie games? Thanks in advance.

  Read the article

• Code maintenance: keeping a bad pattern when extending new code for being consistent or not ?

  - by Guillaume

  I have to extend an existing module of a project. I don't like the way it has been done (lots of anti-pattern involved, like copy/pasted code). I don't want to perform a complete refactor. Should I: create new methods using existing convention, even if I feel it wrong, to avoid confusion for the next maintainer and being consistent with the code base? or try to use what I feel better even if it is introducing another pattern in the code ? Precison edited after first answers: The existing code is not a mess. It is easy to follow and understand. BUT it is introducing lots of boilerplate code that can be avoided with good design (resulting code might become harder to follow then). In my current case it's a good old JDBC (spring template inboard) DAO module, but I have already encounter this dilemma and I'm seeking for other dev feedback. I don't want to refactor because I don't have time. And even with time it will be hard to justify that a whole perfectly working module needs refactoring. Refactoring cost will be heavier than its benefits. Remember: code is not messy or over-complex. I can not extract few methods there and introduce an abstract class here. It is more a flaw in the design (result of extreme 'Keep It Stupid Simple' I think) So the question can also be asked like that: You, as developer, do you prefer to maintain easy stupid boring code OR to have some helpers that will do the stupid boring code at your place ? Downside of the last possibility being that you'll have to learn some stuff and maybe you will have to maintain the easy stupid boring code too until a full refactoring is done)

  Read the article

• Nginx or Apache for a VPS?

  - by James

  I consider myself to be an inexperienced user/administrator when it comes to running my VPS. I can get by with a few CLI commands, I can set up Webmin and I can set up Yum repos, but beyond the very basic stuff, I'm out of my depth. So far, I'm running Apache. I don't know it particularly well, but I can get by with editing httpd.conf if I'm told what to edit. I've heard good things about Nginx and that it's not as resource-hungry as Apache. I'd like to give it a go, but I can't find any information about its suitability for administrators like me, with little experience of sysadmin or web server config. Webmin now has support for Nginx, so getting it installed and running probably won't be too much of a problem. What I'm wondering is, from a site administrator perspective, is running Nginx as transparent as running Apache? IE, at the moment, I can just throw up Wordpress and Drupal sites without having much to worry about or having to make any config changes to Apache. Would Nginx be as transparent?

  Read the article

• WP E Commerce Safe Mode restriction error [on hold]

  - by Mustafa Kamal

  I have my online shop, created with WP Ecommerce getting broken after I moved it to another server. I could be sure that the problem comes from WP Ecommerce because when I disable that plugin. Everything run as expected. This is the exact error message Warning: session_start() [function.session-start]: SAFE MODE Restriction in effect. The script whose uid is 515 is not allowed to access /tmp owned by uid 0 in /home/mikalu/public_html/wp-content/plugins/wp-e-commerce/wpsc-core/wpsc-constants.php on line 17 Fatal error: session_start() [<a href='function.session-start'>function.session-start</a>]: Failed to initialize storage module: files (path: ) in /home/mikalu/public_html/wp-content/plugins/wp-e-commerce/wpsc-core/wpsc-constants.php on line 17 I've tried to turn off safe mode on my php configuration. nothing happens. the error's still there. I thought it was some kind of permission issue, so I tried to change /tmp permission to 777. Nothing happens. I googled it some more and suspect it might have something to do with fastCGI configuration and stuff. Which I totally don't understand. My googling result mostly suggest me to consult the web hosting provider or even to move to another host. But in this case, I am the owner of the server (VPS with cPanel/WHM). And I don't have any idea how to solve this kind of problem.

