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• Software solution from the 2000's, should I attempt to patch or remake the whole thing?

  - by ShadowScripter

  I was sent out to discuss a system that a certain company is currently using and what should be done with it. The company manufactures various carton displays. This system was developed to keep track of clients, orders and prices. Lots have happened since the system was created and the system is now, as the manager described it, "locked up" and "problematic", which I translate as "not dynamic" and "unstable". Some info about the system It was developed around the year 2000 Fairly small system, 2-5 users, 6 forms, ~8 tables with average quantities of data Built on early Visual Basic, forms created with the drag and drop design. Interface is basically just a window with a menu and some forms Uses MSSQL database (SQL2005 server) to store data and ODBC driver to query, data was migrated from excel before this system, and before excel it was handled, calculated and written by hand and paper Users work in Microsoft XP environment (and up) Their main problem is that they can't adjust and calculate prices, can't add new carton types etc, correctly anymore because they can't (or rather, they don't know how to) touch the data on the server. I suggested 3 possible solutions Attempt to patch the current system Create a fresh new interface (preferably similar environment, VB.net or VB based) Bring it back to an Excel solution, considering it is such a small system There might be more options, but these are the ones I could think of. My questions are What should I recommend and why? What is or could be the pros and cons of these alternatives? Are there other (possibly better) alternatives?

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• Template syntax for users - is there a right way to do it?

  - by RickM

  Ok, I'm in the middle of building a saas system, and as part of that, the hosted clients need to be able to edit certain layout templates, baqsically just html, css and javascript files. I'm obviously going to be wanting to use a template syntax here as it would be dumb to let people execute PHP code, so in this instance template syntax does need to be used. I know that in the grand scale of things, this is a very minor thing, but what template syntax do you use, and why? Is there one that's considered better than others? I've seen all sorts being used with no real consistency, for example: Smarty Style: {$someVar} {foreach from="foo" item="bar"} {$bar.food} {/foreach} ASP Style: {% someVar %} {% foreach foo as bar %} {% bar.food %} {% endforeach %} HTML Style: <someVar> <foreach from="foo" item="bar"> <bar:food> </foreach> PyroCMS/FuelPHP "LEX" Style: {{ someVar }} {{ foreach from="foo" item="bar" }} {{ bar:food }} {{ endforeach }} Obviously these arent 100% accurate (for example, LEX is used alongside PHP for loops), and are only to give you an example of what I mean. What, in your opinion would be the best one (if any) to go with. I ask this bearing in mind that people using this are likely to be novice users. I did look around at a bunch of hosted CMS and E-Commerce systems as these seem to make use of user-editable templates, and most seem to be using some form of their own syntax. I should note that whatever style I end up going with, it will be with a custom template handler due to the complexity of the system and how template files are stored. Plus I'd not want to touch the likes of Smarty with a barge pole!

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• Take a Tour of the Future

  - by Tom Caldecott-Oracle

  Visit Our HQ Usability Lab During Oracle OpenWorld 2014 You want to look behind the scenes at the Oracle Applications User Experience Usability Lab on the campus of our headquarters. No problem. You’re invited to join an exclusive tour. When? Thursday, October 2 or Friday, October 3. Where? Redwood Shores, Calif.  And what will you see on the tour? The future—how we test future product designs and the advanced technology we use to do that. You’ll also view early demos of upcoming enterprise software designs for tables and mobile phones.  We’ll provide round-trip transportation, with the pickup and drop-off point being the InterContinental San Francisco.  Space is limited, so reserve your spot now. Want to know more about the tour and other Oracle Applications User Experience activities at Oracle OpenWorld? Visit UsableApps. Welcome to the future.

