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  • Ocaml Pattern Matching

    - by Atticus
    Hey guys, I'm pretty new to OCaml and pattern matching, so I was having a hard time trying to figure this out. Say that I have a list of tuples. What I want to do is match a parameter with one of the tuples based on the first element in the tuple, and upon doing so, I want to return the second element of the tuple. So for example, I want to do something like this: let list = [ "a", 1; "b", 2"; "c", 3; "d", 4 ] ;; let map_left_to_right e rules = match e with | first -> second | first -> second | first -> second If I use map_left_to_right "b" list, I want to get 2 in return. I therefore want to list out all first elements in the list of rules and match the parameter with one of these elements, but I am not sure how to do so. I was thinking that I need to use either List.iter or List.for_all to do something like this. Any help would be appreciated. Thanks!

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  • How to debug and detect hang issue

    - by igor
    I am testing my application (Windows 7, WinForms, Infragistics controls, C#, .Net 3.5). I have two monitors and my application saves and restores forms' position on the first or second monitors. So I physically switched off second monitor and disabled it at Screen Resolution on the windows display settings form. I need to know it is possible for my application to restore windows positions (for those windows that were saved on the second monitor) to the first one. I switched off second monitor and press Detect to apply hardware changes. Then Windows switched OFF the first monitor for a few seconds to apply new settings. When the first monitor screen came back, my application became unresponsive. My application was launched in debug mode, so I tried to navigate via stack and threads (Visual Studio 2008), paused application, started and did not find any thing that help me to understand why my application is not responsive. Could somebody help my how to detect the source of issue.

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  • Can I specify the order of how changes happen in an single App Engine transaction ? Is it equal to t

    - by indiehacker
    If I passed a list of key ids as an argument in a transaction, would the change associated with the first key in the list happen first? And if not, how do I specify the order that I want the changes to happen in? As a concrete example, consider this code below from Google Docs Transactions--would changes to the first item in acc.key() happen first? class Accumulator(db.Model): counter = db.IntegerProperty() Docshttp://code.google.com/appengine/docs/python/datastore/transactions.html: def increment_counter(key, amount): obj = db.get(key) obj.counter += amount obj.put() q = db.GqlQuery("SELECT * FROM Accumulator") acc = q.get() db.run_in_transaction(increment_counter, acc.key(), 5)

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  • Populating a Dropdown list in PHP dynamically

    - by mouthpiec
    Hi, I have a small PHP page which contains two drop down lists I need to populate the second one according to the result selected in the first drop down list .... is this possible? In other words I need to use the value selected from the first drop down list and use it in the dB query used to populate the second drop down list (but this should be populated upon selection of the first drop down list. If this is possible any hints please? (you can assume that I am able to populate the first drop down list from the dB) thanks

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  • How to select visibility of specific worksheet at the opening of Excel using Spreadsheet XML

    - by user211607
    Hi, I am getting spreadsheet xml from a code logic (Flex Grids to spreadsheet xml). I have 3 worksheets (A, B, C) in that spreadsheet xml. I am opening this spreadsheet xml in Excel. I want to view worksheet B when I am opening the spreadhseet xml in Excel. Is there any tag/code, I need to add so that worksheet B will be visible at initial? I can add that code in code logic Thanks ... Atul

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  • What is a good platform for building a game framework targetting both web and native languages?

