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  • CORBA Naming Service returns incorrect location of a registered object

    - by dave-keiture
    Hi experts, I have a simple setup with several objects registered at orbd. Remote client initializes connection to the ORB and tries to resolve a reference to the Naming Serice (IDL:omg.org/CosNaming/NamingContextExt:1.0). So far it's all fine - ORB returns giop.iiop.host/giop.iiop.port pair. When reference to the Naming Service is resolved, client tries to resolve_str() one of the registered objects. This time, Naming Service returns completely different pair giop.iiop.host/giop.iiop.port for the object (not the host/port of a Naming Service) - I don't know anything about them. When client tries to call a method on a resolved object, it fails, as the host/port pair is not configured in the firewall. Could you please explain, why it's happening? Thanks in advance!

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  • How do I verify the URL that ActiveResource intends to use on a call?

    - by btelles
    Hi there, I'm trying to request data from another Rails app, but I keep getting a "URL not found" error. Is it possible to use the debugger to figure out the intended URL and parameters for an intended ActiveResource call? For example, I'd like to make a GET request with the following parameters: https://some_server.com/employees/search.xml?last_name=smith And I have the following ActiveResource model class Employee < ActiveResource::Base self.site = "https://.some_server.com" end And the some_server.com app has a search action that maps this way: map.connect "/employees/search.:format", :controller => 'employees', :action => 'search' But when I try this: Employee.new(:last_name => 'smith).get(:search) I get a 404 "Service not found" error. To me, that sounds like the URL that ACtiveResource is requesting is incorrect, 'cause when I make the above request via a browser, I get the xml. Any idea what I'm doing wrong? Cheerio, Berns

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  • Using HTTP status codes to reflect success/failure of Web service request?

    - by jgarbers
    I'm implementing a Web service that returns a JSON-encoded payload. If the service call fails -- say, due to invalid parameters -- a JSON-encoded error is returned. I'm unsure, however, what HTTP status code should be returned in that situation. On one hand, it seems like HTTP status codes are for HTTP: even though an application error is being returned, the HTTP transfer itself was successful, suggesting a 200 OK response. On the other hand, a RESTful approach would seem to suggest that if the caller is attempting to post to a resource, and the JSON parameters of the request are invalid somehow, that a 400 Bad Request is appropriate. I'm using Prototype on the client side, which has a nice mechanism for automatically dispatching to different callbacks based on HTTP status code (onSuccess and onFailure), so I'm tempted to use status codes to indicate service success or failure, but I'd be interested to hear if anyone has opinions or experience with common practice in this matter. Thanks!

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  • Does the WCF framework support the XSD IDREF restriction?

    - by Gerard
    A nice feature in XSD is the IDREF restriction, e.g.: <xs:restriction base="xs:IDREF"> <xs:pattern value="[0-9a-zA-Z\-]+"/> </xs:restriction> I used this restriction with great benefit in a Java JAXWS-project. An object serialized in a SOAP XML datamodel can hold a reference (pointer) to another object in the same SOAP message. I want to try the same approach in a C# WCF-project, can it be done? On the web site Data Contract Schema Reference I can see e.g. Id ignored, Ref forbidden, but I am not sure whether I understand what that means.

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  • Visual Studio Pre build events and batch set

    - by helloworld922
    Hi, I'm trying to create call a batch file which sets a bunch of environment variables prior to building. The batch file looks something like this (it's automatically generated before-hand to detect ATI Stream SDK or NVidia CUDA toolkit): set OCL_LIBS_X86="%ATISTREAMSDKROOT%libs\x86" set OCL_LIBS_X64="%ATISTREAMSDKROOT%libs\x86_64" set OCL_INCLUDE="%ATISTREAMSDKROOT%include" However, the rest of the build doesn't seem to have access to these variables, so when I try to reference $(OCL_INCLUDE) in the C/C++GeneralAdditional include directories, it will first give me warning that environment variable $(OCL_INCLUDE) was not found, and when I try to include CL/cl.hpp the compile will fail with: fatal error C1083: Cannot open include file: 'CL/cl.hpp': No such file or directory I know that I could put these variables into the registry if I wanted to access them from the visual studio GUI, but I would really prefer not to do this. Is there a way to to get these environment variables to stick after the pre-build events? I can't reference $(ATISTREAMSDKROOT) directly because the project must be able to build for both ATI Stream and NVidia Cuda.

