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  • How do I perform this MutliArray setup in Java?

    - by Andy Barlow
    I come from a PHP background and I'm just getting my teeth into some Java. I was wondering how I could implement the following in Java as simply as possible, just echoing the results to a terminal via the usual "System.out.print()" method. <?php $Results[0]['title'] = "No Country for Old Men"; $Results[0]['run_time'] = "122 mins"; $Results[0]['cert'] = "15"; $Results[1]['title'] = "Old School"; $Results[1]['run_time'] = "88 mins"; $Results[1]['cert'] = "18"; // Will basically show the above in order. foreach($Results as value) { echo $Results[$value]['title']; echo $Results[$value]['run_time']; echo $Results[$value]['cert']; } // Lets add some more as I need to do this in Java too $Results[2]['title'] = "Saving Private Ryan"; $Results[2]['run_time'] = "153 mins"; $Results[2]['cert'] = "15"; // Lets remove the first one as an example of another need $Results[0] = null; ?> I hear there are "list iterators" or something that are really good for rolling through data like this. Perhaps it could be implemented with that? A fully working .java file would be most handy in this instance, including how to add and remove items from the array like the above. P.S. I do plan on using this for an Android App in the distant future, so, hopefully it should all work on Android fine too, although, I imagine this sort of thing works on anything Java related :).

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  • Can I join two tables whereby the joined table is sorted by a certain column?

    - by Ferdy
    I'm not much of a database guru so I need some help on a query I'm working on. In my photo community project I want to richly visualize tags by not only showing the tag name and counter (# of images inside them), I also want to show a thumb of the most popular image inside the tag (most karma). The table setup is as follow: Image table holds basic image metadata, important is the karma field Imagefile table holds multiple entries per image, one for each format Tag table holds tag definitions Tag_map table maps tags to images In my usual trial and error query authoring I have come this far: SELECT * FROM (SELECT tag.name, tag.id, COUNT(tag_map.tag_id) as cnt FROM tag INNER JOIN tag_map ON (tag.id = tag_map.tag_id) INNER JOIN image ON tag_map.image_id = image.id INNER JOIN imagefile on image.id = imagefile.image_id WHERE imagefile.type = 'smallthumb' GROUP BY tag.name ORDER BY cnt DESC) as T1 WHERE cnt > 0 ORDER BY cnt DESC [column clause of inner query snipped for the sake of simplicity] This query gives me somewhat what I need. The outer query makes sure that only tags are returned for which there is at least 1 image. The inner query returns the tag details, such as its name, count (# of images) and the thumb. In addition, I can sort the inner query as I want (by most images, alphabetically, most recent, etc) So far so good. The problem however is that this query does not match the most popular image (most karma) of the tag, it seems to always take the most recent one in the tag. How can I make sure that the most popular image is matched with the tag?

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  • how to release object from thid party dll?

    - by Mohamed
    hi all, i'm developing a program to convert RTF to html i'm using the DLLs found here http://www.codeproject.com/KB/recipes/RtfConverter.aspx?fid=1458864&df=90&mpp=25&noise=3&sort=Position&view=Quick&select=3427424&fr=1#xx0xx this dll saves a jpg file from html to a specific folder, when i run the program, it cinverts the rtf for the first time and saves the images to the folder perfectly but when i try to convert it again i hace this error "error a generic error occured in GDI+" i think this dll use SaveImage method and to avoid this you must release the Image object you created but i can't modify the DLL, is there is any way to release the object i've created from this dll? this is my code RtfVisualImageAdapter imageAdapter = new RtfVisualImageAdapter( @Application.StartupPath + "\\Program Data\\temp\\{0}{1}", System.Drawing.Imaging.ImageFormat.Jpeg); RtfImageConvertSettings imageConvertSettings = new RtfImageConvertSettings(imageAdapter); RtfImageConverter imageConverter = new RtfImageConverter(imageConvertSettings); try { IRtfDocument rtfDocument = RtfInterpreterTool.BuildDoc( ConversionText, imageConverter); RtfHtmlConverter htmlConverter = new RtfHtmlConverter(rtfDocument); htmlConverter.Settings.ConvertVisualHyperlinks = true; htmlConverter.Settings.UseNonBreakingSpaces = true; this.richTextBoxPrintCtrl2.Text = htmlConverter.Convert(); } catch (Exception exception) { MessageBox.Show(this, "Error " + exception.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error); }

