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• Favorite Visual Studio 2010 Extensions

  - by Scott Dorman

  Now that Visual Studio 2010 has been released, there are a lot of extensions being written. In fact, as of today (May 1, 2010 at 15:40 UTC) there are 809 results for Visual Studio 2010 in the Visual Studio Gallery. If you filter this list to show just the free items, there are still 251 extensions available. Given that number (and it is currently increasing weekly) it can be difficult to find extensions that are useful. Here is the list of extensions that I currently have installed and find useful: Word Wrap with Auto-Indent Indentation Matcher Extension Structure Adornment This also installs the following extensions: BlockTagger BlockTaggerImpl SettingsStore SettingsStoreImpl Source Outliner Triple Click ItalicComments Go To Definition Spell Checker Remove and Sort Using Format Document Open Folder in Windows Explorer Find Results Highlighter Regular Expressions Margin Indention Matcher Extension Word Wrap with Auto-Indent VSCommands HelpViewerKeywordIndex StyleCop Visual Studio Color Theme Editor PowerCommands for Visual Studio 2010 Extension Analyzer CodeCompare Team Founder Server Power Tools VS10x Selection Popup Color Picker Completion Numbered Bookmarks   Technorati Tags: Visual Studio,Extensions

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• In Search of Automatic ORM with REST interface

  - by Dan Ray

  I have this wish that so far Google hasn't been able to fulfill. I want to find a package (ideally in PHP, because I know PHP, but I guess that's not a hard requirement) that you point at a database, it builds an ORM based on what it finds there, and exposes a REST interface over the web. Everything I've found in my searches requires a bunch of code--like, it wants you to build the classes for it, but it'll handle the REST request routing. Or it does database and relational stuff just fine, but you have to build your own methods for all the CRUD actions. That's dumb. REST is well defined. If I wanted to re-invent the wheel, I totally could, but I don't want to. Isn't there somebody who's built a one-shot super-simple auto-RESTing web service package?

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• Should my dropdown of recently used items show items I no longer have access to

  - by Dan Hibbert

  We are implementing a client for our document management system. Part of this is the checkin screen where one of the fields a user chooses is the folder where the document should be checked into. In our original system, this was represented with a combobox where a user could hand type a folder path or select a path from a list of 5 folders they'd recently used for checking. It is possible that between the time they used the folder and the time they are doing the new checkin the user will no longer have access to the folder. At present, we still show the folder as an option and then, if the user chooses that folder, display an error message when the user submits the check in. We are thinking of removing these recently used folders the user doesn't have access to (we'll make a check when the form is instantiated) because why show an option if we know it will cause a failure (and another dialog message the user has to OK). However, an opposite opinion is that if we remove those folders, the users will think the system has "forgotten" their recent choices and will lose trust in what they are using. I'd like to get some opinions on the better user experience for this problem.

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• Is it better to have AWS EC2 and RDS is the same Availability Zone?

  - by Dan

  I run a web app in an AWS EC2 instance and the database for the app in an RDS instance both in Amazon Web Services Region East-1. However, one of them is in Availability Zone 1a and the other is in 1d. Am I getting all the speed benefits of having both instances in the same "data center" (East-1) even if they are in different Availability Zones, or can I optimize by moving them to the same Availability Zone?

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• On-Demand Webcast: Managing Oracle Exadata with Oracle Enterprise Manager 11g

  - by Scott McNeil

  Watch this on-demand webcast and discover how Oracle Enterprise Manager 11g's unique management capabilities allow you to efficiently manage all stages of Oracle Exadata's lifecycle, from testing applications on Exadata to deployment. You'll learn how to: Maximize and predict database performance Drive down IT operational costs through automation Ensure service quality with proactive management Register today and unlock the potential of Oracle Exadata for your enterprise. Register Now!

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• Which version of Java should I use for learning?

  - by Dan

  I am a QA engineer interested in mobile development and automation.I have basic programming experience (intermediate level Python, C++ programmer) and as most companies choose Java for writing frameworks I need to pickup Java. I use Ubutnu 12.04 LTS and I will be using Head First Java as learning material. When I searched for JDK options I found Oracle Java 6 and 7 and Open JDK. I read somewhere in Ubuntu forums that Java 6 is not recommended on Ubuntu systems and I am a little bit confused about which version should I use, that would be compatible with the book and the OS.

