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  • Centralized way of organizing urls in Jersey?

    - by drozzy
    Forgive me if I am asking an obvious question (maybe I missed it in the docs somewhere?) but has anyone found a good way to organize their URLs in Jersey Java framework? I mean organizing them centrally in your Java source code, so that you can be sure there are not two classes that refer to the same Url. For example django has a really nice regex-based matching. I was thinking of doing something like an enum: enum Urls{ CARS ("cars"), CAR_INFO ("car", "{info}"); public Urls(String path, String args) ... } but you can imagine that gets out of hand pretty quickly if you have urls like: cars/1/wheels/3 where you need multiple path-ids interleaved with one another... Any tips?

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  • swf doesn't respond on tomcat

    - by ron
    Hi, I made a war file out of my flex program (includes swf html etc.). I put the war in the tomcat root library (tomcat 6.0.26) I can see that the war was deployed, and i can get to it using http://localhost:8080/dir/myApp.html and see my swf. When i click directly on myApp.html i can see my swf main picture and its buttons in it. But, when i click a button which just popup a message, it doesn't work! On the other hand, When running the mainApp.html from my local drive it works fine. any help?

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  • Objective-C style question: do "release" or "nil" properties in dealloc?

    - by Piotr Czapla
    Hi, Apple usually release ivars in dealloc but is there anything wrong with nilling the properties in dealloc? I mean instead of this: - (void) dealoc(){ [myRetainedProperty release]; [super dealloc]; } write code like this: - (void) dealoc(){ self.myRetainedProperty = nil; [super dealloc]; } I know that it is one additional method call but on the other hand it is safer as it doesn't crashes when you change your property form retain to assign and forget to amend dealloc. What do you think? Can you think about any other reason to use release instead of setting nil besides performance?

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  • Is this a good approach to execute a list of operations on a data structure in Python?

    - by Sridhar Iyer
    I have a dictionary of data, the key is the file name and the value is another dictionary of its attribute values. Now I'd like to pass this data structure to various functions, each of which runs some test on the attribute and returns True/False. One approach would be to call each function one by one explicitly from the main code. However I can do something like this: #MYmodule.py class Mymodule: def MYfunc1(self): ... def MYfunc2(self): ... #main.py import Mymodule ... #fill the data structure ... #Now call all the functions in Mymodule one by one for funcs in dir(Mymodule): if funcs[:2]=='MY': result=Mymodule.__dict__.get(funcs)(dataStructure) The advantage of this approach is that implementation of main class needn't change when I add more logic/tests to MYmodule. Is this a good way to solve the problem at hand? Are there better alternatives to this solution?

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  • C++ DLL which can inform a calling program about its progress

    - by Felix Dombek
    My boss wants me to write a DLL in C++ (MSVC++2010) which can perform a Volume Shadow Copy which he can call from VB6 (or at a later point other languages) and which can give status updates back while it is not finished. He calls it "events". I have the feeling that I finally need to learn COM (I'd rather not ...) ... also, a callback function comes to my mind, but it's surely impossible to hand over function pointers from VB6 to C++? Can someone outline what I have to learn and how this can be accomplished, with or without COM?

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  • How to build a sentence parser using only the c++ standared library?

    - by CiM
    Hello everyone, I am designing a text based game similar to Zork, and I would like it to able to parse a sentance and draw out keywords such TAKE, DROP ect. The thing is, I would like to do this all through the standard c++ library... I have heard of external libraries (such as flex/bison) that effectively accomplish this; however I don't want to mess with those just yet. What I am thinking of implementing is a token based system that has a list of words that the parser can recognize even if they are in a sentence such as "take sword and kill monster" and know that according to the parsers grammar rules, TAKE, SWORD, KILL and MONSTER are all recognized as tokens and would produce the output "Monster killed" or something to that effect. I have heard there is a function in the c++ standard library called strtok that does this, however I have also heard it's "unsafe". So if anyone here could lend a helping hand, I would greatly appreciate it.

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  • Code generation tool, to create C# adapter classes for unit testing?

    - by RyBolt
    I know I wouldn't need this with Typemock, however, with something like MoQ , I need to use the adapter pattern to enable the creation of mocks via interfaces for code I don't control. For example, TcpClient is a .NET class, so I use adapter pattern to enable mocking of this object, b/c I need an interface of that class. I then produce interface ITcpClient, that can then be implemented via a TcpClientAdapter class, which is just plain vanilla adapter pattern implementation. I am looking for a tool to do this automatically (creation of interface and adapter), I would think there is one out there somewhere? (or is everyone just hand coding these)

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  • Notepad++ Move Caret Outside Bracket

    - by marknadal
    I've searched everywhere and can't find an answer to something incredibly simple and useful for Notepad++. When using autoclose, the cursor gets stuck inside, which is good until I've finished typing the parameters. How do I get the caret to jump outside of the currently nested autoclosed element? Regardless of it being (), {}, [], "", '', ? CTRL+B does does something similar, but it goes to the inside of the left bracket first, and then to the outside of the right bracket, which is where I want to be. This only works for brackets though, not tags and qoutations Hitting CTRL+B twice is cumbersome and manually hitting "right arrow" requires too much hand motion while coding. And finally, is there anyway I can map this to "SHIFT+Space"?

