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• Long running stats process - thoughts on language choice?

  - by Josh

  I am on a LAMP stack for a website I am managing. There is a need to roll up usage statistics (a variety of things related to our desktop product), and I initially tackled the problem with PHP (being that I had a bunch of classes to work with the data already). All worked well on my dev box which was using 5.3 Long story short, 5.1 memory management seems to suck a lot worse, and I've had to do a lot of fooling to get the long term roll up scripts to run in a fixed memory space. Our server guys are unwilling to upgrade php at this time. I've since moved my dev server back to 5.1 so I don't run into this problem again... For mining of mysql databases to roll up statistics for different periods and resolutions, potentially running a process that does this all the time in the future (as opposed to on a cron schedule), what language choice do you recommend? I was looking at python (I know it more or less), java (don't know it that well), sticking it out with php (know it quite well). Thanks for any suggestions. Josh

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• Create creative diagrams or find someone creative

  - by devdude

  This question might be slightly non-techy/dev, but I am sure many of you had a similar problem. We code, write test-cases, put comments in source-code (!), put messages in svn commit, write comments in tracked issues. We create ERD/class/usecase/.. diagrams with whatever tool. We might write user-manuals, wikis, guidelines,.. Not everyones cup of tea, but usually practice makes a good tech writer (I experienced that). Now comes the point: Once in a while we need to supply system overview diagrams, drawings of architecure,.. that look appealing to non-technical people, and no, we dont have a marketing department with designers waiting for our input or a $$$$ design company doing our corporate design. If I try to do that, it a) takes forever b) I might not have the tools and c) looks like crap and not like something I want to see in a slideshow. Whats your experience or recipe ? Is there something like RENT-A-DESIGNER ? cheers

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• crossword algorithm....

  - by teddy

  I'm making algorithm like crossword, but i dont know how to design d algorith. for example, there are words like 'car', 'apple' in the dictionary. and the 'app' words is given on the board. and there are letters like 'l' 'e' 'c' 'r'....for making words. so the algorithm work is making correct words which are stored in dictionary. app - lapp- leapp- lecapp- .... - lappe - eappc - ... - appl - apple(correct answer) what is the best solution for this algorithm?

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• Testing C++ program with Testing classes over normally used classes

  - by paultop6

  Hi Guys, This will probably be a bot of a waffly question but ill try my best. I have a simple c++ program that i need to build testing for. I have 2 Classes i use besides the one i actually am using, these are called WebServer and BusinessLogicLayer. To test my own code i have made my own versions of these classes that feed dummy data to my class to test it functionality. I need to know a way of somehow, via a makefile for instance, how to tell the source code to use the test classes over the normally used classes. The test classes are in a different "tester" c++ file, and the tester c++ file also has its own header file. Regards Paul P.S. This is probably a badly worded question, but i dont know any better way to put my question.

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• GD DLL installation

  - by smokinguns

  I'm using the JpGraph library(PHP graphing Lib). I'm getting the foll error: "JpGraph Error Your PHP installation does not seem to have the required GD 2.x library enabled. Please see the PHP documentation, "Image" section. Make sure that "php_gd2.dll" statement is uncomment in the [modules] section in the php.ini file" I uncommented the php_gd2.dll statement in php.ini(in C:\WINDOWS) and set the 'extension_dir' as extension_dir = C:\PHP\extensions (I have a extensions directory and put the php_gd2.dll in this directory ). I restarted IIS and when I fire up my webapp, it doesnt comeup. I commented out the php_gd2.dll and restarted IIS again. The webapp came up. I dont understand what I'm doing wrong. Here is the server config: Windows Server 2003, with IIS Version 6. The PHP version is 4.3.8

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• Jets3t on Android

  - by Chubbs

  Hey guys, I am trying to use the Jets3t library within an Android application, and I keep getting errors with the Rest service when I use the library. 04-27 16:47:39.491: ERROR/S3Service(225): Couldn't initialize a sax driver for the XMLReader I have tried to include the Xerces library and the Crimson library, and it dont play well. I get this error: Attempt to include a core class (java.* or javax.*) in something other than a core library. It is likely that you have attempted to include in an application the core library (or a part thereof) from a desktop virtual machine. This will most assuredly not work. At a minimum, it jeopardizes the compatibility of your app with future versions of the platform. It is also often of questionable legality. If you really intend to build a core library -- which is only appropriate as part of creating a full virtual machine distribution, as opposed to compiling an application -- then use the "--core-library" option to suppress this error message. Is there something I can do to get it working ?

