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• Investing in Servers by Intel

  - by Koushal Deshpande

  Originally posted on: http://geekswithblogs.net/BizTalkAndOtherTechs/archive/2013/10/31/investing-in-servers-by-intel.aspxA nice article reference from Intel, refer here. Referees to cloud as well. Choose correctly what you need. 1 Do determine right server for your company. There is no use getting a server that has redundant services but still add to the costs. 2 Do get servers that can be upgraded. A server with limited memory and storage may not be able to keep up with your business growth. The basic memory and storage options might not be sufficient. Consider at least 8GB of RAM and 1 terabyte of hard disk space. 3 Do check the server has at least one Gigabit Ethernet port. This allows high speed transferring of files and increases productivity for your employees. USB and Firewire ports may not be enough as their transfer speed is too low and will affect the productivity of your company. Infinite Technologies is ready to help perform this upgrade. Contact Infinite Technologies now View our other resellers » 4 Do verify that the server comes with documentation. Documentation allows you to make a claim when your server breaks down and is supported by a warranty. 6 Do check the support options for the server from the manufacturer. Different manufacturer has different support options such as maintenance plans and software upgrades. 5 Do always look into the warranty. Get an enhanced warranty that guarantees response and repair time to avoid disruption. 7 Do get server management tools that can be used on any computer. Server management tools should be cross compatible across different operating systems to take into account future PC replacements. 8 Do check the power usage of the servers. Get the right power supply to avoid damaging server hardware and consider the Intel® Xeon® E3 processor to help save on your electricity bills. 9 Do check what built-in security packages are available. Ensure that your server is protected. Built-in security1 helps you save on getting add on security packages.

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• Oracle's Integrated Systems Management and Support Experience

  - by Scott McNeil

  With its recent launch, Oracle Enterprise Manager 11g introduced a new approach to integrated systems management and support. What this means is taking both areas of IT management and vendor support and combining them into one integrated comprehensive and centralized platform. Traditional Ways Under the traditional method, IT operational teams would often focus on running their systems using management tools that weren’t connected to their vendor’s support systems. If you needed support with a product, administrators would often contact the vendor by phone or visit the vendor website for support and then log a service request in order to fix the issues. This method was also very time consuming, as administrators would have to collect their software configurations, operating systems and hardware settings, then manually enter them into an online form or recite them to a support analyst on the phone. For the vendor, they had to analyze all the configuration data to recreate the problem in order to solve it. This approach was very manual, uncoordinated and error-prone where duplication between the customer and vendor frequently occurred. A Better Support Experience By removing the boundaries between support, IT management tools and the customer’s IT infrastructure, Oracle paved the way for a better support experience. This was achieved through integration between Oracle Enterprise Manager 11g and My Oracle Support. Administrators can not only manage their IT infrastructure and applications through Oracle Enterprise Manager’s centralized console but can also receive proactive alerts and patch recommendations right within the console they use day-in-day-out. Having one single source of information saves time and potentially prevents unforeseen problems down the road. All for One, and One for All The first step for you is to allow Oracle Enterprise Manager to upload configuration data into Oracle’s secure configuration repository, where it can be analyzed for potential issues or conflicts for all customers. A fix to a problem encountered by one customer may actually be relevant to many more. The integration between My Oracle Support and Oracle Enterprise Manager allows all customers who may be impacted by the problem to receive a notification about the fix. Once the alert appears in Oracle Enterprise Manager’s console, the administrator can take his/her time to do further investigations using automated workflows provided in Oracle Enterprise Manager to analyze potential conflicts. Finally, administrators can schedule a time to test and automatically apply the fix to all the systems that need it. In the end, this helps customers maintain their service levels without compromise and avoid experiencing unplanned downtime that may result from potential issues or conflicts. This new paradigm of integrated systems management and support helps customers keep their systems secure, compliant, and up-to-date, while eliminating the traditional silos between IT management and vendor support. Oracle’s next generation platform also works hand-in-hand to provide higher quality of service to business users while at the same time making life for administrators less complicated. For more information on Oracle’s integrated systems management and support experience, be sure to visit our Oracle Enterprise Manager 11g Resource Center for the latest customer videos, webcast, and white papers.

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• Troubleshooting Nonpaged and Paged Pool Errors in Windows

  Ben Lye uncovered a memory leak in the nonpaged pool which was crashing his servers with disquieting regularity. Luckily it was relatively easy to troubleshoot, and he's sharing the tools and techniques he used to get his servers back on track in double-quick time.

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• Filtering List Data with a jQuery-searchFilter Plugin

