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  • Looking for design patterns to isolate framework layers from each other

    - by T Reddy
    Hi, I'm wondering if anyone has any experience in "isolating" framework objects from each other (Spring, Hibernate, Struts). I'm beginning to see design "problems" where an object from one framework gets used in another object from a different framework. My fear is we're creating tightly coupled objects. For instance, I have an application where we have a DynaActionForm with several attributes...one of which is a POJO generated by the Hibernate Tools. This POJO gets used everywhere...the JSP populates data to it, the Struts Action sends it down to a Service Layer, the DAO will persist it...ack! Now, imagine that someone decides to do a little refactoring on that POJO...so that means the JSP, Action, Service, DAO all needs to be updated...which is kind of painful...There has got to be a better way?! There's a book called Core J2EE Patterns: Best Practices and Design Strategies (2nd Edition)...is this worth a look? I don't believe it touches on any specific frameworks, but it looks like it might give some insight on how to properly layer the application... Thanks!

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  • Where should I store my App specific config files in WPF

    - by Akash Deshpande
    Background : I have some Application Data. i.e. the Database, come important config files. This data is vital for the application to start else it is exited. Problem : Where should I store this data. i.e in which folder and where. Right Now (This is wrong) it is stored in a folder in Debug/App_Data. But is causing issues in git and when we publish the App the data is not found. So where can we store this folder ? Present Structure is "WpfApplication2\WpfApplication2\bin\Debug" These Files need to be present when the app is started. So they need to be a part of the app itself.

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  • Sharepoint publishing cache- counter missing on WFE(Object Caching)

    - by Ryan
    I want to tune object caching in my sharepoint environment. The way to do is check sharepoint publishing cache counter through perfmon on your farm. I have one application server and 2 WFE but when I am trying to create counter for my WFE its showing Sharepoint publishing cache but I am not able to add any instance of it but when I select my application server I can see all the instances. But If I want to check publishing hit ratio i need to run this on WFE also ...correct me if I m wrong? How to resolve this issue? Also, how to check the hit ratio as our site is not go-live so we don't get enuf users to hit the site to check this thing. Does it means that I can tune it up only my site go live and real load will get on it. Thanks, Amit

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  • Installing Skype on Amazon EC2 instance

    - by Adrian
    For my application, I need to have Skype working on my Amazon EC2 Windows instance. I got the application installed and am able to log in, however, I can't make a phone call, since I am getting an 'Can't detect your sound card' error. Since I'm trying to inject audio from an audio file into the phone call, I don't need the sound card on the server. Thus, I need a way to bypass this error message. I have tried installing Virtual Audio Cable, which unfortunately didn't work (even though it worked on my desktop machine).

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  • Best and safest Java Profiler for production use?

    - by Pete
    I'm looking for a Java Profiler for use in a very high demand production environment, either commercial or free, that meets all of the following requirements: Lightweight integration with code (no recompile with special options, no code hooks, etc). Dropping some profiler specific .jars alongside the application code is ok. Should be able to connect/disconnect to the JVM without restarting the application. When profiling is not active, no impact to performance When profiling is active, negligible impact to performance. Very slight degradation is acceptable. Must do all the 'expected' stuff a profiler does - time spent in each method to find hotspots, object allocation/memory profiling, etc. Essentially I need something that can sit dormant in production when everything is fine without anyone knowing or caring that it is there, but then be able to connect to it hassle (and performance degradation) free to pinpoint the hard to find problems like hotspots and synchronization issues.

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  • Which is the "best" data access framework/approach for C# and .NET?

