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  • How to calculate line count for project

    - by sixtyfootersdude
    I am taking a software engineering class right now. Our assignment is to evaluate Mozilla's Thunderbird. Our assignment is to evaluate the size of Thunderbird. One metric that we need to use is the number of lines of code in the project. (Lines of code meaning not including comments or new lines). Is there a standard way to find the number of lines or am I better off just cracking out a script to do this? I think that I could do something like this: # remove all comments find -name *.java | \ sed "/\/*/,\*\// s/.*//g | \ # remove multiline comments sed s/\/\///g # remove single line comments # count not empty lines find -name *.java | grep -c "<character>" But I would need to do that for each file type. It seems like there should be some utility that does that already. (something mac/unix compatible would be preferable).

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  • Arguments of using WCF/OData as access layer instead of EF/L2S/nHibernate directly

    - by Carl Hörberg
    We develop mostly low traffic but highly specialized web applications. Normally we use L2S, EF or nHibernate as access layer and then throws Asp.Net MVC to it and in which for normal crud operations we query the ISession/DataContext directly but for more advanced functions/side effects we put it in a some kind of service layer. Now, i was think about publishing the data through OData (WCF Data Service) and query that from the controllers (or even from jQuery when the a good template engine shows up) and publish the service operations through a WCF service (or as custom methods on the WCF Data Service?). What advantages/disadvantages does this architecture poses? Do I gain something except higher complexity and latency? Better separations of concerns (or is it just a illusion)?

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  • C# winforms Picturebox, backgroundimage zoomed at the top?

    - by Oskar Kjellin
    I have a picturebox where I set change the BackgroundImage frequently. I have a the BackgroundImageLayout set to Zoom. The problem is that when an image does not have the same scale as the picturebox, the picture is drawn in the middle. That is, the top and the bottom padding of the picturebox is always the same. I would like for the BackgroundImage to always be aligned at the top. What is the easiest and most performance efficient way of doing this? I can add that I download the images from the internet. If you think that the best way to deal with this is to resize them at that point I can do that :)

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  • Freemarker/Velocity - date manipulation

    - by Razor
    Hello, I have a fairly simple question about these 2 templating engines. I'm trying to make a future/paste date, a fixed time from now, e.g. 18 months ago, or tomorrow. I know that it is possible to do this with a java date object inside a velocity/freemarker template (something like $date.add(2,-18)), but I would like to do this with DateTool or freemarker core. This is something that I see as purely presentational (just think at the default dates you see in flight booking forms), so I can't see any reason why a templating engine shouldn't be able to do this. Is it possible though? If so, how?

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  • How to avoid circular relationship in SQL-Server?

    - by Shimmy
    I am creating a self-related table: Table Item columns: ItemId int - PK; Amount money - not null; Price money - a computed column using a UDF that retrieves value according to the items ancestors' Amount. ParentItemId int - nullable, reference to another ItemId in this table. I need to avoid a loop, meaning, a sibling cannot become an ancestor of his ancestors, meaning, if ItemId=2 ParentItemId = 1, then ItemId 1 ParentItemId = 2 shouldn't be allowed. I don't know what should be the best practice in this situation. I think I should add a CK that gets a Scalar value from a UDF or whatever else. EDIT: Another option is to create an INSTEAD OF trigger and put in 1 transaction the update of the ParentItemId field and selecting the Price field from the @@RowIdentity, if it fails cancel transaction, but I would prefer a UDF validating. Any ideas are sincerely welcomed.

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  • Updating fields of values in a ConcurrentDictionary

    - by rboarman
    I am trying to update entries in a ConcurrentDictionary something like this: class Class1 { public int Counter { get; set; } } class Test { private ConcurrentDictionary<int, Class1> dict = new ConcurrentDictionary<int, Class1>(); public void TestIt() { foreach (var foo in dict) { foo.Value.Counter = foo.Value.Counter + 1; // Simplified example } } } Essentially I need to iterate over the dictionary and update a field on each Value. I understand from the documentation that I need to avoid using the Value property. Instead I think I need to use TryUpdate except that I don’t want to replace my whole object. Instead, I want to update a field on the object. After reading this blog entry on the PFX team blog: Perhaps I need to use AddOrUpdate and simply do nothing in the add delegate. Does anyone have any insight as to how to do this?