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  • How to automatically change a parameter in Reporting Services when another is changed?

    - by Victor Rodrigues
    I have a 'Product' parameter in my report. Depending on the product the user chooses, it will call the report generator stored procedure from a different data source. Looking at this article, I've found how to do the first part of this solution. I've created two internal parameters, Server and Database, and the connection string will use them to connect to the right database. But I need to set this two parameters when the user chooses a product. How could I do this? (If @Product = X) = @Server = Y, @Database = Z

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  • Jasper Reports - Add one day to a Date Parameter

    - by Templar
    I'm creating a Jasper report that includes the following parameters: DATESTART (Date) DATEEND (Date) These parameters indicate a date range for a field called DATECREATED (Timestamp) which includes times. I would like the date range to be INCLUSIVE, that is, if I filter for "Jan 1, 2009" to "Jan 31, 2009", any DATECREATED value on Jan 31, 2009 (such as "Jan 31, 2009 15:00") will be included in the report. When I used Crystal Reports in the past, I used the DATEADD function to create a filter expression like the following: {DATECREATED} >= {DATESTART} and {DATECREATED} < DATEADD("d", 1, {DATEEND}) (I realize that this isn't syntactically correct, but you get the idea.) Is there any way to do something similar in Jasper Reports?

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  • Are delegates copied during assignment to an event?

    - by Sir Psycho
    Hi, The following code seems to execute the FileRetrieved event more than once. I thought delegates were a reference type. I was expecting this to execute once. I'm going to take a guess and say that the reference is being passed by value, therefore copied but I don't like guesswork :-) public delegate void DirListEvent<T>(T dirItem); void Main() { DirListEvent<string> printFilename = s => { Console.WriteLine (s); }; var obj = new DirectoryLister(); obj.FileRetrieved += printFilename; obj.FileRetrieved += printFilename; obj.GetDirListing(); } public class DirectoryLister { public event DirListEvent<string> FileRetrieved; public DirectoryLister() { FileRetrieved += delegate {}; } public void GetDirListing() { foreach (var file in Directory.GetFiles(@"C:\")) { FileRetrieved(file); } } }

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  • WCF reuse types in referenced assemblies does not reuse the ServiceContract Interface

    - by Matt
    I have three seperate projects: -MyUserControl (Needs a reference to a service implementing IMyService) -MyService (Implements IMyService) -MySharedInterfaces (IMyUserControl and IMyService) -MyWebApp The user control needs to be dynamically loaded at runtime. This implements IMyUserControl and has a property of type IMyService which will be set at runtime. The trouble is even with the option to reuse types the WebApp isn't reusing the IMyServiceType, it always generates it again from the Service Reference. This wouldn't be an issue if I could cast it to MySharedInterfaces.IMyService (which I can't understand, since it should be exactly the same). The user control is expecting something of type IMyService, is there anyway to either cast the WebServiceReference.IMyService back to MySharedInterface.IMyServiceReference or force the WebServiceReference to reuse the MySharedInterface.IMyServiceReference? Thanks

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  • Default encoding type for wsHttp binding

