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• How to analyze a scenario where a bug didn't get caught and adjust development workflow to prevent similar errors

  - by durron597

  I had a bug that was really difficult to track down, because all the unit tests were green, but the production application didn't work properly. Here's what happened: I had a filter class that set my application to ignore data that was not in some specified time windows. The unit test, which seemed thorough to me, turned green. Additionally, my integration tests also produced results as expected. Production, however, did not work. As a result of the first two bullets, this problem was very difficult to find. It turned out the problem was that my test dates were using my time zone (America/Chicago) but the production data was providing dates in UTC, which I did not realize, and the logic for the filter wasn't correct for UTC dates. (I was using joda time DateTime objects). Where did my workflow break down? Did I fail to produce a spec that specified that the logic needed to handle dates in any time zone? Did I fail to thoroughly consider all cases at the unit test level? Did I fail to insure the integration test was sufficiently similar to production? Other? What changes can I make to my workflow to better prevent this sort of mistake in the future? How can I more effectively debug a problem when there is an issue in production but not in testing?

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• CodePlex Daily Summary for Wednesday, October 17, 2012

  CodePlex Daily Summary for Wednesday, October 17, 2012Popular ReleasesD3 Loot Tracker: 1.5.5: Compatible with 1.05.Test Management eXtensions PowerShell module: TMX 0.4.5: Bugfix in BackUp-TMXTestResults: 1. adding escape characters to sring data (at least, part) 2. ErrorRecord is now supported as a string Known issue: only one screenshot per test result.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...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.Global Stock Exchange (Hobby Project): Global Stock Exchange - Invst Banking (Hobby Proj): Initial VersionMagelia 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 UTC datetime and timezone support .net 4.5 and Visual Studio 2012 migration client magelia global refactoring nugget package http://nuget.org/packages/Magelia.Webstore.Client burst optimisation burst time improvment (multithreading, index, ...) current burst is still active when a new burst is generating bugfixes version 2.1.254.1RazorSourceGenerator: RazorSourceGenerator v1.0 Installer: RazorSourceGenerator v1.0 InstallerJayData - 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.AcDown????? - AcDown Downloader Framework: AcDown????? v4.2: ??●AcDown??????????、??、??、???????。????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。 ●??????AcPlay?????，??????、????????????????。 ● AcDown??????????????????，????????????????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ???? 32??64? ???Linux ????(1)????????Windows XP???，????????.NET Framework 2.0???(x86)，?????"?????????"??? (2)???????????Linux???，????????Mono?? ??2...PHPExcel: PHPExcel 1.7.8: See Change Log for details of the new features and bugfixes included in this release, and methods that are now deprecated. Note changes to the PDF Writer: tcPDF is no longer bundled with PHPExcel, but should be installed separately if you wish to use that 3rd-Party library with PHPExcel. Alternatively, you can choose to use mPDF or DomPDF as PDF Rendering libraries instead: PHPExcel now provides a configurable wrapper allowing you a choice of PDF renderer. See the documentation, or the PDF s...ALM Assessment Guidance: Community Value-Adds: Important: This download has been created using ALM Ranger bits by the community, for the community. Although ALM Rangers were involved in the process, the content has not been through their quality review. Please post your candid feedback and improvement suggestions to the Community tab of this Codeplex project. DirectX Tool Kit: October 12, 2012: October 12, 2012 Added PrimitiveBatch for drawing user primitives Debug object names for all D3D resources (for PIX and debug layer leak reporting)Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.70: Fixed issue described in discussion #399087: variable references within case values weren't getting resolved.GoogleMap Control: GoogleMap Control 6.1: Some important bug fixes and couple of new features were added. There are no major changes to the sample website. Source code could be downloaded from the Source Code section selecting branch release-6.1. Thus just builds of GoogleMap Control are issued here in this release. Update 14.Oct.2012 - Client side access fixed NuGet Package GoogleMap Control 6.1 NuGet Package FeaturesBounds property to provide ability to create a map by center and bounds as well; Setting in markup <artem:Goog...mojoPortal: 2.3.9.3: see release notes on mojoportal.com http://www.mojoportal.com/mojoportal-2393-released Note that we have separate deployment packages for .NET 3.5 and .NET 4.0, but we recommend you to use .NET 4, we will probably drop support for .NET 3.5 once .NET 4.5 is available The deployment package downloads on this page are pre-compiled and ready for production deployment, they contain no C# source code and are not intended for use in Visual Studio. To download the source code see getting the lates...New Projects1327on17jabbr: helloAESP: Projeto AESPAutoStor: Egyetemi kurzus keretében megvalósuló alkalmazás, melynek célja egy automatikus raktározó rendszer szimulációja, objektum-orientált megvalósítással.BetterPlaceBooking: 3rd semester project for DM76 Group 3BizMate: BizMate is a Web based Accounting systemDeneme: deneme yazisiDomainSharp: Integrated development environment for design of domain-specific languages and subsequent development in such languages.EasyTwitter: EasyTwitter it's a simple .NET library where you can use twitter in your web applications or win forms applications. EasyTwitter stills in developmentEDM Designer Extender: Entity Framework Designer Extender that provides new design time properties and a template item to generate DbContext classes.Formition Password Safe (Open Source): Formition Password Safe (Open Source) for Windows 7 is a free high functionality password tool to manage your passwords and other pieces of information.g1p2_web: sport club web site based on c# and mssqlGibbsLDASharp: GibbsLDASharp is a C# implementation of Latent Dirichlet Allocation (LDA) using Gibbs Sampling technique for parameter estimation and inference. Intelligent Assistant Soccer Manager: Intelligent Assistant Soccer Manager, or IASM for short, is a decision support system that fully support condition based deploy of Fantacalcio® soccer teamIshaanOnDAL: Creating DAL Using class ObjectKeks - A 2D Graphics Engine in Java (jre7): Keks is an upcoming Java 2D Graphics Engine with the promise to become a Game Engine in the future.LDR Installer: LDR Installer to easily install security updates in hotfix mode.Live SDK with C# + REST: Usar Live SDK com API REST em qualquer sabor de windows. Use Live SDK with REST API in any flavor of windows.MacSonuclari: project to show soccer match result to for windows phone devices mozcms: mozcms for .NET 4.0 MVC 4.0!MS_Descriptions_Changer: This is utility change MS_Descriptions attribute on MS SQL Server 2005-2008 for Tables and Columns.Onestop.Contrib.DistributedEvict: Onestop.Contrib.DistributedEvict is an advanced module that has 2 primary features for managing cache in a web farm: Output Cache Evict & Remote SignalsOrchard Scripting Extensions: Core module for running scripts inside Orchard.Orchard Scripting Extensions: PHP: A child module for Orchard Scripting Extensions for running PHP code inside Orchard.Page Generated Skin Object for DotNetNuke: The Page Generated Skin Object for DotNetNuke displays the time taken to generate the current page in your custom DNN skin. ProductStore: this project is demo for mvc4, ef codefirst...Remote Controlled Switch for all RC Receivers.: AVR Tiny based simple switch for any rc receiver. Allows to turn off / on lights, sound effect, retracts chassis, using free servo channel. Report Generator in C#: This is a library used to generate reports.Resharper text localization add-in: Text localization plugin for Resharper 7.0 and some plugins development documentationRoad Addicts: Road Addicts is a mix between a strategy and a traffic simulation game.Sistema Distribuido de Pedidos de Insumos Médicos: This is school projectSplitOS: SplitOS - The user-friendly Text OSSQL Server Connection Auditor (SSCA): SSCA helps you test your database audit solution's effectiveness at auditing Microsoft SQL Server connections by automating DB connections, results, and logs.TCP Cellular Radio Driver: Addresses TCP mode shortcomings in the CellularRadio driver provided by GHI Electronics for the Seeed module. Allows transparent data connection over TCP.test1325on17: hellotesttom10162012git01: fds fdsUMK Game: Game Edukasi 3D Tatatertib LalulintasWebMatrix Extension Documentation - Staging: WebMatrix Extensión Development ServiceWhipstaff: Whipstaff is a PoC library for designing a common UI library leveraging WPF, ReactiveUI and DHGMS Data Manager. It is written in C#Windows 8 Store Apps - Tutoriales Paso a Paso: No hay mejor forma de aprender a escribir código, que leyendo código de otros. Conocé aquí tutoriales completos para crear tu primer app para Windows 8 Store. Yet Another Expression Parser - Reverse Polish Notation - C#: Following project contains a class library with simple Reverse Polish Notation implementation.

