assembly context - Page 16

How does AssemblyName.ReferenceMatchesDefinition work?

- by Fabian Schmied

Given the following code: var n1 = new AssemblyName ("TestDll, Version=1.0.0.0, Culture=Neutral, PublicKeyToken=b77a5c561934e089"); var n2 = new AssemblyName ("TestDll, Version=2.0.0.2001, Culture=en-US, PublicKeyToken=ab7a5c561934e089"); Console.WriteLine (AssemblyName.ReferenceMatchesDefinition (n1, n2)); Console.WriteLine (AssemblyName.ReferenceMatchesDefinition (n2, n1)); Why do both of these checks print "True"? I would have thought that AssemblyName.ReferenceMatchesDefinition should consider differences in the version, culture, and public key token attributes of an assembly name, shouldn't they? If not, what does ReferenceMatchesDefinition do that a comparison of the simple names doesn't?

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Creating a new naming context in OUD

- by Sylvain Duloutre

A naming context (also known as a directory suffix) is a DN that identifies the top entry in a locally held directory hierarchy. A new naming context can be created using ODSM, the OUD gui admin console, as described in http://docs.oracle.com/cd/E29407_01/admin.111200/e22648/server_config.htm#CBDGCJGF It can also be created using the dsconfig command lione as described below: Creation of a new naming context consists in 3 steps: First create a Local Backend Workflow element (myNewDb in this exemple) , responsible for the naming context base dn, e.g o=example. dsconfig create-workflow-element \ --set base-dn:o=example \ --set enabled:true \ --type db-local-backend \ --element-name myNewDb \ --hostname <your host> \ --port <admin port> \ --bindDN cn=Directory\ Manager \ --bindPasswordFile ****** \ --no-prompt Second, create a Workflow element (workFlowForMyNewDb in this exemple) associated with the Local Backend Workflow element. WorkFlow elements are used to route LDAP requests to the appropriate database, based on the target base dn. dsconfig create-workflow \ --set base-dn:o=example \ --set enabled:true \ --set workflow-element:myNewDb \ --type generic \ --workflow-name workFlowForMyNewDb \ --hostname <your host name> \ --port <admin port>\ --bindDN cn=Directory\ Manager \ --bindPasswordFile ****** \ --no-prompt Then, the workflow element must be made visible outside of the directory, i.e added to the internal "routing table". This is done by adding the Workflow to the appropriate Network Group. A Network group is used to classify incoming client connections and route requests to workflows. dsconfig set-network-group-prop \ --group-name network-group \ --add workflow:workFlowForMyNewDb \ --hostname <your hostname> \ --port <admin port>\ --bindDN cn=Directory\ Manager \ --bindPasswordFile ****** \ --no-prompt At that stage, it is possible to import entries to the new naming context o=example.

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Searching for context in Silverlight applications

- by PeterTweed

A common behavior in business applications that have developed through the ages is for a user to be able to get information or execute commands in relation to some information/function displayed by right clicking the object in question and popping up a context menu that offers relevant options to choose. The Silverlight Toolkit April 2010 release introduced the context menu object. This can be added to other UI objects and display options for the user to choose. The menu items can be enabled or disabled as per your application logic and icons can be added to the menu items to add visual effect. This post will walk you through how to use the context menu object from the Silverlight Toolkit. Steps: 1. Create a new Silverlight 4 application 2. Copy the following namespace definition to the user control object of the MainPage.xaml file: xmlns:my="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Input.Toolkit" 3. Copy the following XAML into the LayoutRoot grid in MainPage.xaml: <Border CornerRadius="15" Background="Blue" Width="400" Height="100"> <TextBlock Foreground="White" FontSize="20" Text="Context Menu In This Border...." HorizontalAlignment="Center" VerticalAlignment="Center" > </TextBlock> <my:ContextMenuService.ContextMenu> <my:ContextMenu > <my:MenuItem Header="Copy" Click="CopyMenuItem_Click" Name="copyMenuItem"> <my:MenuItem.Icon> <Image Source="copy-icon-small.png"/> </my:MenuItem.Icon> </my:MenuItem> <my:Separator/> <my:MenuItem Name="pasteMenuItem" Header="Paste" Click="PasteMenuItem_Click"> <my:MenuItem.Icon> <Image Source="paste-icon-small.png"/> </my:MenuItem.Icon> </my:MenuItem> </my:ContextMenu> </my:ContextMenuService.ContextMenu> </Border> The above code associates a context menu with two menu items and a separator between them to the border object. The menu items has icons associated with them to add visual appeal. The menu items have click event handlers that will be added in the MainPage.xaml.cs code behind in a later step. 4. Add two icon sized images to the ClientBin directory of the web project hosting the Silverlight application, named copy-icon-small.png and paste-icon-small.jpg respectively. I used copy and paste icons as the names suggest. 5. Add the following code to the class in MainPage.xaml.cs file: private void CopyMenuItem_Click(object sender, RoutedEventArgs e) { MessageBox.Show("Copy selected"); } private void PasteMenuItem_Click(object sender, RoutedEventArgs e) { MessageBox.Show("Paste selected"); } This code adds the event handlers for the menu items defined in step 3. 6. Run the application, right click on the border and select a menu option and see the appropriate message box displayed. Congratulations it’s that easy! Take the Slalom Challenge at www.slalomchallenge.com!

