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• 2D Tile Map for Platformer, XML or SQLite?

  - by Stephen Tierney

  I'm developing a 2D platformer with some uni friends. We've based it upon the XNA Platformer Starter Kit which uses .txt files to store the tile map. While this is simple it does not give us enough control and flexibility with level design. I'm doing some research into whether to store level data in an XML file or in a database like SQLite. Which would be the best for this situation? Do either have any drawbacks (performance etc) compared to the other?

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• my wiki site using mediawiki - databases not found error

  - by Jayapal Chandran

  I had been using mediawiki opensource in my website to display programming articles. Today i tried to access my site but it showed database not found. Mediawiki uses many databases. When i logged in my control panel and checked i can see that most of the databases created by mediawiki is missing so is the reason i am getting this error. I have used mediawiki for two different purposes. It is like two modules. For one the databases are missing and for the other i think the data is corrupt. Do anybody know any issue with mediawiki security or would this be a problem with the webhosting cause we have faced several problems with them initially like before three years and recently the were good. Yet this happened. I have requested to hosting company to look into it and meanwhile i am expecting the help from stackexchange users. How do i check the logs for table deletion?

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• Groups page is blank in SharePoint 2010 [migrated]

  - by Murali Ramakrishnan

  Sometimes it's very confusing how Sharepoint 2010 group creation works Here's a scenario we have been facing from a long time wrt groups in SharePoint 2010 We had requirement of creating a two custom groups followed by creating a custom site through programmatically, For the most case the scenario works as how it is excepted to work. but, out of 1/100 site creation process the groups creation fails, which means we were able to access the group and users associated with it through programmatically. but, when it comes to UI stand point if you try to access the specific group page from the site permissions page - SharePoint returns a BLANK WHITE Page... BLANK WHITE Page... nothing else... Ain't is this a Sharepoint 2010 issue. or anybody had this problem and fixed it. Kindly share your thoughts

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• Allowing users to create an email address

  - by user532887

  I am creating a website and would like to allow users to create their own email forward. Basically, the site will allow groups to create pages on the site, each of which will be able to have its own domain name. I would like users to be able to automatically create an email address on the site that will forward any incoming emails to their own email account. Right now I have to manually set these up in my hosting account control panel but I'm hoping there is a way to do this automatically. Does anyone have experience with doing something similar?

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• Google I/O 2010 - Porting v2 JavaScript Maps API apps to v3

  Google I/O 2010 - Porting v2 JavaScript Maps API apps to v3 Google I/O 2010 - Stepping up: Porting v2 JavaScript Maps API applications to v3 Geo 201 Daniels Lee The JavaScript Maps API v3 is the future of the Google Maps API. To take advantage of the many great features coming to the API you will need to migrate existing v2 applications to v3. This session will guide you through the process, illustrating how easy it is to start reaping the benefits in features and performance. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 10 0 ratings Time: 01:04:07 More in Science & Technology

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• HDMI audio output problems with Radeon card

  - by Matt Robinson

  No matter how much advice I follow, I still cannot get any audio to come out through my HDMI connection. I've tried downloading the latest proprietary FGLRX graphics drivers, and I've also gone into /etc/default/grub and altered GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" into this GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1" But still I cannot get any sound nor can I get HDMI sound output to show up in Sound Settings or Pulse Audio Volume Control. I can get video to show up just fine on my monitor through HDMI so I'm sure this problem is fixable! I know this is an old problem with Ubuntu, but any new strategies into the problem would be much appreciated. With that being said, here are some of my specs: Ubuntu 12.04 LTS AMD Radeon HD 7520G

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• Server-side Input

  - by Thomas

  Currently in my game, the client is nothing but a renderer. When input state is changed, the client sends a packet to the server and moves the player as if it were processing the input, but the server has the final say on the position. This generally works really well, except for one big problem: falling off edges. Basically, if a player is walking towards an edge, say a cliff, and stops right before going off the edge, sometimes a second later, he'll be teleported off of the edge. This is because the "I stopped pressing W" packet is sent after the server processes the information. Here's a lag diagram to help you understand what I mean: http://i.imgur.com/Prr8K.png I could just send a "W Pressed" packet each frame for the server to process, but that would seem to be a bandwidth-costly solution. Any help is appreciated!