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• Is there a SUPPORTED way to run .NET 4.0 applications natively on a Mac?

  - by Dan

  What, if any, are the Microsoft supported options for running C#/.NET 4.0 code natively on the Mac? Yes, I know about Mono, but among other things, it lags Microsoft. And Silverlight only works in a web browser. A VMWare-type solution won't cut it either. Here's the subjective part (and might get this closed): is there any semi-authoritative answer to why Microsoft just doesn't support .NET on the Mac itself? It would seem like they could Silverlight and/or buy Mono and quickly be there. No need for native Visual Studio; cross-compiling and remote debugging is fine. The reason is that where I work there is a growing amount of Uncertainty about the future which is causing a lot more development to be done in C++ instead of C#; brand new projects are chosing to use C++. Nobody wants to tell management 18–24 months from now "sorry" should the Mac (or iPad) become a requirement. C++ is seen as the safer option, even if it (arguably) means a loss in productivity today.

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• Is there a SUPPORTED way to run .NET 4.0 applications natively on a Mac?

  - by Dan

  What, if any, are the (Microsoft) supported options for running C#/.NET 4.0 code natively on the Mac? Yes, I know about Mono, but among other things, it lags Microsoft. And Silverlight only works in a web browser. A VMWare-type solution won't cut it either. Here's the subjective part (and might get this closed): is there any semi-authoritative answer to why Microsoft just doesn't support .NET on the Mac itself? It would seem like they could Silverlight and/or buy Mono and quickly be there. No need for native Visual Studio; cross-compiling and remote debugging is fine. The reason is that where I work there is a growing amount of Uncertainty about the future which is causing a lot more development to be done in C++ instead of C#; brand new projects are chosing to use C++. Nobody wants to tell management 18–24 months from now "sorry" should the Mac (or iPad) become a requirement. C++ is seen as the safer option, even if it (arguably) means a loss in productivity today.

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• Rotate around the centre of the screen

  - by Dan Scott

  I want my camera to rotate around the centre of screen and I'm not sure how to achieve that. I have a rotation in the camera but I'm not sure what its rotating around. (I think it might be rotating around the position.X of camera, not sure) If you look at these two images: http://imgur.com/E9qoAM7,5qzyhGD#0 http://imgur.com/E9qoAM7,5qzyhGD#1 The first one shows how the camera is normally, and the second shows how I want the level to look when I would rotate the camera 90 degrees left or right. My camera: public class Camera { private Matrix transform; public Matrix Transform { get { return transform; } } private Vector2 position; public Vector2 Position { get { return position; } set { position = value; } } private float rotation; public float Rotation { get { return rotation; } set { rotation = value; } } private Viewport viewPort; public Camera(Viewport newView) { viewPort = newView; } public void Update(Player player) { position.X = player.PlayerPos.X + (player.PlayerRect.Width / 2) - viewPort.Width / 4; if (position.X < 0) position.X = 0; transform = Matrix.CreateTranslation(new Vector3(-position, 0)) * Matrix.CreateRotationZ(Rotation); if (Keyboard.GetState().IsKeyDown(Keys.D)) { rotation += 0.01f; } if (Keyboard.GetState().IsKeyDown(Keys.A)) { rotation -= 0.01f; } } } (I'm assuming you would need to rotate around the centre of the screen to achieve this)

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• Using an Apt Repository for Paid Software Updates

  - by Scott Warren

  I'm trying to determine a way to distribute software updates for a hosted/on-site web application that may have weekly and/or monthly updates. I don't want the customers who use the on-site product to have to worry about updating it manually I just want it to download and install automatically ala Google Chrome. I'm planning on providing an OVF file with Ubuntu and the software installed and configured. My first thought on how to distributed software is to create six Apt repositories/channels (not sure which would be better at this point) that will be accessed through SSH using keys so if a customer doesn't renew their subscription we can disable their account: Beta - Used internally on test data to check the package for major defects. Internal - Used internally on live data to check the package for defects (dog fooding stage). External 1 - Deployed to 1% of our user base (randomly selected) to check for defects. External 9 - Deployed to 9% of our user base (randomly selected) to check for defects. External 90 - Deployed to the remaining 90% of users. Hosted - Deployed to the hosted environment. It will take a sign off at each stage to move into the next repository in case problems are reported. My questions to the community are: Has anyone tried something like this before? Can anyone see a downside to this type of a procedure? Is there a better way?

