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  • Escaping an equals sign in DOS batch string replacement command

    - by Alastair
    I need to replace some text in a JNLP file using a DOS batch file to tune it for the local machine. The problem is that the search pattern contains an equals sign which is messing up the string replacement in the batch file. I want to replace the line, <j2se version="1.5" initial-heap-size="100M" max-heap-size="100M"/> with specific settings for the initial and max heap sizes. For example at the moment I have, for /f "tokens=* delims=" %%a in (%filePath%agility.jnlp) do ( set str=%%a set str=!str:initial-heap-size="100M"=initial-heap-size="%min%M"! echo !str!>>%filePath%new.jnlp) but the = in the search pattern is being read as part of the replacement command. How do I escape the equals sign so it is processed as text?

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  • Some solid OOP criticism?

    - by Bubba88
    Hi! I want to ask you to provide me with some articles (maybe books), which you possibly have found very convincing criticising the OOP methodology. I have read some in the WWW on this topic and I didn't really find a 'definitive demotivator'. It's not much about my personal attitude to the OOP, but I really would like to have something constructive, rigorous foundation for any kind of discussion and just abstract thinking. You can post some original research too, but please be very constructive (as my personal request). Thank you very much!

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  • How Do I Use WkHtmlToXSharp in C#

    - by Dizzy49
    I've read a lot about WkHtmlToXSharp (wrapper for wkhtmltopdf) so I downloaded it. The one page that appears to be the only documentation states you only need the wkhtmltosharp.dll, but I can't find it in the file I downloaded. It appears to be several projects, and the thing that looks like a DLL in the Libs/Win64 folder won't load into my project. I'd GREATLY appreciate it if someone could point me to some instructions, and maybe some basic samples. I need to know where the .DLL is, what namespace to use, and general usage syntax to convert a HTML file to PDF. THANK YOU!!

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  • Linq To Sql and identity_insert

    - by Ronnie Overby
    I am trying to do record inserts on a table where the primary key is an Identity field. I have tried calling mycontext.ExecuteCommand("SET identity_insert myTable ON") but this doesn't do any good. I get an error saying that identity_insert is off when I submit changes. How can I turn it ON from the c# code before I submit changes? EDIT I have read that this is because ExecuteCommand's code gets executed in a different session. EDIT 2 Is there any way I can execute some DDL to remove the Identity Specification from my C# code, do the inserts, and then turn Identity Specification back on?

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  • Devart Oracle Cross Apply Exception

    - by Murilo Amaru Gomes
    I´m running a problem where in one machine the code works and another don´t. Apparently we´re using the same Devart dotConnect for Oracle version (6.80.325.0). The problem is when we have a subquery in the LINQ and we get Cross Apply Not Supported for Oracle. public IQueryable<GE_MENUAPLICACAO> RetornaMenusNegadosParaUsuario2(int seqUsuario, int nroEmpresa) { return from usuarioPerm in entidadesConsinco.GE_USUARIOPERMISSAO from menu in usuarioPerm.GE_ITENSAPP.GE_APLICACAO.GE_MENUAPLICACAOs select menu; } I read a lot about it, and about subqueries, but I really can´t understand why it´s OK in some machines and not OK and another. Did I missed some fix in the installation? Thanks.

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  • SAAS architecture and salesforce database architecture

    - by Farax
    Hello all, I am architecting a software project and I want to create a SAAS (Software As a service) one. I want to model my application along the lines of Salesforce. I really like there customization features but I am not sure how they really go about it. I read that they create an ID for every field that is required and then store the corresponding data too. Can anyone guide me as to how this is possible. For example, if I want to store an employee record. 2 fields (firstname, lastname) are already given and the user adds a third field(say DOB), how is data going to be stored? I would also appreciate if someone could give me some resources to practical examples of implementing a SAAS architecture. Thanks

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  • MP4 plays on Safari 4 (desktop) but not on Safari Mobile (iphone)

    - by deb
    I'm encoding the video with ffmpeg and displaying it using the HTML 5 video tag. It works fine on Firefox (i'm also providing a ogg version) and Safari 4. However, when I try to open it on the iphone I get a "Cannot Play Movie" error. Here is the ffmpeg command I'm using: ffmpeg -y -i movie.mov -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 -vpre hq -level 41 -crf 20 -bufsize 20000k -maxrate 1500k -g 250 -s 320X200 -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -flags2 +dct8x8+bpyramid -me_method umh -subq 7 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 -refs 6 -deblockalpha 0 -deblockbeta 0 movie.mp4 I reduced the maxrate to 1500 because I read that if the bit rate is too high the iphone won't play the video, but still didn't work. I don't know where else to look... any ideas? Thanks in advance

