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  • Tomcat cookies not working via my ProxyPass VirtualHost

    - by John
    Hi there. I'm having some issues with getting cookies to work when using a ProxyPass to redirect traffic on port 80 to a web-application hosted via Tomcat. My motivation for enabling cookies is to get rid of the "jsessionid=" parameter that is appended to the URLs. I've enabled cookies in my context.xml in META-INF/ for my web application. When I access the webapplication via http://url:8080/webapp it works as expected, the jsessionid parameter is not visible in the URL, instead it's stored in a cookie. When accessing my website via an apache2 virtualhost the cookies doesn't seem to work because now "jsessionid" is being appended to the URLs. How can I solve this issue? Here's my VHost configuration: <VirtualHost *:80 ServerName somedomain.no ServerAlias www.somedomain.no <Proxy * Order deny,allow Allow from all </Proxy ProxyPreserveHost Off ProxyPass / http://localhost:8080/webapp/ ProxyPassReverse / http://localhost:8080/webapp/ ErrorLog /var/log/apache2/somedomain.no.error.log CustomLog /var/log/apache2/somedomain.no.access.log combined </VirtualHost

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  • Nginx A/B testing

    - by Alex
    Hey, I'm trying to do A/B testing and I'm using Nginx fo this purpose. My Nginx config file looks like this: events { worker_connections 1024; } error_log /usr/local/experiments/apps/reddit_test/error.log notice; http { rewrite_log on; server { listen 8081; access_log /usr/local/experiments/apps/reddit_test/access.log combined; location / { if ($remote_addr ~ "[02468]$") { rewrite ^(.+)$ /experiment$1 last; } rewrite ^(.+)$ /main$1 last; } location /main { internal; proxy_pass http://www.reddit.com/r/lisp; } location /experiment { internal; proxy_pass http://www.reddit.com/r/haskell; } } } This is kind of working, but css and js files woon't load. Can anyone tell me what's wrong with this config file or what would be the right way to do it? Thanks, Alex

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  • Size of static libraries generated by XCode

    - by shaft80
    I have a project tree in XCode that looks like this: AppProject depends on ObjcWrapper that in turn depends on PureCppLib. ObjcWrapper and PureCppLib are static library projects. Combined, all sources barely reach 15k lines of code, and, as expected, the size of resulting binary is about 750Kb in release mode and slightly over 1Mb in debug mode. So far, so good. However, ObjcWraper.a and PureCppLib.a are over 6Mb each in either mode. So the first question is why it is so. But more importantly, how can I ensure that those static libs do not include parts or all of the source code? Thanks in advance!

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  • Remove filter attribute after jQuery UI dialog is finished opening

    - by womp
    Using jQuery UI 1.8rc3 combined with the new jquery.effects.fade.js code, I've been able to finally apply fade-in and fade-out effects to opening the UI Dialog widgets. Hooray! $dialog.dialog({ show: { effect: "fade", options: {}, speed: 150 } } This works great - unfortunately, there's the known IE7 & 8 bug where the ClearType gets turned off by the application of an empty filter: style attribute after the fade effect is finished. I have the code to remove the filter attribute, I just can't find a good way to hook it into the event chain. The dialog's "open" and "focus" events are too soon. I need something like a "dialog opening animation is finished" callback. How can I hook up a callback to the end of the opening effect for a dialog?

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  • Singleton again, but with multi-thread and Objective-C

    - by Tonny Xu
    I know Singleton pattern has been discussed so much. But because I'm not fully understand the memory management mechanism in Objective-C, so when I combined Singleton implementation with multithreading, I got a big error and cost me a whole day to resolve it. I had a singleton object, let's call it ObjectX. I declared an object inside ObjectX that will detach a new thread, let's call that object objectWillSpawnNewThread, when I called [[ObjectX sharedInstance].objectWillSpawnNewThread startNewThread]; The new thread could not be executed correctly, and finally I found out that I should not declare the object objectWillSpawnNewThread inside the singleton class. Here are my questions: How does Objective-C allocate static object in the memory? Where does Objective-C allocate them(Main thread stack or somewhere else)? Why would it be failed if we spawn a new thread inside the singleton object? I had searched the Objective-C language [ObjC.pdf] and Objective-C memory management document, maybe I missed something, but I currently I could not find any helpful information.