    - by user102533
    My understanding was that the default encoding for wsHttp binding is text. However, when I use Fiddler to see the SOAP message, a part of it looks like this: <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"><s:Header><a:Action s:mustUnderstand="1" u:Id="_2">http://tempuri.org/Services/MyContract/GetDataResponse</a:Action><a:RelatesTo u:Id="_3">urn:uuid:503c5525-f585-4ecd-ac09-24db78526952</a:RelatesTo><o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"><u:Timestamp u:Id="uuid-8935f789-fbb7-4c69-9f67-7708373088c5-22"><u:Created>2010-03-08T19:15:50.852Z</u:Created><u:Expires>2010-03-08T19:20:50.852Z</u:Expires></u:Timestamp><c:DerivedKeyToken u:Id="uuid-8935f789-fbb7-4c69-9f67-7708373088c5-18" xmlns:c="http://schemas.xmlsoap.org/ws/2005/02/sc"><o:SecurityTokenReference><o:Reference URI="urn:uuid:b2cbfe07-8093-4f44-8a06-f8b062291643" ValueType="http://schemas.xmlsoap.org/ws/2005/02/sc/sct"/></o:SecurityTokenReference><c:Offset>0</c:Offset><c:Length>24</c:Length><c:Nonce>afOoDygRG7BW+q8+makVIA==</c:Nonce></c:DerivedKeyToken><c:DerivedKeyToken u:Id="uuid-8935f789-fbb7-4c69-9f67-7708373088c5-19" xmlns:c="http://schemas.xmlsoap.org/ws/2005/02/sc"><o:SecurityTokenReference><o:Reference URI="urn:uuid:b2cbfe07-8093-4f44-8a06-f8b062291643" ValueType="http://schemas.xmlsoap.org/ws/2005/02/sc/sct"/></o:SecurityTokenReference><c:Nonce>l4rFsdYKLJTK4tgUWrSBRw==</c:Nonce></c:DerivedKeyToken><e:ReferenceList xmlns:e="http://www.w3.org/2001/04/xmlenc#"><e:DataReference URI="#_1"/><e:DataReference URI="#_4"/></e:ReferenceList><e:EncryptedData Id="_4" Type="http://www.w3.org/2001/04/xmlenc#Element" xmlns:e="http://www.w3.org/2001/04/xmlenc#"><e:EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes256-cbc"/><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><o:SecurityTokenReference><o:Reference ValueType="http://schemas.xmlsoap.org/ws/2005/02/sc/dk" URI="#uuid-8935f789-fbb7-4c69-9f67-7708373088c5-19"/></o:SecurityTokenReference></KeyInfo><e:CipherData><e:CipherValue>dW8B7wGV9tYaxM5ADzY6UuEgB5TFzdy4BZjOtF0NEbHyNevCIAVHMoyA69U4oUjQHMJD5nHS0N4tnJqfJkYellKlpFZcwqruJ1J/TFx9uwLFFAwZ+dSfkDqgKu/1MFzVSY8eyeYKmbPbVEYOHr0lhw3+7wn5NQr3yxvCjlucTAdklIhD72YnVlSVapOW3zgysGt5hStyj+bmIz5hLGyyv6If4HzWjUiru8V3iMM/ss1I+i9sJOD013kr4zaaA937CN9+/aZ2wbDXnYj31UX49uE/vvt9Tl+c4SiydbiX7tp1eNSTx9Ms5O64gb3aUmHEAYOJ19XCrr756ssFZtaE7QOAoPQkFbx9zXy0mb9j1YoPQNG+JAcrN0yoRN1klhccmY+csfYXdq7YBB/KS+u2WnUjQ7SlNFy5qIPxuy5y0Jyedr2diPKLi0gUi+cK49BLQtG/XEShtxFaeMy7zZTrQADxww7kEkhvtmAlmyRbz3oGc+ This doesn't look like text encoding to me (Shouldn't text encoding send data in readable form)? What am I missing? Also, how do I setup binary encoding for wsHttp binding?

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  • Haskell: What is the difference between $ (dollar) and $! (dollar exclamation point)

    - by Jelle Fresen
    Can anybody explain the difference in Haskell between the operators ($) and ($!) (dollar sign vs dollar sign exclamation point)? I haven't seen the use of $! anywhere so far, but while browsing through the Haskell reference on www.zvon.org, I noticed its existence and that it has the exact same definition as $. When trying some simple statements in a Haskell interpreter (ghci), I couldn't find any difference, nor could I find any reference to the operator in the top listed tutorials when googling for haskell tutorial. So, just out of curiosity, what is the difference, if at all?

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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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  • Seeking References To MSVC 9.0's C++ Standards Compliance

    - by John Dibling
    I "know" (hopefully) that MSVC 9.0 Implements C++ 2003 (ISO/IEC 14882:2003). I am looking for a reference to this fact, and I am also looking for any research that has been done in to how compliant MSVC 9.0 is with that version of the Standard. I have searched for and not been able to find a specific reference from MicroSoft that actually says something to the effect that MSVC implements C++ 2003. Some of the out-of-date documentation says things like "this release achieves roughly 98% compliance" (when referring to MSVC .NET 2003's conformance to C++ 1997). But I want a link to a document from MS that says "MSVC 9.0 implements blah," and another link to an independent group that has tested the conformance of MSVC 9.0. Do you know of any such links?