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• How to choose between using a Domain Event, or letting the application layer orchestrate everything

  - by Mr Happy

  I'm setting my first steps into domain driven design, bought the blue book and all, and I find myself seeing three ways to implement a certain solution. For the record: I'm not using CQRS or Event Sourcing. Let's say a user request comes into the application service layer. The business logic for that request is (for whatever reason) separated into a method on an entity, and a method on a domain service. How should I go about calling those methods? The options I have gathered so far are: Let the application service call both methods Use method injection/double dispatch to inject the domain service into the entity, letting the entity do it's thing and then let it call the method of the domain service (or the other way around, letting the domain service call the method on the entity) Raise a domain event in the entity method, a handler of which calls the domain service. (The kind of domain events I'm talking about are: http://www.udidahan.com/2009/06/14/domain-events-salvation/) I think these are all viable, but I'm unable to choose between them. I've been thinking about this a long time and I've come to a point where I no longer see the semantic differences between the three. Do you know of some guidelines when to use what?

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• How to optimize a box2d simulation in action game?

  - by nathan

  I'm working on an action game and i use box2d for physics. The game use a tiled map. I have different types of body: Static ones used for tiles Dynamic ones for player and enemies Actually i tested my game with ~150 bodies and i have a 60fps constantly on my computer but not on my mobile (android). The FPS drop as the number of body increase. After having profiled the android application, i saw that the World.step took around 8ms in CPU time to execute. Here are few things to note: Not all the world is visible on screen, i use a scrolling system Enemies are constantly moving toward the player so there is alaways to force applied to their body Enemies need to collide between each others Enemies collide with tiles I also now that i can active/desactive or sleep/awake bodies. Considering the fact that only a part of the enemies are possibly displayed on screen, is there any optimizations i can do to reduce the execution time of box2d simulation? I found a guy trying an optimization based on distance of enemies from the player (link). But i seems like he just desactives far bodies (in my case, i could desactive bodies that are not visible). But my enemies need to move even when they are not visible on screen, and applying forces will not workd on inactive bodies. Should i play with sleeping bodies here? Also, enemies are composed by two fixtures and are constantly colliding with each others and with tiles but i really never need to get notified about that. Is there anything i can do to optimize this kind of scenario? Finally, am i wrong to try to run simulation at 60FPS on mobile and should i try to make it run at 30FPS?

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• What is the standard technique for shifting the frames of a sprite according to user input?

  - by virtual__

  From my own experience, I developed two techniques for changing the sprites of a character that's reacting to user input -- this in the context of a classic 2D platformer. The first one is to store all character's pixmaps in a list, putting the index of the currently used pixmap in an ordinary variable. This way, every time the player presses a key -- say the right arrow for moving the character forward -- the graphics engine sees what's the next pixmap to draw, draws it, and increments the index counter. That's a pretty common approach I believe, the problem is that in this case the animation's quality depends not only on the number of sprites available but also on how often your engine listens to user input. The second technique is to actually play an animation every key press event. For this you can use any sort of animation framework you want. It's only necessary to set the timer, the animation steps and to call the animation's play() method on your key press event handler. The problem with that approach is that is lacks responsiveness, since the character won't react to any input while the current animation is still being played. What I want to know is whether you are using one of these techniques -- or something similar -- in your games, or whether there's a standard method for animating sprites out there that's widely known by everybody but me.

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• How to read reduce/shift conflicts in LR(1) DFA?

  - by greenoldman

  I am reading an explanation (awesome "Parsing Techniques" by D.Grune and C.J.H.Jacobs; p.293 in the 2nd edition) and I moved forward from my last question: How to get lookahead symbol when constructing LR(1) NFA for parser? Now I have such "problem" (maybe not a problem, but rather need of confirmation from some more knowledgeable people). The authors present state in LR(0) which has reduce/shift conflict. Then they build DFA for LR(1) for the same grammar. And now they say it does not have a conflict (lookaheads at the end): S -> E . eof E -> E . - T eof E -> E . - T - and there is an edge from this state labeled - but no labeled eof. Authors says, that on eof there will be reduce, on - there will be shift. However eof is for shift as well (as lookahead). So my personal understanding of LR(1) DFA is this -- you can drop lookaheads for shifts, because they serve no purpose now -- shifts rely on input, not on lookaheads -- and after that, remove duplicates. S -> E . eof E -> E . - T So the lookahead for reduce serves as input really, because at this stage (all required input is read) it is really incoming symbol right now. For shifts, the input symbols are on the edges. So my question is this -- am I actually right about dropping lookaheads for shifts (after fully constructing DFA)?

