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• Simple Android OpenGL App Lag

  - by Eugene

  Hi, I have an Android OpenGL application which simply draws 2D squares (using 2 triangles) and animates them moving down the screen. I essentially do this by running: glLoadIdentity(), then glTranslatef, and finally glDrawElements all in a for loop. (The for loop is to draw all 10 blocks on the screen for every frame). In every drawFrame, the y-position of the blocks increments for the animation. The problem I'm having is strange. I run the application and the animation is laggy and not smooth. Then I re-run the application and I get a smooth animation. If I run again, I may get a smooth animation, or possibly not. Is my method correct, or is there a better way of doing this animation? Thanks for the help!

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• Thread to receive the messages from serial port is not working using c#

  - by karthik

  I am using Serial port to receive the messages. The below function is running in a thread. When i debug i find that the thread is running properly. But "if (sp.IsOpen)" is always false, due to which the code is not executing inside the IF condition at all. It says the Port is closed. I will be having multiple serial ports in my system and i will not know, which port will receive the message. So i need to listen to all the ports in one Thread. How can i solve my problem here ? private void ListenerPorts() { log.Info("Listening Thread Started"); while (true) { //foreach (SerialPort sp in storeport) foreach (SerialPort sp in comPortsList) { if (sp.IsOpen) { sp.ReadTimeout = readTimeoutInMs; sp.WriteTimeout = writeTimeoutInMs; try { string msg = sp.ReadLine(); this.GetMessageRichTextBox("Message : " + msg + "\n"); sp.WriteLine(sp.PortName); if (msg.Contains("COM")) { // is AutoScan receiverPortName = sp.ReadLine(); this.updateLblStatusRichTextBox(sp.PortName + " is connected to " + msg + "\n"); } else { //standalone is uppercase ReceiverPortName = sp.ReadLine(); this.updateLblStatusRichTextBox(sp.PortName + " is connected to " + ReceiverPortName + "\n"); } } catch (Exception ex) { // no data System.Diagnostics.Debug.WriteLine(sp.PortName + " : " + ex.Message); } } } } }

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• Sending email via GMail in .NET

  - by VP

  I am getting the following error when I try to send an email in my C# program. I am using Visual Studio 2008 on windows 7. I would paste my code first and then the error: class email_log_files { private string login_username = "my_gmail_id"; private string login_password = "my_gmail_password"; public void send_email() { string src_address = "[email protected]"; string dest_address = "[email protected]"; try { MailMessage email_msg = new MailMessage(); SmtpClient email_client = new SmtpClient(); email_msg.From = new MailAddress(src_address); email_msg.Sender = new MailAddress(src_address); email_msg.ReplyTo = new MailAddress(src_address); email_msg.To.Add(dest_address); email_msg.Subject = "Test"; email_msg.Body = "Body of the message"; NetworkCredential credentials = new NetworkCredential(login_username, login_password); email_client.Credentials = credentials; email_client.Host = "smtp.gmail.com"; email_client.Port = 465; email_client.EnableSsl = true; email_client.Send(email_msg); Console.WriteLine("Message Sent Successfully!!"); Console.ReadLine(); } } } And the error message is as follows: The operation has timed out. Why is it always timing out? I am sure that I have the correct smtp server address and port number for gmail as I have configured my outlook with the same. Any help or ideas?

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• Auto generating UI

  - by joshua

  Hi Guys; I am writting an application that autogenerated the data input UI from a java bean. Now i have a bean that has other beans as a property. eg User has property username, and usertype of type UserType; Whats the best strategy in java. Do i loop through the fields in an if else loop? eg. get field list if field is of type text use text field else if field is a number user a number field etc. is there a shortcut to the ifs?

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• Excel Automation - creating a new worksheet

  - by Andrew Shepherd

  I am attempting what seems like a simple task: using C# to create a new Excel document containing new worksheets. For some reason, I am getting a strange COM error (0x800A03EC) Has anyone managed to get this to work? Does anyone have suggestions as to how to troubleshoot this? I've isolated this into the minimum amount of code: using Microsoft.Office.Interop.Excel; using System.Diagnostics; namespace ExcelAutomation { public static class ExcelTests { public static void CreateWorksheet() { try { var app = new Microsoft.Office.Interop.Excel.Application(); app.Visible = true; var workBooks = app.Workbooks; var newWorkbook = app.Workbooks.Add(XlWBATemplate.xlWBATWorksheet); Worksheet existingWorksheet = (Worksheet)newWorkbook.Sheets[1]; Worksheet workSheet = (Worksheet)newWorkbook.Sheets.Add ( null, // before existingWorksheet, null, // 1, null //XlSheetType.xlWorksheet ); } catch (System.Runtime.InteropServices.COMException ex) { Trace.WriteLine(string.Format("Caught COMException. Message: \"{0}\"", ex.Message)); } } } } The output window now says: Caught COMException. Message: "Exception from HRESULT: 0x800A03EC"