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  • C# IE Proxy Detection not working from a Windows Service

    - by mytwocents
    This is very odd. I've written a windows form tool in C# to return the default IE proxy. It works (See code snippets below). I've created a service to return the proxy using the same code, it works when I step into the debugger, BUT it doesn't work when the service is running as binary code. This must be some sort of permissions or context thing that I cannot recreate. Further, if I call the tool from the windows service, it still doesn't return the proxy information.... this seems isolated to the service somehow. I don't see any permission errors in the events log, it's as if a service has a totally different context than a regular windows form exe. I've tride both: WebRequest.GetSystemWebProxy() and Uri requestUri = new Uri(urlOfDomain); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri); IWebProxy proxy = request.Proxy; if (!proxy.IsBypassed(requestUri)){ Uri uri2 = proxy.GetProxy(request.RequestUri); } Thanks for any help!

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  • Using Everyauth/Express and Multiple Configurations?

    - by Zane Claes
    I'm successfully using Node.js + Express + Everyauth ( https://github.com/abelmartin/Express-And-Everyauth/blob/master/app.js ) to login to Facebook, Twitter, etc. from my application. The problem I'm trying to wrap my head around is that Everyauth seems to be "configure and forget." I set up a single everyauth object and configure it to act as middleware for express, and then forget about it. For example, if I want to create a mobile Facebook login I do: var app = express.createServer(); everyauth.facebook .appId('AAAA') .appSecret('BBBB') .entryPath('/login/facebook') .callbackPath('/callback/facebook') .mobile(true); // mobile! app.use(everyauth.middleware()); everyauth.helpExpress(app); app.listen(8000); Here's the problem: Both mobile and non-mobile clients will connect to my server, and I don't know which is connecting until the connection is made. Even worse, I need to support multiple Facebook app IDs (and, again, I don't know which one I will want to use until the client connects and I partially parse the input). Because everyauth is a singleton which in configured once, I cannot see how to make these changes to the configuration based upon the request that is made. What it seems like is that I need to create some sort of middleware which acts before the everyauth middleware to configure the everyauth object, such that everyauth subsequently uses the correct appId/appSecret/mobile parameters. I have no clue how to go about this... Suggestions? Here's the best idea I have so far, though it seems terrible: Create an everyauth object for every possible configuration using a different entryPath for each...

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  • .htaccess Redirect Loop, adding multiple .php extensions

    - by Ryan Smith
    I have sort of a small parent/teacher social network set up for my school. I use my .htaccess file to make the links to teacher profiles cleaner and to add a trailing slash to all urls. I get this problem when going to /teachers/teacher-name/ the link (sometimes) redirects to /teachers/teacher-name.php.php.php.php.php.php.php.php... Below is my .htaccess file. Sometimes if I clear my browser cache in Chrome it temporarily fixes it. I can't exactly wright .htaccess syntax, but I'm pretty familiar with it. Any suggestions are appreciated! RewriteEngine on RewriteBase / #remove php ext RewriteEngine on RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME}\.php -f RewriteRule ^([^/]+)/$ $1.php RewriteRule ^([^/]+)/([^/]+)/$ $1/$2.php #force trailing slash/ RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)([^/])$ /$1$2/ [L,R=301] #other rewrites RewriteRule ^teachers/([^/\.]+)/$ /teachers/profile.php?u=$1 RewriteRule ^teachers/([^/\.]+)/posts/$ /teachers/posts.php?u=$1 RewriteRule ^teachers/([^/\.]+)/posts/([^/\.]+)/$ /teachers/post.php?u=$1&p=$2 RewriteRule ^gallery/([^/\.]+)/$ /gallery/album.php?n=$1 RewriteRule ^gallery/([^/\.]+)/slideshow/$ /gallery/slideshow.php?n=$1 RewriteRule ^gallery/([^/\.]+)/([^/\.]+)/([^/\.]+)/$ /gallery/photo.php?a=$1&p=$2&e=$3 EDIT:I have attached a screenshot of exactly what I'm talking about.

