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  • navbar hover issue in ie8

    - by Joel
    I'm having a problem with a child list not hovering correctly in IE8. Other browsers and IE7 seem to work fine. Here is the site: http://rattletree.com/index_1.php If you hover over the nav bars you'll see the sub-list come into view. You can see that the arrow image is not below the navbar in IE8 only. html: <div id="navbar2"> <ul id="navbar"> <li id="index"><a href="index.php">About Rattletree</a></li> <li id="upcomingshows"><a href="upcomingshows.php">Calendar</a></li> <li id="booking"><a href="booking.php">Contact</a> <ul class="innerlist"> <li class="innerlist"><img class="arrowAdjust" src="images/curved_arrow.png"</img><a href="#">Booking Information</a></li> <li class="innerlist"><a href="#">Press</a></li> </ul> </li> <li id="instruments"><a href="instruments.php">The Band</a> <ul class="innerlist"> <li class="innerlist"><img class="arrowAdjust" src="images/curved_arrow.png"</img><a href="#">The Instruments</a></li> <li class="innerlist"><a href="#">The Players</a></li> </ul> </li> <li id="classes"><a href="classes.php">Sights &amp; Sounds</a> <ul class="innerlist"> <li class="innerlist"><img class="arrowAdjust" src="images/curved_arrow.png"</img><a href="#">Listen</a></li> <li class="innerlist"><a href="#">Photos</a></li> <li class="innerlist"><a href="#">Video</a></li> </ul> </li> <li id"classes"><a href="classes.php">Workshops &amp; Classes</a></li> </ul> </div> and css: /* OUTER LIST STYLING */ div#navbar2 { position:relative; width: 100%; border-top: solid #000 1px; border-bottom: solid #546F8B 1px; background-color: #546F8B; } div#navbar2 ul#navbar { padding: 0px; margin: 10px 0; font-family: Arial, Helvetica, sans-serif; font-size: 16px; letter-spacing:1px; color: #FFF; white-space: nowrap; display:block; } div#navbar2 ul#navbar li { position:relative; margin: 0px; padding:0px; list-style-type: none; display:inline; } div#navbar2 li a { text-decoration: none; color: #fff; margin:0; padding: 11px 12px; } div#navbar2 li a:link { color: #FFF: } div#navbar2 li a:visited { color: #ffffff; } div#navbar2 li a:hover { color: #000; background-color: #FDFFC9; } /* INNER LIST STYLING */ div#navbar2 ul#navbar li ul.innerlist{ display: none; color:#000; } div#navbar2 ul#navbar li ul.innerlist li{ color:#000; } div#navbar2 ul#navbar li:hover ul.innerlist { position: absolute; display: inline; left: 0; width: 100%; margin: 30px 0 0px 0px; padding: 0; color:#000; } div#navbar2 ul#navbar li.innerlist a { text-decoration: none; font-weight:bold; color: #000; padding: 10px 15px 20px 15px; margin:0; } div#navbar2 li.innerlist a:link { color: #000: } div#navbar2 li.innerlist a:visited { color: #000; } div#navbar2 ul#navbar li.innerlist a:hover { color: #e62d31; background-color:transparent; } img.arrowAdjust{ padding:0px 0 0 20px; margin:0; }

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  • Write Your Own Microsoft Expression Blend 3 Addin

    Although there have been numerous articles introducing how to write a Microsoft Expression blend 2 addin, the Microsoft Expression blend 3/4 related ones are few. In this article, you will learn what a Microsoft Expression blend addin is and command the common routine to write an Addin. Finally, you will master the inner workings of the addin through a concrete sample application.

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  • Entity Framework 6: Alpha2 Now Available

    - by ScottGu
    The Entity Framework team recently announced the 2nd alpha release of EF6.   The alpha 2 package is available for download from NuGet. Since this is a pre-release package make sure to select “Include Prereleases” in the NuGet package manager, or execute the following from the package manager console to install it: PM> Install-Package EntityFramework -Pre This week’s alpha release includes a bunch of great improvements in the following areas: Async language support is now available for queries and updates when running on .NET 4.5. Custom conventions now provide the ability to override the default conventions that Code First uses for mapping types, properties, etc. to your database. Multi-tenant migrations allow the same database to be used by multiple contexts with full Code First Migrations support for independently evolving the model backing each context. Using Enumerable.Contains in a LINQ query is now handled much more efficiently by EF and the SQL Server provider resulting greatly improved performance. All features of EF6 (except async) are available on both .NET 4 and .NET 4.5. This includes support for enums and spatial types and the performance improvements that were previously only available when using .NET 4.5. Start-up time for many large models has been dramatically improved thanks to improved view generation performance. Below are some additional details about a few of the improvements above: Async Support .NET 4.5 introduced the Task-Based Asynchronous Pattern that uses the async and await keywords to help make writing asynchronous code easier. EF 6 now supports this pattern. This is great for ASP.NET applications as database calls made through EF can now be processed asynchronously – avoiding any blocking of worker threads. This can increase scalability on the server by allowing more requests to be processed while waiting for the database to respond. The following code shows an MVC controller that is querying a database for a list of location entities:     public class HomeController : Controller     {         LocationContext db = new LocationContext();           public async Task<ActionResult> Index()         {             var locations = await db.Locations.ToListAsync();               return View(locations);         }     } Notice above the call to the new ToListAsync method with the await keyword. When the web server reaches this code it initiates the database request, but rather than blocking while waiting for the results to come back, the thread that is processing the request returns to the thread pool, allowing ASP.NET to process another incoming request with the same thread. In other words, a thread is only consumed when there is actual processing work to do, allowing the web server to handle more concurrent requests with the same resources. A more detailed walkthrough covering async in EF is available with additional information and examples. Also a walkthrough is available showing how to use async in an ASP.NET MVC application. Custom Conventions When working with EF Code First, the default behavior is to map .NET classes to tables using a set of conventions baked into EF. For example, Code First will detect properties that end with “ID” and configure them automatically as primary keys. However, sometimes you cannot or do not want to follow those conventions and would rather provide your own. For example, maybe your primary key properties all end in “Key” instead of “Id”. Custom conventions allow the default conventions to be overridden or new conventions to be added so that Code First can map by convention using whatever rules make sense for your project. The following code demonstrates using custom conventions to set the precision of all decimals to 5. As with other Code First configuration, this code is placed in the OnModelCreating method which is overridden on your derived DbContext class:         protected override void OnModelCreating(DbModelBuilder modelBuilder)         {             modelBuilder.Properties<decimal>()                 .Configure(x => x.HasPrecision(5));           } But what if there are a couple of places where a decimal property should have a different precision? Just as with all the existing Code First conventions, this new convention can be overridden for a particular property simply by explicitly configuring that property using either the fluent API or a data annotation. A more detailed description of custom code first conventions is available here. Community Involvement I blogged a while ago about EF being released under an open source license.  Since then a number of community members have made contributions and these are included in EF6 alpha 2. Two examples of community contributions are: AlirezaHaghshenas contributed a change that increases the startup performance of EF for larger models by improving the performance of view generation. The change means that it is less often necessary to use of pre-generated views. UnaiZorrilla contributed the first community feature to EF: the ability to load all Code First configuration classes in an assembly with a single method call like the following: protected override void OnModelCreating(DbModelBuilder modelBuilder) {        modelBuilder.Configurations            .AddFromAssembly(typeof(LocationContext).Assembly); } This code will find and load all the classes that inherit from EntityTypeConfiguration<T> or ComplexTypeConfiguration<T> in the assembly where LocationContext is defined. This reduces the amount of coupling between the context and Code First configuration classes, and is also a very convenient shortcut for large models. Other upcoming features coming in EF 6 Lots of information about the development of EF6 can be found on the EF CodePlex site, including a roadmap showing the other features that are planned for EF6. One of of the nice upcoming features is connection resiliency, which will automate the process of retying database operations on transient failures common in cloud environments and with databases such as the Windows Azure SQL Database. Another often requested feature that will be included in EF6 is the ability to map stored procedures to query and update operations on entities when using Code First. Summary EF6 is the first open source release of Entity Framework being developed in CodePlex. The alpha 2 preview release of EF6 is now available on NuGet, and contains some really great features for you to try. The EF team are always looking for feedback from developers - especially on the new features such as custom Code First conventions and async support. To provide feedback you can post a comment on the EF6 alpha 2 announcement post, start a discussion or file a bug on the CodePlex site. Hope this helps, Scott P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

