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  • Service Contracts with Message causes duplicate proxy classes

    - by jaklucky
    Hi, I have a service contract with Message as shown below. [OperationContract] Message MyMethodWithMessage(Message myMsgParam); Everything works fine. I could host my services. But when I try to create proxies through "Add Service References", I am getting the duplicate proxy classes. If I take out the above OperationContract and re run my services and try to create proxies, then "Add Service References" does not provide duplicate proxies. I am really confused about this!!! Any help is greatly appreciated... Thank you, Suresh

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  • Which Java modules get Spring Security

    - by HDave
    I have a classic Java SOA application, with a web UI module, web services module, a service module (Java API), a domain module and a persistence module. In a sense, each of these modules has their own public API. My understanding of Spring Security is that I can use web filters to handle the security of the web gui and web services, and method level security (via annotations) for the service module. My question is this: should I bother to add method level security to the domain module and the persistence module or is that considered overkill?

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  • The use of GROUP BY in MySQL

    - by Gustav Bertram
    I'm fishing for a comprehensive and canonical answer for the typical "mysql group by?" question. Here is some sample data: TABLE A +------+------+----------+-----+ | id | foo | bar | baz | +------+------+----------+-----+ | 1 | 1 | hello | 42 | | 2 | 0 | apple | 96 | | 3 | 20 | boot | 11 | | 4 | 31 | unicorn | 99 | | 5 | 19 | pumpkin | 11 | | 6 | 88 | orange | 13 | +------+------+----------+-----+ TABLE B +------+------+ | id | moo | +------+------+ | 1 | 1 | | 2 | 99 | | 3 | 11 | +------+------+ Demonstrate and explain the correct use of the GROUP BY clause in MySQL. Touch upon the following points: The use of MIN, MAX, SUM, AVG The use of HAVING Grouping by date, and ranges of dates Grouping with an ORDER BY Grouping with a JOIN Grouping on multiple columns Bonus points for references to other great answers, the MySQL online manual, and online tutorials on GROUP BY.

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  • Is it possible to use flashvars with JBoss?

    - by Aikanaro
    Hi, I'm part of a team developing a product using JSF 2.0 and I was asked to investigate the possibility of including FusionCharts free in the app. I have tried different ways of inserting a simple chart in a JSF page but with no luck. On of the methods involves using the elements OBJECT and EMBED but hhen I try to use them I get a "null source" error from JBoss. From what I could find online (through Google), I am under the impression that 'flashvars' isn't quite compatible with JBoss. Is anyone here able to confirm this? If this is the case, what workaround would you suggest me? Other ways I also found online didn't show the chart not even an error message. Thanks in advance.

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  • What goes between SQL Server and Client?

    - by worlds-apart89
    This question is an updated version of a previous question I have asked on here. I am new to client-server model with SQL Server as the relational database. I have read that public access to SQL Server is not secure. If direct access to the database is not a good practice, then what kind of layer should be placed between the server and the client? Note that I have a desktop application that will serve as the client and a remote SQL Server database that will provide data to the client. The client will input their username and password in order to see their data. I have heard of terms like VPN, ISA, TMG, Terminal Services, proxy server, and so on. I need a fast and secure n-tier architecture. P.S. I have heard of web services in front of the database. Can I use WCF to retrieve, update, insert data? Would it be a good approach in terms of security and performance?

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  • Keeping iPhone application in sync with GWT application.

    - by Reflog
    Hi, I'm working on an iPhone application that should work in offline and online modes. In it's online mode it's supposed to feed all the information the user enters to a webservice backed by GWT/GAE. In it's offline mode it's supposed to store the information locally, and when connection is available sync it up to the web service. Currently my plan is as follows: Provide a connection between an app and a webservice using Protobuffers for efficient over-the-wire communication Work with local DB using Core Data Poll the network status, and when available sync the database and keep some sort of local-db-to-remote-db key synchronization. The question is - am I in the right direction? Are the standard patterns for implementing this? Maybe someone can point me to an open-source application that works in a similar fashion? I am really new to iPhone coding, and would be very glad to hear any suggestions. Thanks

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  • How to support both DataContractSerializer and XMLSerializer for the same contract on the same host?