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  • Netbeans PHP Validation sees endif as a syntax error

    - by Asaf
    I have this part of code <?php for ($j=0; $j < $count; $j++): ?> <?php if(isset(votes[$j])): ?> <dt>something something</dt> <dd> <span><?php echo $result; ?>%</span> <div class="bar"> </div> </dd> <?php else: ?> <dt>info</dt> <dd> <span>0</span> <div class="bar"> <div style="width: 0px"></div> </div> </dd> <?php endif; ?> <?php endfor; ?> now Netbeans insists that on the endif line (near the end) there's a syntax error: Error Syntax error: expected: exit, identifier, variable, function... Is there some sort of known problem with the validation of endif on Netbeans ?

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  • CGContextDrawImage returning bad access

    - by Marcelo
    Hello guys, I've been trying to blend two UIImage for about 2 days now and I've been getting some BAD_ACCESS errors. First of all, I have two images that have the same orientation, basically I'm using the CoreGraphics to do the blending. One curious detail, everytime I modify the code, the first time I compile and run it on device, I get to do everything I want without any sort of trouble. Once I restart the application, I get error and the program shuts down. Can anyone give me a light? I tried accessing the baseImage sizes dynamically, but it gives me bad access too. Here's a snippet of how I'm doing the blending. UIGraphicsBeginImageContext(CGSizeMake(320, 480)); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextTranslateCTM(context, 0, 480); CGContextScaleCTM(context, 1.0, -1.0); CGContextDrawImage(context, rect, [baseImage CGImage]); CGContextSetBlendMode(context, kCGBlendModeOverlay); CGContextDrawImage(context, rect, [tmpImage CGImage]); [transformationView setImage:UIGraphicsGetImageFromCurrentImageContext()]; UIGraphicsEndImageContext();

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  • Is Accessing USB from web application for cross browser cross os possible at all ?

    - by Ved
    Hey Guys, I am wondering if there is anyway we can achieve this. I heard different things about Silverlight 4 , Java Script or Active X control but not seen any demo of code for any of them. Does anyone know any web component that is available or how to write one. We really like capture client's USB drive via Web and read/write data on it. This has to work for ANY Operating system in Any web browser. Thanks UPDATED What about WPF in browser mode...I read that I can host my wpf apps inside browser and sort of like smart client. Here is a great example of doing this via silverlight 4 but author mentions about possibility of accessing USB on MAC via 1) Enable executing AppleScripts. This option will let us have the same amount of control on a mac machine as we do on a windows machine. 2) Add an overload to ComAutomationFactory.CreateObject() that calls the “Tell Application” command under the scenes and gets a AppleScript object. This option would work extremely well for Office automation. For any other operating system feature, you’ll have to code OS access twice.  I did not quite understand it. Has any tried this ?

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  • How are developers using source control, I am trying to find the most efficient way to do source con

    - by RJ
    I work in a group of 4 .Net developers. We rarely work on the same project at the same time but it does happen from time to time.We use TFS for source control. My most recent example is a project I just placed into production last night that included 2 WCF services and a web application front end. I worked out of a branch called "prod" because the application is brand new and has never seen the light of day. Now that the project is live, I need to branch off the prod branch for features, bugs, etc... So what is the best way to do this? Do I simple create a new branch and sort of archive the old branch and never use it again? Do I branch off and then merge my branch changes back into the prod branch when I want to deploy to production? And what about the file and assembly version. They are currently at 1.0.0.0. When do they change and why? If I fix a small bug, which number changes if any? If I add a feature, which number changes if any? What I am looking for is what you have found to be the best way to efficiently manage source control. Most places I have worked always seem to bang heads with the source control system in on way or another and I would just like to find out what you have found that works the best.