  Read the article

• ArchBeat Link-o-Rama for 11/30/2011

  - by Bob Rhubart

  Coding - the new Latin | @BBCRoryCJ BBC Technology Correspondent Rory Cellan-Jones reports on why "the campaign to boost the teaching of computer skills - particularly coding - in schools is gathering force." BPM Business Value Patterns | SOA Partner Community Blog Juergen Kress shares the presentation he and Matthias Ziegler from Accenture delivered at the SOA & BPM Integration Days event in Germany in October. Coherence 3.7.1 Resources Busy blogger Juergen Kress shares links to screencasts and other resources for those interested in Oracle Coherence 3.7.1. OBIEE 11.1.1 - Introduction to OBIEE 11g Full Sample App "The OBIEE 11g Full Sample App (FSA) is a comprehensive collection of examples designed to demonstrate the latest Oracle BIEE 11g capabilities and design best practices." Solaris 11 Customer Maintenance Lifecycle | Gerry Haskins Gerry Haskins launches a new blog devoted to Solaris "policies, best practices, clarifications, and lots of other stuff." Harnessing Business Events for Predictive Decision Making - part 1 / 3 | Sanjeev Sharma "Data growth is outpacing storage capacity by a factor of two and computing power is still very much bounded by Moore's Law, doubling only every 18 months," says Sanjeev Sharma. The Latest Research from the SEI | Douglas C. SchmidtSchmidt shares information on several recently published Software Engineering Institute (SEI) technical reports that "highlight the latest work of SEI technologists in Agile methods, insider threat,the SMART Grid Maturity Model, acquisition, and CMMI." Tiger/Line Shape Files and Oracle | Bradley D. Brown "Have you ever needed to load an ESRI "shape file" and wondered if that's an easy effort or a difficult effort? I know I have and I assumed that it was a pretty difficult effort. However, I learned today that's actually pretty easy!" -- Oracle ACE Director Bradley Brown of TUSC. Webcast: Enterprise Clouds with Oracle VM Tuesday, December 6, 2011, 9:00 am PT / Noon ET. Featuring Adam Hawley (Senior Director of Product Management, Oracle) and Dan Herrup (Principal Systems Engineer, Oracle Corporate Citizenship). SOA Made Simple; Architects in AZ; Cloud Migration Introduction This week on the Architect Home Page on OTN.

  Read the article

• Is browser fingerprinting a viable technique for identifying anonymous users?

  - by SMrF

  Is browser fingerprinting a sufficient method for uniquely identifying anonymous users? What if you incorporate biometric data like mouse gestures or typing patterns? The other day I ran into the Panopticlick experiment EFF is running on browser fingerprints. Of course I immediately thought of the privacy repercussions and how it could be used for evil. But on the other hand, this could be used for great good and, at the very least, it's a tempting problem to work on. While researching the topic I found a few companies using browser fingerprinting to attack fraud. And after sending out a few emails I can confirm at least one major dating site is using browser fingerprinting as but one mechanism to detect fake accounts. (Note: They have found it's not unique enough to act as an identity when scaling up to millions of users. But, my programmer brain doesn't want to believe them). Here is one company using browser fingerprints for fraud detection and prevention: http://www.bluecava.com/ Here is a pretty comprehensive list of stuff you can use as unique identifiers in a browser: http://browserspy.dk/

  Read the article

• Link to article on website libraries

  - by acidzombie24

  I just started another website and it has taken me 30mins to copy/paste my other website and delete stuff because I don't have a template. Theres lots of features I copied over that I haven't seen in libraries/templates. But I don't really know any libraries/templates. This site is ASP.NET. Some things I have is a string.format that escapes strings for HTML (so <hi> is text instead of a tag). Other features are adding or removing items in the url query, a class to pass in a ASP.NET error and log or convert it into a row in a db (I know about elmah but during development on my last site it wasn't Mono compatible), a mini AJAX library for success/fail/redirect/etc, a class to pass in a ASP.NET error and log or convert it into a row in a db and anything else I would use in every site. I don't like my (library) design because I wasn't expecting to do more then 2-3 websites and I am on my 5th. I don't know proper ASP.NET either so what is an article that explains how to make a great library/template for websites?

  Read the article

• Is paper indispensable in a programmer's everyday work?

