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• Using thrift to mix development languages

  - by christopher-mccann

  I am currently developing an application which will require multiple different development languages. I want to use PHP as the final piece of the puzzle - the physical web page construction. This PHP web app will need to contact multiple web services which could be coded in anything from Java to Erlang to Python. Each of these web services will be implemented with an API. My plan is to use Thrift to allow this mix to work. Is this the correct approach or am I mixing up what the whole point of Thrift is?

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• Swing: what to do when a GUI update takes too long and freezes other GUI elements?

  - by java.is.for.desktop

  Hello, everyone! I know that GUI code in Java Swing must be put inside SwingUtilities.invokeAndWait or SwingUtilities.invokeLater. This way threading works fine. Sadly, in my situation, the GUI update it that thing which takes much longer than background thread(s). More specific: I update a JTree with about just 400 entries, nesting depth is maximum 4, so should be nothing scary, right? But it takes sometimes one second! I need to ensure that the user is able to type in a JTextPane without delays. Well, guess what, the slow JTree updates do cause delays for JTextPane during input. It refreshes only as soon as the tree gets updated. I am using Netbeans and know empirically that a Java app can update lots of information without freezing the rest of the UI. How can it be done? NOTE 1: All those DefaultMutableTreeNodes are prepared outside the invokeAndWait. NOTE 2: When I replace invokeAndWait with invokeLater the tree doesn't get updated.

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• Iphone - Displaying NSDate values in the debugger with local timezone

  - by Oliver

  Hello, I'm trying to debug my app and there is something very annoying in the debugger : all the NSDate values are displayed in the GMT timezone. So in my debugging process, I lose a lot of time converting by myself all the displayed dates to check if they are correct in the system timezone. As I have a lot of dates at midnight, even the day is displayed "wrong". It's a nightmare. Is there a way to make the debugger display the NSDate values in the iPhone system timezone (not the MacOS one nor GMT) ? I'm at GMT+1 Thank you for your help.

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• WebSocket support on mobile devices

  - by Marco W.

  For an Android multiplayer game's communication between players I'm using a WebSocket server and TooTallNate's Java library on the client side to enable WebSocket support in the Android app. So just to point it out clearly, WebSocket support in mobile browsers is not important to me. Unfortunately, users report that they're experiencing problems such as connection failures or unreceived messages. Is that a general problem of WebSockets on mobile devices (blocked ports, firewalls, mobile Internet connection) or is that probably a flaw in the client side code? Do you have experience with WebSocket client libraries such as the one above? I've just discovered autobahn.ws for Android - but I don't know if it's worth switching from my current library (see above). What about WAMP? Is WebSocket technology not exactly the adequate solution so that I should use the sub-protocol (?) WAMP?

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• need help with acts_as_ferret and will_paginate to play nice together

  - by ironmantis7x

  I have installed will_paginate and acts_as_ferret on my system for ruby rails. My paginate seems to work fine before installing acts_as_ferret. When I put in the code to do searching I get the following error: NoMethodError in Community#search Showing app/views/community/_result_summary.rhtml where line #3 raised: undefined method `total_entries' for []:Array Extracted source (around line #3): 1: <% if @users %> 2: <p> 3: Found <%= pluralize(@users.total_entries, "match") %>. 4: </p> 5: <% end %> If I take out the search function, paginate works but it's pointless because I can't do searches. Can any one help me out on this one?? Thanks!! Stephen

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• UIWebView in multithread ViewController

  - by Tao

  I have a UIWebView in a viewcontroller, which has two methods as below. The question is if I pop out(tap back on navigation bar) this controller before the second thread is done, the app will crash after [super dealloc], because "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread.". Any help would be really appreciated. -(void)viewDidAppear:(BOOL)animated { [super viewWillAppear:animated]; NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(load) object:nil]; [operationQueue addOperation:operation]; [operation release]; } -(void)load { [NSThread sleepForTimeInterval:5]; [self performSelectorOnMainThread:@selector(done) withObject:nil waitUntilDone:NO]; }

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• Python Scraper for Javascript?

  - by Diego

  Hey all, Can anyone direct me to a good Python screen scraping library for javascript code (hopefully one with good documentation/tutorials)? I'd like to see what options are out there, but most of all the easiest to learn with fastest results... wondering if anyone had experience. I've heard some stuff about spidermonkey, but maybe there are better ones out there? Specifically, I use BeautifulSoup and Mechanize to get to here, but need a way to open the javascript popup, submit data, and download/parse the results in the javascript popup. <a href="javascript:openFindItem(12510109)" onclick="s_objectID=&quot;javascript:openFindItem(12510109)_1&quot;;return this.s_oc?this.s_oc(e):true">Find Item</a> I'd like to implement this with Google App engine and Django. Thanks!