  - by Rick Strahl

  When dealing with list based data on HTML forms, filtering that data down based on a search text expression is an extremely useful feature. We’re used to search boxes on just about anything these days and HTML forms should be no different. In this post I’ll describe how you can easily filter a list down to just the elements that match text typed into a search box. It’s a pretty simple task and it’s super easy to do, but I get a surprising number of comments from developers I work with who are surprised how easy it is to hook up this sort of behavior, that I thought it’s worth a blog post. But Angular does that out of the Box, right? These days it seems everybody is raving about Angular and the rich SPA features it provides. One of the cool features of Angular is the ability to do drop dead simple filters where you can specify a filter expression as part of a looping construct and automatically have that filter applied so that only items that match the filter show. I think Angular has single handedly elevated search filters to first rate, front-row status because it’s so easy. I love using Angular myself, but Angular is not a generic solution to problems like this. For one thing, using Angular requires you to render the list data with Angular – if you have data that is server rendered or static, then Angular doesn’t work. Not all applications are client side rendered SPAs – not by a long shot, and nor do all applications need to become SPAs. Long story short, it’s pretty easy to achieve text filtering effects using jQuery (or plain JavaScript for that matter) with just a little bit of work. Let’s take a look at an example. Why Filter? Client side filtering is a very useful tool that can make it drastically easier to sift through data displayed in client side lists. In my applications I like to display scrollable lists that contain a reasonably large amount of data, rather than the classic paging style displays which tend to be painful to use. So I often display 50 or so items per ‘page’ and it’s extremely useful to be able to filter this list down. Here’s an example in my Time Trakker application where I can quickly glance at various common views of my time entries. I can see Recent Entries, Unbilled Entries, Open Entries etc and filter those down by individual customers and so forth. Each of these lists results tends to be a few pages worth of scrollable content. The following screen shot shows a filtered view of Recent Entries that match the search keyword of CellPage: As you can see in this animated GIF, the filter is applied as you type, displaying only entries that match the text anywhere inside of the text of each of the list items. This is an immediately useful feature for just about any list display and adds significant value. A few lines of jQuery The good news is that this is trivially simple using jQuery. To get an idea what this looks like, here’s the relevant page layout showing only the search box and the list layout:<div id="divItemWrapper"> <div class="time-entry"> <div class="time-entry-right"> May 11, 2014 - 7:20pm<br /> <span style='color:steelblue'>0h:40min</span><br /> <a id="btnDeleteButton" href="#" class="hoverbutton" data-id="16825"> <img src="images/remove.gif" /> </a> </div> <div class="punchedoutimg"></div> <b><a href='/TimeTrakkerWeb/punchout/16825'>Project Housekeeping</a></b><br /> <small><i>Sawgrass</i></small> </div> ... more items here </div> So we have a searchbox txtSearchPage and a bunch of DIV elements with a .time-entry CSS class attached that makes up the list of items displayed. To hook up the search filter with jQuery is merely a matter of a few lines of jQuery code hooked to the .keyup() event handler: <script type="text/javascript"> $("#txtSearchPage").keyup(function() { var search = $(this).val(); $(".time-entry").show(); if (search) $(".time-entry").not(":contains(" + search + ")").hide(); }); </script> The idea here is pretty simple: You capture the keystroke in the search box and capture the search text. Using that search text you first make all items visible and then hide all the items that don’t match. Since DOM changes are applied after a method finishes execution in JavaScript, the show and hide operations are effectively batched up and so the view changes only to the final list rather than flashing the whole list and then removing items on a slow machine. You get the desired effect of the list showing the items in question. Case Insensitive Filtering But there is one problem with the solution above: The jQuery :contains filter is case sensitive, so your search text has to match expressions explicitly which is a bit cumbersome when typing. In the screen capture above I actually cheated – I used a custom filter that provides case insensitive contains behavior. jQuery makes it really easy to create custom query filters, and so I created one called containsNoCase. Here’s the implementation of this custom filter:$.expr[":"].containsNoCase = function(el, i, m) { var search = m[3]; if (!search) return false; return new RegExp(search, "i").test($(el).text()); }; This filter can be added anywhere where page level JavaScript runs – in page script or a seperately loaded .js file.  The filter basically extends jQuery with a : expression. Filters get passed a tokenized array that contains the expression. In this case the m[3] contains the search text from inside of the brackets. A filter basically looks at the active element that is passed in and then can return true or false to determine whether the item should be matched. Here I check a regular expression that looks for the search text in the element’s text. So the code for the filter now changes to:$(".time-entry").not(":containsNoCase(" + search + ")").hide(); And voila – you now have a case insensitive search.You can play around with another simpler example using this Plunkr:http://plnkr.co/edit/hDprZ3IlC6uzwFJtgHJh?p=preview Wrapping it up in a jQuery Plug-in To make this even easier to use and so that you can more easily remember how to use this search type filter, we can wrap this logic into a small jQuery plug-in:(function($, undefined) { $.expr[":"].containsNoCase = function(el, i, m) { var search = m[3]; if (!search) return false; return new RegExp(search, "i").test($(el).text()); }; $.fn.searchFilter = function(options) { var opt = $.extend({ // target selector targetSelector: "", // number of characters before search is applied charCount: 1 }, options); return this.each(function() { var $el = $(this); $el.keyup(function() { var search = $(this).val(); var $target = $(opt.targetSelector); $target.show(); if (search && search.length >= opt.charCount) $target.not(":containsNoCase(" + search + ")").hide(); }); }); }; })(jQuery); To use this plug-in now becomes a one liner:$("#txtSearchPagePlugin").searchFilter({ targetSelector: ".time-entry", charCount: 2}) You attach the .searchFilter() plug-in to the text box you are searching and specify a targetSelector that is to be filtered. Optionally you can specify a character count at which the filter kicks in since it’s kind of useless to filter at a single character typically. Summary This is s a very easy solution to a cool user interface feature your users will thank you for. Search filtering is a simple but highly effective user interface feature, and as you’ve seen in this post it’s very simple to create this behavior with just a few lines of jQuery code. While all the cool kids are doing Angular these days, jQuery is still useful in many applications that don’t embrace the ‘everything generated in JavaScript’ paradigm. I hope this jQuery plug-in or just the raw jQuery will be useful to some of you… Resources Example on Plunker© Rick Strahl, West Wind Technologies, 2005-2014Posted in jQuery  HTML5  JavaScript   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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• Google I/O 2012 - Enterprise Geospatial in the Cloud

  Google I/O 2012 - Enterprise Geospatial in the Cloud Sean Maday, Mano Marks Google now offers a powerful and versatile cloud hosting solution for geospatial data and analysis. Learn how your business can exploit this potential to reduce costs, increase productivity, and deliver services to your employees and developers using familiar tools like Google Earth and the Google Maps API. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 790 9 ratings Time: 55:03 More in Science & Technology

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• Desktop switcher appears to be broken for quick double-switches

  - by Jon Blackburn

  I'm wondering if anyone else has seen this. I have three virtual desktops aligned in a horizontal row. In the middle desktop I have only a single application window. I have keyboard shortcuts mapping to navigate between the desktops. Obviously, I never use the up/down arrows because I only have one row of workspaces. Here's the problem, which only started to happen after I installed 12.04.1: When I rapidly hit to go from workspace 1 to workspace 3, the window on workspace 2 gets moved to workspace 1. I have checked using both Unity and Gnome3, and the behavior is the same under both. If I change back to the default workspace setup (a 2x2 grid of desktops) things seem to settle down (i.e., no wandering windows). Not every type of application window behaves the same way. I couldn't get a Chrome browser to jump from 2 to 1, but both Terminal and Terminator exhibit the behavior. Any thoughts? Better workarounds? Thanks in advance.