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  • Reporting Services - can't group by a column called "LanguageId"

    - by marc_s
    Folks, I have a really odd behavior here: I have a SQL Server 2008 Reporting Services report which gets grouped and sorted dynamically. One of the column in my data set which I display is called LanguageId and I was trying to get a grouping going by this LanguageId field. I checked, double-checked and triple-checked the data being returned - it does contain my expected values for LanguageId and everything seems fine and dandy. It just never worked - I didn't get the expected groups, I got things like a specific node actually changing its display value from one ID to another when expanding its subitems, and other really whacky stuff. I discovered that grouping and sorting by LanguageCaption works just fine. It also started working fine after I renamed LanguageId to MyLanguageId. So where on earth is this documented that LanguageId appears to be a system variable / reserved word / keyword of some sort in SQL Server Reporting Services that must be avoided at all costs?? I can't seem to find anything on that topic - even Mr. Google and Mrs. Bing came up empty so far....

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  • CasperJS Load next page in loop

    - by SquiresSquire
    I've been working on a script which collates the scores for a list of user from a website. One problem is though, I'm trying to load the next page in the while loop, but the function is not being loaded... this.thenOpen("http://www.url.com?ul=" + currentName + "&sortdir=desc&sort=lastfound", function (id) { return function () { this.capture("Screenshots/" + json.username[id] + ".png"); if (!casper.exists(x("//*[contains(text(), 'That username does not exist in the system')]"))) { if (casper.exists(x('//*[@id="ctl00_ContentBody_ResultsPanel"]/table[2]'))){ this.thenEvaluate(tgsagc.tagNextLink); tgsagc.cacheCount = 0; tgsagc.continue = true; this.echo("------------ " + json.username[id] + " ------------"); while (tgsagc.continue) { this.then(function(){ this.evaluate(tgsagc.tagNextLink); var findDates, pageNumber; pageNumber = this.evaluate(tgsagc.pageNumber); findDates = this.evaluate(tgsagc.getFindDates); this.echo("Found " + findDates.length + " on page " + pageNumber); tgsagc.checkFinds(findDates); this.echo(tgsagc.cacheCount + " Caches for " + json.username[id]); this.echo("Continue? " + tgsagc["continue"]); return this.click("#tgsagc-link-next"); }); } leaderboard[json.username[id]] = tgsagc.cacheCount; console.log("Final Count: " + leaderboard[json.username[id]]); console.log(JSON.stringify(leaderboard)); } else { this.echo("------------ " + json.username[id] + " ------------"); this.echo("0 Caches Found"); leaderboard[json.username[id]] = 0; console.log(JSON.stringify(leaderboard)); } } else { this.echo("------------ " + json.username[id] + " ------------"); this.echo("No User found with that Username"); leaderboard[json.username[id]] = null; console.log(JSON.stringify(leaderboard)); }

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  • Want to display a 3D model on the iPhone: how to get started?

    - by JeremyReimer
    I want to display and rotate a single 3D model, preferably textured, on the iPhone. Doesn't have to zoom in and out, or have a background, or anything. I have the following: an iPhone a MacBook the iPhone SDK Blender My knowledge base: I can make 3D models in various 3D programs (I'm most comfortable with 3D Studio Max, which I once took a course on, but I've used others) General knowledge of procedural programming from years ago (QuickBasic - I'm old!) Beginner's knowledge of object-oriented programming from going through simple Java and C# tutorials (Head Start C# book and my wife's intro to OOP course that used Java) I have managed to display a 3D textured model and spin it using a tutorial in C# I got off the net (I didn't just copy and paste, I understand basically how it works) and the XNA game development library, using Visual Studio on Windows. What I do not know: Much about Objective C Anything about OpenGL or OpenGL ES, which the iPhone apparently uses Anything about XCode My main problem is that I don't know where to start! All the iPhone books I found seem to be about creating GUI applications, not OpenGL apps. I found an OpenGL book but I don't know how much, if any, applies to iPhone development. And I find the Objective C syntax somewhat confusing, with the weird nested method naming, things like "id" that don't make sense, and the scary thought that I have to do manual memory management. Where is the best place to start? I couldn't find any tutorials for this sort of thing, but maybe my Google-Fu is weak. Or maybe I should start with learning Objective C? I know of books like Aaron Hillgrass', but I've also read that they are outdated and much of the sample code doesn't work on the iPhone SDK, plus it seems geared towards the Model-View-Controller paradigm which doesn't seem that suited for 3D apps. Basically I'm confused about what my first steps should be.

