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• Canonicalization of single, small pages like reviews or product categories

  - by Valorized

  In general I pretty much like the idea of canonicalization. And in most cases, Google explains possible procedures in a clear way. For example: If I have duplicates because of parameters (eg: &sort=desc) it's clear to use the canonical for the site, provided the within the head-tag. However I'm wondering how to handle "small - no to say thin content - sites". What's my definition of a small site? An Example: On one of my main sites, we use a directory based url-structure. Let's see: example.com/ (root) example.com/category-abc/ example.com/category-abc/produkt-xy/ Moreover we provide on page, that includes all products example.com/all-categories/ (lists all products the same way as in the categories) In case of reviews, we use a similar structure: example.com/reviews/product-xy/ shows all review for one certain product example.com/reviews/product-xy/abc-your-product-is-great/ shows one certain review example.com/reviews/ shows all reviews for all products (latest first) Let's make it even more complicated: On every product site, there are the latest 2 reviews at the end of the page. So you see, a lot of potential duplicates. Q1: Should I create canonicals for a: example.com/category-abc/ to example.com/all-categories/ b: example.com/reviews/product-xy/abc-your-product-is-great/ to example.com/reviews/product-xy/ or to example.com/review/ or none of them? Q2: Can I link the collection of categories (all-categories/) and collection of all reviews (reviews/ and reviews/product-xy/) to the single category respectively to the single review. Example: example.com/reviews/ includes - let's say - 100 reviews. Can I somehow use a markup that tells search engines: "Hey, wait, you are now looking at a collection of 100 reviews - do not index this collection, you should rather prefer indexing every single review as a single page!". In HTML it might be something like that (which - of course - does not work, it's only to show you what I mean): <div class="review" rel="canonical" href="http://example.com/reviews/product-xz/abc-your-product-is-great/"> HERE GOES THE REVIEW</div> Reason: I don't think it is a great user experience if the user searches for "your product is great" and lands on example.com/reviews/ instead of example.com/reviews/product-xy/abc-your-product-is-great/. On the first site, he will have to search and might stop because of frustration. The second result, however, might lead to a conversion. The same applies for categories. If the user is searching for category-Z, he might land on the all-categories page and he has to scroll down to the (last) category, to find what he searched for (Z). So what's best practice? What should I do?

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• Five things SSIS should drop

  - by jamiet

  There’s a current SQL Server meme going round entitled Five things SQL Server should drop and, whilst no-one tagged me to write anything, I couldn’t resist doing the same for SQL Server Integration Services. So, without further ado, here are five things that I think should be dropped from SSIS.Data source connectionsSeriously, does anyone use these? I know why they’re there. Someone sat in a meeting back in the early part of the last decade and said “Ooo, Reporting Services and Analysis Services have these things called Data Sources. If we used them in Integration Services then we’d have a really cool integration story.” Errr….no.Web Service TaskDitto. If you want to do anything useful against anything but the simplest of SOAP web services steer well clear of this peculiar SSIS additionActiveX Script TaskAnother task that I suspect has never seen the light of day in a SSIS package. It was billed as a way of running upgraded DTS2000 ActiveX scripts in SSIS – sounds good except for one thing. Anytime one of those scripts would try to talk to the DTS object model (which they all do – otherwise what’s the point) then they will error out. This one has always been a real head scratcher.Slow Changing Dimension wizardI suspect I may get some push back on this one but I’m mentioning it anyway. Some people like the SCD wizard; I am not one of those people! Everything that the SCD component does can easily be reproduced using other components and from a performance point of view its much more beneficial to use those alternatives.Multifile Connection ManagerImagining buying a house that came with a set of keys that didn’t open any of the doors. Sounds ridiculous right? How about a SSIS Connection Manager that doesn’t get used by any of the tasks or components. Ah, that’ll be the Multifile Connection Manager then!Comments are of course welcome. Diatribes are assumed :)@Jamiet Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• A Bad Day at Work

  - by TehGrumpyCoder

  There's lots of ways of having a bad day at work... I suppose for many people, just being *at* work makes it a bad day, but I happen to be one of those people that found a way to do something I like for a living. I've always said "if you're not having fun, what's the point?" ... on the latest Zune podcast, they were interviewing someone from the WP7 team and he said they're mantra is "It's not done until it's fun" ... I like that too. But, even when you're doing what you like for a living, it can get tedious. There were times that I didn't look forward to going out and playing guitar on a Friday or Saturday night, and some nights I was looking at my watch just waiting for it to be over. Well, that was today... like Steve Martin in "The Jerk" ... the first hour was like a regular hour, but then the rest of the morning was like a day, and the afternoon has been like a week. I've got a list of stuff I need to get into my head, and it's tough when the highest technology you have during 9 hours of your day is .NET 2.0 and you can only run what IT installed. I get wrapped around the power take-off reading something and dearly want to write some code to try, but with the state of technology here, it's like trying to teach jazz chords to someone that showed up for their lesson with that stupid plastic guitar from Guitar Hero. I tried to watch a training video... downloaded it zipped so maybe it wouldn't be noticed like it might if I streamed it. Then nothing on this machine would play the video... dang! Well, if someone doesn't take me out on the drive tonight or back in tomorrow, maybe it'll be a better day... or maybe I'll d/l a bunch of training videos in a different format, or bring in a decent viewer, or download them to my Zune maybe... that would work. I suppose at age 61 there are worse things than feeling stifled... for instance, so far I've lived 2 years longer than my father... but at the same time, he's the one that pointed out that in my first letter home from Boot Camp "He's complaining, he's fine"... guess he had my number :) I think he'd appreciate "Teh Grumpy Coder"

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• Creative, busy Devoxx week

  - by JavaCecilia

  I got back from my first visit to the developer conference Devoxx in Antwerp. I can't describe the vibes of the conference, it was a developer amusement park, hackergartens, fact sessions, comic relief provided by Java Posse, James Bond and endless hallway discussions.All and all - I had a lot of fun, my main mission was to talk about Oracle's main focus for OpenJDK which besides development and bug fixing is making sure the infrastructure is working out for the full community. My focus was not to hang out at night club the Noxx, but that was came included in the package :)The London Java community leaders Ben Evans and Martijn Verburg are leading discussions in the community to lay out the necessary requirements for the infrastructure for build and test in the open. They called a first meeting at JavaOne gathering 25 people, including people from RedHat, IBM and Oracle. The second meeting at Devoxx included 14 participants and had representatives from Oracle and IBM. I hope we really can find a way to collaborate on this, making sure we deliver an efficient infrastructure for all engineers to contribute to OpenJDK with.My home in all of this was the BOF rooms and the sessions there meeting the JUG leaders, talking about OpenJDK infrastructure and celebrating the Duchess Duke Award together with the others. The restaurants in the area was slower than I've ever seen, so I missed out on Trisha Gee's brilliant replay of the workshop "The Problem with Women in IT - an Agile Approach" where she masterly leads the audience (a packed room, 50-50 gender distribution) to solve the problem of including more diversity in the developer community. A tough and sometimes sensitive topic where she manages to keep the discussion objective with a focus of improving the matter from a business perspective. Mattias Karlsson is organizing the Java developer conference Jfokus in Stockholm and was there talking to Andres Almires planning a Hackergarten with a possible inclusion of an OpenJDK bugathon. That would be really cool, especially as the Oracle Stockholm Java development office is just across the water from the Jfokus venue, some of the local JVM engineers will likely attend and assist, even though the bug smashing theme will likely be more starter level build warnings in Swing or langtools than fixing JVM bugs.I was really happy that I managed to catch a seat for the Java Posse live podcast "the Third Presidential Debate" a lot of nerd humor, a lot of beer, a lot of fun :) The new member Chet had a perfect dead pan delivery and now I just have to listen more to the podcasts! Can't get the most perfect joke out of my head, talking about beer "As my father always said: Better a bottle in front of me than a frontal lobotomy" - hilarious :)I attended the sessions delivered by my Stockholm office colleagues Marcus Lagergren (on dynamic languages on the jvm, JavaScript in particular) and Joel Borggrén-Franck (Annotations) and was happy to see the packed room and all the questions raised at the end.There's loads of stuff to write about the event, but just have to pace myself for now. It was a fantastic event, captain Stephan Janssen with crew should be really proud to provide this forum to the developer community!