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  • Google Reader API HTTP Response parsing (Objective C)

    - by JustinXXVII
    Using the API, trying to get items in a specific feed returns this: {“direction”:”ltr”,”id”:”feed/http://arstechnica.com/index.rssx”,”title”:”Ars Technica”,”description”:”The Art of Technology”,”self”:[{"href":"http://www.google.com/reader/api/0/stream/contents/feed/http://arstechnica.com/index.rssx?ot\u003d1273193172856169\u0026r\u003dn\u0026xt\u003duser/-/state/com.google/read\u0026n\u003d4\u0026ck\u003d1273193873\u0026client\u003diPadReader"}],”alternate”:[{"href":"http://arstechnica.com/index.php","type":"text/html"}],”updated”:1273193873,”items”:[]} They look like key/value pairs but it’s plain text with UTF8 String encoding and won’t encode into a dictionary. I’m using Objective-C and I’m not sure where to go from here. So far I’ve been able to parse the XML response for unread items, but parsing the plain-text doesn’t look feasible. What is your practice?

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  • ASP.NET MVC DropDownList Validation

    - by Andrew Florko
    Hello everybody, I have [DisplayName("Country")] public List<SelectListItem> Countries { get; set; } property in Model class for DropDownList. When I try to check if the ModelState.IsValid on form postback it's always false & error for Countries tells "Can't convert [value] to SelectListItem" or some of a kind. I figured out there is no straight-forward mapping for drop down selected value (looks like I'll have to read value from Form value collection), but how can I ignore binding and validation for List property? I just want to make ModelState.IsValid attribute to be true if all the other fields are populated properly. Thank you in advance

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  • Soapui & Xpath : Problem with assertion for a simple node

    - by mada
    Hi, i'm currently using SoapUI Free edition 3.2-beta 2. And i have a weird problem with a Xpath assertion: I have this in response: (...) And i'm using this xpath to assert that the "niveau" with id='2' is in the response: Xpath expression; //*:niveau[@id='2'] & the expected result is : but i have this error message: XPathContains comparison failed, expecting [ ], actual was [null] but if i try this : exitsts(//*:niveau[@id='2']) & the expected result is : True it works !!? But this syntax is quite difficult to read & lmaintain & i would like to use the 1st syntax (i ve tried to ignore namespace, add them.. stil doesnt work). Any idea ? Regards

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  • Reading EventLog C# Errors

    - by Robert
    I have this code in my ASP.NET application written in C# that is trying to read the eventlog, but it returns an error. EventLog aLog = new EventLog(); aLog.Log = "Application"; aLog.MachineName = "."; // Local machine foreach (EventLogEntry entry in aLog.Entries) { if (entry.Source.Equals("tvNZB")) Label_log.Text += "<p>" + entry.Message; } One of the entries it returns is "The description for Event ID '0' in Source 'tvNZB' cannot be found. The local computer may not have the necessary registry information or message DLL files to display the message, or you may not have permission to access them. The following information is part of the event:'Service started successfully.'" I only want the 'Service started successfully'. Any ideas?

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  • com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Unknown command

    - by adisembiring
    Hi .. I'm trying to create datasource for connection pooling mysql database in Websphere Application Server. I've set the JDBC Provider, I set the Implementation class name : com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource my mysql driver 5.1.6. but I got this error while I try to connect the datasource: The test connection operation failed for data source btn_itb_ds on server server1 at node qnode with the following exception: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Unknown command. View JVM logs for further details. I have read this http://bugs.mysql.com/bug.php?id=38388 trouble shooting. But they just suggest to upgrade mysql driver version 5.1.X and I have do that. but I've got the same error.

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  • CSRF (Cross-site request forgery) attack example and prevention in PHP

    - by Saif Bechan
    I have an website where people can place a vote like this: http://mysite.com/vote/25 This will place a vote on item 25. I want to only make this available for registered users, and only if they want to do this. Now I know when someone is busy on the website, and someone gives them a link like this: http://mysite.com/vote/30 then the vote will be places for him on the item without him wanting to do this. I have read the explanation on the OWASP website, but i don't really understand it Is this an example of CSFR, and how can I prevent this. The best thing i can think off is adding something to the link like a hash. But this will be quite irritating to put something on the end of all the links. Is there no other way of doing this. Another thing can someone maybe give me some other example of this, because the website seems fairly fugue to me.