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• Ruby Multithreading: making one thread wait for a signal from another

  - by Peter

  In Ruby, I want to have two threads running at the same time, and want the background thread to periodically signal the foreground thread. How do I get the foreground thread to block until the background thread says 'go'? I can think of a few ways to do it, but am after the most appropriate, idiomatic Ruby method. In code: loop do # background, thread 1 sleep 3 receive_input # tell foreground input is ready # <-- how do I do this? end and loop do # foreground, thread 2 wait_for_signal_from_background # <-- how do I do this? do_something end

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• Ruby Thread with "watchdog"

  - by Sergio Campamá

  I'm implementing a ruby server for handling sockets being created from GPRS modules. The thing is that when the module powers down, there's no indication that the socket closed. I'm doing threads to handle multiple sockets with the same server. What I'm asking is this: Is there a way to use a timer inside a thread, reset it after every socket input, and that if it hits the timeout, closes the thread? Where can I find more information about this? EDIT: Code example that doesn't detect the socket closing require 'socket' server = TCPServer.open(41000) loop do Thread.start(server.accept) do |client| puts "Client connected" begin loop do line = client.readline open('log.txt', 'a') { |f| f.puts line.strip } end rescue puts "Client disconnected" end end end

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• int.Parse of "8" fails. int.Parse always requires CultureInfo.InvariantCulture?

  - by Henrik Carlsson

  We develop an established software which works fine on all known computers except one. The problem is to parse strings that begin with "8". It seems like "8" in the beginning of a string is a reserved character. Parsing: int.Parse("8") -> Exception message: Input string was not in a correct format. int.Parse("80") -> 0 int.Parse("88") -> 8 int.Parse("8100") -> 100 CurrentCulture: sv-SE CurrentUICulture: en-US The problem is solved using int.Parse("8", CultureInfo.InvariantCulture). However, it would be nice to know the source of the problem. Question: Why do we get this behaviour of "8" if we don't specify invariant culture? Additional information: I did send a small program to my client achieve the result above: private int ParseInt(string s) { int parsedInt = -1000; try { parsedInt = int.Parse(s); textBoxMessage.Text = "Success: " + parsedInt; } catch (Exception ex) { textBoxMessage.Text = string.Format("Error parsing string: '{0}'", s) + Environment.NewLine + "Exception message: " + ex.Message; } textBoxMessage.Text += Environment.NewLine + Environment.NewLine + "CurrentCulture: " + Thread.CurrentThread.CurrentCulture.Name + "\r\n" + "CurrentUICulture: " + Thread.CurrentThread.CurrentUICulture.Name + "\r\n"; return parsedInt; }