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• Windows Azure Recipe: High Performance Computing

  - by Clint Edmonson

  One of the most attractive ways to use a cloud platform is for parallel processing. Commonly known as high-performance computing (HPC), this approach relies on executing code on many machines at the same time. On Windows Azure, this means running many role instances simultaneously, all working in parallel to solve some problem. Doing this requires some way to schedule applications, which means distributing their work across these instances. To allow this, Windows Azure provides the HPC Scheduler. This service can work with HPC applications built to use the industry-standard Message Passing Interface (MPI). Software that does finite element analysis, such as car crash simulations, is one example of this type of application, and there are many others. The HPC Scheduler can also be used with so-called embarrassingly parallel applications, such as Monte Carlo simulations. Whatever problem is addressed, the value this component provides is the same: It handles the complex problem of scheduling parallel computing work across many Windows Azure worker role instances. Drivers Elastic compute and storage resources Cost avoidance Solution Here’s a sketch of a solution using our Windows Azure HPC SDK: Ingredients Web Role – this hosts a HPC scheduler web portal to allow web based job submission and management. It also exposes an HTTP web service API to allow other tools (including Visual Studio) to post jobs as well. Worker Role – typically multiple worker roles are enlisted, including at least one head node that schedules jobs to be run among the remaining compute nodes. Database – stores state information about the job queue and resource configuration for the solution. Blobs, Tables, Queues, Caching (optional) – many parallel algorithms persist intermediate and/or permanent data as a result of their processing. These fast, highly reliable, parallelizable storage options are all available to all the jobs being processed. Training Here is a link to online Windows Azure training labs where you can learn more about the individual ingredients described above. (Note: The entire Windows Azure Training Kit can also be downloaded for offline use.) Windows Azure HPC Scheduler (3 labs)  The Windows Azure HPC Scheduler includes modules and features that enable you to launch and manage high-performance computing (HPC) applications and other parallel workloads within a Windows Azure service. The scheduler supports parallel computational tasks such as parametric sweeps, Message Passing Interface (MPI) processes, and service-oriented architecture (SOA) requests across your computing resources in Windows Azure. With the Windows Azure HPC Scheduler SDK, developers can create Windows Azure deployments that support scalable, compute-intensive, parallel applications. See my Windows Azure Resource Guide for more guidance on how to get started, including links web portals, training kits, samples, and blogs related to Windows Azure.

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• How much freedom should a programmer have in choosing a language and framework?

  - by Spencer

  I started working at a company that is primarily a C# oriented. We have a few people who like Java and JRuby, but a majority of programmers here like C#. I was hired because I have a lot of experience building web applications and because I lean towards newer technologies like JRuby on Rails or nodejs. I have recently started on a project building a web application with a focus on getting a lot of stuff done in a short amount of time. The software lead has dictated that I use mvc4 instead of rails. That might be OK, except I don't know mvc4, I don't know C# and I am the only one responsible for creating the web application server and front-end UI. Wouldn't it make sense to use a framework that I already know extremely well (Rails) instead of using mvc4? The two reasons behind the decision was that the tech lead doesn't know Jruby/rails and there would be no way to reuse the code. Counter arguments: He won't be contributing to the code and is frankly, not needed on this project. So, it doesn't really matter if he knows JRuby/rails or not. We actually can reuse the code since we have a lot of java apps that JRuby can pull code from and vice-versa. In fact, he has dedicated some resources to convert a Java library to C#, instead of just running the Java library on the JRuby on Rails app. All because he doesn't like Java or JRuby I have built many web applications, but using something unfamiliar is causing some spin-up and I am unable to build an awesome application in as short of a time that I'm used to. This would be fine, learning new technologies is important in this field. The problem is, for this project, we need to get a lot done in a short period of time. At what point should a developer be allowed to choose his tools? Is this dependent on the company? Does my company suck or is this considered normal? Do greener pastures exist? Am I looking at this the wrong way? Bonus: Should I just keep my head down and move along at a snails pace, or defy orders and go with what I know in order to make this project more successful? Edit: I had actually created a fully function rails application (on my own time) and showed it to the team and it did not seem to matter. I am currently porting it to mvc4 (slowly).

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• Repository and Ticket management in a Windows Environment

  - by saifkhan

  I’ve been using AxoSoft’s bug tracking application for a while, although and excellent piece of software I had some issues with it ·         It was SLOOOW (both desktop and web). I don’t care what Axosoft says, I tired multiple servers etc. I’ve been long enough in this field to tell you when something is not right with an app. ·         The cost! It’s not feasible for a small team.   I must say though, that they have some nice features which are not commonly found on other bug tracking software. I wouldn’t go on to list any here. I would prefer you download and try their app and see for yourself. In my quest to find a replacement, I tried a few. The successor had to satisfy the following ·         A 99.99% Windows Environment. ·         Bug Tracking. ·         Ticket Management (power users and project managers can open tickets on projects). ·         Repository (I decided to merge bug tracking and repository to get my team to be more productive). ·         Unlimited users. ·         Cost. Being the head of IT security for the firm I work for, making the decision to move data offsite was a hard decision to make, but turned out to be one I am not regretting so far. My choice was down to Altassian JIRA and codebaseHQ. I ended up going with the latter… (I still love the greenhopper from Altassian…its freaking cool!) CodebaseHQ is nice and simple and has all the features I needed. I’ve been using them for a few months now and very happy. Their pricing…well, see for yourself. I was also able to get our SVN data… (Yes, SVN! I don’t go near the Visual Sourcesafe thing…it’s not that safe (pardon the pun). I am hearing some nice things about TFS 2010) over to codebaseHQ. We use VisualSVN to access repositories. …so if you are a Windows developer (or team) codebaseHQ is worth checking out!