    - by Frans
    (EDIT: I made it a community wiki as it is more suited to a collaborative format.) There are a plethora of ways to access SQL Server and other databases from .NET. All have their pros and cons and it will never be a simple question of which is "best" - the answer will always be "it depends". However, I am looking for a comparison at a high level of the different approaches and frameworks in the context of different levels of systems. For example, I would imagine that for a quick-and-dirty Web 2.0 application the answer would be very different from an in-house Enterprise-level CRUD application. I am aware that there are numerous questions on Stack Overflow dealing with subsets of this question, but I think it would be useful to try to build a summary comparison. I will endeavour to update the question with corrections and clarifications as we go. So far, this is my understanding at a high level - but I am sure it is wrong... I am primarily focusing on the Microsoft approaches to keep this focused. ADO.NET Entity Framework Database agnostic Good because it allows swapping backends in and out Bad because it can hit performance and database vendors are not too happy about it Seems to be MS's preferred route for the future Complicated to learn (though, see 267357) It is accessed through LINQ to Entities so provides ORM, thus allowing abstraction in your code LINQ to SQL Uncertain future (see Is LINQ to SQL truly dead?) Easy to learn (?) Only works with MS SQL Server See also Pros and cons of LINQ "Standard" ADO.NET No ORM No abstraction so you are back to "roll your own" and play with dynamically generated SQL Direct access, allows potentially better performance This ties in to the age-old debate of whether to focus on objects or relational data, to which the answer of course is "it depends on where the bulk of the work is" and since that is an unanswerable question hopefully we don't have to go in to that too much. IMHO, if your application is primarily manipulating large amounts of data, it does not make sense to abstract it too much into objects in the front-end code, you are better off using stored procedures and dynamic SQL to do as much of the work as possible on the back-end. Whereas, if you primarily have user interaction which causes database interaction at the level of tens or hundreds of rows then ORM makes complete sense. So, I guess my argument for good old-fashioned ADO.NET would be in the case where you manipulate and modify large datasets, in which case you will benefit from the direct access to the backend. Another case, of course, is where you have to access a legacy database that is already guarded by stored procedures. ASP.NET Data Source Controls Are these something altogether different or just a layer over standard ADO.NET? - Would you really use these if you had a DAL or if you implemented LINQ or Entities? NHibernate Seems to be a very powerful and powerful ORM? Open source Some other relevant links; NHibernate or LINQ to SQL Entity Framework vs LINQ to SQL

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  • Solution Output Directory

    - by L.E.O
    The project that I'm currently working on is being developed by multiple teams where each team is responsible for different part of the project. They all have set up their own C# projects and solutions with configuration settings specific to their own needs. However, now we need to create another, global solution, which will combine and build all projects into the same output directory. The problem that I have encountered though, is that I have found only one way to make all projects build into the same output directory - I need to modify configurations for all of them. That is what we would like to avoid. We would prefer that all these projects had no knowledge about this "global" solution. Each team must retain possibility to work just with their own sub-solution. One possible workaround is to create a special configuration for all projects just for this "global" solution, but that could create extra problems since now you have to constantly sync this configuration settings with the regular one, used by that specific team. Last thing we want to do is to spend hours trying to figure out why something doesn't work when building under global solution just because of some check box that developers have checked in their configuration, but forgot to do so in the global configuration. So, to simplify, we need some sort of output directory setting or post build event that would only be present when building from that global, all-inclusive solution. Is there any way to achieve this without changing something in projects configurations? Update 1: Some extra details I guess I need to mention: We need this global solution to be as close as possible to what the end user gets when he installs our application, since we intend to use it for debugging of the entire application when we need to figure out which part of the application isn't working before sending this bug to the team working on that part. This means that when building under global solution the output directory hierarchy should be the same as it would be in Program Files after installation, so that if, for example, we have Program Files/MyApplication/Addins folder which contains all the addins developed by different teams, we need the global solution to copy the binaries from addins projects and place them in the output directory accordingly. The thing is, the team developing an addin doest necessary know that it is an addin and that it should be placed in that folder, so they cannot change their relative output directory to be build/bin/Debug/Addins.

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  • Detect if Visual Studio Test is running

    - by RTigger
    Is there an easy way to detect if you're running in the context of a Visual Studio Test as opposed to debug or release? Here's the scenario - we have a factory class that we use heavily throughout our existing codebase, and I figured instead of refactoring it out in each class so we can substitute the default factory with one that would return mock/fake objects, I could add something in the factory class itself to return those mock objects if it detects it's running in "test" mode.

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  • How a web app identify if a click came from another web app via code?

    - by Diego
    Hi, we have a web application that users can take online reports from ou ERP system data... And we have another web application that is used by our teachers and employees. We can't change the ERP web app because its a closed DLL, in this case we made some extended functionality in our custom internal web app and we are willing to put this functionality on the "menu" of the ERP web app. I need to integrate the two applications in the following way: When I click in the menu of the ERP web app, I want that our internal web app assert that the click have come from our ERP web app and not typed in the URL, this is possible?