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• What would be the level of effort required to implement a screencapture command on a PS3 game?

  - by Sean Scott

  Looking to see what the level of effort is for implementing a screen capture command into PS3 game by a mid-level PS3 game developer. Bonus for a description of what is involved in the process... EDIT Not sure how to get back my question since it was the first but let me clarify some things. @Nate Bross, nope I am not the actor although i've fielded calls for him on occasion @coderanger my intent was to try and speak to other PS3 developers, however coming from a web development no one in my social circle close or extended develops on the PS3. Additionally i'm interested in hearing the effort required in terms of hours so that this information can be passed on to a client. A client who has a game on the PS3 using the unreal engine. Convo with devs sometimes go something like "can you implement feature a" which gets a response "this will take us 8 weeks and an army". Trying to be educated before the ask. I hope that helps If anyone here is a PS3 game dev and would like to respond off site so as not to break NDA that would be awesome. @Roger it would be from within the game, something that users can use. Something akin to the iphone screencap utility. No need to get fancier than that.

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• Email links open in a new window [closed]

  - by Dan

  I'm asking this as an opinion question. How does everyone treat email links opening in a new window if their default email client is web based? This way? <a href="mailto:[email protected]">email me</a>. It will open fine for app based email clients but open in the same window for web based clients. This way? <a href="mailto:[email protected]" target="_blank">email me</a>. It will open in a new tab for web based email clients but open a blank tab. I cant really seem to find the best of both worlds. What does everyone else do?

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• A Cautionary Tale About Multi-Source JNDI Configuration

  - by scott.s.nelson(at)oracle.com

  Here's a bit of fun with WebLogic JDBC configurations.  I ran into this issue after reading that p13nDataSource and cgDataSource-NonXA should not be configured as multi-source. There were some issues changing them to use the basic JDBC connection string and when rolling back to the bad configuration the server went "Boom".  Since one purpose behind this blog is to share lessons learned, I just had to post this. If you write your descriptors manually (as opposed to generating them using the WLS console) and put a comma-separated list of JNDI addresses like this: <jdbc-data-source-params> <jndi-name>weblogic.jdbc.jts.commercePool,contentDataSource, contentVersioningDataSource,portalFrameworkPool</jndi-name> <algorithm-type>Load-Balancing</algorithm-type> <data-source-list>portalDataSource-rac0,portalDataSource-rac1</data-source-list> <failover-request-if-busy>false</failover-request-if-busy> </jdbc-data-source-params> so long as the first address resolves, it will still work. Sort of.  If you call this connection to do an update, only one node of the RAC instance is updated. Other wonderful side-effects include the server refusing to start sometimes. The proper way to list the JNDI sources is one per node, like this: <jdbc-data-source-params> <jndi-name>weblogic.jdbc.jts.commercePool</jndi-name> <jndi-name>contentDataSource</jndi-name> <jndi-name>contentVersioningDataSource</jndi-name> <jndi-name>portalFrameworkPool</jndi-name> <algorithm-type>Load-Balancing</algorithm-type> <data-source-list>portalDataSource-rac0, portalDataSource-rac1, portalDataSource-rac2 </data-source-list> <failover-request-if-busy>false</failover-request-if-busy> </jdbc-data-source-params>(Props to Sandeep Seshan for locating the root cause)

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• My computer stops seeing the other computers on my network

  - by dan

  I'm running Ubuntu 11.04. Sometimes my computer stops seeing the names of the other computers on my network. So I can no longer log into another computer by typing the hosting name e.g. ssh [email protected] I can still log in using the local network IP address. How can I get the first way to work again without rebooting? I know this problem is local to the computer. The other computers on my network can still see one another. But they can no longer see the computer I'm working on, not even by local ip address.

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• Resources for up-to-date Delphi programming

  - by Dan Kelly

  I'm a developer in a small department and have been using Delphi for the last 10 years. Whilst I've tried to keep up-to-date with movements there are a lot of changes that have occurred between Delphi 7 and (current for us) 2010. Stack Exchange and here have been great for answering the "how do you" questions, but what I'd like is a resource that shows great examples of larger scale programming. For example is there anywhere that hosts examples of well written, multi form applications? Something that can be looked at as a whole to illustrate why things should be done a certain way?