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• More Quick Interview Tips

  - by Ajarn Mark Caldwell

  In the last couple of years I have conducted a lot of interviews for application and database developers for my company, and I can tell you that the little things can mean a lot.  Here are a few quick tips to help you make a good first impression. A year ago I gave you my #1 interview tip: Do some basic research!  And a year later, I am still stunned by how few technical people do the most basic of research.  I can only guess that it is because it is so engrained in our psyche that technical competence is everything (see How to Manage Technical Employees for more on this idea) that we forget or ignore the importance of soft skills and the art of the interview.  Or maybe it is because we have heard the stories of the uber-geek who has zero personal skills but still makes a fortune working for Microsoft.  Well, here’s another quick tip:  You’re probably not as good as he is; and a large number of companies actually run small to medium sized teams and can’t really afford to have the social outcast in the group.  In a small team, everyone has to get along well, and that’s an important part of what I’m evaluating during the interview process. My #2 tip is to act alive!  I typically conduct screening interviews by phone before I bring someone in for an in-person.  I don’t care how laid-back you are or if you have a “quiet personality”, when we are talking, ACT like you are happy I called and you are interested in getting the job.  If you sound like you are bored-to-death and that you would be perfectly happy to never work again, I am perfectly happy to help you attain that goal, and I’ll move on to the next candidate. And closely related to #2, perhaps we’ll call it #2.1 is this tip:  When I call you on the phone for the interview, don’t answer your phone by just saying, “Hello”.  You know that the odds are about 999-to-1 that it is me calling for the interview because we have specifically arranged this time slot for the call.  And you can see on the caller ID that it is not one of your buddies calling, so identify yourself.  Don’t make me question whether I dialed the right number.  Answer your phone with a, “Hello, this is ___<your full name preferred, but at least your first name>___.”.  And when I say, “Hi, <your name>, this is Mark from <my company>” it would be really nice to hear you say, “Hi, Mark, I have been expecting your call.”  This sets the perfect tone for our conversation.  I know I have the right person; you are professional enough and interested enough in the job or contract to remember your appointments; and now we can move on to a little intro segment and get on with the reason for our call. As crazy as it sounds, I’ve actually had phone interviews that went like this: <Ring…> You:  “Hello?” Me:  “Hi, this is Mark from _______” You:  “Yeah?” Me:  “Is this <your name>?” You:  “Yeah.” Me:  “I had this time in my calendar for us to talk…were you expecting my call?” You:  “Oh, yeah, sure…” I used to be nice and would try to go ahead with the interview even after this bad start, thinking I was giving the candidate the benefit of the doubt…a second chance…but more often than not it was a struggle and 10 minutes into what was supposed to be a 45-minute call, I’m looking for a way to hang up without being rude myself.  It never worked out.  I never brought that person in for an in-person interview, much less offered them the job or contract.  Who knows, maybe they were some sort of wunderkind that we missed out on.  What I know is that they would never fit in with the rest of the team, and around here that is absolutely critical. So, in conclusion… Act alive!  Identify yourself!  And do at least the very basic of research.

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• Oracle at ASMC PDI 2012

  - by jeffrey.waterman

  Recently, I had the pleasure of representing Oracle at the American Society of Military Comptrollers National Professional Development Institute (PDI).  The PDI is the premier training event for resource managers in the Department of Defense and US Coast Guard.  Each year they assemble top presenters and key note speakers to convey their experiences and share the upcoming goals and vision for the Defense Department's financial and resource management community.  This year, the common themes were centered around 'auditability' and 'efficiency'.   What is auditability?  There were many definitions/themes tossed around, but to summarize my notes, it boiled down to:- the proper tracking of funds- audit readiness- proper controls- proper documentation There were sessions regarding entire programs focused on the need for auditability.  For example, FIAR: Financial Improvement and Audit Readiness (http://comptroller.defense.gov/fiar/index.html)   The FIAR stresses the "...improve(ment of) the Department's financial processes, controls and information." The entire conference, one set of solutions kept popping into my head around, "how can Oracle's solutions assist the Department of Defense", or any other Federal Agency, improve their financial processes and controls?   One answer came to mind:  Oracle Governance, Risk, and Compliance Management. Commonly referred to as "GRC". Let me summarize the main components around Oracle's GRC solution: GRC Manager: This solution is the central repository for documenting business processes, policies, and established controls.  All identified risks and issues are documented within the repository as well as action plans necessary for mitigation. GRC Controls:  This solution consists of a set of tools which are embedded with your ERP (financial, human resource, supply chain, etc.) applications to detect, prevent, and/or enforce the policies and procedures established by your Agency.  Components of the solution include:- Application Access Control Governor: a robust tool for managing application roles and responsibilities; simplify segregation of duty maintenance- Configuration Controls Governor: complete audit trail for changes made to configurations- Transactions Control Governor: track violations of internal controls; alert management to suspicious activities; be warned when high dollar transactions are occurring on an irregular basis; - Preventative Controls Governor: prevent sensitive information from being viewed by unauthorized parties; enforce field, block, and form change control If you are in the financial or resource management community and are concerned about auditability within your organization I suggest you follow up this post by reading about Oracle's GRC solutions.  www.oracle.com/grc Please feel free to follow up with thought and questions in the comments section below.  Also, if you have a topic you would like addressed in this blog, just drop me a note at [email protected]  or leave the suggestion in the comment section as well. Thank you for reading.

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• Arcball 3D camera - how to convert from camera to object coordinates

  - by user38873

  I have checked multiple threads before posting, but i havent been able to figure this one out. Ok so i have been following this tutorial, but im not using glm, ive been implementing everything up until now, like lookat etc. http://en.wikibooks.org/wiki/OpenGL_Programming/Modern_OpenGL_Tutorial_Arcball So i can rotate with the click and drag of the mouse, but when i rotate 90º degrees around Y and then move the mouse upwards or donwwards, it rotates on the wrong axis, this problem is demonstrated on this part of the tutorial An extra trick is converting the rotation axis from camera coordinates to object coordinates. It's useful when the camera and object are placed differently. For instace, if you rotate the object by 90° on the Y axis ("turn its head" to the right), then perform a vertical move with your mouse, you make a rotation on the camera X axis, but it should become a rotation on the Z axis (plane barrel roll) for the object. By converting the axis in object coordinates, the rotation will respect that the user work in camera coordinates (WYSIWYG). To transform from camera to object coordinates, we take the inverse of the MV matrix (from the MVP matrix triplet). What i have to do acording to the tutorial is convert my axis_in_camera_coordinates to object coordinates, and the rotation is done well, but im confused on what matrix i use to do just that. The tutorial talks about converting the axis from camera to object coordinates by using the inverse of the MV. Then it shows these 3 lines of code witch i havent been able to understand. glm::mat3 camera2object = glm::inverse(glm::mat3(transforms[MODE_CAMERA]) * glm::mat3(mesh.object2world)); glm::vec3 axis_in_object_coord = camera2object * axis_in_camera_coord; So what do i aply to my calculated axis?, the inverse of what, i supose the inverse of the model view? So my question is how do you transform camera axis to object axis. Do i apply the inverse of the lookat matrix? My code: if (cur_mx != last_mx || cur_my != last_my) { va = get_arcball_vector(last_mx, last_my); vb = get_arcball_vector( cur_mx, cur_my); angle = acos(min(1.0f, dotProduct(va, vb)))*20; axis_in_camera_coord = crossProduct(va, vb); axis.x = axis_in_camera_coord[0]; axis.y = axis_in_camera_coord[1]; axis.z = axis_in_camera_coord[2]; axis.w = 1.0f; last_mx = cur_mx; last_my = cur_my; } Quaternion q = qFromAngleAxis(angle, axis); Matrix m; qGLMatrix(q,m); vi = mMultiply(m, vi); up = mMultiply(m, up); ViewMatrix = ogLookAt(vi.x, vi.y, vi.z,0,0,0,up.x,up.y,up.z);

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• How do I turn on wireless adapter on HP Envy dv6 7200 under Ubuntu (any version)?

