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• fern-wifi-cracker "Exec format error" breaks packaging system

  - by cunix

  root@cunix:/home/cunix# sudo apt-get remove fern-wifi-cracker Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libqt4-test libqt4-sql-mysql mysql-common libqt4-xmlpatterns libqt4-help python-qt4 python-sip libqt4-sql-sqlite libqt4-sql macchanger libqt4-designer libmysqlclient16 python-scapy libqt4-scripttools Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: fern-wifi-cracker 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 3,514kB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 167661 files and directories currently installed.) Removing fern-wifi-cracker ... dpkg (subprocess): unable to execute installed pre-removal script (/var/lib/dpkg/info/fern-wifi-cracker.prerm): Exec format error dpkg: error processing fern-wifi-cracker (--remove): subprocess installed pre-removal script returned error exit status 2 Errors were encountered while processing: fern-wifi-cracker E: Sub-process /usr/bin/dpkg returned an error code (1) how to uninstall?

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• How to fix bad Collada produced by FBX?

  - by David

  I tried to use the FBX SDK (2011.3.1) to load FBX files and save them as Collada files in order to be able to import FBX files in Panda3D. Unfortunately the resulting Collada files are not usable for several reasons, among them: There's a Maya specific extra technique diffuse <diffuse> <texture texture="Map__2-image" texcoord="CHANNEL0"> <extra> <technique profile="MAYA"> <wrapU sid="wrapU0">TRUE</wrapU> <wrapV sid="wrapV0">TRUE</wrapV> <blend_mode>ADD</blend_mode> </technique> </extra> </texture> </diffuse> It assigns a texcoord channel name that isn't referenced anywhere else in the file (in the previous code sample, no geometry uses "CHANNEL0"...) Every polygon is exported twice, a first time with a basic material (only diffuse color, specular color, etc.) and a second time with a textured material -- this doubles the number of polygons of each model without any valuable reason Anyway, the resulting Collada file cannot be opened correctly either with OpenCOLLADA or Panda3D's "dae2egg". Anyone has any experience on how to "fix" it and make it understandable by common and well-reputed Collada importers such as OpenCOLLADA?

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• JRockit R28 "Ropsten" released

  - by tomas.nilsson

  R28 is a major release (as indicated by the careless omissions of "minor" and "revision" numbers. The formal name would be R28.0.0). Our customers expect grand new features and innovation from major releases, and "Ropsten" will not disappoint. One of the biggest challenges for IT systems is after the fact diagnostics. That is - Once something has gone wrong, the act of trying to figure out why it went wrong. Monitoring a system and keeping track of system health once it is running is considered a hard problem (one that we to some extent help our customers solve already with JRockit Mission Control), but doing it after something occurred is close to impossible. The most common solution is to set up heavy logging (and sacrificing system performance to do the logging) and hope that the problem occurs again. No one really thinks that this is a good solution, but it's the best there is. Until now. Inspired by the "Black box" in airplanes, JRockit R28 introduces the Flight Recorder. Flight Recorder can be seen as an extremely detailed log, but one that is always on and that comes without a cost to system performance. With JRockit Flight Recorder the customer will be able to get diagnostics information about what happened _before_ a problem occurred, instead of trying to guess by looking at the fallout. Keywords that are important to the customer are: • Extremely detailed, always on, diagnostics information • No performance overhead • Powerful tooling to visualize the data recorded. • Enables diagnostics of bugs and SLA breaches after the fact. For followers of JRockit, other additions are: • New JMX agent that allows JRMC to be used through firewalls more easily • Option to generate HPROF dumps, compatible with tools like Eclipse MAT • Up to 64 BG compressed references (previously 4) • View memory allocation on a thread level (as an Mbean and in Mission Control) • Native memory tracking (Command line and Mbean) • More robust optimizer. • Dropping support for Java 1.4.2 and Itanium If you have any further questions, please email [email protected]. The release can be downloaded from http://www.oracle.com/technology/software/products/jrockit/index.html

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• SQL SERVER – A Cool Trick – Restoring the Default SQL Server Management Studio – SSMS

  - by pinaldave

  “I do not know where my windows went!” “I just closed my object explorer and now I cannot find it.” “How do I get my original windows layout back in SQL Server Management Studio?” “How do I get the window which was there in left side back again?” Since last 2-3 years, every single day I receive more than 5 emails on SSMS and its layout. For the beginners it is very common to get confused when they attempt to change SQL Server Management Studio’s windows layout. They often change the layout and are not able to get the original layout back. Often people do not change the layout whole of their life, leading to uncomfortable feeling when they go to another’s computer where the windows are differently placed. Today’s blog post is dedicated all the beginners in SQL Server. It is extremely simple to reset the SSMS layout to default layout. The default layout involves 2 major things 1) Object Explorer on left side 2) Query Windows on right side (80% screen estate). Personally I am so used to this as well that if there is any other changes in the same, I do not enjoy working on the environment. Well, the solution to rest the SSMS layout is very simple. One can do it in split seconds.  To restore the default configuration, on the Window menu, click Reset Window Layout. Have you ever used this feature? Do you feel uncomfortable when SSMS layout is not in default state? How do you address this situation? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology

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• Why doesn't Python have a "flatten" function for lists?