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• Convert Decimal to ASCII

  - by Dan Snyder

  I'm having difficulty using reinterpret_cast. Before I show you my code I'll let you know what I'm trying to do. I'm trying to get a filename from a vector full of data being used by a MIPS I processor I designed. Basically what I do is compile a binary from a test program for my processor, dump all the hex's from the binary into a vector in my c++ program, convert all of those hex's to decimal integers and store them in a DataMemory vector which is the data memory unit for my processor. I also have instruction memory. So When my processor runs a SYSCALL instruction such as "Open File" my C++ operating system emulator receives a pointer to the beginning of the filename in my data memory. So keep in mind that data memory is full of ints, strings, globals, locals, all sorts of stuff. When I'm told where the filename starts I do the following: Convert the whole decimal integer element that is being pointed to to its ASCII character representation, and then search from left to right to see if the string terminates, if not then just load each character consecutively into a "filename" string. Do this until termination of the string in memory and then store filename in a table. My difficulty is generating filename from my memory. Here is an example of what I'm trying to do: C++ Syntax (Toggle Plain Text) 1.Index Vector NewVector ASCII filename 2.0 240faef0 128123792 'abc7' 'a' 3.0 240faef0 128123792 'abc7' 'ab' 4.0 240faef0 128123792 'abc7' 'abc' 5.0 240faef0 128123792 'abc7' 'abc7' 6.1 1234567a 243225 'k2s0' 'abc7k' 7.1 1234567a 243225 'k2s0' 'abc7k2' 8.1 1234567a 243225 'k2s0' 'abc7k2s' 9. //EXIT LOOP// 10.1 1234567a 243225 'k2s0' 'abc7k2s' Index Vector NewVector ASCII filename 0 240faef0 128123792 'abc7' 'a' 0 240faef0 128123792 'abc7' 'ab' 0 240faef0 128123792 'abc7' 'abc' 0 240faef0 128123792 'abc7' 'abc7' 1 1234567a 243225 'k2s0' 'abc7k' 1 1234567a 243225 'k2s0' 'abc7k2' 1 1234567a 243225 'k2s0' 'abc7k2s' //EXIT LOOP// 1 1234567a 243225 'k2s0' 'abc7k2s' Here is the code that I've written so far to get filename (I'm just applying this to element 1000 of my DataMemory vector to test functionality. 1000 is arbitrary.): C++ Syntax (Toggle Plain Text) 1.int i = 0; 2.int step = 1000;//top->a0; 3.string filename; 4.char *temp = reinterpret_cast<char*>( DataMemory[1000] );//convert to char 5.cout << "a0:" << top->a0 << endl;//pointer supplied 6.cout << "Data:" << DataMemory[top->a0] << endl;//my vector at pointed to location 7.cout << "Data(1000):" << DataMemory[1000] << endl;//the element I'm testing 8.cout << "Characters:" << &temp << endl;//my temporary char array 9. 10.while(&temp[i]!=0) 11.{ 12. filename+=temp[i];//add most recent non-terminated character to string 13. i++; 14. if(i==4)//when 4 chatacters have been added.. 15. { 16. i=0; 17. step+=1;//restart loop at the next element in DataMemory 18. temp = reinterpret_cast<char*>( DataMemory[step] ); 19. } 20. } 21. cout << "Filename:" << filename << endl; int i = 0; int step = 1000;//top-a0; string filename; char *temp = reinterpret_cast( DataMemory[1000] );//convert to char cout << "a0:" << top-a0 << endl;//pointer supplied cout << "Data:" << DataMemory[top-a0] << endl;//my vector at pointed to location cout << "Data(1000):" << DataMemory[1000] << endl;//the element I'm testing cout << "Characters:" << &temp << endl;//my temporary char array while(&temp[i]!=0) { filename+=temp[i];//add most recent non-terminated character to string i++; if(i==3)//when 4 chatacters have been added.. { i=0; step+=1;//restart loop at the next element in DataMemory temp = reinterpret_cast( DataMemory[step] ); } } cout << "Filename:" << filename << endl; So the issue is that when I do the conversion of my decimal element to a char array I assume that 8 hex #'s will give me 4 characters. Why isn't this this case? Here is my output: C++ Syntax (Toggle Plain Text) 1.a0:0 2.Data:0 3.Data(1000):4428576 4.Characters:0x7fff5fbff128 5.Segmentation fault

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• Any way to make this working dual core in C#?

  - by Frantisek

  Hi, I got a piece of code that loops through the array and looks for the similar and same strings in it - marking it whether it's unique or not. loop X array for I ( loop X array for Y ( If X is prefix of Y do. else if x is same length as Y and it's prefix do something. ) Here is the code to finilize everything for I and corresponding (found/not found) matches in Y. ) I'd like to make this for dual-core to multithread it. To my knowledge it is not possible, but it's highly probable that you may have some idea.

