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  • Is there a way to delay a forced reboot?

    - by jduff
    I realize this is more appropriate for our company's admin group to field. However, pretend they are unresponsive just for the sake of discussion =) If my system is prompting me to reboot now or in a set time (say in 15 mins) is there a way to delay that even further? It is usually just an inconvenient time and I would like to delay beyond the stated time. (ex) System Restart Required: A newly installed program requires this computer to be restarted. Please save your work and restart your computer. Your computer will automatically be restarted in: xxmins... Thanks for any responses in advance!

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  • Adding a trigger command to autocomplete function in zsh

    - by mkaito
    When you define an alias like alias g=git, the shell will pick it up and run the corresponding autocomplete function. Now, there's a program out there called hub, which is basically a supserset of git, with some added, github-specific functionality. The recommended way to use hub is to alias git=hub. Of course, this won't trigger the autocomplete function for git, which makes sense. Now, if I wanted to have git's autocomplete trigger for hub, the only way I know of is editing /usr/share/zsh/functions/Completion/Unix/_git and adding hub in the first line as trigger. While this works, it isn't practical, since this file will get overwritten with the next zsh release. Assuming hub won't provide a zsh completion function any time soon, is there another way of adding hub to the trigger commands for git's autocomplete function?

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  • supervisord failed to start nagiosapi after reboot, need to run reload manually

    - by Bajingan Keparat
    I have supervisord to start nagiosapi everytime the server starts. The API created a status dump file called status.dat, which will get updated periodically. The following is the conf file that starts the api. [program:nagapi] directory = /home/nagapi user = api command = /bin/bash -c "source /home/nagapi/.virtualenvs/nagapi/bin/activate; /home/nagapi/nagios-api/nagios-api" stdout_logfile = /home/nagapi/supervisor_nagios-api_stdout.log stderr_logfile = /home/nagapi/supervisor_nagios-api_stderr.log Everytime i restart the server, supervisord cannot start the api. stderr.log claims that it cannot find the status.dat file located in /var/cache/nagios3. It seems like the files was not created yet when supervisor tried to run the api the first time. I'm saying this because if i do a supervisorctl reload, everything would reload just fine, and the api would run ok about 50 seconds after the reload command completes. should i change the command option of the conf file to check for

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  • Code Behaviour via Unit Tests