  - by Hubro

  Erlang and Ruby both come with functions for flattening arrays. It seems like such a simple and useful tool to add to a language. One could do this: >>> mess = [[1, [2]], 3, [[[4, 5]], 6]] >>> mess.flatten() [1, 2, 3, 4, 5, 6] Or even: >>> import itertools >>> mess = [[1, [2]], 3, [[[4, 5]], 6]] >>> list(itertools.flatten(mess)) [1, 2, 3, 4, 5, 6] Instead, in Python, one has to go through the trouble of writing a function for flattening arrays from scratch. This seems silly to me, flattening arrays is such a common thing to do. It's like having to write a custom function for concatenating two arrays. I have Googled this fruitlessly, so I'm asking here; is there a particular reason why a mature language like Python 3, which comes with a hundred thousand various batteries included, doesn't provide a simple method of flattening arrays? Has the idea of including such a function been discussed and rejected at some point?

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• How to handle growing QA reporting requirements?

  - by Phillip Jackson

  Some Background: Our company is growing very quickly - in 3 years we've tripled in size and there are no signs of stopping any time soon. Our marketing department has expanded and our IT requirements have as well. When I first arrived everything was managed in Dreamweaver and Excel spreadsheets and we've worked hard to implement bug tracking, version control, continuous integration, and multi-stage deployment. It's been a long hard road, and now we need to get more organized. The Problem at Hand: Management would like to track, per-developer, who is generating the most issues at the QA stage (post unit testing, regression, and post-production issues specifically). This becomes a fine balance because many issues can't be reported granularly (e.g. per-url or per-"page") but yet that's how Management would like reporting to be broken down. Further, severity has to be taken into account. We have drafted standards for each of these areas specific to our environment. Developers don't want to be nicked for 100+ instances of an issue if it was a problem with an include or inheritance... I had a suggestion to "score" bugs based on severity... but nobody likes that. We can't enter issues for every individual module affected by a global issue. [UPDATED] The Actual Questions: How do medium sized businesses and code shops handle bug tracking, reporting, and providing useful metrics to management? What kinds of KPIs are better metrics for employee performance? What is the most common way to provide per-developer reporting as far as time-to-close, reopens, etc.? Do large enterprises ignore the efforts of the individuals and rather focus on the team? Some other questions: Is this too granular of reporting? Is this considered 'blame culture'? If you were the developer working in this environment, what would you define as a measureable goal for this year to track your progress, with the reward of achieving the goal a bonus?

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• Inheritance, commands and event sourcing

  - by Arthis

  In order not to redo things several times I wanted to factorize common stuff. For Instance, let's say we have a cow and a horse. The cow produces milk, the horse runs fast, but both eat grass. public class Herbivorous { public void EatGrass(int quantity) { var evt= Build.GrassEaten .WithQuantity(quantity); RaiseEvent(evt); } } public class Horse : Herbivorous { public void RunFast() { var evt= Build.FastRun; RaiseEvent(evt); } } public class Cow: Herbivorous { public void ProduceMilk() { var evt= Build.MilkProduced; RaiseEvent(evt); } } To eat Grass, the command handler should be : public class EatGrassHandler : CommandHandler<EatGrass> { public override CommandValidation Execute(EatGrass cmd) { Contract.Requires<ArgumentNullException>(cmd != null); var herbivorous= EventRepository.GetById<Herbivorous>(cmd.Id); if (herbivorous.IsNull()) throw new AggregateRootInstanceNotFoundException(); herbivorous.EatGrass(cmd.Quantity); EventRepository.Save(herbivorous, cmd.CommitId); } } so far so good. I get a Herbivorous object , I have access to its EatGrass function, whether it is a horse or a cow doesn't matter really. The only problem is here : EventRepository.GetById<Herbivorous>(cmd.Id) Indeed, let's imagine we have a cow that has produced milk during the morning and now wants to eat grass. The EventRepository contains an event MilkProduced, and then come the command EatGrass. With the CommandHandler, we are no longer in the presence of a cow and the herbivorious doesn't know anything about producing milk . what should it do? Ignore the event and continue , thus allowing the inheritance and "general" commands? or throw an exception to forbid execution, it would mean only CowEatGrass, and HorseEatGrass might exists as commands ? Thanks for your help, I am just beginning with these kinds of problem, and I would be glad to have some news from someone more experienced.

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• How to create a folder in SharePoint2010 root folder and set permission to it

  - by ybbest

  If you need to create a folder in SharePoint2010 root folder and set permission to it, here is piece of code that does it. In the script, I have created a folder called Temp in Logs folder under SharePoint2010 root and then I grant read/write access to the Windows group WSS_WPG and full access to the group WSS_ADMIN_WPG for that folder. $Folder=New-Item "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\LOGS\temp" -Type Directory -force $acl = Get-Acl $Folder ##The following line has been commented out , if you like to break the permission inheritance from the parent floder , uncommented the code. #$acl.SetAccessRuleProtection($True, $False) $rule = New-Object System.Security.AccessControl.FileSystemAccessRule("WSS_ADMIN_WPG","FullControl", "ContainerInherit, ObjectInherit", "None", "Allow") $acl.AddAccessRule($rule) $rule = New-Object System.Security.AccessControl.FileSystemAccessRule("WSS_WPG","Modify", "ContainerInherit, ObjectInherit", "None", "Allow") $acl.AddAccessRule($rule) Set-Acl $Folder $acl References: http://technet.microsoft.com/en-us/library/ff730951.aspx http://msdn.microsoft.com/en-us/library/tbsb79h3.aspx http://blogs.technet.com/b/josebda/archive/2010/11/12/how-to-handle-ntfs-folder-permissions-security-descriptors-and-acls-in-powershell.aspx http://chrisfederico.wordpress.com/2008/02/01/setting-acl-on-a-file-or-directory-in-powershell/