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• Designing object oriented programming

  - by Pota Onasys

  Basically, I want to make api calls using an SDK I am writing. I have the following classes: Car CarData (stores input values needed to create a car like model, make, etc) Basically to create a car I do the following: [Car carWithData: cardata onSuccess: successHandler onError: errorHandler] that basically is a factory method that creates instance of Car after making an API call request and populating the new Car class with the response and passes that instance to the successHandler. So "Car" has the above static method to create that car, but also has non-static methods to edit, delete cars (which would make edit, delete API calls to the server) So when the Car create static method passes a new car to the successHandler by doing the following: successHandler([[Car alloc] initWithDictionary: dictionary) The success handler can go ahead and use that new car to do the following: [car update: cardata] [car delete] considering the new car object now has an ID for each car that it can pass to the update and delete API calls. My questions: Do I need a cardata object to store user inputs or can I store them in the car object that would also later store the response from all of the api calls? How can I improve this model? With regards to CarData, note that there might be different inputs for the different API calls. So create function might need to know model, make, etc, but find function might need to know the number of items to find, the limit, the start id, etc.

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• Wifi interface changes name seemingly at random

  - by ray_voelker

  I'm currently having some issues getting a wireless interface to work continuously under an install of Ubuntu 12.04.1 LTS. Some of the issues I'm experiencing include Connection will drop out after some time after it has initially worked. Interface will be a different name after a reboot. For example, wlan0 will become wlan4 when using the ifconfig -a command. Ubuntu will take a long time to boot, looking for network adapters. The purpose of this build is to function as a web kiosk in a library. The computer is supposed to boot up into a web browser, and allow for browsing of the catalog. For some reason this interface does not appear to be working as it should. Are there any explanations for some of these problems I'm having, and perhaps some solutions? The wireless card appears as this after doing an lspci ... Ralink corp. RT2561/RT61 802.11g PCI In the /etc/network/interfaces file I have the following configuration for the interface. auto wlan0 iface wlan0 inet dhcp wireless-essid UDwireless wireless-mode Managed Thanks in advance for help on this.

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• Customized Computer Science Degree - What other field would mesh well with computer science?

  - by sailtheworld

  So here's my situation: I have seven years of experience with web development. I can do PHP, MySQL, OOP, all of that stuff. I would like to make the argument that I have enough technical experience to go out in the real world and get a well-paying, full-time job if I were to drop out right now (I've had a number of job offers recently, and I have already gotten a lot of actual job experience), but I would like to stay in school and get a degree for a number of reasons ranging from the social aspects to the fact that I just want to have a BS in one thing or another as it seems to be important to have one for a lot of jobs, even when it doesn't have anything to do with the job. With that said, it makes little sense for me to major in Computer Science, because that would be like studying everything I already know. I don't want to major in something COMPLETELY different, because that would be contrary to my career goals. I am considering trying to find some interdisciplinary, customized degree of sorts that allows me to combine my current skills with a new education. I'm thinking maybe buisness or even psychology (interface design?). Could I get some ideas for what to major in and tips on who I might talk to? Thanks!