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  • Can you optimize this code? T-SQL

    - by Yoda
    Essentially I have three fields and I am creating a new one which is the three combined making a mailable address; problem being some fields contain null values and adding myString to a null just produces a null in sql. So this is my code, can anyone make it any cleaner? It's still looking pretty butch! UPDATE [mydb].[dbo].[Account] SET [Billing Street] = CASE WHEN [(Billing Address 1)] is null and [(Billing Address 2)] is null THEN [(Billing Address 3)] WHEN [(Billing Address 1)] is null and [(Billing Address 3)] is null THEN [(Billing Address 2)] WHEN [(Billing Address 2)] is null and [(Billing Address 3)] is null THEN [(Billing Address 1)] WHEN [(Billing Address 1)] is null THEN [(Billing Address 2)] + ' ' + [(Billing Address 3)] WHEN [(Billing Address 2)] is null THEN [(Billing Address 1)] + ' ' + [(Billing Address 3)] WHEN [(Billing Address 3)] is null THEN [(Billing Address 1)] + ' ' + [(Billing Address 2)] ELSE [(Billing Address 1)] + ' ' + [(Billing Address 2)] + ' ' + [(Billing Address 3)] END

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  • Apache2 several sites and configuration question

    - by Hellnar
    Hello I want to host several sites from my VPS via apache2 under Debian. For this I removed the default from sites-enabled and added this under /etc/apache/sites-enabled/www.mysite.com : NameVirtualHost *:80 <VirtualHost *:80> ServerName mysite.com ServerAlias www.mysite.com Alias /media/ /home/myuser/mysite/media/ Alias /admin_media/ /home/myuser/django/Django-1.2/django/contrib/admin/media/ WSGIScriptAlias / /home/myuser/mysite/wsgi.py ErrorLog /home/myuser/mysite/logs/error.log CustomLog /home/myuser/mysite/logs/access.log combined </VirtualHost> After that I removed the default symbolic link from sites-enabled/ via: a2dissite default and added the new one: a2ensite www.mysite.com Still, I get this error: Restarting web server: apache2apache2: apr_sockaddr_info_get() failed for myuser apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName [Sat May 29 11:41:13 2010] [warn] NameVirtualHost *:80 has no VirtualHosts apache2: apr_sockaddr_info_get() failed for myuser apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName [Sat May 29 11:41:13 2010] [warn] NameVirtualHost *:80 has no VirtualHosts . What can be the problem ?

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  • Ilmerge causing dll's to open during build

    - by Niall Collins
    I am using ILMerge as a post build event to combine some dll's into a single dll. It is working and combining the dll's but have this weird issue. As the project builds, the dll's are opened (only external dll's, not project dll's)! And the build wont only progress when I close the application that opens the dll, in this case I have set reflector as the default application for opening dll's. The post build event command I am using is: "..............\External\Tools\ILMerge\2.10.0\ILMerge" /out:"$(ProjectDir)$(OutDir)Combined.dll" "$(TargetPath)" "$(ProjectDir)$(OutDir)Core.dll" "$(ProjectDir)$(OutDir)Resolver.dll" "$(ProjectDir)$(OutDir)AjaxMin.dll" "$(ProjectDir)$(OutDir)Yahoo.Yui.Compressor.dll" "$(ProjectDir)$(OutDir)EcmaScript.NET.modified.dll" Anyone have issues with this?

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  • computing "node closure" of graph with removal

    - by Fakrudeen
    Given a directed graph, the goal is to combine the node with the nodes it is pointing to and come up with minimum number of these [lets give the name] super nodes. The catch is once you combine the nodes you can't use those nodes again. [first node as well as all the combined nodes - that is all the members of one super node] The greedy approach would be to pick the node with maximum out degree and combine that node with nodes it is pointing to and remove all of them. Do this every time with the nodes which are not removed yet from graph. The greedy is O(V), but this won't necessarily output minimum number super nodes. So what is the best algorithm to do this?

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  • Recursion problem in C

    - by jake
    Hi there. I've been trying to solve this problem for a few days now but it seems I haven't grasped the concept of recursion,yet. I have to build a program in C (recursion is a must here but loops are allowed as well) which does the following: The user inputs 2 different strings.For example: String 1 - ABC String 2 - DE The program is supposed to print strings which are combined of the ones the user has entered. the rule is that the inner order of the letters in each string (1&2) must remain. That's the output for string1=ABC & string2=DE ": abcde abdce abdec adbce adbec adebc dabce dabec daebc deabc If anyone could give me a hand here, it would be great. Thanks guys.

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  • StringTokenizer problem of tokenizing

    - by Mr CooL
    String a ="the STRING TOKENIZER CLASS ALLOWS an APPLICATION to BREAK a STRING into TOKENS.  "; StringTokenizer st = new StringTokenizer(a); while (st.hasMoreTokens()){ System.out.println(st.nextToken()); Given above codes, the output is following, the STRING TOKENIZER CLASS ALLOWS an APPLICATION to BREAK a STRING into TOKENS.  My only question is why the "STRING TOKENIZER CLASS" has been combined into one token???????? When I try to run this code, System.out.println("STRING TOKENIZER CLASS".contains(" ")); It printed funny result, FALSE It sound not logical right? I've no idea what went wrong. I found out the reason, the space was not recognized as valid space by Java somehow. But, I don't know how it turned up to be like that from the front processing up to the code that I've posted.