  - by Dave B.

  I have a new HP Envy dv6 7200 with dual boot Windows 8 / Ubuntu 12.04. In windows, the F12 key in Windows activates the "airplane mode" switch which enables/disables both on-board (mini PCIe) and USB wireless adapters. In Ubuntu, however, the wireless adapter is turned off by default and cannot be turned back on via the F12 key (or any other combination of F12 and Ctrl, Fn, Shift, etc.). Let me explain the "fixes" I've seen in various forums and explain what did or did not happen. These are listed in no particular order. (Spoiler alert: wireless is still broke). Solution 1? Use HP's "Wireless Assistant" utility to permanently activate the wireless card in Windows, then boot into Ubuntu to happily find it working. Unfortunately, this utility works in Windows 7 but not Windows 8. On the other hand, hardware drivers from HP are only available for Windows 8 for this model. Catch 22 (I could not find a comparable utility for Windows 8). Solution 2? Use a USB wireless adapter to sidestep the on-board device. I purchased such a device from thinkpenguin.com to be sure that it would be Linux-friendly. However, the wireless switch enables / disables all wireless devices including USB. So, there's my $50 donation to the nice folks at thinkpenguin.com, but still no solution. Solution 3? Following the Think Penguin folk's suggestion, modify the mini PCI express adapter following instructions here: http://www.notebookforums.com/t/225429/broken-wireless-hardware-switch-fix Tempting, but I then violate the terms of my warranty mere days after opening the box. This might be a good solution for an older machine that you want to get your geek on with, but not for a new box. Solution 4? rfkill unblock all No effect whatsoever. ubuntu@ubuntu-hp-evny:~$ rfkill unblock all ubuntu@ubuntu-hp-evny:~$ rfkill list all 0: hp-wifi: Wireless LAN Soft blocked: no Hard blocked: yes Solution 5? Re-install drivers. Done and done. Ubuntu recognizes the device - perhaps even without re-installing the drivers? - but cannot turn it on. How do I know this? In the Network Manager drop-down menu, the wireless option is blacked out and a message reads something like: "wireless network is disabled by a hardware switch". Solution 6? Identify a physical switch on the laptop and flip it. There is no such switch on this machine. In fact, walking through Best Buy yesterday, I checked and not a single new laptop PC had a physical switch on it. All of the wireless switches are either the F2 or F12 key ... I wonder if askubuntu will not be plagued by this exact issue in the near future? Additional info - lspci ubuntu@ubuntu-hp-evny:~$ lspci 00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Ivy Bridge PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.2 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 3 (rev c4) 00:1c.3 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 4 (rev c4) 00:1c.5 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 6 (rev c4) 00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation Device 0de9 (rev a1) 08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5229 (rev 01) 0a:00.0 Network controller: Ralink corp. Device 539b 0b:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07) Any suggestions would be much appreciated!

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• How do you exclude yourself from Google Analytics on your website using cookies?

  - by Cold Hawaiian

  I'm trying to set up an exclusion filter with a browser cookie, so that my own visits to my don't show up in my Google Analytics. I tried 3 different methods and none of them have worked so far. I would like help understanding what I am doing wrong and how I can fix this. Method 1 First, I tried following Google's instructions, http://www.google.com/support/analytics/bin/answer.py?hl=en&answer=55481, for excluding traffic by Cookie Content: Create a new page on your domain, containing the following code: <body onLoad="javascript:pageTracker._setVar('test_value');"> Method 2 Next, when that didn't work, I googled around and found this Google thread, http://www.google.com/support/forum/p/Google%20Analytics/thread?tid=4741f1499823fcd5&hl=en, where the most popular answer says to use a slightly different code: SHS Analytics wrote: <body onLoad="javascript:_gaq.push(['_setVar','test_value']);"> Thank you! This has now set a __utmv cookie containing "test_value", whereas the original: pageTracker._setVar('test_value') (which Google is still recommending) did not manage to do that for me (in Mac Safari 5 and Firefox 3.6.8). So I tried this code, but it didn't work for me. Method 3 Finally, I searched StackOverflow and came across this thread, http://stackoverflow.com/questions/3495270/exclude-my-traffic-from-google-analytics-using-cookie-with-subdomain, which suggests that the following code might work: <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setVar', 'exclude_me']); _gaq.push(['_setAccount', 'UA-xxxxxxxx-x']); _gaq.push(['_trackPageview']); // etc... </script> This script appeared in the head element in the example, instead of in the onload event of the body like in the previous 2 examples. So I tried this too, but still had no luck with trying to exclude myself from Google Analytics. Re-iterate question So, I tried all 3 methods above with no success. Am I doing something wrong? How can I exclude myself from my Google Analytics using an exclusion cookie for my browser? Update I've been testing this for several days now, and I've confirmed that the 2nd method of excluding yourself from tracking does indeed work. The problem was that the filter settings weren't properly applied to my profile, which has been corrected. See the accepted answer below.

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• Reflections from the Young Prisms

