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Articles indexed Wednesday April 28 2010

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  • How to merge 2 XML streams in Java by XSLT

    - by user327933
    I'd like to merge 2 XML streams (strings) in Java, necessarily by XSLT (that I could change the transformation), but the problem is that the XMLs come as a string. There are many examples, but through the files. Can this be done without saving them in files? Thanks.

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  • Can the Perl compiler tell me if I have an unchecked exception in my code?

    - by Konerak
    Is there a way in Perl to declare that a method can throw an error (or die)? EDIT: What interests me the most is a way to get the compiler or IDE to tell me I have an unchecked exception somewhere in my code. I always loved how in Java, a method could handle an Exception and/or throw it. The method signature allows to put "throws MyException", so a good IDE/compiler would know that if you use said method somewhere in your code, you'd have to check for the Exception or declare your function to "throws" the Exception further. I'm unable to find something alike in Perl. A collegue of mine wrote a method which "dies" on incorrect input, but I forget to eval-if($@) it... offcourse the error was only discovered while a user was running the application. (offcourse I doubt if there is any existing IDE that could find these kind of things for Perl, but atleast perl -cw should be able to, no?)

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  • Java static method parameters

    - by Blitzkr1eg
    Why does the following code return 100 100 1 1 1 and not 100 1 1 1 1 ? public class Hotel { private int roomNr; public Hotel(int roomNr) { this.roomNr = roomNr; } public int getRoomNr() { return this.roomNr; } static Hotel doStuff(Hotel hotel) { hotel = new Hotel(1); return hotel; } public static void main(String args[]) { Hotel h1 = new Hotel(100); System.out.print(h1.getRoomNr() + " "); Hotel h2 = doStuff(h1); System.out.print(h1.getRoomNr() + " "); System.out.print(h2.getRoomNr() + " "); h1 = doStuff(h2); System.out.print(h1.getRoomNr() + " "); System.out.print(h2.getRoomNr() + " "); } } Why does it appear to pass Hotel by-value to doStuff() ?

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  • How can I run a command on a remote machine with Perl?

    - by Bharath Kumar
    I'm using following code to connect to a remote machine and try to execute one simple command on remote machine. cat tt.pl #!/usr/bin/perl #use strict; use warnings; use Net::Telnet; $telnet = new Net::Telnet ( Timeout=>2, Errmode=>'die'); $telnet->open('172.168.12.58'); $telnet->waitfor('/login:\s*/'); $telnet->print('admin'); $telnet->waitfor('/password:\s*/'); $telnet->print('Blue'); #$telnet->cmd('ver > C:\\log.txt'); $telnet->cmd('mkdir gy'); You have new mail in /var/spool/mail/root [root@localhost]# But when I'm executing this script it is throwing error messages [root@localhost]# perl tt.pl command timed-out at tt.pl line 12 [root@localhost]# Please help me in this

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  • Strange pattern matching with functions instancing Show

    - by Sean D
    So I'm writing a program which returns a procedure for some given arithmetic problem, so I wanted to instance a couple of functions to Show so that I can print the same expression I evaluate when I test. The trouble is that the given code matches (-) to the first line when it should fall to the second. {-# OPTIONS_GHC -XFlexibleInstances #-} instance Show (t -> t-> t) where show (+) = "plus" show (-) = "minus" main = print [(+),(-)] returns [plus,plus] Am I just committing a motal sin printing functions in the first place or is there some way I can get it to match properly? edit:I realise I am getting the following warning: Warning: Pattern match(es) are overlapped In the definition of `show': show - = ... I still don't know why it overlaps, or how to stop it.

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  • Authentication Problem - not recognizing 'else' - Ruby on rails...