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  • Binding a Value from a View-Model to the View-Model of a child User Control in Silverlight?

    - by andrej351
    Hi there, So i have a UserControl for one of my Views and have another 'child' UserControl inside that. The outer 'parent' UserControl has a Collection on its View-Model and a Grid control on it to display a list of Items. I want to place another UserControl inside this UserControl to display a form representing the details of one Item. The outer / parent UserControl's View-Model already has a property on it to hold the currently selected Item and i would like to bind this to a DependancyProperty on the inner / child UserControl. I would then like to bind that DependancyProperty to a property on the child UserControl's View-Model. I can then set the DependancyProperty once in XAML with a binding expression and have the child UserControl do all its work in its View-Model like it should. The code i have looks like this.. Parent UserControl: <UserControl x:Class="ItemsListView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" DataContext="{Binding Source={StaticResource ServiceLocator}, Path=ItemsListViewModel}"> <!-- Grid Control here... --> <ItemDetailsView Item="{Binding Source={StaticResource ServiceLocator}, Path=ItemsListViewModel.SelectedItem}" /> </UserControl> Child UserControl: <UserControl x:Class="ItemDetailsView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" DataContext="{Binding Source={StaticResource ServiceLocator}, Path=ItemDetailsViewModel}" ItemDetailsView.Item="{Binding Source={StaticResource ServiceLocator}, Path=ItemDetailsViewModel.Item, Mode=TwoWay}"> <!-- Form controls here... --> </UserControl> The selected Item is bound to the DependancyProperty fine. However from the DependancyProperty to the child View-Model does not. I've used this sort of apporach in a WPF app without problems. It appears to be a situation where there are two concurrent bindings which need to work but with the same target for two sources. Why won't the second (in the child UserControl) binding work?? Is there a way to acheive the behaviour I'm after?? Cheers.

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  • Unable to persist objects in GAE JDO

    - by Basil Dsouza
    Hello Guys, I am completely fresh to both JDO and GAE, and have been struggling to get my data layer to persist any code at all! The issues I am facing may be very simple, but I just cant seem to find any a way no matter what solution I try. Firstly the problem: (Slightly simplified, but still contains all the info necessary) My data model is as such: User: (primary key) String emailID String firstName Car: (primary key) User user (primary key) String registration String model This was the initial datamodel. I implemented a CarPK object to get a composite primary key of the User and the registration. However that ran into a variety of issues. (Which i will save for another time/question) I then changed the design as such: User: (Unchanged) Car: (primary key) String fauxPK (here fauxPK = user.getEmailID() + SEP + registration) User user String registration String model This works fine for the user, and it can insert and retrieve user objects. However when i try to insert a Car Object, i get the following error: "Cannot have a java.lang.String primary key and be a child object" Found the following helpful link about it: http://stackoverflow.com/questions/2063467/persist-list-of-objects Went to the link suggested there, that explains how to create Keys, however they keep talking about "Entity Groups" and "Entity Group Parents". But I cant seem to find any articles or sites that explain what are "Entity Group"s or an "Entity Group Parents" I could try fiddling around some more to figure out if i can store an object somehow, But I am running sort on patience and also would rather understand and implement than vice versa. So i would appreciate any docs (even if its huge) that covers all these points, and preferably has some examples that go beyond the very basic data modeling. And thanks for reading such a long post :)

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  • How to stream pdf document from servlet?

    - by Kumar
    Hi,I am creating pdf document using jasper report and i need to stream that pdf document from servlet.Can anyone help me where i did mistake.This is the code snippet which i am using in my application. ServletOutputStream servletOutputStream = response.getOutputStream(); String fileName="test.pdf"; response.setContentType("application/pdf"); response.setHeader("Content-Disposition","attachment; filename=\"" + fileName + "\""); response.setHeader("Cache-Control", "no-cache"); try { Map parameters = new HashMap(); parameters.put("SUBREPORT_DIR", JasperReportFilepath); parameters.put("TestId", testID); JasperPrint jprint=JasperFillManager.fillReport(filePath, parameters, conn); byte[] output=JasperExportManager.exportReportToPdf(jprint); System.out.println("Size====>"+output.length); servletOutputStream.write(output); servletOutputStream.flush(); servletOutputStream.close(); System.out.println("===============>Streaming perfectly"); } catch(Exception e) { System.out.println("===============>+JasperException"+e.getMessage()); } and i could not get any error message also.Everything is working fine but document is not streaming. Please help me to sort out the problem.