    - by Sly
    In our production environment, our WCF services are serialized with the XMLSerializer. To do so our service interfaces have the [XMLSerializerFormat] attribute. Now, we need to change to DataContractSerializer but we must stay compatible with our existing clients. Therefore, we have to expose each service with both serializers. We have one constraint: we don't want to redefine each contract interface twice, we have 50 services contract interfaces and we don't want to have IIncidentServiceXml IIncidentServiceDCS IEmployeeServiceXml IEmployeeServiceDCS IContractServiceXml IContractServiceDCS How can we do that? This is a description of what we have tried so far but I'm willing to try completely different approaches: We tried to create all the endpoints by code in our own ServiceHostFactory class. Basically we create each endpoint twice. The problem is that at runtime, WCF complains that the service has two endpoints with the same contact name but with different ContractDescription instances. The message says we should use different contract names or reuse the same ContractDescription instance.

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  • How to use regular expressions to pull a substring? (screen scraping)

    - by Diego
    Hey guys, i'm really trying to understand regular expressions while scraping a site, i've been using it in my code enough to pull the following, but am stuck here. I need to quickly grab this: http://www.example.com/online/store/TitleDetail?detail&sku=123456789 from this: ('<a href="javascript:if(handleDoubleClick(this.id)){window.location=\'http://www.example.com/online/store/TitleDetail?detail&sku=123456789\';}" id="getTitleDetails_123456789">\r\n\t\t\t \tcheck store inventory\r\n\t\t\t </a>', 1) This is where I got confused. any ideas?

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  • ASP.NET AJAX or jQuery (UpdatePanel/ScriptManager or UFrame/jQuery.ajax)

    - by Mark Redman
    Hi, We use the asp.net UpdatePanel and the ScriptManager/ScriptManagerProxy for ajax related functionality; reducing full page refreshes and calling WCF Services respectively. we also use jQuery and plugins for some parts of the UI. We have had some issues with javascript library related conflicts, but have come across some posts indicating that there is a lot more overhead using the UpdatePanel. I have found some limited reference to UFrame: http://www.codeproject.com/KB/aspnet/uframe.aspx www.codeplex.com/uframe Is this a commercially viable replacement for the asp.net UpdatePanel? We use a ScriptManagerProxy to reference WCF services and easily create and use a proxy to call the various WCF service methods. Would using jQuery ajax be a more efficient solution here? We have got this working well on various browsers but now seem to be getting some security related issues (as seen in FF Firebug: Access to restricted URI denied" code: "1012) which seem to have started since using jQuery a lot more. Is it possible/viable to not use ASP.NET Ajax at all?

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  • Using Session Variables inside an ajax document

    - by Pete Herbert Penito
    Hi, For some reason I've having problems reading this session variable within an ajax document, I've got this inside online.php: ` session_start(); if (isset($_SESSION['username'])) { $username = $_SESSION['username']; } ` For some Reason this is not setting username even when the session var is being used on the host page, i call on the php file every second using this ` $(document).ready(function() { var refreshId = setInterval(function() { $('#timeval').load('online.php'); }, 1000); $("#stop").click(function() { clearInterval(refreshId); }); }); ` Am I doing something wrong, or is this not even possible?? Any advice would really help thanks alot!

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  • SOAP - What's the point?

    - by DanSingerman
    I mean, really, what is the point of SOAP? Web services have been around for a while, and for a while it seemed that the terms 'SOAP' and 'Web service' were largely interchangeable. However SOAP always seemed unwieldy and massively overcomplicated to me. Then REST came along, and suddenly web services made sense. As Joel Spolsky says, give a programmer a REST URL, and they can start playing with the service right away, figuring it out. SOAP is obfuscated behind WSDLs and massively verbose XML, and despite being web based, you can't do anything as simple as access a SOAP service with a web browser. So the essence of my question is: Are there any good reasons to ever choose SOAP over REST? Are you working with SOAP now? Would it be better if the interface was REST? Am I wrong?

