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• Alternatives to Java bytecode instrumentation

  - by Rafael Regis

  I'm starting a project that will have to instrument java applications for coverage purposes (definition-usage of variables, etc). It has to add trace statements and some logic to the application and maybe remove statements. I have searched for ways of instrument Java code and what I always find is about bytecode instrumentation. My question is: It's the only way to instrument Java applications? There is any other way to do that? What are the advantages of bytecode instrumentation over the others? I'll probably use the bytecode solution, but I want to know what are the problems with the other approaches (if any) to decide precisely. Thanks!

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• Any way to access the type of a Scala Option declaration at runtime using reflection?

  - by Graham Lea

  So, I have a Scala class that looks like this: class TestClass { var value: Option[Int] = None } and I'm tackling a problem where I have a String value and I want to coerce it into that Option[Int] at runtime using reflection. To do so, I need to know that the field is an Option and that the type parameter of the Option is Int. What are my options for figuring out that the type of 'value' is Option[Int] at runtime (i.e. using reflection)? I have seen similar problems solved by annotating the field, e.g. @OptionType(Int.class). I'd prefer a solution that didn't require annotations on the reflection target if possible.

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• In App Purchase no valid Product IDs

  - by david

  I'm trying to get In App Purchase with my existing iPad App working. I'm stuck retrieving the Product Information from App Store: - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response The SKProductsResponse only contains invalid Product IDs. I tried every potential solution I found here or on the net: my App ID has In App enabled I generated a new provisioning profile and installed it on my device I restarted the device my App ID is the same as in my Info.plist (it's in the Store since weeks) I added In App Purchases for the App with "cleared for sale" checked I added Screenshots to my In App Purchases I tried different naming schemes for the Product ID I made triple checked that I pass the correct Product ID to the SKProductsRequest I'm passing a NSSet to the SKProductsRequest instead of a MutableSet I updated my App with the upcoming version containing in App purchase and submitted it for Review I approved one of my In App Purchases, just to see if that helps I waited more than 24 hours All of these actions brought me nothing but invalid Product IDs. I hope someone can point me into the right direction, because I'm running out of ideas.

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• Remove items from SWT tables

  - by Dima

  This is more of an answer I'd like to share for the problem I was chasing for some time in RCP application using large SWT tables. The problem is the performance of SWT Table.remove(int start, int end) method. It gives really bad performance - about 50msec per 100 items on my Windows XP. But the real show stopper was on Vista and Windows 7, where deleting 100 items would take up to 5 seconds! Looking into the source code of the Table shows that there are huge amount of windowing events flying around in this call.. That brings the windowing system to its knees. The solution was to hide the damn thing during this call: table.setVisible(false); table.remove(from, to); table.setVisible(true); That does wonders - deleting 500 items on both XP & Windows7 takes ~15msec, which is just an overhead for printing out time stamps I used. nice :)

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• Facebook Api - Local development, Testserver, Liveserver ... How?

  - by Thijs Kaspers

  I'm working on a new website that uses the Facebook API for users to login and several implementations of the graph Api. My workflow usually is: Development on localhost Development using MAMP/XAMPP or similar software Push to server - testing domain A team of people can test the changes for a few days to see if everything works as planned. Push to server - live domain Changes are live for public Facebook uses the site URL in the appsettings and for security reasons, they will only redirect to that url... Problem is.. I have localhost and 2 different domains. How can I make this work? Ofcourse I could edit the hostsfile, but that only fixes it for localhost.. Still no solution for the testdomain. Please tell me this is somehow possible! I'm getting more and more depressed with the Facebook API.

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• how to format the data inside the DataGridTemplateColumn in datagrid

  - by prince23

  hi, this is my xaml code where i have 2 fields placed under one template column. now i am getting the format the output like this so that i can specify the space betweeen these 2 columns Color red image1 green image2 green image2 white image6 so that output looks good. How can i define space between them so that it looks like the above one right now thw output is like this color Redimage1 greenimage2 greenimage2 whiteimage6 <sdk:DataGridTemplateColumn Header="Color" Width="80"> <sdk:DataGridTemplateColumn.CellTemplate> <DataTemplate> <StackPanel Loaded ="StackPanel_Loaded" Orientation="Horizontal" Background="Transparent"> <TextBlock Text="{Binding Color}" TextWrapping="NoWrap" HorizontalAlignment="Center" Foreground="Blue"></TextBlock> <Image x:Name="imgTargetScore" Source ="{Binding ColorImage}" Width="20" Height="20" Stretch ="Fill"/> </StackPanel> </DataTemplate> </sdk:DataGridTemplateColumn.CellTemplate> </sdk:DataGridTemplateColumn> loking forward for an solution thanks in advance prince

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• Qt: Styling QTabWidget

  - by Martin

  I'm using Qt and I have a QTabWidget setup in the Qt Designer Editor, you can see it in picture 1. As you can see after Tab4 there is an empty space all the way to the right edge, in someway I need to fill that space with a color, like in picture 2. Or another solution would be that the tabs float out to cover the whole screen. I use the following stylesheet right now: QTabWidget::tab-bar { } QTabBar::tab { background: gray; color: white; padding: 10px; } QTabBar::tab:selected { background: lightgray; } Is there a way to set the background color of the QTabBar using Qt stylesheets? Or can I get the tabs floating out to the edge using Qt stylesheets? Thanks!