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  • Printing python tkinter output

    - by Eric
    I am trying to print the contents of a python tkinter canvas. I have tried using the postscript method of canvas to create a postscript file, but I get a blank page. I know this is because I have embedded widgets, and these do not get rendered by the postscript method. Before I rewrite my program to create a more printer-friendly layout, can someone suggest a way to approach this problem? All of the programming books I have ever read approach the problem of sending output to a printer with a bit of hand-waving, something along the lines of: "It's a difficult problem that depends on interacting with the operating system." I also have a hard time finding resources about this because of all the pages related to printing to the screen. I am using Python 2.6, on Ubuntu 9.04.

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  • Input Sanitation Best Practices

    - by Adam Driscoll
    Our team has recently been working on a logic and data layer for our database. We were not approved to utilize Entity or Linq to SQL for the data layer. It was primarily built by hand. A lot of the SQL is auto generated. An obvious down fall of this is the need to sanitize inputs prior to retrieval and insertion. What are the best methods for doing this? Searching for terms like insert, delete, etc seems like a poor way to accomplish this. Is there a better alternative?

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  • Help need to convert this code to C#

    - by Raj Aththanayake
    I 'm not familiar with VB.NET at all. I need to convert this function to C#. Can anyone please give me a hand? Public Function GetAppGUID(ByVal sectionId As String) As String Dim hexString As String = Nothing Dim i As Integer Dim guidlen As Integer guidlen = 16 If sectionId.Length < guidlen Then sectionId = sectionId & New String(" ".Chars(0), guidlen - sectionId.Length) End If For i = 1 To guidlen hexString = hexString & Hex(Asc(Mid(sectionId, i, 1))) Next GetAppGUID = hexString End Function

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  • ActiveRecord, has_many, polymorphic and STI

    - by leomayleomay
    I've came into a problem while working with AR and polymorphic, here's the description, class Base < ActiveRecord::Base; end class Subscription < Base set_table_name :subscriptions has_many :posts, :as => :subscriptable end class Post < ActiveRecord::Base belongs_to :subscriptable, :polymorphic => true end in the console, >> s = Subscription.create(:name => 'test') >> s.posts.create(:name => 'foo', :body => 'bar') and it created a Post like: #<Post id: 1, name: "foo", body: "bar", subscriptable_type: "Base", subscriptable_id: 1, created_at: "2010-05-10 12:30:10", updated_at: "2010-05-10 12:30:10"> the subscriptable_type is Base but Subscription, anybody can give me a hand on this?

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  • Creating readable html with django templates

    - by rileymat
    When using Django for html templating how do I create good html markup formatting. I am trying to make use of content blocks. But the content blocks show up at different levels of indentation in different templates. How do I get the content blocks to show indented like it would be if someone was to hand write the html. I am having the same problem with newlines; I can smash all the blocks together in the template. At that point the html looks better, but the templates are unmaintainable. I guess the question is how to you create pretty html markup with the django templating system?

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  • Do preconditions ALWAYS have to be checked?

    - by Pin
    These days I'm used to checking every single precondition for every function since I got the habit from an OS programming course back at uni. On the other hand, at the software engineering course we were taught that a common precondition should only be checked once, so for example, if a function is delegating to another function, the first function should check them but checking them again in the second one is redundant. I do see the redundancy point, but I certainly feel it's safer to always check them, plus you don't have to keep track of where they were checked previously. What's the best practice here?

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  • jQuery UI dialog positioning

    - by Wickethewok
    I am trying to use the jQuery dialog UI library in order to position a dialog next to some text when it is hovered over. The jQuery dialog takes a position parameter which is measured from the top left corner of the current viewport (in other words, [0, 0] will always put it in the upper left hand corner of your browser window, regardless of where you are currently scrolled to). However, the only way I know to retrieve the location is of the element relative to the ENTIRE page. The following is what I have currently. position.top is calculated to be something like 1200 or so, which puts the dialog well below the rest of the content on the page. $(".mytext").mouseover(function() { position = $(this).position(); $("#dialog").dialog('option', 'position', [position.top, position.left]); } How can I find the correct position? Thanks!

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  • Log On As A Service Permission getting removed

    - by VicF
    We have PC's that are in a domain that run a windows service on startup. They continually are having the Log On As A Service permission removed for the domain account that is running the service. So when the PC restarts the service won't run. We can re-add the permission by hand to the Group Policy on the machine or retype the password on the service (which grants the permission) and it runs fine for a day or so. What could be removing it? Could it be a Default Policy that does not have this domain account being applied to the PCs thus removing the Log On As A Service permission?

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  • What is your most obfuscated JavaScript example (5 lines maximum)?