    - by Dewald Galjaard
    Normal 0 false false false EN-ZA X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Some four months ago my car started acting up. Symptoms included a sputtering as my car’s computer switched between gears intermittently. Imagine building up speed, then when you reach 80km/h the car magically and mysteriously decide to switch back to third or even second gear. Clearly it was confused! I managed to track down a technician, an expert in his field to help me out. As he fitted his handheld computer to some hidden port under the dash, he started to explain “These cars are quite intelligent, you know. When they sense something is wrong they run in a restrictive program which probably account for how you managed to drive here in the first place...”  I was surprised and thought this was certainly going to be an interesting test drive. The car ran smoothly down the first couple of stretches as the technician ran through routine checks. Then he said “Ok, all looking good. We need to start testing aspects of the gearbox. Inside the gearbox there are a couple of sensors. One of them is a speed sensor which talks to the computer, which in turn will decide which gear to switch to. The restrictive program avoid these sensors altogether and allow the computer to obtain its input from other [non-affected] sources”. Then, as soon as he forced the speed sensor to come back online the symptoms and ill behaviour re-emerged... What an incredible analogy for getting into a discussion on unit testing software? Besides I should probably put my ill fortune to some good use, right? This example provide a lot of insight into how and why we should conduct unit tests when writing code. More importantly, it captures what is easily and unfortunately often the most overlooked goal of writing unit tests by those new to the art and those who oppose it alike - The goal of writing unit tests is to test the behaviour of our code under predefined conditions. Although it is very possible to test the intrinsic workings of each and every component in your code, writing several tests for each method in practise will soon prove to be an exhausting and ultimately fruitless exercise given the certain and ever changing nature of business requirements. Consequently it is true and quite possible whilst conducting proper unit tests, to call any single method several times as you examine and contemplate different scenarios. Let’s write some code to demonstrate what I mean. In my example I make use of the Moq framework and NUnit to create my tests. Truly you can use whatever you’re comfortable with. First we’ll create an ISpeedSensor interface. This is to represent the speed sensor located in the gearbox.  Then we’ll create a Gearbox class which we’ll pass to a constructor when we instantiate an object of type Computer. All three are described below.   ISpeedSensor.cs namespace AutomaticVehicle {     public interface ISpeedSensor     {         int ReportCurrentSpeed();     } }   Gearbox.cs namespace AutomaticVehicle {      public class Gearbox     {         private ISpeedSensor _speedSensor;           public Gearbox( ISpeedSensor gearboxSpeedSensor )         {             _speedSensor = gearboxSpeedSensor;         }         /// <summary>         /// This method obtain it's reading from the speed sensor.         /// </summary>         /// <returns></returns>         public int ReportCurrentSpeed()         {             return _speedSensor.ReportCurrentSpeed();         }     } } Computer.cs namespace AutomaticVehicle {     public class Computer     {         private Gearbox _gearbox;         public Computer( Gearbox gearbox )         {                     }          public int GetCurrentSpeed()         {             return _gearbox.ReportCurrentSpeed( );         }     } } Since this post is about Unit testing, that is exactly what we’ll create next. Create a second project in your solution. I called mine AutomaticVehicleTests and I immediately referenced the respective nunit, moq and AutomaticVehicle dll’s. We’re going to write a test to examine what happens inside the Computer class. ComputerTests.cs namespace AutomaticVehicleTests {     [TestFixture]     public class ComputerTests     {         [Test]         public void Computer_Gearbox_SpeedSensor_DoesThrow()         {             // Mock ISpeedSensor in gearbox             Mock< ISpeedSensor > speedSensor = new Mock< ISpeedSensor >( );             speedSensor.Setup( n => n.ReportCurrentSpeed() ).Throws<Exception>();             Gearbox gearbox = new Gearbox( speedSensor.Object );               // Create Computer instance to test it's behaviour  towards an exception in gearbox             Computer carComputer = new Computer( gearbox );             // For simplicity let’s assume for now the car only travels at 60 km/h.             Assert.AreEqual( 60, carComputer.GetCurrentSpeed( ) );          }     } }   What is happening in this test? We have created a mocked object using the ISpeedsensor interface which we've passed to our Gearbox object. Notice that I created the mocked object using an interface, not the implementation. I’ll talk more about this in future posts but in short I do this to accentuate the fact that I'm not not really concerned with how SpeedSensor work internally at this particular point in time. Next I’ve gone ahead and created a scenario where I’ve declared the speed sensor in Gearbox to be faulty by forcing it to throw an exception should we ask Gearbox to report on its current speed. Sneaky, sneaky. This test is a simulation of how things may behave in the real world. Inevitability things break, whether it’s caused by mechanical failure, some logical error on your part or a fellow developer which didn’t consult the documentation (or the lack thereof ) - whether you’re calling a speed sensor, making a call to a database, calling a web service or just trying to write a file to disk. It’s a scenario I’ve created and this test is about how the code within the Computer instance will behave towards any such error as I’ve depicted. Now, if you’ve followed closely in my final assert method you would have noticed I did something quite unexpected. I might be getting ahead of myself now but I’m testing to see if the value returned is equal to what I expect it to be under perfect conditions – I’m not testing to see if an error has been thrown! Why is that? Well, in short this is TDD. Test Driven Development is about first writing your test to define the result we want, then to go back and change the implementation within your class to obtain the desired output (I need to make sure I can drive back to the repair shop. Remember? ) So let’s go ahead and run our test as is. It’s fails miserably... Good! Let’s go back to our Computer class and make a small change to the GetCurrentSpeed method.   Computer.cs public int GetCurrentSpeed() {   try   {     return _gearbox.ReportCurrentSpeed( );   }   catch   {     RunRestrictiveProgram( );   } }     This is a simple solution, I know, but it does provide a way to allow for different behaviour. You’re more than welcome to provide an implementation for RunRestrictiveProgram should you feel the need to. It's not within the scope of this post or related to the point I'm trying to make. What is important is to notice how the focus has shifted in our approach from how things can break - to how things behave when broken.   Happy coding!