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invalid context 0x0 under iOS 7.0 and system degradation

- by Alex

I've read as many search results I could find on this dreaded problem, unfortunatelly, each one seems to focus on a specific function call. My problem is that I get the same error from multiple functions, which I am guessing are being called back from functions that I use. To make matters worse, the actual code is within a custom private framework which is being imported in another project, and as such, debugging isn't as simple? Can anyone point me to the right direction? I have a feeling I'm calling certain methods wrongly or with bad context, but the output from xcode is not very helpful at this point. : CGContextSetFillColorWithColor: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. : CGContextSetStrokeColorWithColor: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. CGContextSaveGState: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. : CGContextSetFlatness: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. : CGContextAddPath: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. : CGContextDrawPath: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. : CGContextRestoreGState: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. : CGContextGetBlendMode: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update. Those errors may occur when a custom view is presented, or one of its inherited classes. At which point they spawn multiple times, until the keyboard won't provide any input. Touch events are still registered, but system slows down, and eventually may lead to unallocated object errors.

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ILMerge - Unresolved assembly reference not allowed: System.Core

- by Steve Michelotti

ILMerge is a utility which allows you the merge multiple .NET assemblies into a single binary assembly more for convenient distribution. Recently we ran into problems when attempting to use ILMerge on a .NET 4 project. We received the error message: An exception occurred during merging: Unresolved assembly reference not allowed: System.Core. at System.Compiler.Ir2md.GetAssemblyRefIndex(AssemblyNode assembly) at System.Compiler.Ir2md.GetTypeRefIndex(TypeNode type) at System.Compiler.Ir2md.VisitReferencedType(TypeNode type) at System.Compiler.Ir2md.GetMemberRefIndex(Member m) at System.Compiler.Ir2md.PopulateCustomAttributeTable() at System.Compiler.Ir2md.SetupMetadataWriter(String debugSymbolsLocation) at System.Compiler.Ir2md.WritePE(Module module, String debugSymbolsLocation, BinaryWriter writer) at System.Compiler.Writer.WritePE(String location, Boolean writeDebugSymbols, Module module, Boolean delaySign, String keyFileName, String keyName) at System.Compiler.Writer.WritePE(CompilerParameters compilerParameters, Module module) at ILMerging.ILMerge.Merge() at ILMerging.ILMerge.Main(String[] args) It turns out that this issue is caused by ILMerge.exe not being able to find the .NET 4 framework by default. The answer was ultimately found here. You either have to use the /lib option to point to your .NET 4 framework directory (e.g., “C:\Windows\Microsoft.NET\Framework\v4.0.30319” or “C:\Windows\Microsoft.NET\Framework64\v4.0.30319”) or just use an ILMerge.exe.config file that looks like this: 1: <configuration> 2: <startup useLegacyV2RuntimeActivationPolicy="true"> 3: <requiredRuntime safemode="true" imageVersion="v4.0.30319" version="v4.0.30319"/> 4: </startup> 5: </configuration> This was able to successfully resolve my issue.