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  • drawRect not being called in my subclass of UIImageView

    - by Ben Collins
    I have subclassed UIImageView and tried to override drawRect so I could draw on top of the image using Quartz 2D. I know this is a dumb newbie question, but I'm not seeing what I did wrong. Here's the interface: #import <UIKit/UIKit.h> @interface UIImageViewCustom : UIImageView { } - (void)drawRect:(CGRect)rect; And the implementation: #import "UIImageViewCustom.h" @implementation UIImageViewCustom - (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { } return self; } - (void)drawRect:(CGRect)rect { // do stuff } I set a breakpoint on drawRect and it never hits, leading me to think it never gets called at all. Isn't it supposed to be called when the view first loads? Have I incorrectly overridden it?

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  • Why aren't we programming on the GPU???

    - by Chris
    So I finally took the time to learn CUDA and get it installed and configured on my computer and I have to say, I'm quite impressed! Here's how it does rendering the Mandelbrot set at 1280 x 678 pixels on my home PC with a Q6600 and a GeForce 8800GTS (max of 1000 iterations): Maxing out all 4 CPU cores with OpenMP: 2.23 fps Running the same algorithm on my GPU: 104.7 fps And here's how fast I got it to render the whole set at 8192 x 8192 with a max of 1000 iterations: Serial implemetation on my home PC: 81.2 seconds All 4 CPU cores on my home PC (OpenMP): 24.5 seconds 32 processors on my school's super computer (MPI with master-worker): 1.92 seconds My home GPU (CUDA): 0.310 seconds 4 GPUs on my school's super computer (CUDA with static domain decomposition): 0.0547 seconds So here's my question - if we can get such huge speedups by programming the GPU instead of the CPU, why is nobody doing it??? I can think of so many things we could speed up like this, and yet I don't know of many commercial apps that are actually doing it. Also, what kinds of other speedups have you seen by offloading your computations to the GPU?

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  • Too late to become a programmer?

    - by Tomas
    Hi, Working in IT for 5 years, I focused on system integration - testing, performance tests and analysis, automation etc. Altough I am working for one of the biggest IT companies, I have the possibility to come up with my own ideas and realize them - for example I have written C# (with SQL backend) bugtracker application with management elements...and I really liked it. I am very creative person but being 25 y/o, I am wondering whether it is too late. I understand the logic of programming but as I was never very good in math I assume I have no chance to become professional programmer in this age. What do you think? Thanks

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  • jQuery .post gets null data

    - by Andrew Flusche
    Hey everyone. This is my first post here, so I hope I'm doing it appropriately. I have several jQuery $.post calls that work just fine. They send data to a PHP script that modifies a database and returns some data. No problem. But this one doesn't work. The returned data is just NULL. $.post("act_addTaskLog.php", {description: $("#logFormDescription").val(), complete: $("#logFormComplete").is(':checked'), taskId: $("#logFormTaskId").val(), user: <?php echo $_SESSION['user']; ?>}, function(data) { alert("data: " + data); } ); I've tried everything I can think of, to no avail. I've even tried just one line in my PHP script: die("true"); Firebug shows that the script is being executed, but it's not completing. The alert message displays just with the label "data:" in it, no actual data. Thanks in advance for your help!

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  • Best DataMining Database

    - by Eric
    I am an ocasional Python programer who only have worked so far with MYSQL or SQLITE databases. I am the computer person for everything in a small compamy and I have been started a new project where I think it is about time to try new databases. Sales departament makes a CSV dump every week and I need to make a small scripting application that allow people form other departaments mixing the information, mostly linking the records. I have all this solved, my problem is the speed, I am using just plain text files for all this and unsurprisingly it is very slow. I thought about using mysql, but then I need installing mysql in every desktop, sqlite is easier, but it is very slow. I do not need a full relational database, just some way of play with big amounts of data in a decent time. Many thanks!

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  • VS 11 Beta Cannot start process because a file name has not been provided

    - by Leniel Macaferi
    This is what I'm getting when I build my Test project: With this I'm unable to run my tests since they're not being discovered by VS. See the message "Unexpected error detected. Check the Tests Output Pane for details." at the window bottom. Now if you look at the Tests OUTPUT pane you'll have no clue about what's the problem. This is extremely helpful... :) I know VS 11 is in beta but it used to work... I've already restarted VS but it didn't work after that too. Any ideas about what's going on? Would it be a bug somewhere? Note: the only thing I can think is related with VS 2010 uninstall I did sometime ago. Maybe it uninstalled some necessary bits. Beats me...

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  • How can I stop SQL Server Reporting Services 2008 going to sleep?

