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• Blogger : refonte en profondeur de la plateforme de blogs de Google, la nouvelle interface sera développée avec Google Web Toolkit

  Google annonce une refonte en profondeur de la plateforme Blogger Sa nouvelle interface sera développée avec Google Web Toolkit Blogger, le célèbre service de publication Web racheté par Google en 2003, est sur le point d'avoir une refonte complète d'après son chef de produit Chang Kim. Il s'agit du changement d'interface le plus important de l'histoire du sixième plus grand site au monde qui s'enorgueillit de ses 400 millions de lecteurs et de ses 500 milliards de mots publiés, répartis sur un demi-milliard de billets de blog depuis la création du service. La nouvelle génération d'interface utilisateur de l'éditeur de billet et du tableau de bord (dashboard) de l'o...

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• Is it best to try to work at a company where your software directly makes the company money?

  - by Ryan Hayes

  I was told once that the best place to work as a developer is a company where the software you write is what makes the company money, whether it be software production or software services like consulting. This is opposed to a company where the software you write is just to support some other part of the business that makes the money, like manufacturing or finance. I know there are always exceptions, but in general, are employees treated better if they are on the front lines of profit generation, as opposed to being just another cost center? cost center (n.) - A cost center is part of an organization that does not produce direct profit and adds to the cost of running a company. Examples of cost centers include research and development departments, marketing departments, help desks and customer service/contact centers.

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• How to model a many to many from a DDD perspective in UML?

  - by JD01

  I have a two entity objects Site and Customer where there is a many to many relationship. I have read you try not to model this in DDD as it is in the data model and go for a unidirectional flow. If I wanted to show this in UML, would I show it as it is in the data model: Site * ----->*Customer but the direction arrow gives the flow? or as following Site ----->*Customer But then this would imply that Customer can only go in one site.

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• What actions should I not rely on the packaged functionality of my language for?

  - by David Peterman

  While talking with one of my coworkers, he was talking about the issues the language we used had with encryption/decryption and said that a developer should always salt their own hashes. Another example I can think of is the mysql_real_escape_string in PHP that programmers use to sanitize input data. I've heard many times that a developer should sanitize the data themselves. My question is what things should a developer always do on their own, for whatever reason, and not rely on the standard libraries packaged with a language for it?

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• Do search engines crawl PDFs and if so are there any rules to follow when making them

  - by RandomBen

  The website I am working on has a few hundred PDFs in it. I don't think I have ever seen any of them come back in a search but there are linked to directly from out site. They are also full of keywords because they are product documents. Is there anything special we need to do to get Google or other search engines to crawl them? Is there any hard and fast rules for making PDFs to help Google like them more? For instance should I run them through ghostscript to clean up broken PDF tags that Adobe creates during generation?

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• You do not appear to be using the NVIDIA X driver

  - by Vishal shekhar

  my laptop has nvidia GT540m yesterday i install nvidia-current after updating fromsudo apt-add-repository ppa:ubuntu-x-swat/x-updates then i write sudo nvidia-xconfig and then reboot my desktop visual effect changes and it look good like nvidia is working but still glx i not working and nvidia-setting tells me that You do not appear to be using the NVIDIA X driver my dkms status is nvidia-current, 304.43, 3.2.0-30-generic-pae, i686: installed lspci |grep VGA output : 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev a1) also i can not login to my admin account but when i login to standard user or guest it works but still NVIDIA X driver is not working can any one suggest something so that NVIDIA X Driver start working as i seen many forum but none worked for me earlier i tried nvidia-173 ,nvidia-current(before x-swat/updates reprository) but none works for me

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• Intel prévoit de lancer des smartphones tournant sous Windows 8, contrairement aux voeux de Microsoft

  Intel prévoit de lancer des smartphones tournant sous Windows 8, contrairement aux voeux de Microsoft Juste après avoir annoncé ses profits records pour 2010, Intel a donné quelques informations sur son futur, et une partie de celui-ci sera lié à Microsoft. En effet, Paul Otellini (CEO de la compagnie) a réagit au portage de la prochaine génération de Windows sur la plateforme ARM, action dans laquelle il perçoit des avantages pour sa propre société. "Le plus pour Intel, c'est qu'avec l'unification de leurs systèmes d'exploitation, nous avons désormais pour la première fois avoir un OS tactile pour tablettes compatible avec nos produits. Nous pourrons insérer nos processeurs low-power tournant sous Windows 8 dans des téléphone...