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• The JDEdwards EnterpriseOne PreSales University

  - by Julien Haye

  Istanbul NOV 5-9 Wednesday, NOV 7 - It is raining outside and I am sitting in my hotel room (#106) in Istanbul and create my first blog entry. Today this blog was enabled and I am excited to have the ability to share my (first) thoughts with the EMEA JDE Partner Community. I am here in Istanbul because we are currently running the JDEdwards PreSales University Event series. This PreSales University is an established event series which we deliver the fifth time now and the first time in the ECEMEA region. Delegates value the openness and competence from the Product Strategy and Product Development Team from Denver and India. Together with the regional Oracle PreSales team we had very valuable discussions around product features and functions and about the business value of the new delivered applications and tools. Additionally the event provides endless opportunities to exchange ideas with other JD Edwards Partner and the Oracle PreSales Team. With its focus on sharing and learning, best practice, user experience and transforming technologies, delegates will leave this event with an abundance of new ideas and best practices to try for your coming projects and existing customer implementations. A day out of the office gives delegates a chance to gain a new perspective on their business processes. Everybody sees better ways of working just by being immersed in an environment where the focus is on using products more effectively. Apps Track: Highly concentrated participants in Istanbul listening to Jeff Erickson presenting the news about OneView Reporting. Jeff: We believe “The things you said”. The event is organized into two tracks, one for Apps and one for Tech. Everybody was able to learn new features and functions and how to position this products. The focus was on the new Apps release 9.1 and Tools Release 9.1.2 and their Value Propositions. For all topics hands-on exercises has been given to the participants. Even very experienced senior consultants did learn a lot from this event. In total we have 55 people registered and we still have some more content to deliver. By the way: Istanbul is a nice place to be. I already booked my next trip to this beautiful city. In two weeks we deliver the JD Edwards EECIS Executive Forum again in Istanbul. Once again a tough Agenda. I will let you know if I had the ability to have a walk outside and see a bit more of this beautiful city. At least I expect to have a different room number. Many greetings Hartmut WieseOracle Alliances & Channels EMEA

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• Common SOA Problems by C2B2

  - by JuergenKress

  SOA stands for Service Oriented Architecture and has only really come together as a concrete approach in the last 15 years or so, although the concepts involved have been around for longer. Oracle SOA Suite is based around the Service Component Architecture (SCA) devised by the Open SOA collaboration of companies including Oracle and IBM. SCA, as used in SOA suite, is designed as a way to crystallise the concepts of SOA into a standard which ensures that SOA principles like the separation of application and business logic are maintained. Orchestration or Integration? A common thing to see with many people who are beginning to either build a new SOA based infrastructure, or move an old system to be service oriented, is confusion in the purpose of SOA technologies like BPEL and enterprise service buses. For a lot of problems, orchestration tools like BPEL or integration tools like an ESB will both do the job and achieve the right objectives; however it’s important to remember that, although a hammer can be used to drive a screw into wood, that doesn’t mean it’s the best way to do it. Service Integration is the act of connecting components together at a low level, which usually results in a single external endpoint for you to expose to your customers or other teams within your organisation – a simple product ordering system, for example, might integrate a stock checking service and a payment processing service. Process Orchestration, however, is generally a higher level approach whereby the (often externally exposed) service endpoints are brought together to track an end-to-end business process. This might include the earlier example of a product ordering service and couple it with a business rules service and human task to handle edge-cases. A good (but not exhaustive) rule-of-thumb is that integrations performed by an ESB will usually be real-time, whereas process orchestration in a SOA composite might comprise processes which take a certain amount of time to complete, or have to wait pending manual intervention. BPEL vs BPMN For some, with pre-existing SOA or business process projects, this decision is effectively already made. For those embarking on new projects it’s certainly an important consideration for those using Oracle SOA software since, due to the components included in SOA Suite and BPM Suite, the choice of which to buy is determined by what they offer. Oracle SOA suite has no BPMN engine, whereas BPM suite has both a BPMN and a BPEL engine. SOA suite has the ESB component “Mediator”, whereas BPM suite has none. Decisions must be made, therefore, on whether just one or both process modelling languages are to be used. The wrong decision could be costly further down the line. Design for performance: Read the complete article here. 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 Technorati Tags: C2B2,SOA best practice,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• Let Your Desktop Run Wild and Free with the Mustangs Theme for Windows 7

  - by Asian Angel

  Add the natural, untamed beauty of Utah’s Onaqui mustang herd to your desktop with the Mustangs Theme for Windows 7. The theme comes with sixteen images featuring beautiful mustang photography by Gene Praag. Download the Mustangs Theme [via Softpedia] How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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• Set up linux box for hosting a-z