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• Introducing RedPatch

  - by timhill

  The Ksplice team is happy to announce the public availability of one of our git repositories, RedPatch. RedPatch contains the source for all of the changes Red Hat makes to their kernel, one commit per fix and we've published it on oss.oracle.com/git. With RedPatch, you can access the broken-out patches using git, browse them online via gitweb, and freely redistribute the source under the terms of the GPL. This is the same policy we provide for Oracle Linux and the Unbreakable Enterprise Kernel (UEK). Users can freely access the source, view the commit logs and easily identify the changes that are relevant to their environments. To understand why we've created this project we'll need a little history. In early 2011, Red Hat changed how they released their kernel source, going from a tarball that had individual patch files to shipping the kernel source as one giant tarball with a single patch for all Red Hat-introduced changes. For most people who work in the kernel this is merely an inconvenience; driver developers and other out-of-kernel module developers can see the end result to make sure their module still performs as expected. For Ksplice, we build individual updates for each change and rely on source patches that are broken-out, not a giant tarball. Otherwise, we wouldn’t be able to take the right patches to create individual updates for each fix, and to skip over the noise — like a change that speeds up bootup — which is unnecessary for an already-running system. We’ve been taking the monolithic Red Hat patch tarball and breaking it into smaller commits internally ever since they introduced this change. At Oracle, we feel everyone in the Linux community can benefit from the work we already do to get our jobs done, so now we’re sharing these broken-out patches publicly. In addition to RedPatch, the complete source code for Oracle Linux and the Oracle Unbreakable Enterprise Kernel (UEK) is available from both ULN and our public yum server, including all security errata. Check out RedPatch and subscribe to [email protected] for discussion about the project. Also, drop us a line and let us know how you're using RedPatch!

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• New functionality in TFS Build Manager &ndash; Managing Triggers and Build Resources

  - by Jakob Ehn

  Yesterday we pushed out a new release (August 2012) of the Community TFS Build Extension, including a new version of the Community TFS Build Manager (1.0.4.6) The two big new features in the Build Manager in this release are: Set Triggers It is now possible to select one or more build definitions and update the triggers for them in one simple operation: You’ll note that we have started collapsing the context menu a bit, the list of commands are getting long! When selecting the Trigger command, you’ll see a dialog where the options should be self-explanatory: The only thing missing here is the Scheduled trigger option, you’ll have to do that using Team Explorer for now.   Manage Build Resources The other feature is that it is now possible to view the build controllers and agents in your current collection and also perform some actions against them. The new functionality is available by select the Build Resources item in the drop down menu: Selecting this, you’ll see a (sort of) hierarchical view of the build controllers and their agents: In this view you can quickly see all the resources and their status. You can also view the build directory of each build agent and the tags that are associated with them. On the action menu, you can enable and disable both agents and controllers (several at a time), and you can also select to remove them. By selecting Manage, you’ll be presented with the standard Manage Controller dialog from Visual Studio where you can set the rest of the properties. Hopefully we’ll be able to implement most of the existing functionality so that we can remove that menu option Our plan is to add more functionality to this view, such as adding new agents/controllers, restarting build service hosts, maybe view diagnostic information such as disk space and error logs.   Hope you’ll find the new functionality useful. Remember to log any bugs and feature requests on the CodePlex site. Happy building!

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• Is spreading code with refactoring comments a good idea?

  - by Uooo

  I am working on a "spaghetti-code" project, and while I am fixing bugs and implementing new features, I also do some refactoring in order to make the code unit-testable. The code is often so tightly coupled or complicated that fixing a small bug would result in a lot of classes being rewritten. So I decided to draw a line somewhere in the code where I stop refactoring. To make this clear, I drop some comments in the code explaining the situation, like: class RefactoredClass { private SingletonClass xyz; // I know SingletonClass is a Singleton, so I would not need to pass it here. // However, I would like to get rid of it in the future, so it is passed as a // parameter here to make this change easier later. public RefactoredClass(SingletonClass xyz) { this.xyz = xyz; } } Or, another piece of cake: // This might be a good candidate to be refactored. The structure is like: // Version String // | // +--> ... // | // +--> ... // | // ... and so on ... // Map map = new HashMap<String, Map<String, Map<String, List<String>>>>(); Is this a good idea? What should I keep in mind when doing so?