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• Best practice -- Content Tracking Remote Data (cURL, file_get_contents, cron, et. al)?

  - by user322787

  I am attempting to build a script that will log data that changes every 1 second. The initial thought was "Just run a php file that does a cURL every second from cron" -- but I have a very strong feeling that this isn't the right way to go about it. Here are my specifications: There are currently 10 sites I need to gather data from and log to a database -- this number will invariably increase over time, so the solution needs to be scalable. Each site has data that it spits out to a URL every second, but only keeps 10 lines on the page, and they can sometimes spit out up to 10 lines each time, so I need to pick up that data every second to ensure I get all the data. As I will also be writing this data to my own DB, there's going to be I/O every second of every day for a considerably long time. Barring magic, what is the most efficient way to achieve this? it might help to know that the data that I am getting every second is very small, under 500bytes.

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• Sympy python circumference

  - by Mattia Villani

  I need to display a circumference. In order to do that I thought I could calculata for a lot of x the two values of y, so I did: import sympy as sy from sympy.abc import x,y f = x**2 + y**2 - 1 a = x - 0.5 sy.solve([f,a],[x,y]) and this is what I get: Traceback (most recent call last): File "<input>", line 1, in <module> File "/usr/lib/python2.7/dist-packages/sympy/solvers/solvers.py", line 484, in solve solution = _solve(f, *symbols, **flags) File "/usr/lib/python2.7/dist-packages/sympy/solvers/solvers.py", line 749, in _solve result = solve_poly_system(polys) File "/usr/lib/python2.7/dist-packages/sympy/solvers/polysys.py", line 40, in solve_poly_system return solve_biquadratic(f, g, opt) File "/usr/lib/python2.7/dist-packages/sympy/solvers/polysys.py", line 48, in solve_biquadratic G = groebner([f, g]) File "/usr/lib/python2.7/dist-packages/sympy/polys/polytools.py", line 5308, i n groebner raise DomainError("can't compute a Groebner basis over %s" % domain) DomainError: can't compute a Groebner basis over RR How can I calculate the y's values ?

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• How to deploy a c# application while including third party DLL's?

  - by Willem

  To start with, I don't know much of deployment. I hope my question makes sense. I need to install/deploy a c# application to a number of desktops. It needs a third-party DLL : a c++ library ("lpsolve55.dll", for those interested, it is a free MIP/LP solver, see lpsolve.sourceforge.net/5.5/). I use it in my code in the following way: [DllImport("lpsolve55.dll", SetLastError = true)] public static extern bool add_column(int lp, double[] column); For testing, I have manually copied the .dll file to to project\bin\release, it works fine. My question: I will need an installer for the application, which will manage that the .dll will install as well. I am considering clickonce deployment since I am using visual studio express (2008), but any not too expensive solution will do. What would you advice?

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• Downloading large files with AFNetworking

  - by goodfella

  I'm trying to implement downloading of a large file and show to user current progress, but block in: -[AFURLConnectionOperation setDownloadProgressBlock:] returns incorrect bytesRead and totalBytesRead values (they are smaller than they should be). For example: If I have a 90MB file and when it downloads completely, latest block invocation in setDownloadProgressBlock: gives me totalBytesRead value about 30MB. On other side, if file is 2MB large, latest block invocation gives correct totalBytesRead 2MB value. AFNetworking is updated to the latest version from github. If AFNetworking can't do it correctly, what solution can I use? Edit: I've determined that even if file is not downloaded completely (and this happens every time with relatively big file) AFNetworking calls success block in: -[AFHTTPRequestOperation setCompletionBlockWithSuccess:failure] I asked a similar question here about this situation, but didn't get any answers. I can check in code downloaded and real file sizes, but AFNetworking has no API for continuation of partial download.