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  • Running remotely an app from a shared folder with PsExec

    - by Stephane
    I am actually not sure that this is possible. let's see: I have a script that runs on a Build server. Let's name this server A. It drops the bins to a shared folder on server B. And I want to run the program on server C. So using caspol I can allow the executable to be ran remotely. that means from B I can run \C\shared\my.exe What I want to do is from A run \C\shared\my.exe on B. SysInternals\PsExec.exe -u username -p password -accepteula \\ServerC -i 0 -d -w \\ServerB\Nightly\Server \\ServerB\Nightly\Server\server.exe The user has all the necessary rights. But, the -w (working directory) options apparently wants a path relative to the server I point to. Any idea?

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  • Understanding top output in Linux

    - by Rayne
    Hi, I'm trying to determine the CPU usage of a program by looking at the output from Top in Linux. I understand that %us means userspace and %sy means system/kernel etc. But say I see 100%us. Does this mean that the CPU is really only doing useful work? What if a CPU is tied up waiting for resources that are not avaliable, or cache misses, would it also show up in the %us column, or any other column? Thank you.

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  • Opportunities in Development in our Swedish office

    - by anca.rosu
    Hi everyone, my name is Henrik and I joined the JRockit group in 2004. Before that my background was Microsoft, as both a Test Competence lead and as a Program Manager. As an Engineering Manager at Oracle I lead a team of 11 developers. I focus on people management and the daily operations of the department with a heavy focus on interaction and dependencies between the groups and departments here at the Stockholm development site. I also make sure my team deliver on our commitments. I would like to give you a brief summary of the Oracle JRockit team: -The development group in Stockholm delivers several products for the Oracle Fusion Middleware stack. Our main products are JRockitVE which allows you to run a Java Virtual Machine without an operating system, the JRockit Java Virtual Machine which is the default jvm for all Oracle middleware products, and the JRockit MissionControl, a set of tools that allows developers to monitor their applications at runtime and perform advanced latency analysis as well as in-production memory leak detection etc. -The office has several departments focusing on different aspects of the product development process, not only to build features and test them but everything from building the infrastructure needed to automatically build and test the products to sustaining engineering that tracks down bugs in customer systems and provide them with patches. Some inspirational lines around what the Oracle JRockit group can offer you in terms of progress, development and learning: - It is a unique chance to get insight and experience building enterprise class software for one of the worlds largest software companies. Here there are almost unlimited possibilities for the right candidate to learn about silicon features and how to implement support for this in software, and to compile optimizations. The position will also give insight into the processes needed to produce software at this level in the industry. If you have any questions related to this article feel free to contact  [email protected].  You can find our job opportunities via http://campus.oracle.com. Technorati Tags: Development,Sweden,Jrockit,Java,Virtual Machine,Oracle Fusion Middleware,software

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  • Windows 7 - Virtualbox host only adapter doesn't get an IP

    - by Craig
    When I create a new host only network adapter, it will not set the IP address I assign to it. After I save the IP address & netmask it looks like it works (I see the Windows 7 User Account Control verification box), but the IP address doesn't get stored on the adapter. I have tried adding/removing the adapter from within virtualbox and settings the values manually in the Windows aapter settings dialogue. I am using a Windows 7 host. Does anyone know why the settings don't get saved, or how to get more information? C:\Program Files\Oracle\VirtualBox>VBoxManage list hostonlyifs Name: VirtualBox Host-Only Ethernet Adapter GUID: 1721835e-e2c8-4f52-90fe-df7227ebe037 DHCP: Disabled IPAddress: 0.0.0.0 NetworkMask: 0.0.0.0 IPV6Address: IPV6NetworkMaskPrefixLength: 0 HardwareAddress: 00:00:00:00:00:00 MediumType: Unknown Status: Unknown VBoxNetworkName: HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter

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  • glibc not found when trying to install Absinthe?