  - by rwong

  As a programmer who work in a company whose vision is to make paperless office possible, is there any way I can work effectively while using less paper? I can list at least several kinds of papers I use quite often: Paper notebook, on which I do most of the pre-coding design work and ideas Books Temporary printouts of source code, though not so often (in color, with a 6 point font at 600 DPI) Sticky note, to remind myself of things that should be taken care of within a few days On the other hand, I also use a wiki and an office text editor. Once a while I would use a diagramming software to make a few flowcharts. Deeper questions: Is there a relationship between paper use and productivity? How can programmers help save the trees? Is paperless software development fundamentally different from paperless office? Related questions: Do you ever write code with pen and paper, and should we do it more often? What physical tools do you find useful to work as a programmer? What things are essential on a programmer's desk? Stuff every programmer needs while working Additional info, if it helps: Everyone has dual monitors. We have decent project management and issue tracking software (both web-based). Please be constructive. In particular, please give your answer to your peer programmers who wish to be flexible and are willing to change working style in order to become more productive as well as meeting certain their own personal values. Edited: I removed the company's view because it appears to be too flamebait. If you need to see my original words, go to the edit history. Deleted: Doxygen and whiteboard. Reason: disregarding my personal experience with these great tools, we never had to print out anything as a consequence of using/not using them. To see my original words, go to the edit history.

  Read the article

• Memory concerns while plotting escape from DLL Hell in Delphi

  - by Peter Turner

  I work on a program with about 50 DLLs that are loaded from one executable, it's an old organically grown program where the only rationale for creating a new DLL is that one previously didn't exist to fill a given need. (and namespaces didn't exist in Delphi so it never crossed our mind to make dll1.main.pas, dll2.main.pas or something even more unique) What we want to do is consolidate all these DLLs into one executable, since none of them are used out of the program, there shouldn't be much of a problem. The concern my boss has is that if we did this, the memory overhead for terminal server clients would go through the roof. So, I've stepped through enough initialization code to know that lots of stuff is done every time a DLL is loaded in to memory, but say I've got a project with about 4000 files, and 50 dlls, 10 of which are probably utilized by any one user in any one session of the program. The 50 dlls are about 2/3rds form files, if not more, but beyond that there's not a lot of other resources being loaded (only a few embedded pictures, icons, cursors, etc..). If I loaded all these files in to memory, how much memory is used per unit? how much is used per class? How do I keep the overhead down? and what is the biggest project one can reasonably expect to build with Delphi? This tidbit won't help answering, but I think it might clarify what my boss is worried about, we currently start our program at about 18megs, normal working conditions are usually less than 40 megs, he thinks it could climb as high as 120 megs.

  Read the article

• Is it useful to unit test methods where the only logic is guards?

  - by Vaccano

  Say I have a method like this: public void OrderNewWidget(Widget widget) { if ((widget.PartNumber > 0) && (widget.PartAvailable)) { WigdetOrderingService.OrderNewWidgetAsync(widget.PartNumber); } } I have several such methods in my code (the front half to an async Web Service call). I am debating if it is useful to get them covered with unit tests. Yes there is logic here, but it is only guard logic. (Meaning I make sure I have the stuff I need before I allow the web service call to happen.) Part of me says "sure you can unit test them, but it is not worth the time" (I am on a project that is already behind schedule). But the other side of me says, if you don't unit test them, and someone changes the Guards, then there could be problems. But the first part of me says back, if someone changes the guards, then you are just making more work for them (because now they have to change the guards and the unit tests for the guards). For example, if my service assumes responsibility to check for Widget availability then I may not want that guard any more. If it is under unit test, I have to change two places now. I see pros and cons in both ways. So I thought I would ask what others have done.

  Read the article

• Stackify Gives Devs a Crack at the Production Server

  - by Matt Watson

  Originally published on SDTimes.com on 7/9/2012 by David Rubinstein.It was one of those interviews where you get finished talking about a company’s product, and you wonder aloud, “Well, THAT makes sense! Why hasn’t anyone thought of that before?” Matt Watson, CEO of Kansas City, Mo.-based startup Stackify, was telling me that the 10-person company is getting ready to launch its product in August (it’s in beta now) that will give developers an app-centric look into production servers so they can support and troubleshoot apps and fix bugs. Of course, this hasn’t happened in the past because of the security concerns of IT administrators, and a decided lack of expertise on the part of developers. Stackify installs on a server and acts like a proxy for developers, collecting data about the environment, discovering all the applications, scanning for config file changes, and doing server monitoring. “We become the central point that developers can see everything they need to know about their applications,” he said. “Developers can look at the files that are deployed, and query databases in a safe way.”  In his words:“The big thing we’re hoping is just giving them (developers) visibility. Most companies want to hire the junior developers that they pay $50,000 a year right out of college to do application support and troubleshooting and fix bugs, but those people don’t have access to production servers to troubleshoot. It becomes very difficult for them to do their job, so they end up spending all of their day bugging the senior developers, the managers or the system administrators to track down this stuff, which creates a huge bottleneck. And so what we can do is give that visibility to those lower-level people so that they can do this work and free up the higher-level people so they can be working on the next big thing.”Stackify itself might just prove to be the next big thing.