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• HTML5 text wrap

  - by Gwood

  I am trying to add text on an image using the html5 canvas. First the image is drawn and on the image the text is drawn. So far so good. But where i am facing prob is that if the text is too long it gets cut off in the start and end by the canvas. I dont hav eplan to resize the canvas but I was wondering how to wrap the long text into multiple lines so that all of it gets displayed. Can anyone point me at the right direction?

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• Eclipse c++ with mingw comiler cant build boost regex example, can find .a library files

  - by Kim

  Hi, I'm trying to build the boost regex example in eclipse using mingw on vista. I built boost ok with mingw as there are library files XXXX.a. I could build/compile the first boost example that doesnt require any of the compiled boost libraries. When I compile the regex example I get a linker error saying it cant find the library file. I have tried various libray file names eg leave off the .a extension, leave off the lib prefix etc. Now the interesting thing is that if I leave off the library extension and rename the library file to XXX.lib it works and runs ok. So why cant it read the .a library file? It must be my setup somewhere but I dont know where or what to set. From what I read everyone is ok linking the .a file except me :( Thanks in advance, Kim

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• Decisions in teaching someone else to program: language selection

  - by Dinah

  My friend would like for me to guide her into learning programming. She's already proven enormous aptitude for thinking like a programmer but is scared of the idea of programming since in her mind it's relegated to some magical realm accessible only to smart people and trained computer scientists (ironically, I am neither but that's beside the point). My main question is the age-old and irritating question: which language should I chose? I've limited it down to these: PHP: dead simple to start with and I remember enough of the language to answer all novice questions. However, I can think of a million reasons why I wouldn't recommend this as a first language. The most diplomatic of which is that there's no desktop app option to which I would feel comfortable subjecting a novice. Python: supposed to be wonderful for beginners and generally everything I've heard about it screams that this is the correct choice. That's the problem: everything I've heard about it. I don't know it yet and have a lot of projects going on right now so I don't feel like learning it yet -- but I'm going to be the tech-support when any little thing goes wrong. I know there are tons of online resources but in the frustration of the moment, it's always going to be just me. C#: this is the language I'm most comfortable with so I know I can be good tech support. I also love this language and its versatility and community. The big drawback here is that I remember when I first learned it after doing mainly PHP, Perl, and JavaScript and I found the experience overwhelming. You are simultaneously learning: programming concepts, C# syntax, strong typing, OOP, and a complex powerful IDE with a bazillion options and buttons all over it.

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• How do i implement If statement in Flex/bison

  - by Imran

  Hallo, I need help in flex/bison. Im a beginner in flex/bison, and i hav already looked out these programs and somethings i inderstood, but im learning. My problem is, i want to implement a If-statement via Flex/Bison and i dont know how to start how to do, someone any idea, im very thankful for all your help. here is an example i want to implement: :L1 IF FLAG AND X"0001" EVT 23; ELSE WAIT 500 ms; JMP L1; END IF; how do i implement JMP (jump), when JMP comes it has to jump to the Label L1.

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• Iphone UIScrollView and multiple visible images

  - by joynes

  Hi! Im trying to implement a UIScrollView including multiple images, using paginate. The problem is that I want more then one page to be visible in the UIScrollView, but only one page should be selected. I found several solutions in which you handle touch down/up (touchesBegan and touchesEnded) myself and scrollRectToVisible, but I want to avoid this if possible. A sample solution for that can be found at: http://forums.macrumors.com/showthread.php?t=634462 I dont get why its so easy if you only need to display one page at a time in the UIScrollView , but seems really hard if you want to show more pages. Could you solve it with zooming? /Br Johannes

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• Using terminal vs KDE in linux?

  - by Ke

  Hi Im used to using nautilus within centos but have recently just got a VPS and quickly realising that using a KDE is unacceptable in this environment. Although I do find it so much quicker doing things like folder permissions in KDE rather than typing it all out in the terminal? Everyone I speak to says, use the terminal and I should learn this way as opposed to using the KDE, but theres certain things I just dont get How is it possible to make quick changes to scripts and viewing them in a browser etc , without a mouse or using KDE? and only using a terminal?? I am wondering how to develop websites just using the terminal??? How can it be quicker to type out/view permissions etc in the terminal when its instant and just a few clicks in the KDE? Any thoughts are much appreciated. I would love to understand the benefits but just cant seem to see them right now. Cheers Ke.

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• How to get function name against function address by reading co-classs'es vtable?