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• Passing URIs as URL arguments in Drupal

  - by wynz

  I'm running into problems trying to pass absolute URIs as parameters with clean URLs enabled. I've got hook_menu() set up like this: function mymodule_menu() { return array( 'page/%' = array( 'title' = 'DBpedia Display Test', 'page callback' = 'mymodule_dbpedia_display', 'page arguments' = array(1), ), ); } and in the page callback: function mymodule_dbpedia_display($uri) { // Make an HTTP request for this URI // and then render some things return $output; } What I'm hoping to do is somehow pass full URIs (e.g. "http://dbpedia.org/resource/Coffee") to my page callback. I've tried a few things and nothing's worked so far... http://mysite.com/page/http%3A%2F%2Fdbpedia.org%2Fresource%2FCoffee Completely breaks Drupal's rewriting http://mysite.com/page/?uri=http%3A%2F%2Fdbpedia.org%2Fresource%2FCoffee Gives a 404 http://mysite.com/page/http://dbpedia.org/resource/Coffee Returns just "http:", which makes sense I could probably use $_GET to pull out the whole query string, but I guess I'm hoping for a more 'Drupal' solution. Any suggestions?

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• Bypass using Alter Access Mappings for to Open Web from SPItemEventProperties

  - by Greg Ogle

  In the following code, // class overrides SPItemEventreceiver public override void ItemAdding(SPItemEventProperties properties) { using (var site = new SPSite(properties.SiteId)) //SiteId is integer { ... } } The following exception is thrown: System.IO.FileNotFoundException: The Web application at http://URL could not be found. Verify that you have typed the URL correctly. If the URL should be serving existing content, the system administrator may need to add a new request URL mapping to the intended application. One way to work around this is to hard-code (or configure) the URL specified in Alternate Access Mappings. Putting the correct URL in Alternate Access Mappings is ultimately the correct solution, but if possible, I need a work-around that doesn't require configuration.

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• Remove year component from NSDateFormatter style

  - by JK

  I would like to present a date in the kCFDateFormatterFullStyle, but without the year. Is there any way to remove the year component from this style? My app requires localization so practically I cannot programmatically set the format string for all locales. I have come accross a solution which removes the "y" characters from the format string returned by the built in styles. Unfortunately, this is not acceptable as the year components are not represented by "y" in some other languages like Japanese. Any suggestions to get the kCFDateFormatterFullStyle without the year would be great! Thanks.

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• How to inline compressed CSS in Rails with assets pipeline

  - by haimg

  I'm trying to inline CSS into my layout. I'm currently using = Rails.application.assets.find_asset('embedded.css').body.html_safe However, the CSS returned is not compressed. I verified what .digest_path asset file exists, and is properly compressed. I can, of course, write a helper that will check if current on-disk compressed asset file exists for a given asset, and use it. However, I think find_asset actually compiles a CSS asset each time it is called -- not good in production. I hope a cleaner solution exists for this issue.

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• Mac OSX: Passing a file from user process to kernel module.

  - by Inso Reiges

  Hello, I need to pass a link to file from a user process to the OSX kernel driver. By link i mean anything that uniquely identifies a file on the local filesystem. I need that link to do I/O on that file in kernel. The most obvious solution seems to pass a file name and use a VFS vnode lookup. However i noticed, that Apple Disk Images helper process passes a raw data array for image-path property to driver when attaching a disk image file: <2f 56 6f 6c 75 6d 65 73 2f 73 74 6f 72 61 67 65 2f 74 65 73 74 32 2e 64 6d 67> What is that diskimages-helper passes to the kernel driver? Some serialized type perhaps? If yes, what type is it and how can i use it?

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• Are QR codes guaranteed to work?

  - by Kiz

  Not sure if this will get closed as "not a real question" but I asked this on Superuser and it was closed for that very reason. We are thinking of implementing a QR code which will be sent to a number of users via an email which links through to a webpage. Now I'm aware that you can just Google 'QR codes' and there are a plethora of options that allow you to make a QR code. My question is thus; if we do go with this solution can we guarantee that it would work cross platform? I.e. on Android, iOS, Symbian etc? Once a QR code is generated will it work on ANY app on ANY platform? Thanks and apologies if this is not really a 'programming question' Thanks Kiran

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• Find and replace numbers in string with regex

  - by James

  What I'm trying to achieve is to replace the numbers in the string with a new values calculated from the (match * int). So the string input looks like: 500g Flour 14g Salt 7g Dry yeast 45ml Olive oil 309ml Water And the result should look like this: 1000g Flour 14g Salt 14g Dry yeast 90ml Olive oil 618 ml Water row["ingredients"] is a DataRow. This is where I'm at: System.Text.RegularExpressions. Regex.Replace(row["ingredients"].ToString(), @"[^/d]", Delegate(Match match) { return match * 2; }, RegexOptions.Multiline); Any solution is greatly appreciated.