  Read the article

• Rendering large and high poly meshes

  - by Aurus

  Consider an huge terrain that has a lot polygons, to render this terrain I thought of following techniques: Using height-map instead of raw meshes: Yes, but I want to create a lot of caves and stuff that simply wont work with height-maps. Using voxels: Yes, but I think that this would be to much since I don't even want to support changing terrain.. Split into multiple chunks and do some sort of LOD with the mesh: Yes, but how would I do that? Tessellation usually creates more detail not less. Precompute the same mesh in lower poly version (like Mudbox does) and depending on the distance it renders one of these meshes: Graphic memory is limited and uploading only the chunks won't solve that problem since the traffic would be too high. IMO the last one sounds really good, but imagine the following process: Upload and render the chunks depending on the current player position. [No problem] Player will walk straight forward Now we maybe have to change on of the low poly chunk with the high poly one So, Remove the low poly chunk and load the high poly chunk [Already to much traffic here, I think] I am not very experienced in graphic programming and maybe the upper process is totally okay but somehow I think it is too much. And how about the disk space it would require.. I think 3 kind of levels would be fine but isn't that also too much? (I am using OpenGL but I don't think that this is important)

  Read the article

• MyPaint is an Open-Source Graphics App for Digital Painters

  - by Asian Angel

  Are you looking for a terrific graphics app to use for original painting and artwork creation on your computer? Whether it is for you or the kids, MyPaint is an app that you should definitely have on hand for when those artistic moods come along. For our example we chose to install MyPaint on Ubuntu 10.10…you can easily find it in the Ubuntu Software Center by doing a quick search. Once you have it installed, all that is left to do is decide if you want to add additional brushes (link provided below) and then start having fun creating your next work of art. Here are some of MyPaint’s wonderful features: Exists for several platforms (Linux, Windows, and Mac OS X) Supports pressure sensitive graphics tablets Extensive brush creation and configuration options Unlimited canvas (you never have to resize) Basic layer support Comes with a large brush collection including charcoal and ink to emulate real media MyPaint is fun to use and can quickly become very addicting as you experiment during the creation process! Links MyPaint Homepage Download Additional Brushes for MyPaint Download the GIMP Plugin for the OpenRaster File Format Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines MyPaint is an Open-Source Graphics App for Digital Painters Can the Birds and Pigs Really Be Friends in the End? [Angry Birds Video] Add the 2D Version of the New Unity Interface to Ubuntu 10.10 and 11.04 MightyMintyBoost Is a 3-in-1 Gadget Charger Watson Ties Against Human Jeopardy Opponents Peaceful Tropical Cavern Wallpaper

  Read the article

• How to number nested ordered lists.

  - by Wes

  Is there any way through CSS to style nested ordered lists to display sub numbers? The idea is similar to using heading levels. However what I'd really like to see is the following. Note each of these subsections has text not just a title. This isn't a real example just some organisational stuff. Now I know I can use <h1>-<h6> but nested lists would be much clearer and allow for different indentation styling. Also it would be symentically correct. Note I don't think that <h1>-<h6> are correct in many ways as the name doesn't apply to the whole section. 1 Introduction. 1.1 Scope Blah Blah Blah Blah Blah Blah 1.2 Purpose Blah Blah Blah Blah Blah Blah 2 Cars Blah Blah Blah Blah Blah Blah 2.1 engines sub Blah Blah Blah sub Blah Blah Blah 2.2 Wheels ... ... 2.10.21 hub caps sub-sub Blah Blah Blah sub-sub Blah Blah Blah 2.10.21.1 hub cap paint sub-sub-sub Blah Blah Blah sub-sub-sub Blah Blah Blah 3 Planes 3.1 Commercial Airlines. ... ... 212 Glossary

  Read the article

• What is the best way to code the XNA Game Server for FPS game?