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• If an app runs well on iPhone 3GS with iOS 5.1, how to know that it runs well on iOS 4.3? [closed]

  - by ????

  I bought an iPhone 3GS just to test backward compatibility of apps that I developed, but it arrived preinstalled with iOS 5.1. So even if an app runs well on iPhone 3GS and iOS 5.1 with its hardware limitation, how can we tell that it runs well even on iPhone 3GS with iOS 4.3? Will it actually be better to install iOS 4.3 on the phone so that we know even the older iOS can support it, so the newer iOS will work well supposedly? Or is there a need to buy yet another iPhone 3GS and install 4.3 on one and 5.1 on the other? (my assumption is that if we set the app's build target iOS to 4.3, the iPhone 3G won't be able to install it, because iPhone 3G only runs iOS up to 4.2. So the target device is 3GS but not earlier. But it will exclude iPod Touch 2nd Generation as well because they also can only support iOS up to 4.2 only)

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• Sybase IQ 15.4 annoncé : Sybase parie sur Hadoop et MapReduce, et défie sa maison mère ?

  Sybase IQ 15.4 annoncé pour fin novembre Sybase veut repousser les limites du Big Data avec Hadoop et MapReduce Alors que la grand messe annuelle de SAP, le SAPPHIRE NOW, battait son plein, la nouvelle filiale de l'éditeur allemand Sybase a annoncé en totale indépendance la sortie de Sybase IQ 15.4, son serveur analytique haute performance structuré en colonnes pour gérer les "big data". Alors que de son côté SAP met en avant HANA, sa nouvelle technologie de mise en cache des données (ou "In-Memory Computing") pour accélérer la vitesse de traite...

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• Nokia aurait abandonné le développement de son Smartphone sous MeeGo et se serait allié à Microsoft

  Nokia aurait abandonné le développement de son Smartphone sous MeeGo et se serait allié à Microsoft Les rumeurs ne font que s'enchainer sur le net concernant l'avenir de l'OS mobile de Nokia MeeGo, depuis la publication d'un memo interne expédié à tous les employés de la firme par son PDG Stephen Elop. Dans ce memo le PDG de Nokia fait une comparaison extrême en présentant sa firme comme étant une entreprise sur une plate-forme pétrolière en flamme, avant de conclure que des changements radicaux de comportement doivent être effectués. Elop fait un constat plutôt mitigé de la situation actuelle de la firme « La première génération d'iPhone est sortie en 2007, et nous n'av...

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• Spicing Up Your Web Services with XSLT

  The first thirteen parts of this series introduced some of the many features available within the IBM Data Studio integrated development environment (IDE) that's available for use with the IBM data servers. This installment explains how to apply Extensible Stylesheet Language Transformations (XSLT) to your Web services.

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• What is the canonical resource on multi-tenancy web applications using ruby + rails

  - by AlexC

  What is the canonical resource on multi-tenancy web applications using ruby + rails. There are a number of ways to develop rails apps using cloud capabilities with real elastic properties but there seems to be a lack of clarity with how to achieve multitenancy, specifically at the model / data level. Is there a canonical resource on options to developing multitenancy rails applications with the required characteristics of data seperation, security, concurrency and contention required by an enterprise level cloud application.