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• Automate RAC Cluster Upgrades using EM12c

  - by HariSrinivasan

  One of the most arduous processes  in DB maintenance is upgrading Databases across major versions, especially for complex RAC Clusters.With the release of Database Plug-in  (12.1.0.5.0), EM12c Rel 3 (12.1.0.3.0)  now supports automated upgrading of RAC Clusters in addition to Standalone Databases. This automation includes: Upgrade of the complete Cluster across the nodes. ( Example: 11.1.0.7 CRS, ASM, RAC DB  ->   11.2.0.4 or 12.1.0.1 GI, RAC DB)  Best practices in tune with your operations, where you can automate upgrade in steps: Step 1: Upgrade the Clusterware to Grid Infrastructure (Allowing you to wait, test and then move to DBs). Step 2: Upgrade RAC DBs either separately or in group (Mass upgrade of RAC DB's in the cluster). Standard pre-requisite checks like Cluster Verification Utility (CVU) and RAC checks Division of Upgrade process into Non-downtime activities (like laying down the new Oracle Homes (OH), running checks) to Downtime Activities (like Upgrading Clusterware to GI, Upgrading RAC) there by lowering the downtime required. Ability to configure Back up and Restore options as a part of this upgrade process. You can choose to : a. Take Backup via this process (either Guaranteed Restore Point (GRP) or RMAN) b. Set the procedure to pause just before the upgrade step to allow you to take a custom backup c. Ignore backup completely, if there are external mechanisms already in place.  High Level Steps: Select the Procedure "Upgrade Database" from Database Provisioning Home page. Choose the Target Type for upgrade and the Destination version Pick and choose the Cluster, it picks up the complete topology since the clusterware/GI isn't upgraded already Select the Gold Image of the destination version for deploying both the GI and RAC OHs Specify new OH patch, credentials, choose the Restore and Backup options, if required provide additional pre and post scripts Set the Break points in the procedure execution to isolate Downtime activities Submit and track the procedure's execution status.  The animation below captures the steps in the wizard.  For step by step process and to understand the support matrix check this documentation link. Explore the functionality!! In the next blog, will talk about automating rolling Upgrades of Databases in Physical Standby Data Guard environment using Transient Logical Standby.

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• Problem with SANE and CardScan

  - by TiuTalk

  I have a CardScan 60 II device and installed SANE in my Ubuntu 10.10 laptop. The problem is I can't make scanimage find the device. Quote: $ sudo sane-find-scanner # sane-find-scanner will now attempt to detect your scanner. If the # result is different from what you expected, first make sure your # scanner is powered up and properly connected to your computer. # No SCSI scanners found. If you expected something different, make sure that # you have loaded a kernel SCSI driver for your SCSI adapter. found USB scanner (vendor=0x08f0 [Corex Technologies Corporation], product=0x1000 [Corex CardScan 60], chip=LM9832/3) at libusb:006:002 # Your USB scanner was (probably) detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # Not checking for parallel port scanners. # Most Scanners connected to the parallel port or other proprietary ports # can't be detected by this program. But I can't find the device: $ sudo scanimage -L No scanners were identified. If you were expecting something different, check that the scanner is plugged in, turned on and detected by the sane-find-scanner tool (if appropriate). Please read the documentation which came with this software (README, FAQ, manpages).

