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• Active MQ showing more than one (ghost) consumer

  - by Shoey

  We have a system that uses ActiveMQ (Queues) - and have exactly one producer and one consumer (implemented as a Windows Service in .NET). Over the weekend, the infrastructure team had a reboot of the servers on the network, and from then on we noticed that there are more than one ghost consumer appearing that listens to the queue and we also suspect reads and deletes the messages. My questions are: is there any way from the Active MQ management console to find out what the consumers are (hostnames, etc). and Are there any scenarios in which inadvertent consumers get 'created'? For instance, there were suggestions about the active MQ journal folders getting corrupted after a reboot, or there is another suggestion that another machine with Active MQ broker automatically makes itself a consumer of all the queues on the main/live active mq server.

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• Trying to create C++/CLI assembly for use in .NET

  - by Bad Man

  I'm trying to bring a C++ library into C#, so naturally I am trying to make a C++/CLI project. In visual studio I created a new project (Visual C++ project, class library). I then tried to make a test class out of the pre-generated "Class1" namespace Test { public ref class TestIt { public: void DoWork() { System::Console::WriteLine("sup"); } // TODO: Add your methods for this class here. }; } So I compile in and go to the build folder.... hrmm no .dll wetf?? There's a .dll.intermediate.manifest file, but no .dll. So wut I did wrong?

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• send commands to a backgrounded jobs stdin

  - by dpcd

  I have a java server application that, when its running, you can interact with it sending commands via stdin. I want to write a web interface that can send these commands to it. In order to do that I need some way of getting commands from php to the stdin for this backgrounded job. Is there a way to do this from console? or possibly write some kind of wrapper that controls the server job and can access its stdin ? could this be done in python?

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• How to read and loop through each rows in an Excel using C#

  - by Ullan

  I need to read an excel file and loop through the rows. I used the below code to read the excel file. But I am not getting the entire row, inseatd of getting the column values. try { OleDbConnection objConnection = new OleDbConnection(strConnectionString); string queryString = string.Format("Select * from [{0}$]", strSheetName, objConnection); OleDbCommand command = new OleDbCommand(queryString, objConnection); objConnection.Open(); OleDbDataReader reader = command.ExecuteReader(); while (reader.Read()) { var val1 = reader[0].ToString(); //Here I want to get each row } reader.Close(); } catch (Exception ex) { Console.WriteLine(ex.Message); } I need to check if the row is empty or not, if not empty, I need to serach for some values in a particular column. Thanks for your help

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• how to view associated click function code

  - by llamerr

  For example, i associate following function with some element $('table#users tbody tr:first #save').click(function(){ $(this).closest('tr').remove(); }); Now, if i don't know where this function is stored, is there a way to view associated with click() code? In above example, i want a way to view that in firebug, or in another way $(this).closest('tr').remove(); If I'm writing in console following, i'm get a link to dom inspector >>> ($('table#users tbody tr:first #save').click) function() but link is for jquery library, not the code i want.

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• Core Data - insertNewObjectForEntityForName debug

  - by Snow Crash

  I'm trying to figure out why insertNewObjectForEntityForName is not working. I assume it's something to do with my data model but can't be sure. Xcode does not report any errors nor does it crash. All I get is the first log statement output to the console. NSLog(@"Get here..."); Task *task = (Task *)[NSEntityDescription insertNewObjectForEntityForName:@"Task" inManagedObjectContext:insertionContext]; NSLog(@"but never get here..."); Any suggestions as to how I can work out what the problem is?

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• Getting req.params in order in Express JS

  - by Adam Terlson

  In Express, is there a way to get the arguments passed from the matching route in the order they are defined in the route? I want to be able to apply all the params from the route to another function. The catch is that those parameters are not known up front, so I cannot refer to each parameter by name explicitly. app.get(':first/:second/:third', function (req) { output.apply(this, req.mysteryOrderedArrayOfParams); // Does this exist? }); function output() { for(var i = 0; i < arguments.length; i++) { console.log(arguments[i]); } } Call on GET: "/foo/bar/baz" Desired Output (in this order): foo bar baz

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• how to debug a WCF service once it's out of dev env

  - by ffc

  hi, I have a WCF service that i've been able to communicate with fine while it's hosted locally. I have it deployed to a web server in IIS now, and I can get the wsdl file without error by navigating to http://site.com:8000/service/servicename.svc?wsdl in trying to test this, i've created a console app and was able to successfully add a service reference to this. But when I try to run a Get() method on the service reference, it just hangs with no response. How can I begin to debug this? Thanks!

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• Programmatically Untag FB Photos with Javascript

  - by Tal

  Hello! I've spent the past hour hacking away at this: I want to write a Javscript routine to programatically untag myself from photos on Facebook. Once it works, I'll run it in the Firebug console and untag myself from all Facebook photos (there's no way to do this through the GUI). I wanted to see if you guys had some advice to get me on my journey. I have a few methods in mind but haven't come too far along quite yet. I've tried an AJAX approach by creating a new HTML request and pointing it to the remove_tag URL, which looks something like this: /ajax/photo_tagging_ajax.php?pid=(PICTURE_ID)&id=(PICTURE_OWNER_ID)&subject=(SOMETHING)&name=(YOUR+NAME)&action=remove Not surprisingly, this doesn't work (yet). I've been checking the HTTP response in Firebug and it's quite different than the one when I actually untag a picture. It's not even sending a POST request. Will this even be possible or am I dreaming? (it's almost 4AM)

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• Why in the hell is this happening?