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• Do Not Uninstall Flag on Apt?

  - by Daniel C. Sobral

  Does the Debian/Ubuntu package infrastructure has some way of marking packages so that they never get uninstalled, no matter the pinning of other packages? My problem is that, sometimes, packages installed by Puppet (coming from non-standard repositories, of course) cause other packages to get uninstalled -- in particular, openssh-{server,client}. The way this happens is that package A and B depend on different versions of package C. If A is installed and one asks to install B, then the version of C changes. The new version of C is incompatible with A, so A gets uninstalled. The funny thing is that the process is then reversed, as, on the next run, Puppet notices that A is not installed and tries to install it. So, basically, I want to make sure A never gets uninstalled, which would prevent B from getting installed. That would be reported as an error, making me aware of the issue. If anyone cares, Puppet uses the following command to install packages: /usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install <package>

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• Programming language features that help to catch bugs early

  - by Christian Neumanns

  Do you know any programming language features that help to detect bugs early in the software development process - ideally at compile-time or else as early as possible at run-time? Examples of well-known and effective bug-reducing features are: Static typing and generic types: type incompatibility errors are detected by the compiler Design by Contract (TM), also called Contract Programming: invalid values are quickly detected at runtime (through preconditions, postconditions and class invariants) Unit testing I ask this question in the context of improving an object-oriented programming language (called Obix) which has been designed from the ground up to 'make it easy to quickly write reliable code'. Besides the features mentioned above this language also incorporates other Fail-fast features such as: Objects are immutable by default Void (null) values are not allowed by default The aim is to add more Fail-fast concepts to the language. If you know other features which help to write less error-prone code then please let us know. Thank you.

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• subprocess installed post-installation script returned error exit code 1

  - by Laura quintero

  I had installed snort on ubuntu 11.04 and uninstall it because I had problems, to reinstall it leaves a problem: Reading package lists ... done Building dependency tree Reading state information ... done Calculating upgrade ... ready 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. 0 B will be used for additional disk space after this operation. Do you want to continue [S / n]? s Configuring snort (2.8.5.2-9.1) ... * Stopping Network Intrusion Detection System snort * - No running snort instance found * Starting Network Intrusion Detection System snort [fail] invoke-rc.d: initscript snort, action "start" failed. dpkg: error processing snort (- configure): subprocess installed post-installation script returned error exit code 1 Errors were encountered while processing: snort E: Sub-process / usr / bin / dpkg Returned an error code (1) any solution? Commands allready used apt-get clean apt-get remove snort sudo apt-get dist-upgrade dpkg - remove - force-remove-reinstreq snort and nothing.

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• Something in the world of Firewall Hosted SSL VPN's

  - by AreYouSerious

  I run a Physical firewall at my residence. Call me paranoid, but I appreciate the added security. I have been working to get the VPN to work properly, but had until today not managed this. I worked with ensuring that the VPN configurations were correct, that the port filters were correct,  I could connect to the Firewall GUI, but never to the VPN. Turns out that in W7, if you add a key, it suddenly works.Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNELAdd DWORD(32-bit) - SendExtraRecord --> value 2 and voila, suddenly your presented with the login screen. I won't mention the specific vendor, as they don't have this listed in their fixes... but there are several venders where this is an issue. So, if you are having an issue connecting to an SSL VPN (web vpn) this might just be the solution that you need.

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• Permanent redirect to different domain followed by temporary redirect to folder

  - by Ricardo Amaral

  I have old-domain.com which I want to migrate to new-domain.com. However, the content on the old domain is, well, old. And I'm currently in the process of redesigning my whole site. My idea is to do a permanent (301) redirect from old-domain.com to new-domain.com so that search engines know about the new domain and forget about the old one. But since the content is old I was thinking to do a temporary (302) redirect from new-domain.com to new-domain.com/old/ until the new content/site is ready to be published. Is this, for some reason, a bad idea? Or there's nothing wrong with it? One last thing... If I go with this, what should I do when the new content is ready? Should I just remove the 302 redirect and that's it, or should I do something else to notify search engines that the temporary redirect is over?