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• ZipArchive on the iPhone unzips files but they are empty

  - by user345131

  I'm trying to use ZipArchive on the iPhone to unzip a simple text file. It returns with no error but the file is empty. I would love to know why this doesn't work. I am using the following methods: -(void)alert:(NSString*)message { UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"" message:message delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil]; [myAlert show]; [myAlert release]; } -(void)unzip { NSString *sourcepath = [[NSBundle mainBundle] pathForResource:@"secret" ofType:@"zip"]; NSString*filename = @"secret.txt"; NSArray *docPaths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); NSString *destinationpath = [docPaths objectAtIndex: 0]; if (filename != nil ) destinationpath = [destinationpath stringByAppendingPathComponent: filename]; ZipArchive* za = [[ZipArchive alloc] init]; if( [za UnzipOpenFile:sourcepath Password:@""] ) { BOOL ret = [za UnzipFileTo:destinationpath overWrite:YES]; if( NO==ret ) [self alert:@"Problem"]; else [self alert:@"Success"]; [za UnzipCloseFile]; } [za release]; NSString *test = [[NSString alloc] initWithContentsOfFile:destinationpath encoding:NSASCIIStringEncoding error:nil]; [self alert:test]; }

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• Letting a new PHP page know a new POST value is an Array?

  - by Wintermute

  I have a page that creates an associative array, then passes it as a hidden value to a new PHP page. I have a foreach loop waiting to iterate through it but it coughs up an "invalid argument" error, as if the page doesn't know the value it's working with is an array (Despite "print" showing simply "Array"). This is essentially what I have: //Hidden input to be passed to the next page print "<input type=\"hidden\" name=\"price_list\" value=\"$item_list\"> //Code on the second page for the foreach loop extract($_POST); foreach($price_list as $name=>$price) { ... } But I am simply given "Warning: Invalid argument supplied for foreach() in /home/cut/mg299/public_html/PHP/invoice.php on line 17". The array works fine, as I can iterate on the previous page, and other values are parsed fine to this second page. Do I need to 'reinitialise' this array value?

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• What trick will give most reliable/compatible sound alarm in a browser window for most browsers

  - by Dirk Paessler

  I want to be able to play an alarm sound using Javascript in a browser window, preferably with the requirement for any browser plugins (Quicktime/Flash). I have been experimenting with the tag and the new Audio object in Javascript, but results are mixed: As you can see, there is no variant that works on all browsers. Do I miss a trick that is more cross-browser compatible? This is my code: // mp3 with Audio object var snd = new Audio("/sounds/beep.mp3");snd.play(); // wav with Audio object var snd = new Audio("/sounds/beep.wav");snd.play(); // mp3 with EMBED tag $("#alarmsound").empty().append ('<embed src="/sounds/beep.mp3" autostart="true" loop="false" '+ 'volume="100" hidden="true" width="1" height="1" />'); // wav with EMBED tag $("#alarmsound").empty().append ('<embed src="/sounds/beep.wav" autostart="true" loop="false" '+ 'volume="100" hidden="true" width="1" height="1" />'); }

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• How can I set up an editor to work with Git on Windows?

  - by Patrick McElhaney

  I'm trying out Git on Windows. I got to the point of trying "git commit" and I got this error: Terminal is dumb but no VISUAL nor EDITOR defined. Please supply the message using either -m or -F option. So I figured out I need to have an environment variable called EDITOR. No problem. I set it to point to Notepad. That worked, almost. The default commit message opens in Notepad. But Notepad doesn't support bare line feeds. I went out and got Notepad++. But I can't figure out how to get Notepad++ set up as the %EDITOR% in such a way that it works with Git as expected. I'm not married to Notepad++. At this point I couldn't care less what editor I use. I just want to be able to type my commit messages without using -m. So, for those of you using Git on Windows: What (free) tool do you use to edit your commit message, and what do you get when you type echo %EDITOR% at the command prompt?

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• Simulating C-style for loops in python

  - by YGA

  (even the title of this is going to cause flames, I realize) Python made the deliberate design choice to have the for loop use explicit iterables, with the benefit of considerably simplified code in most cases. However, sometimes it is quite a pain to construct an iterable if your test case and update function are complicated, and so I find myself writing the following while loops: val = START_VAL while <awkward/complicated test case>: # do stuff ... val = <awkward/complicated update> The problem with this is that the update is at the bottom of the while block, meaning that if I want to have a continue embedded somewhere in it I have to: use duplicate code for the complicated/awkard update, AND run the risk of forgetting it and having my code infinite loop I could go the route of hand-rolling a complicated iterator: def complicated_iterator(val): while <awkward/complicated test case>: yeild val val = <awkward/complicated update> for val in complicated_iterator(start_val): if <random check>: continue # no issues here # do stuff This strikes me as waaaaay too verbose and complicated. Do folks in stack overflow have a simpler suggestion?