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  • SharePoint 2010 HierarchicalConfig Caching Problem

    - by Damon
    We've started using the Application Foundations for SharePoint 2010 in some of our projects at work, and I came across a nasty issue with the hierarchical configuration settings.  I have some settings that I am storing at the Farm level, and as I was testing my code it seemed like the settings were not being saved - at least that is what it appeared was the case at first.  However, I happened to reset IIS and the settings suddenly appeared.  Immediately, I figured that it must be a caching issue and dug into the code base.  I found that there was a 10 second caching mechanism in the SPFarmPropertyBag and the SPWebAppPropertyBag classes.  So I ran another test where I waited 10 seconds to make sure that enough time had passed to force the caching mechanism to reset the data.  After 10 minutes the cache had still not cleared.  After digging a bit further, I found a double lock check that looked a bit off in the GetSettingsStore() method of the SPFarmPropertyBag class: if (_settingStore == null || (DateTime.Now.Subtract(lastLoad).TotalSeconds) > cacheInterval)) { //Need to exist so don't deadlock. rrLock.EnterWriteLock(); try { //make sure first another thread didn't already load... if (_settingStore == null) { _settingStore = WebAppSettingStore.Load(this.webApplication); lastLoad = DateTime.Now; } } finally { rrLock.ExitWriteLock(); } } What ends up happening here is the outer check determines if the _settingStore is null or the cache has expired, but the inner check is just checking if the _settingStore is null (which is never the case after the first time it's been loaded).  Ergo, the cached settings are never reset.  The fix is really easy, just add the cache checking back into the inner if statement. //make sure first another thread didn't already load... if (_settingStore == null || (DateTime.Now.Subtract(lastLoad).TotalSeconds) > cacheInterval) { _settingStore = WebAppSettingStore.Load(this.webApplication); lastLoad = DateTime.Now; } And then it starts working just fine. as long as you wait at least 10 seconds for the cache to clear.

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  • Best way to determine surface normal for a group of pixels?

    - by Paul Renton
    One of my current endeavors is creating a 2D destructible terrain engine for iOS Cocos2D (See https://github.com/crebstar/PWNDestructibleTerrain ). It is in an infant stages no doubt, but I have made significant progress since starting a couple weeks ago. However, I have run into a bit of a performance road block with calculating surface normals. Note: For my destructible terrain engine, an alpha of 0 is considered to not be solid ground. The method posted below works just great given small rectangles, such as n < 30. Anything above 30 causes a dip in the frame rate. If you approach 100x100 then you might as well read a book while the sprite attempts to traverse the terrain. At the moment this is the best I can come up with for altering the angle on a sprite as it roams across terrain (to get the angle for a sprite's orientation just take dot product of 100 * normal * (1,0) vector). -(CGPoint)getAverageSurfaceNormalAt:(CGPoint)pt withRect:(CGRect)area { float avgX = 0; float avgY = 0; ccColor4B color = ccc4(0, 0, 0, 0); CGPoint normal; float len; for (int w = area.size.width; w >= -area.size.width; w--) { for (int h = area.size.height; h >= -area.size.height; h--) { CGPoint pixPt = ccp(w + pt.x, h + pt.y); if ([self pixelAt:pixPt colorCache:&color]) { if (color.a != 0) { avgX -= w; avgY -= h; } // end inner if } // end outer if } // end inner for } // end outer for len = sqrtf(avgX * avgX + avgY * avgY); if (len == 0) { normal = ccp(avgX, avgY); } else { normal = ccp(avgX/len, avgY/len); } // end if return normal; } // end get My problem is I have sprites that require larger rectangles in order for their movement to look realistic. I considered doing a cache of all surface normals, but this lead to issues of knowing when to recalculate the surface normals and these calculations also being quite expensive (also how large should the blocks be?). Another smaller issue is I don't know how to properly treat the case when length is = 0. So I am stuck... Any advice from the community would be greatly appreciated! Is my method the best possible one? Or should I rethink the algorithm? I am new to game development and always looking to learn new tips and tricks.

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  • AND is better or using Internal "IF"

    - by BDotA
    In a situation like this:" if ((metadata != null) && (metadata.TypeEnum != VariantInfoMetadata.CellTypeEnum.Status)) do you recommend to keep the code as it is above or do you think it is better to make an internal "if" statement and brake that AND into two sections where "outer if" makes sure metadata is not null and inner if does the rest of the checking. I think this way will take care of possible null refrence exception if value of metadata gets null?

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  • Can I benefit from links to pages on my site which have a `noindex` meta tag?

    - by Noam
    I'm trying to understand if/how I can benefit from people linking to pages on my site which are with pages that have a noindex meta tag. 2 actions I'm considering to perform: Remove the robots.txt disallow to these pages, to make sure inner links get the propagated link juice. Adding a canonical tag to the most similar page that doesn't have a noindex meta tag Are these valid approaches that might help? Any others I should consider?

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  • Sql statement return with zero result [closed]

    - by foodil
    I am trying to choose the row where 1)list.ispublic = 1 2)userlist.userid='aaa' AND userlist.listid=list.listid I need 1)+2) There is a row already but this statement can not get that row, is there any problem? List table: ListID ListName Creator IsRemindSub IsRemindUnSub IsPublic CreateDate LastModified Reminder 1 test2 aaa 0 0 1 2012-03-09 NULL NULL user_list table (No row): UserID ListID UserRights My test version SELECT l.*, ul.* FROM list l INNER JOIN user_list ul ON ul.ListID = l.ListID WHERE l.IsPublic = 1 AND ul.UserID = 'aaa' There is zero result. How can I fix that?

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  • "Collection Wrapper" pattern - is this common?