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• HP Pavilion tx2000 - Wifi adapter no longer works after moving from 12.04 to a 12.10 clean install

  - by Marek L.

  I have a HP Pavilion tx2000 that I have been running Ubuntu 12.04 on for a couple of months without any problems (wifi worked great) until yesterday when my hard drive failed. I replaced the hard drive and decided to install Ubuntu 12.10. Unlike 12.04, the wifi did not work after the installation finished and all the updates where installed (over Ethernet). The network drop down in the top right didn't even show a wireless option. I Googled about for a bit and found some solutions that seemed like they might work. Unfortunately they did not. Here is what I tried: sudo apt-get remove bcmwl-kernel-source sudo apt-get install b43-fwcutter sudo apt-get install firmware-b43-lpphy-installer Restart the computer. And the wifi still didn't work. At which point I panicked a bit and tried to undo the previous commands by running: sudo apt-get remove b43-fwcutter firmware-b43-lpphy-installer sudo apt-get install bcmwl-kernel-source Restart the computer. The wifi still doesn't work. This is where I stopped because I have no idea what I am doing and don't want to mess something up. The network drop down still doesn't show a wireless option and the hardware wifi switch on the laptop is amber (it turns blue when the wifi is on). Using the hardware switch does not change the color. Output from: sudo lspci ... 08:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) ... Output from: sudo lshw -class network *-network UNCLAIMED description: Network controller product: BCM4322 802.11a/b/g/n Wireless LAN Controller vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:08:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:d1100000-d1103fff ... Output from: sudo rfkill list all 0: hp-wifi: Wireless LAN Soft blocked: no Hard blocked: yes UPDATE: After writing up this question tried the following command: sudo rfkill unblock all At first it didn't do anything but after running it about four times, sudo rfkill list all now returns: 0: hp-wifi: Wireless LAN Soft blocked: no Hard blocked: no But the network menu still does not have a wireless option and the hardware switch still glows amber. Pushing the hardware switch turns the hard block back on and I have to run sudo rfkill unblock all multiple times again to turn it off. Any help is appreciated! Update 2: Full output from sudo lspci -nn: 00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] RS780 Host Bridge [1022:9600] 00:01.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (int gfx) [1022:9602] 00:04.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 0) [1022:9604] 00:05.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 1) [1022:9605] 00:06.0 PCI bridge [0604]: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 2) [1022:9606] 00:11.0 SATA controller [0106]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1002:4391] 00:12.0 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] 00:12.1 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0 USB OHCI1 Controller [1002:4398] 00:12.2 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] 00:13.0 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397] 00:13.1 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0 USB OHCI1 Controller [1002:4398] 00:13.2 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] 00:14.0 SMBus [0c05]: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller [1002:4385] (rev 3a) 00:14.1 IDE interface [0101]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 IDE Controller [1002:439c] 00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) [1002:4383] 00:14.3 ISA bridge [0601]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller [1002:439d] 00:14.4 PCI bridge [0604]: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge [1002:4384] 00:14.5 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1002:4399] 00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Family 11h Processor HyperTransport Configuration [1022:1300] (rev 40) 00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Family 11h Processor Address Map [1022:1301] 00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Family 11h Processor DRAM Controller [1022:1302] 00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Family 11h Processor Miscellaneous Control [1022:1303] 00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Family 11h Processor Link Control [1022:1304] 01:05.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RS780M/RS780MN [Mobility Radeon HD 3200 Graphics] [1002:9612] 08:00.0 Network controller [0280]: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01) 09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 02)

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• Computer Networks UNISA - Chap 14 &ndash; Insuring Integrity &amp; Availability