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• Unity not running on startup

  - by Dan

  OK, so Firefox was running extremely slow, I ran it in safe mode and still slow, so I rebooted and when she came back on, I wasn't at the regular Unity login, it was like a classic Windows login (where I had to enter my username and password manually, not a list of users). I logged in and only my desktop was visible (with icons and my wallpaper). Nothing else. I was able to open a terminal with Ctrl+ Alt+T and typed... sudo unity ...which got it up (albeit with the default icons on the launcher ex. I had unlocked Libre Office and it was back). In "Startup Applications..." there was absolutely nothing at all... This happens every time I reboot. Thunderbird de-synced from my Gmail but Pidgin is still connected. When I do Ctrl+Alt+L it locks the screen as normal, but I have no option to switch user. I have the only account on this computer but I cannot access the main login screen to get to my Guest account. I'm not very Ubuntu-savy, but it's pretty clear that I'm starting in some sort of safemode. I am on a fresh install of Ubuntu 12.04.1 LTS (just installed it last night).

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• I have permanent connections to Canonical servers, what are they for and how can I turn them off?

  - by Dan Dman

  After the recent upgrade to 12, I notice permanent connections to canonical servers. Running netstat -tp gives: Foreign Address State PID/Program name mulberry.canonical:http CLOSE_WAIT 6537/ubuntu-geoip-p alkes.canonical.co:http CLOSE_WAIT 6667/python alkes.canonical.co:http CLOSE_WAIT 6667/python Why are there permanent connections and how could I stop this behavior? And if this is intentional, who is responsible? I would like to understand why this was done because to me it seems like a bad idea.

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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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• The Oldest Big Data Problem: Parsing Human Language

  - by dan.mcclary

  There's a new whitepaper up on Oracle Technology Network which details the use of Digital Reasoning Systems' Synthesys software on Oracle Big Data Appliance.  Digital Reasoning's approach is inherently "big data friendly," as it leverages multiple components of the Hadoop ecosystem.  Moreover, the paper addresses the oldest big data problem of them all: extracting knowledge from human text.   You can find the paper here.   From the Executive Summary: There is a wealth of information to be extracted from natural language, but that extraction is challenging. The volume of human language we generate constitutes a natural Big Data problem, while its complexity and nuance requires a particular expertise to model and mine. In this paper we illustrate the impressive combination of Oracle Big Data Appliance and Digital Reasoning Synthesys software. The combination of Synthesys and Big Data Appliance makes it possible to analyze tens of millions of documents in a matter of hours. Moreover, this powerful combination achieves four times greater throughput than conducting the equivalent analysis on a much larger cloud-deployed Hadoop cluster.

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• 3d vertex translated onto 2d viewport

  - by Dan Leidal

  I have a spherical world defined by simple trigonometric functions to create triangles that are relatively similar in size and shape throughout. What I want to be able to do is use mouse input to target a range of vertices in the area around the mouse click in order to manipulate these vertices in real time. I read a post on this forum regarding translating 3d world coordinates into the 2d viewport.. it recommended that you should multiply the world vector coordinates by the viewport and then the projection, but they didn't include any code examples, and suffice to say i couldn't get any good results. Further information.. I am using a lookat method for the viewport. Does this cause a problem, and if so is there a solution? If this isn't the problem, does anyone have a simple code example illustrating translating one vertex in a 3d world into a 2d viewspace? I am using XNA.

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• Conditions for a traditional friends system vs. open following system

  - by Dan

  I'm just curious for everyone who is developing social sites out there. When you build a method for connecting users, do you prefer to use a following-style system (follow me, you can see all of my information and I can just choose to follow you back), or instead do you choose to have a friends-style system (I have to allow you see all of my information on your homepage, even if it is open to the public, vise versa). Why and under what circumstances do you use each? How do you manage privacy between your users? Have you use another way to connect your users? Examples of what methods you've choose and how you manage the user's privacy (private by default vs open to the web) are awesome; it could show correlation and provides an actual look.