    - by fuzzyTew
    I would like to develop (or find, if one is already in development) a framework with support for accelerated graphics and sound built on a system flexible enough to compile to the following: native ppc/x86/x86_64/arm binaries or a language which compiles to them javascript actionscript bytecode or a language which compiles to it (actionscript 3, haxe) optionally java I imagine, for example, creating an API where I can open windows and make OpenGL-like calls and the framework maps this in a relatively efficient manner to either WebGL with a canvas object, 3d graphics in Flash, OpenGL ES 2 with EGL, or desktop OpenGL in an X11, Windows, or Cocoa window. I have so far looked into these avenues: Building the game library in haXe Pros: Targets exist for php, javascript, actionscript bytecode, c++ High level, object oriented language Cons: No support for finally{} blocks or destructors, making resource cleanup difficult C++ target does not allow room for producing highly optimized libraries -- the foreign function interface requires all primitive types be boxed in a wrapper object, as if writing bindings for a scripting language; these feel unideal for real-time graphics and audio, especially exporting low-level functions. Doesn't seem quite yet mature Using the C preprocessor to create a translator, writing programs entirely with macros Pros: CPP is widespread and simple to use Cons: This is an arduous task and probably the wrong tool for the job CPP implementations differ widely in support for features (e.g. xcode cpp has no variadic macros despite claiming C99 compliance) There is little-to-no room for optimization in this route Using llvm's support for multiple backends to target c/c++ to web languages Pros: Can code in c/c++ LLVM is a very mature highly optimizing compiler performing e.g. global inlining Targets exist for actionscript (alchemy) and javascript (emscripten) Cons: Actionscript target is closed source, unmaintained, and buggy. Javascript targets do not use features of HTML5 for appropriate optimization (e.g. linear memory with typed arrays) and are immature An LLVM target must convert from low-level bytecode, so high-level constructs are lost and bloated unreadable code is created from translating individual instructions, which may be more difficult for an unprepared JIT to optimize. "jump" instructions cause problems for languages with no "goto" statements. Using libclang to write a translator from C/C++ to web languages Pros: A beautiful parsing library providing easy access to the code structure Can code in C/C++ Has sponsored developer effort from Apple Cons: Incomplete; current feature set targets IDEs. Basic operators are unexposed and must be manually parsed from the returned AST element to be identified. Translating code prior to compilation may forgo optimizations assumed in c/c++ such as inlining. Creating new code generators for clang to translate into web languages Pros: Can code in C/C++ as libclang Cons: There is no API; code structure is unstable A much larger job than using libclang; the innards of clang are complex Building the game library in Common Lisp Pros: Flexible, ancient, well-developed language Extensive introspection should ease writing translators Translators exist for at least javascript Cons: Unfamiliar language No standardized library functions, widely varying implementations Which of these avenues should I pursue? Do you know of any others, or any systems that might be useful? Does a general project like this exist somewhere already? Thank you for any input.

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  • posmax: like argmax but gives the position(s) of the element x for which f[x] is maximal

    - by dreeves
    Mathematica has a built-in function ArgMax for functions over infinite domains, based on the standard mathematical definition. The analog for finite domains is a handy utility function. Given a function and a list (call it the domain of the function), return the element(s) of the list that maximize the function. Here's an example of finite argmax in action: http://stackoverflow.com/questions/471029/canonicalize-nfl-team-names/472213#472213 And here's my implementation of it (along with argmin for good measure): (* argmax[f, domain] returns the element of domain for which f of that element is maximal -- breaks ties in favor of first occurrence. *) SetAttributes[{argmax, argmin}, HoldFirst]; argmax[f_, dom_List] := Fold[If[f[#1]>=f[#2], #1, #2]&, First[dom], Rest[dom]] argmin[f_, dom_List] := argmax[-f[#]&, dom] First, is that the most efficient way to implement argmax? What if you want the list of all maximal elements instead of just the first one? Second, how about the related function posmax that, instead of returning the maximal element(s), returns the position(s) of the maximal elements?

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  • jQuery fadeIn() not working in IE

    - by Rob Bennet
    [js] $(document).ready(function() { //Default Action $(".tab_content").hide(); //Hide all content $("ul.tabs li:first").addClass("active").show(); //Activate first tab $(".tab_content:first").show(); //Show first tab content //On Click Event $("ul.tabs li").click(function() { $("ul.tabs li").removeClass("active"); //Remove any "active" class $(this).addClass("active"); //Add "active" class to selected tab $(".tab_content").hide(); //Hide all tab content var activeTab = $(this).find("a").attr("href"); //Find the rel attribute value to identify the active tab + content $(activeTab).fadeIn("slow"); //Fade in the active content return false; }); }); [/js] Works in everything but IE?

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  • how to push one view to another view?

    - by MD
    In my application there are two view.First view na dsecond view. In my second view there is one time for 60 sec.When i go first view to second view then timr is start.when i back to first view thne timer is running in background.when timer is over then one popup is generated.When i click on pop up(ok button) then i want to go in second view.Acctully pop is in second view. How to solve this problem

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  • Why my events aren't registered after postback?