    - by Prog
    A different question of mine had to do with encapsulating member data structures inside classes. In order to understand this question better please read that question and look at the approach discussed. One of the guys who answered that question said that the approach is good, but if I understood him correctly - he said that there should be a class existing just for the purpose of wrapping the collection, instead of an ordinary class offering a number of public methods just to access the member collection. For example, instead of this: class SomeClass{ // downright exposing the concrete collection. Things[] someCollection; // other stuff omitted Thing[] getCollection(){return someCollection;} } Or this: class SomeClass{ // encapsulating the collection, but inflating the class' public interface. Thing[] someCollection; // class functionality omitted. public Thing getThing(int index){ return someCollection[index]; } public int getSize(){ return someCollection.length; } public void setThing(int index, Thing thing){ someCollection[index] = thing; } public void removeThing(int index){ someCollection[index] = null; } } We'll have this: // encapsulating the collection - in a different class, dedicated to this. class SomeClass{ CollectionWrapper someCollection; CollectionWrapper getCollection(){return someCollection;} } class CollectionWrapper{ Thing[] someCollection; public Thing getThing(int index){ return someCollection[index]; } public int getSize(){ return someCollection.length; } public void setThing(int index, Thing thing){ someCollection[index] = thing; } public void removeThing(int index){ someCollection[index] = null; } } This way, the inner data structure in SomeClass can change without affecting client code, and without forcing SomeClass to offer a lot of public methods just to access the inner collection. CollectionWrapper does this instead. E.g. if the collection changes from an array to a List, the internal implementation of CollectionWrapper changes, but client code stays the same. Also, the CollectionWrapper can hide certain things from the client code - from example, it can disallow mutation to the collection by not having the methods setThing and removeThing. This approach to decoupling client code from the concrete data structure seems IMHO pretty good. Is this approach common? What are it's downfalls? Is this used in practice?

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  • What's so useful about closures (in JS)?

    - by Mark Bubel
    In my quest to understand closures in the context of JS, I find myself asking why do you even need to use closures? What's so great about having an inner function be able to access the parent function's variables even after the parent function returns? I'm not even sure I asked that question correctly because I don't understand how to use them. Can someone give a real world example in JS where a closure is more beneficial vs. the alternative, whatever that may be?

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  • career in Mobile sw/Application Development [closed]

    - by pramod
    i m planning to do a course on Wireless & mobile computing.The syllabus are given below.Please check & let me know whether its worth to do.How is the job prospects after that.I m a fresher & from electronic Engg.The modules are- *Wireless and Mobile Computing (WiMC) – Modules* C, C++ Programming and Data Structures 100 Hours C Revision C, C++ programming tools on linux(Vi editor, gdb etc.) OOP concepts Programming constructs Functions Access Specifiers Classes and Objects Overloading Inheritance Polymorphism Templates Data Structures in C++ Arrays, stacks, Queues, Linked Lists( Singly, Doubly, Circular) Trees, Threaded trees, AVL Trees Graphs, Sorting (bubble, Quick, Heap , Merge) System Development Methodology 18 Hours Software life cycle and various life cycle models Project Management Software: A Process Various Phases in s/w Development Risk Analysis and Management Software Quality Assurance Introduction to Coding Standards Software Project Management Testing Strategies and Tactics Project Management and Introduction to Risk Management Java Programming 110 Hours Data Types, Operators and Language Constructs Classes and Objects, Inner Classes and Inheritance Inheritance Interface and Package Exceptions Threads Java.lang Java.util Java.awt Java.io Java.applet Java.swing XML, XSL, DTD Java n/w programming Introduction to servlet Mobile and Wireless Technologies 30 Hours Basics of Wireless Technologies Cellular Communication: Single cell systems, multi-cell systems, frequency reuse, analog cellular systems, digital cellular systems GSM standard: Mobile Station, BTS, BSC, MSC, SMS sever, call processing and protocols CDMA standard: spread spectrum technologies, 2.5G and 3G Systems: HSCSD, GPRS, W-CDMA/UMTS,3GPP and international roaming, Multimedia services CDMA based cellular mobile communication systems Wireless Personal Area Networks: Bluetooth, IEEE 802.11a/b/g standards Mobile Handset Device Interfacing: Data Cables, IrDA, Bluetooth, Touch- Screen Interfacing Wireless Security, Telemetry Java Wireless Programming and Applications Development(J2ME) 100 Hours J2ME Architecture The CLDC and the KVM Tools and Development Process Classification of CLDC Target Devices CLDC Collections API CLDC Streams Model MIDlets MIDlet Lifecycle MIDP Programming MIDP Event Architecture High-Level Event Handling Low-Level Event Handling The CLDC Streams Model The CLDC Networking Package The MIDP Implementation Introduction to WAP, WML Script and XHTML Introduction to Multimedia Messaging Services (MMS) Symbian Programming 60 Hours Symbian OS basics Symbian OS services Symbian OS organization GUI approaches ROM building Debugging Hardware abstraction Base porting Symbian OS reference design porting File systems Overview of Symbian OS Development – DevKits, CustKits and SDKs CodeWarrior Tool Application & UI Development Client Server Framework ECOM STDLIB in Symbian iPhone Programming 80 Hours Introducing iPhone core specifications Understanding iPhone input and output Designing web pages for the iPhone Capturing iPhone events Introducing the webkit CSS transforms transitions and animations Using iUI for web apps Using Canvas for web apps Building web apps with Dashcode Writing Dashcode programs Debugging iPhone web pages SDK programming for web developers An introduction to object-oriented programming Introducing the iPhone OS Using Xcode and Interface builder Programming with the SDK Toolkit OS Concepts & Linux Programming 60 Hours Operating System Concepts What is an OS? Processes Scheduling & Synchronization Memory management Virtual Memory and Paging Linux Architecture Programming in Linux Linux Shell Programming Writing Device Drivers Configuring and Building GNU Cross-tool chain Configuring and Compiling Linux Virtual File System Porting Linux on Target Hardware WinCE.NET and Database Technology 80 Hours Execution Process in .NET Environment Language Interoperability Assemblies Need of C# Operators Namespaces & Assemblies Arrays Preprocessors Delegates and Events Boxing and Unboxing Regular Expression Collections Multithreading Programming Memory Management Exceptions Handling Win Forms Working with database ASP .NET Server Controls and client-side scripts ASP .NET Web Server Controls Validation Controls Principles of database management Need of RDBMS etc Client/Server Computing RDBMS Technologies Codd’s Rules Data Models Normalization Techniques ER Diagrams Data Flow Diagrams Database recovery & backup SQL Android Application 80 Hours Introduction of android Why develop for android Android SDK features Creating android activities Fundamental android UI design Intents, adapters, dialogs Android Technique for saving data Data base in Androids Maps, Geocoding, Location based services Toast, using alarms, Instant messaging Using blue tooth Using Telephony Introducing sensor manager Managing network and wi-fi connection Advanced androids development Linux kernel security Implement AIDL Interface. Project 120 Hours

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  • Silverlight Cream for February 21, 2011 -- #1049