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• How to create a deb package that installs a series of files

  - by fossfreedom

  I would like to create a brand new deb package to install series of files. If at all possible, I would like to untar the folder containing these files as part of the installation into a known folder location. Failing that, some knowledge how to package the source folders and files would be very useful. Question is - is this possible and if so - how? Lets give an example: ~/mypluginfolder/ contains the files x, y, a subfolder called abc and inside that another file called z. I want to tar this folder: tar -cvf myfiles.tar ~/mypluginfolder I presume my debian package would look like myfiles.tar.gz myfiles+ppafoss_0.1-1/ myfiles.tar DEBIAN changelog, compat, control, install, rules source Is it possible to somehow untar myfiles.tar to a known folder location for example /usr/share/rhythmbox/plugins/ Thus the final result would be: /usr/share/rhythmbox/plugins/mypluginfolder /usr/share/rhythmbox/plugins/mypluginfolder\x /usr/share/rhythmbox/plugins/mypluginfolder\y /usr/share/rhythmbox/plugins/mypluginfolder\abc\z If - presuming launchpad needs source, advice is sought as to where I should drop the source folders and files into the deb package structure. This will eventually will become a series of individual launchpad PPA packages. What I prefer (but may not be able to achieve...) is to keep my packaging to a minimum - create a series of packages from a template and adjust the bare minimum (changelog etc + the tar file/file & folder structure).

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• Where are task scheduler event files stored on Windows Server 2008?

  - by MacGyver

  I tried setting up triggers in Task Scheduler Windows Server 2008, but Microsoft needs to fix a bug that I documented on Stack Overflow. So I can't use triggers until they fix this bug. Basically the Task Scheduler doesn't trigger an event that has a Result Code of 2147942402. http://stackoverflow.com/questions/10933033/windows-server-2008-task-scheduler-trigger-xml-syntax-for-email-notification-ta In the mean time, I'd like to write a task that runs .NET code that queries the log/event files programmatically every 15 minutes and sends success/failure emails based on the events that occured for the given tasks in task scheduler. Here's where the XPath is stored for the Task Trigger XML tab (that I can't rely on): C:\Windows\System32\Tasks\ I cannot find where the events (or log files containing the event ids) of each task are stored. Does anyone know where to find these log files? The log name is "Microsoft-Windows-TaskScheduler/Operational".

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• Packages not showing up in created APT repository

  - by David

  I created an APT repository using deb-scanpackages, and it seemed to go well. When I did a apt-get update on another server, the Packages.gz file was retrieved, and all seemed well - until I went to search for the packages contained in that repository (all packages are created locally). Several recommendations suggested reprepro; I tried that. Same result - except I had to rebuild the packages with the Priority and Section lines in the control file (nothing says this anywhere). The reprepro utility also generates a complicated directory structure which required rewriting the repository entry on the requesting server. I then found that the arch directory referenced i386 and not amd64 (which was requested by the requesting server). Is it possible that the AMD64 system isn't seeing packages compiled for i386? Searching the *Packages files in /var/lib/apt/lists show that the only packages for i386 are those I added (the other files are for the server - Ubuntu 10.04.2 LTS). The server the packages were built on is Ubuntu 10.04.2 LTS i686; the requesting server is x86_64. I found some discussion at the Debian AMD64FAQ but it claims to be obsolete. It makes mention of an extended syntax for repository listings for APT, and a command dpkg-subarchitecture - neither of which work on the local AMD64 server. Do I have to build two different sets of packages?

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• Is Oracle certified to run on VMWare?

  - by Mike Dietrich

  This question in similar occurences gets asked during every Upgrade Workshop at least once. People would like to know if they can run an Oracle Database or Oracle Real Application Clusters or Oracle Grid Control or Oracle Fusion Middleware or ... in an VM environment with VMWare's virtualisation products. And the answer is: Yes, you can!! But ... there's a fine print you should take care on before setting up virtual environments with a different solution than XEN based Oracle VM. Please read Note:942852.1 - VMWare Certification for Oracle Products and Note:249212.1 - Support Position for Oracle Products Running on VMWare Virtualized Environments for further details: Support Status for VMware Virtualized Environments Oracle has not certified any of its products on VMware virtualized environments. Oracle Support will assist customers running Oracle products on VMware in the following manner: Oracle will only provide support for issues that either are known to occur on the native OS, or can be demonstrated not to be as a result of running on VMware. If a problem is a known Oracle issue, Oracle support will recommend the appropriate solution on the native OS. If that solution does not work in the VMware virtualized environment, the customer will be referred to VMware for support. When the customer can demonstrate that the Oracle solution does not work when running on the native OS, Oracle will resume support, including logging a bug with Oracle Development for investigation if required. If the problem is determined not to be a known Oracle issue, we will refer the customer to VMware for support. When the customer can demonstrate that the issue occurs when running on the native OS, Oracle will resume support, including logging a bug with Oracle Development for investigation if required. NOTE: Oracle has not certified any of its products on VMware. For Oracle RAC, Oracle will only accept Service Requests as described in this note on Oracle RAC 11.2.0.2 and later releases.