    - by Nick
    I have SSRS 2008 set-up on a server. All works fine except that if left inactive for a length of time the next time a request is made to the server it takes a long time for it to service it. I think this is to do with the worker process being shutdown after being idle for a certain length of time. However, as SSRS 2008 isn't managed through IIS I can't find any settings that I can adjust to stop this from happening. In IIS I'd go to the Performance tab of the Application Pool Properties and choose not to shutdown the worker process. How can I do this for SSRS 2008?

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  • OracleXETNSListener won't start

    - by David
    For some unknown reason OracleXETNSListener won't start which prevents SQL Developer from connecting to it. C:\oraclexe\app\oracle\product\10.2.0\server\NETWORK\ADMIN\listener.ora and C:\oraclexe\app\oracle\product\10.2.0\server\NETWORK\ADMIN\tnsnames both have correct hostname. C:\oraclexe\app\oracle\product\10.2.0\server\NETWORK\log\sqlnet has the following error: *********************************************************************** Fatal NI connect error 12641, connecting to: (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq))) VERSION INFORMATION: TNS for 32-bit Windows: Version 10.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 10.2.0.1.0 - Production Time: 09-MAY-2010 18:08:29 Tracing not turned on. Tns error struct: ns main err code: 12641 TNS-12641: Authentication service failed to initialize ns secondary err code: 0 nt main err code: 0 nt secondary err code: 0 nt OS err code: 0 The only thing I can think of is that I may have changed my workgroup recently, but I don't know why that would matter. Any ideas would be greatly appreciated.

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  • Best Practices for persisting iPod Playlist (MPMediaItemCollection) across sessions

    - by coneybeare
    When using in-app audio in the iPhone SDK, it is possible to allow users to select a list from their ipod library and create an in-app local playlist. If I want to persist this choice, it is easy to serialize the data and write to file, then recover. Just vanilla like this, however, leads me to think there is going to be something wrong. For example, what if the user syncs and removes sounds? I can loop across them all and query the iPod DB at setup time, but with lists that could be 50,000 long, this could take some time. How are other people doing this and what are some gotchas that I haven't though about?

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  • Error when using TransformToAncestor: "The specified Visual is not an ancestor of this Visual."

    - by Brian Sullivan
    I'm trying to get the offset of a control relative to the top of its window, but I'm running into trouble when using the TransformToAncestor method of the control. Note: this code is in a value converter which will convert from a control to its relative Y position in relation to the window. public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { var ctrl = (Control) value; var win = Window.GetWindow(ctrl); var transform = ctrl.TransformToAncestor(win); // Exception thrown here. var pt = transform.Transform(new Point(0, 0)); return pt.Y; } The call to Window.GetWindow works just fine, and returns the correct window object inside which the control resides. Am I misunderstanding what WPF thinks of as an "ancestor"? I would think that given the result of GetWindow, that window would be an ancestor of the control. Are there certain nesting patters that would cause the line of ancestry to be cut off at a certain point?

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  • C# HttpWebResponse Error 502 Bad Gateway

    - by Sten Koning
    So i'm using this class to POST on a webpage. The server i'm trying to POST to gives me a 502 Bad Gateway error. I think it has something to do with the user agent. I've already added my firefox user agent to the request but it seems to lose it on the response. I've tried using google and found some other articles on this like this one: Error 502 (Bad Gateway) when sending a request with HttpWebRequest over SSL but I don't know how to fix it since im not that good at c#. Greetings, Sten.

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  • Doubt in action script for Flex: getting unique elements from an ArrayCollection

    - by Nirmal Singh Raja Reegan
    Hi, I have an ArrayCollection as mentioned below. private var initDG:ArrayCollection = new ArrayCollection([ {fact: "Order #2314", appName: "AA"}, {fact: "Order #2315", appName: "BB"} {fact: "Order #2316", appName: "BB"} ... {fact: "Order #2320", appName: "CC"} {fact: "Order #2321", appName: "CC"} ]); I want to populate a ComboBox with UNIQUE VALUES of "appName" field from the ArrayCollection initDG. <mx:ComboBox id="appCombo" dataProvider="{initDG}" labelField="appName"/> One method I could think is to loop through the Array objects and for each object check and push unique appName entries into another Array. Is there any better solution available?

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  • Has there ever been a great print version of Why’s Poignant Guide to Ruby?