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• File Adapter FileName Macros

  - by IntegrationOverload

  I can never find these when I need them...   Macro name Substitute value %datetime% Coordinated Universal Time (UTC) date time in the format YYYY-MM-DDThhmmss (for example, 1997-07-12T103508). %datetime_bts2000% UTC date time in the format YYYYMMDDhhmmsss, where sss means seconds and milliseconds (for example, 199707121035234 means 1997/07/12, 10:35:23 and 400 milliseconds). %datetime.tz% Local date time plus time zone from GMT in the format YYYY-MM-DDThhmmssTZD, (for example, 1997-07-12T103508+800). %DestinationParty% Name of the destination party. The value comes from the message context property BTS.DestinationParty. %DestinationPartyQualifier% Qualifier of the destination party. The value comes from the message context property BTS.DestinationPartyQualifier. %MessageID% Globally unique identifier (GUID) of the message in BizTalk Server. The value comes directly from the message context property BTS.MessageID. %SourceFileName% Name of the file from where the File adapter read the message. The file name includes the extension and excludes the file path, for example, Sample.xml. When substituting this property, the File adapter extracts the file name from the absolute file path stored in the FILE.ReceivedFileName context property. If the context property does not have a value, for example, if a message was received on an adapter other than the File adapter, the macro will not be substituted and will remain in the file name as is (for example, C:\Drop\%SourceFileName%). %SourceParty% Name of the source party from which the File adapter received the message. %SourcePartyQualifier% Qualifier of the source party from which the File adapter received the message. %time% UTC time in the format hhmmss. %time.tz% Local time plus time zone from GMT in the format hhmmssTZD (for example, 124525+530).

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• ADF Logging In Deployed Apps

  - by Duncan Mills

  Harking back to my series on using the ADF logger and the related  ADF Insider Video, I've had a couple of queries this week about using the logger from Enterprise Manager (EM). I've alluded in those previous materials to how EM can be used but it's evident that folks need a little help.  So in this article, I'll quickly look at how you can switch logging on from the EM console for an application and how you can view the output.  Before we start I'm assuming that you have EM up and running, in my case I have a small test install of Fusion Middleware Patchset 5 with an ADF application deployed to a managed server. Step 1 - Select your Application In the EM navigator select the app you're interested in: At this point you can actually bring up the context ( right mouse click) menu to jump to the logging, but let's do it another way.  Step 2 - Open the Application Deployment Menu At the top of the screen, underneath the application name, you'll find a drop down menu which will take you to the options to view log messages and configure logging, thus: Step 3 - Set your Logging Levels  Just like the log configuration within JDeveloper, we can set up transient or permanent (not recommended!) loggers here. In this case I've filtered the class list down to just oracle.demo, and set the log level to config. You can now go away and do stuff in the app to generate log entries. Step 4 - View the Output  Again from the Application Deployment menu we can jump to the log viewer screen and, as I have here, start to filter down the logging output to the stuff you're interested in.  In this case I've filtered by module name. You'll notice here that you can again look at related log messages. Importantly, you'll also see the name of the log file that holds this message, so it you'd rather analyse the log in more detail offline, through the ODL log analyser in JDeveloper, then you can see which log to download.

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• Dropping multiple objects using an array in Actionscript?

  - by Eratosthenes

  I'm trying to get these fireBalls to drop more often, I'm not sure if I'm using Math.random correctly. Also, for some reason I'm getting a null reference because I think the fireBalls array waits for one to leave the stage before dropping another one? This is the relevant code: var sun:Sun=new Sun var fireBalls:Array=new Array() var left:Boolean; function onEnterFrame(event:Event){ if (left) { sun.x = sun.x - 15; }else{ sun.x = sun.x + 15; } if (fireBalls.length>0&&fireBalls[0].y>stage.stageHeight){ // Fireballs exit stage removeChild(fireBalls[0]); fireBalls.shift(); } for (var j:int=0; j<fireBalls.length; j++){ fireBalls[j].y=fireBalls[j].y+15; if (fireBalls[j].y>stage.stageHeight-fireBall.width/2){ } } if (Math.random()<.2){ // Fireballs shooting from Sun var fireBall:FireBall=new FireBall; fireBall.x=sun.x; addChild(fireBall); fireBalls.push(fireBall); } }

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• Hitching and Slowness Due to HDD Activity on Ubuntu, But Not Windows?