  - by Oracle OpenWorld Blog Team

   By Karen Shamban The Young Prisms began their musical journey in San Francisco, and it's here they return to bring their unique sound to the Oracle OpenWorld Music Festival.  We asked them to tell us their thoughts on music, performing, and what they like in an audience.  Here's what they had to say: Q. What do you like best about performing in front of a live audience?A. There are a lot of things to love about playing in front of people. The best part is definitely the nights when the energy the audience brings shows through. Although it always differs from city to city and person to person, when you play to a full house and people are really getting into it, it's like no other feeling.Q. How do you use technology in creating and delivering your music?A. Well, we actually use a lot more electronic components than people realize. Pretty much every string instrument played either live or on recording has been filtered through numerous electronic effects. Matt uses somewhere around 12 or 14 every time we play live. Giovanni has six. Most of our writing and demoing is done with drum sequencers and samplers too, so it's safe to say we use technology to our advantage in the writing process. Live is a bit different, since we keep it to the basics with guitars and acoustic drums. We also tend to use projections when we play live, so technology helps us do that fairly easily as well.Q. Do you prefer smaller, intimate venues or larger, louder ones?  Why?A. Couldn’t say we have a real preference in venue size. I mean, its always great to get to play through a massive killer sound system, but small venues when packed full are equally as special if not more so, because of the intimacy of it. Some of my favorite shows I've seen as an audience member/ fan have been at the smaller venues in San Francisco.Q. What about your fans surprises you?A. Sometimes the older guys are a surprise. We've played shows where there are more older guys in their 40s and 50s, who come and stare and take notes at our effects pedals. Then there are kids our age or in their 20s. Sometimes it's surprising to think that the older guys relate to what we're doing more than our peers and friends in our age group.Q. What about your live act surprises your fans?A. I think people are often surprised by how shy we can be. It feels like people expect us to be really rowdy and throw things and make really loud noises and get really aggressive on stage because some of the sounds we use can have an abrasive element to them. People expect Matt to have some kind of Kurt Cobain attitude, which he doesn’t at all. So it seems it surprises people to see musicians playing loud and noisy songs in their early and mid 20s being fairly tame and calm on stage.Q. There are going to be a lot of technical people (you could call them geeks) in the Oracle crowd -- what are they going to love about your performance?A. Hopefully most of them are pedal nerds like we are and like the previously mentioned “older dude crowd.” Besides that I hope they’d be into the projections and group of songs we're going to play for them.Q. What's new and different in the music you're making today, versus a year or two ago?A. I'd say there is more focus on the songwriting now and less of the noise today than last year. I think it's pretty evident on the new record compared to the last two. On the first two records we made as YP, we had another guitar player and songwriter who no longer plays with us. So the process in which we develop songs is different as well.Q. Have you been on tour recently? If so, what do you like about touring, and what do you dislike?A. Touring is amazing. Some people might tell you different if they've been doing it for what they'd call too long, but for us it's really a great chance to play for people who care about the music we're making and also to see and explore the world. Getting to visit so many different cities and explore so many different cultures is amazing. Of course we love getting into cultural foods too. Stefanie is a fashion geek so getting to go to New York as often as we do as well as getting to play in London and Paris is always especially fun for her.Q. Ever think about playing another kind of music? If so, what, and why?A. Never really thought about wanting to do anything drastically different. I think the style of music we play has a lot to do with the stuff we have been listening to both growing up and now. It wasn’t really a conscious decision to make sure it was a certain sound, so I'm not sure we've ever thought about doing a way different genre or whatever like electronic music or country. Although there have been times we've had conversations where we discuss possibly doing quiet sets or using the string synth sounds.Q. What are the top three things people should know about your music?A1. We like noise.A2. We use ambience and atmosphere as much as as we can.A3. Yes, the vocals are supposed to be mixed in with the guitars. Get more info: Oracle OpenWorld Music Festival Young Prisms

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• How do I configure sound with PulseAudio and Multiseat?

  - by Anthony

  In the spirit of full disclosure, i just posted this question to the ubuntu forums, but i figure more heads working on it couldn't hurt. I have a multi-seat setup working quite well. Hot plugging input devices works as expected and such. The only issue I am still not able to resolve is getting the audio for each seat. Here is a summary of my attempts at getting audio to work: Make ~/.pulse/default.pa dynamically configured based on which $DISPLAY the user logs in at. See this pastebin for the details. Load pulseaudio as a system-wide instance. Couldn't get this to work. None of the audio hardware was accessible to the users. Use udev rules to mark seats in ConsoleKit. Following udev guidelines found here: http://www.freedesktop.org/wiki/Software/systemd/multiseat I didn't think this would work, although it was "guaranteed" to work by someone in irc.freenode #pulseaudio None of those attempts yielded success, which is why I now turn to the community for help. It is quite possible that the suggested methods work and I just messed some aspect of it up, idk. This is the last piece of the puzzle which is needed before I can go and update the MultiseatX page to include instructions for Ubuntu 12.04. My understandings on the situation: Access to pulseaudio is restricted to the active session as marked by ConsoleKit (something about an ACL). CK can only mark one session as active at a time. This simple little fact of life leads me to believe that the solution should involve pulseaudio being run as a system-wide instance. Each user should connect to the pulse server and be limited to a subset of all the hardware. Maybe each user connects to the pulse server via localhost, idk. I do know that regardless of my attempts and their failed results, I was always able to use sudo aplay -D plughw:0,0 /usr/share/sounds/alsa/Front_Center.wav to play something to any of the hardware. I'm grasping at straws and am now down to the last few hairs i can pull out of my head. Please, help me figure this out so we can share the wealth. Any additional information needed will be provided at your request.

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• Microsoft Virtual Academy

  Carpe Diem It's been since a while that I could write an article for this blog but alas, I was (and still am) very busy with customer's work. Which is actually good. So, what is this article going to tell you? Well, in general, just what I already tweeted, that life is constant process of learning - especially as software craftsman. Due to an upcoming new customer project in ASP.NET I had to seize the opportunity to get my head deeper into latest available technologies, like Windows Azure and SQL Azure. I know... cloud computing and so on is not a recent development and already available since quite a while but I never any means to get myself into this since roughly two weeks ago. Microsoft Virtual Academy I can't remember exactly what guided me towards the Microsoft Virtual Academy (MVA), oh wait... Yes, it was a posting on Facebook from an old CLIP community friend. He posted a shortened URL with #MVA tag that caught my attention. Thanks for that Thomas Kuberek. After the usual sign in or registration via Live ID I was a little bit surprised that Mauritius is not an available country option... Quick mail exchange with the MVA Decan, and yeah, apologies for the missing entry. So, currently I'm learning about Microsoft products and services, and collecting points under "Not Listed Country" until Mauritius is going to be added. Hopefully soon, as MVA honors your effort with different knowledge ranks that are compared to other students with public profiles. I think it's a nice move to add some game and competition factor into the learning game. The tracks and their different modules are mainly references to publicly available material online, namely on either MSDN, TechNet, Channel9, or other Microsoft based sites. The course material therefore also varies in different media and formats, ranging from simple online articles over downloadable documents (.docx or .pdf) to Silverlight / Windows Media streams with download options. Self-assessment and students ranking Each module in a track can be finished by taking part in a self-assessment. Up to now, the assessment I did (and passed) were limited to 10 minutes available time, and consisted of six to seven questions on the module training material. Nothing too serious but it gives you a glimpse idea how Microsoft certification exams are structured. Conclusion Nothing really new but nicely gathered, assembled and presented to the MVA students. At the moment, I wouldn't dare to compare the richness and quality of those courses with professional training offers, like Pluralsight .NET Training, LearnDevNow, VTC, etc. at all, but I think that MVA has potential. Give it a try, and let me know about your opinions.

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• Library to fake intermittent failures according to tester-defined policy?