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• CodePlex Daily Summary for Saturday, October 20, 2012

  CodePlex Daily Summary for Saturday, October 20, 2012Popular ReleasesP1 Port monitoring with Netduino Plus: V0.3 New release with new features: This V0.3 release that is made public on the 20th of October 2012 Third public version V0.3 A lot of work in better code, some parts are documented in the code S0 Pulse counter logic added for logging use or production of electricity Send data to PV Output for production of electricity Extra fields for COSM.com for more information Ability to enable or disable certain functionality before deploying to Netduino PlusMCEBuddy 2.x: MCEBuddy 2.3.3: 1. MCEBuddy now supports PIPE (2.2.15 style) and the newer remote TCP communication. This is to solve problems with faulty Ceton network drivers and some issues with older system related to load. When using LOCALHOST, MCEBuddy uses PIPE communication otherwise it uses TCP based communication. 2. UPnP is now disabled by Default since it interferes with some TV Tuner cards (CETON) that represent themselves as Network devices (bad drivers). Also as a security measure to avoid external connection...Pulse: Pulse 0.6.2.0: This is a roll-up of a bunch of features I've been working on for a while. I wasn't planning to release it but Wallbase.cc is broken in any version earlier then this! - Fixed Wallbase.cc provider - Multi-provider options. Now you can specify multiple input providers with different search options. - Providers have little icons now - More! Check it out and report any bugs! Having issues? Check the Known Errors page for solutions to commonly encountered problems. If you don't see the ...Orchard Project: Orchard 1.6 RC: RELEASE NOTES This is the Release Candidate version of Orchard 1.6. You should use this version to prepare your current developments to the upcoming final release, and report problems. Please read our release notes for Orchard 1.6 RC: http://docs.orchardproject.net/Documentation/Orchard-1-6-Release-Notes Please do not post questions as reviews. Questions should be posted in the Discussions tab, where they will usually get promptly responded to. If you post a question as a review, you wil...Rawr: Rawr 5.0.1: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...Yahoo! UI Library: YUI Compressor for .Net: Version 2.1.1.0 - Sartha (BugFix): - Revered back the embedding of the 2x assemblies.Visual Studio Team Foundation Server Branching and Merging Guide: v2.1 - Visual Studio 2012: Welcome to the Branching and Merging Guide What is new? The Version Control specific discussions have been moved from the Branching and Merging Guide to the new Advanced Version Control Guide. The Branching and Merging Guide and the Advanced Version Control Guide have been ported to the new document style. See http://blogs.msdn.com/b/willy-peter_schaub/archive/2012/10/17/alm-rangers-raising-the-quality-bar-for-documentation-part-2.aspx for more information. Quality-Bar Details Documentatio...D3 Loot Tracker: 1.5.5: Compatible with 1.05.Common Data Parameters Module: CommonParam0.3H: Common Param has now been updated for VS2012 and NUnit 2.6.1. Conformance with the latest StyleCop has been maintained. If you need a version for VS2010, please use the previous version.????: ???_V2.0.0: ?????????????Write Once, Play Everywhere: MonoGame 3.0 (BETA): This is a beta release of the up coming MonoGame 3.0. It contains an Installer which will install a binary release of MonoGame on windows boxes with the following platforms. Windows, Linux, Android and Windows 8. If you need to build for iOS or Mac you will need to get the source code at this time as the installers for those platforms are not available yet. The installer will also install a bunch of Project templates for Visual Studio 2010 , 2012 and MonoDevleop. For those of you wish...WPUtils: WPUtils 1.3: Blend SDK for Silverlight provides a HyperlinkAction which is missing in Blend SDK for Windows Phone. This release adds such an action which makes use of WebBrowserTask to show web page. You can also bind the hyperlink to your view model. NOTE: Windows Phone SDK 7.1 or higher is required.Windawesome: Windawesome v1.4.1 x64: Fixed switching of applications across monitors Changed window flashing API (fix your config files) Added NetworkMonitorWidget (thanks to weiwen) Any issues/recommendations/requests for future versions? This is the 64-bit version of the release. Be sure to use that if you are on a 64-bit Windows. Works with "Required DLLs v3".CODE Framework: 4.0.21017.0: See change log in the Documentation section for details.Magelia WebStore Open-source Ecommerce software: Magelia WebStore 2.1: Add support for .net 4.0 to Magelia.Webstore.Client and StarterSite version 2.1.254.3 Scheduler Import & Export feature (for Professional and Entreprise Editions) UTC datetime and timezone support .net 4.5 and Visual Studio 2012 migration client magelia global refactoring release of a nugget package to help developers speed up development http://nuget.org/packages/Magelia.Webstore.Client optimization of the data update mechanism (a.k.a. "burst") Performance improvment of the d...JayData - The cross-platform HTML5 data-management library for JavaScript: JayData 1.2.2: JayData is a unified data access library for JavaScript to CRUD + Query data from different sources like OData, MongoDB, WebSQL, SqLite, HTML5 localStorage, Facebook or YQL. The library can be integrated with Knockout.js or Sencha Touch 2 and can be used on Node.js as well. See it in action in this 6 minutes video Sencha Touch 2 example app using JayData: Netflix browser. What's new in JayData 1.2.2 For detailed release notes check the release notes. Revitalized IndexedDB providerNow you c...VFPX: FoxcodePlus: FoxcodePlus - Visual Studio like extensions to Visual FoxPro IntelliSense.Droid Explorer: Droid Explorer 0.8.8.8 Beta: fixed the icon for packages on the desktop fixed the install dialog closing right when it starts removed the link to "set up the sdk for me" as this is no longer supported. fixed bug where the device selection dialog would show, even if there was only one device connected. fixed toolbar from having "gap" between other toolbar removed main menu items that do not have any menus Fiskalizacija za developere: FiskalizacijaDev 1.0: Prva verzija ovog projekta, još je uvijek oznacena kao BETA - ovo znaci da su naša testiranja prošla uspješno :) No, kako mi ne proizvodimo neki software za blagajne, tako sve ovo nije niti isprobano u "realnim" uvjetima - svaka je sugestija, primjedba ili prijava bug-a je dobrodošla. Za sve ovo koristite, molimo, Discussions ili Issue Tracker. U ovom trenutku runtime binary je raspoloživ kao Any CPU za .NET verzije 2.0. Javite ukoliko trebaju i verzije buildane za 32-bit/64-bit kao i za .N...Squiggle - A free open source LAN Messenger: Squiggle 3.2 (Development): NOTE: This is development release and not recommended for production use. This release is mainly for enabling extensibility and interoperability with other platforms. Support for plugins Support for extensions Communication layer and protocol is platform independent (ZeroMQ, ProtocolBuffers) Bug fixes New /invite command Edit the sent message Disable update check NOTE: This is development release and not recommended for production use.New ProjectsADFS 2.0 Attribute Store for SharePoint: ADFS 2.0 Attribute Store for SharePointALM Kickstarter: A simple Application Lifecycle Management Kickstart application written using ASP.NET MVC.Building iOS Apps with Team Foundation Server: An iPad sample project used for building iOS Xcode projects using a Team Foundation Server and the open source Jenkins build system. gyk-note: WTFHello World Fkollike: Test Project for fkollikeInnovacall ASP.net MVC 4 Azure Framework: Windows Azure Version of Innocacall ASP.net MVC 4 Framework. Intercom.Net: Intercom.Net is a C# library that provides easy tracking of customers to integration with the intercom.io CRM application. No need to learn yet another trackingjosephproject1: creating my first projectJust4Test: The project is just created for test.KBCruiser: KBCruiser helps developer to search reference or answers according to different resource categories: Forum/Blog/KB/Engine/Code/Downloadkp: store usernames/passwords from the commandline. ** Semi-secure, but by no means robust enough for production usage ** Troy Hunt would be disgusted.Neuron Operating System: Neuron Operating Systemnewelook: onesearch Pedestrian Simulation: Pedestrian simulationPTE: Using template Excel to generate UI for Prototyping.RequestModel: RequestModel is a simple implementation of typed access to a ASP.NET web forms request parametersSap: Sap is free, open-source web software that you can use to create a blog. Sap is made in ASP.NET MVC 4 (Razor). Sap is still pre-alpha and heavily in developmentSgart SharePoint 2010 Query Viewer: Windows application, based on the client object model of SharePoint 2010, that allows you to see the CAML query of a list view. Silverlight SuperLauncher: The Silverlight SuperLauncher project base on SL8.SL an Micosoft NESL.SL8.SL: The SL8.SL is a set of extension for silverlight. include mvvm,data validate,linq to sql, custom data page,oob helper etc. SL8.SL make easier to develop sl appSPDeployRetract: Easily Deploy and Retract SharePoint solutions using PowerShell. System Center Service Manager API: This API is for System Center Service Manager. It is written in C# and abstracts the more difficult aspects of service manager customization.TestingConf Utilities: This Framework will be helpful for testing and configuration purpose, so it has some methods that will be used as utilities that developers may need.The Veteran's Image Memory: his Project is been built for Educational purposes only . its not our Intention to offend anyone.Viking Effect: Viking Effect is a Brazilian website for the nerd people. We will offer news, tales and the Viking Scream, our take on the Podcast.Weather Report Widget: WPF-based application for displaying temperature, wind direction and speed for the selected city.WorldsCricket: WorldsCricket is a website which gives information on Cricket history with different cricket format, World’s cricketers, International Cricket Teams etc...XendApp - API: XendApp is a eco system for sending messages from a computer/application to a device. A device could be a phone or tablet for example.