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• How to get hp printer to select correct trays on samba shared printer

  - by dgermann

  My first post here. Clean install of 12.04.1. Previously 10.04. Have been running a p2035n printer without problem. Now, no matter what paper tray I select it prints to the top "by-pass" feeder--not the lower main tray. And when I select to print to manual feed, it does not wait for me to put in paper (like it used to), but prints immediately. The printer is on a samba share and is physically plugged into a WinXP machine. Its uri is smb:///computername/p2035n. I have tried several of the offered drivers for this hp machine, and even tried generic-laser. Same result on all. Here are some other things I have tried (losing 2-3 hours of my time!): hp-check -t reports “error: User needs to be member of group 'lp' to enable print, scan & fax. ” and “warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend to function in HPLIP.” needed to download HPLIP 3.12.11 followed http://hplipopensource.com/hplip-web/install/install/index.html sh hplip-3.12.11-run says that before setup logout and then on login run hp-setup hp-setup could not find the printer ran hp-check -t again, found I was not in group lp ran hp-check --fix and it fixed that problem, asks for reboot rebooted after running update manager (new kernel) and hp-check -t shows no errors this time all the tray selections end up on the bypass tray hp-setup still cannot find the printer So is there a way to make this work? Thanks! :- Doug.

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• my LaCie 500 Gb not mounted on 11.10

  - by pooo

  My external USB drive was recognized with 10.x versions of Ubuntu but since 11.x I am getting stuck, I had tried everything I read in forums but still the same error: 4956.401052] usb 2-1.4: new high speed USB device number 14 using ehci_hcd [ 4956.539216] scsi14 : uas [ 4956.740955] scsi 14:0:0:0: Direct-Access LaCie Rugged FW USB3 1081 PQ: 0 ANSI: 4 [ 4963.256055] scsi 14:0:0:0: uas_eh_abort_handler tag 0 [ 4963.256076] scsi 14:0:0:0: uas_eh_device_reset_handler tag 0 [ 4963.256085] scsi 14:0:0:0: uas_eh_target_reset_handler tag 0 [ 4963.256091] scsi 14:0:0:0: uas_eh_bus_reset_handler tag 0 [ 4963.328122] usb 2-1.4: reset high speed USB device number 14 using ehci_hcd [ 4963.468743] scsi 14:0:0:0: Device offlined - not ready after error recovery [ 4963.468813] scsi 14:0:0:0: rejecting I/O to offline device [ 4963.468831] scsi 14:0:0:0: rejecting I/O to offline device [ 4963.469204] scsi 14:0:0:1: uas_sense_old: urb length 26 disagrees with IU sense data length 510, using 18 bytes of sense data [ 4963.512104] sd 14:0:0:0: Attached scsi generic sg3 type 0 [ 4994.253779] sd 14:0:0:0: uas_eh_abort_handler tag 0 [ 4994.253802] sd 14:0:0:0: uas_eh_device_reset_handler tag 0 [ 4994.253809] sd 14:0:0:0: uas_eh_target_reset_handler tag 0 [ 4994.253815] sd 14:0:0:0: uas_eh_bus_reset_handler tag 0 [ 4994.325880] usb 2-1.4: reset high speed USB device number 14 using ehci_hcd [ 4994.466488] sd 14:0:0:0: Device offlined - not ready after error recovery [ 4994.466555] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466573] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466582] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466588] sd 14:0:0:0: [sdc] READ CAPACITY failed [ 4994.466593] sd 14:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 4994.466600] sd 14:0:0:0: [sdc] Sense not available. [ 4994.466608] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466616] sd 14:0:0:0: [sdc] Write Protect is off [ 4994.466622] sd 14:0:0:0: [sdc] Mode Sense: 00 00 00 00 [ 4994.466629] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466635] sd 14:0:0:0: [sdc] Asking for cache data failed [ 4994.466640] sd 14:0:0:0: [sdc] Assuming drive cache: write through [ 4994.467003] sd 14:0:0:0: [sdc] Attached SCSI disk if I am trying on an old ubuntu, the drive is mounted,

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• Dividing up spritesheet in Javascript

  - by hustlerinc

  I would like to implement an object for my spritesheets in Javascript. I'm very new to this language and game-developement so I dont really know how to do it. My guess is I set spritesize to 16, use that to divide as many times as it fits on the spritesheet and store this value as "spritesheet". Then a for(i=0;i<spritesheet.length;i++) loop running over the coordinates. Then tile = new Image(); and tile.src = spritesheet[i] to store the individual sprites based on their coordinates on the spritesheet. My problem is how could I loop trough the spritesheet and make an array of that? The result should be similar to: var tile = Array( "img/ground.png", "img/crate.png" ); If possible this would be done with one single object that i only access once, and the tile array would be stored for later reference. I couldn't find anything similar searching for "javascript spritesheet". Edit: I made a small prototype of what I'm after: function Sprite(){ this.size = 16; this.spritesheet = new Image(); this.spritesheet.src = 'img/spritesheet.png'; this.countX = this.spritesheet.width / 16; this.countY = this.spritesheet.height / 16; this.spriteCount = this.countX * this.countY; this.divide = function(){ for(i=0;i<this.spriteCount;i++){ // define spritesheet coordinates and store as tile[i] } } } Am I on the right track?

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• Doubling the DPI with a shader?

  - by Mathias Lykkegaard Lorenzen

  I'm developing a game where the map is generated with Perlin Noise, but on the CPU. I am generating some perlin noise onto a texture with a small size, and then I stretch it out to the whole screen to simulate a map. The reason for the CPU generating the noise is that I want it to look the same on all devices. Now, here's the end-result. Please ignore the bullets and the explosion on the picture. What matters is the background (the black/gray pixels) and the ground (the brown-ish pixels). They are rendered to the same texture through perlin noise. However, this doesn't look very pretty. So I was wondering if it would be possible to double the amount of pixels using a shader, and rounding edges at the same time? In other words, improve the DPI. I'm using SharpDX with DirectX 11, through its toolkit feature. But any help that'll lead me in the right direction (for instance through HLSL) would be a great help. Thanks in advance.