  - by crosstalk

  I'm looking for a library that I can use to help mock a program component that works only intermittently - usually, it works fine, but sometimes it fails. For example, suppose I need to read data from a file, and my program has to avoid crashing or hanging when a read fails due to a disk head crash. I'd like to model that by having a mock data reader function that returns mock data 90% of the time, but hangs or returns garbage otherwise. Or, if I'm stress-testing my full program, I could turn on debugging code in my real data reader module to make it return real data 90% of the time and hang otherwise. Now, obviously, in this particular example I could just code up my mock manually to test against a random() routine. However, I was looking for a system that allows implementing any failure policy I want, including: Fail randomly 10% of the time Succeed 10 times, fail 4 times, repeat Fail semi-randomly, such that one failure tends to be followed by a burst of more failures Any policy the tester wants to define Furthermore, I'd like to be able to change the failure policy at runtime, using either code internal to the program under test, or external knobs or switches (though the latter can be implemented with the former). In pig-Java, I'd envision a FailureFaker interface like so: interface FailureFaker { /** Return true if and only if the mocked operation succeeded. Implementors should override this method with versions consistent with their failure policy. */ public boolean attempt(); } And each failure policy would be a class implementing FailureFaker; for example there would be a PatternFailureFaker that would succeed N times, then fail M times, then repeat, and a AlwaysFailFailureFaker that I'd use temporarily when I need to simulate, say, someone removing the external hard drive my data was on. The policy could then be used (and changed) in my mock object code like so: class MyMockComponent { FailureFaker faker; public void doSomething() { if (faker.attempt()) { // ... } else { throw new RuntimeException(); } } void setFailurePolicy (FailureFaker policy) { this.faker = policy; } } Now, this seems like something that would be part of a mocking library, so I wouldn't be surprised if it's been done before. (In fact, I got the idea from Steve Maguire's Writing Solid Code, where he discusses this exact idea on pages 228-231, saying that such facilities were common in Microsoft code of that early-90's era.) However, I'm only familiar with EasyMock and jMockit for Java, and neither AFAIK have this function, or something similar with different syntax. Hence, the question: Do such libraries as I've described above exist? If they do, where have you found them useful? If you haven't found them useful, why not?

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• Quicktips 1: Windows 7 Libraries; New website

  - by Michael B. McLaughlin

  I’m working on several large posts right now. So in the interim, I’ve decided to do shorter posts that contain something I find very helpful. This is the first. I’ve been using Windows 7 since April 2010. It’s the first OS I’ve ever worked with that I actually enjoy. I’ve used many over the years (KERNAL; PC DOS; MS-DOS 3.x+; Windows 3.0, 3.11, 95, 98, 98 SE, Me, NT 3.51, NT 4, 2000, XP, Vista, 7; various GNU/Linux distros starting with Debian 1.2 – most recently Ubuntu 10.04; ProDOS, Mac OS 9.X, Mac OS X (through 10.4); SunOS, Solaris; AIX, z/OS; OpenVMS). Some were frustrating. Some tolerable. Some were “nice except for…”. OS X actually started out as seemingly “nice” until every single release contained a breaking change to some major API and they then decided to flip-off everyone who had bought a Mac as little as two years earlier with the release of Snow Leopard without PPC support. Windows 7 is the first one that’s just “nice” without any qualifiers. There are so many little features that add up to make it nice. Today’s Quicktip is one of them. Quicktip 1: Create a Library for your Code One thing I particularly like about Windows 7 is the Libraries feature in Explorer. Specifically the fact that you can create custom ones. I used to spend a lot of time opening new Explorer windows and navigating my various Visual Studio projects folders. Custom libraries allowed me to simplify that whole process. I now simply go to my “Code” library and there it all is. Adding a new library is easy. Open an Explorer window. If you aren’t in your Libraries when it opens, navigate to Libraries. Click the “New library” button. Give it a name. Then right click on the new library you created and go to “Properties”. Click the “Include a folder…” button. Choose the folder you want and press “Include folder”. Voilà! If you wish to add more, simply click “Include a folder…” again and repeat. It’s true that this is just a small time saver. But it’s one of those things that just adds a really nice touch. ------------------------ In a separate note, just before Christmas I finally finished and published my new website: http://www.bobtacoindustries.com/ . I waited to post here about it until I found time to incorporate a few things I hadn’t had the time to do when I pushed it out for its “soft open”. Most of them are now done and so my site is now formally open. I have no plans or intentions of moving my blog ( http://blog.bobtacoindustries.com/ points here). I quite like it here, both in terms of the interface and also in terms of the concept (and realization thereof) of pooling geek bloggers to create a pool of knowledge and helpful tips, tricks, techniques, and advice. I created it simply because I felt that it was time to have a website as I venture further into my return to the land of software development. The “For Devs” section should hopefully be useful to developers, particularly the links section. It’s my curated list of sites that I regularly visit to solve problems, to help answer questions on Twitter and the AppHub forums, and to learn new things. I’ll be adding links to it periodically and will be including topic areas as I become acquainted with them enough to form a proper list. WPF will likely be the first topic area added. If there are any links you think I should add to the existing topics, let me know! I warn in advance that I’m less inclined to add blogs; there are simply too many good blogs and I do not want to have hundreds per topic area. So blogs are limited primarily, though not exclusively, to acknowledged experts in the subject area who generally blog regularly about it and who usually are part of the team that develops the product or technology in question. I’m much more amenable to including individual blogs posts in the techniques subcategory in the appropriate topic area. Ultimately, it’s a collection of things I find interesting and helpful. So please no hard feelings if I don’t add a link you think is awesome. I may well think it’s awesome too, but conclude that it doesn’t fit with my goals for the dev links area.

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• How to build a 4x game?

  - by Marco

  I'm trying to study how succefully implement a 4x game. Area of interest: 1) map data: how to store stellars systems (graphs?), how to generate them and so on.. 2) multiplayer: how to organize code in a non graphical server and a client to display it 3) command system: what are patters to catch user and ai decisions and handle them, adding at first "explore" and "colonize" then "combat", "research", "spy" and so on (commands can affect ships, planets, research, etc..) 4) ai system: ai can use commands to expand, upgrade planets and ship I know is a big questions, so help is appreciated :D 1) Map data Best choice is have a graph to model a galaxy. A node is a stellar system and every system have a list of planets. Ship cannot travel outside of predefined paths, like in Ascendancy: http://www.abandonia.com/files/games/221/Ascendancy_2.png Every connection between two stellar systems have a cost, in turns. Generate a galaxy is only a matter of: - dimension: number of stellar systems, - variety: randomize number of planets and types (desertic, earth, etc..), - positions of each stellar system on game space - connections: assure that exist a path between every node, so graph is "connected" (not sure if this a matematically correct term) 2) Multiplayer Game is organized in turns: player 1, player 2, ai1, ai2. Server take care of all data and clients just diplay it and collect data change. Because is a turn game, latency is not a problem :D 3) Command system I would like to design a hierarchy of commands to take care of this aspect: abstract Genericcommand (target) ExploreCommand (Ship) extends genericcommand colonizeCommand (Ship) buildcommand(planet, object) and so on. In my head all this commands are stored in a queue for every planets, ships or reasearch center or spy, and each turn a command is sent to a server to apply command and change data state 4) ai system I don't have any idea about this. Is a big topic and what I want is a simple ai. Something like "expand and fight against everyone". I think about a behaviour tree to control ai moves, so I can develop an ai that try to build ships to expand and then colonize planets, upgrade them throught science and combat enemies. Could be done with a finite state machine too ? any ideas, resources, article are welcome!