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Incrementing Assembly Version in TFS Builds and its affect over Other Build Definitions

- by ssmantha

A very common scenario while performing TFS builds is to increment version number of the assemblies. There are quite a few approaches of which I would like to share two links: Ewald Hofman’s Approach: http://www.ewaldhofman.nl/post/2010/05/13/Customize-Team-Build-2010-e28093-Part-5-Increase-AssemblyVersion.aspx#id_02e7b082-ce95-49a9-92e9-7dc88887b377 Richard Bank’s Approach : http://www.richard-banks.org/2010/07/how-to-versioning-builds-with-tfs-2010.html Both these approaches work well, however there are scenarios where Editing and Checking–in the Assembly version information can create problems with Build Definitions meant for Continuous Integration, or gated Check-ins. You can suppress the Continuous Integration Builds while checking in the Assembly info file by just putting a comment “***NO_CI***” as specified by Ewald in his blog. However, if you have Gated Checkin in place, this can turn out to be difficult to suppress, I myself tried to suppress the Build Trigger during the check in process but things doesn’t turn out well. That’s where Richard’s solution comes as handy. Both the solutions have their own pros and cons, which I believe can only be experienced over a period of time. In case of Richard’s solution I believe that we don’t have any history of the Assembly Version Info file and when you take latest of the solution the information will be lost. If you notice closely, that suppressing the Continuous Integration (the NO_CI approach in check in comments) is a workaround provided by Microsoft, however I didn’t find anything to suppress the gated Checkin so far. Suggestions or Findings are most welcome.

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Dynamic LINQ in an Assembly Near By

- by Ricardo Peres

You may recall my post on Dynamic LINQ. I said then that you had to download Microsoft's samples and compile the DynamicQuery project (or just grab my copy), but there's another way. It turns out Microsoft included the Dynamic LINQ classes in the System.Web.Extensions assembly, not the one from ASP.NET 2.0, but the one that was included with ASP.NET 3.5! The only problem is that all types are private: Here's how to use it: Assembly asm = typeof(UpdatePanel).Assembly; Type dynamicExpressionType = asm.GetType("System.Web.Query.Dynamic.DynamicExpression"); MethodInfo parseLambdaMethod = dynamicExpressionType.GetMethods(BindingFlags.Public | BindingFlags.Static).Where(m = (m.Name == "ParseLambda") && (m.GetParameters().Length == 2)).Single().MakeGenericMethod(typeof(DateTime), typeof(Boolean)); Func filterExpression = (parseLambdaMethod.Invoke(null, new Object [] { "Year == 2010", new Object [ 0 ] }) as Expression).Compile(); List list = new List { new DateTime(2010, 1, 1), new DateTime(1999, 1, 12), new DateTime(1900, 10, 10), new DateTime(1900, 2, 20), new DateTime(2012, 5, 5), new DateTime(2012, 1, 20) }; IEnumerable filteredDates = list.Where(filterExpression); SyntaxHighlighter.config.clipboardSwf = 'http://alexgorbatchev.com/pub/sh/2.0.320/scripts/clipboard.swf'; SyntaxHighlighter.brushes.CSharp.aliases = ['c#', 'c-sharp', 'csharp']; SyntaxHighlighter.all();

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Oracle 64-bit assembly throws BadImageFormatException when running unit tests

- by pjohnson

We recently upgraded to the 64-bit Oracle client. Since then, Visual Studio 2010 unit tests that hit the database (I know, unit tests shouldn't hit the database--they're not perfect) all fail with this error message:Test method MyProject.Test.SomeTest threw exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.BadImageFormatException: Could not load file or assembly 'Oracle.DataAccess, Version=4.112.3.0, Culture=neutral, PublicKeyToken=89b483f429c47342' or one of its dependencies. An attempt was made to load a program with an incorrect format.I resolved this by changing the test settings to run tests in 64-bit. From the Test menu, go to Edit Test Settings, and pick your settings file. Go to Hosts, and change the "Run tests in 32 bit or 64 bit process" dropdown to "Run tests in 64 bit process on 64 bit machine". Now your tests should run.This fix makes me a little nervous. Visual Studio 2010 and earlier seem to change that file for no apparent reason, add more settings files, etc. If you're not paying attention, you could have TestSettings1.testsettings through TestSettings99.testsettings sitting there and never notice the difference. So it's worth making a note of how to change it in case you have to redo it, and being vigilant about files VS tries to add.I'm not entirely clear on why this was even a problem. Isn't that the point of an MSIL assembly, that it's not specific to the hardware it runs on? An IL disassembler can open the Oracle.DataAccess.dll in question, and in its Runtime property, I see the value "v4.0.30319 / x64". So I guess the assembly was specifically build to target 64-bit platforms only, possibly due to a 64-bit-specific difference in the external Oracle client upon which it depends. Most other assemblies, especially in the .NET Framework, list "msil", and a couple list "x86". So I guess this is another entry in the long list of ways Oracle refuses to play nice with Windows and .NET.If this doesn't solve your problem, you can read others' research into this error, and where to change the same test setting in Visual Studio 2012.