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• java.lang.ExceptionInInitializerError Exception when creating Application Context in Spring

  - by cyotee

  I am practicing with Spring, and am getting a java.lang.ExceptionInInitializerError exception when I try to instantiate the context. The Exception appears below, with my code following it. I have simplified my experiment from before. The Exception Oct 17, 2012 5:54:22 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@570c16b7: startup date [Wed Oct 17 17:54:22 CDT 2012]; root of context hierarchy Exception in thread "main" java.lang.ExceptionInInitializerError at org.springframework.context.support.AbstractRefreshableApplicationContext.createBeanFactory(AbstractRefreshableApplicationContext.java:195) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:128) at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:535) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:449) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at helloworld.HelloWorldTest.main(HelloWorldTest.java:13) Caused by: java.lang.NullPointerException at org.springframework.beans.factory.support.DefaultListableBeanFactory.<clinit>(DefaultListableBeanFactory.java:105) ... 7 more My configuration XML <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:c="http://www.springframework.org/schema/c" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd"> <bean id="messageContainer" class="helloworld.MessageContainer"> <property name="message" value="Hello World"> </property> </bean> <bean id="messageOutputService" class="helloworld.MessageOutputService"> </bean> My test class. package helloworld; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class HelloWorldTest { /** * @param args */ public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("HelloWorldTest-context.xml"); MessageContainer message = context.getBean(MessageContainer.class); MessageOutputService service = context.getBean(MessageOutputService.class); service.outputMessageToConsole(message); } }

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• What does 'postMessage()' do when called on an object tag?

  - by Stephano

  I was recently searching for a way to call the print function on a PDF I was displaying in adobe air. I solved this problem with a little help from this fellow, and by calling postMessage on my PDF like so: //this is the HTML I use to view my PDF <object id="PDFObj" data="test.pdf" type="application/pdf"/> ... //this actionscript lives in my air app var pdfObj:Object = htmlLoader.window.document.getElementById("PDFObj"); pdfObj.postMessage([message]); I've tried this in JavaScript as well, just to be sure it wasn't adobe sneaking in and helping me out... var obj = document.getElementById("PDFObj"); obj.postMessage([message]); Works well in JavaScript and in ActionScript. I looked up what the MDC had to say about postMessage, but all I found was window.postMessage. Now, the code works like a charm, and postMessage magically sends my message to my PDF's embedded JavaScript. However, I'm still not sure how I'm doing this. Any ideas?

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• how to multithread on a python server

  - by user3732790

  HELP please i have this code import socket from threading import * import time HOST = '' # Symbolic name meaning all available interfaces PORT = 8888 # Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) print ('Socket created') s.bind((HOST, PORT)) print ('Socket bind complete') s.listen(10) print ('Socket now listening') def listen(conn): odata = "" end = 'end' while end == 'end': data = conn.recv(1024) if data != odata: odata = data print(data) if data == b'end': end = "" print("conection ended") conn.close() while True: time.sleep(1) conn, addr = s.accept() print ('Connected with ' + addr[0] + ':' + str(addr[1])) Thread.start_new_thread(listen,(conn)) and i would like it so that when ever a person comes onto the server it has its own thread. but i can't get it to work please someone help me. :_( here is the error code: Socket created Socket bind complete Socket now listening Connected with 127.0.0.1:61475 Traceback (most recent call last): File "C:\Users\Myles\Desktop\test recever - Copy.py", line 29, in <module> Thread.start_new_thread(listen,(conn)) AttributeError: type object 'Thread' has no attribute 'start_new_thread' i am on python version 3.4.0 and here is the users code: import socket #for sockets import time s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) print('Socket Created') host = 'localhost' port = 8888 remote_ip = socket.gethostbyname( host ) print('Ip address of ' + host + ' is ' + remote_ip) #Connect to remote server s.connect((remote_ip , port)) print ('Socket Connected to ' + host + ' on ip ' + remote_ip) while True: message = input("> ") #Set the whole string s.send(message.encode('utf-8')) print ('Message send successfully') data = s.recv(1024) print(data) s.close

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• Tricky Big-O complexity

  - by timeNomad

  public void foo (int n, int m) { int i = m; while (i > 100) i = i/3; for (int k=i ; k>=0; k--) { for (int j=1; j<n; j*=2) System.out.print(k + "\t" + j); System.out.println(); } } I figured the complexity would be O(logn). That is as a product of the inner loop, the outer loop -- will never be executed more than 100 times, so it can be omitted. What I'm not sure about is the while clause, should it be incorporated into the Big-O complexity? For very large i values it could make an impact, or arithmetic operations, doesn't matter on what scale, count as basic operations and can be omitted?