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  • ASP.Net: Is it possible to cache the js-proxies generated by scriptmanager?

    - by AndreasKnudsen
    We have the following code: <asp:ScriptManager runat="server"> ... <Services> <asp:ServiceReference Path="~/JSONServices/ProfileService.svc" /> </Services> ... This results in a Javascript proxy found in /JSONServices/ProfileService.svc/js. This Javascript has content expiry set to the same time it was called (so it is never cached on the client). Is it possible to have the clients cache these proxies for some time?

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  • In Winform I need ASP.NET like membership and roles stuff. But Roles doesn't work

    - by user512602
    Hi, following http://www.theproblemsolver.nl/usingthemembershipproviderinwinforms.htm I set up the membership & roles providers in app.config and try use it in code. Authentication works well, bur roles always returns empty roles array for connected user. This part works: If Membership.ValidateUser(userName, password) Then ' Set the current application principal information to a known user Dim identity As GenericIdentity Dim principal As RolePrincipal Dim user As MembershipUser user = Membership.GetUser(userName) identity = New GenericIdentity(user.UserName) principal = New RolePrincipal(identity) Threading.Thread.CurrentPrincipal = principal This one doesn't: If principal.IsInRole("Club") Then LoggedInUserRole = "Club" Return True Exit Function End If No error is thrown though. Similarly, if I try to add a user to a known, existing role, an exception is thrown : If Not Roles.IsUserInRole(userName, "club") Then Roles.AddUserToRole(userName, "club") End If Exception msg is: Cannot find role '' (I mean the role name isn't given back in exception.) Any clue? Please do not tell me to use Windows Client Administration within project services, I need my own SQL DB connection + the client app services is a bloated dfeature, bug prone.

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  • Is there anyway to bring web @Context into JUnit (CXF+Spring)

    - by Sudheer
    I am trying to create unit test environment to test RESTFul services (cfx+spring) in my dev environemnt. To test RESTFul Services, I require @Context within JUnit test cases. @Context should contain HttpRequest, HttpSession, ServletContext, ServletConfig and all other webserver related information. I have setup the JUnit for the above, but when I run, @Context is coming as null. This could be because there is no webserver running and there is no @Context. I am just doubting whether there is a way to created sample web @Context and pass to JUnit. Any other ideas are welcome to bring web @Context into JUnit test cases. Thank you, Sudheer

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  • How to put log in box in a website to ensure one user can vote once only?

    - by shah
    I have a school project to do which requires us to develop an online voting website. how do i ensure one user has voted once only? the website is supposed to be in booths in public places which means i cannot use ip addresses or cookies. i was planning to use fb login id or maybe some other email id but i cannot find relevant codes/links. i just want people to go through the procedure of entering the log in id but not go to fb directly. my website cannot be published online. could you please suggest how i can achieve this? it is a bit urgent, thank you!

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  • Good tool to test WCF service (not SOAP/HTTP webservice)

    - by Kangkan
    I recently found SOAPUI and discovered that it is just a great tool for testing any SOAP/HTTP service. Conventionally, we have been developing our own driver to test our services (WCF based netTCP binding) so far. But with SOAPUI experience, I am really looking for some such tool that can be used with such ease with built-in facilities for load testing, functional testing etc. The other thought in my mind is that for services that I wish to deploy with netTCP can be first tested using a HTTP binding using SOAPUI. Once found suitable, the binding can be changed for the intended one. I shall like the views from all the experts here. Thanks.

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  • Does the number of busy worker threads in the CLR ThreadPool affect performance of I/O threads?

