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• Uses of Erlang in Telecom

  - by user94154

  I'm a web developer and a college student majoring in telecommunications. This means I'm decent at programming and I know a little about telecom networks (at a high, non-technical level). I keep reading that Erlang is used all over the telecom industry (supposedly for its performance). I'm wondering if there's anyway I can combine my programming skills with my telecommunications major with Erlang. Is most of the Erlang/telecom stuff closed source? Are there any open source telecom projects written Erlang? UPDATE: sipwiz's comment makes me think in terms of a question larger than "uses of Erlang". How can I leverage a high-level understanding of telecom networks and the telecom regulatory environment with programming. I hope this hasn't veered too off-topic for SO.

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• Update configSource of XML element in web.config using Powershell by passing in Parameters

  - by Howard

  I am trying to figure out a way to update my web.config for different environments by updating the configSource for the appSettings element in the web.config. Here are the way I know how to do it. $xml.get_DocumentElement().appSettings.configSource = $replaced_test The problem is that I want one base script where I can pass in different nodes to the script that I want to change and update but I am not sure how to do it. For example, I want to be able to call a powershell script like this changeWebConfig.ps1 nodeToChange newValueofNode I hope this was clear enough. This is the code I have now. $webConfigPath = "C:\web.config" # Get the content of the config file and cast it to XML $xml = [xml](get-content $webConfigPath) #this was the trick I had been looking for $root = $xml.get_DocumentElement()."system.serviceModel".client.configSource = $replace # Save it $xml.Save($webConfigPath)

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• highlighting non-ascii text

  - by non-techie

  As a non-techie, I would really appreciate your help on this. I have some files (html) that need to be in pure ascii form to be properly processed. Since these files are produced by humans, every so often non-ascii characters sneak in. Often it is a stray " (curled variety) or something similar that is difficult to find and need to be removed. I have found text editors (eg. textmate) that can strip out all non-ascii characters, but I need to find one that can highlight where they are, rather than remove them (as I need to remove them from the source and not the html file). I hope this makes sense and appreciate any assistance you can provide. Thanks!

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• How do I pass argument from an activity to another in Workflow 4

  - by Jimmy Engtröm

  Hi I have created an Activity (CodeActivity) that retrieves the temperature where I live. I wan't to add that activity to a workflow and connect it to an if statement/activity that can based on my temperature outargument do different things. But I can't seem to find how to access the outargument from my temperature-activity. This is my first Windows Workflow 4 project so perhaps I'm attacking this in the wrong way. I have: public OutArgument Degrees { get; set; } But how do I access it? I have found tutorials how to get the data when running the activity (only one) but not as part of a workflow. Hope my question makes sence. /Jimmy

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• Custom error handling Asp .Net

  - by lidermin

  Hi, I have a doubt: On my web application, I had configured my web.config file to set customerrors to ON, so here it is: <customErrors mode="On" defaultRedirect="Error.aspx"> <error statusCode="403" redirect="Error.aspx" /> <error statusCode="404" redirect="Error.aspx" /> </customErrors> For explaining propouses I only captured the 403 and 404 error (and the defaultRedirect obviouly). But I would like to get more details of the error on the page: Error.aspx somehow; but not creating each page for each kind of error. Is there a way to include certain code on my error page (Error.aspx) to get the detail of what raised that error?. Hope myself clear. Thanks PD. I'm using C#.

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• Custom error handling Asp .Net

  - by lidermin

  Hi, I have a doubt: On my web application, I had configured my web.config file to set customerrors to ON, so here it is: <customErrors mode="On" defaultRedirect="Error.aspx"> <error statusCode="403" redirect="Error.aspx" /> <error statusCode="404" redirect="Error.aspx" /> </customErrors> For explaining propouses I only captured the 403 and 404 error (and the defaultRedirect obviouly). But I would like to get more details of the error on the page: Error.aspx somehow; but not creating each page for each kind of error. Is there a way to include certain code on my error page (Error.aspx) to get the detail of what raised that error?. Hope myself clear. Thanks PD. I'm using C#.