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• Using RDL files in Web ReportViewer

  - by user54064

  I want to use a rdl file with the query information stored in it. I don't want to have to convert it to a rdlc file. I have an ASP.NET app that I want to show the report. I thought I would use a ReportViewer on my page and then have it use the rdl file. However, I get an error and in researching it appears that I have to convert the file to an rdlc file. I don't want to strip out the data contained in the report. How can I show the report to the user by running the rdl report?

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• Setting Grouping in UITableView under UINavigationController

  - by climbon

  In my UINavigationController app, my first view is a UITableView. I can't seem to find a way to set the property of this UITableView to 'grouped'. Since UITableView is dynamically generated I don't have the luxury of Interface Builder. Searched forums here and googled other places and closest I saw was to override either initWithStyle or initWithCoder as follows. (id)initWithStyle:(UITableViewStyle)style { if (self = [super initWithStyle:UITableViewStyleGrouped]) { } return self; } However this above function never gets called. when I overrided initWithCoder I could see it worked and I was able to change UITableView contents to grouped. But then title automatically became 'Root View Controller' and none of the cells were active anymore although they got grouped fine. That is while they looked active but if you click on them, those cells won't do anything. But I have seen apps which have their very first view being UITableView is grouped. So there must be a way to do it but I don't know how.

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• External class-calling

  - by anonymous

  Hi guys i have a bit of a problem with a few classes, and i would be very grateful if someone can help me out. So i have: Already compiled executable (for whom i don't have the source) A class in that program that i want to call The program doesn't have export for the class, and that's my problem i don't have definition for this class, so is there a way to get a callback to this class? Example: In the compiled executable: foo::bar (example) { printf(example); } My app: CALLBACK(foo::bar, "this text must be passed as argument") Or in other words i want to call a class in other executable (without having its source) and pass arguments to its function.

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• Are there any open-source / free site analytics solutions that are intranet deployable?

  - by Richard Nichols

  There are plenty of statistics/analytics providers for Internet deployed software (e.g. Google Analytics), but I'm looking for an analytics tool to integrate into a LAN/intranet based web application. I'm aware of AWStats, but I'd prefer something with a design similar to Google Analytics, where a Javascript callback can be embedded into the app and call back to an analytics server. This doesn't require any sort of extra application server configuration and access to run. I'm thinking there's nothing available that isn't proprietary / pay-for, but I'd love to be told I'm wrong!

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• Java: I am trying to server a zip file through a link, but the file comes out as being empty

  - by Ankur

  I am trying to server a zip file through a link, but the file comes out as being empty. My app takes a number of files and zips them up, then presents the user with a link to the file so he/she can download it. On the server I can see that the zip file is being created correctly, but when I download it from the server through the normal HTML link provided no data is downloaded i.e. a zip file is created locally but it has file size 0kb. The file names are of the form XPCS.2010-03-09.15.13.42.165.zip - will the dots cause problems?

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• Grails Runtime Exception with Audit Logging Plugin

  - by Paul

  I've deployed my app to tomcat running on EC2 via Cloud Foundry. The application uses the Grails Audit Logging Plugin I'm getting the following runtime error: Error 500: Executing action [save] of controller [com.questern.aoms.CompanyController] caused exception: groovy.lang.MissingPropertyException: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent Servlet: grails URI: /aoms/grails/company/save.dispatch Exception Message: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent Caused by: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent Class: CompanyController At Line: [30] The exception is: groovy.lang.MissingPropertyException: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent at $Proxy10.saveOrUpdate(Unknown Source) at com.questern.aoms.CompanyController$_closure4.doCall(CompanyController.groovy:30) at com.questern.aoms.CompanyController$_closure4.doCall(CompanyController.groovy) I have added the import statement to the controller CompanyController, but to no avail. import org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent I checked the war file and the AuditLogEvent is include in: aoms-0.1.war\WEB-INF\classes\org\codehaus\groovy\grails\plugins\orm\auditable\ Any suggestions as to what the problem could be?

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• How to make autocompleting textbox in vb6 like this one?