    - by lucian.jp
    I have a problem where I have a page with a checkbox : <asp:CheckBox runat="server" ID="chkSelectAll" OnCheckedChanged="chkSelectAll_CheckedChanged" EnableViewState="true" Text='<%# CommonFunctions.GetText(Page, "CreateTask", "chkSelectAll.text") %>' AutoPostBack="true" /> First I had the problem that when the event was raised the checkbox wasn't keeping the checked property value. This is still strange because nowhere in the application we set the EnableViewState to false and by default it should be true. Well this behavior was fixed by puting EnableViewState="true". So now, I have a checkbox that when I first load the page, wworks correctly. I check the box, the event is raised Checked property valu is good and the method is executed. Postback completes and renders the page. I check the box back to false, the event is not triggered and the page is reloaded with the previous data but the Checked Property stays at true. So after the first postback I seem to loose behavior of event and ViewState. We suspect the fact that we move dynamically the controls in the page (See answer here) But this suspicion doesn't explain why everything works perfectly after the first load and stops working after first PostBack. EDIT CODE SAMPLE I created a test project where you can experience my problem. At load if you check any checkbox both raise their respective event. After postback only the second raise both events. I seem to have a problem when I register the events after moving control.

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  • Discovering a functional algorithm from a mutable one

    - by Garrett Rowe
    This isn't necessarily a Scala question, it's a design question that has to do with avoiding mutable state, functional thinking and that sort. It just happens that I'm using Scala. Given this set of requirements: Input comes from an essentially infinite stream of random numbers between 1 and 10 Final output is either SUCCEED or FAIL There can be multiple objects 'listening' to the stream at any particular time, and they can begin listening at different times so they all may have a different concept of the 'first' number; therefore listeners to the stream need to be decoupled from the stream itself. Pseudocode: if (first number == 1) SUCCEED else if (first number >= 9) FAIL else { first = first number rest = rest of stream for each (n in rest) { if (n == 1) FAIL else if (n == first) SUCCEED else continue } } Here is a possible mutable implementation: sealed trait Result case object Fail extends Result case object Succeed extends Result case object NoResult extends Result class StreamListener { private var target: Option[Int] = None def evaluate(n: Int): Result = target match { case None => if (n == 1) Succeed else if (n >= 9) Fail else { target = Some(n) NoResult } case Some(t) => if (n == t) Succeed else if (n == 1) Fail else NoResult } } This will work but smells to me. StreamListener.evaluate is not referentially transparent. And the use of the NoResult token just doesn't feel right. It does have the advantage though of being clear and easy to use/code. Besides there has to be a functional solution to this right? I've come up with 2 other possible options: Having evaluate return a (possibly new) StreamListener, but this means I would have to make Result a subtype of StreamListener which doesn't feel right. Letting evaluate take a Stream[Int] as a parameter and letting the StreamListener be in charge of consuming as much of the Stream as it needs to determine failure or success. The problem I see with this approach is that the class that registers the listeners should query each listener after each number is generated and take appropriate action immediately upon failure or success. With this approach, I don't see how that could happen since each listener is forcing evaluation of the Stream until it completes evaluation. There is no concept here of a single number generation. Is there any standard scala/fp idiom I'm overlooking here?

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  • Java Bing Image Search

    - by Zinx
    Hi All, I have a small application in java which searches images using bing image search. The problem I am facing is that, its getting only first 20 images. May be because when we search on bing.com it populates first 20 images first and then its an infinite scrolling feature. Is there any way to search more than 20 images using bing? Cheers :)

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  • User jQuery to get nested elements from XML