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• SQL query duplicating results [on hold]

  - by Ben

  I have written a query that results in data being retrieved for the top 5 customers in my table per account manager. Here is the query: SELECT account_manager_id, mgap_ska_id, total FROM (SELECT account_manager_id, mgap_ska_id, mgap_growth + mgap_recovery AS total, @grp_rank := IF(@current_accmanid = account_manager_id, @grp_rank + 1, 1) AS grp_rank, @current_accmanid := account_manager_id FROM mgap_orders ORDER BY total DESC ) ranked WHERE grp_rank <= 5 and here is the result of the query: account_manager_id mgap_ska_id total 159840 5062352 61569.21 159840 5062352 61569.21 159840 5062352 61569.21 159840 5062352 61569.21 159840 5062352 61569.21 160023 5024546 52244.29 160023 5024546 52244.29 160023 5024546 52244.29 160023 5024546 52244.29 160023 5024546 52244.29 159669 5323292 50126.38 159669 5323292 50126.38 159669 5323292 50126.38 159669 5323292 50126.38 159669 5323292 50126.38 As you can see the query is partially working as needed, except Im getting duplicates for mgap_ska_id whereas it should be five individual mgap_ska_id numbers. and here is a sample of my data: mgap_ska_id account_manager_id mgap_growth mgap_recovery 5057810 64154 0 1160.78 5178114 24456 0 5773.42 5292421 160338 0 5146.04 5414091 24408 0 104.14 5057810 64154 0 1160.78 Can anyone see where Ive gone wrong in my query and how/where I might correct the error so I get the 5 top individual customers (mgap_ska_id) instead of the duplicated top single customer?

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• Error instantiating Texture2D in MonoGame for Windows 8 Metro Apps

  - by JimmyBoh

  I have an game which builds for WindowsGL and Windows8. The WindowsGL works fine, but the Windows8 build throws an error when trying to instantiate a new Texture2D. The Code: var texture = new Texture2D(CurrentGame.SpriteBatch.GraphicsDevice, width, 1); // Error thrown here... texture.setData(FunctionThatReturnsColors()); You can find the rest of the code on Github. The Error: SharpDX.SharpDXException was unhandled by user code HResult=-2147024809 Message=HRESULT: [0x80070057], Module: [Unknown], ApiCode: [Unknown/Unknown], Message: The parameter is incorrect. Source=SharpDX StackTrace: at SharpDX.Result.CheckError() at SharpDX.Direct3D11.Device.CreateTexture2D(Texture2DDescription& descRef, DataBox[] initialDataRef, Texture2D texture2DOut) at SharpDX.Direct3D11.Texture2D..ctor(Device device, Texture2DDescription description) at Microsoft.Xna.Framework.Graphics.Texture2D..ctor(GraphicsDevice graphicsDevice, Int32 width, Int32 height, Boolean mipmap, SurfaceFormat format, Boolean renderTarget) at Microsoft.Xna.Framework.Graphics.Texture2D..ctor(GraphicsDevice graphicsDevice, Int32 width, Int32 height) at BrewmasterEngine.Graphics.Content.Gradient.CreateHorizontal(Int32 width, Color left, Color right) in c:\Projects\Personal\GitHub\BrewmasterEngine\BrewmasterEngine\Graphics\Content\Gradient.cs:line 16 at SampleGame.Menu.Widgets.GradientBackground.UpdateBounds(Object sender, EventArgs args) in c:\Projects\Personal\GitHub\BrewmasterEngine\SampleGame\Menu\Widgets\GradientBackground.cs:line 39 at SampleGame.Menu.Widgets.GradientBackground..ctor(Color start, Color stop, Int32 scrollamount, Single scrollspeed, Boolean horizontal) in c:\Projects\Personal\GitHub\BrewmasterEngine\SampleGame\Menu\Widgets\GradientBackground.cs:line 25 at SampleGame.Scenes.IntroScene.Load(Action done) in c:\Projects\Personal\GitHub\BrewmasterEngine\SampleGame\Scenes\IntroScene.cs:line 23 at BrewmasterEngine.Scenes.Scene.LoadScene(Action`1 callback) in c:\Projects\Personal\GitHub\BrewmasterEngine\BrewmasterEngine\Scenes\Scene.cs:line 89 at BrewmasterEngine.Scenes.SceneManager.Load(String sceneName, Action`1 callback) in c:\Projects\Personal\GitHub\BrewmasterEngine\BrewmasterEngine\Scenes\SceneManager.cs:line 69 at BrewmasterEngine.Scenes.SceneManager.LoadDefaultScene(Action`1 callback) in c:\Projects\Personal\GitHub\BrewmasterEngine\BrewmasterEngine\Scenes\SceneManager.cs:line 83 at BrewmasterEngine.Framework.Game2D.LoadContent() in c:\Projects\Personal\GitHub\BrewmasterEngine\BrewmasterEngine\Framework\Game2D.cs:line 117 at Microsoft.Xna.Framework.Game.Initialize() at BrewmasterEngine.Framework.Game2D.Initialize() in c:\Projects\Personal\GitHub\BrewmasterEngine\BrewmasterEngine\Framework\Game2D.cs:line 105 at Microsoft.Xna.Framework.Game.DoInitialize() at Microsoft.Xna.Framework.Game.Run(GameRunBehavior runBehavior) at Microsoft.Xna.Framework.Game.Run() at Microsoft.Xna.Framework.MetroFrameworkView`1.Run() InnerException: Is this an error that needs to be solved in MonoGame, or is there something that I need to do differently in my engine and game?