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• Is shipping a Clojure desktop app realistic?

  - by Cedric Martin

  I'm currently shipping a desktop Java application. It is a plain old Java 5 Java / Swing app and so far everything worked nicely. Java 5 was targetted because some users were on OS X version / computers that shall never have Java 6 (we may lift this limitation soon and switch to a newer Java and simply abandoning my users stuck with Java 5). I'm quickly getting up to speed with Clojure but I haven't really done lots of Clojure-to-Java and Java-to-Clojure yet and I was wondering if it was realistic to ship a Clojure desktop application instead of a Java application? The application I'm shipping is currently about 12 MB with all the .jar so adding Clojure doesn't seen to be too much of an issue. My plan would be to have Clojure call Java APIs: my application is already divided in several independent jars. If I understand correctly calling Clojure from Java is harder than calling Java code from Clojure which is why I'd basically rewrite all the UI (part of the UI, mixing Swing components and self-made BufferedImages needs to be rewritten anyway due to the rise of retina display), and do all the 'wiring' from Clojure. So that's the problem I'm facing: is it realistic to ship a Clojure desktop app? (it certainly doesn't seem to be very widespread but then shipping plain Java desktop apps ain't that common either and I'm doing it anyway) Technically, what would need to be done? (compared to shipping a Java app)

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• Why can't I run Compiz?