    - by RafLance
    I am trying to install Absinthe 2.0.4 on Ubuntu 11.10 on a netbook. When I try to run the install file, this keeps on happening: rafael@RafLaptop:~/Desktop/absinthe-linux-2.0.4$ ./absinthe.x86 ./absinthe.x86: /lib/i386-linux-gnu/libc.so.6: version `GLIBC_2.15' not found (required by ./absinthe.x86) Do I need to upgrade GLIBC? If so, how do I do that? Since I'm on a netbook I can't use a LiveCD so I wanted to know if there was a way I could fix this issue without reinstalling my whole OS. Any explanations about what GLIBC is exactly would be great too since this is a learning experience for me. I know that GLIBC is a part of libc.so.6 and so I tried to run sudo apt-get install libc.so.6 but was told that it was up to date. But GLIBC isn't? I hope this articulates my problem well, if there are any pieces of missing info or questions to clarity my question, please let me know! ~-~ EDIT/UPDATE: So after some help on the AskUbuntu chat room from user izx, I have gathered the following information/understanding: -I need to run this program with Ubuntu 12.04 or recompile it from source -Upgrading libc on Oneiric to 2.15 while possible, is not an easy task and is not officially supported.

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  • Autoinstall of Microsoft Security Essentials give random error message

    - by vegarwe
    I'm using wpkg to auto install Microsoft security essentials on WinXP. At the first login after the installer finishes I get an error message as msseces.exe starts. After a reboot the message goes away. The error message indicates a random access restriction. "An error has occured in the program. Try to open it again. If this problem continues, you'll need to reinstall Microsoft Security Essentials from the Microsoft Download Center. Error code: 0x80070005" Firstly: Does anyone know why I get this error message? Second: How do I debug this kind of problems? The event log doesn't seem to contain anything useful. Is there a tool to detect and list denied system calls?

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  • OpenGL profiling with AMD PerfStudio 2

    - by Aurus
    I'm rendering just a really small amount of polygons for my UI but however I still tried to increase the FPS. In the end I removed redundant calls which increased the FPS. I really don't want to lose FPS for nothing so I keep looking for more improvements. The first thing I noticed is the "huge" time where no calls are made before SwapBuffer (the black one). Well I know that OpenGL works asynchronous so SwapBuffer has to wait until everything is done. But shouldn't PerfStudio mark this time also as black ? Correct me If I am wrong. The second thing I noticed is that some glUniform2f calls just take longer (the brown ones). I mean they should all upload 2floats to the GPU how can the time be so different from call to call. The program isn't even changed or something like that. I also tried to look at other programs like gDebugger or CodeXL but they often crashed and they show less statistics (only # of calls or redundant calls etc.) EDIT: I also realized that the draw calls also have different durations, which was obvious for me but sometimes drawing more vertices is faster than drawing less vertices.

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  • Oracle@info360: Advance Beyond Point Solutions To An Enterprise Content Strategy