    - by Dkong
    I'm spinning my wheels on this. How do I get the values from the following nested elements from the XML below (I've also put my code below)? I am after the "descShort" value and then the capital "Last" and capital "change" : <indices> <index> <code>DJI</code> <exchange>NYSE</exchange> <liveness>DELAYED</liveness> <indexDesc> <desc>Dow Jones Industrials</desc> <descAbbrev>DOW JONES</descAbbrev> <descShort>DOW JONES</descShort> <firstActive></firstActive> <lastActive></lastActive> </indexDesc> <indexQuote> <capital> <first>11144.57</first> <high>11153.79</high> <low>10973.92</low> <last>11018.66</last> <change>-125.9</change> <pctChange>-1.1%</pctChange> </capital> <gross> <first>11144.57</first> <high>11153.79</high> <low>10973.92</low> <last>11018.66</last> <change>-125.9</change> <pctChange>-1.1%</pctChange> </gross> <totalEvents>4</totalEvents> <lastChanged>16-Apr-2010 16:03:00</lastChanged> </indexQuote> </index> <index> <code>XAO</code> <exchange>ASX</exchange> <liveness>DELAYED</liveness> <indexDesc> <desc>ASX All Ordinaries</desc> <descAbbrev>All Ordinaries</descAbbrev> <descShort>ALL ORDS</descShort> <firstActive>06-Mar-1970</firstActive> <lastActive></lastActive> </indexDesc> <indexQuote> <capital> <first>5007.30</first> <high>5007.30</high> <low>4934.00</low> <last>4939.40</last> <change>-67.9</change> <pctChange>-1.4%</pctChange> </capital> <gross> <first>5007.30</first> <high>5007.30</high> <low>4934.00</low> <last>4939.40</last> <change>-67.9</change> <pctChange>-1.4%</pctChange> </gross> <totalEvents>997</totalEvents> <lastChanged>19-Apr-2010 17:02:54</lastChanged> </indexQuote> </index> $.ajax({ type: "GET", url: "stockindices.xml", dataType: "xml", success: function(xml) { $(xml).find('index').each(function(){ var self = $(this); var code = self.find('indexDesc'); $(code).find('indexDesc').each(function(){ alert(self.find('descShort').text()); }); $('<span class=\"tickerItem\"></span>').html(values[0].text()).appendTo('#marq'); }); } });

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  • Consolidating coding styles: Funcs, private method, single method classes

    - by jdoig
    Hi all, We currently have 3 devs with, some, conflicting styles and I'm looking for a way to bring peace to the kingdom... The Coders: Foo 1: Likes to use Func's & Action's inside public methods. He uses actions to alias off lengthy method calls and Func's to perform simple tasks that can be expressed in 1 or 2 lines and will be used frequently through out the code Pros: The main body of his code is succinct and very readable, often with only one or 2 public methods per class and rarely any private methods. Cons: The start of methods contain blocks of lambda rich code that other developers don't enjoy reading; and, on occasion, can contain higher order functions that other dev's REALLY don't like reading. Foo 2: Likes to create a private method for (almost) everything the public method will have to do . Pros: Public methods remain small and readable (to all developers). Cons: Private methods are numerous. With private methods that call into other private methods, that call into... etc, etc. Making code hard to navigate. Foo 3: Likes to create a public class with a, single, public method for every, non-trivial, task that needs performing, then dependency inject them into other objects. Pros: Easily testable, easy to understand (one object, one responsibility). Cons: project gets littered by classes, opening multiple class files to understand what code does makes navigation awkward. It would be great to take the best of all these techniques... Foo-1 Has really nice, readable (almost dsl-like) code... for the most part, except for all the Action and Func lambda shenanigans bulked together at the start of a method. Foo-3 Has highly testable and extensible code that just feels a bit "belt-&-braces" for some solutions and has some code-navigation niggles (constantly hitting F12 in VS and opening 5 other .cs files to find out what a single method does). And Foo-2... Well I'm not sure I like anything about the one-huge .cs file with 2 public methods and 12 private ones, except for the fact it's easier for juniors to dig into. I admit I grossly over-simplified the explanations of those coding styles; but if any one knows of any patterns, practices or diplomatic-manoeuvres that can help unite our three developers (without just telling any of them to just "stop it!") that would be great. From a feasibility standpoint : Foo-1's style meets with the most resistance due to some developers finding lambda and/or Func's hard to read. Foo-2's style meets with a less resistance as it's just so easy to fall into. Foo-3's style requires the most forward thinking and is difficult to enforce when time is short. Any ideas on some coding styles or conventions that can make this work?

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  • In-line assembly

    - by aCuria
    For the below code, if i want to convert the for loop to in-line assembly, how would it be done? (Pardon the weird code, i just made it up.) 1) This is for the x86, using visual studio 2) This is a "how to use in line assembly" question, not a "how to optimize this code" question 3) Any other example will be fine. I will think of some better example code in abit.

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  • jQuery, get table cell at specific index

    - by Jarek Waliszko
    Hello, I know that I can get first or last table cell (ex for last row) using jquery expression like below: first cell: $('#table tr:last td:first') or last cell: $('#table tr:last td:last') Can I get cell at specific index, for example index 2, using similliar expression: ex: $('#table tr:last td:[2]')... Regards.