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  • 401 Unauthorized using oauth with twitter on iPhone

    - by menkel
    I use Twitter-OAuth-iPhone. http://github.com/bengottlieb/Twitter-OAuth-iPhone/ when i try to login on twitte, I received an error 401 i received the delegate call for - (void) OAuthTwitterController: (SA_OAuthTwitterController *) controller authenticatedWithUsername: (NSString *) username { but when i try to send a tweet just after [_engine sendUpdate: [NSString stringWithFormat:@"Hello World"]]; i received an error 401 failed with error: Error Domain=HTTP Code=401 "Operation could not be completed. (HTTP error 401.)" i have check my twitter application setting Type: Client Default Access type: Read & Write

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  • Determing software estimates and tracking past estimates

    - by Casey
    I know that this probably has as many answers as users here on SO, but software estimation always seemed like an esoteric science. Software developers don't have a magic book to refer to as exist in many other industries. I've been spending the last couple of days working on putting together some estimates for a bit of work that I am proposing for a freelance project that I am working on and am having trouble getting it down. I'm not experienced with any real software estimation practices and am trying to go from the gut based on my experience but also trying to be a little loose (not too loose though) on the estimates to leave me a bit of room to work. I read this blog entry http://blogs.popart.com/2007/07/what-scotty-from-star-trek-can-teach-us-about-managing-expectations/ that was linked to from SO and would like to start tracking my estimates at work as well even though I'm not really required to create estimates there. What tools or techniques would you recommend? Also, how much padding do you usually add in to a time estimate?

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  • Ant Copy Task: Failed to copy due to java.io.FileNotFoundException

    - by rfkrocktk
    I'm trying to compile a Flex application in Ant (no problems here, I can do it fine). When I try to publish the contents of the project to a Windows network drive (known as "Z:\" on my system), I get the following LAME exception thrown by Java/Ant: BUILD FAILED C:\workspace\bkeller\build.xml:42: Failed to copy C:\workspace\bkeller\web\assets\text\biography.html to Z:\web\bkeller\assets\text\biography.html due to java.io.FileNotFoundException Z:\web\bkeller\assets\text\biography.html (The system cannot find the file specified) Which kind of sucks. I can't find any way to get rid of this problem and it's pretty crucial to my project that I get this working. I know for sure that I have read/write/execute permissions on the network drive, I can create/edit/delete files on the drive just fine through Windows explorer. Drive Z is a network mount to virtualbox, allowing me to get access to my host OS, Ubuntu. I've double checked that it has write permissions. Any ideas?

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  • chat application: pubsubhub vs xmpp

    - by sofia
    I'm unsure on the best stack to build a chat application. Currently I'm thinking of two main options: facebook tornado cons: does not use the main chat protocol xmpp but pubsubhubbub pros: i really like its simplicity for development (webserver + webframework); pubsubhubbub also seems simpler as a protocol than xmpp; and i know python xmpp + bosch, punjab, ejabberd cons: don't know erlang; overall seems a bit harder to develop pros: uses xmpp protocol The chat app will need to have the following: Private messages Public rooms Private rooms Chat history for rooms (not forever, just the last n messages) html embedding url to chat room Both options seem scalable so that's not really my worry (we're thinking of running the app in amazon's ec2 as well). I know there's a project that builds a xmpp server using tornado but it's not ready for production use and our deadline isn't that big. Basically my main worry is ease of development vs somehow regretting later using pubsubhubbub to develop a chat app but I read somewhere that PubSubHubbub might eventually replace XMPP as REST replaced SOAP - so what do you think?

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  • How do I parse JSON from a Java HTTPResponse?

    - by Joe Ludwig
    I have an HttpResponse object for a web request I just made. The response is in the JSON format, so I need to parse it. I can do it in an absurdly complex way, but it seems like there must be a better way. Is this really the best I can do? HttpResponse response; // some response object Reader in = new BufferedReader( new InputStreamReader(response.getEntity().getContent(), "UTF-8")); StringBuilder builder= new StringBuilder(); char[] buf = new char[1000]; int l = 0; while (l >= 0) { builder.append(buf, 0, l); l = in.read(buf); } JSONTokener tokener = new JSONTokener( builder.toString() ); JSONArray finalResult = new JSONArray( tokener ); I'm on Android if that makes any difference.

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  • object of type 'closure' is not subsettable - contradiction?