  - by Espionage724

  It's been bothering me for months now, but I've noticed in Ubuntu (or any distro of Linux I've tried), any major I/O activity will cause hitching and general slowness. For example, if I try doing a file transfer from my network computer to the computer I'm using and try moving the mouse after a while, it might not respond for a second or so. Similar incidents occur in other cases too (right-clicking to get a context menu takes a few seconds, hitting the drop-down application bar takes a while, etc). My HDD isn't top-notch (a WD Blue 500GB 7200RPM drive) but I don't recall it being nearly this bad in Windows 7, 8, or 8.1. CPU activity during file transfers is relatively low (less than 10-20% on all cores of a Phenom II X4 @ 3.3Ghz). I'm using Gnome System Monitor (on Xubuntu) and can't seem to see what kind of HDD activity is occurring though. I have 8GB of RAM too, which is moderately being used (2.5GB), but shouldn't be a problem either. Any ideas what's up? I've tried kernels between 3.8 and 3.11 (i'm using saucy currently with 3.11).

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• Best approach for tracking dependent state

  - by Pace

  Let's pretend I work on a project tracking application. The application is a database backed, server hosted, web application. In this application there are Projects which have many Activities which have many Tasks. A Task has two date fields an originalDueDate and a projectedDueDate. In addition, there are dynamic fields on the Activities and the Projects which indicate whether the Activity or Project is behind schedule based on the projected due dates of the child tasks and various other variables such as remaining buffer time, etc. There are a number of things that can cause the projectedDueDate to change. For example, an employee working on the project may (via a server request) enter in a shipping delay. Alternatively, a site may (via a server request) enter in an unexpected closure. When any of these things occur I need to not only update the projectedDueDate of the Task but also trigger the corresponding Project and Activity to update as well. What is the best way to do this? I've thought of the observer pattern but I don't keep a single copy of all these objects in memory. When a request comes in, I query the Task in from the database, at that point there is no associated Activity in memory that would be a listener. I could remove the ability to query for Tasks and force the application to query first by Project, then by Activity (in context of Project), then by task (in context of Activity) adding the observer relationships at each step but I'm not sure if that is the best way. I could setup a database event listening system so when a Task modified event is dispatched I have a handler which queries for the Activity at that point. I could simply setup a two-way relationship between Task and Activity so that the Task knows about the parent Activity and when the Task updates his state the Task grabs his parent and updates state. Right now I'm stuck considering all the options and am wondering if any single approach (doesn't have to be a listed approach) is jumping out at others as the best approach.

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• Which jar has JBox2d's p5 package

  - by Brantley Blanchard

  Using eclipse, I'm trying to write a simple hello world program in processing that simply draws a rectangle on the screen then has gravity drop it as seen in this Tutorial. The problem is that when I try to import the p5 package, it's not resolving so I can't declare my Physics object. I tried two things. Download the zip, unzip it, then import the 3 jars (library, serialization, & testbed) a. import org.jbox2d.p5.*; doesn't resolve but the others do b. Physics physics; doesn't resolve Download the older standalone testbed jar then import it a. Physics physics; doesn't resolve; Here is basically where I'm starting import org.jbox2d.util.nonconvex.*; import org.jbox2d.dynamics.contacts.*; import org.jbox2d.testbed.*; import org.jbox2d.collision.*; import org.jbox2d.common.*; import org.jbox2d.dynamics.joints.*; import org.jbox2d.p5.*; import org.jbox2d.dynamics.*; import processing.core.PApplet; public class MyFirstJBox2d extends PApplet { Physics physics; public void setup() { size(640,480); frameRate(60); initScene(); } public void draw() { background(0); if (keyPressed) { //Reset everything physics.destroy(); initScene(); } } public void initScene() { physics = new Physics(this, width, height); physics.setDensity(1.0f); physics.createRect(300,200,340,300); } }

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• Actionscript - Dropping Multiple Objects Using an Array? [closed]