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  • NuGet - managing and removing mutil version packages in single solution

    - by Myles McDonnell
    SCENARIO One VS solution with n projects. Project A references package Y v1, Project B references package Y v2. It is now not possible to update all references to package Y for all projects in the solution using the NuGet package manage dialog at the solution level, it is only possible to do this when all projects reference the same version of package Y. Not a big deal for only two projects, but I'm dealing with lots of projects that through poor package management are referencing many package versions when they should all reference the same version. Before I spend the afternoon writing a console app. to auto update all package.config files for a solution so that each referenced package is only referenced via it's latest version (latest referenced, not the very latest, with exceptions/caveats etc)....is there a tool/method for doing this already? Or some other approach I am unaware of?

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  • Swapping UIImages causing 'unrecognized selector sent to instance' ?

    - by user158103
    Error: [__NSCFDate drawAtPoint:]: unrecognized selector sent to instance 0xd251e0 Termininating app due to uncaught exception 'NSInvalidArgumentException' Scenario: for the most part this works. But I notice this error, even on the simulator, when I swapping UIImages, slowly, but consistently. For example, I have a retained reference to a UIImage that im drawing. By the click of a picker control I am changing the face image (this occurs in another view-controller). I can consistently recreate this error by continuously changing the faces. It usually crashes at about the 4th swap or more. My theory: It's not loading the image, therefore the image reference is nil. I know ive read a bit about UIImage being cached, so I wouldnt think im running out of memory. Any ideas? Thanks!

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  • Fleunt NHibernate not working outside of nunit test fixtures

    - by thorkia
    Okay, here is my problem... I created a Data Layer using the RTM Fluent Nhibernate. My create session code looks like this: _session = Fluently.Configure(). Database(SQLiteConfiguration.Standard.UsingFile("Data.s3db")) .Mappings( m => { m.FluentMappings.AddFromAssemblyOf<ProductMap>(); m.FluentMappings.AddFromAssemblyOf<ProductLogMap>(); }) .ExposeConfiguration(BuildSchema) .BuildSessionFactory(); When I reference the module in a test project, then create a test fixture that looks something like this: [Test] public void CanAddProduct() { var product = new Product {Code = "9", Name = "Test 9"}; IProductRepository repository = new ProductRepository(); repository.AddProduct(product); using (ISession session = OrmHelper.OpenSession()) { var fromDb = session.Get<Product>(product.Id); Assert.IsNotNull(fromDb); Assert.AreNotSame(fromDb, product); Assert.AreEqual(fromDb.Id, product.Id); } My tests pass. When I open up the created SQLite DB, the new Product with Code 9 is in it. the tables for Product and ProductLog are there. Now, when I create a new console application, and reference the same library, do something like this: Product product = new Product() {Code = "10", Name = "Hello"}; IProductRepository repository = new ProductRepository(); repository.AddProduct(product); Console.WriteLine(product.Id); Console.ReadLine(); It doesn't work. I actually get pretty nasty exception chain. To save you lots of head aches, here is the summary: Top Level exception: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.\r\n\r\n The PotentialReasons collection is empty The Inner exception: The IDbCommand and IDbConnection implementation in the assembly System.Data.SQLite could not be found. Ensure that the assembly System.Data.SQLite is located in the application directory or in the Global Assembly Cache. If the assembly is in the GAC, use element in the application configuration file to specify the full name of the assembly. Both the unit test library and the console application reference the exact same version of System.Data.SQLite. Both projects have the exact same DLLs in the debug folder. I even tried copying SQLite DB the unit test library created into the debug directory of the console app, and removed the build schema lines and it still fails If anyone can help me figure out why this won't work outside of my unit tests it would be greatly appreciated. This crazy bug has me at a stand still.

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  • MongoDB RSS Feed Entries, Embed the Entries in the Feed Object?

    - by Patrick Klingemann
    I am saving a reference to an RSS Feed in MongoDB, each Feed has an ever growing list of Entries. As I'm designing my schema, I'm concerned about this statement from the MongoDB Schema Design - Embed vs. Reference Documentation: If the amount of data to embed is huge (many megabytes), you may read the limit on size of a single object. This will surely happen if I understand the statement correctly. So the question is, I am correct to assume that I should not embed the Feed Entries within a Feed because I'll eventually reach the limit on size of a single object?