    - by Dave Campbell
    In this Issue: Rob Eisenberg(-2-), Gill Cleeren, Colin Eberhardt, Alex van Beek, Ishai Hachlili, Ollie Riches, Kevin Dockx, WindowsPhoneGeek(-2-), Jesse Liberty(-2-), and John Papa. Above the Fold: Silverlight: "Silverlight 4: Creating useful base classes for your views and viewmodels with PRISM 4" Alex van Beek WP7: "Google Sky on Windows Phone 7" Colin Eberhardt Shoutouts: My friends at SilverlightShow have their top 5 for last week posted: SilverlightShow for Feb 14 - 20, 2011 From SilverlightCream.com: Rob Eisenberg MVVMs Us with Caliburn.Micro! Rob Eisenberg chats with Carl and Richard on .NET Rocks episode 638 about Caliburn.Micro which takes Convention-over-Configuration further, utilizing naming conventions to handle a large number of data binding, validation and other action-based characteristics in your app. Two Caliburn Releases in One Day! Rob Eisenberg also announced that release candidates for both Caliburn 2.0 and Caliburn.Micro 1.0 are now available. Check out the docs and get the bits. Getting ready for Microsoft Silverlight Exam 70-506 (Part 6) Gill Cleeren has Part 6 of his series on getting ready for the Silverlight Exam up at SilverlightShow.... this time out, Gill is discussing app startup, localization, and using resource dictionaries, just to name a few things. Google Sky on Windows Phone 7 Colin Eberhardt has a very cool WP7 app described where he's using Google Sky as the tile source for Bing Maps, and then has a list of 110 Messier Objects.. interesting astronomical objects that you can look at... all with source! Silverlight 4: Creating useful base classes for your views and viewmodels with PRISM 4 Alex van Beek has some Prism4/Unity MVVM goodness up with this discussion of a login module using View and ViewModel base classes. Windows Phone 7 and WCF REST – Authentication Solutions Ishai Hachlili sent me this link to his post about WCF REST web service and authentication for WP7, and he offers up 2 solutions... from the looks of this, I'm also putting his blog on my watch list WP7Contrib: Isolated Storage Cache Provider Ollie Riches has a complete explanation and code example of using the IsolatedStorageCacheProvider in their WP7Contrib library. Using a ChannelFactory in Silverlight, part two: binary cows & new-born calves Kevin Dockx follows-up his post on Channel Factories with this part 2, expanding the knowledge-base into usin parameters and custom binding with binary encoding, both from reader suggestions. All about UriMapping in WP7 WindowsPhoneGeek has a post up about URI mappings in WP7 ... what it is, how to enable it in code behind or XAML, then using it either with a hyperlink button or via the NavigationService class... all with code. Passing WP7 Memory Consumption requirements with the Coding4Fun MemoryCounter tool WindowsPhoneGeek's latest is a tutorial on the use of the Memory Counter control from the Coding4Fun toolkit and WP7 Memory consumption. Getting Started With Linq Jesse Liberty gets into LINQ in his Episode 33 of his WP7 'From Scratch' series... looks like a good LINQ starting point, and he's going to be doing a series on it. Linq with Objects In his second post on LINQ, Jesse Liberty is looking at creating a Linq query against a collection of objects... always good stuff, Jesse! Silverlight TV Silverlight TV 62: The Silverlight 5 Triad Unplugged John Papa is joined by Sam George, Larry Olson, and Vijay Devetha (the Silverlight Triad) on this Silverlight TV episode 62 to discuss how the team works together, and hey... they're hiring! Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Copy New Files Only in .NET

    - by psheriff
    Recently I had a client that had a need to copy files from one folder to another. However, there was a process that was running that would dump new files into the original folder every minute or so. So, we needed to be able to copy over all the files one time, then also be able to go back a little later and grab just the new files. After looking into the System.IO namespace, none of the classes within here met my needs exactly. Of course I could build it out of the various File and Directory classes, but then I remembered back to my old DOS days (yes, I am that old!). The XCopy command in DOS (or the command prompt for you pure Windows people) is very powerful. One of the options you can pass to this command is to grab only newer files when copying from one folder to another. So instead of writing a ton of code I decided to simply call the XCopy command using the Process class in .NET. The command I needed to run at the command prompt looked like this: XCopy C:\Original\*.* D:\Backup\*.* /q /d /y What this command does is to copy all files from the Original folder on the C drive to the Backup folder on the D drive. The /q option says to do it quitely without repeating all the file names as it copies them. The /d option says to get any newer files it finds in the Original folder that are not in the Backup folder, or any files that have a newer date/time stamp. The /y option will automatically overwrite any existing files without prompting the user to press the "Y" key to overwrite the file. To translate this into code that we can call from our .NET programs, you can write the CopyFiles method presented below. C# using System.Diagnostics public void CopyFiles(string source, string destination){  ProcessStartInfo si = new ProcessStartInfo();  string args = @"{0}\*.* {1}\*.* /q /d /y";   args = string.Format(args, source, destination);   si.FileName = "xcopy";  si.Arguments = args;  Process.Start(si);} VB.NET Imports System.Diagnostics Public Sub CopyFiles(source As String, destination As String)  Dim si As New ProcessStartInfo()  Dim args As String = "{0}\*.* {1}\*.* /q /d /y"   args = String.Format(args, source, destination)   si.FileName = "xcopy"  si.Arguments = args  Process.Start(si)End Sub The CopyFiles method first creates a ProcessStartInfo object. This object is where you fill in name of the command you wish to run and also the arguments that you wish to pass to the command. I created a string with the arguments then filled in the source and destination folders using the string.Format() method. Finally you call the Start method of the Process class passing in the ProcessStartInfo object. That's all there is to calling any command in the operating system. Very simple, and much less code than it would have taken had I coded it using the various File and Directory classes. Good Luck with your Coding,Paul Sheriff ** SPECIAL OFFER FOR MY BLOG READERS **Visit http://www.pdsa.com/Event/Blog for a free video on Silverlight entitled Silverlight XAML for the Complete Novice - Part 1.  

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  • Where should you put constants and why?