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How to set parameters of CGContextAddArcToPoint method using a slider

- by Manish Sahni

am making an app in which i have to control a smile of a face like graphics. For example if i slide the slider down(to a value less than middle) it should give the arc a sad face(like :-( ) effect and if i slide the slider up the arc should give the effect of smile(like :-) ).initially lips are like :-| . I need to control the lips which is an arc using a slider? smileSliderViewController.h #import <UIKit/UIKit.h> @interface smileSliderViewController : UIViewController { IBOutlet UISlider *slider; } -(IBAction)valueChange:(id)sender; @end smileSliderViewController.m #import "smileSliderViewController.h" //#import "smile.h" @implementation smileSliderViewController -(IBAction)valueChange:(id)sender { int value = (int)(slider.value); if(value>0 && value<25) { //value--; CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB(); CGFloat components[] = {0.0,0.0,1.0,1.0}; CGColorRef color = CGColorCreate(colorspace, components); CGContextSetStrokeColorWithColor(context, color); CGContextMoveToPoint(context, 120,180); CGContextAddArcToPoint(context, 190 , 170, 270, 200, 0 ); CGContextStrokePath(context); } } smile.h #import <UIKit/UIKit.h> #import "smile.m" @interface smile : UIView { IBOutlet UISlider *slider; } @end smile.m #import "smile.h" #import "smileSliderViewController.h" @implementation smile - (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { // Initialization code } return self; } - (void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); //CGContextSetStrokeColor(context, [UIColor redColor].CGColor); CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB(); CGFloat components[] = {0.0,0.0,1.0,1.0}; CGColorRef color = CGColorCreate(colorspace, components); CGContextSetStrokeColorWithColor(context, color); CGRect rectangle = CGRectMake(60, 20, 200,200); CGContextAddEllipseInRect(context, rectangle); CGContextStrokePath(context); /*CGRect rectangle1 = CGRectMake(130,170,50,10); CGContextAddRect(context,rectangle1); CGContextStrokePath(context);*/ /*CGContextMoveToPoint(context,100,200); CGContextAddArcToPoint(context,120,150,400,150,70 ); CGContextStrokePath(context);*/ /*CGContextMoveToPoint(context, 100,100); CGContextAddArcToPoint(context, -100,200, -400,200, 80); CGContextStrokePath(context);*/ CGContextSetStrokeColorWithColor(context,color); CGRect rectangle2 = CGRectMake(80, 90, 50, 8); CGContextAddEllipseInRect(context, rectangle2); CGContextStrokePath(context); CGContextSetStrokeColorWithColor(context,color); CGRect rectangle3 = CGRectMake(180, 90, 50, 8); CGContextAddEllipseInRect(context, rectangle3); CGContextStrokePath(context); CGContextSetStrokeColorWithColor(context,color); CGContextMoveToPoint(context, 155,120); CGContextAddLineToPoint(context, 155,160); CGContextStrokePath(context); /*CGContextSetStrokeColorWithColor(context, color); CGRect rectangle4 = CGRectMake(130, 180, 50,8); CGContextAddEllipseInRect(context, rectangle4); CGContextStrokePath(context);*/ /*CGContextSetStrokeColorWithColor(context,color); CGContextMoveToPoint(context, 120,180); CGContextAddLineToPoint(context, 190,180); CGContextStrokePath(context);*/ int value = (int)(slider.value); if(value == 25) { CGContextMoveToPoint(context, 120,180); CGContextAddArcToPoint(context, 190 , 180, 250 , 180, 0 ); CGContextStrokePath(context); } }

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Azure git deployment - missing references in 2nd assembly