    - by Paul D. Waite
    Although it’s probably meant to be experienced on the web, I’d love to read a great print version of Why’s Poignant Guide to Ruby. It’s liberally licensed, so I can run off a copy for myself. But I think a work like that deserves more. Full colour illustrations. Main text on the left-hand page, sidebars on the right. (Stick in a few cartoons, or a slice of onion, when there aren’t any sidebars.) A built-in MP3 player and headphones for the soundtrack, but made completely out of telephone wires. Whilst that might be wishing for too much, have you (ever) seen any decent print versions of the book available?

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  • Mutable class as a child of an immutable class

    - by deamon
    I want to have immutable Java objects like this (strongly simplyfied): class Immutable { protected String name; public Immutable(String name) { this.name = name; } public String getName() { return name; } } In some cases the object should not only be readable but mutable, so I could add mutability through inheritance: public class Mutable extends Immutable { public Mutable(String name) { super(name); } public void setName(String name) { super.name = name; } } While this is technically fine, I wonder if it conforms with OOP and inheritance that mutable is also of type immutable. I want to avoid the OOP crime to throw UnsupportedOperationException for immutable object, like the Java collections API does. What do you think? Any other ideas?

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  • Reference from UITableViewCell to UITableView to UINavigationController

    - by Nick
    If the user taps and holds on a Foo table view cell for 2 seconds, a modal view should be shown. The modal view is also displayed when a new Foo is added to the cell. The modal view's delegate protocol is implemented by the parent UITableView subclass. My tap and hold detection code is in the Foo UITableViewCell class. I'm having difficulty referencing the parent tableview's navigation controller to display the modal view. FooModalViewController *modalController = [[FooModalViewController alloc] initWithNibName:@"FooModalViewController" bundle:nil]; FooTableViewController *tableView = (FooTableViewController *) self.superview; foo.delegate = tableView; Seems OK but I'm having problems referencing the navigation controller that contains the tableview.. The code below builds OK but throws an exception - NSOBject DoesNotRecognizeSelector. UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:modalController]; [[tableView.navigationController] presentModalViewController:navigationController animated:YES]; I think that perhaps my design is flawed..?

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  • Connect to a wireless network programmatically

    - by Josh Adams
    I'm trying to write an application that connects to my company's wireless network automatically on windows XP. I've found the Wireless LAN API but it requires me to have some hotfix installed on the machine, and you need to have sp2 or higher(There are machines with SP1, and I'm required to support any XP machine). I've tried to find some samples about Wireless Zero Configuration on MSDN but with no luck, only samples I've found are for WinCE, I think Microsoft stopped supporting it. In addition I couldn't find where to download the dll and header file for working with the WZC. There must be a way to do it and work on any service pack because I've found Zwlancfg by ENGL

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  • How to render a partial and and a javascript file in the same time in Rails ?

    - by master2004
    Hi. My main intention is to keep the functionality independent form the Javascript, to have it gracefully degradable. Maybe I am trying to go where I want the wrong way but the main idea is: there are some jQuery UI tabs and when the user presses a link, a new tab is added corresponding to that action $("#tabs").tabs('add', "/groups", "My Groups"); the controller identifies the AJAX request and renders only the partial for that tab if request.xhr? render :partial => "index_tab" end at this point I would like the Javascript file associated with the /groups/index action to be executed as well, meaning the index.js.erb file in the groups folder. because of the "only one render" rule I couldn't think of a nice way to do it and I am in need of a fast solution. Thank you for any suggestions you might have.

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  • DB structure for Twitter home/Facebook wall?

    - by mathon12
    Basically a live feed of all your friends' recent posts. In a stupid sort of approach I think I'd start by building a query like: SELECT * FROM tblposts WHERE userid=friend_id_1OR userid=friend_id_2...... and so on Where friend_id_% is the userid of a friend from your friends list. But this must be a very inefficient way of doing it, right? Is there any faster way of doing this in MySQL? Maybe some clever DB schema? (I know FB uses Hadoob but I'm not experienced enough to go that far :( )

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  • Data Structures

    - by Phoenix
    There is a large stream of numbers coming in such as 5 6 7 2 3 1 2 3 .. What kind of data structure is suitable for this problem given the constraints that elements must be inserted in descending order and duplicates should be eliminated. I am not looking for any code just ideas? I was thinking of a Self-Balancing BST where we could add the condition that all nodes < current node on left and all nodes current node on right, this takes care of the duplicates .. but i don't think they are necessarily inserted in descending order. Any ideas what might be a better choice .. ofcourse it needs to be efficient time and space wise.

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