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  • Authlogic Facebook find existing account

    - by pcasa
    Using Authlogic and Authlogic Facebook Connect. before_filter works great. Get name and facbook_uid saved in db. Only problem is that it saves a new record every time. Need help figuring out how to build some type of find_by_facebook_uid_or_create_user I have tried reading up on the API's for facebooker, but this is way over me. :( UPDATED - users_controller.rb def before_connect(facebook_session) self.firstname = facebook_session.user.first_name self.lastname = facebook_session.user.last_name self.persistence_token = reset_persistence_token end application_controller.rb before_filter :set_facebook_session helper_method :facebook_session

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  • Java: Generics, Class.isaAssignableFrom, and type casting

    - by bguiz
    This method that uses method-level generics, that parses the values from a custom POJO, JXlistOfKeyValuePairs (which is exactly that). The only thing is that both the keys and values in JXlistOfKeyValuePairs are Strings. This method wants to taken in, in addition to the JXlistOfKeyValuePairs instance, a Class<T> that defines which data type to convert the values to (assume that only Boolean, Integer and Float are possible). It then outputs a HashMap with the specified type for the values in its entries. This is the code that I have got, and it is obviously broken. private <T extends Object> Map<String, T> fromListOfKeyValuePairs(JXlistOfKeyValuePairs jxval, Class<T> clasz) { Map<String, T> val = new HashMap<String, T>(); List<Entry> jxents = jxval.getEntry(); T value; String str; for (Entry jxent : jxents) { str = jxent.getValue(); value = null; if (clasz.isAssignableFrom(Boolean.class)) { value = (T)(Boolean.parseBoolean(str)); } else if (clasz.isAssignableFrom(Integer.class)) { value = (T)(Integer.parseInt(str)); } else if (clasz.isAssignableFrom(Float.class)) { value = (T)(Float.parseFloat(str)); } else { logger.warn("Unsupporteded value type encountered in key-value pairs, continuing anyway: " + clasz.getName()); } val.put(jxent.getKey(), value); } return val; } This is the bit that I want to solve: if (clasz.isAssignableFrom(Boolean.class)) { value = (T)(Boolean.parseBoolean(str)); } else if (clasz.isAssignableFrom(Integer.class)) { value = (T)(Integer.parseInt(str)); } I get: Inconvertible types required: T found: Boolean Also, if possible, I would like to be able to do this with more elegant code, avoiding Class#isAssignableFrom. Any suggestions? Sample method invocation: Map<String, Boolean> foo = fromListOfKeyValuePairs(bar, Boolean.class);

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  • Abstract mapping with custom JiBX marshaller

    - by aweigold
    I have created a custom JiBX marshaller and verified it works. It works by doing something like the following: <binding xmlns:tns="http://foobar.com/foo" direction="output"> <namespace uri="http://foobar.com/foo" default="elements"/> <mapping class="java.util.HashMap" marshaller="com.foobar.Marshaller1"/> <mapping name="context" class="com.foobar.Context"> <structure field="configuration"/> </mapping> </binding> However I need to create multiple marshallers for different HashMaps. So I tried to reference it with abstract mapping like this: <binding xmlns:tns="http://foobar.com/foo" direction="output"> <namespace uri="http://foobar.com/foo" default="elements"/> <mapping abstract="true" type-name="configuration" class="java.util.HashMap" marshaller="com.foobar.Marshaller1"/> <mapping abstract="true" type-name="overrides" class="java.util.HashMap" marshaller="com.foobar.Marshaller2"/> <mapping name="context" class="com.foobar.Context"> <structure map-as="configuration" field="configuration"/> <structure map-as="overrides" field="overrides"/> </mapping> </binding> However when doing so, when I attempt to build the binding, I receive the following: Error during code generation for file "E:\project\src\main\jibx\foo.jibx" - this may be due to an error in your binding or classpath, or to an error in the JiBX code My guess is that either I'm missing something I need to implement to enable my custom marshaller for abstract mapping, or custom marshallers do not support abstract mapping. I have found the IAbstractMarshaller interface in the JiBX API (http://jibx.sourceforge.net/api/org/jibx/runtime/IAbstractMarshaller.html), however the documentation seems unclear to me on if this is what I need to implement, as well as how it works if so. I have not been able to find an implementation of this interface to work off of as an example. My question is, how do you do abstract mapping with custom marshallers (if it's possible)? If it is done via the IAbstractMarshaller interface, how does it work and/or how should I implement it?

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  • Image Transformation on iPhone, how to?

    - by Horace Ho
    Since I cannot pre-render all the images in PNGs and real-time image transformation functions are required, namely: skew perspective (like the transform action found in Photoshop) Which API (CoreAnimation? OpenGL ES?) should I look into? Even better, is there any sample code around? Thanks!