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• Watch the Live Broadcast of the Silverlight 4 Launch Event

   Want to be at DevConnections for the Silverlight 4 Launch but can;t make it? No worries, you can watch as Scott Guthrie launches Silverlight 4. Following the keynote you can watch Scott in special one hour edition of "Ask the Gu" along with other Silverlight folk like me to answer your questions on Channel 9 Live. To watch the keynotes and Channel 9 Live coverage head to http://live.ch9.ms on April 12th and 13th. Silverlight required, of course :)  To be a part of the conversation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Rhythmbox won't import or play flac files

  - by Dan Drake

  I have a new installation of 12.04 and I just copied over all my music to the ~/Music folder. Rhythmbox found all the mp3 and ogg files, but it refuses to import flac files. They simply do not appear in my music library. If I start Rhythmbox on the command line and try to import a folder that contains flac files, absolutely nothing happens. Nothing is imported; no error messages. I have all the dependencies for Rhythmbox installed, along with all the suggested and recommended packages. I can play a flac file with gst-launch-0.10 and gst-typefind-0.10 correctly identifies flac files as audo/x-flac. Why does Rhythmbox refuse to see flac files? What can I do to find out what is happening?

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• St. Louis IT Community Holiday Party

  - by Scott Spradlin

  The St. Louis .NET User Group is hosting a holiday party this year for the very first time in our 10 year history. The event will be held at the Bottleneck Blues Bar at the Ameristar Casino in St. Charles. It will be an open house style event meaning you can drop by any time from 6:00pm to 9:00pm and enjoy the Unhandled Exceptions...the band that played at the St. Louis Day of .NET 2011. $5.00 at the door gets you in and goes to support a local charity The Backstoppers. If you cannot come, you can make a donation online. Details at our group web site HTTP://www.stlnet.org

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• Blueprints for Oracle NoSQL Database

  - by dan.mcclary

  I think that some of the most interesting analytic problems are graph problems.  I'm always interested in new ways to store and access graphs.  As such, I really like the work being done by Tinkerpop to create Open Source Software to make property graphs more accessible over a wide variety of datastores.  Since key-value stores like Oracle NoSQL Database are well-suited to storing property graphs, I decided to extend the Blueprints API to work with it.  Below I'll discuss some of the implementation details, but you can check out the finished product here: http://github.com/dwmclary/blueprints-oracle-nosqldb.  What's in a Property Graph?  In the most general sense, a graph is just a collection of vertices and edges.  Vertices and edges can have properties: weights, names, or any number of other traits.  In an undirected graph, edges connect vertices without direction.  A directed graph specifies that all edges have a head and a tail --- a direction.  A multi-graph allows multiple edges to connect two vertices.  A "property graph" encompasses all of these traits. Key-Value Stores for Property Graphs Key-Value stores like Oracle NoSQL Database tend to be ideal for implementing property graphs.  First, if any vertex or edge can have any number of traits, we can treat it as a hash map.  For example: Vertex["name"] = "Mary" Vertex["age"] = 28 Vertex["ID"] = 12345  and so on.  This is a natural key-value relationship: the key "name" maps to the value "Mary."  Moreover if we maintain two hash maps, one for vertex objects and one for edge objects, we've essentially captured the graph.  As such, any scalable key-value store is fertile ground for planting graphs. Oracle NoSQL Database as a Scalable Graph Database While Oracle NoSQL Database offers useful features like tunable consistency, what lends it to storing property graphs is the storage guarantees around its key structure.  Keys in Oracle NoSQL Database are divided into two parts: a major key and a minor key.  The storage guarantee is simple.  Major keys will be distributed across storage nodes, which could encompass a large number of servers.  However, all minor keys which are children of a given major key are guaranteed to be stored on the same storage node.  For example, the vertices: /Personnel/Vertex/1  and /Personnel/Vertex/2 May be stored on different servers, but /Personnel/Vertex/1-/name and  /Personnel/Vertex/1-/age will always be on the same server.  This means that we can structure our graph database such that retrieving all the properties for a vertex or edge requires I/O from only a single storage node.  Moreover, Oracle NoSQL Database provides a storeIterator which allows us to store a huge number of vertices and edges in a scalable fashion.  By storing the vertices and edges as major keys, we guarantee that they are distributed evenly across all storage nodes.  At the same time we can use a partial major key to iterate over all the vertices or edges (e.g. we search over /Personnel/Vertex to iterate over all vertices). Fork It! The Blueprints API and Oracle NoSQL Database present a great way to get started using a scalable key-value database to store and access graph data.  However, a graph store isn't useful without a good graph to work on.  I encourage you to fork or pull the repository, store some data, and try using Gremlin or any other language to explore.

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