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• Assessing Relative Maintainability

  - by João Bragança

  We (a contractor, actually) are implementing an off the shelf system to replace a legacy homegrown system for the core domain of the company (designing widgets). Unfortunately both systems will have to run concurrently for some time, as the product just isn't ready yet. Also, the decision was made to only migrate some of the widgets from the legacy system, based on date of last sale activity. Later on a new requirement came down: certain people in the company, most of them outside of the widget development context, want to search all widgets. The search results screen has 3 pieces of data: a GUID, a human readable id that is searchable, and a brief description (may need to be searchable in the future). In the widget details, there will be multiple screens. These screens align very well along SOA / bounded context lines - a screen for marketing data, a screen for sales history, etc. UML ahead! I am probably using the wrong kind of arrows here so please forgive me. The current solution - which is not in production yet - is something like the following: Both systems will be queried and the controller will merge the results. The new system has its own proprietary query language (we've alleviated this a bit with a LINQ provider). It also puts a lot of data on the wire. 15 search results typically run about 60k of unintelligible SOAP-wrapped xml. So I would prefer to avoid querying this system directly. These two systems publish events to help us integrate with other systems, mainly an ERP system. One of these events contains all the data necessary for the search screen. I proposed the following alternative: However I am being told that 'adding another database' will create more maintenance down the road. However, I believe this to be false, as I had to add a relatively simple feature that took several hours longer than anticipated because of this merging code. I want to get a feel for which system is more maintainable in the long run. I personally have not had the burden of maintaining any large system. I want something more than my gut. Specifically I'd like to know if having more, specialized physical databases is more or less maintainable than having less larger physical databases.

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• glx not working, optirun works, gnome in fallback mode

  - by user26766

  It all started when I installed nvidia's own driver. Uninstalling it and reverting back to nvidia-current didn't solve the problem, so I have been playing with this for a while. Now nvidia-current seems to be functional. It seems glx support is missing, and my intel graphics is not responding. gnome loads only in fallback mode. Here are some outputs: glxinfo name of display: :0.0 Error: couldn't find RGB GLX visual or fbconfig glxgears Error: couldn't get an RGB, Double-buffered visual optirun glxgears works fine lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev ff) how can I fix this? thanks,

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• What the best way to achieve RPO of zero and lowest possible RTO (less than 15 minutes) with SQL 2008 R2?

  - by Adrian Hope-Bailie

  We are running a payments (EFT transaction processing) application which is processing high volumes of transactions 24/7 and are currently investigating a better way of doing DB replication to our disaster recovery site. Our current and previous strategies have included using both DoubleTake and Redgate to replicate data to a warm stand-by. DoubleTake is the supported solution from the payments software vendor however their (DoubleTake's) support in South Africa is very poor. We had a few issues and simply couldn't ever resolve them so we had to give up on DoubleTake. We have been using Redgate to manually read the data from the primary site (via queries) and write to the DR site but this is: A bad solution Getting the software vendor hot and bothered whenever we have support issues as it has a tendency to interfere with the payment application which is very DB intensive. We recently upgraded the whole system to run on SQL 2008 R2 Enterprise which means we should probably be looking at using some of the built-in replication features. The server has 2 fairly large databases with a mixture of tables containing highly volatile transactional data and pretty static configuration data. Replication would be done over a WAN link to a separate physical site and needs to achieve the following objectives. RPO: Zero loss - This is transactional data with financial impact so we can't lose anything. RTO: Tending to zero - The business depends on our ability to process transactions every minute we are down we are losing money I have looked at a few of the other questions/answers but none meet our case exactly: SQL Server 2008 failover strategy - Log shipping or replication? How to achieve the following RTO & RPO with logshipping only using SQL Server? What is the best of two approaches to achieve DB Replication? My current thinking is that we should use mirroring but I am concerned that for RPO:0 we will need to do delayed commits and this could impact the performance of the primary DB which is not an option. Our current DR process is to: Stop incoming traffic to the primary site and allow all in-flight transaction to complete. Allow the replication to DR to complete. Change network routing to route to DR site. Start all applications and services on the secondary site (Ideally we can change this to a warmer stand-by whereby the applications are already running but not processing any transactions). In other words the DR database needs to, as quickly as possible, catch up with primary and be ready for processing as the new primary. We would then need to be able to reverse this when we are ready to switch back. Is there a better option than mirroring (should we be doing log-shipping too) and can anyone suggest other considerations that we should keep in mind?