  - by microchasm

  I am in the process of reinstalling the OS on a machine that will be used to host a couple of apps for our business. The apps will be local only; access from external clients will be via vpn only. The prior setup used a hosting control panel (Plesk) for most of the admin, and I was looking at using another similar piece of software for the reinstall - but I figured I should finally learn how it all works. I can do most of the things the software would do for me, but am unclear on the symbiosis of it all. This is all an attempt to further distance myself from the land of Configuration Programmer/Programmer, if at all possible. I can't find a full walkthrough anywhere for what I'm looking for, so I thought I'd put up this question, and if people can help me on the way I will edit this with the answers, and document my progress/pitfalls. Hopefully someday this will help someone down the line. The details: CentOS 5.5 x86_64 httpd: Apache/2.2.3 mysql: 5.0.77 (to be upgraded) php: 5.1 (to be upgraded) The requirements: SECURITY!! Secure file transfer Secure client access (SSL Certs and CA) Secure data storage Virtualhosts/multiple subdomains Local email would be nice, but not critical The Steps: Download latest CentOS DVD-iso (torrent worked great for me). Install CentOS: While going through the install, I checked the Server Components option thinking I was going to be using another Plesk-like admin. In hindsight, considering I've decided to try to go my own way, this probably wasn't the best idea. Basic config: Setup users, networking/ip address etc. Yum update/upgrade. Upgrade PHP/MySQL: To upgrade PHP and MySQL to the latest versions, I had to look to another repo outside CentOS. IUS looks great and I'm happy I found it! Add IUS repository to our package manager cd /tmp wget http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/x86_64/epel-release-1-1.ius.el5.noarch.rpm rpm -Uvh epel-release-1-1.ius.el5.noarch.rpm wget http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/x86_64/ius-release-1-4.ius.el5.noarch.rpm rpm -Uvh ius-release-1-4.ius.el5.noarch.rpm yum list | grep -w \.ius\. # list all the packages in the IUS repository; use this to find PHP/MySQL version and libraries you want to install Remove old version of PHP and install newer version from IUS rpm -qa | grep php # to list all of the installed php packages we want to remove yum shell # open an interactive yum shell remove php-common php-mysql php-cli #remove installed PHP components install php53 php53-mysql php53-cli php53-common #add packages you want transaction solve #important!! checks for dependencies transaction run #important!! does the actual installation of packages. [control+d] #exit yum shell php -v PHP 5.3.2 (cli) (built: Apr 6 2010 18:13:45) Upgrade MySQL from IUS repository /etc/init.d/mysqld stop rpm -qa | grep mysql # to see installed mysql packages yum shell remove mysql mysql-server #remove installed MySQL components install mysql51 mysql51-server mysql51-devel transaction solve #important!! checks for dependencies transaction run #important!! does the actual installation of packages. [control+d] #exit yum shell service mysqld start mysql -v Server version: 5.1.42-ius Distributed by The IUS Community Project Upgrade instructions courtesy of IUS wiki: http://wiki.iuscommunity.org/Doc/ClientUsageGuide Install rssh (restricted shell) to provide scp and sftp access, without allowing ssh login cd /tmp wget http://dag.wieers.com/rpm/packages/rssh/rssh-2.3.2-1.2.el5.rf.x86_64.rpm rpm -ivh rssh-2.3.2-1.2.el5.rf.x86_64.rpm useradd -m -d /home/dev -s /usr/bin/rssh dev passwd dev Edit /etc/rssh.conf to grant access to SFTP to rssh users. vi /etc/rssh.conf Uncomment or add: allowscp allowsftp This allows me to connect to the machine via SFTP protocol in Transmit (my FTP program of choice; I'm sure it's similar with other FTP apps). rssh instructions appropriated (with appreciation!) from http://www.cyberciti.biz/tips/linux-unix-restrict-shell-access-with-rssh.html Set up virtual interfaces ifconfig eth1:1 192.168.1.3 up #start up the virtual interface cd /etc/sysconfig/network-scripts/ cp ifcfg-eth1 ifcfg-eth1:1 #copy default script and match name to our virtual interface vi ifcfg-eth1:1 #modify eth1:1 script #ifcfg-eth1:1 | modify so it looks like this: DEVICE=eth1:1 IPADDR=192.168.1.3 NETMASK=255.255.255.0 NETWORK=192.168.1.0 ONBOOT=yes NAME=eth1:1 Add more Virtual interfaces as needed by repeating. Because of the ONBOOT=yes line in the ifcfg-eth1:1 file, this interface will be brought up when the system boots, or the network starts/restarts. service network restart Shutting down interface eth0: [ OK ] Shutting down interface eth1: [ OK ] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: [ OK ] Bringing up interface eth1: [ OK ] ping 192.168.1.3 64 bytes from 192.168.1.3: icmp_seq=1 ttl=64 time=0.105 ms And this is where I'm at. I will keep editing this as I make progress. Any tips on how to Configure virtual interfaces/ip based virtual hosts for SSL, setting up a CA, or anything else would be appreciated.

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• Virtual Desktop Provisioning - Vmware View 5.2 Maintenance Questions

  - by Lee J. DeAngelis

  Currently running an environment of about 400 VMware View 5.2 virtual Desktops. The environment runs pretty efficiently but we sometimes run into problems with certain pools from time to time. Just recently we had a pool that was causing high write latency when users logged in. It just happened all of a sudden and had been working fine for weeks. On a hunch we completely broke down the pool and re-provisioned it from a new image. This corrected the problem. In fact every real issue we've had so far was fixed by a recompose or complete break down and re-provisioning of one pool or another.Our environment consists of Cisco UCS and Netapp 3240s using flashcache running VMware View 5.2. My questions are: What are some maintenance best practices other VDI admins are using? How often are you recomposing? rebalancing? re-provisioning? How long should you keep base image snapshots around?

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• Root cannot access /dev/urandom

  - by Darren Newton

  I am trying to generate a GPG key, and I cannot generate enough entropy. So I installed rng-tools and tried following these instructions: http://serverfault.com/questions/214605/gpg-not-enough-entropy When I am logged in as root, and try to run rngd -r /dev/urandom I get the following error: can't open /dev/random: Permission denied I find this disturbing as I am root. This is Ubuntu on a virtual server (via Parallels I believe.)

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• Intel Server Board S3420GP fails to boot with video connected

  - by Riley

  All, Building a new system using an Intel Server Board S3420GP motherboard and an Intel Xeon X3440 processor. Before installing this motherboard into the chassis we want to test that it will actually boot correctly. We have mounted the processor and RAM with no hard drives attached. The boot sequence differs between the next variable: 1) Connecting video results in the system fans ramp up and down, twice, and then the system beeps with the same behavior repeating; the system status light shows "Amber" 2) With no video, the system goes through POST and the diag LEDs show that the system is missing a bootable device Need some assistance identifying why the board would fail to POST with video connected. // Update // Using another Power Supply the system gets passed the fans ramping up and down twice. Video still does not display.