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  • Java variables -> replace? RAM optimization

    - by poeschlorn
    Hi guys, I just wanted to know what happens behind my program when I declare and initialize a variable and later initialize it again with other values, e.g. an ArrayList or something similar. What happens in my RAM, when I say e.g. this: ArrayList<String> al = new ArrayList<String>(); ...add values, work with it and so on.... al = new ArrayList<String>(); So is my first ArrayList held in RAM or will the second ArrayList be stored on the same position where the first one has been before? Or will it just change the reference of "al"? If it is not replaced...is there a way to manually free the RAM which was occupied by the first arraylist? (without waiting for the garbage collector) Would it help to set it first =null? Nice greetings, poeschlorn

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  • Proxy Issues with Javascript Cross Domain RSS Feed Parsing

    - by Amir
    This is my Javascript function which grabs an rss feed via the proxy script and then spits out the 5 latest rss items from the feed along with a link to my stylesheet: function getWidget (feed,limit) { if (window.XMLHttpRequest) { xhttp=new XMLHttpRequest() } else { xhttp=new ActiveXObject("Microsoft.XMLHTTP") } xhttp.open("GET","http://MYSITE/proxy.php?url="+feed,false); xhttp.send(""); xmlDoc=xhttp.responseXML; var x = 1; var div = document.getElementById("div"); srdiv.innerHTML = '<link type="text/css" href="http://MYSITE/css/widget.css" rel="stylesheet" /><div id="rss-title"></div></h3><div id="items"></div><br /><br /><a href="http://MYSITE">Powered by MYSITE</a>'; document.body.appendChild(div); content=xmlDoc.getElementsByTagName("title"); thelink=xmlDoc.getElementsByTagName("link"); document.getElementByTagName("rss-title").innerHTML += content[0].childNodes[0].nodeValue; for (x=1;x<=limit;srx++) { y=x; y--; var shout = '<div class="item"><a href="'+thelink[y].childNodes[0].nodeValue+'">'+content[x].childNodes[0].nodeValue+'</a></div>'; document.getElementById("items").innerHTML += shout; } } Here is the the code from proxy.php: $session = curl_init($_GET['url']); // Open the Curl session curl_setopt($session, CURLOPT_HEADER, false); // Don't return HTTP headers curl_setopt($session, CURLOPT_RETURNTRANSFER, true); // Do return the contents of the call $xml = curl_exec($session); // Make the call header("Content-Type: text/xml"); // Set the content type appropriately echo $xml; // Spit out the xml curl_close($session); // And close the session Now when I try to load this on any domain that's not my site nothing loads. I get no JS errors, but I in the Console tab in firebug I get "407 Proxy Authentication Required" So I'm not really sure how to make this work. The goal is to be able to grab the RSS feed, parse it to grab the titles and links and spit it out into some HTML on any website on the web. I"m basically making a simple RSS widget for my site's various RSS feeds. My Javascript is wack Also, I'm really a beginner with Javascript. I know jQuery pretty well, but I wasn't able to use it in this case, because this script will be embeded on any site and I can't really rely on the jQuery library. So I was decided to write some basic Javascript relying on the default XML parsing options available. Any suggestions here would be cool. Thanks! What's with the x and y They way my site creates RSS feeds is that the first title is actually the RSS feed title. The second title is the title of the first item. The first link is the link to the first item. So when using the javascript to get the title, I had to first grab the first title (which is the RSS title) and then start with the second title that being the first title of the item. Sorry for the confusion, but I don't think this is related to my issue. Just wanted to clarify my code.

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  • Clojure: Avoiding stack overflow in Sieve of Erathosthene?

    - by nixx
    Here's my implementation of Sieve of Erathosthene in Clojure (based on SICP lesson on streams): (defn nats-from [n] (iterate inc n)) (defn divide? [p q] (zero? (rem q p))) (defn sieve [stream] (lazy-seq (cons (first stream) (sieve (remove #(divide? (first stream) %) (rest stream)))))) (def primes (sieve (nats-from 2))) Now, it's all OK when i take first 100 primes: (take 100 primes) But, if i try to take first 1000 primes, program breaks because of stack overflow. I'm wondering if is it possible to change somehow function sieve to become tail-recursive and, still, to preserve "streamnes" of algorithm? Any help???