  - by MarkPearl

  After reading this section you should be able to Identify the characteristics of a network that keep data safe from loss or damage Protect an enterprise-wide network from viruses Explain network and system level fault tolerance techniques Discuss issues related to network backup and recovery strategies Describe the components of a useful disaster recovery plan and the options for disaster contingencies What are integrity and availability? Integrity – the soundness of a networks programs, data, services, devices, and connections Availability – How consistently and reliably a file or system can be accessed by authorized personnel A number of phenomena can compromise both integrity and availability including… security breaches natural disasters malicious intruders power flaws human error users etc Although you cannot predict every type of vulnerability, you can take measures to guard against the most damaging events. The following are some guidelines… Allow only network administrators to create or modify NOS and application system users. Monitor the network for unauthorized access or changes Record authorized system changes in a change management system’ Install redundant components Perform regular health checks on the network Check system performance, error logs, and the system log book regularly Keep backups Implement and enforce security and disaster recovery policies These are just some of the basics… Malware Malware refers to any program or piece of code designed to intrude upon or harm a system or its resources. Types of Malware… Boot sector viruses Macro viruses File infector viruses Worms Trojan Horse Network Viruses Bots Malware characteristics Some common characteristics of Malware include… Encryption Stealth Polymorphism Time dependence Malware Protection There are various tools available to protect you from malware called anti-malware software. These monitor your system for indications that a program is performing potential malware operations. A number of techniques are used to detect malware including… Signature Scanning Integrity Checking Monitoring unexpected file changes or virus like behaviours It is important to decide where anti-malware tools will be installed and find a balance between performance and protection. There are several general purpose malware policies that can be implemented to protect your network including… Every compute in an organization should be equipped with malware detection and cleaning software that regularly runs Users should not be allowed to alter or disable the anti-malware software Users should know what to do in case the anti-malware program detects a malware virus Users should be prohibited from installing any unauthorized software on their systems System wide alerts should be issued to network users notifying them if a serious malware virus has been detected. Fault Tolerance Besides guarding against malware, another key factor in maintaining the availability and integrity of data is fault tolerance. Fault tolerance is the ability for a system to continue performing despite an unexpected hardware or software malfunction. Fault tolerance can be realized in varying degrees, the optimal level of fault tolerance for a system depends on how critical its services and files are to productivity. Generally the more fault tolerant the system, the more expensive it is. The following describe some of the areas that need to be considered for fault tolerance. Environment (Temperature and humidity) Power Topology and Connectivity Servers Storage Power Typical power flaws include Surges – a brief increase in voltage due to lightening strikes, solar flares or some idiot at City Power Noise – Fluctuation in voltage levels caused by other devices on the network or electromagnetic interference Brownout – A sag in voltage for just a moment Blackout – A complete power loss The are various alternate power sources to consider including UPS’s and Generators. UPS’s are found in two categories… Standby UPS – provides continuous power when mains goes down (brief period of switching over) Online UPS – is online all the time and the device receives power from the UPS all the time (the UPS is charged continuously) Servers There are various techniques for fault tolerance with servers. Server mirroring is an option where one device or component duplicates the activities of another. It is generally an expensive process. Clustering is a fault tolerance technique that links multiple servers together to appear as a single server. They share processing and storage responsibilities and if one unit in the cluster goes down, another unit can be brought in to replace it. Storage There are various techniques available including the following… RAID Arrays NAS (Storage (Network Attached Storage) SANs (Storage Area Networks) Data Backup A backup is a copy of data or program files created for archiving or safekeeping. Many different options for backups exist with various media including… These vary in cost and speed. Optical Media Tape Backup External Disk Drives Network Backups Backup Strategy After selecting the appropriate tool for performing your servers backup, devise a backup strategy to guide you through performing reliable backups that provide maximum data protection. Questions that should be answered include… What data must be backed up At what time of day or night will the backups occur How will you verify the accuracy of the backups Where and for how long will backup media be stored Who will take responsibility for ensuring that backups occurred How long will you save backups Where will backup and recovery documentation be stored Different backup methods provide varying levels of certainty and corresponding labour cost. There are also different ways to determine which files should be backed up including… Full backup – all data on all servers is copied to storage media Incremental backup – Only data that has changed since the last full or incremental backup is copied to a storage medium Differential backup – Only data that has changed since the last backup is coped to a storage medium Disaster Recovery Disaster recovery is the process of restoring your critical functionality and data after an enterprise wide outage has occurred. A disaster recovery plan is for extreme scenarios (i.e. fire, line fault, etc). A cold site is a place were the computers, devices, and connectivity necessary to rebuild a network exist but they are not appropriately configured. A warm site is a place where the computers, devices, and connectivity necessary to rebuild a network exists with some appropriately configured devices. A hot site is a place where the computers, devices, and connectivity necessary to rebuild a network exists and all are appropriately configured.