  - by jasoncruz98

  I installed Ubuntu 11.10 on my laptop. The main reason I switched to Ubuntu is because I wanted to use Compiz. The first thing I did was to go to Additional Drivers and install ATI/AMD Proprietary FGRLX Graphics Driver. There was also another one available, ATI/AMD Proprietary FGRLX Graphics Driver (post-release updates), but I didn't install that one, because it basically meant the same thing to me as the one I already installed. Next, I went to the ubuntuguide.org Oneiric Wiki http://ubuntuguide.org/wiki/Ubuntu:Oneiric#Compiz_Fusion So I followed the instructions there and ran this command in terminal: sudo apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-main compiz-fusion-plugins-extra emerald librsvg2-common But then, the terminal window said that the package "emerald" could not be found. So, I ran this command instead: sudo apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-main compiz-fusion-plugins-extra After that, I installed Fusion Icon by running this command: sudo apt-get install fusion-icon I restarted my computer, searched for Compiz Config Settings Manager, and clicked on it. Then, I activated Wobbly Windows. I logged off and logged back on again, but there was no wobbly windows effect. So I tried clicking on Fusion Icon, but it never started. Can someone please tell me what I did wrong here? Because I see everyone seems to be able to run Compiz except me. I really need to start Compiz, or else I think I'm going to uninstall Ubuntu.

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• What are some arguments AGAINST using EntityFramework?

  - by Rachel

  The application I am currently building has been using Stored procedures and hand-crafted class models to represent database objects. Some people have suggested using Entity Framework and I am considering switching to that since I am not that far into the project. My problem is, I feel the people arguing for EF are only telling me the good side of things, not the bad side :) My main concerns are: We want Client-Side validation using DataAnnotations, and it sounds like I have to create the client-side models anyways so I am not sure that EF would save that much coding time We would like to keep the classes as small as possible when going over the network, and I have read that using EF often includes extra data that is not needed We have a complex database layer which crosses multiple databases, and I am not sure EF can handle this. We have one Common database with things like Users, StatusCodes, Types, etc and multiple instances of our main databases for different instances of the application. SELECT queries can and will query across all instances of the databases, however users can only modify objects that are in the database they are currently working on. They can switch databases without reloading the application. Object modes are very complex and there are often quite a few joins involved Arguments for EF are: Concurrency. I wouldn't have to code in checks to see if the record was updated before each save Code Generation. EF can generate partial class models and POCOs for me, however I am not positive this would really save me that much time since I think we would still need to create the client-side models for validation and some custom parsing methods. Speed of development since we wouldn't need to create the CRUD stored procedures for every database object Our current architecture consists of a WPF Service which handles database calls via parameterized Stored Procedures, POCO objects that go to/from the WCF service and the WPF client, and the WPF client itself which transforms POCOs into class Models for the purpose of Validation and DataBinding.

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• How to refactor while keeping accuracy and redundancy?

  - by jluzwick

  Before I ask this question I will preface it with our environment. My team consists of 3 programmers working on multiple different projects. Due to this, our use of testing is mostly limited to very general black box testing. Take the following assumptions also: Unit Tests will eventually be written but I'm under strict orders to refactor first Ignore common Test-Driven Development techniques when given this environment, my time is limited. I understand that if this were done correctly, our team would actually save money in the long-term by building Unit-Tests before hand. I'm about to refactor a fairly large portion of the code that is critical. While I believe my code will accurately work when done and after our black box testing, I realize that there will be new data that the new code might not be able to handle. What I wanted to know is how to keep old code that functions 98% of the time so that we can call those subroutines in case the new code doesn't work properly. Right now I'm thinking of separating the old code in a separate class file and adding a variable to our config that will tell the program which code to use. Is there a better way to handle this? NOTE: We do use revision control and we have archived builds so the client could always revert to a previous build, but I would like to see if there is a decent way of doing this besides reverting. I want this so they can use the other new functionality delivered in the new build. Edit: While I agree I will need to write Unit Tests for this, I don't believe I will capture everything with them. I'm looking for ways to easily be able to revert to the old, functional code should anything happen. While I know this is a poor practice, I'm planning on removing this code after our team can guarantee that the new code works to the same standards as the old.

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• cannot login to ubuntu 14.04

  - by Wallace Cheng

  I upgraded my Hp g6 from ubuntu 13.10 to 14.04 yesterday. Now I cannot log into the system using ubuntu/unity But I can still login using i3 windows manager. I checked and found the ubuntu-desktop is broken. I tried to reinstall it, it complained about the dependency issue and broken package. some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help resolve the situation: The following packages have unmet dependencies: ubuntu-desktop : Depends: ubuntu-session but it is not going to be installed Recommends: empathy but it is not going to be installed E: Unable to correct problems, you have held broken packages. when I tried to install ubuntu-session, Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help resolve the situation: The following packages have unmet dependencies: ubuntu-session : Depends: gnome-session-bin (< 3.10) but 3.10.1-0ubuntu1~saucy1 is to be installed Depends: gnome-session-common (= 3.9.90-0ubuntu12) but 3.10.1-0ubuntu1~saucy1 is to be installed E: Unable to correct problems, you have held broken packages. I tried sudo apt-get install -f but it does not work Any help would be highly appreciated. Thanks.