    - by bgadoci
    I can't seem to figure out what I am doing wrong here. I have implemented the Super Simple Authentication from Ryan Bates tutorial and while the login portion is functioning correctly, I can't get an error message and redirect to happen correctly for a bad login. Ryan Bates admits in his comments he left this out but can't seem to implement his recommendation. Basically what is happening is that when someone logs in correctly it works. When a bad password is entered it does the same redirect and flashes 'successfully logged in' thought they are not. The admin links do not show (which is correct and are the links protected by the <% if admin? %) but I need it to say 'failed login' and redirect to login path. Here is my code: SessionsController class SessionsController < ApplicationController def create if session[:password] = params[:password] flash[:notice] = 'Successfully logged in' redirect_to posts_path else flash[:notice] = "whoops" redirect_to login_path end end def destroy reset_session flash[:notice] = 'Successfully logged out' redirect_to posts_path end end ApplicationController class ApplicationController < ActionController::Base helper_method :admin? protected def authorize unless admin? flash[:error] = "unauthorized request" redirect_to posts_path false end end def admin? session[:password] == "123456" end helper :all # include all helpers, all the time protect_from_forgery # See ActionController::RequestForgeryProtection for details # end

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  • View controllers inside tab bar controller not auto-rotating

    - by Padawan
    In an iPad app, I have five regular view controllers (not navigation controllers or anything like that) inside a tab bar controller. The tab bar controller is just a plain UITabBarController declared in the app delegate. All the view controllers return YES in the shouldAutorotateToInterfaceOrientation method. On both the simulator and device, on rotation, the tab bar rotates properly but the currently selected view controller (call it A) does not. If I switch to another view controller B and then back to A (without rotating the device again), A appears correctly rotated. This happens with any of the five view controllers Why doesn't the currently selected view controller rotate and how do I fix it? Thanks.

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  • SQL Query to find duplicates not returning any results

    - by TheDudeAbides
    I know there are duplicate account numbers in this table, but this query returns no results. SELECT [CARD NUMBER],[CUSTOMER NAME],[ACCT NBR 1],[ACCT NBR 2], COUNT([ACCT NBR 1]) AS NumOccurences FROM DebitCardData.dbo.['ATM Checking Accts - Active$'] GROUP BY [CARD NUMBER],[CUSTOMER NAME],[ACCT NBR 1],[ACCT NBR 2] HAVING (COUNT([ACCT NBR 1])1)

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  • I need a 3ds loader for opengl

    - by Shaza
    Hey, I have an opengl project with C++, and I need to load like 10 3ds objects in my scene with their texture on, but unfortunatly the loader I'm using now is causing memory leakage, I knew that when my scene freezed after running the project by one min, so can you suggest a 3ds loader which can be very effective in loading a big number of 3ds objects??

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  • Why can't Perl's DBD::DB2 find dbivport.h during installation?

    - by Liju Mathew
    We are using a Perl utility to dump data from DB2 database. We installed DBI package and it is asking for DBD package also. We dont have root access and when we try to install DBD package we are getting the following error: ERROR BUILDING DB2.pm [lijumathew@intblade03 DBD-DB2-1.78]$ make make[1]: Entering directory '/home/lijumathew/lperl/perlsrc/DBD-DB2-1.78/Constants' gcc -c -I"/db2/db2tf1/sqllib/include" -D_REENTRANT -D_GNU_SOURCE -DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -O2 -g -pipe -m32 -march=i386 -mtune=pentium4 -DVERSION=\"1.78\" -DXS_VERSION=\"1.78\" -fPIC "-I/usr/lib/perl5/5.8.5/i386-linux-thread-multi/CORE" Constants.c Running Mkbootstrap for DBD::DB2::Constants () chmod 644 Constants.bs rm -f ../blib/arch/auto/DBD/DB2/Constants/Constants.so gcc -shared -L/usr/local/lib Constants.o -o ../blib/arch/auto/DBD/DB2/Constants/Constants.so chmod 755 ../blib/arch/auto/DBD/DB2/Constants/Constants.so cp Constants.bs ../blib/arch/auto/DBD/DB2/Constants/Constants.bs chmod 644 ../blib/arch/auto/DBD/DB2/Constants/Constants.bs make[1]: Leaving directory `/home/lijumathew/lperl/perlsrc/DBD-DB2-1.78/Constants' gcc -c -I"/db2/db2tf1/sqllib/include" -I"/usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/auto/DBI" -I"/usr/lib/perl5/5.8.5/i386-linux-thread-multi/auto/DBI" -I"/usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi/auto/DBI" -I"/usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/auto/DBI" -D_REENTRANT -D_GNU_SOURCE -DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -O2 -g -pipe -m32 -march=i386 -mtune=pentium4 -DVERSION=\"1.78\" -DXS_VERSION=\"1.78\" -fPIC "-I/usr/lib/perl5/5.8.5/i386-linux-thread-multi/CORE" DB2.c In file included from DB2.h:22, from DB2.xs:7: dbdimp.h:10:22: dbivport.h: No such file or directory make: *** [DB2.o] Error 1 How do we fix this? Do we need root access to resolve this?