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  • Table/column names enclosed in square brackets, even though their names consist of legal characters

    - by AspOnMyNet
    Square brackets allow you to use names for columns or aliases that contain characters not permitted for column names or aliases. a) I’ve noticed that lots of times table and column names are enclosed inside square brackets, even though their names consist of perfectly legal characters. Why is that? b) As far as I know, square brackets enclosing object’s name aren’t actually a part of that name. Thus, if we create a table named [A]: CREATE TABLE [A] ( … ) we can later reference it without using brackets: SELECT * FROM A But why isn’t the same true when I try to reference a column KEY from a table returned by CONTAINSTABLE function? Namely, if I omit the brackets enclosing column name, I get an error: SELECT ct.KEY FROM CONTAINSTABLE(fullText,*,'some_string') as ct thanx

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  • What does this do and why does it require a transaction?

    - by S. Palin
    What does the following code example do and why does it require a transaction? // PersistenceManager pm = ...; Transaction tx = pm.currentTransaction(); User user = userService.currentUser(); List<Account> accounts = new ArrayList<Account>(); try { tx.begin(); Query query = pm.newQuery("select from Customer " + "where user == userParam " + "parameters User userParam"); List<Customer> customers = (List<Customer>) query.execute(user); query = pm.newQuery("select from Account " + "where parent-pk == keyParam " + "parameters Key keyParam"); for (Customer customer : customers) { accounts.addAll((List<Account>) query.execute(customer.key)); } } finally { if (tx.isActive()) { tx.rollback(); } }

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  • OpenCMS - Best approach for showing rotating references

    - by user197127
    Hi, I would like to add on the right column of my site a rotating references section. Each reference would have some text + name of person + company name. It does not need to be structured (open text is also ok). I would then want opencms to rotate between 20 difference references each time a page is displayed. I can keep a session scope counter holding which reference we last showed. I need a way to manage the references (users not programmers) over time. My question is which would be the best way to do so? Thanks

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  • Isn't the C++ standard library backward-compatible?

    - by Chris Metzler
    Hi. I'm working on a 64-bit Linux system, trying to build some code that depends on third-party libraries for which I have binaries. During linking, I get a stream of undefined reference errors for one of the libraries, indicating that the linker couldn't resolve references to standard C++ functions/classes, e.g.: librxio.a(EphReader.o): In function `gpstk::EphReader::read_fic_data(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': EphReader.cpp:(.text+0x27c): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)' EphReader.cpp:(.text+0x4e8): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)' I'm not really a C++ programmer, but this looks to me like it can't find the standard library. Doing some more research, I got the following when I looked at librxio's dependency for the standard library: $ ldd librxio.so.16.0 ./librxio.so.16.0: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by ./librxio.so.16.0) libm.so.6 => /lib64/libm.so.6 (0x00002aaaaad45000) libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00002aaaaafc8000) libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002aaaab2c8000) libc.so.6 => /lib64/libc.so.6 (0x00002aaaab4d7000) /lib64/ld-linux-x86-64.so.2 (0x0000555555554000) So I read that as saying that librxio (one of the third-party libraries) requires at least v3.4.9 of the standard library. But the version I have installed is 4.1.2: $ rpm -qa | grep libstdc compat-libstdc++-33-3.2.3-61.x86_64 libstdc++-devel-4.1.2-14.el5.i386 libstdc++-devel-4.1.2-14.el5.x86_64 libstdc++-4.1.2-14.el5.x86_64 libstdc++-4.1.2-14.el5.i386 Shouldn't this work? The shared object major number is 6, same as for v3.4.9. At this level, shouldn't this be backward compatible? It seems like the third-party library is looking for an earlier version of the standard library than what I have installed; but isn't there backward compatibility between versions with the same major number for the shared library? Again, I'm not really a C++ programmer; but I don't see what the problem is. Any advice greatly appreciated. Thanks.

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  • Test if single linked list is circular by traversing it only once

    - by user1589754
    I am a fresher and I was asked this question in a recent interview I gave. The question was --- By traversing each element of linked list just once find if the single linked list is circular at any point. To this I answered that we will store reference of each node while traversing the list in another linked list and for every node in the list being tested we will find if the reference exists in the list I am storing the references. The interviewer said that he needs a more optimized way to solve this problem. Can anyone please tell me what would be a more optimized method to solve this problem.

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