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• SQL SERVER – Get Schema Name from Object ID using OBJECT_SCHEMA_NAME

  - by pinaldave

  Sometime a simple solution have even simpler solutions but we often do not practice it as we do not see value in it or find it useful. Well, today’s blog post is also about something which I have seen not practiced much in codes. We are so much comfortable with alternative usage that we do not feel like switching how we query the data. I was going over forums and I noticed that at one place user has used following code to get Schema Name from ObjectID. USE AdventureWorks2012 GO SELECT s.name AS SchemaName, t.name AS TableName, s.schema_id, t.OBJECT_ID FROM sys.Tables t INNER JOIN sys.schemas s ON s.schema_id = t.schema_id WHERE t.name = OBJECT_NAME(46623209) GO Before I continue let me say I do not see anything wrong with this script. It is just fine and one of the way to get SchemaName from Object ID. However, I have been using function OBJECT_SCHEMA_NAME to get the schema name. If I have to write the same code from the beginning I would have written the same code as following. SELECT OBJECT_SCHEMA_NAME(46623209) AS SchemaName, t.name AS TableName, t.schema_id, t.OBJECT_ID FROM sys.tables t WHERE t.name = OBJECT_NAME(46623209) GO Now, both of the above code give you exact same result. If you remove the WHERE condition it will give you information of all the tables of the database. Now the question is which one is better – honestly – it is not about one is better than other. Use the one which you prefer to use. I prefer to use second one as it requires less typing. Let me ask you the same question to you – which method to get schema name do yo use? and Why? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL System Table, SQL Tips and Tricks, T SQL, Technology

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• How to present a stable data model in a public API that allows internal data structures to be changed without breaking the public view of the data?

  - by Max Palmer

  I am in the process of developing an application that allows users to write C# scripts. These scripts allow users to call selected methods and to access and manipulate data in a document. This works well, however, in the development version, scripts access the document's (internal) data structures directly. This means that if we were to change the internal data model/structure, there is a good chance that someone's script will no longer compile. We obviously want to prevent this breaking change from happening, but still want to allow the user to write sensible C# code (whilst not restricting how we develop our internal data model as a result). We therefore need to decouple our scripting API and its data structures from our internal methods and data structures. We've a few ideas as to how we might allow the user to access a what is effectively a stable public version of the document's internal data*, but I wanted to throw the question out there to someone who might have some real experience of this problem. NB our internal document's data structure is quite complex and it could be quite difficult to wrap. We know we want to expose as little as possible in our public API, especially as once it's out there, it's out there for good. Can anyone help? How do scripting languages / APIs decouple their public API and data structures from their internal data structures? Is there no real alternative to having to write a complex interaction layer? If we need to do this, what's a good approach or pattern for wrapping complex data structures that include nested objects, including collections? I've looked at the API facade pattern, which looks like it's trying to address these kinds of issues, but are there alternatives? *One idea is to build a data facade that is kept stable across versions of our application. The facade exposes a set of facade data objects that are used in the script code. These maintain backwards compatibility and wrap access to our internal document's data model.

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• Samba shares won't automount on boot from fstab

  - by kelvin

  This question seems to have been asked a few times, but doesn't seem anybody has really solved it yet, at least not for my specific circumstance. I have FSAT setup to mount a CIFs share, but on boot up the share never gets mounted. However, if i run mount -a after boot up, it mounts everything just fine. Here's what my fstab looks like. Ignore the commented ones... I just did a few for testing purposes right now. //192.168.1.97/media /mnt/samba cifs credentials=/home/xbmc/.smbcredentials,rw,file_mode=0777,dir_mode=0777,sec=ntlm,auto 0 0 #//192.168.1.97/media/TV\040Shows /home/xbmc/TV\040Shows cifs credentials=/home/xbmc/.smbcredentials,rw,file_mode=0777,dir_mode=0777,sec=ntlm,auto //192.168.1.97/media/Movies /home/xbmc/Movies cifs credentials=/home/xbmc/.smbcredentials,rw,file_mode=0777,dir_mode=0777,sec=ntlm,auto 0 0 //192.168.1.97/media/Music /home/xbmc/Music cifs credentials=/home/xbmc/.smbcredentials,rw,file_mode=0777,dir_mode=0777,sec=ntlm,auto 0 0 #//192.168.1.97/media/3\040-\040My\040Pictures /home/xbmc/Pictures cifs credentials=/home/xbmc/.smbcredentials,rw,file_mode=0777,dir_mode=0777,sec=ntlm,auto #//192.168.1.97/media/XBMC /home/xbmc/Admin cifs credentials=/home/xbmc/.smbcredentials,rw,file_mode=0777,dir_mode=0777,sec=ntlm,auto Have seen a few things on the internet where it was believed its because the share isn't available yet (i.e. wifi not connected yet, etc) when it's attempting to mount. 1) Is there anyway to confirm that's the problem, 2) IF so, is there a solution? Is there some way to put a delay in fstab? Or how might i write a script to run mount -a a certain amount of time after boot? Found the option _netdev from a little research, included that in fstab but still the same result. Thanks for your help.