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• SQL SERVER – Load Generator – Free Tool From CodePlex

  - by pinaldave

  One of the most common questions I receive is if there any tool available to generate load on SQL Server. Absolutely there is a fabulous free tool available to generate load on SQL Server on Codeplex. This tool was released in 2008 but it is still extremely relevant to generate the load on SQL Server as well works fabulously. CodePlex is a project initiated by Microsoft for hosting open source softwares. The best part of this SQL Server Load Generator is that users can run multiple simultaneous queries again SQL Server using different login account and different application name. The interface of the tool is extremely easy to use and very intuitive as well. One of the things which I felt needed improvement was a default configuration. As every single time when I was adding a query the default settings were showing up and I had to manually change that. However, when I went to Menu >> Tools >>Options I was really happy as it has options to change every single default which is available. Here one can give default username, password, database name as well various settings related to configuration. Additionally application logging is also possible through the options. A couple of other important points I noticed was the button to reset counters as well status bar containing useful information of Total Threads, Completed Queries and Failed Queries. I use this frequently for my load testing. What tool do you use for SQL Server Load Generator? Download SQL Load Generator Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Utility, T SQL, Technology

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• Phishing attack stuck with jsp loginAction.do page?

  - by user970533

  I'm testing a phishing website on a staged replica of an jsp web-application. I'm doing the usual attack which involves changing the post and action field of source code to divert to my own written jsp script capture the logins and redirect the victim to the original website. It looks easy, but trust me, it's has been me more then 2 weeks and I cannot write the logins to the text file. I have tested the jsp page on my local wamp server it works fine. In staged, when I click on the ok button for user/password field I'm taken to loginAction.do script. I checked this using the tamper data add-on on Firefox. The only way I was able to make my script run was to use burp proxy intercept the request and change action parameter to refer my uploaded script. I want to know what does an loginAction.do? I have googled it - it's quite common to see it in jsp application. I have checked the code; there is nothing that tells me why the page always points to the .do script instead of mine. Is there some kind of redirection in Tomcat? I like to know. I'm unable to exploit this attack vector? I need the community's help.

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• Combo/Input LOV displaying non-reference key value

  - by [email protected]

  Its a very common use-case of LOV that we want to diplay a non key value in the LOV but store the key value in the DB. I had to do the same in a sample application I was building. During implementation of this, I realized that there are multiple ways to achieve this.I am going to describe each of these below.Example : Lets take an example of our classic HR schema. I have 2 tables Employee and Department where Dno is the foreign key attribute in Employee that references Department table.I want to create a LOV for Deparment such that the List always displays Dname instead of Dno. However when I update it, it it should update the reference key Dno.To achieve this I had 3 alternative1) Approach 1 :Create a composite VO and add the attributes from Department into Employee using a join.Refer the blog http://andrejusb.blogspot.com/2009/11/defining-lov-on-reference-attribute-in.htmlPositives :1. Easy to implement and use.2. We can use this attribute directly in queries defined on new attribute i.e If i have to display this inside query panel.Negative : We have to create an additional Join on the VO.Ex:SELECT Employees.EMPLOYEE_ID,        Employees.FIRST_NAME,        Employees.LAST_NAME,        Employees.EMAIL,        Employees.PHONE_NUMBER,       Department.Dno,        Department.DnameFROM EMPLOYEES Employees, Department Department WHERE Employees.Dno = Department .Dno2) Approach 2 :

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• Advice for Storing and Displaying Dates and Times Across Different Time Zones

  A common question I receive from clients, colleagues, and 4Guys readers is for recommendations on how best to store and display dates and times in a data-driven web application. One of the challenges in storing and displaying dates in a web application is that it is quite likely that the visitors arriving at your site are not in the same time zone as your web server; moreover, it's very likely that your site attracts visitors from many different time zones from around the world. Consider an online messageboard site, like ASPMessageboard.com, where each of 1,000,000+ posts includes the date and time it was made. Imagine a user from New York leaves a post on April 7th at 4:30 PM and that the web server hosting the site is located in Dallas, Texas, which is one hour earlier than New York. When storing that post to the database do you record the post's date and time relative to the visitor (4:30 PM), the relative to the web server (3:30 PM), or some other value? And when displaying this post how do you show that date and time to a reader in San Francisco, which is three hours earlier than New York? Do you show the time relative to the person who made the post (4:30 PM), relative to the web server (3:30 PM), or relative to the user (1:30 PM)? And if you decide to store or display the date based on the poster's or visitor's time zone then how do you know their time zone and its offset? How do you account for daylight savings, and so on? This article provides guidance on how to store and display dates and times for visitors across different time zones and includes a demo that gives a working example of some of these techniques. Read on to learn more! Read More >

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• SQLAuthority News – Download – Microsoft SQL Server Compact 4.0

  - by pinaldave

  Microsoft SQL Server Compact 4.0 is a free, embedded database that software developers can use for building ASP.NET websites and Windows desktop applications. SQL Server Compact 4.0 has a small footprint and supports private deployment of its binaries within the application folder, easy application development in Visual Studio and WebMatrix, and seamless migration of schema and data to SQL Server. You can download very small file of SQL Server CE from here. Books Online is the primary documentation for SQL Server Compact 4.0. Books Online includes the following types of information: Setup and upgrade instructions. Information about new features and backward compatibility. Conceptual descriptions of the technologies and features in SQL Server Compact 4.0. Procedural topics describing how to use the various features in SQL Server Compact 4.0. Tutorials that guide you through common tasks. Reference documentation for the graphical tools, programming languages, and application programming interfaces (APIs) that are supported by SQL Server Compact 4.0. You can download SQL Server CE Book Online here. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: PostADay, SQL, SQL Documentation, SQL Download, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Configuring LiveID authentication with SharePoint2010