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• merging two duplicate contacts/CfoldFusion

  - by jil

  having to do with data integrity - I maintain a coldfusion database at a small shop that keeps addresses of different contacts. These contacts sometimes contain notes in them. When you are merging two duplicate contacts, one may be created in 2002 and one in 2008. If the contact in 2002 has notes prior to 2008, my question would be does it matter if you merge these contacts and keep the 2008 contact's ID number? Would that affect the data integrity or create any sort of issues with the notes earlier than 2008? I hope I've accurately described my scenario, as I am not familiar with the proper technical terms. I really appreciate the help sir!

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• Code Golf Christmas Edition: How to print out a Christmas tree of height N

  - by TheSoftwareJedi

  Given a number N, how can I print out a Christmas tree of height N using the least number of code characters? N is assumed constrained to a min val of 3, and a max val of 30 (bounds and error checking are not necessary). N is given as the one and only command line argument to your program or script. All languages appreciated, if you see a language already implemented and you can make it shorter, edit if possible - comment otherwise and hope someone cleans up the mess. Include newlines and whitespace for clarity, but don't include them in the character count. A Christmas tree is generated as such, with its "trunk" consisting of only a centered "*" N = 3: * *** ***** * N = 4: * *** ***** ******* * N = 5: * *** ***** ******* ********* * N defines the height of the branches not including the one line trunk. Merry Christmas SO!

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• Order by nullable property simultaneously with ordering by not nullable property in HQL

  - by Episodex

  Hi, I have a table called Users in my database. Let's assume that User has only 3 properties int ID; string? Name; string Login; If user doesn't specify his name then Login is displayed. Otherwise Name is displayed. I wan't to get list of all users sorted by what is displayed. So if user specified Name, it is taken into consideration while sorting, otherwise his position on the list should be determined by Login. Eventually whole list should be ordered alphabetically. I hope I made myself clear... Is that possible to do in HQL?

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• DB2 Transaction log is full. How to flush / clear it?

  - by Mestika

  Hi, I’m working on a experiment regarding to a course I’m taking about tuning DB2. I’m using the EC2 from Amazon (aws) to conduct the experiment. My problem is, however, that I have to test a non-compression against row-compression in DB2 and to do that I’ve created a bsh file that run those experiments. But when I reach to my compression part I get the error ”Transaction log is full”; and no matter how low I set the inserts for it is complaining about my transaction log. I’ve scouted Google for a day now trying to find some way to flush / clear the log or just get rit of it, i don’t need it. I’ve tried to increase the size but nothing has helped. Please, I hope someone has an answer to solve this frustrating problem Thanks - Mestika

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• free css ui template

  - by Dels

  Hi, Could someone show me some css ui framework/template for consistent web application, something like: http://www.webguitemplates.com/templates/futurism/futurism-blue http://www.webguitemplates.com/templates/simplus/simplus-silver http://www.adminizio.com/ http://gooeytemplates.myshopify.com/products/blue-atom http://gooeytemplates.myshopify.com/products/blue-carbon http://themeforest.net/category/site-templates/admin-skins http://demo.sproutcore.com/sample%5Fcontrols/ http://ukijs.org/functional/wave.html The framework/template is "pure" css and not javascript/ajax framework (ExtJS, JQuery UI, YUI, etc) and can work without JQuery or other JS/Ajax framework (mainly it just the UI). Maybe be a bit too much, but consider the template included: Form styling (input, button, select, fieldset, radio, checkbox, etc) Table styling (header, row-highlight, row-focus, etc) Navigation styling (tab based, list based, etc) Text typography (h1...h3, b, i, u, em, strong, a, etc) I found some here: http://www.webresourcesdepot.com/free-admin-template-for-web-applications/ http://blogfreakz.com/web-design/excellent-free-admin-template-for-web-applications/ I hope i could find any, especially the one that looks like google product (gmail, wave, analytics), just for speeding up web design process while maintaining consistency on UI design.

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• How to generate complex url like stackoverflow?

  - by Freewind

  I'm using playframework, and I hope to generate complex urls like stackoverflow. For example, I want to generate a question's url: http://aaa.com/questions/123456/How-to-generator-a-complex-url Note the last part, it's the title of the question. But I don't know how to do it. UPDATED In the playframework, we can define routes in conf/routes file, and what I do is: GET /questions/{<\d+>id} Questions.show In this way, when we call @{Questions.show(id)} in views, it will generate: http://aaa.com/questions/123456 But how to let the generated has a title part, is difficult.