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  • Rails Browser Detection Methods

    - by alvincrespo
    Hey Everyone, I was wondering what methods are standard within the industry to do browser detection in Rails? Is there a gem, library or sample code somewhere that can help determine the browser and apply a class or id to the body element of the (X)HTML? Thanks, I'm just wondering what everyone uses and whether there is accepted method of doing this? I know that we can get the user.agent and parse that string, but I'm not sure if that is that is an acceptable way to do browser detection. Also, I'm not trying to debate feature detection here, I've read multiple answers for that on StackOverflow, all I'm asking for is what you guys have done. [UPDATE] So thanks to faunzy on GitHub, I've sort of understand a bit about checking the user agent in Rails, but still not sure if this is the best way to go about it in Rails 3. But here is what I've gotten so far: def users_browser user_agent = request.env['HTTP_USER_AGENT'].downcase @users_browser ||= begin if user_agent.index('msie') && !user_agent.index('opera') && !user_agent.index('webtv') 'ie'+user_agent[user_agent.index('msie')+5].chr elsif user_agent.index('gecko/') 'gecko' elsif user_agent.index('opera') 'opera' elsif user_agent.index('konqueror') 'konqueror' elsif user_agent.index('ipod') 'ipod' elsif user_agent.index('ipad') 'ipad' elsif user_agent.index('iphone') 'iphone' elsif user_agent.index('chrome/') 'chrome' elsif user_agent.index('applewebkit/') 'safari' elsif user_agent.index('googlebot/') 'googlebot' elsif user_agent.index('msnbot') 'msnbot' elsif user_agent.index('yahoo! slurp') 'yahoobot' #Everything thinks it's mozilla, so this goes last elsif user_agent.index('mozilla/') 'gecko' else 'unknown' end end return @users_browser end

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  • How is a functional programming-based javascript app laid out?

    - by user321521
    I've been working with node.js for awhile on a chat app (I know, very original, but I figured it'd be a good learning project). Underscore.js provides a lot of functional programming concepts which look interesting, so I'd like to understand how a functional program in javascript would be setup. From my understanding of functional programming (which may be wrong), the whole idea is to avoid side effects, which are basically having a function which updates another variable outside of the function so something like var external; function foo() { external = 'bar'; } foo(); would be creating a side effect, correct? So as a general rule, you want to avoid disturbing variables in the global scope. Ok, so how does that work when you're dealing with objects and what not? For example, a lot of times, I'll have a constructor and an init method that initializes the object, like so: var Foo = function(initVars) { this.init(initVars); } Foo.prototype.init = function(initVars) { this.bar1 = initVars['bar1']; this.bar2 = initVars['bar2']; //.... } var myFoo = new Foo({'bar1': '1', 'bar2': '2'}); So my init method is intentionally causing side effects, but what would be a functional way to handle the same sort of situation? Also, if anyone could point me to either a python or javascript source code of a program that tries to be as functional as possible, that would also be much appreciated. I feel like I'm close to "getting it", but I'm just not quite there. Mainly I'm interested in how functional programming works with traditional OOP classes concept (or does away with it for something different if that's the case).

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  • Java: extending Object class

    - by Fabio F.
    Hello, I'm writing (well, completing) an "extension" of Java which will help role programming. I translate my code to Java code with javacc. My compilers add to every declared class some code. Here's an example to be clearer: MyClass extends String implements ObjectWithRoles { //implements... is added /*Added by me */ public setRole(...){...} public ... /*Ends of stuff added*/ ...//myClass stuff } It adds Implements.. and the necessary methods to EVERY SINGLE CLASS you declare. Quite rough, isnt'it? It will be better if I write my methods in one class and all class extends that.. but.. if class already extends another class (just like the example)? I don't want to create a sort of wrapper that manage roles because i don't want that the programmer has to know much more than Java, few new reserved words and their use. My idea was to extends java.lang.Object.. but you can't. (right?) Other ideas? I'm new here, but I follow this site so thank you for reading and all the answers you give! (I apologize for english, I'm italian)

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  • Static code analysis for new language. Where to start?