- by Dan

I'm trying to setup Bitbucket deployment to an Azure website. I successfully have Bitbucket and Azure linked, but when I push to Bitbucket, I get the following error on the Azure site: If I click on 'View Log', it shows the following compile errors: D:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets(1578,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors. [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] D:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets(1578,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "WebMatrix.WebData, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors. [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] CustomMembershipProvider.cs(5,7): error CS0246: The type or namespace name 'WebMatrix' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] CustomMembershipProvider.cs(9,38): error CS0246: The type or namespace name 'ExtendedMembershipProvider' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] Models\AccountModels.cs(3,18): error CS0234: The type or namespace name 'Mvc' does not exist in the namespace 'System.Web' (are you missing an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] CustomMembershipProvider.cs(198,37): error CS0246: The type or namespace name 'OAuthAccountData' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] Models\AccountModels.cs(40,10): error CS0246: The type or namespace name 'Compare' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] Models\AccountModels.cs(40,10): error CS0246: The type or namespace name 'CompareAttribute' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] Models\AccountModels.cs(73,10): error CS0246: The type or namespace name 'Compare' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] Models\AccountModels.cs(73,10): error CS0246: The type or namespace name 'CompareAttribute' could not be found (are you missing a using directive or an assembly reference?) [C:\DWASFiles\Sites\<projname>\VirtualDirectory0\site\repository\<projname>.Common\<projname>.Common.csproj] Note that these compile errors are against another assembly in my project (the assembly where I put the business logic). When Googling, the only mention I found was about having to set the "local copy" flag to true for those references. I've tried this, but still got the same errors. This all compiles fine locally. Any ideas?

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InvalidCastException when creating an instance using assembly.CreateInstance

- by Yossi Dahan

I'm looking for an explanation for the following - I have an assembly I'm loading using Assembly assembly = Assembly.LoadFrom(filename); I then loop on all the types in the assembly, and wish to try and find out if a type implements a particular interface and if so I want an instance of that type, I've tried several things which did not work, but when I fell back to the most basic (and probably inefficient) way, I realised there's something more fundamental I don't understand - foreach (Type t in assembly.GetTypes()) { foreach (Type i in t.GetInterfaces()) { if (i.FullName == pluginInterfaceType.FullName) { object o = assembly.CreateInstance(t.ToString()); IInterface plugin = (IInterface)o; That last line causes an InvalidCastException, despite the fact that the type created definitely implements that interface. Further more - if I use Activator.CreateInstance instead of Assembly.CreateInstance (which I don't want to do), casting to the interface works just fine.

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Relationship between .NET ClassLoader and Assembly

- by smwikipedia

I am wondering about the relationship between .NET ClassLoader and Assembly I use the "!dumpdomain xxxx" command and got the following output: Domain 1: 00522108 LowFrequencyHeap: 0052212c HighFrequencyHeap: 00522178 StubHeap: 005221c4 Stage: OPEN SecurityDescriptor: 00523430 Name: BoxUnbox.exe **Assembly**: 0056eb88 [C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll] **ClassLoader**: 0056ec08 SecurityDescriptor: 0056c078 Module Name 56d71000 C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll **Assembly**: 005794f0 [] **ClassLoader**: 00579570 SecurityDescriptor: 0057a018 Module Name 00152c5c I noticed that the "ClassLoader" and "Assembly" appear in pair. It seems each Assembly is accompanied with its own "ClassLoader". Why like this? Is this a litte noisy? Why not just assign one "ClassLoader" to a AppDomain and use it to load all the used Assembly into the AppDomain? Isnt't this design more elegant? Many thanks.