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  • ASP.NEt MVC 2 application error on IIS7 works fine on local machine

    - by aspCoolguy
    My ASP.NET MVC2 application is developed using 1. VS 2010 2. Linq To SQL for Models Here is Call controller code: namespace CallTrackMVC.Controllers { public class CallController : Controller { private CallTrackRepository repository; public CallController():this(new CallTrackRepository()) { } public CallController(CallTrackRepository newRepository) { repository = newRepository; } } } Error on IIS7 when browsing the Call Create page is NullReferenceException: Object reference not set to an instance of an object.] CallTrackMVC.Models.ExecOfficeDataContext..ctor() in C:\ClearCase\rartadi_view\STS_Dev_TEST\CallTrackMVC\Models\ExecOffice.designer.cs:71 CallTrackMVC.Controllers.CallController..ctor() in C:\ClearCase\rartadi_view\STS_Dev_TEST\CallTrackMVC\Controllers\CallController.cs:16 [TargetInvocationException: Exception has been thrown by the target of an invocation.] System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0 System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +117 System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +247 System.Activator.CreateInstance(Type type, Boolean nonPublic) +106 System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +102 [InvalidOperationException: **An error occurred when trying to create a controller of type 'CallTrackMVC.Controllers.CallController'. Make sure that the controller has a parameterless public constructor.**] System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +541 System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +85 System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +165 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +80 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +389 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +371 Code in Global.asax is protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); } Any suggestion would be a great help.

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  • How to redirect an application's connection through a Socks5/SSH/HTTPS tunnel? Any recomendations of

    - by Pai Gaudêncio
    I need to tunnel the connections (mostly TCP) made by an application through Socks5, SSH or HTTPS. So far, I've found 3 ways to do this: api hooks, winsock lsp and a driver. I'm looking for advice on the best way to handle this, and any recommendations on SDK's that could abstract this task for me (free/open-source preferred, but commercial ones are welcome as long as the price is not high for a one-man-starting-company to afford). ps. I'm using .Net (C# and-or C++/CLI)

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  • How to learn using Hadoop

    - by ajay
    hi, I want to learn hadoop. However, I don't have access to a cluster now. Is it possible for me to learn it and use it for writing programs and learn it properly. Would it be helpful to run multiple linux VMs and then use them as boxes to run hadoop? Or you think that is more of a stretch and running it on a multiple hosts is the same as running in on single host (in terms of setup, Hadoop API used, the architecture of the map-reduce programs etc) Thanks,

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  • Eclipse autocomplete (content assist) with jsf2.0, xhtml and primefaces 2.2.RC1

    - by Keating Wang
    I use windows 7. I set the ClassPath like this: D:\EclipseProjects\DLFWD_NEW\WebContent\WEB-INF\lib\jsf-api.jar;D:\EclipseProjects\DLFWD_NEW\WebContent\WEB-INF\lib\jsf-impl.jar;D:\EclipseProjects\DLFWD_NEW\WebContent\WEB-INF\lib\primefaces-2.2.RC1.jar And I alse do this: Window Preferences General Content Types Text JSP Add (xhtml) But, it doesn't works. When I use netbeans. I do nothing, but the autocomplete function works well.

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  • Recommended way to perform Lucene search without limit

    - by Thomas
    The Lucene documents tell me that "Hits" will be removed from the API in Lucene 3.0. Deprecated. Hits will be removed in Lucene 3.0. Use search(Query, Filter, int) instead. The proposed overload limits the number of documents returned to the value of the int. So my question is: what is the recommended way to perform a search in Lucene with no limit on the number of documents to be returned?

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  • What exactly is a reentrant function?

    - by eSKay
    Most of the times, the definition of reentrance is quoted from Wikipedia: A computer program or routine is described as reentrant if it can be safely called again before its previous invocation has been completed (i.e it can be safely executed concurrently). To be reentrant, a computer program or routine: Must hold no static (or global) non-constant data. Must not return the address to static (or global) non-constant data. Must work only on the data provided to it by the caller. Must not rely on locks to singleton resources. Must not modify its own code (unless executing in its own unique thread storage) Must not call non-reentrant computer programs or routines. How is safely defined? If a program can be safely executed concurrently, does it always mean that it is reentrant? What exactly is the common thread between the six points mentioned that I should keep in mind while checking my code for reentrant capabilities? Also, Are all recursive functions reentrant? Are all thread-safe functions reentrant? Are all recursive and thread-safe functions reentrant? While writing this question, one thing comes to mind: Are the terms like reentrance and thread safety absolute at all i.e. do they have fixed concrete definations? For, if they are not, this question is not very meaningful. Thanks!