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  • -(void)dealloc - How ? Objective - C

    - by sagar
    Please Note that - this is not similar than this question. OK. To understand my question, First of all please see both of these destructors. - (void)dealloc { [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; [super dealloc]; } - (void)dealloc { [super dealloc]; [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; } See, Both destructors have different code. In First Destructor first current class objects are released & then [super dealloc] is called. In second Desctructor first [super dealloc] is called. My question is as follows. Where should we write [super dealloc] ? first or last ? or it doesn't matter ?

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  • WP7: play MP3 using Media with phonegap/Cordova

    - by Loda
    My problem: I use the Media Class from Cordova. The MP3 file is only played once (the first time). Code: Add this code to the Cordova Starter project to reproduce my problem: var playCounter = 0; function playMP3(){ console.log("playMP3() counter " + playCounter); var my_media = new Media("app/www/test.mp3");//ressource buildAction == content my_media.play(); playCounter++; } [...] <p onclick="playMP3();">Click to Play MP3</p> VS output: [...] GapBrowser_Navigated :: /app/www/index.html 'UI Task' (Managed): Loaded 'System.ServiceModel.Web.dll' 'UI Task' (Managed): Loaded 'System.ServiceModel.dll' Log:"onDeviceReady. You should see this message in Visual Studio's output window." 'UI Task' (Managed): Loaded 'Microsoft.Xna.Framework.dll' Log:"playMP3() counter 0" 'UI Task' (Managed): Loaded 'System.SR.dll' Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 1}" A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 2}" Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 2, \"value\": 2.141}" Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 4}" Log:"playMP3() counter 1" A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll A first chance exception of type 'System.IO.IOException' occurred in mscorlib.dll A first chance exception of type 'System.IO.IsolatedStorage.IsolatedStorageException' occurred in mscorlib.dll Log:"media on status :: {\"id\": \"2de3388c-bbb6-d896-9e27-660f1402bc2a\", \"msg\": 9, \"value\": 5}" My Config: cordova-1.6.1.js Lumia 800 WP 7.5 (7.10.7740.16) WorkAround (kind of): Desactivate the app (turn off the screen) reactivate the app (turn on the screen) - you get one more shot. Any help is welcome as I am blocked on this since may days and I found no usefull information anywhere. Also, Can you tell me if this code work on your config ? . . . Update: add a demo code using a global var. Keeping the instance alive. result The test2.mp3 is played and can replay fine. the test.mp3 is not played at all. It is the first file you play that will work. Code function onDeviceReady() { document.getElementById("welcomeMsg").innerHTML += "Cordova is ready! version=" + window.device.cordova; console.log("onDeviceReady. You should see this message in Visual Studio's output window."); my_media = new Media("app/www/test.mp3");//ressource buildAction == content my_media2 = new Media("app/www/test2.mp3");//ressource buildAction == content } var playCounter = 0; var my_media = null; function playMP3(){ console.log("playMP3() counter " + playCounter); my_media.play(); playCounter++; } var my_media2 = null; function playMP32(){ console.log("playMP32() counter " + playCounter); my_media2.play(); playCounter++; } </script> [...] <p onclick="playMP3();">Click to Play MP3</p> <p onclick="playMP32();">Click to Play MP3 2</p> VS output: Log:"onDeviceReady. You should see this message in Visual Studio's output window." INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Log:"playMP32() counter 0" INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Log:"playMP32() counter 1" Log:"playMP3() counter 2" INFO: startPlayingAudio could not find mediaPlayer for b60fa266-d105-a295-a5be-fa2c6b824bc1 A first chance exception of type 'System.ArgumentException' occurred in System.Windows.dll Error: El parámetro es incorrecto. Log:"playMP32() counter 3" INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Can anybody reproduce this ? link to bug report: https://issues.apache.org/jira/browse/CB-941

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  • maven test cannot load cross-module resources/properties ?