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• Cocos2D: Upgrading from OpenGL ES 1.1 to 2.0

  - by Alex

  I have recently starting upgrading my ios game to the latest Cocos2D (2.0 rc), and I am having some difficulties upgrading my texture generation code to OpenGL 2.0. In the old version I generated images with this code: CCRenderTexture *rt = [CCRenderTexture renderTextureWithWidth:WIDTH height:HEIGHT]; [rt beginWithClear:bgColor.r g:bgColor.g b:bgColor.b a:bgColor.a]; glDisable(GL_TEXTURE_2D); glDisableClientState(GL_TEXTURE_COORD_ARRAY); glVertexPointer(2, GL_FLOAT, 0, verts); glColorPointer(4, GL_FLOAT, 0, colors); glDrawArrays(GL_TRIANGLE_STRIP, 0, (GLsizei)nVerts); glEnableClientState(GL_TEXTURE_COORD_ARRAY); glEnable(GL_TEXTURE_2D); [rt end]; But since OpenGL 2.0 works differently this code won't work. What is the best way to use the new OpenGL?

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• Sortie de la quatrième beta de PySide 1.0.0, le binding Python de Qt : corrections de bogues et exécutable Windows au menu

  Sortie de PySide 1.0.0 beta 3 Elle corrige 35 bogues qualifiés de haute priorité du binding Python pour le framework Qt Par Jiyuu et dourouc05 le 07/01/2010 Nokia vient d'annoncer la sortie de la troisième beta de son binding Python du framework Qt. Cette nouvelle beta est principalement considérée comme une version de maintenance, corrigeant trente-cinq bogues de la deuxième beta, ces bogues étant qualifiés de haute priorité. Des versions corrigées de apiextractor, shiboken et libpyside, partie de la chaîne d'outils servant à la génération du binding, sont aussi disponibles. Actuellement, seule les sources de cette version sont disponibles ; des versions binaires devraient être d...

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• Oracle OpenWorld - Events of Interest

  - by Larry Wake

  I mentioned the "Focus On Oracle Solaris" document the other day, which lists many of the Solaris-related events at Oracle OpenWorld this year; today I thought I'd highlight a few sessions you might find interesting. Monday, October 1st: 4:45 PM - Get Proactive: Best Practices for Maintaining and Upgrading Oracle Solaris (Moscone South 252) This session covers best practices for upgrading and patching and how to take advantage of unique technologies in Oracle Solaris 10 and 11. Learn how to get maximum value from My Oracle Support for both reactive and proactive requirements. Understand the benefits of secure remote access and how Oracle Support experts use collaborative shared sessions combined with Oracle Solaris technologies such as DTrace. Tuesday, October 2nd: 10:15 AM -  How to Increase Performance and Agility with an Open Data Center Fabric (Moscone South 200) If you haven't had a chance to hear about Xsigo Systems, this is a golden opportunity while you're at OpenWorld. Now part of Oracle, Xsigo's network virtualization technology is designed to increase both application performance and management efficiency, through a combination of software-defined network technology and the industry’s fastest fabric, allowing data center to converge Ethernet and Fibre Channel connectivity to a single fabric, to reduce complexity by 70 percent and CapEx by 50 percent while providing more I/O bandwidth to your applications. Wednesday, October 3rd: 10:15 AM - General Session: Oracle Solaris 11 Strategy, Engineering Insights, and Roadmap (Moscone South 103) Markus Flierl, head of Oracle Solaris Core Engineering, will outline the strategy and roadmap for Oracle Solaris,  how Oracle Solaris 11 is being deployed in cloud computing and the unique optimizations in Oracle Solaris 11 for the Oracle stack. The session also offers a sneak peek at the latest technology under development in Oracle Solaris, and what customers can expect to see in the coming updates. Plus, there are several Hands-On Labs: Monday, October 1st: 10:45 AM - 11:45 AM - Reduce Risk with Oracle Solaris Access Control to Restrain Users and Isolate Applications (Marriott Marquis - Salon 14/15) 4:45 PM - 5:45 PM - Managing Your Data with Built-In Oracle Solaris ZFS Data Services in Release 11  (Marriott Marquis - Salon 14/15) Tuesday, October 2nd: 1:15 PM - 2:15 PM - Virtualizing Your Oracle Solaris 11 Environment  (Marriott Marquis - Salon 10/11) Wednesday, October 3rd: 3:30 PM - 4:30 PM - Large-Scale Installation and Deployment of Oracle Solaris 11 (Marriott Marquis - Salon 14/15) There's plenty more--see the "Focus On Oracle Solaris" guide. See you next week in San Francisco!