  - by ybbest

  With the addition of the new claims based authentication framework in SharePoint 2010, SharePoint is now more loosely coupled to the authentication layer than ever. You’ve probably seen presentations or webinars where it was mentioned that you can use claims authentication against authentication providers such as Live ID and OpenID. In this blog I will show you the common problems while you configure you LiveID integration with SharePoint2010.The detailed configuration can be found in the following blogs. Part 1 – http://www.wictorwilen.se/Post/Visual-guide-to-Windows-Live-ID-authentication-with-SharePoint-2010-part-1.aspx Part 2 – http://www.wictorwilen.se/Post/Visual-guide-to-Windows-Live-ID-authentication-with-SharePoint-2010-part-2.aspx Part 3 – http://www.wictorwilen.se/Post/Visual-guide-to-Windows-Live-ID-authentication-with-SharePoint-2010-part-3.aspx Here are some problems I have following the instructions: Problem 1: If you had the following exceptions when you run the PowerShell scripts to create the new LiveID authentication provider New-SPTrustedIdentityTokenIssuer : Exception of type ‘System.ArgumentException’ was thrown.Parameter name: claimType At line:1 char:42 + $authp = New-SPTrustedIdentityTokenIssuer <<<< -Name “LiveID INT” -Description “LiveID INT” -Realm $realm -ImportTrustCertificate $certfile -ClaimsMappings $emailclaim,$upnclaim -SignInUrl “https://login.live-int.com/login.srf” -IdentifierClaim $emailclaim.InputClaimType + CategoryInfo : InvalidData:(Microsoft.Share…dentityProvider:SPCmdletNewSPIdentityProvider) [New-SPTrustedIdentityTokenIssuer], ArgumentException + FullyQualifiedErrorId :Microsoft.SharePoint.PowerShell.SPCmdletNewSPIdentityProvider Solution: You need to Remove the existing the SPTrustedIdentityTokenIssuer.     1. You need to first get the existing TokenIssuer name by Get-SPTrustedIdentityTokenIssuer, and then run Remove- SPTrustedIdentityTokenIssuer to remove the existing TokenIssuer.     2. After that , you can re-run the script , everything should work fine now. Problem 2: Live INT automatically logs out Whenever I try to log in (https://login.live-int.com/login.srf), after entering valid email/password I get redirected to the logout page. Solution: You can find the solution in my previous blog.

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• Tuning B2B Server Engine Threads in SOA Suite 11g

  - by Shub Lahiri, A-Team

  Background B2B 11g has a number of parameters that can be tweaked to tune the engine for handling high volumes of messages. These parameters are also known as B2B server properties and managed via the EM console.  This note highlights one aspect of the tuning exercise and describes the different threads, that can be configured to tune the performance of a B2B server. Symptoms The most common indicator of a B2B engine in need of a tuning is reflected in the constant build-up of messages in an internal JMS queue within the B2B server. It is called B2B_EVENT_QUEUE and can be monitored via the Weblogic server console. Whenever such a behaviour is seen, it usually results in general degradation of performance. Remedy There could be many contributing factors behind a B2B server's degradation of performance. However, one of the first places to tune the server from the out-of-the-box, default configuration is to change the number of internal engine threads allocated within the B2B server. Usually the default configuration for the B2B server engine threads is not suitable for high-volume of messaging loads. So, it is necessary to increase the counts for 3 types of such threads, by specifying the appropriate B2B server properties via the EM console, namely, Inbound - b2b.inboundThreadCount Outbound - b2b.outboundThreadCount Default - b2b.defaultThreadCount The function of these threads are fairly self-explanatory. In other words, the inbound threads process the inbound messages that are coming into the B2B server from an external endpoint. Similarly, the outbound threads processes the messages that are sent out from the B2B server. The default threads are responsible for certain B2B server-specific special tasks. In case the inbound and outbound thread counts are not specified, the default thread count also dictates the total number of inbound and outbound threads. As found in any tuning exercise, the optimisation of these threads is usually reached via an iterative process. The best working combination of the thread counts are directly related to the system infrastructure, traffic load and several other environmental factors.

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• Extreme Optimization –Mathematical Constants and Basic Functions