    - by tinny
    I just been given a new assignment which looks like its going to be an interesting challenge. The customer is wanting a code style checking tool to be developed for their internal (soon to be open sourced) programming language which runs on the JVM. The language syntax is very Java like. The customer basically wants me to produce something like checkstyle. So my question is this, how would you approach this problem? Given a clean slate what recommendations would you make to the customer? I think I have 3 options Write something from scratch. Id prefer not to do this as it seems like this sort of code analysis tool problem has been solved so many times that there must be a more "framework" or "platform" orientated approach. Fork an existing code style checking tool and modify the parsing to fit with this new language etc etc Extend or plug into an existing static code analysis tool. (maybe write a plugin for Yasca?) Maybe you would like to share your experiences in this area? Thanks for reading

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  • Custom Button on top of another custom button?

    - by Jim
    I'm trying to make two custom buttons in code. One that fills the full screen with a small button on top. The problem I'm having is the larger button is triggered when the smaller button is tapped. I've tried doing exactly the same thing with IB and it works. Is there some sort of trapping/masking method that I need to use with code? I've checked the documentation and not come across anything that would suggest why this is happening. CGRect bFrame = CGRectMake(0, 0, 320, 480); UIButton *cancelButton = [[UIButton alloc] init]; cancelButton = [UIButton buttonWithType:UIButtonTypeCustom]; cancelButton.frame = bFrame; [cancelButton setBackgroundColor:[UIColor clearColor]]; [cancelButton addTarget:self action:@selector(animate:) forControlEvents:UIControlEventTouchUpInside]; UIButton *priceButton = [[UIButton alloc] init]; priceButton.center = CGPointMake(228, 98); [priceButton addTarget:self action:@selector(callNumber:) forControlEvents:UIControlEventTouchUpInside]; [priceButton setTitle:@"BUY" forState:UIControlStateNormal]; //[cancelButton addSubview:priceButton]; [self.view addSubview:cancelButton]; [self.view bringSubviewToFront:priceButton];

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  • ISBNs are used as primary key, now I want to add non-book things to the DB - should I migrate to EAN

    - by fish2000
    I built an inventory database where ISBN numbers are the primary keys for the items. This worked great for a while as the items were books. Now I want to add non-books. some of the non-books have EANs or ISSNs, some do not. It's in PostgreSQL with django apps for the frontend and JSON api, plus a few supporting python command-line tools for management. the items in question are mostly books and artist prints, some of which are self-published. What is nice about using ISBNs as primary keys is that in on top of relational integrity, you get lots of handy utilities for validating ISBNs, automatically looking up missing or additional information on the book items, etcetera, many of which I've taken advantage. some such tools are off-the-shelf (PyISBN, PyAWS etc) and some are hand-rolled -- I tried to keep all of these parts nice and decoupled, but you know how things can get. I couldn't find anything online about 'private ISBNs' or 'self-assigned ISBNs' but that's the sort of thing I was interested in doing. I doubt that's what I'll settle on, since there is already an apparent run on ISBN numbers. should I retool everything for EAN numbers, or migrate off ISBNs as primary keys in general? if anyone has any experience with working with these systems, I'd love to hear about it, your advice is most welcome.