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• Jump handling and gravity

  - by sprawl

  I'm new to game development and am looking for some help on improving my jump handling for a simple side scrolling game I've made. I would like to make the jump last longer if the key is held down for the full length of the jump, otherwise if the key is tapped, make the jump not as long. Currently, how I'm handling the jumping is the following: Player.prototype.jump = function () { // Player pressed jump key if (this.isJumping === true) { // Set sprite to jump state this.settings.slice = 250; if (this.isFalling === true) { // Player let go of jump key, increase rate of fall this.settings.y -= this.velocity; this.velocity -= this.settings.gravity * 2; } else { // Player is holding down jump key this.settings.y -= this.velocity; this.velocity -= this.settings.gravity; } } if (this.settings.y >= 240) { // Player is on the ground this.isJumping = false; this.isFalling = false; this.velocity = this.settings.maxVelocity; this.settings.y = 240; } } I'm setting isJumping on keydown and isFalling on keyup. While it works okay for simple use, I'm looking for a better way handle jumping and gravity. It's a bit buggy if the gravity is increased (which is why I had to put the last y setting in the last if condition in there) on keyup, so I'd like to know a better way to do it. Where are some resources I could look at that would help me better understand how to handle jumping and gravity? What's a better approach to handling this? Like I said, I'm new to game development so I could be doing it completely wrong. Any help would be appreciated.

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• Gartner PCC: A Shovel & Some Ah-Ha's

  - by kellsey.ruppel

  When Gartner Vice President and leading analyst Whit Andrews kicked off the Gartner Portals, Content & Collaboration Summit on Monday, March 12 at the Gaylord Palms in Orlando, FL by bringing a shovel to the stage, eyebrows raised and a few thoughts went through my head. Either this guy plans to go help the construction workers outside construct that new pool at the Gaylord or he took a wrong turn and is at the wrong conference. Oh and how did he get that shovel through airport security? As Whit explained more his objective became more clear…take everything anyone has ever told you about portals and throw it out the window, as portals have evolved and times they are most certainly changing. The future Web is here, available not only on browsers but also via a broad spectrum of access points, including automobiles, consumer electronics and more and more mobile devices. Not merely prevalent, the future Web is also multimedia-driven and operates in real time, driven by mobility, social media, streaming video and other dynamic services. Applications and user experiences are in the midst of an evolution — from the early, simple mobile Web models to today’s Web 2.0 mobile apps and, ultimately, to a world of predominantly Web apps. Additionally, cloud services will forever change how portals and user experience are designed, built, delivered, sourced and managed. So what does this mean for you? Today’s organizations need software that will enable them to not just do their jobs, but to do it in a way that is familiar and easy for them.  What does this mean for IT? Use software and technology as an enabler, not as a roadblock. Overall, we had a great week in Orlando learning about how to improve the user experience, manage content explosion, launch social initiatives, transition to mobile environments and understand cloud and SaaS options.  We had some great conversations throughout the conference and at the Oracle booth. Lots of demonstrations were given of Oracle WebCenter Sites and Oracle Social Network. And as Christie mentioned earlier this week, our Vice President of Product Management and Strategy for WebCenter Loren Weinberg presented on the topic of customer engagement and talked about how organization’s relationships with their customers have fundamentally changed today and the resulting impact that has on their priorities.  Loren also talked about the importance of customer engagement, why that matters now more than ever, and what you can do to help your company or organization succeed in this new world. The question asked in every keynote and session was a simple one: What is your “ah-ha” moment? I personally had quite a few, some of which I’ve captured below. 70% of internal social initiatives eventually fail. By 2014, refusing to communicate with consumers via social media will be as harmful as ignoring emails/phone calls is today. Customer engagement = multi-channel + social & interactive + personal & relevant + optimized. If people choose to talk about your product/company/service, it's because it's remarkable. -- Seth Godin's keynote (one of the highlights of the conference!) The Web will become the primary method used for delivering content and applications to mobile devices. By 2015, 20% of smart phone users worldwide will conduct commerce using context-enriched services on a weekly basis.  86% of customers will pay more for a better customer experience. 6 P's of Quality User Experience. Product. Enabled by: People, Patterns, Process, Profit, Priorities. Did you attend the Gartner Summit? What were your ah-ha moments?

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• Google I/O 2012 - Advancing Accessibility for the Web

  Google I/O 2012 - Advancing Accessibility for the Web Rachel Shearer, Dominic Mazzoni, Charles Chen This session will help you learn through code samples and real world examples how to design and test your web apps for complete accessibility coverage. We will review APIs such as the Text-to-speech (TTS) API, tools like ChromeVox and ChromeShades and how Google products implement solutions today for users with disabilities. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 61 3 ratings Time: 55:25 More in Science & Technology

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• XNA shield effect with a Primative sphere problem