    - by Alex
    I'm writing a function to produce time series plots of stock prices. However, I'm getting the following error "Error in df[, 7] : object of type 'closure' is not subsettable" Here's an example of the function: plot.prices <- function(df) { require(ggplot2) g <- ggplot(df, aes(x= as.Date(Date, format= "%Y-%m-%d"), y= df[, 7])) + geom_point(size=1) # ... code not shown... g } And example data: spy <- read.csv(file= 'http://ichart.finance.yahoo.com/table.csv?s=SPY&d=11&e=1&f=2012&g=d&a=0&b=29&c=1993&ignore=.csv', header= T) plot.prices(spy) # produces error ggplot(spy, aes(x= as.Date(Date, format= "%Y-%m-%d"), y= spy[, 7])) + geom_point(size=1) ## does not produce error As you can see, the code is identical. I get an error if the call to ggplot() is INSIDE the function but not if the call to ggplot() is OUTSIDE the function. Anyone have any idea why the seeming contradiction?

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  • C# Sleep for 500 milliseconds

    - by ikurtz
    could you please tell me how do i go about pausing my program for 500 milliseconds and then continue? i read thread.sleep(50) is not good as it holds up the GUI thread. using a timer it fires a callback .. i just want to wait 500 and then continue to the next statement. please advise. EDIT: i need to display a status bar message for 500 and then update the message with a different one. sorry i meant 500 not 50.

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  • What resolution should my Android splash screens be?

    - by Dan Fabulich
    I'm creating a splash screen that will display while my Android application loads. I'd like to create it at the correct size so Android won't auto-scale it up or down to fit the screen. But there are at least three important screen sizes I care about: 320x480, 480x854 (Droid), and 480x800 (Nexus One). I've read the documentation on supporting multiple screen sizes, but I still don't see how I'm supposed to configure different splash screens for Droid/Nexus one (they're both "hdpi" resources as far as Android is concerned), and I don't know exactly how large my splash screen should be in any case. (How tall is the OS title bar/menu in Droid? N1?) What size should I make these images, and how do I tell Android to use the correct size on a given screen?

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  • Cygwin socket & thread & other programming issues (some question about Cygwin)

    - by SjB
    I have some question about cygwin : Can I use Cygwin develop socket based code? Does Cygwin have read() and write() functions that work with file descriptors? Can I use Pthread library in Cygwin? Does code that compiles in Cygwin also compile in Linux without any change or with little change? Will an executable file that built by Cygwin run in Linux ? Why does Cygwin not need the linker option -lpthread when I use pthread library? why in #include <iostream> don't I need to use using namespace std; ? Can I work with QT in Cygwin? If so, How?

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  • Delphi 2010 Error Insight incorrectly flags "Undeclared Identifier"

    - by user257188
    In D2010, Error Insight is incorrectly underlining in red types like "TOpenDialog" (even though my unit and project's uses both include Dialogs). Also, in my method TMyFrame.Foo, it fails the same way by flagging a reference to a VCL component in my TMyFrame -- even though Foo and the component are both part of TMyFrame. SO suggested I read several threads on this subject. One mentions a D2009 fix for this. Is there a D2010 fix? Other postings have suggested that Error Insight yields too many false alarms and should just be turned off. Any suggestions?

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  • SQL Server deadlocks between select/update or multiple selects

    - by RobW
    All of the documentation on SQL Server deadlocks talks about the scenario in which operation 1 locks resource A then attempts to access resource B and operation 2 locks resource B and attempts to access resource A. However, I quite often see deadlocks between a select and an update or even between multiple selects in some of our busy applications. I find some of the finer points of the deadlock trace output pretty impenetrable but I would really just like to understand what can cause a deadlock between two single operations. Surely if a select has a read lock the update should just wait before obtaining an exclusive lock and vice versa? This is happening on SQL Server 2005 not that I think this makes a difference.

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  • Rsync on Windows - Socket operation on non-socket

    - by TLS
    I get the following error when trying to run the latest Cygwin version of rsync in Windows XP SP2. The error occurs for attempts at both local syncs (that is: source and destination on the local harddisk only) and remote syncs (using "-e ssh" from the openssh package). Any advice on how to fix/workaround it? bash-3.2$ rsync -a dir1 dir2 rsync: Failed to dup/close: Socket operation on non-socket (108) rsync error: error in IPC code (code 14) at /home/lapo/packaging/tmp/rsync-2.6.9/pipe.c(143) [receiver=2.6.9] rsync: read error: Connection reset by peer (104) rsync error: error in IPC code (code 14) at /home/lapo/packaging/tmp/rsync-2.6.9/io.c(604) [sender=2.6.9]

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