  - by user202411

  I just can't understand why is my database (mysql) behaving like this! My console shows that the record is created properly (please, notice the "remote_id" value): Tweet Create (0.3ms) INSERT INTO `tweets` (`remote_id`, `text`, `user_id`, `twitter_account_id`) VALUES (12325438258, 'jamaica', 1, 1) But when I check the record, it shows that the remote_id is 2147483647 intead of the provided value (12325438258 in the example above)... This table has many entries, but this field is always written with 2147483647... It was supposed to fill this space with an unique id (which I guarantee you is being generated properly).

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• how do I download a large file (via HTTP) in .NET

  - by nickcartwright

  I need to download a LARGE file (2GB) over HTTP in a C# console app. Problem is, after about 1.2GB, the app runs out of memory. Here's the code I'm using: WebClient request = new WebClient(); request.Credentials = new NetworkCredential(username, password); byte[] fileData = request.DownloadData(baseURL + fName); As you can see... I'm reading the file directly into memory. I'm pretty sure I could solve this if I were to read the data back from HTTP in chunks and write it to a file on disk. Does anyone know how I could do this?

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• "There was an internal API error." while running an app on any iPhone/iPod-touch device

  - by Martin Cowie

  I am in the process of submitting an iPhone app to the app store. While making the final touches to the app I was in the process of compiling and running the app on my iPhone when I got the message ... "There was an internal API error." The console had this to say ... 25/08/2010 10:10:54 Xcode[3556] Failed willExecute: Error Domain=com.apple.platform.iphoneos Code=0 UserInfo=0x2011adec0 "There was an internal API error." -- { NSLocalizedDescription = "There was an internal API error."; NSLocalizedFailureReason = ""; NSLocalizedRecoverySuggestion = ""; } The problem is specific to this project, others projects don't suffer the same problem. The same problem exhibits when moved to another machine, or another mobile device is swapped in. I should be most grateful for any hints or ideas on the subject ...

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• ActiveRecord has_many and polymorphic

  - by leomayleomay

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

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• New records added to DataGridView aren't displayed

  - by Ross

  I have a custom Order class, groups of which are stored in List<Order> and a DataGridView. I think the problem is in my implementation so here's how I'm using it: In the form enclosing DataGridView (as OrdersDataGrid): public partial class MainForm : Form { public static List<Order> Orders; public MainForm() { // code to populate Orders with values, otherwise sets Orders to new List<Order>(); OrdersDataGrid.DataSource = Orders; } Then in another form that adds an Order: // Save event public void Save(object sender, EventArgs e) { Order order = BuildOrder(); // method that constructs an order object from form data MainForm.Orders.Add(order); } From what I can tell from the console this is added successfully. I thought the DataGrid would be updated automatically after this since Orders has changed - is there something I'm missing? The DataGrid accepts the class since it generates columns from the members.

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• Mysql configuration errror : using password (NO) instead of YES.

  - by Tristan

  Hello, I try to connect mysql via PHPMYADMIN, using my password, but it can't stop telling me that (access denied, using password NO) but i'm using a password :O When i connect via the console with my password, it works but not on phpmyadmin. It's really weird. Do you have an idea to fix that ? edit: it worked couple of days ago, because i created 2 databases and 2 users via phpmyadmin... Thanks edit : When i'm using CHROME it's working unless FireFox ... any ideas ?

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• Accessing current user personal certificate store within windows service

  - by Xeel

  I am working on an application which accesses a x.509 certificate from the current user store. This works fine when the application is run as an executable. However, when I try running the app as a windows service, it fails to find the certificate. I tried changing the LogOn property for the windowsservice console to set the right user, but that did not help. Is there any way I can access the particular user's (Administrator) certificate store? I am bound to use the certificate in the user store - else I can easily use the local machine store. Any help will be appreciated.

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• Objective-C why doesn't my array of array works?

  - by Quetsche

  This is probably a completely stupid question, but i'm pretty new at objective-C and programing in general. i'm trying to make an array of arrays but can't manage to make it work : @interface ArraysAndDicts : NSObject { NSMutableArray * mySimpleArray; NSMutableArray * myComplicatedArray; } the implementation : -(void)generateValueForArrayOfArrays { [self generateValueForArray]; //this generates an array with 5 elements 'mySimpleArray' [myComplicatedArray addObject:mySimpleArray]; NSMutableArray * mySecondaryArray = [[NSMutableArray alloc] init]; [mySecondaryArray addObject:@"twoone"]; [mySecondaryArray addObject:@"twotwo"]; [myComplicatedArray addObject:mySecondaryArray]; (i edited out all the NSLogs for clarity) When running my app, the console tells me : mySecondaryArray count = 2 mySimpleArray count = 5 myComplicatedArraycount = 0 So, i know there are other ways to make multidimensional arrays, but i'd really like to know why this doesn't work. Thank you.