  - by Sparky41

  I'm having issue with a shield effect i'm trying to develop. I want to do a shield effect that surrounds part of a model like this: http://i.imgur.com/jPvrf.png I currently got this: http://i.imgur.com/Jdin7.png (The red likes are a simple texture a black background with a red cross in it, for testing purposes: http://i.imgur.com/ODtzk.png where the smaller cross in the middle shows the contact point) This sphere is drawn via a primitive (DrawIndexedPrimitives) This is how i calculate the pieces of the sphere using a class i've called Sphere (this class is based off the code here: http://xbox.create.msdn.com/en-US/education/catalog/sample/primitives_3d) public class Sphere { // During the process of constructing a primitive model, vertex // and index data is stored on the CPU in these managed lists. List vertices = new List(); List indices = new List(); // Once all the geometry has been specified, the InitializePrimitive // method copies the vertex and index data into these buffers, which // store it on the GPU ready for efficient rendering. VertexBuffer vertexBuffer; IndexBuffer indexBuffer; BasicEffect basicEffect; public Vector3 position = Vector3.Zero; public Matrix RotationMatrix = Matrix.Identity; public Texture2D texture; /// <summary> /// Constructs a new sphere primitive, /// with the specified size and tessellation level. /// </summary> public Sphere(float diameter, int tessellation, Texture2D text, float up, float down, float portstar, float frontback) { texture = text; if (tessellation < 3) throw new ArgumentOutOfRangeException("tessellation"); int verticalSegments = tessellation; int horizontalSegments = tessellation * 2; float radius = diameter / 2; // Start with a single vertex at the bottom of the sphere. AddVertex(Vector3.Down * ((radius / up) + 1), Vector3.Down, Vector2.Zero);//bottom position5 // Create rings of vertices at progressively higher latitudes. for (int i = 0; i < verticalSegments - 1; i++) { float latitude = ((i + 1) * MathHelper.Pi / verticalSegments) - MathHelper.PiOver2; float dy = (float)Math.Sin(latitude / up);//(up)5 float dxz = (float)Math.Cos(latitude); // Create a single ring of vertices at this latitude. for (int j = 0; j < horizontalSegments; j++) { float longitude = j * MathHelper.TwoPi / horizontalSegments; float dx = (float)(Math.Cos(longitude) * dxz) / portstar;//port and starboard (right)2 float dz = (float)(Math.Sin(longitude) * dxz) * frontback;//front and back1.4 Vector3 normal = new Vector3(dx, dy, dz); AddVertex(normal * radius, normal, new Vector2(j, i)); } } // Finish with a single vertex at the top of the sphere. AddVertex(Vector3.Up * ((radius / down) + 1), Vector3.Up, Vector2.One);//top position5 // Create a fan connecting the bottom vertex to the bottom latitude ring. for (int i = 0; i < horizontalSegments; i++) { AddIndex(0); AddIndex(1 + (i + 1) % horizontalSegments); AddIndex(1 + i); } // Fill the sphere body with triangles joining each pair of latitude rings. for (int i = 0; i < verticalSegments - 2; i++) { for (int j = 0; j < horizontalSegments; j++) { int nextI = i + 1; int nextJ = (j + 1) % horizontalSegments; AddIndex(1 + i * horizontalSegments + j); AddIndex(1 + i * horizontalSegments + nextJ); AddIndex(1 + nextI * horizontalSegments + j); AddIndex(1 + i * horizontalSegments + nextJ); AddIndex(1 + nextI * horizontalSegments + nextJ); AddIndex(1 + nextI * horizontalSegments + j); } } // Create a fan connecting the top vertex to the top latitude ring. for (int i = 0; i < horizontalSegments; i++) { AddIndex(CurrentVertex - 1); AddIndex(CurrentVertex - 2 - (i + 1) % horizontalSegments); AddIndex(CurrentVertex - 2 - i); } //InitializePrimitive(graphicsDevice); } /// <summary> /// Adds a new vertex to the primitive model. This should only be called /// during the initialization process, before InitializePrimitive. /// </summary> protected void AddVertex(Vector3 position, Vector3 normal, Vector2 texturecoordinate) { vertices.Add(new VertexPositionNormal(position, normal, texturecoordinate)); } /// <summary> /// Adds a new index to the primitive model. This should only be called /// during the initialization process, before InitializePrimitive. /// </summary> protected void AddIndex(int index) { if (index > ushort.MaxValue) throw new ArgumentOutOfRangeException("index"); indices.Add((ushort)index); } /// <summary> /// Queries the index of the current vertex. This starts at /// zero, and increments every time AddVertex is called. /// </summary> protected int CurrentVertex { get { return vertices.Count; } } public void InitializePrimitive(GraphicsDevice graphicsDevice) { // Create a vertex declaration, describing the format of our vertex data. // Create a vertex buffer, and copy our vertex data into it. vertexBuffer = new VertexBuffer(graphicsDevice, typeof(VertexPositionNormal), vertices.Count, BufferUsage.None); vertexBuffer.SetData(vertices.ToArray()); // Create an index buffer, and copy our index data into it. indexBuffer = new IndexBuffer(graphicsDevice, typeof(ushort), indices.Count, BufferUsage.None); indexBuffer.SetData(indices.ToArray()); // Create a BasicEffect, which will be used to render the primitive. basicEffect = new BasicEffect(graphicsDevice); //basicEffect.EnableDefaultLighting(); } /// <summary> /// Draws the primitive model, using the specified effect. Unlike the other /// Draw overload where you just specify the world/view/projection matrices /// and color, this method does not set any renderstates, so you must make /// sure all states are set to sensible values before you call it. /// </summary> public void Draw(Effect effect) { GraphicsDevice graphicsDevice = effect.GraphicsDevice; // Set our vertex declaration, vertex buffer, and index buffer. graphicsDevice.SetVertexBuffer(vertexBuffer); graphicsDevice.Indices = indexBuffer; graphicsDevice.BlendState = BlendState.Additive; foreach (EffectPass effectPass in effect.CurrentTechnique.Passes) { effectPass.Apply(); int primitiveCount = indices.Count / 3; graphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, vertices.Count, 0, primitiveCount); } graphicsDevice.BlendState = BlendState.Opaque; } /// <summary> /// Draws the primitive model, using a BasicEffect shader with default /// lighting. Unlike the other Draw overload where you specify a custom /// effect, this method sets important renderstates to sensible values /// for 3D model rendering, so you do not need to set these states before /// you call it. /// </summary> public void Draw(Camera camera, Color color) { // Set BasicEffect parameters. basicEffect.World = GetWorld(); basicEffect.View = camera.view; basicEffect.Projection = camera.projection; basicEffect.DiffuseColor = color.ToVector3(); basicEffect.TextureEnabled = true; basicEffect.Texture = texture; GraphicsDevice device = basicEffect.GraphicsDevice; device.DepthStencilState = DepthStencilState.Default; if (color.A < 255) { // Set renderstates for alpha blended rendering. device.BlendState = BlendState.AlphaBlend; } else { // Set renderstates for opaque rendering. device.BlendState = BlendState.Opaque; } // Draw the model, using BasicEffect. Draw(basicEffect); } public virtual Matrix GetWorld() { return /*world */ Matrix.CreateScale(1f) * RotationMatrix * Matrix.CreateTranslation(position); } } public struct VertexPositionNormal : IVertexType { public Vector3 Position; public Vector3 Normal; public Vector2 TextureCoordinate; /// <summary> /// Constructor. /// </summary> public VertexPositionNormal(Vector3 position, Vector3 normal, Vector2 textCoor) { Position = position; Normal = normal; TextureCoordinate = textCoor; } /// <summary> /// A VertexDeclaration object, which contains information about the vertex /// elements contained within this struct. /// </summary> public static readonly VertexDeclaration VertexDeclaration = new VertexDeclaration ( new VertexElement(0, VertexElementFormat.Vector3, VertexElementUsage.Position, 0), new VertexElement(12, VertexElementFormat.Vector3, VertexElementUsage.Normal, 0), new VertexElement(24, VertexElementFormat.Vector2, VertexElementUsage.TextureCoordinate, 0) ); VertexDeclaration IVertexType.VertexDeclaration { get { return VertexPositionNormal.VertexDeclaration; } } } A simple call to the class to initialise it. The Draw method is called in the master draw method in the Gamecomponent. My current thoughts on this are: The direction of the weapon hitting the ship is used to get the middle position for the texture Wrap a texture around the drawn sphere based on this point of contact Problem is i'm not sure how to do this. Can anyone help or if you have a better idea please tell me i'm open for opinion? :-) Thanks.