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• Suggest Cassandra data model for an existing schema

  - by Andriy Bohdan

  Hello guys! I hope there's someone who can help me suggest a suitable data model to be implemented using nosql database Apache Cassandra. More of than I need it to work under high loads and large amounts of data. Simplified I have 3 types of objects: Product Tag ProductTag Product: key - string key name - string .... - some other fields Tag: key - string key name - unique tag words ProductTag: product_key - foreign key referring to product tag_key - foreign key referring to tag rating - this is rating of tag for this product Each product may have 0 or many tags. Tag may be assigned to 1 or many products. Means relation between products and tags is many-to-many in terms of relational databases. Value of "rating" is updated "very" often. I need to be run the following queries Select objects by keys Select tags for product ordered by rating Select products by tag order by rating Update rating by product_key and tag_key The most important is to make these queries really fast on large amounts of data, considering that rating is constantly updated.

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• Tracking Viewing Habits of Website Visitors

  - by Leland

  Hello everyone! First time using this service for a question. I hope I am not asking something that has already been answered. I attempted to find an answer to my question with the search engine but i was unable to. My question is as follows: Using php, javascript, or anything actually, is it possible for me to track how my users are viewing the pages on my blog/website? Specifically, I want to track the time the user's browser spends reading specific sections of my content on the same page. For example, it would answer questions such as: How much time did someone spend reading the introduction to my article vs the conclusion? (located on the same page) Basically, tracking the "eyes" of a web visitor by looking at where the browser is currently scrolled down the page too. I'm sorry if i'm a bit noob! Thanks for any help with my problem you can provide to me! ^_^

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• groovy variable function

  - by bsreekanth

  I'm not even sure about how to title this qn. But, hope there is an easy way to do it in dynamic language like groovy. say I have a class Service, where I delegate the business logic. the methods in it are funA(), funB()... funX(). Now I have a controller class, where I call the service closure, which can be invoked like service.funA() . Now based on a variable (which can have values A, B ... X), I need to cal the correct service closure. Basically to avoid writing lot of if conditional statements. Something like service."fun+var"() would do. I'm not sure whether it is possible to substitute variable in closure (function)name. or any way by passing function (name) as a parameter...not sure I think PHP has a similar feature http://php.net/manual/en/functions.variable-functions.php thanks for any pointer..

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• List of resources to learn cassandra

  - by Alfred

  Hi all, Lately I have been reading a lot of blog topics about big sites(facebook, twitter, digg, reddit to name a few) using cassandra as their datastore instead of MysqL. I would like to gather a list of resources to learn using cassandra. Hopefully some videos or podcasts explaining how to use cassandra. My list Twissandra - Twissandra is an example project, created to learn and demonstrate how to use Cassandra. Running the project will present a website that has similar functionality to Twitter WTF is a supercolumn - WTF is a SuperColumn? An Intro to the Cassandra Data Model I hope there are resources to watch howto use cassandra. Many thanks, Alfred

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• [Assembly] jnz after xor?

  - by kotarou3

  After using IDA Pro to disassemble a x86 dll, I found this code (Comments added by me in pusedo-c code. I hope they're correct): test ebx, ebx ; if (ebx == false) jz short loc_6385A34B ; Jump to 0x6385a34b mov eax, [ebx+84h] ; eax = *(ebx+0x84) mov ecx, [esi+84h] ; ecx = *(esi+0x84) mov al, [eax+30h] ; al = *(*(ebx+0x84)+0x30) xor al, [ecx+30h] ; al = al XOR *(*(esi+0x84)+0x30) jnz loc_6385A453 Lets make it simpler for me to understand: mov eax, b3h xor eax, d6h jnz ... How does the conditional jump instruction work after a xor instruction?

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• Liquid templates - accessing members by name

  - by egarcia

  I'm using Jekyll to create a new blog. It uses Liquid underneath. Jekyll defines certain "variables": site, content, page, post and paginator. These "variables" have several "members". For instance, post.date will return the date of a post, while post.url will return its url. My question is: can I access a variable's member using another variable as the member name? See the following example: {% if my_condition %} {% assign name = 'date' %} {% else %} {% assign name = 'url' %} {% endif %} I have a variable called name which is either 'date' or 'url'. How can I make the liquid equivalent of post[name] in ruby? The only way I've found is using a for loop to iterate over all the pairs (key-value) of post. Beware! It is quite horrible: {% for property in post %} {% if property[0] == name %} {{ property[1] }} {% endif %} {% endfor %} Argh! I hope there is a better way. Thanks.