    - by snowlord
    JavaScript is known as a language with many weird features. This probably makes it a good language to write extremely obfuscated and hard to understand code in (in the style of The International Obfuscated C Code Contest). What would be your best example of obfuscated JavaScript code (5 lines maximum)? I am thinking that it should be very hard to understand, but also have an element of style or humor in it. And for clarity: using obfuscation tools is not the point, of course. Hand crafting only!

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  • Automatically Host User Domains in Rails/Apache

    - by Steve F
    Hi, I'm currently developing a user facing web application that gives each new user their own subdomain on the site, which is fine (using subdomain_fu), but is there a way to let a user map their own domain to this subdomain? I know how to do this manually through SSH-ing into the server and editing the Apache Vhosts file by hand, but is there a way to do this automatically so that a user simply enters their domain into a box on the site (obviously they'd have to change their own DNS elsewhere)? I'm using Ruby 1.8 and Rails 2.3.3 on top of Apache. Essentially letting; http://user.application.com/article-1 be accessed from http://userdomain.com/article-1 Thanks for any help!

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  • Getting all selected checkboxes in an array

    - by Click Upvote
    So I have these checkboxes: <input type="checkbox" name="type" value="4" /> <input type="checkbox" name="type" value="3" /> <input type="checkbox" name="type" value="1" /> <input type="checkbox" name="type" value="5" /> And so on. There are about 6 of them and are hand-coded (i.e not fetched from a db) so they are likely to remain the same for a while. My question is how I can get them all in an array (in javascript), so I can use them while making an AJAX $.post request using Jquery. Any thoughts? Edit: I would only want the selected checkboxes to be added to the array

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  • Rails associations of user/post/comment

    - by garthcn
    Hi, I'm trying to create an app like a blog, with 3 models: user, post and comment. As expected, a comment belongs to both a user and a post. I used the following associations: User.rb has_many :comments has_many :posts Post.rb has_many :comments belongs_to :user Comment.rb belongs_to :user belongs_to :post And I tried to create comments using: @user.comments.create However, this will relate the comment with user, but not with post. I want the comment to be associated wit BOTH user and post. Is there a way to do so? Or did I use the wrong associations? I think it might be a bad practice to set the user_id or post_id by hand, so both ids are not in attr_accessible. I'm not sure if it is correct. Thank you!

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  • C++ - Efficient way to iterate over the contents of a vector?

    - by Francisco P.
    Hello, everyone! I am implementing a text-based version of Scrabble for a college project. I have a vector containing around 400K strings (my dictionary), and, at some point in every turn, I'm going to have to check if any word in the dictionary can be formed with the pieces in the player's hand. My only solution to this is iterating through the string, one by one, and using a sub-routine I have to check if the string in question can be formed from the player's pieces. I'll implement a quickfail checking if the user has any vowels, but it'll still be woefully inefficient. Any suggestions? Thanks for your time!

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  • Normalized Device Coordinates to window coordinates

    - by okoman
    I just read some stuff about the theory behind 3d graphics. As I understand it, normalized device coordinates (NDC) are coordinates that describe a point in the interval from -1 to 1 on both the horizontal and vertical axis. On the other hand window coordinates describe a point somewhere between (0,0) and (width,height) of the window. So my formula to convert a point from the NDC coordinate system to the window system would be xwin = width + xndc * 0.5 * width ywin = height + ynfv * 0.5 * height The problem now is that in the OpenGL documentation for glViewport there is an other formula: xwin = ( xndc + 1 ) * width * 0.5 + x ywin = ( yndc + 1 ) * height * 0.5 + y Now I'm wondering what I am getting wrong. Especially I'm wondering what the additional "x" and "y" mean. Hope the question isn't too "not programming related", but I thought somehow it is related to graphics programming.

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  • What is a Custom Class?

    - by John Saunders
    Many questions here on SO ask about custom classes. I, on the other hand, have no idea what they're talking about. "Custom class" seems to mean the same thing I mean when I say "class". What did I miss, back in the '80s, that keeps me from understanding? I know that it's possible to purchase a packaged system - for Accounting, ERP, or something like that. You can then customize it, or add "custom code" to make the package do things that are specific to your business. But that doesn't describe the process used in writing a .NET program. In this case, the entire purpose of the .NET Framework is to allow us to write our own code. There is nothing useful out of the box.

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  • ANy way to fix the position of image

    - by Mirage
    I have an image on the left hand side and text on right side. Like two column layout. I want that when i scroll the text then the image should stay at center of page. I tried using position:fixed But then the problem , sometimes when i resize the IE window to small size then the image stay at same position and it comes out of the main content area when i scroll down. I want that image should scroll but should stay within the content area . It should not move outsid ethe main content aqrea

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  • Call a non member funcion on an instance before is constructed.

    - by Tom
    Hi everyone. I'm writing a class, and this doubt came up. Is this undef. behaviour? On the other hand, I'm not sure its recommended, or if its a good practice. Is it one if I ensure no exceptions to be thrown in the init function? //c.h class C{ float vx,vy; friend void init(C& c); public: C(); ~C(); }; //c.cpp C::C() { init(*this); } void init(C& c) //throws() to ensure no exceptions ? { c.vx = 0; c.vy = 0; } Thanks in advance

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