  - by Usman

  Hello, I need to call the co-class function by reading its address from vtable of COM exposed interface methods. I need some generic way to read addresses. Now I need to call the function, which would have specific address(NOT KNOWN) arguments(parameters) which I have collected from TLB, and name as well. How that address corresponds to that function name to which I am going to call. For this I need to traverse vtable which is holding functional addresses, LASTLY need to correspond function address with NAME of that function. This is I dont know. How? More over one function with the same name may appear in vtable(Overloading case). In that case we need to distinguish function names w.r.t their addresses. How to tackle ? Regards Usman

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• Interfaces with hibernate annotations

  - by molleman

  Hello i am wondering how i would be able to annotate an interface @Entity @Table(name = "FOLDER_TABLE") public class Folder implements Serializable, Hierarchy { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "folder_id", updatable = false, nullable = false) private int fId; @Column(name = "folder_name") private String folderName; @OneToMany(cascade = CascadeType.ALL) @JoinTable(name = "FOLDER_JOIN_FILE_INFORMATION_TABLE", joinColumns = { @JoinColumn(name = "folder_id") }, inverseJoinColumns = { @JoinColumn(name = "file_information_id") }) private List< Hierarchy > fileInformation = new ArrayList< Hierarchy >(); above and below are 2 classes that implement an interface called Hierarchy, the folder class has a list of Hierarchyies being a folder or a fileinformation class @Entity @Table(name = "FILE_INFORMATION_TABLE") public class FileInformation implements Serializable, Hierarchy { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "file_information_id", updatable = false, nullable = false) private int ieId; @Column (name = "location") private String location; i have serached the web for someway to annotate or a workaround but i cannot map the interface which is simply this public interface Hierarchy { } i get a mapping exeception on the List of hierarchyies with a folder but i dont know how to map the class correctly

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• crystal report problem

  - by Baharanji

  Dear all, I have a Table which Contains items and its prices and those prices some in Dollars and the rest in pounds and the items are divided into sections and I want to use a modified Sum function in the Crystal Report so as to show at the end of each group the total in pounds like that in C# int price=0; foreach (item it in items) { if (it.curr=="$") { price+=it.price*DollarPrice } else price+=it.price; } return price; That's exactly what i want to do in crystal reports but i dont have any clue how to do so So if you have any Idea please help me, Regards, Baher.

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• Average function without overflow exception

  - by Ron Klein

  .NET Framework 3.5. I'm trying to calculate the average of some pretty large numbers. For instance: using System; using System.Linq; class Program { static void Main(string[] args) { var items = new long[] { long.MinValue + 100, long.MinValue + 200, long.MinValue + 300 }; try { var avg = items.Average(); Console.WriteLine(avg); } catch (OverflowException ex) { Console.WriteLine("can't calculate that!"); } Console.ReadLine(); } } Obviously, the mathematical result is 9223372036854775607 (long.MaxValue - 200), but I get an exception there. This is because the implementation (on my machine) to the Average extension method, as inspected by .NET Reflector is: public static double Average(this IEnumerable<long> source) { if (source == null) { throw Error.ArgumentNull("source"); } long num = 0L; long num2 = 0L; foreach (long num3 in source) { num += num3; num2 += 1L; } if (num2 <= 0L) { throw Error.NoElements(); } return (((double) num) / ((double) num2)); } I know I can use a BigInt library (yes, I know that it is included in .NET Framework 4.0, but I'm tied to 3.5). But I still wonder if there's a pretty straight forward implementation of calculating the average of integers without an external library. Do you happen to know about such implementation? Thanks!! UPDATE: The previous example, of three large integers, was just an example to illustrate the overflow issue. The question is about calculating an average of any set of numbers which might sum to a large number that exceeds the type's max value. Sorry about this confusion. I also changed the question's title to avoid additional confusion. Thanks all!!

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• Mapping table and a simple view with Fluent NHibernate

  - by adrin

  I have mapped a simple entity, let's say an invoice using Fluent NHibernate, everything works fine... after a while it turns out that very frequently i need to process 'sent invoices' (by sent invoices we mean all entities that fulfill invoice.sent==true condition)... is there a way to easily abstract 'sent invoices' in terms of my data access layer? I dont like the idea of having aforementioned condition repeated in half of my repository methods. I thought that using a simple filtering view would be optimal, but how could it be done? Maybe I am doing it terribly wrong and someone would help me realize it :)?

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• Simple OpenCV problem.