    - by kellsey.ruppel(at)oracle.com
    The info360/AIIM conference is March 22-24 in Washington DC. We have a number of customer speakers this year talking on the theme of “Advance Beyond Point Solutions To An Enterprise Content Strategy.” These customers all started by addressing a particular use case, but then used the infrastructure they had created to quickly and cost effectively stand up solutions to new business problems.  Andy MacMillan, VP of Product Management at Oracle, will give a thought provoking opening keynote at 8:50 AM on Tuesday, March 22nd. He will be joined by Juan Jose Goldschtein, the CIO of the Organization of American States. The OAS has developed a human rights website that is the front end to a case management system for human rights violations. The implementation supports digital signatures on iPads, so their executives can approve workflows and keep cases moving forward while they are busy traveling and investigating abuses.Other customer speakers include:Tom Robinette, Director of Applications and IT Engineering, Dresser-RandRobin Crisp, Program Manager, FDAMonica Crocker, Corporate Records Manager, Land O’ LakesBrian Skapura, The American Institute of ArchitectsKathy Adams and Leslie Becker, The Nature ConservancyIrfan Motiwala, Sr. VP, Moody’s Investment ServicesMolly Wenzler, Director of Electronic Media, MeadWestvaco Other sessions include our Super Session that kicks off the Oracle Track @info360 on Wednesday. At 11:00 AM, Senior Director of Product Marketing, Howard Beader will present The Social Enterprise – Combining People, Processes and Content. This session will focus on how customers have brought social media, business process management, and content management together to supercharge their organizations. Oracle customers can arrange one-on-one meetings with Oracle executives and product experts, and attend the VIP customer appreciation event. Oracle will be joined by Oracle partners:FujitsuKesteTeamInformaticsKapowSena SystemsDTIYou can learn more about discounts for Oracle customers and register on our Oracle@info360 page.To see more about the customers and sessions that will be presented, you can look at the Oracle Track page on the AIIM/info360 website.Technorati Tags: oracle, AIIM, info360, content management, social enterprise

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  • Who to run Marcomedia Projector executables on Windows 7?

    - by shinjin
    When I try to use an old app created using Macromedia Projector in Windows 7, it crashes after the first few screens. The same programs works fine on XP. I receive this error message after a few screens: Error A Fatal Error has occurred. Click OK to Quit. Pressing OK brings me a fresh one: Microsoft Visual C++ runtime Library This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. And finally I get a Macromedia Projector has stopped working message. I have already tried adjusting compatibility mode, or adding this program to the Data Execution Prevention exceptions, but none helped.

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  • How to go about scheduling a task in windows 7 to change wireless connection

    - by Skindeep2366
    This may or not be something that can be done. I cannot find anything on the wireless connection manager built into windows 7 let alone methods for passing params into it. Problem is as follows: I have 2 wireless routers. One provides internet access, the other provides sole access to the local network. Every day at 4am the main system creates a backup in 2 locations. One is a External usb drive, the other is a location on the network. This is all cool if it is remembered to change over to the local network router before leaving. But if it is forgotten the roof will collapse, the walls will burn, and I will be... well you get the idea. Solution: there is already a custom event that fires a automated backup program at 4am everyday. I need someway to force the wireless network to use the correct connection at say 3:58am everyday. Any ideas????

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  • Skyrim Creation Kit with Xbox 360

    - by funseiki
    I posted this on stackoverflow but was advised to post here (here is a link to the stackoverflow question). I'm hoping for constructive feedback on its plausibility. Update on progress: It looks like there are ways to stuff files back onto the console (horizon, modio, xplorer360, etc) and they do require some form of signing. As of now, though, I've had no luck. I was hoping I could get away with just placing the ".esp" into the directory containing marketplace downloads for Skyrim, along with the signed ".bsa" file (basically a zipped up file containing any extra content the .esp will need to refer that doesn't exist in the basic game). This doesn't work, at least not in the ways I've tried, so next I'm going to try install the entire game to my flash drive (if possible) and attempt to traverse through the game's directory (this is probably unlikely). If anyone else has suggestions or luck or wants more detail on my failures comment/answer away. Here is the question: I'm thinking about buying the PC version of Skyrim to get the Creation Kit (I already own a copy for the Xbox). I have read the faq and scoured plenty of forums to see if there was some way to mod Skyrim for a console (Xbox 360, in particular), but they are generally coming up negative. I realize the CreationKit is on the PC, but I was wondering if there was a way to set up the '.esp' (hopefully I'm interpreting this correctly) files to be placed on the Xbox 360 file system in a similar manner to how game add-ons are downloaded from the Xbox Live Marketplace. I believe it is possible to transfer saves between the console and the PC (e.g. google: 'skyrim mod xbox360'), but these are referencing items that already exist in the game (e.g. a console command for maximum carry weight does not require reference to new animations or models). It would probably be easier if one could navigate through the xbox's file system to see where the games' files are placed, but with the current setup, the file system is abstracted away. Any help or insight on the matter would be much appreciated. I would love to work on a project that would make it possible to let console gamers experience and enjoy all the great mods available to the PC community.