    - by Tim Meyer
    In our mostly large applications, we usually have a only few locations for constants: One class for GUI and internal contstants (Tab Page titles, Group Box titles, calculation factors, enumerations) One class for database tables and columns (this part is generated code) plus readable names for them (manually assigned) One class for application messages (logging, message boxes etc) The constants are usually separated into different structs in those classes. In our C++ applications, the constants are only defined in the .h file and the values are assigned in the .cpp file. One of the advantages is that all strings etc are in one central place and everybody knows where to find them when something must be changed. This is especially something project managers seem to like as people come and go and this way everybody can change such trivial things without having to dig into the application's structure. Also, you can easily change the title of similar Group Boxes / Tab Pages etc at once. Another aspect is that you can just print that class and give it to a non-programmer who can check if the captions are intuitive, and if messages to the user are too detailed or too confusing etc. However, I see certain disadvantages: Every single class is tightly coupled to the constants classes Adding/Removing/Renaming/Moving a constant requires recompilation of at least 90% of the application (Note: Changing the value doesn't, at least for C++). In one of our C++ projects with 1500 classes, this means around 7 minutes of compilation time (using precompiled headers; without them it's around 50 minutes) plus around 10 minutes of linking against certain static libraries. Building a speed optimized release through the Visual Studio Compiler takes up to 3 hours. I don't know if the huge amount of class relations is the source but it might as well be. You get driven into temporarily hard-coding strings straight into code because you want to test something very quickly and don't want to wait 15 minutes just for that test (and probably every subsequent one). Everybody knows what happens to the "I will fix that later"-thoughts. Reusing a class in another project isn't always that easy (mainly due to other tight couplings, but the constants handling doesn't make it easier.) Where would you store constants like that? Also what arguments would you bring in order to convince your project manager that there are better concepts which also comply with the advantages listed above? Feel free to give a C++-specific or independent answer. PS: I know this question is kind of subjective but I honestly don't know of any better place than this site for this kind of question. Update on this project I have news on the compile time thing: Following Caleb's and gbjbaanb's posts, I split my constants file into several other files when I had time. I also eventually split my project into several libraries which was now possible much easier. Compiling this in release mode showed that the auto-generated file which contains the database definitions (table, column names and more - more than 8000 symbols) and builds up certain hashes caused the huge compile times in release mode. Deactivating MSVC's optimizer for the library which contains the DB constants now allowed us to reduce the total compile time of your Project (several applications) in release mode from up to 8 hours to less than one hour! We have yet to find out why MSVC has such a hard time optimizing these files, but for now this change relieves a lot of pressure as we no longer have to rely on nightly builds only. That fact - and other benefits, such as less tight coupling, better reuseability etc - also showed that spending time splitting up the "constants" wasn't such a bad idea after all ;-)

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  • How to safely copy an object?

    - by Prog
    This question is going to be a little long. Please bear with me. Something that happened in a project of mine made me think about how to safely copy objects. I'll present the situation I had and then ask a question. There was a class SomeClass: class SomeClass{ Thing[] things; public SomeClass(Thing[] things){ this.things = things; } // irrelevant stuff omitted public SomeClass copy(){ return new SomeClass(things); } } There was another class Processor that takes SomeClass objects, copies them (via someClassInstance.copy()), manipulates the copy's state, and returns the copy. Here it is: class Processor{ public SomeClass processObject(SomeClass object){ SomeClass copy = object.copy(); manipulateTheCopy(copy); return copy; } // irrelevant stuff omitted } I ran this, and it had bugs. I looked into these bugs, and it turned out that the manipulations Processor does on copy actually affect not only the copy, but also the original SomeClass object that was passed into processObject. I found out that it was because the original and the copy shared state - because the original passed it's field things into the copy when creating it. This made me realize that copying objects is harder than simply instantiating them with the same fields as the original. For the two objects to be completely disconnected, without any shared state, each of the fields passed to the copy also has to be copied. And if that object contains other objects - they have to be copied too. And so on. So basically, in order to be able to actually copy an object, each class in the system must have a copy() method, that also invokes copy() on all of it's fields, and so on. So for example, for copy() in SomeClass to work, it needs to look like this: public SomeClass copy(){ Thing[] copyThings = new Thing[things.length]; for(int i=0; i<things.length; i++) copyThings[i] = things[i].copy(); return new SomeClass(copyThings); } And if Thing has object fields of it's own, than it's own copy() method must be appropriate: class Thing{ Apple apple; Pencil pencil; int number; public Thing(Apple apple, Pencil pencil, int number){ this.apple = apple; this.pencil = pencil; this.number = number; } public Thing copy(){ // 'number' is a primitve. return new Thing(apple.getCopy(), pencil.getCopy(), number); } } And so on. Of course, instead of all classes having a copy() method, the copying mechanism can happen in all of the getters and the constructors of classes (unless places where it isn't suitable, for example when the field points to an external object, not to an object that 'is part' of this object). Still, that means that in order to be able to safely copy an object - most classes would have to have copying mechanisms in their getters. My question is divided into two parts: How frequently do you need to get a copy of an object? Is this a regular issue? Is the technique described common and/or reasonable? Or is there a better way to make safe copies of objects? Or is there an easier way to safely copy objects, without them sharing any state?

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  • C#&ndash;Using a delegate to raise an event from one class to another

    - by Bill Osuch
    Even though this may be a relatively common task for many people, I’ve had to show it to enough new developers that I figured I’d immortalize it… MSDN says “Events enable a class or object to notify other classes or objects when something of interest occurs. The class that sends (or raises) the event is called the publisher and the classes that receive (or handle) the event are called subscribers.” Any time you add a button to a Windows Form or Web app, you can subscribe to the OnClick event, and you can also create your own event handlers to pass events between classes. Here I’ll show you how to raise an event from a separate class to a console application (or Windows Form). First, create a console app project (you could create a Windows Form, but this is easier for this demo). Add a class file called MyEvent.cs (it doesn’t really need to be a separate file, this is just for clarity) with the following code: public delegate void MyHandler1(object sender, MyEvent e); public class MyEvent : EventArgs {     public string message; } Your event can have whatever public properties you like; here we’re just got a single string. Next, add a class file called WorkerDLL.cs; this will simulate the class that would be doing all the work in the project. Add the following code: class WorkerDLL {     public event MyHandler1 Event1;     public WorkerDLL()     {     }     public void DoWork()     {         FireEvent("From Worker: Step 1");         FireEvent("From Worker: Step 5");         FireEvent("From Worker: Step 10");     }     private void FireEvent(string message)     {         MyEvent e1 = new MyEvent();         e1.message = message;         if (Event1 != null)         {             Event1(this, e1);         }         e1 = null;     } } Notice that the FireEvent method creates an instance of the MyEvent class and passes it to the Event1 handler (which we’ll create in just a second). Finally, add the following code to Program.cs: static void Main(string[] args) {     Program p = new Program(args); } public Program(string[] args) {     Console.WriteLine("From Console: Creating DLL");     WorkerDLL wd = new WorkerDLL();     Console.WriteLine("From Console: Wiring up event handler");     WireEventHandlers(wd);     Console.WriteLine("From Console: Doing the work");     wd.DoWork();     Console.WriteLine("From Console: Done - press any key to finish.");     Console.ReadLine(); } private void WireEventHandlers(WorkerDLL wd) {     MyHandler1 handler = new MyHandler1(OnHandler1);     wd.Event1 += handler; } public void OnHandler1(object sender, MyEvent e) {     Console.WriteLine(e.message); } The OnHandler1 method is called any time the event handler “hears” an event matching the specified signature – you could have it log to a file, write to a database, etc. Run the app in debug mode and you should see output like this: You can distinctly see which lines were written by the console application itself (Program.cs) and which were written by the worker class (WorkerDLL.cs). Technorati Tags: Csharp

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  • Appropriate design / technologies to handle dynamic string formatting?