  - by Eratosthenes

  Possible Duplicate: Actionscript - Dropping Multiple Objects Using an Array? I'm trying to get these fireBalls to drop more often, im not sure if im using Math.random correctly also, for some reason I'm getting a null reference because I think the fireBalls array waits for one to leave the stage before dropping another one? this is the relevant code: var sun:Sun=new Sun var fireBalls:Array=new Array() var left:Boolean; function onEnterFrame(event:Event){ if (left) { sun.x = sun.x - 15; }else{ sun.x = sun.x + 15; } if (fireBalls.length>0&&fireBalls[0].y>stage.stageHeight){ // Fireballs exit stage removeChild(fireBalls[0]); fireBalls.shift(); } for (var j:int=0; j<fireBalls.length; j++){ fireBalls[j].y=fireBalls[j].y+15; if (fireBalls[j].y>stage.stageHeight-fireBall.width/2){ } } if (Math.random()<.2){ // Fireballs shooting from Sun var fireBall:FireBall=new FireBall; fireBall.x=sun.x; addChild(fireBall); fireBalls.push(fireBall); } }

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• SunSpace - a sentimental moment

  - by me

  I just came back from California where I had a little sentimental moment.With the great help from some former Sun colleagues we move the old SunSpace gear into a new data center in Santa Clara.We will re-purpose the hardware as a new development infrastructure to build integrated demos around Oracle WebCenter products, Business Applications and Social Services. now - I could not resist to restart the SunSpace applications and see if it still works. And hey - even though we had to re-IP the entire  stack (sun.com domain is gone) and with some little hacking (thanks to Apache reverse proxy) -  we got it back! Hey Max - now I just need to change your SSO hack to get login working again Hmm - I won't - but it is really nice to see it working again .. and it's time to switch it off and to work  on the next cool things .. Do you know Oracle WebCenter Sites (formely Fatwire)? Its Oracle's Web Experience Management Solution - a pretty cool technology and a very slick User Interface. I specially like the drag&drop functionality which allows non technical users to easily publish content.  Why do I mention it here ?  Because we will use the SunSpace gear to build cool  Oracle WebCenter Sites demos and proof of concepts integration  into Business Applications and Social Services  This is a sneak preview what we are working on. Stay tuned.....

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• Not able to install LTT tool in 10.04

  - by Ashoka

  I have tried the below commands to install LTT on VMware running Ubuntu 10.04, but got the following error. Please help. From link : https://launchpad.net/~lttng/+archive/ppa $ sudo apt-add-repository ppa:lttng/ppa $ sudo apt-get update $ sudo apt-get install lttng-tools lttng-modules-dkms babeltrace user@usr:~$ sudo apt-add-repository ppa:lttng/ppa Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv C541B13BD43FA44A287E4161F4A7DFFC33739778 gpg: requesting key 33739778 from hkp server keyserver.ubuntu.com gpg: unable to execute program `/usr/local/libexec/gnupg/gpgkeys_curl': No such file or directory gpg: no handler for keyserver scheme `hkp' gpg: keyserver receive failed: keyserver error user@usr:~$ user@usr:~$ sudo apt-get update ..... $ user@usr:~$ sudo apt-get install lttng-tools lttng-modules-dkms babeltrace Reading package lists... Done Building dependency tree Reading state information... Done E: Couldn't find package lttng-tools user@usr:~$ My systemm details: user@usr:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.04 DISTRIB_CODENAME=lucid DISTRIB_DESCRIPTION="Ubuntu 10.04.4 LTS" user@usr:~$ user@usr:~$ user@usr:~$ uname -a Linux usr 2.6.32-42-generic #95-Ubuntu SMP Wed Jul 25 15:57:54 UTC 2012 i686 GNU/Linux user@usr:~$ Regards, Ashoka

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• Trouble installing from disk