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Context is Everything

- by Angus Graham

Normal 0 false false false EN-CA X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} Context is Everything How many times have you have you asked a question only to hear an answer like “Well, it depends. What exactly are you trying to do?”. There are times that raw information can’t tell us what we need to know without putting it in a larger context. Let's take a real world example. If I'm a maintenance planner trying to figure out which assets should be replaced during my next maintenance window, I'm going to go to my Asset Management System. I can get it to spit out a list of assets that have failed several times over the last year. But what are these assets connected to? Is there any safety consequences to shutting off this pipeline to do the work? Is some other work that's planned going to conflict with replacing this asset? Several of these questions can't be answered by simply spitting out a list of asset IDs. The maintenance planner will have to reference a diagram of the plant to answer several of these questions. This is precisely the idea behind Augmented Business Visualization. An Augmented Business Visualization (ABV) solution is one where your structured data (enterprise application data) and your unstructured data (documents, contracts, floor plans, designs, etc.) come together to allow you to make better decisions. Essentially we're showing your business data into its context. AutoVue allows you to create ABV solutions by integrating your enterprise application with AutoVue’s hotspot framework. Hotspots can be defined for your document. Users can click these hotspots to trigger actions in your enterprise app. Similarly, the enterprise app can highlight the hotspots in your document based on its business data, creating a visual dashboard of your business data in the context of your document. ABV is not new. We introduced the hotspot framework in AutoVue 20.1 with text hotspots. Any text in a PDF or 2D CAD drawing could be turned into a hotspot. In 20.2 we have enhanced this to include 2 new types of hotspots: 3D and regional hotspots. 3D hotspots allow you to turn 3D parts into hotspots. Hotspots can be defined based on the attributes of the part, so you can create hotspots based on part numbers, material, date of delivery, etc. Regional hotspots allow an administrator to define rectangular regions on any PDF, image, or 2D CAD drawing. This is perfect for cases where the document you’re using either doesn’t have text in it (a JPG or TIFF for example) or if you want to define hotspots that don’t correspond to the text in the document. There are lots of possible uses for AutoVue hotspots. A great demonstration of how our hotspot capabilities can help add context to enterprise data in the Energy sector can be found in the following AutoVue movies: Maintenance Planning in the Energy Sector - Watch it Now Capital Construction Project Management in the Energy Sector - Watch it Now Commissioning and Handover Process for the Energy Sector - Watch it Now

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Context Sensitive JTable

- by Geertjan

Here's a plain old JTable on the NetBeans Platform. Whenever the toolbar button is clicked, information about the currently selected row is displayed in the status bar: Normally, the above would be achieved in NetBeans Platform applications via Nodes publishing their underlying business object when the selection changes. In this case, there are no Nodes at all. There's only a JTable and a DefaultTableModel, i.e., all pure Java Swing. So, how does it work? To follow the logic, it makes sense to create the example yourself, starting with the Stock object: public class Stock { String name; String desc; public Stock() { } public Stock(String name, String desc) { this.name = name; this.desc = desc; } public String getDesc() { return desc; } public String getName() { return name; } public void setDesc(String desc) { this.desc = desc; } public void setName(String name) { this.name = name; } } Next, create a new Window Component via the wizard and then rewrite the constructor as follows: public final class MyWindowTopComponent extends TopComponent { private final InstanceContent ic = new InstanceContent(); public MyWindowTopComponent() { initComponents(); //Statically create a few stocks, //in reality these would come from a data source //of some kind: List<Stock> list = new ArrayList(); list.add(new Stock("AMZN", "Amazon")); list.add(new Stock("BOUT", "About.com")); list.add(new Stock("Something", "Something.com")); //Create a JTable, passing the List above //to a DefaultTableModel: final JTable table = new JTable(StockTableModel (list)); //Whenever the mouse is clicked on the table, //somehow construct a new Stock object //(or get it from the List above) and publish it: table.addMouseListener(new MouseAdapter() { @Override public void mousePressed(MouseEvent e) { int selectedColumn = table.getSelectedColumn(); int selectedRow = table.getSelectedRow(); Stock s = new Stock(); if (selectedColumn == 0) { s.setName(table.getModel().getValueAt(selectedRow, 0).toString()); s.setDesc(table.getModel().getValueAt(selectedRow, 1).toString()); } else { s.setName(table.getModel().getValueAt(selectedRow, 1).toString()); s.setDesc(table.getModel().getValueAt(selectedRow, 0).toString()); } ic.set(Collections.singleton(s), null); } }); JScrollPane scrollPane = new JScrollPane(table); add(scrollPane, BorderLayout.CENTER); //Put the dynamic InstanceContent into the Lookup: associateLookup(new AbstractLookup(ic)); } private DefaultTableModel StockTableModel (List<Stock> stockList) { DefaultTableModel stockTableModel = new DefaultTableModel() { @Override public boolean isCellEditable(int row, int column) { return false; } }; Object[] columnNames = new Object[2]; columnNames[0] = "Symbol"; columnNames[1] = "Name"; stockTableModel.setColumnIdentifiers(columnNames); Object[] rows = new Object[2]; ListIterator<Stock> stockListIterator = stockList.listIterator(); while (stockListIterator.hasNext()) { Stock nextStock = stockListIterator.next(); rows[0] = nextStock.getName(); rows[1] = nextStock.getDesc(); stockTableModel.addRow(rows); } return stockTableModel; } ... ... ... And now, since you're publishing a new Stock object whenever the user clicks in the table, you can create loosely coupled Actions, like this: @ActionID(category = "Edit", id = "org.my.ui.ShowStockAction") @ActionRegistration(iconBase = "org/my/ui/Datasource.gif", displayName = "#CTL_ShowStockAction") @ActionReferences({ @ActionReference(path = "Menu/File", position = 1300), @ActionReference(path = "Toolbars/File", position = 300) }) @Messages("CTL_ShowStockAction=Show Stock") public final class ShowStockAction implements ActionListener { private final Stock context; public ShowStockAction(Stock context) { this.context = context; } @Override public void actionPerformed(ActionEvent ev) { StatusDisplayer.getDefault().setStatusText(context.getName() + " / " + context.getDesc()); } }