    - by Mark W
    recently I was tasked with implementing a way of adding support for versioning of hardware packet specifications to one of our libraries. First a bit of information about the project. We have a hardware library which has classes for each of the various commands we support sending to our hardware. These hardware modules are essentially just lights with a few buttons, and a 2 or 4 digit display. The packets typically follow the format {SOH}AADD{ETX}, where AA is our sentinel action code, and DD is the device ID. These packet specs are different from one command to the next obviously, and the different firmware versions we have support different specifications. For example, on version 1 an action code of 14 may have a spec of {SOH}AADDTEXT{ETX} which would be AA = 14 literal, DD = device ID, TEXT = literal text to display on the device. Then we come out with a revision with adds an extended byte(s) onto the end of the packet like this {SOH}AADDTEXTE{ETX}. Assume the TEXT field is fixed width for this example. We have now added a new field onto the end which could be used to say specify the color or flash rate of the text/buttons. Currently this java library only supports one version of the commands, the latest. In our hardware library we would have a class for this command, say a DisplayTextArgs.java. That class would have fields for the device ID, the text, and the extended byte. The command class would expose a method which generates the string ("{SOH}AADDTEXTE{ETX}") using the value from the class. In practice we would create the Args class as needed, populate the fields, call the method to get our packet string, then ship that down across the CAN. Some of our other commands specification can vary for the same command, on the same version, depending on some runtime state. For example, another command for version 1 may be {SOH}AA{ETX}, where this action code clears all of the modules behind a specific controller device of their text. We may overload this packet to have option fields with multiple meanings like {SOH}AAOC{ETX} where OC is literal text, which tells the controller to only clear text on a specific module type, and to leave the others alone, or the spec could also have an option format of {SOH}AADD{ETX} to clear the text off a a specific device. Currently, in the method which generates the packet string, we would evaluate fields on the args class to determine which spec we will be using when formatting the packet. For this example, it would be along the lines of: if m_DeviceID != null then use {SOH}AADD{ETX} else if m_ClearOCs == true then use {SOH}AAOC{EXT} else use {SOH}AA{ETX} I had considered using XML, or a database to store String.format format strings, which were linked to firmware version numbers in some table. We would load them up at startup, and pass in the version number of the hardwares firmware we are currently using (I can query the devices for their firmware version, but the version is not included in all packets as part of the spec). This breaks down pretty quickly because of the dynamic nature of how we select which version of the command to use. I then considered using a rule engine to possibly build out expressions which could be interpreted at runtume, to evaluate the args class's state, and from that select the appropriate format string to use, but my brief look at rule engines for java scared me away with its complexity. While it seems like it might be a viable solution, it seems overly complex. So this is why I am here. I wouldn't say design is my strongest skill, and im having trouble figuring out the best way to approach this problem. I probably wont be able to radically change the args classes, but if the trade off was good enough, I may be able to convince my boss that the change is appropriate. What I would like from the community is some feedback on some best practices / design methodologies / API or other resources which I could use to accomplish: Logic to determine which set of commands to use for a given firmware version Of those command, which version of each command to use (based on the args classes state) Keep the rules logic decoupled from the application so as to avoid needing releases for every firmware version Be simple enough so I don't need weeks of study and trial and error to implement effectively.

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  • Error deploying Spring with JAX-WS application in Jboss 6 server