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• Understanding Service Compensation part of Industrial SOA series

  - by JuergenKress

  Some of the most important SOA design patterns that we have successfully applied in projects will be described in this article. These include the Compensation pattern and the UI mediator pattern, the Common Data Format pattern and the Data Access pattern. All of these patterns are included in Thomas Erl's book, "SOA Design Patterns", and are presented here in detail, together with our practical experiences. We begin our "best of" SOA pattern collection with the Compensation pattern. Compensation is required in error situations in an SOA, as multiple atomic service operations cannot generally be linked with classic transactions this would violate the principle of loose coupling. An error situation of this sort will occur, particularly if service operations are combined into processes or new services during orchestration or by applying the Composite pattern, and the transaction bracket has to be expanded as a result. We need mechanisms to undo the effects of individual services (the status changes in the overall system) and to ensure that a consistent system state is maintained at all times, so as to preserve system integrity. For the Compensation pattern, we would like to address the following questions: Why is compensation important in relation to SOA? How is the topic of compensation linked with the topic of transactions? What are the challenges with regard to compensation... Read the full article in the Service Technology Magazine or at OTN. Share your comments and feedback on the Industrial SOA series by using the hashtag #industrialsoa. Missed an article of the Industrial SOA series visit the overview at OTN. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: Industrial SOA,SOA,SOA Service Compensation,Community,Oracle SOA,Oracle BPM,OPN,Jürgen Kress

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• What to Return with Async CRUD methods

  - by RualStorge

  While there is a similar question focused on Java, I've been in debates with utilizing Task objects. What's the best way to handle returns on CRUD methods (and similar)? Common returns we've seen over the years are: Void (no return unless there is an exception) Boolean (True on Success, False on Failure, exception on unhandled failure) Int or GUID (Return the newly created objects Id, 0 or null on failure, exception on unhandled failure) The updated Object (exception on failure) Result Object (Object that houses the manipulated object's ID, Boolean or status field to with success or failure indicated, Exception information if there was one, etc) The concern comes into play as we've started moving over to utilizing C# 5's Async functionality, and this brought the question up of how we should handle CRUD returns large-scale. In our systems we have a little of everything in regards to what we return, we want to make these returns standardized... Now the question is what is the recommended standard? Is there even a recommended standard yet? (I realize we need to decide our standard, but typically we do so by looking at best practices, see if it makes sense for us and go from there, but here we're not finding much to work with)

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• Suggestions for connecting .NET WPF GUI with Java SE Server aoo

  - by Sam Goldberg

  BACKGROUND We are building a Java (SE) trading application which will be monitoring market data and sending trade messages based on the market data, and also on user defined configuration parameters. We are planning to provide the user with a thin client, built in .NET (WPF) for managing the parameters, controlling the server behavior, and viewing the current state of the trading. The client doesn't need real-time updates; it will instead update the view once every few seconds (or whatever interval is configured by the user). The client has about 6 different operations it needs to perform with the server, for example: CRUD with configuration parameters query subset of the data receive updates of current positions from server It is possible that most of the different operations (except for receiving data) are just different flavors of managing the configuration parameters, but it's too early in our analysis for us to be sure. To connect the client with the server, we have been considering using: SOAP Web Service RESTful service building a custom TCP/IP based API (text or xml) (least preferred - but we use this approach with other applications we have) As best as I understand, pros and cons of the different web service flavors are: SOAP pro: totally automated in .NET (and Java), modifying server side interface require no code changes in communication layer, just running refresh on Web Service reference to regenerate the classes. con: more overhead in the communication layer sending more text, etc. We're not using J2EE container so maybe doesn't work so well with J2SE REST pro: lighter weight, less data. Has good .NET and Java support. (I don't have any real experience with this, so don't know what other benefits it has.) con: client will not be automatically aware if there are any new operations or properties added (?), so communication layer needs to be updated by developer if server interface changes. con: (both approaches) Server cannot really push updates to the client at regular intervals (?) (However, we won't mind if client polls the server to get updates.) QUESTION What are your opinions on the above options or suggestions for other ways to connect the 2 parts? (Ideally, we don't want to put much work into the communication layer, because it's not the significant part of the application so the more off-the-shelf and automated the better.)

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• Is it possible to install Windows Server 2012 on a Dell PowerEdge with PERC S100 card?

  - by Warren P

  According to Dell's own website, the Windows Server 2012 media driver "inbox" does not contain drivers for the Perc S100 controller that is in a Dell PowerEdge T110 II server we'd like to evaluate with Server 2012. I have found drivers only for Server 2008 R2, which is what the server is currently running. Is it possible to upgrade this server? (Booting up the Server 2012 DVD image leads to the expected result that it can not locate the system's hard drives or its hard drive controller card, as the drivers for the PERC S100 are not on the installation DVD image.)

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• Passing javascript array of objects to WebService