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• Filling a Grid with Files in a Folder - C#

  This code sample shows, in C#, how to get all the files within a specific folder, and list them all, including the file size, in a Gridview control. To access the FileSystem, you’ll need to import the System.IO namespace, and to use a DataTable, you must import the System.Data namespace: using System.IO; using System.Data;

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• Will Apple abandon OpenCL?

  - by John

  I am developing OpenCL applications, amongst others for MacOS. The new Macbook pro 13 inch comes with an Intel HD Graphics 3000 card so it seams reasonable to assume all their mainstream computers like Macbook and Mac mini will also come out with this Intel graphics card soon. OpenCL is not available for Intel graphics cards. Intel having a terrible reputation in developing graphics drivers and Apple knowing this makes me wonder Apple is abandoning OpenCL already again. Especially considering OpenCL should run anywhere, not only on high end systems. Developing applications only for the high end Macs with dedicated graphics hardware or for previous generation hardware with the Geforce 320M would not be a feasible option for me. Does anybody have any thoughts on this?

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• Wophone : le nouvel OS mobile chinois qui veut concurrencer Android et iOS

  Wophone : le nouvel OS mobile chinois Pour concurrencer Android et l'iPhone China Unicom, l'un des trois plus gros opérateurs de téléphonie sans fil de Chine, a annoncé qu'il envisageait de lancer de nouveaux terminaux mobile équipé de son propre système d'exploitation maison baptisé « Woppone». La plate-forme, en cours de développement, est basée sur Linux. Elle pourra tourner sur les Smartphones et sur les tablettes. Le but d'un tel OS est de permettre à China Unicom, d'après sa propre communication, de démocratiser sa jeune génération de réseau sans fil 3G. Grâce à ce nouvel OS, China Unicom espère développer des appareils sans fil 3G plus rapide et réduire le temps néc...

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• want to build a replica of chartgame.com

  - by raj

  I want to develop a trading simulator based on technical analysis. my ideal application would exactly be chartgame.com currently chartgame.com doesnt have historical data for stocks beyond the year 2008 and I would like to have data until 2012 and have the capability to extend beyond if needed. what are the fundamentals to build an application like chartgame.com. If anyone here is willing to help I can arrange for the finances.let me know.

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• Hard Disk Erasure - When Does Erased Not Really Mean Erased?