    - by smallufo
    I have a maven mantained project with some modules . One module contains one XML file and one parsing class. Second module depends on the first module. There is a class that calls the parsing class in the first module , but maven seems cannot test the class in the second module. Maven test reports : java.lang.NullPointerException at java.util.Properties.loadFromXML(Properties.java:851) at foo.firstModule.Parser.<init>(Parser.java:92) at foo.secondModule.Program.<init>(Program.java:84) In "Parser.java" (in the first module) , it uses Properties and InputStream to read/parse an XML file : InputStream xmlStream = getClass().getResourceAsStream("Data.xml"); Properties properties = new Properties(); properties.loadFromXML(xmlStream); The "data.xml" is located in first module's resources/foo/firstModule directory , and it tests OK in the first module. It seems when testing the second module , maven cannot correctly load the Data.xml in the first module . I thought I can solve the problem by using maven-dependency-plugin:unpack to solve it . In the second module's POM file , I add these snippets : <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.1</version> <executions> <execution> <id>data-copying</id> <phase>test-compile</phase> <goals> <goal>unpack</goal> </goals> <configuration> <artifactItems> <artifactItem> <groupId>foo</groupId> <artifactId>firstModule</artifactId> <type>jar</type> <includes>foo/firstModule/Data.xml</includes> <outputDirectory>${project.build.directory}/classes</outputDirectory> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin> In this POM file , I try to unpack the first module , and copy the Data.xml to classes/foo/firstModule/ directory , and then run tests. And indeed , it is copied to the right directory , I can find the "Data.xml" file in "target/classes/foo/firstModule" directory. But maven test still complains it cannot read the File (Properties.loadFromXML() throws NPE). I don't know how to solve this problem. I tried other output directory , such as ${project.build.directory}/resources , and ${project.build.directory}/test-classes , but all in vain... Any advices now ? Thanks in advanced. Environments : Maven 2.2.1 , eclipse , m2eclipse

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  • How to specify this 'symbolic link' for the Jungo WinDriver?

    - by user252098
    Just now , I try to install the Jungo WinDriver in the Ubuntu 13.10 . But I am puzzled by the its manual : 4.2.3. Linux WinDriver Installation Instructions 4.2.3.1. Preparing the System for Installation In Linux, kernel modules must be compiled with the same header files that the kernel itself was compiled with. Since WinDriver installs kernel modules, it must compile with the header files of the Linux kernel during the installation process. Therefore, before you install WinDriver for Linux, verify that the Linux source code and the file version.h are installed on your machine: Install the Linux kernel source code: If you have yet to install Linux, install it, including the kernel source code, by following the instructions for your Linux distribution. If Linux is already installed on your machine, check whether the Linux source code was installed. You can do this by looking for 'linux' in the /usr/src directory. If the source code is not installed, either install it, or reinstall Linux with the source code, by following the instructions for your Linux distribution. Install version.h: The file version.h is created when you first compile the Linux kernel source code. Some distributions provide a compiled kernel without the file version.h. Look under /usr/src/linux/include/linux to see whether you have this file. If you do not, follow these steps: Become super user: $ su Change directory to the Linux source directory: cd /usr/src/linux Type: make xconfig Save the configuration by choosing Save and Exit. Type: make dep Exit super user mode: exit To run GUI WinDriver applications (e.g., DriverWizard [5]; Debug Monitor [7.2]) you must also have version 5.0 of the libstdc++ library — libstdc++.so.5. If you do not have this file, install it from the relevant RPM in your Linux distribution (e.g., compat-libstdc++). Before proceeding with the installation, you must also make sure that you have a linux symbolic link. If you do not, create one by typing /usr/src$ ln -s 'target kernel'/linux For example, for the Linux 2.4 kernel type /usr/src$ ln -s linux-2.4/ linux ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I can't understand how to specify these two parameters in my Ubuntu .

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  • Getting JSON data in PHP

    - by domagoj412
    I have a JSON data like this: { "hello": { "first":"firstvalue", "second":"secondvalue" }, "hello2": { "first2":"firstvalue2", "second2":"secondvalue2" } } I know how to retrieve data from object "first" (firstvalue) and second (secondvalue) but I would like to loop trough this object and as a result get values: "hello" and "hello2"... This is my PHP code: <?php $jsonData='{"hello":{"first":"firstvalue","second":"secondvalue"},""hello2":{"first2":"firstvalue2","second2":"secondvalue2"}}'; $jsonData=stripslashes($jsonData); $obj = json_decode($jsonData); echo $obj->{"hello"}->{"first"}; //result: "firstvalue" ?> Can it be done?

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