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  • Taking ownership of trustedinstaller files?

    - by P a u l
    vista32-sp1: I am unable to delete some files on my system that were installed with 'special permissions' by 'trustedinstaller'. I find the usual help suggestion to use 'takeown' is not working, all I get is access denied. I refuse to believe there isn't some way to delete these files, or that microsoft has finally acheived their perfect security filesystem. This is NOT a case of a file being locked by a process. If this is all it was, I could solve this by myself. I know there are some recommended unlocking programs and they might do some sort of file system trick, but I would like to know what my possible direct actions might be. If a 3rd party program can 'unlock' a file, I want to know the mechanism. But like I said 'takeown' at the command line is not working for this.

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  • Code contracts and inheritance

    - by DigiMortal
    In my last posting about code contracts I introduced you how to force code contracts to classes through interfaces. In this posting I will go step further and I will show you how code contracts work in the case of inherited classes. As a first thing let’s take a look at my interface and code contracts. [ContractClass(typeof(ProductContracts))] public interface IProduct {     int Id { get; set; }     string Name { get; set; }     decimal Weight { get; set; }     decimal Price { get; set; } }   [ContractClassFor(typeof(IProduct))] internal sealed class ProductContracts : IProduct {     private ProductContracts() { }       int IProduct.Id     {         get         {             return default(int);         }         set         {             Contract.Requires(value > 0);         }     }       string IProduct.Name     {         get         {             return default(string);         }         set         {             Contract.Requires(!string.IsNullOrWhiteSpace(value));             Contract.Requires(value.Length <= 25);         }     }       decimal IProduct.Weight     {         get         {             return default(decimal);         }         set         {             Contract.Requires(value > 3);             Contract.Requires(value < 100);         }     }       decimal IProduct.Price     {         get         {             return default(decimal);         }         set         {             Contract.Requires(value > 0);             Contract.Requires(value < 100);         }     } } And here is the product class that inherits IProduct interface. public class Product : IProduct {     public int Id { get; set; }     public string Name { get; set; }     public virtual decimal Weight { get; set; }     public decimal Price { get; set; } } if we run this code and violate the code contract set to Id we will get ContractException. public class Program {     static void Main(string[] args)     {         var product = new Product();         product.Id = -100;     } }   Now let’s make Product to be abstract class and let’s define new class called Food that adds one more contract to Weight property. public class Food : Product {     public override decimal Weight     {         get         {             return base.Weight;         }         set         {             Contract.Requires(value > 1);             Contract.Requires(value < 10);               base.Weight = value;         }     } } Now we should have the following rules at place for Food: weight must be greater than 1, weight must be greater than 3, weight must be less than 100, weight must be less than 10. Interesting part is what happens when we try to violate the lower and upper limits of Food weight. To see what happens let’s try to violate rules #2 and #4. Just comment one of the last lines out in the following method to test another assignment. public class Program {     static void Main(string[] args)     {         var food = new Food();         food.Weight = 12;         food.Weight = 2;     } } And here are the results as pictures to see where exceptions are thrown. Click on images to see them at original size. Violation of lower limit. Violation of upper limit. As you can see for both violations we get ContractException like expected. Code contracts inheritance is powerful and at same time dangerous feature. Although you can always narrow down the conditions that come from more general classes it is possible to define impossible or conflicting contracts at different points in inheritance hierarchy.

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  • Radeon hd 6570 black screen

    - by Sho
    I got some problem with new graphic card. Every time I use AMD Catalyst drivers on Windows or Linux, screen repeatedly goes black. This usually shows u when i open new cards in a browser, resize a window or run a program. Card runs smoothly on basic drivers but this means low resolution. 1940x1080 is native for my monitor so it causes a lot of problems. I've got a 600W Deus G1, so the power is not the problem. Maybe its a silly question, but would going form a vga cable to hdmi help to improve this situation? If not, can it be caused by slow processor or old mainboard? Im getting kinda confused about this whole thing...