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  • jQuery UI sortable - sorting images

    - by GSTAR
    I've just implemented the jQuery UI sortable plugin for a set of images. The markup I have is as follows: <ul id="images" class="ui-sortable"> <li id="7884029"><img src="/images/member/4698568/7884029_t.jpg" alt="" /></li> <li id="7379458"><img src="/images/member/4698568/7379458_t.jpg" alt="" /></li> <li id="1704208"><img src="/images/member/4698568/1704208_t.jpg" alt="" /></li> <li id="1750715"><img src="/images/member/4698568/1750715_t.jpg" alt="" /></li> <li id="4364912"><img src="/images/member/4698568/4364912_t.png" alt="" /></li> </ul> <script type="text/javascript"> /*<![CDATA[*/ jQuery(function($) { jQuery('#images').sortable({'delay':'100'}); }); /*]]>*/ </script> The LI id is the 'name' column in the DB table - I prefer not to display the ID column. Now my question is how do I capture the sorting? I understand this would be an AJAX request but I have no idea how to do it. I have set up a sort_order column in my DB table and I am using PHP as my scripting language. I could do with a code example. EDIT: Ideally I prefer if the sort order is applied upon moving an item, i.e. I do not want to enclose it all in a form.

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  • Qt4Dotnet on Mac OS X

    - by Tony
    Hello everyone. I'm using Qt4Dotnet project in order to port application originally written in C# on Linux and Mac. Port to Linux hasn't taken much efforts and works fine. But Mac (10.4 Tiger) is a bit more stubborn. The problem is: when I try to start my application it throws an exception. Exception states that com.trolltech.qt.QtJambi_LibraryInitializer is unable to find all necessary ibraries. QtJambi library initializer uses java.library.path VM environment variable. This variable includes current working directory. I put all necessary libraries in a working directory. When I try to run the application from MonoDevelop IDE, initializer is able to load one library, but the other libraries are 'missing': An exception was thrown by the type initializer for com.trolltech.qt.QtJambi_LibraryInitializer --- java.lang.RuntimeException: Loading library failed, progress so far: No 'qtjambi-deployment.xml' found in classpath, loading libraries via 'java.library.path' Loading library: 'libQtCore.4.dylib'... - using 'java.library.path' - ok, path was: /Users/chin/test/bin/Debug/libQtCore.4.dylib Loading library: 'libqtjambi.jnilib'... - using 'java.library.path' Both libQtCore.4.dylib and libqtjambi.jnilib are in the same directory. When I try to run it from the command prompt, the initializer is unable to load even libQtCore.4.dylib. I'm using Qt4Dotnet v4.5.0 (currently the latest) with QtJambi v4.5.2 libraries. This might be the source of the problem, but I'm neither able to compile Qt4Dotnet v4.5.2 by myself nor to find QtJambi v4.5.0 libraries. Project's page states that some sort of patch should be applied to QtJambi's source code in order to be compatible with Mono framework, but this patch hasn't been released yet. Without this patch application crashes in a strange manner (other than library seek fault). I must note that original QtJambi loads all necessary libraries perfectly, so it might be issues of IKVM compiler used to translate QtJambi into .Net library. Any suggestions how can I overcome this problem?

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  • Windows 8 Data Binding Bug - OnPropertyChanged Updates Wrong Object

    - by Andrew
    I'm experiencing some really weird behavior with data binding in Windows 8. I have a combobox set up like this: <ComboBox VerticalAlignment="Center" Margin="0,18,0,0" HorizontalAlignment="Right" Height="Auto" Width="138" Background="{StaticResource DarkBackgroundBrush}" BorderThickness="0" ItemsSource="{Binding CurrentForum.SortValues}" SelectedItem="{Binding CurrentForum.CurrentSort, Mode=TwoWay}"> <ComboBox.ItemTemplate> <DataTemplate> <TextBlock HorizontalAlignment="Right" Text="{Binding Converter={StaticResource SortValueConverter}}"/> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> Inside of a page with the DataContext set to a statically located ViewModel. When I change that ViewModel's CurrentForm attribute, who's property is implemented like this... public FormViewModel CurrentForm { get { return _currentForm; } set { _currentForm = value; if (!_currentForm.IsLoaded) { _currentSubreddit.Refresh.Execute(null); } RaisePropertyChanged("CurrentForm"); } } ... something really strange happens. The previous FormViewModel's CurrentSort property is changed to the new FormViewModel's current sort property. This happens as the RaisePropertyChanged event is called, through a managed-to-native transition, with native code invoking the setter of CurrentSort of the previous FormViewModel. Does that sound like a bug in Win8's data binding? Am I doing something wrong?

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