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  • Is it Possible to Query Multiple Databases with WCF Data Services?

    - by Mas
    I have data being inserted into multiple databases with the same schema. The multiple databases exist for performance reasons. I need to create a WCF service that a client can use to query the databases. However from the client's point of view, there is only 1 database. By this I mean when a client performs a query, it should query all databases and return the combined results. I also need to provide the flexibility for the client to define its own queries. Therefore I am looking into WCF Data Services, which provides the very nice functionality for client specified queries. So far, it seems that a DataService can only make a query to a single database. I found no override that would allow me to dispatch queries to multiple databases. Does anyone know if it is possible for a WCF Data Service to query against multiple databases with the same schema?

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  • Hidden features of WPF and XAML?

    - by Sauron
    Here is a large number of hidden features discussed for variety of languages. Now I am curious about some hidden features of XAML and WPF? One I have found is the header click event of a ListView <ListView x:Name='lv' Height="150" GridViewColumnHeader.Click="GridViewColumnHeaderClickedHandler"> The GridViewColumnHeader.Click property is not listed. Some of relevant features so far: Multibinding combined with StringFormat TargetNullValue to bindings TextTrimming property Markup extensions Adding Aero effect to Window Advanced "caption" properties XAML Converters See also: Hidden features of C# Hidden features of Python Hidden features of ASP.NET Hidden features of Perl Hidden features of Java Hidden features of VB.NET Hidden features of PHP Hidden features of Ruby Hidden features of C And So On........

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  • formula for best approximation for center of 2D rotation with small angles

    - by RocketSurgeon
    This is not a homework. I am asking to see if problem is classical (trivial) or non-trivial. It looks simple on a surface, and I hope it is truly a simple problem. Have N points (N = 2) with coordinates Xn, Yn on a surface of 2D solid body. Solid body has some small rotation (below Pi/180) combined with small shifts (below 1% of distance between any 2 points of N). Possibly some small deformation too (<<0.001%) Same N points have new coordinates named XXn, YYn Calculate with best approximation the location of center of rotation as point C with coordinates XXX, YYY. Thank you

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  • translation/rotation of a HUD against a camera using vectors in Euclidian 3D space

    - by Jakob
    i've got 2 points in 3D space: the camera position and the camera lookAt. the camera movement is restricted akin to typical first person shooter games. you can move the cam freely, tilt horizontally and up to 90 degrees vertically, but not roll. so now i want to draw a HUD to the screen, on which i can move the mouse freely, with the position of the cursor correctly translating into 3D space. the easy part was to draw something directly in front of the camera. V0 = camPos; V1 = lookAt; V2 = lookAt-camPos; normalize V2; mutiply V2 according to camera frustum V3 = V0+V2 draw something at V3 now the part i don't get: i could use V3 and add to that the rotations of the cam combined with the x/y of the mouse cursor, somehow, right? that's what i want.

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  • solution on SP and EF & Ria Service

    - by KentZhou
    As EF 4.0 released, more support to SQL server Stored procedure. Complex Type can be generated automatically for result dataset of SP. But complex type not support by Ria Service. When I try to use ria service combined with EF 4.0, I want to get dataset by SP. This result is not mapped to any entity/table. Some sulutions suggested by community are: 1. Create view to map sp result. (but for EF, if there is no ID or primary, can't be map to any entity) 2. Create Entity to map sp result.(for this, you even need to map SP for CRUD even though I don't need CUD on this sp result) Also above solution can't be automated. As Database objects maybe changed with the time, auto update edm will lost above solution. So what's the solution? I want to put data operation back to DB as possible, so that many changes can be done in DB and no need to rebuild .net assemblies(this cause redeploy).

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  • Union of complex polygons

    - by grenade
    Given two polygons: POLYGON((1 0, 1 8, 6 4, 1 0)) POLYGON((4 1, 3 5, 4 9, 9 5, 4 1),(4 5, 5 7, 6 7, 4 4, 4 5)) How can I calculate the union (combined polygon)? Dave's example uses SQL server to produce the union, but I need to accomplish the same in code. I'm looking for a mathematical formula or code example in any language that exposes the actual math. I am attempting to produce maps that combine countries dynamically into regions. I asked a related question here: http://stackoverflow.com/questions/2653812/grouping-geographical-shapes

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  • Whats the significance of named scope in rails?