  - by JoshReuben

  Machine constants The MachineConstants class - contains constants for floating-point arithmetic because the CLS System.Single and Double floating-point types do not follow the standard conventions and are useless. machine constants for the Double type: machine precision: Epsilon , SqrtEpsilon CubeRootEpsilon largest possible value: MaxDouble , SqrtMaxDouble, LogMaxDouble smallest Double-precision floating point number that is greater than zero: MinDouble , SqrtMinDouble , LogMinDouble A similar set of constants is available for the Single Datatype  Mathematical Constants The Constants class contains static fields for many mathematical constants and common expressions involving small integers – if you are doing thousands of iterations, you wouldn't want to calculate OneOverSqrtTwoPi , Sqrt17 or Log17 !!! Fundamental constants E - The base for the natural logarithm, e (2.718...). EulersConstant - (0.577...). GoldenRatio - (1.618...). Pi - the ratio between the circumference and the diameter of a circle (3.1415...). Expressions involving fundamental constants: TwoPi, PiOverTwo, PiOverFour, LogTwoPi, PiSquared, SqrPi, SqrtTwoPi, OneOverSqrtPi, OneOverSqrtTwoPi Square roots of small integers: Sqrt2, Sqrt3, Sqrt5, Sqrt7, Sqrt17 Logarithms of small integers: Log2, Log3, Log10, Log17, InvLog10  Elementary Functions The IterativeAlgorithm<T> class in the Extreme.Mathematics namespace defines many elementary functions that are missing from System.Math. Hyperbolic Trig Functions: Cosh, Coth, Csch, Sinh, Sech, Tanh Inverse Hyperbolic Trig Functions: Acosh, Acoth, Acsch, Asinh, Asech, Atanh Exponential, Logarithmic and Miscellaneous Functions: ExpMinus1 - The exponential function minus one, ex-1. Hypot - The hypotenuse of a right-angled triangle with specified sides. LambertW - Lambert's W function, the (real) solution W of x=WeW. Log1PlusX - The natural logarithm of 1+x. Pow - A number raised to an integer power.

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• Inconsistent movement / line-of-sight around obstacles on a hexagonal grid

  - by Darq

  In a roguelike game I've been working on, one of my core design goals has been to allow the player to "Play the game, not the grid." In essence, I want the player's positioning to be tactical because of elements in the game world, not simply because some grid tiles are more advantageous than others, in relation to enemies. I am fine with world geometry not being realistic, but it needs to be consistent. In this process I have ran into most of the common problems (Square tiles? Diagonal movement, LOS, corner cases, etc.) and have moved to a hexagonal tile grid. For the most part this has been great, and I've not had too many inconsistencies. Recently however I have been stumped by the following: Points A and B are both distance 4 from the player (red lines). Line-of-sight to both are blocked by walls (black tiles). However, due to the hexagonal grid, A can be reached in 4 moves, whereas B requires 5 moves (blue lines). On a hex grid, "shortest path" seems divorced from "direct path", there may be multiple shortest paths to any point, but there is only one direct path (or two in some situations). This is fine, geometry need not be realistic. However this also seems inconsistent, similar obstacles are more effective in some positions than in others. A player running away from an enemy should be able to run in any direction, increasing the distance between the two actors. However when placing obstacles or traps between themselves and enemies, the player is best served by running in one of the six directions that don't have multiple shortest paths. Is there a way to rationalise this? Am I missing something that makes this behaviour consistent? Or is there a way to make this behaviour consistent? I am most certainly over-thinking this, but as it is one of my goals, I should do it due diligence.

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• Cannot install openjdk on Hardy Heron

  - by infaustus

  I know that Hardy Heron is very old but don't ask why Hardy... I've tried root@vz10931:/etc/apt# apt-get install openjdk-6-jre Reading package lists... Done Building dependency tree Reading state information... Done You might want to run `apt-get -f install' to correct these: The following packages have unmet dependencies: openjdk-6-jre: Depends: libasound2 (> 1.0.14) but it is not going to be installed Depends: libgif4 (>= 4.1.6) but it is not going to be installed Depends: libxtst6 but it is not going to be installed Depends: openjdk-6-jre-headless (>= 6b18-1.8.3-0ubuntu1~8.04.2) but it is not going to be installed vim: Depends: vim-common (= 1:7.1-138+1ubuntu3.1) but 2:7.3.154+hg~74503f6ee649-2ubuntu3 is to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). My sources.list deb http://pl.archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse deb-src http://pl.archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse deb http://pl.archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse deb-src http://pl.archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse deb http://security.ubuntu.com/ubuntu hardy-security main restricted universe multiverse deb-src http://security.ubuntu.com/ubuntu hardy-security main restricted universe multiverse And root@vz10931:/etc/apt# ls -l sources.list.d/ total 0 Please help. When I've tried apt-get install -f I had install new system because everything crashed. Edit: I checked that i have openjdk installed root@vz10931:/var/www/mailer# dpkg --list | grep java iU sun-java6-bin 6.24-1build0.8.04.1 Sun Java(TM) Runtime Environment (JRE) 6 (ar iU sun-java6-jdk 6.24-1build0.8.04.1 Sun Java(TM) Development Kit (JDK) 6 iU sun-java6-jre 6.24-1build0.8.04.1 Sun Java(TM) Runtime Environment (JRE) 6 (ar but when i am trying to start java file: java -jar program.jar error appear -bash: java: command not found

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• Constructs for wrapping a hardware state machine

  - by Henry Gomersall

  I am using a piece of hardware with a well defined C API. The hardware is stateful, with the relevant API calls needing to be in the correct order for the hardware to work properly. The API calls themselves will always return, passing back a flag that advises whether the call was successful, or if not, why not. The hardware will not be left in some ill defined state. In effect, the API calls advise indirectly of the current state of the hardware if the state is not correct to perform a given operation. It seems to be a pretty common hardware API style. My question is this: Is there a well established design pattern for wrapping such a hardware state machine in a high level language, such that consistency is maintained? My development is in Python. I ideally wish the hardware state machine to be abstracted to a much simpler state machine and wrapped in an object that represents the hardware. I'm not sure what should happen if an attempt is made to create multiple objects representing the same piece of hardware. I apologies for the slight vagueness, I'm not very knowledgeable in this area and so am fishing for assistance of the description as well!

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