  - by AgentFire

  I'm writing a FPS XNA game. It gonna be multiplayer so I came up with following: I'm making two different assemblies — one for the game logic and the second for drawing it and the game irrelevant stuff (like rocket trails). The type of the connection is client-server (not peer-to-peer), so every client at first connects to the server and then the game begins. I'm completly decided to use XNA.Framework.Game class for the clients to run their game in window (or fullscreen) and the GameComponent/DrawableGameComponent classes to store the game objects and update&draw them on each frame. Next, I want to get the answer to the question: What should I do on the server side? I got few options: Create my own Game class on the server, which will process all the game logic (only, no graphics). The reason why I am not using the standart Game class is when I call Game.Run() the white window appears and I cant figure out how to get rid of it. Use somehow the original XNA's Game class, which is already has the GameComponent collection and Update event (60 times per second, just what I need). UPDATE: I got more questions: First, what socket mode should I use? TCP or UDP? And how to actually let the client know that this packet is meant to be processed after that one? Second, if I is going to use exacly GameComponent class for the game objects which is stored and process on the server, how to make them to be drawn on the client? Inherit them (while they are combined to an assembly)? Something else?

  Read the article

• Choosing between PHP and Java

  - by user996459

  I've recently started University, studying Computing and IT. My Uni focuses on Java. My study will consist of mathematics, 'boring' IT related stuff and several Java units such as: -Software development with Java, -Object-oriented Java programming, -Relational databases: theory and practice (using Java), -Developing concurrent distributed systems (using Java), -Software engineering with objects (using Java). I'm trying to determine whenever I should focus on Java and self study it in my free time so that I can actually learn and become a competent Java programmer by the time I graduate, or, only do enough Java to get the degree but in my free time self study PHP and related web technologies. Job market in my area appears to be balanced for the two, salary and availability wise. Regardless of which patch I'd take getting a job should not be a problem however Java does seem to pay almost insignificantly more. In terms of my interest and career expectations, I don't have anything specific planned. I very much enjoy writing code but I don't really care what kind. So far I equally enjoyed writing C, AutoIT, vb.net, PHP and even Java. Basically, I'm happy as long as I get to type in code (be it low level programming or web back-end scripting). So the question really is, would my Uni and their Java focus profit me should I choose PHP? Or should I buy what my university is selling and stick to Java like a fly sticks to poop...? Apologies for cryptic writing, still learning English

  Read the article

• Code Measuring and Metrics Tools?

  - by David

  I'm in the process of setting up a build server for personal projects. This server will handle all the normal CI stuff, including running large suites of tests (unit, integration, automated UI). While I'm working out the kinks for including code coverage output with MSTest, it occurs to me that there may be lots of tools out there which give me additional metrics other than just code coverage. FxCop comes to mind as an example. Though I'm sure there are others. Anything that can generate useful reportable data and metrics would be good. Whether it's class dependency charts (looking for Law of Demeter violations, for example), analyses of the uses of classes/functions (looking for a function that isn't used in the system other than just the tests, for example), and so on. I'm not sure the right way to formulate the question, since polling questions or "What's your favorite code analysis tool" aren't very good. But I'm essentially just looking for recommendations on what metrics to gather and the tools that can gather them. The eventual vision for something like this is to have the CI server run a bunch of automated tests and analysis tools and track performance metrics over time. Imagine a dashboard full of graphs plotting these metrics over time. The lines should all relatively be at an equilibrium, and if one starts to stray toward the negative then it's an early indication of problems with the code. In the age old struggle to quantify code quality with management, this sounds like a potentially helpful means of doing just that.