    - by piemesons
    Before going for details. Question 1:-- Whats the meaning of scope here (ie named scope)? whats the benefits of using named scope? Now:- from agile development with rails book:-- class Order < ActiveRecord::Base named_scope :last_n_days, lambda { |days| {:conditions => ['updated < ?' , days] } } named_scope :checks, :conditions => {:pay_type => :check} end Such a named scope would make finding the last weeks worth of orders a snap. orders = Orders.last_n_days(7) Scopes can also be combined orders = Orders.checks.last_n_days(7) why we are using named_scope here. We can do the same using methods. Whats special thing we got using named_scope.

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  • Why is Magento 1.4 including javascript files by filesystem path?

    - by Josh
    I am in the process of testing a Magento 1.3 site using Magento 1.4. I am seeing very weird and inconsistent behavior. Instead of including the URL of my javascript files, Magento is creating tags with the full filesystem path of the js files, as so: <script type="text/javascript" src="/home/my_username/public_html/js/prototype/prototype.js"></script> I believe this is related to the new "Themes JavaScript and CSS files combined to one file" function. In fact, when I log into the admin and click "Flush JavaScript/CSS Cache", then the first page load is successful, and I see a single JS include similar to: <script type="text/javascript" src="/media/js/5b8cfac152fcb2a5f93ef9571d338c54.js"></script> But subsequent age loads load every single JS file, with the full path names. Which obviously isn't going to work. Anyone have any ideas on what could be wrong or how to fix this issue?

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  • Codeigniter: Combining activeRecord with manual queries?

    - by Industrial
    Hi everybody, I've though a bit about the activerecord vs. manual queries in Codeigniter. ActiveRecord is awesome when it's all about standard queries and holds development time really low. However, when there's a need to add some complexity to the queries, the ActiveRecord gets quite complicated to work with. Sub queries or complex joins gives atleast me a lot of headache. Since the current "$this-db-query" -call immediately executes the set query, it can't be combined with normal activeRecord calls. So, what can I do to combine the two methods? Thanks!

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  • In T-SQL how to display columns for given table name?

    - by salvationishere
    I am trying to list all of the columns from whichever Adventureworks table I choose. What T-sQL statement or stored proc can I execute to see this list of all columns? I want to use my C# web app to input one input parameter = table_name and then get a list of all the column_names as output. Right now I am trying to execute the sp_columns stored proc which works, but I can't get just the one column with select and exec combined. Does anybody know how to do this?

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  • 404 Error using Flash Builder 4 BlazeDS wizard

    - by codeflayer
    Hello again Stackoverflow! My issue this time around is trying to use the new DCD BlazeDS wizard in Flash Builder 4. If I set my project up as a combined Java/Flex app I am unable to connect to the RDS servlet using the wizard. I get a 404 error every time. I'm certain the service is set up correctly since my app can access the exposed java classes and BlazeMonster can see the exposed services. Is anyone else having this issue and if so has anyone found a work-around? I'd very much like to use the code generation features of the wizard for my project. Thanks as always, Codeflayer

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  • Java: versioned data structures?

    - by Jason S
    I have a data structure that is pretty simple (basically a structure containing some arrays and single values), but I need to record the history of the data structure so that I can efficiently get the contents of the data structure at any point in time. Is there a relatively straightforward way to do this? The best way I can think of would be to encapsulate the whole data structure with something that handles all the mutating operations by storing data in functional data structures, and then for each mutation operation caching a copy of the data structure in a Map indexed by time-ordering (e.g. a TreeMap with real time as keys, or a HashMap with a counter of mutation operations combined with one or more indexes stored in TreeMaps mapping real time / tick count / etc. to mutation operations) any suggestions?

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  • SQL Exec T-SQL statement?

    - by salvationishere
    I am trying to list all of the columns from whichever Adventureworks table I choose. What T-sQL statement or stored proc can I execute to see this list of all columns? I want to use my C# web app to input one input parameter = table_name and then get a list of all the column_names as output. Right now I am trying to execute the sp_columns stored proc which works, but I can't get just the one column with select and exec combined. Does anybody know how to do this?

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  • In LaTeX prefer figures on text-heavy pages.

    - by bjarkef
    Hi LaTeX seems to have a preference for placing figures together on a page, and placing surrounding text on a separate page. Can I somehow change that balance a bit, as I prefer figures to break up the text to avoid too black text-heavy pages. Example: \section{Some section} [Half a page of text] \begin{figure} [...] \caption{Figure text 1} \end{figure} [Half a page of text] \begin{figure} [...] \caption{Figure text 2} \end{figure} [More text] So what LaTeX usually does is to stack the two half pages of text on a single page, and the figures on the following page. I believe this really gives a bad balance, and bores the reader. So can I change that somehow? I know about postfixing the \begin{figure} with [ht!], but often it does not really matter. I would like to configure the balancing algorithms in LaTeX to naturally prefer pages with combined figures and text.

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