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• Disqus Comment Form Missing from Posts

  - by Saad

  I decided to transition from IntenseDebate to Disqus for the blog. So I uninstalled ID via their uninstall process (you upload the template to them, they remove code, you reupload your new template onto the site). Then I went to install Disqus into the site through their Blogger widget method. The problem is that there is no comment form present on any of the blog posts' pages. For example, when you click on the 'Comments' link it jumps to #disqus-thread but there is no thread there. So is there any fix that I can do in order to make the comment form appear? I checked Disqus' knowledgebase for Blogger installation but as far as I can tell my template should be compatible.

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• Release build vs nightly build

  - by Tuomas Hietanen

  Hi! A typical solution is to have a CI (Continuous Integration) build running on a build server: It will analyze the source code, make build (in debug) and run tests, measure test coverage, etc. Now, another build type usually known is "Nightly build": do slow stuff like create code documents, make a setup package, deploy to test environment, and run automatic (smoke or acceptance) tests against the test environment, etc. Now, the question: Is it better to have a third separate "Release build" as release build? Or do "Nightly build" in release mode and use it as a release? What are you using in your company? (The release build should also add some kind of tag to source control of potential product version.)

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• Presenting at Roanoke Code Camp Saturday!

  - by andyleonard

  Introduction I am honored to once again be selected to present at Roanoke Code Camp ! An Introductory Topic One of my presentations is titled "I See a Control Flow Tab. Now What?" It's a Level 100 talk for those wishing to learn how to build their very first SSIS package. This highly-interactive, demo-intense presentation is for beginners and developers just getting started with SSIS. Attend and learn how to build SSIS packages from the ground up . Designing an SSIS Framework I'm also presenting...(read more)

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• Managing the Transition to IFRS

  As countries around the world announce and begin their move to adopting IFRS what can companies learn from those that have already travelled this path? Nigel Youell, Product Marketing Director for Performance Management Applications at Oracle talks to David Jones, Director at PWC, who has worked with multi-national companies across Europe helping them to make this transition and to improve their financial reporting in the process. This podcast offers those who have not yet started, or are currently undertaking, the IFRS journey the chance to learn from David's considerable experience on how to make IFRS an opportunity for improvement rather than just an enforced change.

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• BizTalk Server 2010 Beta available

  - by Rajesh Charagandla

  BizTalk Server 2010 Beta - Click Here to Download Overview: BizTalk Server 2010 offers significant enhancements to help integrate heterogeneous Line-of-business systems with Windows .NET and SharePoint based applications to optimize user productivity, gain business efficiency and increase agility . BizTalk Server 2010 allow .Net developers to take advantage of BizTalk services right out of the box to rapidly build solutions that need to integrate transactions and data from applications like SAP, Mainframes, MS Dynamics and Oracle. Similarly SharePoint developers can seamlessly use BizTalk services directly through the new Business Connectivity Services in SharePoint 2010. BizTalk Server 2010 includes new data mapping & transformation tool to dramatically reduce the development time to mediate data exchange between disparate systems. It also provide a new single dashboard to manage performance parameters and streamline deployments from development to test to production. BizTalk 2010 includes new, scalable Trading Partner Management (TPM) model with a graphical interface for flexible management of business partner relationships and efficient on-boarding process.