  - by Amit Kumar Jha

  hey all, well i want to have an autocompleting textbox like the one in the image below: this screenshot is from an accounting software. whenever the user focuses on a textbox and starts typing something the suggestions just popup under the control (as seen in the image under the Purc type textbox).This autosuggest functionality even works in the cells of the grid shown in the picture.Moreover the fields in which this autosuggest is enabled allows only values from the autosuggest list to be filled up and nothing else. i want to emulate similar functionality in my app in vb6. so if you could please guide me in the right direction i would be very grateful. thanks in advance to all those who take out time to reply.

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• How do I disable or enable 2nd dropdownlist in aspx based on selected choice of the 1st dropdownlist

  - by fzshah76

  I am having a problem with disabling DropDownList based on the chice of 1st DropDownList, there is no post back occuring, and it is a template based web app here is the current code: <script type="text/javascript"> $(function() { var dropDownList1 = $('#<%= ddlUserType.ClientID %>'); var dropDownList2 = $('#<%= ddlMember.ClientID %>'); dropDownList1.change(function(e) { if ( jQuery("#ddlUserType").val() != "ETOC") dropDownList2.removeAttr('disabled'); e.preventDefault(); else dropDownList2.removeAttr('enabled'); e.preventDefault(); } } ); </script> what is happening now is page is blank and if I remove the above code everything shows, where I am going wrong, any help would be much appreciated.

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• Database: relational/not relational/object oriented... What to choose?

  - by Damian

  I'm porting a website that I made for app engine to run on a dedicated server. It is coded in java and I'm looking for a database to replace google datastore. My first thougt was MySql because everybody uses it, but i dont like SQL and I think I would feel more comfortable using OODB or anything else. With google datastore I could modify my models and don't worry about the database definition at all. I know using MySql that isn't possible. And I don't want to miss that. And if I use a OODB, which should I use? What about performance compared to MySql? Well, any idea or tip will really help me since I know nothing about databases.

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• django: how to interconnect various logical pieces of a webpage

  - by facha

  Hi, everyone. I'm just starting with django, so sorry for a possibly stupid question. Imagine, I have a webpage with 3 logical pieces: content, dynamic menu, banners. It seems ok to me to have a template with something like: {% include "banners.html" %} {% include "menu.html" %} {% include "content.html" %} But then, how do I do it? Every piece has its separate logic in a separate view in its' separate app. How do I trigger execution of all three views and render all three templates? P.S. Is there a sourceforge-like site for django apps where I could take a look at how people are doing stuff in real projects?

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• What should I learn to improve my Java skills ?

  - by hory.incpp

  Hello, I currently know Java SE and I want to learn something more 'enterprise'. I would like something more distributed (app server, server programming, web, content management system ...) but any suggestion is ok. There are many frameworks which I've heard: spring, hibernate, persistence, ejb, jsp, servlet, jsf, jboss, glassfish, ant etc etc etc etc. I'm very confused where to start. So the question is: Can somebody explain to me what actually there frameworks are; and which one should I start with ? Thank you.

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• C# Console Application: Preventing Control-C from being printed?

  - by Alan

  Hi. I have a console app, and I want to capture Control-C and shutdown gracefully. I have the following code: Console.CancelKeyPress += new ConsoleCancelEventHandler((o, e) => { Logger.Log("Control+C hit. Shutting down."); resetEvent.Set(); }); And the output windows shows: 6/16/2010 3:24:34 PM: Control+C hit. Shutting down. ^C Is there a way to prevent the control-c character ^C from appearing? It's not a huge deal, but for some reason Ill be fixated on it because I'm anal like that.

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• Which SOA architecture is most appropriate for a Java application?

  - by Robert Greiner

  I am currently working on a pretty large Java 6 application where we are looking to split some of our functionality out into a service oriented architecture. It seems that the primary SOA framework for the application space is OSGi and I have been looking into Felix and Knopplerfish but I wanted to make sure that this isn't my only option. Does it make sense to use an actual web service protocol for our application like SOAP, even though we are not building a web app? Is this even acceptable? Have any of you used an implementation of OSGi (Felix, etc.) with your desktop application? if so, how did it go? Do you know of anything better? We're all pretty new to SOA here so any help would be greatly appreciated.