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  • Axis2 SOAP Envelope Header Information

    - by BigZig
    I'm consuming a web service that places an authentication token in the SOAP envelope header. It appears (through looking at the samples that came with the WS WSDL) that if the stub is generated in .NET, this header information is exposed through a member variable in the stub class. However, when I generate my Axis2 java stub using WSDL2Java it doesn't appear to be exposed anywhere. What is the correct way to extract this information from the SOAP envelope header? WSDL: http://www.vbar.com/zangelo/SecurityService.wsdl C# Sample: using System; using SignInSample.Security; // web service using SignInSample.Document; // web service namespace SignInSample { class SignInSampleClass { [STAThread] static void Main(string[] args) { // login to the Vault and set up the document service SecurityService secSvc = new SecurityService(); secSvc.Url = "http://localhost/AutodeskDM/Services/SecurityService.asmx"; secSvc.SecurityHeaderValue = new SignInSample.Security.SecurityHeader(); secSvc.SignIn("Administrator", "", "Vault"); DocumentServiceWse docSvc = new DocumentServiceWse(); docSvc.Url = "http://localhost/AutodeskDM/Services/DocumentService.asmx"; docSvc.SecurityHeaderValue = new SignInSample.Document.SecurityHeader(); docSvc.SecurityHeaderValue.Ticket = secSvc.SecurityHeaderValue.Ticket; docSvc.SecurityHeaderValue.UserId = secSvc.SecurityHeaderValue.UserId; } } } The sample illustrates what I'd like to do. Notice how the secSvc instance has a SecurityHeaderValue member variable that is populated after a successful secSvc.SignIn() invocation. Here's some relevant API documentation regarding the SignIn method: Although there is no return value, a successful sign in will populate the SecurityHeaderValue of the security service. The SecurityHeaderValue information is then used for other web service calls.

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  • symbols in command line argument.. python, bash

    - by Idlecool
    Hi, I am writing a python script on Linux for twitter post using API, Is it possible to pass symbols like "(" ")" etc in clear text without apostrophes.... % ./twitterupdate this is me #works fine % ./twitterupdate this is bad :(( #this leaves a error on bash. Is the only alternative is to enclose the text into -- "" ?? like.. % ./twitterupdate "this is bad :((" #this will reduce the ease of use for the script Is there any workaround?

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  • Rails populate edit form for non-column attributes

    - by Rabbott
    I have the following form: <% form_for(@account, :url => admin_accounts_path) do |f| %> <%= f.error_messages %> <%= render :partial => 'form', :locals => {:f => f} %> <h2>Account Details</h2> <% f.fields_for :customer do |customer_fields| %> <p> <%= customer_fields.label :company %><br /> <%= customer_fields.text_field :company %> </p> <p> <%= customer_fields.label :first_name %><br /> <%= customer_fields.text_field :first_name %> </p> <p> <%= customer_fields.label :last_name %><br /> <%= customer_fields.text_field :last_name %> </p> <p> <%= customer_fields.label :phone %><br /> <%= customer_fields.text_field :phone %> </p> <% end %> <p> <%= f.submit 'Create' %> </p> <% end %> As well as attr_accessor :customer And I have a before_create method for the account model which does not store the customer_fields, but instead uses them to submit data to an API.. The only thing I store are in the form partial.. The problem I'm running into is that when a validation error gets thrown, the page renders the new action (expected) but none of the non-column attributes within the Account Detail form will show? Any ideas as to how I can change this code around a bit to make this work me?? This same solution may be the help I need for the edit form, I have a getter for the data which it asks the API for, but without place a :value = "asdf" within each text box, it doesn't populate the fields either..

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  • Android Facebook Login issue?

    - by Sanal MS
    In my application (https://market.android.com/details?id=com.cabot.beastly&feature=search_result), I am using facebook-android api to login and share to Facebook. It's works fine in emulator and Samsung Galaxy Tab when i tested. But some bugs are reporting by the client, facebook login doesn't load. I think they tested in a device with Android2.1. What are the reasons to don't load facebook login Dialog?. How can i find the reason for this bug?.