    - by arlahiru
    I'm getting this error when I deploying spring+JAX-WS application in jboss server 6.1.0. 09:14:38,175 ERROR [org.springframework.web.context.ContextLoader] Context initialization failed: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.sun.xml.ws.transport.http.servlet.SpringBinding#0' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Cannot create inner bean '(inner bean)' of type [org.jvnet.jax_ws_commons.spring.SpringService] while setting bean property 'service'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': FactoryBean threw exception on object creation; nested exception is java.lang.LinkageError: loader constraint violation: when resolving field "DATETIME" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the referring class, javax/xml/datatype/DatatypeConstants, and the class loader (instance of <bootloader>) for the field's resolved type, loader constraint violation: when resolving field "DATETIME" the class loader at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230) [:2.5.6] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122) [:2.5.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245) [:2.5.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010) [:2.5.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472) [:2.5.6] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) [:2.5.6] at java.security.AccessController.doPrivileged(Native Method) [:1.7.0_05] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) [:2.5.6] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) [:2.5.6] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) [:2.5.6] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) [:2.5.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) [:2.5.6] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) [:2.5.6] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429) [:2.5.6] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728) [:2.5.6] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380) [:2.5.6] at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) [:2.5.6] at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) [:2.5.6] at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) [:2.5.6] at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3369) [:6.1.0.Final] at org.apache.catalina.core.StandardContext.start(StandardContext.java:3828) [:6.1.0.Final] at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:294) [:6.1.0.Final] at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:146) [:6.1.0.Final] at org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:476) [:6.1.0.Final] at org.jboss.web.deployers.WebModule.startModule(WebModule.java:118) [:6.1.0.Final] at org.jboss.web.deployers.WebModule.start(WebModule.java:95) [:6.1.0.Final] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.7.0_05] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.7.0_05] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.7.0_05] at java.lang.reflect.Method.invoke(Method.java:601) [:1.7.0_05] at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157) [:6.0.0.GA] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96) [:6.0.0.GA] at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) [:6.0.0.GA] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:271) [:6.0.0.GA] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:670) [:6.0.0.GA] at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206) [:2.2.0.SP2] at $Proxy41.start(Unknown Source) at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:53) [:2.2.0.SP2] at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:41) [:2.2.0.SP2] at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:379) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:301) [:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:2044) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:1083) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.executeOrIncrementStateDirectly(AbstractController.java:1322) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1246) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1139) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:939) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:654) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.system.ServiceController.doChange(ServiceController.java:671) [:6.1.0.Final (Build SVNTag:JBoss_6.1.0.Final date: 20110816)] at org.jboss.system.ServiceController.start(ServiceController.java:443) [:6.1.0.Final (Build SVNTag:JBoss_6.1.0.Final date: 20110816)] at org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:189) [:6.1.0.Final] at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:102) [:6.1.0.Final] at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:49) [:6.1.0.Final] at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:63) [:2.2.2.GA] at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:55) [:2.2.2.GA] at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:179) [:2.2.2.GA] at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1832) [:2.2.2.GA] at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1550) [:2.2.2.GA] at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1571) [:2.2.2.GA] at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1491) [:2.2.2.GA] at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:379) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:2044) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:1083) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.executeOrIncrementStateDirectly(AbstractController.java:1322) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1246) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1139) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:939) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:654) [jboss-dependency.jar:2.2.0.SP2] at org.jboss.deployers.plugins.deployers.DeployersImpl.change(DeployersImpl.java:1983) [:2.2.2.GA] at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:1076) [:2.2.2.GA] at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:679) [:2.2.2.GA] at org.jboss.system.server.profileservice.deployers.MainDeployerPlugin.process(MainDeployerPlugin.java:106) [:6.1.0.Final] at org.jboss.profileservice.dependency.ProfileControllerContext$DelegateDeployer.process(ProfileControllerContext.java:143) [:0.2.2] at org.jboss.profileservice.plugins.deploy.actions.DeploymentStartAction.doPrepare(DeploymentStartAction.java:98) [:0.2.2] at org.jboss.profileservice.management.actions.AbstractTwoPhaseModificationAction.prepare(AbstractTwoPhaseModificationAction.java:101) [:0.2.2] at org.jboss.profileservice.management.ModificationSession.prepare(ModificationSession.java:87) [:0.2.2] at org.jboss.profileservice.management.AbstractActionController.internalPerfom(AbstractActionController.java:234) [:0.2.2] at org.jboss.profileservice.management.AbstractActionController.performWrite(AbstractActionController.java:213) [:0.2.2] at org.jboss.profileservice.management.AbstractActionController.perform(AbstractActionController.java:150) [:0.2.2] at org.jboss.profileservice.plugins.deploy.AbstractDeployHandler.startDeployments(AbstractDeployHandler.java:168) [:0.2.2] at org.jboss.profileservice.management.upload.remoting.DeployHandlerDelegate.startDeployments(DeployHandlerDelegate.java:74) [:6.1.0.Final] at org.jboss.profileservice.management.upload.remoting.DeployHandler.invoke(DeployHandler.java:156) [:6.1.0.Final] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967) [:6.1.0.Final] at org.jboss.remoting.transport.socket.ServerThread.completeInvocation(ServerThread.java:791) [:6.1.0.Final] at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:744) [:6.1.0.Final] at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:548) [:6.1.0.Final] at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:234) [:6.1.0.Final] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)': FactoryBean threw exception on object creation; nested exception is java.lang.LinkageError: loader constraint violation: when resolving field "DATETIME" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the referring class, javax/xml/datatype/DatatypeConstants, and the class loader (instance of <bootloader>) for the field's resolved type, loader constraint violation: when resolving field "DATETIME" the class loader at org.springframework.beans.factory.support.FactoryBeanRegistrySupport$1.run(FactoryBeanRegistrySupport.java:127) [:2.5.6] at java.security.AccessController.doPrivileged(Native Method) [:1.7.0_05] at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116) [:2.5.6] at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:98) [:2.5.6] at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:223) [:2.5.6] ... 89 more Caused by: java.lang.LinkageError: loader constraint violation: when resolving field "DATETIME" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the referring class, javax/xml/datatype/DatatypeConstants, and the class loader (instance of <bootloader>) for the field's resolved type, loader constraint violation: when resolving field "DATETIME" the class loader at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl.<clinit>(RuntimeBuiltinLeafInfoImpl.java:263) [:2.2] at com.sun.xml.bind.v2.model.impl.RuntimeTypeInfoSetImpl.<init>(RuntimeTypeInfoSetImpl.java:65) [:2.2] at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.createTypeInfoSet(RuntimeModelBuilder.java:133) [:2.2] at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.createTypeInfoSet(RuntimeModelBuilder.java:85) [:2.2] at com.sun.xml.bind.v2.model.impl.ModelBuilder.<init>(ModelBuilder.java:156) [:2.2] at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.<init>(RuntimeModelBuilder.java:93) [:2.2] at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:473) [:2.2] at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:319) [:2.2] at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1170) [:2.2] at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:188) [:2.2] at com.sun.xml.bind.api.JAXBRIContext.newInstance(JAXBRIContext.java:111) [:2.2] at com.sun.xml.ws.developer.JAXBContextFactory$1.createJAXBContext(JAXBContextFactory.java:113) [:2.2.3] at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:166) [:2.2.3] at com.sun.xml.ws.model.AbstractSEIModelImpl$1.run(AbstractSEIModelImpl.java:159) [:2.2.3] at java.security.AccessController.doPrivileged(Native Method) [:1.7.0_05] at com.sun.xml.ws.model.AbstractSEIModelImpl.createJAXBContext(AbstractSEIModelImpl.java:158) [:2.2.3] at com.sun.xml.ws.model.AbstractSEIModelImpl.postProcess(AbstractSEIModelImpl.java:99) [:2.2.3] at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:250) [:2.2.3] at com.sun.xml.ws.server.EndpointFactory.createSEIModel(EndpointFactory.java:343) [:2.2.3] at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:205) [:2.2.3] at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:513) [:2.2.3] at org.jvnet.jax_ws_commons.spring.SpringService.getObject(SpringService.java:333) [:] at org.jvnet.jax_ws_commons.spring.SpringService.getObject(SpringService.java:45) [:] at org.springframework.beans.factory.support.FactoryBeanRegistrySupport$1.run(FactoryBeanRegistrySupport.java:121) [:2.5.6] ... 93 more *** DEPLOYMENTS IN ERROR: Name -> Error vfs:///usr/jboss/jboss-6.1.0.Final/server/default/deploy/SpringWS.war -> org.jboss.deployers.spi.DeploymentException: URL file:/usr/jboss/jboss-6.1.0.Final/server/default/tmp/vfs/automountb159aa6e8c1b8582/SpringWS.war-4ec4d0151b4c7d7/ deployment failed DEPLOYMENTS IN ERROR: Deployment "vfs:///usr/jboss/jboss-6.1.0.Final/server/default/deploy/SpringWS.war" is in error due to the following reason(s): org.jboss.deployers.spi.DeploymentException: URL file:/usr/jboss/jboss-6.1.0.Final/server/default/tmp/vfs/automountb159aa6e8c1b8582/SpringWS.war-4ec4d0151b4c7d7/ deployment failed But this application is workinng correctly in glassfish 3.x server and web service is up and running. I'm using Netbeans IDE in Ubuntu 12.04 to build and deploy the application and I couldn't figure out what is the issue here. I guess its about spring and jboss because its working in glassfish smoothly. Please help me to solve this issue. Thanks all in advance.

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  • Deploying concrete5 on nginx

    - by Nithin
    I have a concrete5 site that works 'out of the box' in apache server. However I am having a lot of trouble running it in nginx. The following is the nginx configuration i am using: server { root /home/test/public; index index.php; access_log /home/test/logs/access.log; error_log /home/test/logs/error.log; location / { # First attempt to serve request as file, then # as directory, then fall back to index.html try_files $uri $uri/ index.php; # Uncomment to enable naxsi on this location # include /etc/nginx/naxsi.rules } # pass the PHP scripts to FastCGI server listening on unix socket # location ~ \.php($|/) { fastcgi_pass unix:/tmp/phpfpm.sock; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_path_info; include fastcgi_params; } location ~ /\.ht { deny all; } } I am able to get the homepage but am having problem with the inner pages. The inner pages display an "Access denied". Possibly the rewrite is not working, in effect I think its querying and trying to execute php files directly instead of going through the concrete dispatcher. I am totally lost here. Thank you for your help, in advance.