  - by iamcreasy

  Why I try to run the following OpenCV program, it shows the following error : ERROR: test_1.exe - Application Error The application failed to initialize properly (0x80000003). Click on OK to terminate the application. CODE: #include "cv.h" #include "highgui.h" int main() { IplImage *img = cvLoadImage("C:\\face.bmp"); cvSetImageROI(img, cvRect(100,100, 100, 100)); cvAddS(img, cvScalar(50), img); cvResetImageROI(img); cvShowImage("Test", img); cvWaitKey(0); return 0; } When i press F5(im using vs2008express), the program encounters a break point...i have attached a picture...dont know, whether, it will help or not. Error Snapshot Link It is not that, only this program is producing this error, but also any kind of image manipulation funciton containing (OpenCV)program is resulting in this sitution. Such as : cvSmooth one last thing, it there any dedicated OpenCV forum or sth like that?

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• Enabling a trace spec on Glassfish v2

  - by Kiran

  Hi Guys, I guess this might be answered previously but I dont seem to find one answered . Can anyone please lemme know hot to add a trace spec in Glassfish v2. Am very much new to this so not much aware of this. I need to enable a security trace string and orb trace string on Glassfish v2 .On Glassfish v3 I see a file called logging.properties where all the trace string been given , is there any such file on v2 to work with or we need to add a property to domain.xml. Thanks in advance.

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• Send parameters in order in HTTPService

  - by Suraj Chandran

  I am trying to work with a simple HTTPService. The problem is that my webservice is conscious of the order of arguments it gets. I will tell the problem with an example: var service:HTTPService = new HTTPService(); var params:Object = new Object(); params.rows = 0; params.facet = "true"; service.send(params); Note that in the above code I have mentioned the parameter rows before facet, but the url I recieve is facet=true&rows=0. So I recieve the argument rows before facet and hence my webservice does not work. I figured out that the contents of array is always sent in alphabetical order, which I dont want. Is there any way I can achieve explict ordering of parameters sent? Note that I am not in power of changing the logic of webservice(its basically a RPC service supporting both desktop and web client). Thanks.

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• Change the Views location

  - by Vinni

  I am developing a website in MVC 2.0. I want to change the View folder location in my website. I wanted to keep the views folder inside other folders, When I try to do so i am getting following errors The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. My Views folder will be in ~/XYZ/ABC/Views instead of ~/Views. Please solve my problem. Will I get any problems If I change the default Views folder location. Do I need to change anything in HTML Helper classes because I don't know anything in MVC as this is my starting project i dont want to risk..Please help me out...

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• MYSQL: Like Method, Similar Words - But Don't Show the Searched Word

  - by elmaso

  Hello, actually i use this method to show similar words for a search request.. $query = "SELECT * FROM searches WHERE Query LIKE '%$search%' ORDER BY Query"; if someone searches for "nelly" it looks up in the database for similar words "nelly furtado, nelly ft. kelly"... but i dont want to show up the searched word.. example: you've searched for nelly - try this too: nelly, nelly furtado, nelly ft., the bold word should not showed up again, because it's the searched word.. is there maybe a method with MATCH AGAINST? thank you!

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• Spring MVC Web PetClinic Tutorial?

  - by wuntee

  Is there a tutorial that goes along with the PetClinic application? I have been trying to find one, but google is not helping me today. Specifically, I dont understand things like: @Autowired - what does that even mean? @RequestMapping(method = RequestMethod.GET) public String setupForm(@RequestParam("petId") int petId, ModelMap model) { Pet pet = this.clinic.loadPet(petId); model.addAttribute("pet", pet); return "petForm"; } How can a request return just a string? Shouldnt it need to return some sort of ModelAndView? Or does the application somehow redirect to whatever is returned? A lot of confusing concepts - if there is a tutorial, or video (like spring-security has) that would be very helpful. Thanks.

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• Hooking up Sproutcore frontend and custom Python backend

  - by Suvir

  Hello everyone, I am building a web-based application. The frontend has been designed in Sproutcore. For the backend, we have our own python API which handles all transactions with multiple databases. What is the best way to hook up the front-end with the back-end. AFAIK django is pretty monolithic (correct me if i am wrong) and it would be cumbersome if I dont use its native ORM...I would prefer a python-based solution..any ideas? thanks! Suvir

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• Winforms Controlling Forms

  - by jack london

  How can i control all my forms from main () static void Main() { Form1 frm1 = new Form1(); Form1 frm2 = new Form1(); Form1 frm3 = new Form1(); frm1.Show(); while (frm1.Button.Clicked) { frm2.Show(); frm3.Show(); } } form.ShowDialog () helps much but the execution stack can overflow. Form.Show and Form.Hide methods runs when an application class has been set. In Application.Run (Form) way there's always a main form. and i dont want this one. Any other approach you use in this problem

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