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• How to access and work with XML from API in C#

  - by Jarek

  My goal is to pull XML data from the API and load it to a sql server database. The frist step I'm attempting here is to access the data and display it. Once I get this to work I'll loop through each row and insert the values into a sql server database. When I try to run the code below nothing happens and when I paste the url directly into the browser I get this error "2010-03-08 04:24:17 Wallet exhausted: retry after 2010-03-08 05:23:58. 2010-03-08 05:23:58" To me it seems that every iteration of the foreach loop makes a call to the site and I get blocked for an hour. Am I retrieving data from the API in an incorrect manner? Is there some way to load the data into memory or an array then loop through that? Here's the bit of code I hacked together. using System; using System.Data.SqlClient; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Xml; using System.Data; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { try { string userID = "123"; string apiKey = "abc456"; string characterID = "789"; string url = "http://api.eve-online.com/char/WalletTransactions.xml.aspx?userID=" + userID + "&apiKey=" + apiKey + "&characterID=" + characterID; XmlDocument xmldoc = new XmlDocument(); xmldoc.Load(url); XmlNamespaceManager xnm1 = new XmlNamespaceManager(xmldoc.NameTable); XmlNodeList nList1 = xmldoc.SelectNodes("result/rowset/row", xnm1); foreach (XmlNode xNode in nList1) { Response.Write(xNode.InnerXml + "<br />"); } } catch (SqlException em) { Response.Write(em.Message); } } } Here's a sample of the xml <eveapi version="2"> <currentTime>2010-03-06 17:38:35</currentTime> <result> <rowset name="transactions" key="transactionID" columns="transactionDateTime,transactionID,quantity,typeName,typeID,price,clientID,clientName,stationID,stationName,transactionType,transactionFor"> <row transactionDateTime="2010-03-06 17:16:00" transactionID="1343566007" quantity="1" typeName="Co-Processor II" typeID="3888" price="1122999.00" clientID="1404318579" clientName="unseenstrike" stationID="60011572" stationName="Osmeden IX - Moon 6 - University of Caille School" transactionType="sell" transactionFor="personal" /> <row transactionDateTime="2010-03-06 17:15:00" transactionID="1343565894" quantity="1" typeName="Co-Processor II" typeID="3888" price="1150000.00" clientID="1404318579" clientName="unseenstrike" stationID="60011572" stationName="Osmeden IX - Moon 6 - University of Caille School" transactionType="sell" transactionFor="personal" /> </rowset> </result> <cachedUntil>2010-03-06 17:53:35</cachedUntil> </eveapi>

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• phpUnit - mock php extended exception object

  - by awongh

  I'm testing some legacy code that extends the default php exception object. This code prints out a custom HTML error message. I would like to mock this exception object in such a way that when the tested code generates an exception it will just echo the basic message instead of giving me the whole HTML message. I cannot figure out a way to do this. It seems like you can test for explicit exceptions, but you can't change in a general way the behavior of an exception, and you also can't mock up an object that extends a default php functionality. ( can't think of another example of this beyond exceptions... but it would seem to be the case ) I guess the problem is, where would you attach the mocked object?? It seems like you can't interfere with 'throw new' and this is the place that the object method is called.... Or if you could somehow use the existing phpunit exception functionality to change the exception behavior the way you want, in a general way for all your code... but this seems like it would be hacky and bad....

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• How to access fields in JSON object by index

  - by Stefan

  I know this isn't the best way to do it, but I have no other choice :( I have to access the items in JSONObject by their index. The standard way to access objects is to just wirte this[objectName] or this.objectName. I also found a method to get all the fields inside a json object: (for (var key in p) { if (p.hasOwnProperty(key)) { alert(key + " -> " + p[key]); } } (Soruce : Loop through Json object). However there is no way of accessing the JSONfields directly by a index. The only way I see right now, is to create an array, with the function above, get the fieldname by index and then get the value by fieldname. As far as I see it, the p (in our case the JSON file must be an iteratable array to, or else the foreach loop wouldn't work. How can I access this array directly? Or is it some kind of unsorted list? Regards, Stefan

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• Ruby open_id_authentication with Google OpenID