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  • Put a program in the system tray at startup

    - by cosmo0
    Hi I followed the commonly-linked tip for reducing an application to the system tray : http://www.developer.com/net/csharp/article.php/3336751 Now it works, but there is still a problem : my application is shown when it starts ; I want it to start directly in the systray. I tried to minimize and hide it in the Load event, but it does nothing. Edit : I could, as a poster suggested, modify the shortcut properties, but I'd rather use code : I don't have complete control over every computer the soft is installed on. I don't want to remove it completely from everywhere except the systray, I just want it to start minimized. Any ideas ? Thanks

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  • number of objects count in NSARRAY

    - by Viral
    hi friends I am making a book application, in that for moving to next topic i am keeping a button. The Button works as it passes to the next topic , but at the end of the file my application gets message obj_fatal and it crashes. So if i can know that how many number of objects are there in my array(NSARRAY)den the problem will be solved. I am getting the details from a .plist file and storing it in to a array. So if any one know it please let me know. Thanks in advance. Viral.

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  • Spring MVC 3.1 How to access HttpSession in Custom Authentication Provider (which implements AuthenticationProvider)

    - by user1506231
    My application calls a web service during the Authentication process (as shown in code below). How can I save some information in HttpSession during this process? This information like customer-account-number will be used in various other places in the application after the user is logged in. Is it possible to pass HttpSession parameter to the MyServiceManager's static login method? public class MyAuthenticationManager implements AuthenticationProvider { @Override public boolean supports(Class<? extends Object> authentication) { return authentication.equals(UsernamePasswordAuthenticationToken.class); } @Override public Authentication authenticate(Authentication authentication) { //MyServiceManager.login - makes a call to web service if(MyServiceManager.login(authentication.getName(), authentication.getCredentials().toString(), XXX_HTTP_SESSION_XXX)) { List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority> (); authorities.add(new GrantedAuthorityImpl("ROLE_USER")); authorities.add(new GrantedAuthorityImpl("ROLE_SUPERVISOR")); return new UsernamePasswordAuthenticationToken(authentication.getName(), authentication.getCredentials(),authorities); } else { return null; } } }

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  • .NET make a copy of an embedded file resource to the local drive

    - by Matt H.
    Hi, i'm new to the realm to working with Files in .NET I'm creating a WPF application in VB.NET with the 3.5 Framework. (If you provide an example in C#, that's perfectly fine.) In my project I have a Template for an MS Access database. My desired behavior is that when the users clicks File--New, they can create a new copy of this template, give it a filename, and save it to their local directory. The database already has the tables and some starting data needed to interface with my application (a user-friendly data editor) I'm thinking the approach is to include this "template.accdb" file as a resource in the project, and write it to a file somehow at runtime? Any guidance will be very, very appreciated. Thanks!

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  • Android programming: Authentication and data exchange with Java EE

    - by Konsumierer
    I am having a Java application running in a Tomcat server using Spring, Hibernate, etc. and a two web interfaces, one implemented in Tapestry 5 and the other one using Flex with BlazeDS and Spring-BlazeDS. In my first android application I would now like to log in to the server and retrieve some data. I´m wondering how I could achieve this in a secure way. First of all I need to know which technology is the best to retrieve data from the server and how can I restrict the access to users only that have been successfully authenticated. With what I read until now I would try to implement a HTTPServlet on the server and make server calls via HTTP Client. In the servlet I could probably use the HTTPSession to check if the request comes from an authenticated user. And the data I would try to send serialized (JSON). Unfortunately, I´ve never done those things and maybe I´m on the wrong way and there are more comfortable solutions.

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  • Version resource in DLL not visible with right-click

    - by abunetta
    I'm trying to do something which is very easy to do in the regular MSVC, but not supported easily in VC++ Express. There is no resource editor in VC++ Express. So I added a file named version.rc into my DLL project. The file has the below content, which is compiled by the resource compiler and added to the final DLL. This resource is viewable in the DLL using reshacker, though not when right-clicking the DLL in Windows Explorer. What is missing from my RC file to make it appear when right-clicking? VS_VERSION_INFO VERSIONINFO FILEVERSION 1,0,0,1 PRODUCTVERSION 1,0,0,1 FILEFLAGSMASK 0x17L #ifdef _DEBUG FILEFLAGS 0x1L #else FILEFLAGS 0x0L #endif FILEOS 0x4L FILETYPE 0x1L FILESUBTYPE 0x0L BEGIN BLOCK "StringFileInfo" BEGIN BLOCK "040904b0" BEGIN VALUE "FileDescription", "something Application" VALUE "FileVersion", "1, 0, 0, 1" VALUE "InternalName", "something" VALUE "LegalCopyright", "Copyright (C) 2008 Somebody" VALUE "OriginalFilename", "something.exe" VALUE "ProductName", "something Application" VALUE "ProductVersion", "1, 0, 0, 1" END END BLOCK "VarFileInfo" BEGIN VALUE "Translation", 0x409, 1200 END END