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  • Use jquery ':contains' to find specific javascript within a span

    - by Rob
    This is my first time here, I hope that this is clear. So i will have code similar to this this. <span class="mediaSource ui-draggable" id="purchsePlay7915504"> <a href="" onclick="return popup_window(this, 'MediaView', 850, 680)" class="control" enter code hereid="GenericLink"></a> <img id="Any_71" alt="Media Source" src="images/9672web.gif" class="mediaStationIcons mediaWin"/> <img class="player" alt="Media Source" src="images/playmedia.gif" style="display: none;"/> </span> The href portion is generated on the backend, and I have no access to it. I need to modify some existing jquery code to do something based on what the 'onclick' function is(there are different ones e.g. popup_window1,popup_window2 etc.) . I tried something like this: $('.segmentLeft span.mediaSource').click(function(){ if ($('span:contains("popup_window")').length > 0) { do something } }); but it does not seem to work.

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  • Getting RPXNow and Facebook Open Graph to Play Nicely

    - by ramon.tayag
    A requirement to use the RPXNow is to set your Facebook application's connect url to http://mydomain.rpxnow.com. I was just trying to implement Facebook's Open Graph and I see that it tells you to set the Base Domain to the domain that will contain the app_id. However, Facebook does not allow these two domains to look different. When I try to set the base url to mydomain.com, I get this error: Validation failed. Base Domain is not valid. Connect URL must be derived from your Base Domain. Should I create two apps - one for use with RPXNow, and another for use with Open Graph? If not, what should I do? Thanks

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  • C# can I lock a method parameter?

    - by 5YrsLaterDBA
    We have a class variable ArrayList binaryScanData in a class. In all methods having access to it, we put lock(binaryScanData) on it because it is shared. Now we want to move one of those methods out to another util class to make it a static method. We will pass that binaryScanData into the method like this: public static void convertAndSaveRawData(ref MemoryStream output, ref ArrayList binaryScanData) Our questions are followed: how can we sychoronize that binaryScanData? can we do the same as it is originally? ref is necessary? It will only be read in that convertAndSaveRawData method.

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  • Image gets slightly erased on SWT/Windows

    - by zvikico
    I have an Eclipse plugin which includes a view. The view has several icons in the toolbar. I'm experiencing a very strange problem: on Windows, in some occasions (after prolonged use), one of the icons gets slightly erased. This does not happen on other platforms. This looks like a memory leak or some other resource misuse, but I just can't figure out where. The rest of the icons, which are initialized and used in the exact same manner are not affected. I tried working with Sleak, but I really don't see anything out of the ordinary. Any help would be appreciated.

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  • Can I force MySql table name case sensitivity on file systems that aren't case sensitive

    - by Brian Deacon
    So our target environment is linux, making mysql case-sensitive by default. I am aware that we can make our linux environment not case sensitive with the lower_case_table_names variable, but we would rather not. We have a few times been bitten with a case mismatch because our dev rigs are OSX, and mysql is not case sensitive there. Is there a way we can force table names to be case sensitive on my OSX install of MySql (5.0.83 if that matters) so that we catch a table name case mismatch prior to deploying to the integration servers running on linux?