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• ArchBeat Link-o-Rama for 2012-06-07

  - by Bob Rhubart

  Exalogic Webcast Series: Rethink Your Business Application Deployment Strategy Learn best practices for simplifying IT operations while delivering the application performance that a business needs. These on-demand Sessions include: Faster and Easier: Deploying ERP Applications on Oracle Exalogic Redefining the CRM and E-Commerce Experience with Oracle Exalogic The Road to a Cloud-Enabled, Infinitely Elastic Application Infrastructure Virtualization at Oracle - Six Part Series Links to all six articles in the series by Matthias Pfuetzner and Detlef Drewanz, spanning SPARC and x86. WebCenter Content shared folders for clustering | Kyle Hatlestad A-Team blogger Kyle Hatlestad shares the details on "how the file systems should be split and what options are required." Eclipse DemoCamp - June 2012 - Redwood Shores, CA When: Wednesday, June 13, 2012. 6:00pm - 9:00pm Where: Oracle HQ - 10 Twin Dolphin Drive, Redwood Shores, CA Presentations: The evolution of Java persistence, Doug Clarke, EclipseLink Project Lead, Oracle Integrating BIRT into Applications, Ashwini Verma, Actuate Corporation Developing Rich ADF Applications with Java EE, Greg Stachnick, Oracle Leveraging OSGi In The Enterprise, Kamal Muralidharan, Lead Engineer, eBay NVIDIA® NsightTM Eclipse Edition, Goodwin (Tech lead - Visual tools), Eugene Ostroukhov (Senior engineer – Visual tools) BI Architecture Master Class for Partners - Oracle Architecture Unplugged When:June 21, 2012 Where: City Office, London, UK This workshop will be highly interactive and is aimed at Oracle OPN member partners who are IT Architects and BI+W specialists. This will be a highly interactive session and does not involve slide presentations or product feature details, it addresses IT-Architectural issues and considerations for the IT-Architect Community. Oracle Fusion Middleware Innovation Awards | Oracle Excellence Awards Share your use of Oracle Fusion Middleware solutions and how they help your organization drive business innovation. You just might win a free pass to Oracle Openworld 2012 in San Francisco. Deadline for submissions in July 17, 2012. Oracle Service Bus 11g: listing projects and services with WLST - part 1 | Michel Schildmeijer "For automating and repetitive purposes, as well for uniformity it's always good to have some scripting," says Michel Schildmeijer. Creating an Oracle Endeca Information Discovery 2.3 Application Part 3 : Creating the User Interface | Mark Rittman Oracle ACE Director Mark Rittman continues his article series. WebLogic Advisor WebCasts On-Demand A series of videos by WebLogic experts, available to those with access to support.oracle.com. Integrating OBIEE 11g into Weblogic’s SAML SSO | Andre Correa A-Team blogger Andre Correa illustrates a transient federation scenario. InfoQ: Cloud 2017: Cloud Architectures in 5 Years Andrew Phillips, Mark Holdsworth, Martijn Verburg, Patrick Debois, and Richard Davies review the evolution of cloud computing so far and look five years into the future. Thought for the Day "One cannot make an omelet without breaking eggs – but it is amazing how many eggs one can break without making a decent omelet." — Charles P. Issawi Source: softwarequotes.com

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• Ruby Script Runner for Ubuntu Gedit

  - by Ygam

  I have this Java script runner installed in my gedit external tools: #!/bin/sh cd $GEDIT_CURRENT_DOCUMENT_DIR if javac $GEDIT_CURRENT_DOCUMENT_NAME; then java ${GEDIT_CURRENT_DOCUMENT_NAME%\.java} else echo "Failed to compile" fi I tried modifying to it to something like this #!/bin/sh cd $GEDIT_CURRENT_DOCUMENT_DIR ruby ${GEDIT_CURRENT_DOCUMENT_NAME%\.rb} but it doesn't work. I may have missed something, I don't know what because I don't do bash scripting. Hehe

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• Why are we as an industry not more technically critical of our peers? [closed]