  Read the article

• MightyMintyBoost Is a 3-in-1 Gadget Charger

  - by ETC

  If you’re looking for a versatile battery booster, this DIY 3-in-1 solar/usb/wall current charger known as the MightyMintyBoost will top of your phone, mp3 player, and other gadgets with ease. Instructables user Honus didn’t just build the MightMintyBoost to geek out and show off his electronics project skills (although it’s certainly a nifty little project to do so), he’s serious about solar power and the impact clean energy has: Apple has sold over 30 million iPodTouch/iPhone units- imagine charging all of them via solar power…. If every iPhone/iPodTouch sold was fully charged every day (averaging the battery capacity) via solar power instead of fossil fuel power we would save approximately 50.644gWh of energy, roughly equivalent to 75,965,625 lbs. of CO2 in the atmosphere per year. Granted that’s a best case scenario (assuming you can get enough sunlight per day and approximately 1.5 lbs. CO2 produced per kWh used.) Of course, that doesn’t even figure in all the other iPods, cell phones, PDAs, microcontrollers (I use it to power my Arduino projects) and other USB devices that can be powered by this charger- one little solar cell charger may not seem like it can make a difference but add all those millions of devices together and that’s a lot of energy! His MightyMintyBoost is a battery booster for devices that can charge via USB and it accepts incoming current from the solar panel on top (or, on cloudy days can be charged via a wall charger or the USB port on your computer). Hit up the link below to see his full build guide and create your own MightyMintyBoost. MightyMintyBoost [Instructables] Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines MyPaint is an Open-Source Graphics App for Digital Painters Can the Birds and Pigs Really Be Friends in the End? [Angry Birds Video] Add the 2D Version of the New Unity Interface to Ubuntu 10.10 and 11.04 MightyMintyBoost Is a 3-in-1 Gadget Charger Watson Ties Against Human Jeopardy Opponents Peaceful Tropical Cavern Wallpaper

  Read the article

• How best to implement HTML5 support for my validation library

  - by Vivin Paliath

  I have created an annotation-based validation library called regula. There seems to be some amount of interest around the framework and the next thing I'd like to do is to support HTML5 validation. Originally I figured that I would check to see if the browser supported the HTML5 validation that has been specified and to either emulate or delegate to built-in regula equivalents. This is trivial for things like required, but once you start getting into the date-validation, it gets tricky (date widgets, localization, etc.). So I have a few options in front of me: Full HTML5 Shim along with widgets (for date stuff etc.): I feel like this is overkill and essentially reinventing the wheel since this is already covered by things like modernizr. Use HTML5 validation if available (either native, or provided by shim; otherwise ignore): What this means is that if HTML5 validation is available (natively or through a shim) I will use it, otherwise I will ignore it. I'm leaning towards the latter since currently if someone wants to use HTML5 validation, they will most probably require a shim since not all browsers support HTML5. Which option do you think is better?

  Read the article

• Recurring lsb-release and Software Center glitch after installing MATE

  - by infomorph

  I just recently upgraded to Ubuntu 11.10. Not a fan of Unity, so I decided to try out the MATE desktop from Linux Mint. I added the Mint repository, grabbed and installed the MATE packages, and got rid of the repo so I wouldn't be downloading any other Mint packages. I did have some glitches with the packages (missing dependency stuff), but I fixed it. As other users have reported, installing MATE temporarily breaks the Ubuntu Software Center because lsb_release shows the machine as Linux Mint rather than Ubuntu. I can fix it as noted in this answer by editing /etc/*release and /etc/*issue. Problem is, this only works until I reboot the machine. Every time I reboot, /etc/lsb-release and /etc/issue revert to Linux Mint, breaking Software Center again until I edit them, again. Can anyone help me pin down what keeps changing these files? Much appreciated, thanks. Rephrasing the crux of the problem: where do /etc/lsb-release and /etc/issue get their info from? What would cause them to be revised on reboot?