  - by SuperNatural

  I'm writing this in desperation, Windows is slowly killing me and i need to change my home pc os to Ubuntu 11.04 as soon as possible. I created a USB flash drive to install ubuntu, twice, and both times they failed to begin install on restart of my pc. i read on another forum that you might have to change some boot sequence in BIOS but when pressing F2 to enter it didnt work. After a lot of cursing, I made myself an UBUNTU install cd and booted. To my excitement, it now displayed... try ubuntu and install ubuntu. i clicked install ubuntu which lead me to the preparing to install ubuntu display, i checked download updates while installing and clicked forward. The very next display is ' allocate drive space ' i assume there are meant to be options of drives provided but mine is just a blank box and underneath all the options to create a new partition table, add, change, delete and revert are all greyed out. There is a drop down menu labelled 'device for boot loader installlation' but the only option is /dev/sda. when i click install, a no root file system error comes up telling me to please correct from the partitioning menu. I am extremely frustrated. please!! can anyone help me...

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• Creating a Predicate Builder extension method

  - by Rippo

  I have a Kendo UI Grid that I am currently allowing filtering on multiple columns. I am wondering if there is a an alternative approach removing the outer switch statement? Basically I want to able to create an extension method so I can filter on a IQueryable<T> and I want to drop the outer case statement so I don't have to switch column names. private static IQueryable<Contact> FilterContactList(FilterDescriptor filter, IQueryable<Contact> contactList) { switch (filter.Member) { case "Name": switch (filter.Operator) { case FilterOperator.StartsWith: contactList = contactList.Where(w => w.Firstname.StartsWith(filter.Value.ToString()) || w.Lastname.StartsWith(filter.Value.ToString()) || (w.Firstname + " " + w.Lastname).StartsWith(filter.Value.ToString())); break; case FilterOperator.Contains: contactList = contactList.Where(w => w.Firstname.Contains(filter.Value.ToString()) || w.Lastname.Contains(filter.Value.ToString()) || (w.Firstname + " " + w.Lastname).Contains( filter.Value.ToString())); break; case FilterOperator.IsEqualTo: contactList = contactList.Where(w => w.Firstname == filter.Value.ToString() || w.Lastname == filter.Value.ToString() || (w.Firstname + " " + w.Lastname) == filter.Value.ToString()); break; } break; case "Company": switch (filter.Operator) { case FilterOperator.StartsWith: contactList = contactList.Where(w => w.Company.StartsWith(filter.Value.ToString())); break; case FilterOperator.Contains: contactList = contactList.Where(w => w.Company.Contains(filter.Value.ToString())); break; case FilterOperator.IsEqualTo: contactList = contactList.Where(w => w.Company == filter.Value.ToString()); break; } break; } return contactList; } Some additional information, I am using NHibernate Linq. Also another problem is that the "Name" column on my grid is actually "Firstname" + " " + "LastName" on my contact entity. We can also assume that all filterable columns will be strings.

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• Which is the best way to catch an expiring domain name? [closed]

  - by newspeak

  I know a similar question has been asked, but I really don't know what to do. There is this .com domain which is currently on redemption period and should likely be available again within a month. I was wondering which is the best way to get it at a reasonable price. I don't think it's a highly valuable domain, it shows to have very bad ranking and has 0 exact same searches according to adwords. Why it is valuable to me is very simple: I have a project responding to this name. I already own the .net domain and would love to have the .com. I discovered the domain was going to be available thanks to an email I received by a backorder site. I did some research and these guys have a bad reputation on the web. I did further research and found that more reputable (at least in theory) companies should be the likes of snapnames, pool, namejet, godaddy, etc. I am a bit suspicious using these drop cathing services: What if they shill bids? What if they make it go into auction even if I'm the only person interested? What if I raise attention and interest to the domain by backordering? I just would rather wait for it to be deleted and available again to register it manually. It is really not an interesting domain name, and I don't think anyone would care to have it. But what if the domain is already being watched by the domain industry sharks? I did a whois research and my desired domain nameserves point to domcollect.com, which appears to be an auction site. What if I decide to wait for manual registration and I miss the chance to get it? I'm willing to spend the 60/70$ fees these sites require, but not really more than that. Suggestions? Thank you very much. I'm a bit confused and undecided.

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