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• JSON Response {"d":"128.00"} but displaying "128"

  - by TGuimond

  Hi all, I have been working on a shopping cart that the user can add/remove order items as they please and am returning an updated sub-total via a webservice using jQuery $.ajax Here is how I am calling the webservice and setting the sub-total with the response. //perform the ajax call $.ajax({ url: p, data: '{' + s + '}', success: function(sTotal) { //order was updated: set span to new sub-total $("#cartRow" + orderID).find(".subTotal").text(sTotal); }, failure: function() { //if the orer was not saved //console.log('Error: Order not deleted'); } }); The response I am getting seems perfectly fine: {"d":"128.00"} When I display the total on the page it displays as 128 rather than 128.00 I am fully sure it is something very simple and silly but I am so deep into it now I need someone with a fresh brain to help me out!! Cheers :)

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• How to optimize this script

  - by marks34

  I have written the following script. It opens a file, reads each line from it splitting by new line character and deleting first character in line. If line exists it's being added to array. Next each element of array is splitted by whitespace, sorted alphabetically and joined again. Every line is printed because script is fired from console and writes everything to file using standard output. I'd like to optimize this code to be more pythonic. Any ideas ? import sys def main(): filename = sys.argv[1] file = open(filename) arr = [] for line in file: line = line[1:].replace("\n", "") if line: arr.append(line) for line in arr: lines = line.split(" ") lines.sort(key=str.lower) line = ''.join(lines) print line if __name__ == '__main__': main()

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• Can Silverlight be linked with a C++ static library ?

  - by Niklaos

  Hi, I'm currently doing research to start a new project. This project will be in 2 parts a light Client (probably console) and an heavy one using silverlight. The light client must be cross-platform. However, they will both use the same Core (by the way, the core will need to use the sockets). I'd like to use C++ to build the light client but given that the core is common to both applications, it would be much appreciated if it's could be the same code. So the question is quite simple : Can Silverlight be compilated with a C++ static library ? And if it's possible, what about cross-platform issues (with moonlight) ? If it's not possible. Which language can i use to work with silverlight while being cross-platform ? Because of performance, a compilated language will be better ! Thanks for your expertise :)

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• C# Dataset usage necessary before passing to GridView datasource?

  - by Goober

  Scenario Lets say for example I have a series of events that fire continually every half second presenting me with an object containing some bits of information. There are always between 10 and 15 objects that are being updated constantly. Since these bits of information are changing continually I want to display them in a GridView. When I do so, I want the user to see the data displayed in the gridview and actually be updated as opposed to just a continually extending list being printed and incrementing (like writeline on the console). Question Is the best way to achieve this to map my objects to a dataset and have the dataset mapped to the gridview? Thoughts Will this allow the gridview to just be "UPDATED" as opposed to being added to? Any implementation suggestions would be greatly appreciated. EDIT: it MUST be windows forms (I use DevExpress too)

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• Random walk- Brownian Motion

  - by Sam

  I've been assigned the project of creating a simple console app. that models brownian motion in a 2D plane. I wasn't given much information on how to do so (and I'm hoping that it's a pretty popular assignment so that I could get some insight) just that it relies on random number generation. I researched brownian motion for a little bit and saw some formulas that looked complicated, but by the description is just seems to have to move randomly within a certain number interval. Can anyone clarify? Am I to create a program that continually creates a random number in an interval and then modify the particles "x" and "y" coordinate or is there more to it? Thanks for any help.

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• PHP and Javascript: Getting file contents with Javascript variable

  - by celliott1997

  Could someone help me to understand why this isn't working? var uname = "<?php echo strtolower($_GET['un']) ?>"; var source = "<?php echo file_get_contents('accounts/"+uname+"') ?>"; console.log(source); I've been trying for a while to get this working and it just doesn't seem to. Before I added in the source variable, it was working fine and displayed the un variable on the page. Thanks.

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• node.js simply does not run

  - by user309641

  I installed and ran node.js just fine on my mac, but even if I do this on windows chdir c:\testfolder node example.js then I get this error: node.js:201 throw e; // process.nextTick error, or 'error' event on first tick Error: Cannot find module 'c:\testfolder\example.js' at Function._resolveFilename <module.js:322:11> at Function._load <module.js:299:25> at Array.0 <module.js:499:10> at EventEmitter._tickCallback <node.js:192:40> I'm only even trying to run the example code on the nodejs website: var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World\n'); }).listen(1337, '127.0.0.1'); console.log('Server running at http://127.0.0.1:1337/');

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• Interesting OOPS puzzle

  - by user3714387

  Recently, faced the below question from one of the interviewer. Initially thought that the question was wrong, but the interviewer mentioned there is solution for this. Quite interesting. Can anyone shed light please ? Program as below. public class BaseHome { public static void main() { Console.WriteLine("A"); } } Required output : B A C Condition : Should not make any change in the Main function. Should not create any additional class. Please advice if this can be done with the condition met.

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