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  • WinForms button position - not aligned as it should

    - by Zka
    Adding some gui modifications and I want to have a button which is 10pixels away from the forms left and right border. With this code the right border of the button is around 20-30 pixel outside the form window. Why is that? How can I position my button to be exactly 10pixels away from the form borders ? int margin = 10; meny1 = new Button(); meny1.Top = 50; meny1.Left = margin; meny1.Size = new Size(this.Width - (2*margin), 30);

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  • javascript var declaration within loop

    - by Trouts
    hello, /*Test scope problem*/ for(var i=1; i<3; i++){ //declare variables var no = i; //verify no alert('setting '+no); //timeout to recheck setTimeout(function(){ alert('test '+no); }, 500); } it alerts "setting 1" and "setting 2" as expected, but after the timeout it outputs "test 2" twice - for some reason the variable "no" is not reset after the first loop... i've found only an "ugly" workaround... /*Test scope problem*/ var func=function(no){ //verify no alert('setting '+no); //timeout to recheck setTimeout(function(){ alert('test '+no); }, 500); } for(var i=1; i<3; i++){ func(i); } Any ideas on how to workaround this problem in a more direct way? or is this the only way?

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  • Microsoft Silverlight 4 Data and Services Cookbook &ndash; Book Review (sort of)

    - by Jim Duffy
    I just received my copy of the Microsoft Silverlight 4 Data and Services Cookbook, co-authored by fellow Microsoft Regional Director, Gill Cleeren, and at first glance I like what I see. I’ve always been a fan of the “cookbook” approach to technical books because they are problem/solution oriented. Often developers need solutions to solve specific questions like “how do I send email from within my .NET application” and so on, and yes, that was a blatant plug to my article explaining how to accomplish just that, but I digress. :-) I also enjoy the cookbook approach because you can just start flipping pages and randomly stop somewhere and see what nugget of information is staring up at you from the page. Anyway, what I like about this book is that it focuses on a specific area of Silverlight development, accessing data and services.  The book is broken down into the following chapters: Chapter 1: Learning the Nuts and Bolts of Silverlight 4 Chapter 2: An Introduction to Data Binding Chapter 3: Advanced Data Binding Chapter 4: The Data Grid Chapter 5: The DataForm Chapter 6: Talking to Services Chapter 7: Talking to WCF and ASMX Services Chapter 8: Talking to REST and WCF Data Services Chapter 9: Talking to WCF RIA Services Chapter 10: Converting Your Existing Applications to Use Silverlight As you can see this book is all about working with Silverlight 4 and data. I’m looking forward to taking a closer look at it. Have a day. :-|

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  • Windows Server 2008 small business server 64-Bit Vmware Server 2 IIS 7 HTTP Error 503. The service i

    - by deeztech69
    Hello, I've tried to install vmware server 2 on a small business server 2008 host and IIS 7 stopped working. Everytime I tried to access any website on the server including OWA I get HTTP Error 503. The service is unavailable. I've tried to restart the IIS services and websites with no luck. Removed vmware server and the problem persists. There are no errors in the application logs concerning IIS or anything related. I'm stumped. Does anyone have an idea what's happenning here and how to fix it?

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  • Changing Internet connection on ISA Server 2000

    - by garyb32234234
    Hi We are getting a new internet connection installed and will need to unplug the old one and connect this to our ISA Server 2000. Will this be a simple swap out job? We will be given a new ip, which i know i will have to enter into the external network card TCP/IP page. I will also be given the default gateway to enter. The ISP engineer said we may have to reset the ARP? cache, if we dont know how we will have to reset the ISA server? Has anyone any experience? The current connection is with the same ISP but it was owned by the business park were we are located and they linked up an ethernet port to what i assume is their own router. Hope you can help, i know that ISA 2000 is somewhat less easy to use than the newer versions.

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  • Cannot log on to a remote server using rdp from windows 7 machine when I am remotley connected to th

    - by Gary
    Bear withe me, here is my set up. I use my 27" iMac 3.06GHz Core 2 Duo 4GB Ram to connect to my work desktop running Windows 7. From there I can administer other remote servers. Here is the problem. Using the Remote Desktop Client on my Mac I can connect to my work machine no problem. But when I then use the work machine to open a remote desktop session with another Windows server (usually SBS 2003 but applies to all) I get the log in prompt, I enter the user name password ensure i'm connecting to the domain, but it wont log me in. The error message is the same, as though I had typed the wrong password (i know this is not the case). Does anyone have a solution? Thanks in advance. Gary

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