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  • Where can I find design exercises to work on?

    - by Oak
    I feel it's important to continue practicing my problem-solving skills. Writing my own mini-projects is one way, but another is to try and solve problems posted online. It's easy to find interesting programming quizzes online that require applying clever algorithms to solve - Project Euler is one well-known example. However, in a lot of real-life projects the design of the software - especially in the initial phases - has a large impact and at later stages it cannot be tweaked as easily as plain algorithms. In order to improve these skills, I'm looking for any collection of design problems. When I say "design", I mean the abstract design of a software solution - for example what modules will there be and what are the dependencies between them, how data will flow in the program, what sort of data needs to be saved in the database, etc. Design problems are those problems that are critical to solve in the early stages of any project, but their solution is a whiteboard diagram without a single line of code. Of course these sort of problems do not have a single correct solution, but I'll be especially happy with any place that also displays pros and cons of the typical solutions that might be used to approach the problem.

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  • Only allow certain processes to connect to MS SQL

    - by Fred
    I've lost the source code for a very old application that connects to a MS SQL-server for some SQL queries. Since the login is hard-coded in the application I can't change the username/password on the server. One day the password will probably be known to the users and we surely need to change it. But how? One idea is to only allow the old application to do the queries on the SQL server and block out any other application like the query analyzer etc. Can I set process permission somehow? The SQL server (MS SQL 2005) and application (C++) are on the same machine It's too costly to rewrite the old program Thanks for help!

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  • Discuss: PLs are characterised by which (iso)morphisms are implemented

    - by Yttrill
    I am interested to hear discussion of the proposition summarised in the title. As we know programming language constructions admit a vast number of isomorphisms. In some languages in some places in the translation process some of these isomorphisms are implemented, whilst others require code to be written to implement them. For example, in my language Felix, the isomorphism between a type T and a tuple of one element of type T is implemented, meaning the two types are indistinguishable (identical). Similarly, a tuple of N values of the same type is not merely isomorphic to an array, it is an array: the isomorphism is implemented by the compiler. Many other isomorphisms are not implemented for example there is an isomorphism expressed by the following client code: match v with | ((?x,?y),?z = x,(y,z) // Felix match v with | (x,y), - x,(y,z) (* Ocaml *) As another example, a type constructor C of int in Felix may be used directly as a function, whilst in Ocaml you must write a wrapper: let c x = C x Another isomorphism Felix implements is the elimination of unit values, including those in tuples: Felix can do this because (most) polymorphic values are monomorphised which can be done because it is a whole program analyser, Ocaml, for example, cannot do this easily because it supports separate compilation. For the same reason Felix performs type-class dispatch at compile time whilst Haskell passes around dictionaries. There are some quite surprising issues here. For example an array is just a tuple, and tuples can be indexed at run time using a match and returning a value of a corresponding sum type. Indeed, to be correct the index used is in fact a case of unit sum with N summands, rather than an integer. Yet, in a real implementation, if the tuple is an array the index is replaced by an integer with a range check, and the result type is replaced by the common argument type of all the constructors: two isomorphisms are involved here, but they're implemented partly in the compiler translation and partly at run time.