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  • ClickOnce deployment with VS2008 - prerequisites not installing on Windows 7 (only)

    - by dataft
    I have a VS2008 clickonce application with a custom prerequiste, which I install with the bootstrapper. When deployed online, the prerequisite is downloaded and installed fine. No problems. When deployed via CD to a Windows XP machine, also fine as above. No problems. However, when deployed via CD to a Windows 7 machine: the prerequisite is downloaded - good then the user is asked for permission to the run the file - good then the installation of the prerequiste is just SKIPPED - bad and the ClickOnce application installation begins without the prerequisite - bad Has anyone encountered this weird behaviour? I cannot find a solution anywhere.

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  • API For Flex Apps To Interact

    - by dimo414
    I have a large flex application (the app) running on one server, and many small flex applications (widgets) running on another server, which are to be included in the app so that visually the user see's one continuous application. Due to proprietary third party software, this structure cannot be changed. I am looking for some way to allow the app and the widgets to communicate, allowing the app to make changes to the widgets and the the widgets to notify the app when events are triggered, so that user interaction is fluid and continuous. There are a few related questions which indicate it's possible to do this by setting up event triggers and listeners. I am wondering if there is any standardized way to do this (the answers aren't very clear) or if anyone has developed a library or API to make this easier.

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  • Android add image to button

    - by Christiaan de Jong
    I want to add an image to a Button (no imagebutton, as the particular button can either contain text or an image; plus the imagebutton has the same problem), while still retaining the original android-style button. So adding android:background in the XML doesn't cut it, as that will remove the android default button with rounded corners etc. (android.R.drawable.btn_default) Is this in any way possible? I think one way is to make a 9patch image for the button pressed (one for up and one for down) and onTouch Action_DOWN make a layered background drawable and put that onto the button, and doing the same thing but with another 9patch for onTouch Action_UP, but I think that will decrease the performance of the application substantially, as that will require quite a lot of resource reading and layer merging for all the button clicks (and for my application, that will be quite a lot). Is what I state above correct?

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  • Convert this curl to multi PHP

    - by user1642423
    I have this code and I want made 10 curl connections like this with multi but I don't know how to that with this specific code: What the code does? Make a curl requiest to an .asp page Uses the result to send some data in a form ($ciudad) then the page get this submit and make an internal request and show an result. Output the final result of that. function curl($header,$encoded,$cookie){ $options = array( CURLOPT_USERAGENT => $_SERVER['HTTP_USER_AGENT'], CURLOPT_TIMEOUT => 120, //CURLOPT_REFERER => '', //CURLOPT_HTTPHEADER => $header, CURLOPT_COOKIE => $cookie, CURLOPT_POST => true, CURLOPT_POSTFIELDS => $encoded, CURLOPT_RETURNTRANSFER => true, CURLOPT_HEADER => false, CURLOPT_FOLLOWLOCATION => true, ); $ch = curl_init("http://procesos.ramajudicial.gov.co/consultaprocesos/consultap.aspx"); curl_setopt_array( $ch, $options ); $output = curl_exec($ch); curl_close($ch); return $output; } $cookie = ""; foreach($_COOKIE as $k => $v) $cookie .= $k."=".$v.";"; $cookie = substr($cookie,0,strlen($cookie)-1); $encoded = ''; foreach($_POST as $name => $value) { $encoded .= urlencode($name).'='.urlencode($value).'&'; } $lk = "http://procesos.ramajudicial.gov.co/consultaprocesos/"; $header[] = 'User-Agent: '.$_SERVER['HTTP_USER_AGENT']; $header[] = 'Accept: text/xml,application/xml,application/xhtml+xml,text /html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5'; $header[] = 'Accept-Language: en-us,en;q=0.5'; $header[] = 'Accept-Encoding: gzip,deflate'; $header[] = 'Connection: keep-alive'; $header[] = 'Cookie : '.$cookie; $header[] = 'Content-Type: application/x-www-form-urlencoded'; $output = curl($header,$encoded,$cookie); $CIUDAD = urlencode("Medellin"); // to change $CORPORACION = urlencode("JUZGADOS CIVILES MUNICIPALES DE MEDELLIN"); // to change $DIGITOS = $numsus; // BEGIN STEP 1 $__VIEWSTATE = 'id="__VIEWSTATE" value="'; $i = stripos($output,$__VIEWSTATE) + strlen($__VIEWSTATE); $j = stripos($output,'"',$i); $__VIEWSTATE = substr($output,$i,$j-$i); $__EVENTVALIDATION = 'id="__EVENTVALIDATION" value="'; $i = stripos($output,$__EVENTVALIDATION) + strlen($__EVENTVALIDATION); $j = stripos($output,'"',$i); $__EVENTVALIDATION = substr($output,$i,$j-$i); $encoded = '__EVENTTARGET=DropDownList1&__EVENTARGUMENT=&__LASTFOCUS=&__VIEWSTATE='.urlencode($__VIEWSTATE).'&__EVENTVALIDATION='.urlencode($__EVENTVALIDATION).'&DropDownList1='.$CIUDAD.'&TextBox13='; $output = curl($header,$encoded,$cookie);