  - by Jarrod Roberson

  For example: I still see people in 2011 writing blog posts and tutorials that promote setting the Java CLASSPATH at the OS environment level. I see people writing C and C++ tutorials dated 2009 and newer and the first lines of code are void main(). These are examples, I am not looking for specific answers to the above questions, but to why the culture of accepting sub-par knowledge in the industry is so rampant. I see people posting these same type of empirically wrong suggestions as answers on www.stackoverflow.com and they get lots of up votes and practically no down votes! The ones that get lots of down votes are usually from answering a question that wasn't asked because of lack of reading for comprehension skills, and not incorrect answers per se. Is our industry that ignorant as a whole, I can understand the internet in general being lazy, apathetic and un-informed but our industry should be more on top of things like this and way more critical of people that are promoting bad habits and out-dated techniques and information. If we are really an engineering discipline, why aren't people held to a higher standard as they are in other engineering disciplines? I want to know why people accept bad advice, poor practices as the norm and are not more critical of their peers in the software industry.?

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• Sql Server Express Profiler

  - by csharp-source.net

  Sql Server Express Profiler is a profiler for MS SQL Server 2005 Express . SQL Server Express Edition Profiler provides the most of functionality standard profiler does, such as choosing events to profile, setting filters, etc. But it doesn't provide professional tools for profiling sql queries. This project is a .NET WinForms Application and in future AJAX-enabled web site which provides functionality of Microsoft SQL Profiler.

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• The Differences between MAC Address and Network Layer Address

  A Mac address is a fixed number associated with a NICs onboard memory. It is initially assigned at the factory. The MAC address is broken up into 2 parts. The first part is the Block id which is six digit sequences that is unique to each vender. The second section is the device id which is created and assigned by the manufacture. A Network layer address is different because there format based on the type of protocol and network used. Also, there unique id is based on a hierarchal addressing theme on subsets of data  and narrowing it down. Just like in an address you can narrow down your house, for example: Florida, Boca Raton, 33428, SW 53th street states that you live in Florida. You also live in the area located in Florida called Boca Raton and you are also in the area of 33428 which is located in Boca Raton. Finally you live on SW 8th street which is in the area of 33428 which is located in Boca Raton which is also located in Florida.

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• Know Your Service Request Status

  - by Get Proactive Customer Adoption Team

  Untitled Document To monitor a Service Request or not to monitor a Service Request... That should never be the question Monitoring the Service Requests you create is an essential part of the process to resolve your issue when you work with a Support Engineer. If you monitor your Service Request, you know at all times where it is in the process, or to be more specific, you know at all times what action the Support Engineer has taken on your request and what the next step is. When you think about it, it is rather simple... Oracle Support is working the issue, Oracle Development is working the issue, or you are. When you check on the status, you may find that the Support Engineer has a question for you or the engineer is waiting for more information to resolve the issue. If you monitor the Service Request, and respond quickly, the process keeps moving, and you’ll get your answer more quickly. Monitoring a Service Request is easy. All you need to do is check the status codes that the Support Engineer or the system assigns to your Service Request. These status codes are not static. You will see that during the life of your Service request, it will go through a variety of status codes. The best advice I can offer you when you monitor your Service Request is to watch the codes. If the status is not changing, or if you are not getting responses back within the agreed timeframes, you should review the action plan the Support Engineer has outlined or talk about a new action plan. Here are the most common status codes: Work in Progress indicates that your Support Engineer is researching and working the issue. Development Working means that you have a code related issue and Oracle Support has submitted a bug to Development. Please pay a particular attention to the following statuses; they indicate that the Support Engineer is waiting for a response from you: Customer Working usually means that your Support Engineer needs you to collect additional information, needs you to try something or to apply a patch, or has more questions for you. Solution Offered indicates that the Support Engineer has identified the problem and has provided you with a solution. Auto-Close or Close Initiated are statuses you don’t want to see. Monitoring your Service Request helps prevent your issues from reaching these statuses. They usually indicate that the Support Engineer did not receive the requested information or action from you. This is important. If you fail to respond, the Support Engineer will attempt to contact you three times over a two-week period. If these attempts are unsuccessful, he or she will initiate the Auto-Close process. At the end of this additional two-week period, if you have not updated the Service Request, your Service Request is considered abandoned and the Support Engineer will assign a Customer Abandoned status. A Support Engineer doesn’t like to see this status, since he or she has been working to solve your issue, but we know our customers dislike it even more, since it means their issue is not moving forward. You can avoid delays in resolving your issue by monitoring your Service Request and acting quickly when you see the status change. Respond to the request from the engineer to answer questions, collect information, or to try the offered solution. Then the Support Engineer can continue working the issue and the Service Request keeps moving forward towards resolution. Keep in mind that if you take an extended period of time to respond to a request or to provide the information requested, the Support Engineer cannot take the next step. You may inadvertently send an implicit message about the problem’s urgency that may not match the Service Request priority, and your need for an answer. Help us help you. We want to get you the answer as quickly as possible so you can stay focused on your company’s objectives. Now, back to our initial question. To monitor Service Requests or not to monitor Service Requests? I think the answer is clear: yes, monitor your Service Request to resolve the issue as quickly as possible.

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• Firefox being really sluggish on php.net website?

  - by Rory

  Is it just me, or is firefox (3.5 on Ubuntu 9.10 karmic) really sluggish when opening the PHP.net website? When I have several tabs open with just the PHP.net website, and I tab up and down (with Control-PageUp/Down), it's slow to change tab. If I do it quickly, then firefox freezes for a few seconds (I know because it goes grey, which is a compiz feature to show unresponsive windows). The CPU usage also goes up when I'm tabbing to PHP.net pages. UPDATE: This appears to happen for all PHP.net webpages. For other pages, on other sites, Firefox is fine (for me).

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• Samba Configuration with Webmin

  <b>Linux.com:</b> "The Webmin administration tool is a very powerful suite of web-based admin tools (for the Linux operating system) that have been around for some time. Webmin includes numerous modules covering nearly every aspect of Linux administration."

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