  You have no doubt heard the stories about personal or confidential business data being found on computer hard disks. There are comments by various world renowned experts in data recovery and computer... [Author: Michiel Van Kets - Computers and Internet - May 06, 2010]

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• Achieving decoupling in Model classes

  - by Guven

  I am trying to test-drive (or at least write unit tests) my Model classes but I noticed that my classes end up being too coupled. Since I can't break this coupling, writing unit tests is becoming harder and harder. To be more specific: Model Classes: These are the classes that hold the data in my application. They resemble pretty much the POJO (plain old Java objects), but they also have some methods. The application is not too big so I have around 15 model classes. Coupling: Just to give an example, think of a simple case of Order Header - Order Item. The header knows the item and the item knows the header (needs some information from the header for performing certain operations). Then, let's say there is the relationship between Order Item - Item Report. The item report needs the item as well. At this point, imagine writing tests for Item Report; you need have a Order Header to carry out the tests. This is a simple case with 3 classes; things get more complicated with more classes. I can come up with decoupled classes when I design algorithms, persistence layers, UI interactions, etc... but with model classes, I can't think of a way to separate them. They currently sit as one big chunk of classes that depend on each other. Here are some workarounds that I can think of: Data Generators: I have a package that generates sample data for my model classes. For example, the OrderHeaderGenerator class creates OrderHeaders with some basic data in it. I use the OrderHeaderGenerator from my ItemReport unit-tests so that I get an instance to OrderHeader class. The problem is these generators get complicated pretty fast and then I also need to test these generators; defeating the purpose a little bit. Interfaces instead of dependencies: I can come up with interfaces to get rid of the hard dependencies. For example, the OrderItem class would depend on the IOrderHeader interface. So, in my unit tests, I can easily mock the behaviour of an OrderHeader with a FakeOrderHeader class that implements the IOrderHeader interface. The problem with this approach is the complexity that the Model classes would end up having. Would you have other ideas on how to break this coupling in the model classes? Or, how to make it easier to unit-test the model classes?

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• A little gem from MPN&ndash;FREE online course on Architectural Guidance for Migrating Applications to Windows Azure Platform

  - by Eric Nelson

  I know a lot of technical people who work in partners (ISVs, System Integrators etc). I know that virtually none of them would think of going to the Microsoft Partner Network (MPN) learning portal to find some deep and high quality technical content. Instead they would head to MSDN, Channel 9, msdev.com etc. I am one of those people :-) Hence imagine my surprise when i stumbled upon this little gem Architectural Guidance for Migrating Applications to Windows Azure Platform (your company and hence your live id need to be a member of MPN – which is free to join). This is first class stuff – and represents about 4 hours which is really 8 if you stop and ponder :) Course Structure The course is divided into eight modules.  Each module explores a different factor that needs to be considered as part of the migration process. Module 1:  Introduction:  This section provides an introduction to the training course, highlighting the values of the Windows Azure Platform for developers. Module 2:  Dynamic Environment: This section goes into detail about the dynamic environment of the Windows Azure Platform. This session will explain the difference between current development states and the Windows Azure Platform environment, detail the functions of roles, and highlight development considerations to be aware of when working with the Windows Azure Platform. Module 3:  Local State: This session details the local state of the Windows Azure Platform. This section details the different types of storage within the Windows Azure Platform (Blobs, Tables, Queues, and SQL Azure). The training will provide technical guidance on local storage usage, how to write to blobs, how to effectively use table storage, and other authorization methods. Module 4:  Latency and Timeouts: This session goes into detail explaining the considerations surrounding latency, timeouts and how to assess an IT portfolio. Module 5:  Transactions and Bandwidth: This session details the performance metrics surrounding transactions and bandwidth in the Windows Azure Platform environment. This session will detail the transactions and bandwidth costs involved with the Windows Azure Platform and mitigation techniques that can be used to properly manage those costs. Module 6:  Authentication and Authorization: This session details authentication and authorization protocols within the Windows Azure Platform. This session will detail information around web methods of authorization, web identification, Access Control Benefits, and a walkthrough of the Windows Identify Foundation. Module 7:  Data Sensitivity: This session details data considerations that users and developers will experience when placing data into the cloud. This section of the training highlights these concerns, and details the strategies that developers can take to increase the security of their data in the cloud. Module 8:  Summary Provides an overall review of the course.

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