  Read the article

• Versioning and Continuous Integration with project settings files

  - by Michael Stephenson

  I came across something which was a bit of a pain in the bottom the other week. Our scenario was that we had implemented a helper style assembly which had some custom configuration implemented through the project settings. I'm sure most of you are familiar with this where you end up with a settings file which is viewable through the C# project file and you can configure some basic settings. The settings are embedded in the assembly during compilation to be part of a DefaultValue attribute. You have the ability to override the settings by adding information to your app.config and if the app.config doesn’t override the settings then the embedded default is used. All normal C# stuff so far… Where our pain started was when we implement Continuous Integration and we wanted to version all of this from our build. What I was finding was that the assembly was versioned fine but the embedded default value was maintaining the non CI build version number. I ended up getting this to work by using a build task to change the version numbers in the following files: App.config Settings.settings Settings.designer.cs I think I probably could have got away with just the settings.designer.cs, but wanted to keep them all consistent incase we had to look at the code on the build server for some reason. I think the reason this was painful was because the settings.designer.cs is only updated through Visual Studio and it writes out the code to this file including the DefaultValue attribute when the project is saved rather than as part of the compilation process. The compile just compiles the already existing C# file. As I said we got it working, and it was a bit of a pain. If anyone has a better solution for this I'd love to hear it

  Read the article

• Session management error: None of the authentication protocols specified are supported

  - by JBWhitmore

  The title is the first error that has sent me on a mission to fix things. Motivation: I was trying to install the new Enthought Python Distribution -- when the error above first showed up. The install finished -- and looked like there were a few more times it flagged dcopserver problems: Please check that "dcopserver" program is running! Could not read network connection list: ~/home/user/.DCOPserver_host__0 When running ipython from the distribution, it claims that readline (the ability to up arrow in history or tab-complete) is not available for my system. It is though -- if I run the ipython that's sitting in /usr/bin/ipython all readline features work perfectly. So, I tried to fix the install by trying to fix what I thought could be causing the problems. Bad things that are happening that I want to be fixed: When restarting I get the error: Could not update ICEauthority file /home/username/.ICEauthority. ipython readline doesn't work with Enthought's ipython Things I have tried: changed the owner of my ~/.ICEauthority to be me. changed the owner of home directory (and all nested files and folders) to be me double checked that /var/lib/gdm was owned by Gnome (yep) attempted to reinstall DCOP, kbuildsycoca stuff (fail) I've removed nautilus; rebooted; reinstalled; rebooted; removed ubuntu-desktop; rebooted; reinstalled; rebooted. Any suggestions on how to fix the Bad Things that are happening would be greatly appreciated! Computer: Ubuntu 10.04 x86

  Read the article

• Which of these design patterns is superior?

  - by durron597

  I find I tend to design class structures where several subclasses have nearly identical functionality, but one piece of it is different. So I write nearly all the code in the abstract class, and then create several subclasses to do the one different thing. Does this pattern have a name? Is this the best way for this sort of scenario? Option 1: public interface TaxCalc { String calcTaxes(); } public abstract class AbstractTaxCalc implements TaxCalc { // most constructors and fields are here public double calcTaxes(UserFinancials data) { // code double diffNumber = getNumber(data); // more code } abstract protected double getNumber(UserFinancials data); protected double initialTaxes(double grossIncome) { // code return initialNumber; } } public class SimpleTaxCalc extends AbstractCalc { protected double getNumber(UserFinancials data) { double temp = intialCalc(data.getGrossIncome()); // do other stuff return temp; } } public class FancyTaxCalc extends AbstractTaxCalc { protected double getNumber(UserFinancials data) { int temp = initialCalc(data.getGrossIncome()); // Do fancier math return temp; } } Option 2: This version is more like the Strategy pattern, and should be able to do essentially the same sorts of tasks. public class TaxCalcImpl implements TaxCalc { private final TaxMath worker; public DummyImpl(TaxMath worker) { this.worker = worker; } public double calcTaxes(UserFinancials data) { // code double analyzedDouble = initialNumber; int diffNumber = worker.getNumber(data, initialNumber); // more code } protected int initialTaxes(double grossIncome) { // code return initialNumber; } } public interface TaxMath { double getNumber(UserFinancials data, double initial); } Then I could do: TaxCalc dum = new TaxCalcImpl(new TaxMath() { @Override public double getNumber(UserFinancials data, double initial) { double temp = data.getGrossIncome(); // do math return temp; }); And I could make specific implementations of TaxMath for things I use a lot, or I could make a stateless singleton for certain kinds of workers I use a lot. So the question I'm asking is: Which of these patterns is superior, when, and why? Or, alternately, is there an even better third option?

  Read the article

< Previous Page | 237 238 239 240 241 242 243 244 245 246 247 248  | Next Page >