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• iPhone: Grouped Table Confusion

  - by senfo

  I'm trying to follow along with this UITableView tutorial and I'm afraid I'm getting confused. What I hope to accomplish is to create a grouped table, which resembles the look and feel of the following image (image source): For each "break" in the table, I assume that I need another section. I understand there is a global NSMutableArray, which acts as the data source to the UITableView. Inside this global array, there are dictionaries for sections and for data, but this is where I start getting confused. Should I create a unique table to store each section in addition to a new table for the rows that are part of that section? In other words, if I have five sections, will I end up with ten unique collections of data (one for each section and one to store the rows related to the section), which all eventually get stored in the global array?

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• ASP.NET variable scope

  - by c11ada

  hey all, im really new to ASP.Net and still havnt got my head round most of the concepts, im really having problems with variable, when creating a desktop application, any variable created in code for example int n = 10; this variable will be there until the program is running right. but in asp iv created variables which are supposed to last until the user gets of that page, so for example say i have a page which takes the users value ( call this variable n say the user type in 10) and every time the user presses the next button the code add 10 to this value. so the first time the user presses the next button n= n + 10; what i have found is no matter how many times i press the next button n will always equal 20, because the previous value is not saved !! these values are populated the first time the user enters that page, once the user clicks the next button the content of these values disappear! how can stop this from happening ?? hope this makes sense !! thanks

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• Social Gold API Integration Help Wanted

  - by xotyc

  Hi, Where can I find someone who is experienced in Social Gold API Integration with a private social networking website (as opposed to Facebook or others)? My network in built on the NING.com platform. Hope that's not seen as a negative thing. I need to integrate Social Gold virtual currency but have no knowledge of API coding etc. I understand this will only take less than an hour to do but I need someone who knows what they're doing and who will be 100% ethical in their work. Thanks, RB

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• geographical deployment Vs geo load balancing SharePoint 2010

  - by vrajaraman

  we have a company wide SharePoint portals planned for few thousand users. since the users are distributed among different countries and their applications (hosted in sharepoint) We would like to consider geo deployment Vs geo load balancing. Please share your inputs. We are aware of this, Geo SharePoint Cluster facilitates - Farms at Central and other sites , db into regional. 2 db cluster - syncing using logshipping or SAN sync or SQL 2008 features like database mirroing Vs Loading balancing using URL and some 3rd party. all farm,sites,db centralised. benefits expecting. 1 High availability. 2.diaster recovering management. 3.maintenance hope i miss some of the points to be covered

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• how to get the http header in asynchronous request mode using ASIHHTTP

  - by user262325

  Hello everyone I hope to display the download file size by reading http header. I know there is way do this: ASIHTTPRequest request = [ASIHTTPRequest requestWithURL:url]; [request startSynchronous]; NSString poweredBy = [[request responseHeaders] objectForKey:@"X-Powered-By"]; NSString *contentType = [[request responseHeaders] objectForKey:@"Content-Type"]; but this is Synchronous mode, in Asynchronous mode it can be done as below: (void)requestFinished:(ASIHTTPRequest *)request { unsigned long long contentLength = [request contentLength]; } but 'requestFinished' is at the end of download. Is there an event to get the http header info at the beginning of download? Thank interdev

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• Sorting list of URLs by length in Jython

  - by Eef

  Hi, I am writing a Jython script to sort a list of URLs. I have a list that looks like this: http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 The pipe and the comma separates the path from the amount of files that are under that path. Is it possible some how use Jython to order the URLs by length, so it would end up look like the below list: http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 Hope you guys get what I mean, any help would be appreciated. Cheers

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• can i change membership provider GetAllUsers method?

  - by Tones

  Hi i am using vb.net and the .net membership provider. i want to bring back a gridview with user account information, like GetAllUsers() does. However i want to only bring back users with certain profile information, that will be users whos profile information matches the selected value in a dropdownlist on the same page. I am using profile provider to record just one extra piece of user information. Can i change or override the GetAllUsers method for this? Adding an extra parameter so its GetAllUsers by Profile. Membership has a FindUsersByName method, i want to do something similar with users by Profile. I am very much a noob with .net programming so i hope i have explained this ok.

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