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  • Twitter4J throws exception in TwitterFactory

    - by Philipp Andre
    Hello Guys, i'm trying to access twitter via oauth. Therefore, i registered my app, downloaded Twitter4j, added the jars in my Eclipse-Project, and then tried to execute the following code: Twitter twitter = new TwitterFactory().getOAuthAuthorizedInstance("[key]","[secretKey]); RequestToken requestToken = twitter.getOAuthRequestToken(); System.out.println(requestToken.getAuthorizationURL()); But it raises the following exception: [Sat May 29 11:19:11 CEST 2010]Using class twitter4j.internal.logging.StdOutLoggerFactory as logging factory. [Sat May 29 11:19:11 CEST 2010]Use twitter4j.internal.http.alternative.HttpClientImpl as HttpClient implementation. Exception in thread "main" java.lang.AssertionError: java.lang.reflect.InvocationTargetException at twitter4j.internal.http.HttpClientFactory.getInstance(HttpClientFactory.java:71) at twitter4j.internal.http.HttpClientWrapper.<init>(HttpClientWrapper.java:59) at twitter4j.http.OAuthAuthorization.init(OAuthAuthorization.java:83) at twitter4j.http.OAuthAuthorization.<init>(OAuthAuthorization.java:74) at twitter4j.TwitterFactory.getOAuthAuthorizedInstance(TwitterFactory.java:112) at MainProgram.main(MainProgram.java:18) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at twitter4j.internal.http.HttpClientFactory.getInstance(HttpClientFactory.java:65) ... 5 more Caused by: java.lang.NoClassDefFoundError: org/apache/http/impl/client/DefaultHttpClient at twitter4j.internal.http.alternative.HttpClientImpl.<init>(HttpClientImpl.java:63) ... 10 more I currently can't figure out why ... can you please give me some suggestions? Best regards Philipp

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  • Facebook fan page canvas source?

    - by Andre
    Im trying to understand how to learn reading the source of a facebook fan page. So far, I can only get the layout displayed while viewing the source. Here is an example: If you go here: http://www.facebook.com/pages/See-oho-nieps-YothG-RRofiLe/106340746065367#!/pages/Milton-Keynes-United-Kingdom/IF-MR-BEAN-WAS-IN-AVATAR-HE-WOULD-LOOK-LIKE-THIS/302690570115 That canvas page requires you to be a fan of the page. This is done with: content here My question is, why cant I find the FB:visible code in the source of that page? I would be grateful for any guidance!

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  • How to draw a smooth/dithered gradient on a canvas in Android

    - by André
    Several answers mention to use GradientDrawable.setDither(true) to draw smooth gradients in Android. That has no effect in my code. Any idea what I have to change to get a well looking gradient in my live wallpaper? GradientDrawable gradient = new GradientDrawable(Orientation.TL_BR, colors); gradient.setGradientType(GradientDrawable.RADIAL_GRADIENT); gradient.setGradientRadius(canvas.getWidth() * 2); gradient.setDither(true);g gradient.setGradientCenter(-0.1f, -0.1f); gradient.setBounds(cb); gradient.draw(canvas);

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  • How to fill a webdynpro table binded to a BAPI initially?

    - by Philipp Andre
    Hello SAP-Gurus, im fairly new to webdynpro abap and have the following problem: I created a service returning a set of all existing customers. This function works well, if i test it in a litte program simply printing out the lines. now i created a webdynpro containing a table to display these customers. I also did the binding! AND it works, but only if an event fires the execute...function. What i need is kind of "execute initially", means that the function gets executed when the table initially loads. How can i do this? Best regards Philipp

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  • Cannot run/debug Java applications in Eclipse (JavaTimeZone issue)

    - by Andre
    I'm trying to get started with Eclipse/Java/Scala on a MacBook. The installed JDK was 1.5. The SDT plugin for Scala requires 1.6 which was included in an OS update, but I also manually installed a package from Apple to update 1.6. The problem is that I cannot run anything from Eclipse. I always get the following error: An internal error occurred during: "Launching TestFooBasicTest". Could not initialize class com.ibm.icu.impl.JavaTimeZone I also tried to use the old 1.5 version, but to no avail. What is going wrong here?

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  • Best pratice: How do I implement a list that can be rendered both server-side and client-side?

    - by André Pena
    Technologies involved: ASP.NET Web-forms Javascript (jQuery for instance) Case To make it clearer let's give the Stackoverflow authors list as an example. This list can be manipulated at client-side. I can search, page and so forth. So obviously we would need to call jQuery.ajax to retrieve the HTML of each page given a search. Alright. Now this leaves me with the first question: What is the best way to render the response for the jQuery.ajax at server-side? I can't use templates I suppose, so the most obvious solution I think is to create the HTML tags as server-controls and render them as the result of an ASHX request? Is this is best approach? Nice. That solved we have yet another problem: When the user first enters the Authors List the first list page should already come from the server completely rendered alright? Of course we could render the first page as well as an ajax call but I don't think it's better. This time I CAN use templates to render the list but this template couldn't be reused in case 1. What do I do? Now the final question: Now we have 2 rendering strategies: 1) Client and 2) Server. How do I reuse code for the 2 renderings? What are the best pratices for solving these problems?