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• Exadata at Oracle Openworld - A guide to sessions

  - by Javier Puerta

  A large number of sessions focusing on Exadata will be taking place during the week of Oracle Openworld in San Francisco. To help you organize your schedule I am including below a list of sessions and events around Exadata that you will find of interest. PARTNER SPECIFIC SESSIONS Date/Time/Location  Session Sunday, Sep 30, 3:30 PM - 4:30 PM - Moscone South - 301 Building a Winning Services Practice with Oracle’s Engineered Systems.- This session kicks off a week-long session on Oracle’s engineered systems, from Oracle Database Appliance to Oracle Exadata, Oracle Exalogic, Oracle Exalytics, Oracle Big Data Appliance, and Oracle SPARC SuperCluster. Hear about what is to come in the week ahead in terms of engineered systems. As an ideal consolidation platform for database workloads, Oracle Exadata generates significant services opportunities. This session reviews the range of partner-led services that support Oracle Exadata deployments.   Monday, October 1st, 2011 at 15:30 - 18:00 PST Grand Hyatt San Francisco 345 Stockton Street, San Francisco (Conference Theater) (It is a 15 minute walk from OOW Moscone Center. See directions here) Exadata & Manageability EMEA Partner Community Forum.- Listen to other partners share their experiences in selling and implementing Exadata and Manageability projects, and have a direct dialogue with some of the Oracle executives that are driving the strategy of the company in these areas. Agenda Welcome - Hans-Peter Kipfer, VP, Engineered Systems Oracle EMEA Next challenges in building and managing clouds - Javier Cabrerizo, VP, Business Development for Exadata, Oracle Corp. Partner Experiences: IT modernization, simplification and cost reduction: The case of a customer in Transportation & Logistics with custom applications and SAP. - Francisco Bermudez, Country Leader Infrastructure Services, Capgemini, Spain Nvision cloud project - Dmitry Krasilov, Head of Oracle Competence Center, Nvision Group, Russia From Exadata Ready to Exadata Optimized: An ISV Experience - Miguel Alves, Product Business Solutions Manager, WeDo Technologies, Portugal To confirm your participation send an email to [email protected]  Wednesday, Oct 3, 11:45 AM - 12:45 PM - Marriott Marquis - Golden Gate B  Building a Practice with Exadata Database Machine.- As an ideal consolidation platform for database workloads, Oracle’s Exadata Database Machine generates significant services opportunities. In this session, learn about the range of partner-led services that support Exadata Database Machine deployments.  Other Engineered Systems sessions for Partners at the Oracle PartnerNetwork Exchange  Click here.-   OOW CUSTOMER SESSIONS   Download the Focus On Exadata guide for a full list of Exadata OOW sessions.  

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• Is Infiniband going to get squeezed by iWARP and external QPI?

  - by andy.grover

  The Inquirer certainly thinks so.However, I'm not so sure it makes sense to compare Infiniband to an as-yet-unannounced optical external QPI. QPI is currently a processor interconnect. CPUs, RAM, and devices connected by it are conceptually part of the same machine -- they run a single OS, for example. They are both "networks" or "fabrics" but they have very different design trade-offs.Another widely-used bus in the system is closer to Infiniband than QPI -- PCI Express. Isn't it more likely that PCIe could take on IB? There are companies already who have solutions that use external PCI Express for cluster interconnect, but these have not gained significant market share. Why would QPI, a technology whose sweet spot is even further from Infiniband's than PCIe, be able to challenge Infiniband? It's hard to speculate without much information, but right now it doesn't seem likely to me.The other prediction made in the article is that Intel's 10GbE iWARP card could squeeze IB on the low end, due to its greater compatibility and lower cost.It's definitely never a good idea to bet against Ethernet when it comes to mass-market, commodity networking. Ethernet will win. 10GbE will win. But, there are now two competing ways to implement the low-latency RDMA Verbs interface on top of Ethernet. iWARP is essentially RDMA over TCP/IP over Ethernet. The new alternative is IBoE (Infiniband over Ethernet, aka RoCEE, aka "Rocky"). This encapsulates the IB packet protocol directly in the Ethernet frame. It loses the layer 3 routability of iWARP, but better maintains software compatibility with existing apps that use IB, and is simpler to implement in both software and hardware. iWARP has a substantial head start, but I believe that IBoE silicon will eventually be cheaper, and more likely to be implemented in commodity Ethernet hardware.I think IBoE is going to take low-end market share from traditional IB, but I think this is a situation IB hardware vendors have no problem accepting. Commoditized IBoE NICs invite greater use of RDMA features, and when higher performance is needed, customers can upgrade to "real" IB, maintaining IB's justification for higher prices. (IB max interconnect speeds have historically been 2-4x higher than Ethernet, and I don't see that changing.)(ObDisclosure: My current employer now sells IB hardware. I previously also worked at Intel. My opinions are my own, duh.)

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• Music Notation Editor - Refactoring view creation logic elseware

  - by Cyril Silverman

  Let me preface by saying that knowing some elementary music theory and music notation may be helpful in grasping the problem at hand. I'm currently building a Music Notation and Tablature Editor (in Javascript). But I've come to a point where the core parts of the program are more or less there. All functionality I plan to add at this point will really build off the foundation that I've created. As a result, I want to refactor to really solidify my code. I'm using an API called VexFlow to render notation. Basically I pass the parts of the editor's state to VexFlow to build the graphical representation of the score. Here is a rough and stripped down UML diagram showing you the outline of my program: In essence, a Part has many Measures which has many Notes which has many NoteItems (yes, this is semantically weird, as a chord is represented as a Note with multiple NoteItems, individual pitches or fret positions). All of the relationships are bi-directional. There are a few problems with my design because my Measure class contains the majority of the entire application view logic. The class holds the data about all VexFlow objects (the graphical representation of the score). It contains the graphical Staff object and the graphical notes. (Shouldn't these be placed somewhere else in the program?) While VexFlowFactory deals with actual creation (and some processing) of most of the VexFlow objects, Measure still "directs" the creation of all the objects and what order they are supposed to be created in for both the VexFlowStaff and VexFlowNotes. I'm not looking for a specific answer as you'd need a much deeper understanding of my code. Just a general direction to go in. Here's a thought I had, create an MeasureView/NoteView/PartView classes that contains the basic VexFlow objects for each class in addition to any extraneous logic for it's creation? but where would these views be contained? Do I create a ScoreView that is a parallel graphical representation of everything? So that ScoreView.render() would cascade down PartView and call render for each PartView and casade down into each MeasureView, etc. Again, I just have no idea what direction to go in. The more I think about it, the more ways to go seem to pop into my head. I tried to be as concise and simplistic as possible while still getting my problem across. Please feel free to ask me any questions if anything is unclear. It's quite a struggle trying to dumb down a complicated problem to its core parts.