  - by Patrick Daryll Glandien

  I am in my first steps of implementing OpenID in my Rails app. open_id_authentication appeared to be a fairly easy-to-use plugin, which is why I decided to use it. Logging in with my Google account seems to work perfectly, however I do not get the sreg/AX fields that I require. My code is currently as follows: class SessionsController < ApplicationController def new; end def create open_id_authentication end protected def open_id_authentication authenticate_with_open_id(params[:openid_identifier], :required => ["http://axschema.org/contact/email"]) do |result, identity_url, registration| if result.successful? p registration.data @current_user = User.find_by_identity_url(identity_url) if @current_user successful_login else failed_login "Sorry, no user by that identity URL exists (#{identity_url})" end else failed_login result.message end end end private def successful_login session[:user_id] = @current_user.id redirect_to(root_url) end def failed_login(message) flash[:error] = message redirect_to(new_session_url) end end I have already read various discussions about Google OpenID and all only say that you need to require the AX schema instead of the sreg field email, but even when I am doing so (as you can see in the code above), registration.data will remain empty ({}). How do I effectively require the email from most OpenID providers with open_id_authentication?

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• Slow Python HTTP server on localhost

  - by Abiel

  I am experiencing some performance problems when creating a very simple Python HTTP server. The key issue is that performance is varying depending on which client I use to access it, where the server and all clients are being run on the local machine. For instance, a GET request issued from a Python script (urllib2.urlopen('http://localhost/').read()) takes just over a second to complete, which seems slow considering that the server is under no load. Running the GET request from Excel using MSXML2.ServerXMLHTTP also feels slow. However, requesting the data Google Chrome or from RCurl, the curl add-in for R, yields an essentially instantaneous response, which is what I would expect. Adding further to my confusion is that I do not experience any performance problems for any client when I am on my computer at work (the performance problems are on my home computer). Both systems run Python 2.6, although the work computer runs Windows XP instead of 7. Below is my very simple server example, which simply returns 'Hello world' for any get request. from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer class MyHandler(BaseHTTPRequestHandler): def do_GET(self): print("Just received a GET request") self.send_response(200) self.send_header("Content-type", "text/html") self.end_headers() self.wfile.write('Hello world') return def log_request(self, code=None, size=None): print('Request') def log_message(self, format, *args): print('Message') if __name__ == "__main__": try: server = HTTPServer(('localhost', 80), MyHandler) print('Started http server') server.serve_forever() except KeyboardInterrupt: print('^C received, shutting down server') server.socket.close() Note that in MyHandler I override the log_request() and log_message() functions. The reason is that I read that a fully-qualified domain name lookup performed by one of these functions might be a reason for a slow server. Unfortunately setting them to just print a static message did not solve my problem. Also, notice that I have put in a print() statement as the first line of the do_GET() routine in MyHandler. The slowness occurs prior to this message being printed, meaning that none of the stuff that comes after it is causing a delay.

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• FQL query using stream table doesn't accept app access token

  - by tougher

  I've searched stackoverflow all day long to find an answer without luck, so here we go. I'm trying to fetch data from the stream table like this: FQL: SELECT post_id, message, created_time FROM stream WHERE source_id = 131559313586863 URL: http:// graph.facebook.com/fql?q=SELECT+post_id%2C+message%2C+created_time+FROM+stream+WHERE+source_id+%3D+131559313586863&access_token=10669xxxxx74470|PF-7GSdBx0Nxxxxxkdi1KwSQG-w But I get a 400 Bad Request as response with the error message: "An access token is required to request this resource.". I'm fetching an application access token with this url: https:// graph.facebook.com/oauth/access_token?client_id=FACEBOOK_APP_ID&client_secret=FACEBOOK_APP_SECRET&grant_type=client_credentials Facebook state in this blog post that "You will need to pass a valid app or user access token to access this functionality.". Functionality refers to /feed and /posts (the stream table). Futhermore this wiki tells the same story about using the stream table, "From June 3 2011 a token is required to query this table. You can use any application or user token to make the query.". Does anyone see my hopefully obvious flaw? Please note: The profile in the FQL query is public. I need this to run userless though a cronjob. No user interaction is possible. The request works if I replace the app access token with my own user token from https:// developers.facebook.com/tools/explorer Sorry for breaking the URL's. I need more reputation to post more than 2 links :-/

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