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• AudioRecord doesn't work for Motorola Milestone

  - by hcpl

  I'm having this problem only on Motorola Milestone. Code: // init recorder recordInstance = new AudioRecord(MediaRecorder.AudioSource.MIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, 8000); recordInstance.startRecording(); //more code here recordInstance.stop(); The errorinformation I have (can't find more for the moment since I don't have a milestone myself for debugging): Uncaught handler: thread main exiting due to uncaught exception java.lang.IllegalStateException: stop() called on an uninitialized AudioRecord. at android.media.AudioRecord.stop(AudioRecord.java:51 6) Apparantly I'm not the only one with this problem. Some very similar threads I found (without solution): http://groups.google.com/group/android-developers/browse_thread/thread/6dd24aeb484b2e40 http://androidcommunity.com/forums/f2/problem-using-audiorecord-in-motorola-milestone-30935/ http://community.developer.motorola.com/t5/Android-App-Development-for/Problem-using-AudioRecord-on-Milestone-device/m-p/3889 http://www.fring.com/forums/showthread.php?t=16194

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• Is it possible to create a Windows shortcut using PHP?

  - by Drarok

  I'm writing a script to tidy up a bunch of media spread across my hard drives, and it works pretty well so far at home (on my Mac) as I use symlinks in a directory to give the impression that everything is organised in one location, whilst the actual data is spread across the 4 drives. Unfortunately, I have to use Windows at work, and of course there's no symlink support there until PHP 5.3 (and I assume that requires Vista as that's when the command-line tool "mklink" first appeared). As a workaround, I considered creating a shortcut, but I can't find a way of doing it. Is it possible, or is there a better solution I've not considered?

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• How to automaticly add a page number to all internal links on the HTML page?

  - by Tomasz

  In print mode, I would like to render such a links: <a href="#targetPage">link</a> like this: <a href="#targetPage">link (page 11)</a> (suppose the target page is on 11. page in print preview). It is possible to add page number using counters to the page footer with plain CSS, but could I use this in more "the way I want it" way? The solution doesn't need to be cross-browser (FF/Chrome is enough), any CSS/Javascript tricks are allowed...

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• Wordpress custom post_type templates

  - by roman

  We are currently working on a Wordpress page that reuses data from another Application. To keep things clean, but still use most wordpress features, we decided to use custom post_type settings (register_post_type) for this data. Now the Problem is, that while accessing these Posts is no problem, the Permalink's to them fail with 404's. We currently work around this issue by adding an action to the "template_redirect" hook that essentially performs a query_posts for the name and our custom types. If query_posts found something we load our custom post templates with locate_template. Although this is working, it does not look like a clean solution - can anyone here propose a better way to tackle our problems?

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• SSRS and hiding other selections once a parameter is selected

  - by KristiLee

  I am learning SSRS so this is probably an extremely easy solution. I have a bunch of reports that were rebuilt to match some old Access reports. For each report, we have to be able to run Current, Last, Next or Adhoc dates. Is there an easy way if a user selects Adhoc to then show the parameters selections for Start and End Date for the Adhoc selection? Right now, I have people who select Current and then go and put in dates. WHERE (:AGNT='--AllNoFilter--' OR AGNT =:AGNT) AND (:DateRunOption <> 'CM' OR TO_CHAR(MONTH_END_DT, 'Month YYYY') = TO_CHAR(CURRENT_DATE, 'Month YYYY')) AND (:DateRunOption <> 'LM' OR TO_CHAR(MONTH_END_DT, 'Month YYYY') = TO_CHAR(ADD_MONTHS(CURRENT_DATE, -1), 'Month YYYY')) AND (:DateRunOption <> 'AD' OR MONTH_END_DT>= :BeginDateFrom) AND (:DateRunOption <> 'AD' OR MONTH_END_DT<= :BeginDateTo) Thank you for any assistance you can provide

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• Is there a way in javascript to create a date object using year & ISO week number?

  - by Chantz

  I am trying to create a google annotated timeline viz. For that I need to input the date of the event. The only information I have is the year & the ISO week number for the event. Is there a way in Javascript to create a Date object using just the year & week number? I googled it but did not come across any feasible solution. Thanks for the help!

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• How can I add a VS 2010 .Net 4.0 build agent to TFS 2008

  - by Mark Arnott

  My company has two development teams using TFS 2008. My team would like to migrate our .Net 3.5 app to the .Net 4.0 framework, but the company is not ready to upgrade TFS to TFS 2010. Can we still use TFS 2008's team build system but with a Visual Studio 2010 solution/project structure that targets the .Net 4.0 framework? I am thinking we would need to add a new build agent to TFS 2008 that would have VS 2010 installed. But I am not finding any information on how to do this. Is this possible? Are there any articles explaining how to do this?

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