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• [ADF tip #1] Working around some clientListener limitation

  - by julien.schneider(at)oracle.com

  As i occasionally work on Oracle ADF, i've decided to write tips on this Framework. Previous version of adf (10g) had a <afh:body> component to represent the body of your page which allowed to specify javascript events like onload or onunload. In ADF RC, the body (as well as html and head) is geneated by a single <af:document>. To implement the onXXXXX events you embed an <af:clientListener> within this <af:document> and specify property type="load" with the method to trigger.   Problem is that onunload property is not supported by th af:clientListener. So how do i do ? Well, a solution is to add this event during page load.   First step : Embed in your <af:document> the following : <af:clientListener type="load" method="addOnUnload()"/>   Second step : Add your unload event using this kind of script : <af:document>     <f:facet name="metaContainer">     <f:verbatim>     <script type="text/javascript">                 function addOnUnload(evt) {                       window.onunload=function()                               {                                   alert('Goodbye Word');                              }                    }     </script>     </f:verbatim>   When closing browser your event will be triggered as expected.    

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• Coordinate based travel through multi-line path over elapsed time

  - by Chris

  I have implemented A* Path finding to decide the course of a sprite through multiple waypoints. I have done this for point A to point B locations but am having trouble with multiple waypoints, because on slower devices when the FPS slows and the sprite travels PAST a waypoint I am lost as to the math to switch directions at the proper place. EDIT: To clarify my path finding code is separate in a game thread, this onUpdate method lives in a sprite like class which happens in the UI thread for sprite updating. To be even more clear the path is only updated when objects block the map, at any given point the current path could change but that should not affect the design of the algorithm if I am not mistaken. I do believe all components involved are well designed and accurate, aside from this piece :- ) Here is the scenario: public void onUpdate(float pSecondsElapsed) { // this could be 4x speed, so on slow devices the travel moved between // frames could be very large. What happens with my original algorithm // is it will start actually doing circles around the next waypoint.. pSecondsElapsed *= SomeSpeedModificationValue; final int spriteCurrentX = this.getX(); final int spriteCurrentY = this.getY(); // getCoords contains a large array of the coordinates to each waypoint. // A waypoint is a destination on the map, defined by tile column/row. The // path finder converts these waypoints to X,Y coords. // // I.E: // Given a set of waypoints of 0,0 to 12,23 to 23, 0 on a 23x23 tile map, each tile // being 32x32 pixels. This would translate in the path finder to this: // -> 0,0 to 12,23 // Coord : x=16 y=16 // Coord : x=16 y=48 // Coord : x=16 y=80 // ... // Coord : x=336 y=688 // Coord : x=336 y=720 // Coord : x=368 y=720 // // -> 12,23 to 23,0 -NOTE This direction change gives me trouble specifically // Coord : x=400 y=752 // Coord : x=400 y=720 // Coord : x=400 y=688 // ... // Coord : x=688 y=16 // Coord : x=688 y=0 // Coord : x=720 y=0 // // The current update index, the index specifies the coordinate that you see above // I.E. final int[] coords = getCoords( 2 ); -> x=16 y=80 final int[] coords = getCoords( ... ); // now I have the coords, how do I detect where to set the position? The tricky part // for me is when a direction changes, how do I calculate based on the elapsed time // how far to go up the new direction... I just can't wrap my head around this. this.setPosition(newX, newY); }

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• Developer – Cross-Platform: Fact or Fiction?

  - by Pinal Dave

  This is a guest blog post by Jeff McVeigh. Jeff McVeigh is the general manager of Performance Client and Visual Computing within Intel’s Developer Products Division. His team is responsible for the development and delivery of leading software products for performance-centric application developers spanning Android*, Windows*, and OS* X operating systems. During his 17-year career at Intel, Jeff has held various technical and management positions in the fields of media, graphics, and validation. He also served as the technical assistant to Intel’s CTO. He holds 20 patents and a Ph.D. in electrical and computer engineering from Carnegie Mellon University. It’s not a homogenous world. We all know it. I have a Windows* desktop, a MacBook Air*, an Android phone, and my kids are 100% Apple. We used to have 2.5 kids, now we have 2.5 devices. And we all agree that diversity is great, unless you’re a developer trying to prioritize the limited hours in the day. Then it’s a series of trade-offs. Do we become brand loyalists for Google or Apple or Microsoft? Do we specialize on phones and tablets or still consider the 300M+ PC shipments a year when we make our decisions on where to spend our time and resources? We weigh the platform options, monetization opportunities, APIs, and distribution models. Too often, I see developers choose one platform, or write to the lowest common denominator, which limits their reach and market success. But who wants to be ?me too”? Cross-platform coding is possible in some environments, for some applications, for some level of innovation—but it’s not all-inclusive, yet. There are some tricks of the trade to develop cross-platform, including using languages and environments that ?run everywhere.” HTML5 is today’s answer for web-enabled platforms. However, it’s not a panacea, especially if your app requires the ultimate performance or native UI look and feel. There are other cross-platform frameworks that address the presentation layer of your application. But for those apps that have a preponderance of native code (e.g., highly-tuned C/C++ loops), there aren’t tons of solutions today to help with code reuse across these platforms using consistent tools and libraries. As we move forward with interim solutions, they’ll improve and become more robust, based, in no small part, on our input. What’s your answer to the cross-platform challenge? Are you fully invested in HTML5 now? What are your barriers? What’s your vision to navigate the cross-platform landscape?  Here is the link where you can head next and learn more about how to answer the questions I have asked: https://software.intel.com/en-us Republished with permission from here. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL Tagged: Intel

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• F# Objects &ndash; Integrating with the other .Net Languages &ndash; Part 1

  - by MarkPearl

  In the next few blog posts I am going to explore objects in F#. Up to now, my dabbling in F# has really been a few liners and while I haven’t reached the point where F# is my language of preference – I am already seeing the benefits of the language when solving certain types of programming problems. For me I believe that the F# language will be used in a silo like architecture and that the real benefit of having F# under your belt is so that you can solve problems that F# lends itself towards and then interact with other .Net languages in doing the rest. When I was still very new to the F# language I did the following post covering how to get F# & C# to talk to each other. Today I am going to use a similar approach to demonstrate the structure of F# objects when inter-operating with other languages. Lets start with an empty F# class … type Person() = class end   Very simple, and all we really have done is declared an object that has nothing in it. We could if we wanted to make an object that takes a constructor with parameters… the code for this would look something like this… type Person =     {         Firstname : string         Lastname : string     }   What’s interesting about this syntax is when you try and interop with this object from another .Net language like C# - you would see the following…   Not only has a constructor been created that accepts two parameters, but Firstname and Lastname are also exposed on the object. Now it’s important to keep in mind that value holders in F# are immutable by default, so you would not be able to change the value of Firstname after the construction of the object – in C# terms it has been set to readonly. One could however explicitly state that the value holders were mutable, which would then allow you to change the values after the actual creation of the object. type Person = { mutable Firstname : string mutable Lastname : string }   Something that bugged me for a while was what if I wanted to have an F# object that requires values in its constructor, but does not expose them as part of the object. After bashing my head for a few moments I came up with the following syntax – which achieves this result. type Person(Firstname : string, Lastname : string) = member v.Fullname = Firstname + " " + Lastname What I haven’t figured out yet is what is the difference between the () & {} brackets when declaring an object.

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