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• Facebook Feed Dialog Returns API Error Code: 191

  - by Kris

  In my Facebook App I'll always get the following error : An error occurred. Please try again later. API Error Code: 191 API Error Description: The specified URL is not owned by the application Error Message: redirect_uri is not owned by the application. I just want to feed a post via button my code is function postToFeed() { // calling the API ... var obj = { method: 'feed', link: 'https://mydomain.com/', picture: 'https://mydomain.com/img/feed.png', name: 'BLABLADialog', caption: 'UeberschriftBLABLA', description: 'DescriptionBLABLA', show_error: true }; function callback(response) { document.getElementById('msg').innerHTML = "Post ID: " + response['post_id']; } FB.ui(obj, callback); } my Canvas-URL is "http://mydomain.com/" my Secure Canvas-URL is "https://mydomain.com/" my Tab-URL is "https://mydomain.com/tab.php" my Secure Tab-URL is "https://mydomain.com/tab.php" my Website with Facebook Login SITE URL is "https://mydomain.com/" so what I am doing wrong ?

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• Maven: Multiple class with the same path implemented in different jar

  - by Phuong Nguyen de ManCity fan

  I'm running into trouble with having multiple class with the same path (i.e. same name, same package!!!). For some reason, gwt-dev comes with its own version of org.apache.xerces.jaxp.DocumentBuilderFactoryImpl and javax.xml.parsers.DocumentBuilderFactory. At the same time, spring also depends on these classes but from different jar. I don't know what should be, but look like xalan & xml-api are the two dependencies that spring depends on (these dependency are optional) Funny thing is that eclipse can run the same code (it's a unit test) without problem, but surefire cannot. So I guess the problem is due to the way each runner consider the priority of each jar. Now come to the question: How can I setup my POM so that I can sure that when ever any code running inside my app, then class from a jar will be selected over class from other jar? Thanks.

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• Get Janrain to work with Sproutcore?

  - by weng

  Since Sproutcore is not dependent on the backend server to render pages, I'm struggling on how to get it working with Janrain. In one of the login processes of Janrain a HTTP request is sent to a backend server that processes the information and render a logged in page to the user. Since I'm using Sproutcore and don't have a backend server but using CouchDB to serve Sproutcore I wonder how I am going to implement Janrain successfully. Even if I'm using a backend server like Node.js I'm still not sure how to implement Janrain. Has anyone implemented Janrain in a Sproutcore app?

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• Symfony2 : How to make the php_intl extension available for Symfony2?

  - by Miles M.

  I'm trying to follow this documentation on Symfony : http://symfony.com/doc/current/book/forms.html ok so here is my thing, I've externalised my form and created a specific form class for handling the process and being able to reuse it. So what happen when I submit the form, whatever the info are okay or not for my class, I get this fatal Error : Fatal error: Call to a member function setAttribute() on a non-object in C:\Program Files (x86)\wamp\www\QNetworks\vendor\symfony\src\Symfony\Component\Form\Extension\Core\DataTransformer\NumberToLocalizedStringTransformer.php on line 130 Call Stack I'm running with php 5.3.9 and my intl extension is installed and activated BUT when I run the app/check.php command I see : [[WARNING]] Checking that the intl extension is available: FAILED * Install and enable the intl extension (used for validators) * So I don't understand what the problem with this extension. Should I reinstall it ? When I go here : http://php.net/manual/en/intl.requirements.php I see tht i can install the PECL or the ICU library, but i don't know if I should and if there is any relation with my problem .. Thank for your help !!

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• how to tell Rails RSpec that spec is "type helper"

  - by equivalent8

  I wrote *simple_form* input extension that is located in app/inputs/something_input.rb I'm trying to write RSpec for this. When I put this spec inside spec/helpers/application_helper_spec.rb everything was working without single problem. # spec/helpers/application_helper_spec.rb require 'spec_helper' describe ApplicationHelper do it do helper.simple_form_for @foo,:method=>'get', :url=>helper.users_path do |f| f.input :created_at, :as =>:custom_datepicker end.should =~ /something/ end end Now I'm trying to move that spec to spec/inputs/something_input_spec.rb so it will be similar name path. # spec/imputs/something_input_spec.rb require 'spec_helper' describe SomethingInput do it do helper.simple_form_for @foo,:method=>'get', :url=>helper.users_path do |f| f.input :created_at, :as =>:custom_datepicker end.should =~ /something/ end end # #ERROR: undefined local variable or method `helper' for #<RSpec::Core::ExampleGroup the thing I want to tell RSpec to threat this file as type helper spec, so I will have helper method availible with all the RSpec::Rails::HelperExampleGroup functionality ... how can I do that ?? I was trying to extend/include it with RSpec::Rails::HelperExampleGroup nothing seems to work

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