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  • Can I retrieve data from server to client during an asynchronous post-back using ASP.NET Ajax Librar

    - by André Pena
    ASP.NET Ajax Library provides some client-side events. For instance: Sys.Application.add_load( function(args) { // handle the end of any asynchronous post-back. Every-time there's // a server round-trip, this method will be called. } ); During the asynchronous post-back I want to retrieve information to the client. This information must be available in some event like the discribed above. Does the UpdatePanel or the ScriptManager have any server-side way to retrieve data back to client during an asynchronous post-back?

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  • Best pratice: How do I implement a list similar to Stackoverflow's Users List?

    - by André Pena
    Technologies involved: ASP.NET Web-forms Javascript (jQuery for instance) Case To make it clearer let's give the Stackoverflow Users list as an example. This list can be manipulated at client-side. I can search, page and so forth. So obviously we would need to call jQuery.ajax to retrieve the HTML of each page given a search. Alright. Now this leaves me with the first question: What is the best way to render the response for the jQuery.ajax at server-side? I can't use templates I suppose, so the most obvious solution I think is to create the HTML tags as server-controls and render them as the result of an ASHX request? Is this is best approach? Nice. That solved we have yet another problem: When the user first enters the Authors List the first list page should already come from the server completely rendered alright? Of course we could render the first page as well as an ajax call but I don't think it's better. This time I CAN use templates to render the list but this template couldn't be reused in case 1. What do I do? Now the final question: Now we have 2 rendering strategies: 1) Client and 2) Server. How do I reuse code for the 2 renderings? What are the best pratices for solving these problems?

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  • Where are the TweetDeck settings-files located in (ubuntu-) linux?

    - by Philipp Andre
    Hi Everybody, i'm running Windows as well as Ubuntu and like to sync both tweetdeck installations via dropbox. Therefore i need to locate two files: td_26_[username].db preferences_[username].xml I found them on windows under the folder c:\Users[account]\AppData\Roaming\TweetDeckFast.[random string]\Local Store\ But i can't find them on my ubuntu installation. Does anyone know where these files are located? Best Regards Philipp

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  • Test IE6 on Mac OS X

    - by marc-andre menard
    I like to be able to fully test compatibility of my web pages on Mac OS X. I have installed Parallels desktop. It works fine, but it uses a lot a of resources... So I would like to be able to test everything inside OS X. In fact I am looking for Explorer 6 for the Mac. Any suggestions around?

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  • memcpy segmentation fault on linux but not os x

    - by Andre
    I'm working on implementing a log based file system for a file as a class project. I have a good amount of it working on my 64 bit OS X laptop, but when I try to run the code on the CS department's 32 bit linux machines, I get a seg fault. The API we're given allows writing DISK_SECTOR_SIZE (512) bytes at a time. Our log record consists of the 512 bytes the user wants to write as well as some metadata (which sector he wants to write to, the type of operation, etc). All in all, the size of the "record" object is 528 bytes, which means each log record spans 2 sectors on the disk. The first record writes 0-512 on sector 0, and 0-15 on sector 1. The second record writes 16-512 on sector 1, and 0-31 on sector 2. The third record writes 32-512 on sector 2, and 0-47 on sector 3. ETC. So what I do is read the two sectors I'll be modifying into 2 freshly allocated buffers, copy starting at record into buf1+the calculated offset for 512-offset bytes. This works correctly on both machines. However, the second memcpy fails. Specifically, "record+DISK_SECTOR_SIZE-offset" in the below code segfaults, but only on the linux machine. Running some random tests, it gets more curious. The linux machine reports sizeof(Record) to be 528. Therefore, if I tried to memcpy from record+500 into buf for 1 byte, it shouldn't have a problem. In fact, the biggest offset I can get from record is 254. That is, memcpy(buf1, record+254, 1) works, but memcpy(buf1, record+255, 1) segfaults. Does anyone know what I'm missing? Record *record = malloc(sizeof(Record)); record->tid = tid; record->opType = OP_WRITE; record->opArg = sector; int i; for (i = 0; i < DISK_SECTOR_SIZE; i++) { record->data[i] = buf[i]; // *buf is passed into this function } char* buf1 = malloc(DISK_SECTOR_SIZE); char* buf2 = malloc(DISK_SECTOR_SIZE); d_read(ad->disk, ad->curLogSector, buf1); d_read(ad->disk, ad->curLogSector+1, buf2); memcpy(buf1+offset, record, DISK_SECTOR_SIZE-offset); memcpy(buf2, record+DISK_SECTOR_SIZE-offset, offset+sizeof(Record)-sizeof(record->data));