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  • SQL Server 2008: Getting Login failed for user "Domain\User". Failed to open the explicitly specified database [CLIENT: IP.ADD.RR.ESS]

    - by GodEater
    This is a very similar issue to " SQL Server 2008 login problem with ASP.NET application: Failed to open the explicitly specified database " which unfortunately seems to have gone unsolved. My issue here is subtly different. Firstly the account failing login is not 'NT AUTHORITY\NETWORK SERVICE' - it's an actual domain account. Secondly, there are two machines involved - I gathered from the first question it was a single machine running both the IIS and SQL instances. The application which is trying to connect to the database is an ASP.NET one running on another server (if that makes any different, I'm not sure it does.) The ConnectionString being used in the web.config for the application is : data source=MySQLServer;initial catalog=MyDatabase;integrated security=sspi; And the Application Pool is set to NetworkService for Identity. So - in the web app, I get the following error : Cannot open database "MyDatabase" requested by the login. The login failed. Login failed for user 'MyDomain\WebServerMachineName$' In the SQL Server logs I see : Login failed for user 'MyDomain\WebServerMachineName$'. Reason: Failed to open the explicitly specified database. [CLIENT: Web.Server.IP.Address] Running this bit of SQL against the database in question : USE [MyDatabase] GO SELECT SDP.name AS [User Name], SDP.type_desc AS [User Type], UPPER(SDPS.name) AS [Database Role] FROM sys.database_principals SDP INNER JOIN sys.database_role_members SDRM ON SDP.principal_id=SDRM.member_principal_id INNER JOIN sys.database_principals SDPS ON SDRM.role_principal_id = SDPS.principal_id Gets me this result : MyDomain\WebServerMachineName$ WINDOWS_USER DB_DDLADMIN MyDomain\WebServerMachineName$ WINDOWS_USER DB_DATAREADER MyDomain\WebServerMachineName$ WINDOWS_USER DB_DATAWRITER Which appears to me to indicate I've got the permissions right. Anyone have any idea why it's not working, or how I can narrow the issue down some more?

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  • Queries passed to SQL Server are getting corrupted

    - by adrianbanks
    We are experiencing a bizarre error with our application at a customer site. We have managed to narrow it down to the point where we can replicate the behaviour using just Management Studio and SQL Server. We have two machines, A and B: +------------+ +--------------------+ | [A] | | [B] | | Management | -------------- | SQL Server 2008 R2 | | Studio | | Enterprise x64 | +------------+ +--------------------+ We are running a SQL script in Management Studio on machine A against the SQL Server instance on machine B. We are not actually executing the script, just parsing it. Most of the time, the parse operation works fine. Occasionally (seemingly randomly), the parse operation fails with a syntax error. The error message shows the part of the script with the error, which appears as some SQL from the original script that has been truncated and has random characters appended to it. An example: The original SQL: SELECT DISTINCT ST.TABLE_NAME as TableName FROM INFORMATION_SCHEMA.TABLES AS ST INNER JOIN INFORMATION_SCHEMA.COLUMNS AS SC ON SC.TABLE_NAME = ST.TABLE_NAME WHERE ST.TABLE_TYPE = 'BASE TABLE' AND SC.COLUMN_NAME = 'Identity' AND ST.TABLE_NAME != 'dtproperties' ORDER BY ST.TABLE_NAME The SQL that is in error (as reported by SQL Server): SELECT DISTINCT ST.TABLE_NAME as TableName FROM INFORMATION_SCHEMA.TABLES AS ST INNER JOIN INFORMATION_SCHEMA.COLUMNS AS SC ON SC.TABLE_NAME = Sa? The above example shows how the query is being corrupted. It doesn't always happen, and is not always the same bit of SQL that causes the error. Parsing this script against another SQL Server instance produces no errors, showing that the script is fine. It appears that something is corrupting the SQL that is being received the the server. This leads me to think that the problem lies either with the client end or in the transmission of the SQL from the client to the server. I have a SQL trace from the period where an error occurs, which shows the SQL has been corrupted when SQL Server receives it. We have been unable to track down any possible cause of this behaviour, and so cannot find a fix. Because the errors occur seemingly randomly, it is also very hard to generate reproduction steps to submit a bug report. Any ideas?

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  • Why am I not able to create a backup plan for TFS?

    - by noocyte
    I am trying to create a backup plan using the TFS Power Tools but I keep running into this error message: I have checked that the account has Full Control on the share, I can edit, create and delete files there. From the log: [Info @07:15:00.403] Starting creating backup test validation [Error @07:15:00.700] Microsoft.SqlServer.Management.Smo.FailedOperationException: Backup failed for Server 'WMSI003714N\SqlExpress'. ---> Microsoft.SqlServer.Management.Common.ExecutionFailureException: An exception occurred while executing a Transact-SQL statement or batch. ---> System.Data.SqlClient.SqlException: Cannot open backup device '\\wmsi003714n\sql dump\Tfs_Configuration_20100910091500.bak'. Operating system error 5(failed to retrieve text for this error. Reason: 1815). BACKUP DATABASE is terminating abnormally. at Microsoft.SqlServer.Management.Common.ConnectionManager.ExecuteTSql(ExecuteTSqlAction action, Object execObject, DataSet fillDataSet, Boolean catchException) at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType) --- End of inner exception stack trace --- at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType) at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(StringCollection sqlCommands, ExecutionTypes executionType) at Microsoft.SqlServer.Management.Smo.ExecutionManager.ExecuteNonQuery(StringCollection queries) at Microsoft.SqlServer.Management.Smo.BackupRestoreBase.ExecuteSql(Server server, StringCollection queries) at Microsoft.SqlServer.Management.Smo.Backup.SqlBackup(Server srv) --- End of inner exception stack trace --- at Microsoft.SqlServer.Management.Smo.Backup.SqlBackup(Server srv) at Microsoft.TeamFoundation.PowerTools.Admin.Helpers.BackupFactory.TestBackupCreation(String path) [Error @07:15:00.731] !Verify Error!: Account GROUPINFRA\SA-NO-TeamService failed to create backups using path \\wmsi003714n\sql dump [Info @07:15:00.731] "Verify: Grant Backup Plan Permissions\Root\VerifyDummyBackupCreation(VerifyTestBackupCreatedSuccessfully): Exiting Verification with state Completed and result Error" Any ideas?

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  • Interpret Objective C scripts at runtime on iPhone?

    - by Brad Parks
    Is there anyway to load an objective c script at runtime, and run it against the classes/methods/objects/functions in the current iPhone app? The reason i ask is that I've been playing around with iPhone wax, a lua interpreter that can be embedded in an iPhone app, and it works very nicely, in the sense that any object/method/function that's publically available in your Objective C code is automatically bridged, and available in lua. This allows you to rapidly prototype applications by simply making the core of your app be lua files that are in the users documents directory. Just reload the app, and you can test out changes to your lua files without needing to rebuild the app in XCode - a big time saver! But, with Apples recent 3.1.3 SDK stuff, it got me thinking that the safest approach for doing this type of rapid prototypeing would be if you could use Objective C as the interpreted code... That way, worst case scenario, you could just compile it into your app before your release, instead. I have heard that the lua source can be compiled to byte code, and linked in at build time, but I think the ultimate safe thing would be if the scripted source was in objective c, not lua. This leads me to wondering (i've searched, but come up with nothing) if there are any examples on how to embed an Objective C Interpreter in an iPhone app? This would allow you to rapidly prototype your app against the current classes that are built into your binary, and, when your about to deploy your app, instead of running the classes through the in app interpreter, you compile them in instead.

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