    - by andrej351
    We have a Windows Service which hosts a number of WCF services and, in an unrelated part of the app, makes extensive use of the TPL Task class to asynchronously do relatively short bits of work. It is my understanding that WCF uses managed I/O threads from the ThreadPool to execute requests. I noticed that after deploying a feature which significantly raised the applications use of Tasks, and as such the use of ThreadPool worker threads as well, performance of a couple of web services has become very slow. We're talking minutes instead of less than a second. The number of Tasks actually trying to run at any one time can range between 20 and 1000, which makes me think that any new (last in) work needing some CPU time could be forced to wait for quite some time. Does the (in my case extremely large) number of busy ThreadPool worker threads affect the ThreadPool's managed I/O threads? Or could these two be connected in any way? Thanks!

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  • Installing CXF with Eclipse 3.5

    - by shinynewbike
    As per http://help.eclipse.org/helios/topic/org.eclipse.jst.ws.cxf.doc.user/reference/preferences.html The CXF 2.x preferences can be accessed via Window > Preferences... > Web Services > CXF 2.x Preferences from the top level menu. but I dont see the option CXF 2.x Preferences under Web Services, though I have chosen JavaEE perspective. any ideas how to enable this? Sorry for such a simple question. I also cannot do not see CXF as a Project Facet as per http://help.eclipse.org/helios/index.jsp?topic=/org.eclipse.jst.ws.jaxws.doc.user/gettingstarted/requirements.html I know this is something to do with getting Eclipse aware of CXF libraries, but cant find the tutorial for this.

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  • Offline mode app in a (HTML5) browser possible?

    - by Horace Ho
    Is it possible to build an application inside in browser? An application means: 1 Where there is connection (online mode) between the browser and an remote application server: the application runs in typical web-based mode the application stores necessary data in offline storage, to be used in offline mode (2) the application sync/push data (captured during offline mode) back to the server when it is resumed from offline mode back to online mode 2 Where there is no connection (offline mode) between the browser and an remote application server: the application will still run (javascript?) the application will present data (which is stored offline) to user the application can accept input from user (and store/append in offline storage) Is this possible? If the answer is a yes, is there any (Ruby/Python/PHP) framework being built? Thanks

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  • Learning Objective-C 2.0 and ASP.NET 4.0 simultaneously?

    - by Sahat
    (HOBBY) I own a Macbook Pro and iPod Touch so developing iPhone/iPod/iPad apps seems like a logical thing to do in order to get some experience in the programming field. Besides I want to write a new application similar to the Capsuleer (Character skills monitor app for EVE Online MMO) but with more features. It's something I'd love to have on my own iPod Touch and I am sure other people will welcome a new EVE Online app for their iPhone or iPod Touch. (CAREER) I want to learn ASP.NET (and possibly Silverlight later on) for my potential future job. I plan to work in the .NET field, so it's a good idea for me to start learning C# and ASP.NET ASAP. Is it a good idea to learn completely unrelated technologies at the same time? Or would it be better to learn one thing at a time? Objective-C first, and ASP.NET second. Or vice versa. Thanks, Sahat

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  • What is the cheapest non-colocation way to serve about 10 static files at a rate of 100 megabits per

    - by Mark Maunder
    I've looked at Amazon S3 and it costs roughly $4746 per month for 100 megabits/s (which translates into 31,640 Gigabytes of data transferred. That's at a rate of $0.15 per gig.) I haven't found a cheaper "cloud" option. I'm curious if there's any other cloud hosting option out there cheaper than S3. Uptime is not an issue because I can build failover for most things into the browser. e.g. I can use javascript to say "if the image didn't load then go to this other URL instead." FYI I'm currently using a colocation facility which is about 30% cheaper than S3 and I'm familiar with colo prices - so this question is really about "cloud" services and by that I mean services where I don't have to worry about the infrastructure.

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  • How to pay your users? (alternatives to PayPal)

    - by Sosh
    Hi, I would like to know what best non-paypal options are for paying users of your website (for services rendered for instance). How are others doing this at the moment? If you could mention specific services providers that would be most useful. This would have to work internationally, not be limited to one country. Thank you Update (in response to comments) Reason for excluding PayPal: I've had bad experiences with them in the past. Amounts: Well, i don't mean micropayments of a few cents, but could be anything from 40EUR - 500 EUR. Currency: I didn't mention this, but I would be paying in Euros.

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