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  • unwanted \ caracter

    - by marc-andre menard
    php code: <?php echo json_encode(glob("photos-".$_GET["folder"].'/*.jpg')); ?> it return : ["photos-animaux\/ani-01.jpg","photos-animaux\/ani-02.jpg","photos-animaux\/ani-02b.jpg","photos-animaux\/ani-03.jpg","photos-animaux\/ani-04.jpg","photos-animaux\/ani-05.jpg","photos-animaux\/ani-06.jpg","photos-animaux\/ani-07.jpg","photos-animaux\/ani-08.jpg","photos-animaux\/ani-09.jpg","photos-animaux\/ani-10.jpg","photos-animaux\/ani-11.jpg","photos-animaux\/ani-12.jpg","photos-animaux\/ani-13.jpg","photos-animaux\/ani-14.jpg"] wich is ALMOST perfect, exept for the \ caracter... where it came from ??? no idea HELP here is the jquery code that call it: $.get( 'photolister.php', {'folder' : $(this).attr('href')}, function(data){startSlideshow(data);console.log(data);} );

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  • How do we calculate the filters in Mel-Frequency Cepstrum Coefficients Algorithm?

    - by André Ferreira
    After calculating the FFT and with the frequency we need to do something like this: http://instruct1.cit.cornell.edu/courses/ece576/FinalProjects/f2008/pae26%5Fjsc59/pae26%5Fjsc59/images/melfilt.png We filter the frequency spectrum with those triangles. I saw that we can use distint ways to calculcate the triangles. I will make the size of the triangles equal till 1kz and after that obtained with log function. What should we do now? With the frequency spectrum and the triangles defined.. - We should filter the frequency (frequencies limited to the triangles, if goes higher only counts till the triangle limit) and calculate the value of each triangle (and after that continue the algorithm). But when does the mel conversation happens? m = 2595 log (f/700 + 1) When do we pass from frequency to mel.. Can someone guide me in the right direction plz :d

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  • What are the biggest differences between Scala 2.8 and Scala 2.7?

    - by André Laszlo
    I've written a rather large program in Scala 2.75, and now I'm looking forward to version 2.8. But I'm curious about how this big leap in the evolution of Scala will affect me. What will be the biggest differences between these two versions of Scala? And perhaps most importantly: Will I need to rewrite anything? Do I want to rewrite anything just to take advantage of some cool new feature? What exactly are the new features of Scala 2.8 in general?

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  • Excel MAXIF function or emulation?

    - by Andre Boos
    I have a moderately sized dataset in Excel from which I wish to extract the maximum value of the values in Column B, but those that correspond only to cells in Column A that satisfy certain criteria. The desired functionality is similar to that of SUMIF or COUNTIF, but neither of those return data that is necessary. There isn't a MAXIF function, so I ask the SO community: how do I emulate one?

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  • Why does an event handler never get called if it's added within a loop on an ienumerable?

    - by André Carvalho
    Why does an event handler never get called if it's added within a loop on an ienumerable? For instance: IEnumerable<MyType> list = someCollection.Select(i => new MyType(i)); foreach (var item in list) item.PropertyChanged += item_PropertyChanged; <-- this never gets called Bu if list is assigned like list = someCollection.Select(i => new MyType(i)).ToArray(); the event handler does get called.. Why? (I imagine it has something to do with the fact that a LINQ query is lazy, but the fact of looping through the result isn't enough?)

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  • CommandManager Executed Events don't fire for custom ICommands

    - by Andre Luus
    The WPF CommandManager allows you to do the following (pseudo-ish-code): <Button Name="SomeButton" Command="{Binding Path=ViewModelCommand}"/> And in the code-behind: private void InitCommandEvents() { CommandManager.AddExecutedEventHandler(this.SomeButton, SomeEventHandler); } The SomeEventHandler never gets called. To me this didn't seem like something very wrong to try and do, but if you consider what happens inside CommandManager.AddExecutedEventHandler, it makes sense why it doesn't. Add to that the fact that the documentation clearly states that the CommandManager only works with RoutedCommands. Nonetheless, this had me very frustrated for a while and led me to this question: What would you suggest is the best workaround for the fact that the CommandManager does not support custom ICommands? Especially if you want to add behavior around the execution of a command? For now, I fire the command manually in code behind from the button click event.

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  • What's the best way to calculate similarity between rows in a table based on association?

    - by André Pena
    Suppose each Person has a collection of favorite Books. So I have a table for: Person Book The association between Person and Book (joint table for MxN) I want to fetch the Persons that are similar to a Person1 based on the favorite Books overlaping. That is: The more books they have in common, the more they are similar. I don't have to use only SQL to solve this problem. I could use programming also. I'm using SQL Server 2008 and C#. What solution would you experts use?

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