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  • Oracle SOA Governance EMEA Workshop for Partners & System Integrators: Nov 5-7th | Madrid, Spain

    - by Lionel Dubreuil
    The EMEA Fusion Middleware Product Management team is delighted to announce an exciting and a much-awaited workshop on our market-leading SOA Governance offering. Oracle SOA Governance solution is Oracle Fusion Middleware's strategic approach to governing SOA. Whether just embarking on an SOA program, or expanding from project or pilot to broader deployment, the Oracle SOA Governance solution closes the loop on measuring SOA success from project inception through to realization, and providing the proof of ROI on SOA. Would your prospects and customers like to: Align their SOA Vision and Execution Improve Decision Making Effectively Manage Business and Technology Change Enable Control Foster Enterprise-wide Collaboration Reduce Development Costs Track their SOA Investments and Returns Demonstrate business value and ROI of SOA This FREE hands-on workshop is dedicated to EMEA Partners & System Integrators (SIs). It'll be delivered by Oracle HQ Product Management and will primarily focus on : SOA Governance as a Strategy and Methodology Hands-on with Oracle Enterprise Repository (OER) and Oracle Service Registry (OSR) When, how and whom to position our SOA Governance offerings Our SOA Governance Rapid Start Service Hands-on sessions for the most popular customer use cases Seats are limited, book now - you cannot afford to miss this training! If you're interested please contact Yogesh Sontakke (yogesh.sontakke-AT-oracle-DOT-com)

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  • Oracle SOA Governance EMEA Workshop for Partners & System Integrators: Nov 5-7th | Madrid, Spain

    - by Lionel Dubreuil
    The EMEA Fusion Middleware Product Management team is delighted to announce an exciting and a much-awaited workshop on our market-leading SOA Governance offering. Oracle SOA Governance solution is Oracle Fusion Middleware's strategic approach to governing SOA. Whether just embarking on an SOA program, or expanding from project or pilot to broader deployment, the Oracle SOA Governance solution closes the loop on measuring SOA success from project inception through to realization, and providing the proof of ROI on SOA. Would your prospects and customers like to: Align their SOA Vision and Execution Improve Decision Making Effectively Manage Business and Technology Change Enable Control Foster Enterprise-wide Collaboration Reduce Development Costs Track their SOA Investments and Returns Demonstrate business value and ROI of SOA This FREE hands-on workshop is dedicated to EMEA Partners & System Integrators (SIs). It'll be delivered by Oracle HQ Product Management and will primarily focus on : SOA Governance as a Strategy and Methodology Hands-on with Oracle Enterprise Repository (OER) and Oracle Service Registry (OSR) When, how and whom to position our SOA Governance offerings Our SOA Governance Rapid Start Service Hands-on sessions for the most popular customer use cases Seats are limited, book now - you cannot afford to miss this training! If you're interested please contact Yogesh Sontakke: [email protected].

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  • Dock displays low-resolution icons

    - by squircle
    Recently, I've noticed that the dock has been starting to display low-resolution icons in place of the former high-resolution icons for common apps like Stickies, Word, iTunes and Preview. Looking at the .icns file within each program, all copies of the icon are present within the file (high and low resolutions), but the dock refuses to display them, leaving some programs looking like this: Restarting doesn't stop this behaviour, nor does a killall Dock, nor removing the icon and replacing it in the dock. In Finder, the icons display normally. Does anybody know what may be causing this issue? Thanks!

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  • Migration of PowerBuilder application to multiplatform

    - by Alex Bibiano
    I developed a client/server application with PowerBuilder in the past for medical clinics and done maintenance for it until now. Now, some clients are asking me to develop a release for Mac/Linux and need some advice about what programming language/technology is best suited for it and the learning curve. It’s not a very very big program but I’m the only developer and have done it in my spare time. PowerBuilder is very productive for this kind of projects (database centric), but it’s not multiplatform and it’s hard to sell PowerBuilder application now days (web, .NET, java sells a lot better with his marketing). My programming skills: - I studied C and C++ in the past (university) but never used it on real projects - Have some Java experience but not in desktop applications - Some experience with Ruby on Rails for web projects - Good skills with PowerBuilder and C# (.NET) (there are my main developing languages) My first dilemma is if I change the desktop application to a web interface, but I think the user will lose some user-experience, and some doctors don’t have a clinic (they are alone at home with my software). I think installing a web application (with webserver) for one user will be overwhelming. If I continue developing desktop application, what is at the moment a good framework/toolset to learn having my skills? Somebody has had similar experiences? A lot of thanks

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