  - by Yousef_Jadallah

  Hi folks. In the topic I will illustrate how to pass array of objects to WebService and how to deal with it in your WebService.   suppose we have this javascript code :  <script language="javascript" type="text/javascript"> var people = new Array(); function person(playerID, playerName, playerPPD) { this.PlayerID = playerID; this.PlayerName = playerName; this.PlayerPPD = parseFloat(playerPPD); } function saveSignup() { addSomeSampleInfo(); WebService.SaveSignups(people, SucceededCallback); } function SucceededCallback(result, eventArgs) { var RsltElem = document.getElementById("divStatusMessage"); RsltElem.innerHTML = result; } function OnError(error) { alert("Service Error: " + error.get_message()); } function addSomeSampleInfo() { people[people.length++] = new person(123, "Person 1 Name", 10); people[people.length++] = new person(234, "Person 2 Name", 20); people[people.length++] = new person(345, "Person 3 Name", 10.5); } </script> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } poeple :is the array that we want to send to the WebService. person :The function –constructor- that we are using to create object to our array. SucceededCallback : This is the callback function invoked if the Web service succeeded. OnError : this is the Error callback function so any errors that occur when the Web Service is called will trigger this function. saveSignup : This function used to call the WebSercie Method (SaveSignups), the first parameter that we pass to the WebService and the second is the name of the callback function.   Here is the body of the Page :<body> <form id="form1" runat="server"> <asp:ScriptManager ID="ScriptManager1" runat="server"> <Services> <asp:ServiceReference Path="WebService.asmx" /> </Services> </asp:ScriptManager> <input type="button" id="btn1" onclick="saveSignup()" value="Click" /> <div id="divStatusMessage"> </div> </form> </body> </html> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }     Then main thing is the ServiceReference and it’s path "WebService.asmx” , this is the Web Service that we are using in this example.     A web service will be used to receive the javascript array and handle it in our code :using System; using System.Web; using System.Web.Services; using System.Xml; using System.Web.Services.Protocols; using System.Web.Script.Services; using System.Data.SqlClient; using System.Collections.Generic; [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [ScriptService] public class WebService : System.Web.Services.WebService { [WebMethod] public string SaveSignups(object [] values) { string strOutput=""; string PlayerID="", PlayerName="", PlayerPPD=""; foreach (object value in values) { Dictionary<string, object> dicValues = new Dictionary<string, object>(); dicValues = (Dictionary<string, object>)value; PlayerID = dicValues["PlayerID"].ToString(); PlayerName = dicValues["PlayerName"].ToString(); PlayerPPD = dicValues["PlayerPPD"].ToString(); strOutput += "PlayerID = " + PlayerID + ", PlayerName=" + PlayerName + ",PlayerPPD= " + PlayerPPD +"<br>"; } return strOutput; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The first thing I implement System.Collections.Generic Namespace, we need it to use the Dictionary Class. you can find in this code that I pass the javascript objects to array of object called values, then we need to deal with every separate Object and implicit it to Dictionary<string, object> . The Dictionary Represents a collection of keys and values Dictionary<TKey, TValue> TKey : The type of the keys in the dictionary TValue : The type of the values in the dictionary. For more information about Dictionary check this link : http://msdn.microsoft.com/en-us/library/xfhwa508(VS.80).aspx   Now we can get the value for every element because we have mapping from a set of keys to a set of values, the keys of this example is :  PlayerID ,PlayerName,PlayerPPD, this created from the original object person.    Ultimately,this Web method return the values as string, but the main idea of this method to show you how to deal with array of object and convert it to  Dictionary<string, object> object , and get the values of this Dictionary.   Hope this helps,

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• Mutating Programming Language?

  - by MattiasK

  For fun I was thinking about how one could build a programming language that differs from OOP and came up with this concept. I don't have a strong foundation in computer science so it might be common place without me knowing it (more likely it's just a stupid idea :) I apologize in advance for this somewhat rambling question :) Anyways here goes: In normal OOP methods and classes are variant only upon parameters, meaning if two different classes/methods call the same method they get the same output. My, perhaps crazy idea, is that the calling method and class could be an "invisible" part of it's signature and the response could vary depending on who call's an method. Say that we have a Window object with a Break() method, now anyone (who has access) could call this method on Window with the same result. Now say that we have two different objects, Hammer and SledgeHammer. If Break need to produce different results based on these we'd pass them as parameters Break(IBluntObject bluntObject) With a mutating programming language (mpl) the operating objects on the method would be visible to the Break Method without begin explicitly defined and it could adopt itself based on them). So if SledgeHammer calls Window.Break() it would generate vastly different results than if Hammer did so. If OOP classes are black boxes then MPL are black boxes that knows who's (trying) to push it's buttons and can adapt accordingly. You could also have different permission sets on methods depending who's calling them rather than having absolute permissions like public and private. Does this have any advantage over OOP? Or perhaps I should say, would it add anything to it since you should be able to simply add this aspect to methods (just give access to a CallingMethod and CallingClass variable in context) I'm not sure, might be to hard to wrap one's head around, it would be kinda interesting to have classes that adopted themselves to who uses them though. Still it's an interesting concept, what do you think, is it viable?

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• Is it normal for Java /Tomcat to keep checking for java_pid<nnnn>.hprof?

  - by Chris

  I was monitoring my JVM running Apache Tomcat 6, running on Windows, and I noticed that every 3 seconds or so the JVM process (C:\Tomcat\bin\tomcat6.exe) is polling to see whether or not C:\Tomcatcat\java_pid3748.hprof exists, where 3748 is the Windows process ID. I haven't seen write to the hprof file, just test for existence. (I'm using Sysinternals Process Monitor (procmon.exe) for this monitoring. In procmon the polling shows up as a QueryDirectory operation, which always returns Result "NO SUCH FILE".) Is this normal, or is this a potential red flag? I gather that these hprof files are generated, perhaps among other times, when you enable the -XX:+HeapDumpOnOutOfMemoryError Java flag. I haven't enabled it myself, though I guess it could be enabled somehow in the Tomcat startup scripts.

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• postfix "mail-pipe" alias shellscript creates permissionless files/dirs

  - by Gung Foo

  I am using an alias to a shellscript in postfix... After the script that is called by the shellscript creates a directory it has no permissions at all.. #!/bin/sh umask 002 cat | php /var/www/html/catchmymail rcvemail result is like this: d--------- 2 apache apache 4096 Sep 17 17:25 50 it works for files tho: -rw-rw---- 1 apache apache 5836288 Sep 18 11:21 test Not even setting umask 002 in the shellscript before it hands the mail on changes a thing Setting umask(0002) inside catchmymail has no effect either. Has anyone seen this behaviour before or an idea to save my day?!? This is extremely confusing and actually insane behaviour from what i understand about umask and file permissions.

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