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• When to do Code Review

  - by mcass20

  We have recently moved to a scrum process and are working on tasks and user stories inside of sprints. We would like to do code reviews frequently to make them less daunting. We are thinking that doing them on a user story level but are unsure how to branch our code to account for this. We are using VS and TFS 2010 and we are a team of 6. We currently branch for features but are working on changing to branching for scrum. We do not currently use shelvesets and don't really want to implement if there are other techniques available. How do you recommend we implement code review per user story?

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• JCP Calendar for 2013 - First EC Meeting 15-16 January

  - by Heather VanCura

  The JCP 2013 calendar and EC Meeting schedule has now been finalized and published :-). This year the EC will be holding meetings in the San Francisco Bay Area in January, and also in September, scheduled around the JavaOne San Francisco Conference; and, Credit Suisse will host the May EC Meeting in Zurich, Switzerland.  The first JCP EC Meeting of 2013 will be a Face to Face Meeting in Santa Clara, California USA, hosted by Intel.  We are of in the midst preparing the agenda now, but it will include a 2012 annual review, JSR Spec Lead presentations & updates, as well as JSR 358, A major revision of the Java Community Process, Expert Group session. You can view meeting materials and minutes from the JCP EC Meetings on JCP.org. The JCP also plans to meet with the Java User Group Leaders attending the User Group Leaders Summit being held at Oracle Redwood Shores location 14-16 January.

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• Multiple volumetric lights

  - by notabene

  I recently read this GPU GEMS 3 article Volumetric Light Scattering as a Post-Process. I like the idea to add volumetric light property to realtime render i'm working on. Question is will it work for multiple lights? Our renderer uses one render pass per light and uses additive blending to sum incoming light. I'm mostly convinced that it have to work nice. Do you agree? Maybe there can be problem where light rays crosses each other.

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• What does "general purpose system" mean for Java SE Embedded?

  - by Majid Azimi

  The Oracle website says this about Java SE Embedded license: development is free, but royalties are required upon deployment on anything other than general purpose systems What does "general purpose system" mean here? We have a sensor network around the country. On each box we have installed, there is a micro controller based board that gets data from the environment and send data on serial port to a ARM based embedded board. On this board system there is a Java process which reads and submits data to our central server using JMS. Is this categorized as general purpose system? Sorry I'm asking this here. We are in Iran, there is no Oracle office here to ask.

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• Dual Screen with 12.04 ATI randr extension is not present

  - by Trevor Pearson

  Here's my problem I have two screens. One is a 22"led monitor and the other is 42 inch led tv. In windows 7 I run xbmc on the second monitor. I'm trying to mimic the same function in setting xbmc to display on the tv only. So I installed the latest x64 linux drivers from ATI. I configured (using the catalyst control panel) using single display (multi desktop) I then got a white screen with black x so I enable xinerama. with xinerama enable I got the displays to work correctly, however I received an error when I tried to enter display settings to change the launcher location. the error message was " "randr extension not present =" So I tried to install libxandr2 using terimal but here's what I get trev@Lrig:~$ sudo get-apt install libxander2 [sudo] password for trev: sudo: get-apt: command not found I'm at a loss now because I can't find a solution for the xandr error message. I'f my specs are important amd athx2 6400+ ghz 8 gigs ram radeon hd6950

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• Develop secureness first or as a later step?

  - by MattyD

  The question Do you actively think about security when coding? asks about security mindset while programming. Obviously, a developer does need to think about security while coding — SQL injection, password security, etc. However, as far as the real, fully-formed security, especially the tricky problems that may not be immediately obvious, should I be concerned with tackling these throughout the development process, or should it be a step of its own in later development? I was listening to a podcast on Security Now and they mentioned about how a lot of the of the security problems found in Flash were because when Flash was first developed it wasn't built with security in mind (because it didn't need to) — therefore Flash has major security flaws at its core. I know that no one would want to actively disagree with "think security first" as a best practice, but many companies do not follow best practices. So, what is the correct approach to balance between needing to get the product done and developing it securely?

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