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  • HTTP POSTed files automatically uploaded to root directory

    - by Baddie
    I just inherited an ASP.NET WebForms web application that I was tasked with refactoring. One of the features is a file upload and while debugging I noticed that as soon as a file is posted to a certain page/handler, it is automatically uploaded to the root directory of the application. The file is then moved to the proper location. I can't seem to figure out whats causing this automatic upload of the file. Is there something I'am overlooking in ASP.NET WebForms that allows this to happen? Is it an IIS configuration or something?

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  • Can Connect to 3G Modem via GSMComm but cannot see any SMS

    - by user305044
    Hi, I'm trying to write an application that receives SMS messages into the app I'm developing (in C# if you care :). Research indicates the best bet is to use GSMComm library. I've downloaded the library and using the demo app I have managed to connect to the 3g modem (a Huawei E1756) but when I query it for SMS's received it comes back with 0. Interestingly if I use the software that comes with the application then I can see the messages. Anyone got any clues on why this would be? Or other tips on how to retrieve the messages? Cheers, Kym

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  • Cannot manipulate storyboards with c# in blend

    - by gkaykck
    Here is the problem, in Blend 3 i have 12 storyboards, i can manipulate them with using xaml, but when i try to manipulate them with c#, blend seems cannot see them. Where could be the problem? The exact error is : The name 'name of the stroyboard which exists' does not exists in the current context

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  • Java escape HTML - string replace slow?

    - by cpf
    Hi StackOverflow, I have a Java application that makes heavy use of a large file, to read, process and give through to SolrEmbeddedServer (http://lucene.apache.org/solr/). One of the functions does basic HTML escaping: private String htmlEscape(String input) { return input.replace("&", "&amp;").replace(">", "&gt;").replace("<", "&lt;") .replace("'", "&apos;").replaceAll("\"", "&quot;"); } While profiling the application, the program spends roughly 58% of the time in this function, a total of 47% in replace, and 11% in replaceAll. Now, is the Java replace that slow, or am I on the right path and should I consider the program efficient enough to have its bottleneck in Java and not in my code? (Or am I replacing wrong?) Thanks in advance!

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  • ASp.Net MVC routing

    - by suneehs
    Hi, I am using MVC 2.0 to create my application,my problem i s related to the routing. Actually in my application each user have required seperate subdomain,like www.example.com/user1/ ,www.example.com/user2/ ...etc.the default domain is www.example.com.So how can i make it possible with routing in mvc. i have tried like this, routes.Add(new Route( "{id}", new RouteValueDictionary( new { controller = "User", action = "login", id = " " } ), new MvcRouteHandler())); var defaults = new RouteValueDictionary( new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); routes.Add(new Route( "{controller}/{action}/{id}", defaults, new MvcRouteHandler())); But the problem is that it take deafult (www.example.com) directly to user login page.I want the default page as Home/index and when www.example.com/user1/ it will go to user login page.Is there any way ..pls help me

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