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  • Looking for an Open Source Project in need of help

    - by hvidgaard
    Hi StackOverflow! I'm a CS student on well on my way to graduate. I have had a difficult time of finding relevant student jobs (they seems to be taken merely hours after the notice gets on the board) , so instead I'm looking for an open source project in need of help. I'm aware that I should choose one that I use, but I'm not aware of any OS-project that I use that needs help. That's why I'm asking you. I don't have any deep experience, but I here are some of my biggest projects so far: BitTorrent-ish client in Python (a subset of BitTorrent) HTTP 1.1 webserver in Java Compiler from a subset of Java to run on JRE Flash-framework project to model an iPad look and feel (not to run actual iPad programs) complete with an API for programs. Complete MySQL database for a booking system, with departure and arrival times, so you could only book valid tickets (with a Java frontend). I know, Java and languages like AS3 and C# feels natural per se, Python, and have done a fair bit of hacking around in C, but I don't feel very comfortable with it. Mostly I'm afraid to make a fuckup because I have such a high degree of control. I would like to think I'm well aware of good software design practices, but in reality what I do is ask myself "would I like to use/maintain this?", and I love to refactor my code because I see optimizations. I love algorithms and to make them run in the best possible time. I don't have any preferred domain to work in, but I wouldn't mind it to be graphics or math heavy. Ideally I'm looking for a project in C++ to learn the in's and out's of it, but I'm well aware that I don't know that language very well. I would like to have a mentor-like figure until I'm confident enough to stand on my own, not one to review all my code (I'm sure someone will to start with anyway), but to ask questions about the project and language in question. I do have a wife and two children, so don't expect me to put in 10+ hours every week. In return I can work on my own, I strive to program modular and maintainable code. Know how to read an API, use Google, StackOverflow and online resources in general. If you have any questions, shoot. I'm looking forward to your suggestions.

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  • get city state from google map

    - by apueee
    I'm using google map api for showing location. In that i case i need option to get city sate zip from google map marker. In map , user can move the marker to position it after drag finished it will return the city, state and zip. I have successfully get the lat and lng but how can i get the city , state and zip. please help me as soon as possible..

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  • Problem Fetching JSON Result with jQuery in Firefox and Chrome (IE8 Works)

    - by senfo
    I'm attempting to parse JSON using jQuery and I'm running into issues. Using the code below, the data keeps coming back null: <!DOCTYPE html> <html> <head> <title>JSON Test</title> </head> <body> <div id="msg"></div> <script src="http://code.jquery.com/jquery-latest.js"></script> <script> $.ajax({ url: 'http://datawarehouse.hrsa.gov/ReleaseTest/HGDWDataWebService/HGDWDataService.aspx?service=HC&zip=20002&radius=10&filter=8357&format=JSON', type: 'GET', dataType: 'json', success: function(data) { $('#msg').html(data[0].title); // Always null in Firefox/Chrome. Works in IE8. }, error: function(data) { alert(data); } }); </script> </body> </html> The JSON results look like the following: {"title":"HEALTHPOINT TYEE CAMPUS","link":"http://www.healthpointchc.org","id":"tag:datawarehouse.hrsa.gov,2010-04-29:/8357","org":"HEALTHPOINT TYEE CAMPUS","address":{"street-address":"4424 S. 188TH St.","locality":"Seatac","region":"Washington","postal-code":"98188-5028"},"tel":"206-444-7746","category":"Service Delivery Site","location":"47.4344818181818 -122.277672727273","update":"2010-04-28T00:00:00-05:00"} If I replace my URL with the Flickr API URL (http://api.flickr.com/services/feeds/photos_public.gne?tags=cat&tagmode=any&format=json&jsoncallback=?), I get back a valid JSON result that I am able to make use of. I have successfully validated my JSON at JSONLint, so I've run out of ideas as to what I might be doing wrong. Any thoughts? Update: I had the client switch the content type to application/json. Unfortunately, I'm still experiencing the exact same problem. I also updated my HTML and included the live URL I've been working with. Update 2: I just gave this a try in IE8 and it works fine. For some reason, it doesn't work in either Firefox 3.6.3 or Chrome 4.1.249.1064 (45376). I did notice a mistake with the data being returned (the developer is returning a collection of data, even for queries that will always return a single record), but it still baffles me why it doesn't work in other browsers. It might be important to note that I am working from an HTML file on my local file system. I thought it might be a XSS issue, but that doesn't explain why Flickr works.

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  • Android PDF reader from scratch

    - by Javadid
    Hi friends, i know it would sound too ambitious but our client requires a PDF Reader of his own with some selected functionalities. Can any1 here guide me to some good tutorials for paving the way to start its development? i guess i need to clear some pdf basics and start from scratch OR i would be happy if there is any api which i can use directly modify the controls at my will... any help would be highly appreciated... Thanx a lot...

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  • zipping a folder/file using qt

    - by sneha
    Hello every one,i would like to know if we have any class in qt which can zip a folder or file.i used qprocess to compress,it got compressed but i am unable to uncompress it using normal zip tool.can anyone let me know how can we compress a folder/file using qt api classes

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