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How were the first compilers made?

- by Sauron

I always wonder this, and perhaps I need a good history lesson on programming languages. But....since most compilers nowadays are made in C......how were the very first compilers made (AKA before C) or were all the languages just interpreted. With that being said, I still don't understand how even the first assembly language was done, I understand what assembly language is......but I don't see how they got the VERY first assembly language working (like.....how did they make the first commands (like mov R21) or w/e set to the binary equivalent.

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Artificial Intelligence implemented in x86 Assembly? [closed]

- by Bigyellow Bastion

Okay, so I decided that for my upcoming operating system, I do basically everything in x86 Assembly, using only 16-bit mode. I will need to write the software to host on it once I have something up and going, and I'll definitely post the source and VM-executable file. But as for now I'm stuck with the idea of implementing the AI code for some of the games I'm making to host on it. AI in Assembly is tedious, and sometimes almost impossible seeming, especially complex AI(I'm talking SNES Super Mario World 2: Yoshi's Island AI here, by the way, not pong AI). I was thinking that it'd be such a hassle that I'd have to bring a higher-level language to work some of this out here, like maybe C++ or C#, but I'd have to go through more work linking it into a fine binary that my OS will host, and that adds unnecessary work to the table I wanted to avoid(I don't want a complex system, I want everything as bare-bones as possible, avoiding libraries, APIs, and linkable formats for now, to make everything more directly accessible to the kernel's API).

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Core Graphics Rotating a Path

- by Scott Langendyk

This should be a simple one, basically I have a few paths drawn with core graphics, and I want to be able to rotate them (for convenience). I've tried using CGContextRotateCTM(context); but it's not rotating anything. Am I missing something? Here's the source for drawRect - (void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 1.5); CGContextSetStrokeColorWithColor(context, [UIColor whiteColor].CGColor); CGContextSetShadow(context, CGSizeMake(0, 1), 0); CGContextBeginPath(context); CGContextMoveToPoint(context, 13.5, 13.5); CGContextAddLineToPoint(context, 30.5, 13.5); CGContextAddLineToPoint(context, 30.5, 30.5); CGContextAddLineToPoint(context, 13.5, 30.5); CGContextAddLineToPoint(context, 13.5, 13.5); CGContextClosePath(context); CGContextMoveToPoint(context, 26.2, 13.5); CGContextAddLineToPoint(context, 26.2, 17.8); CGContextAddLineToPoint(context, 30.5, 17.8); CGContextMoveToPoint(context, 17.8, 13.5); CGContextAddLineToPoint(context, 17.8, 17.8); CGContextAddLineToPoint(context, 13.5, 17.8); CGContextMoveToPoint(context, 13.5, 26.2); CGContextAddLineToPoint(context, 17.8, 26.2); CGContextAddLineToPoint(context, 17.8, 30.5); CGContextStrokePath(context); CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor); CGContextSetShadowWithColor(context, CGSizeMake(0, 0), 0, [UIColor clearColor].CGColor); CGContextFillRect(context, CGRectMake(26.2, 13.5, 4.3, 4.3)); CGContextFillRect(context, CGRectMake(13.5, 13.5, 4.3, 4.3)); CGContextFillRect(context, CGRectMake(13.5, 26.2, 4.3, 4.3)); CGContextRotateCTM(context, M_PI / 4); }

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MIPS assembly: how to declare integer values in the .data section?

- by Barney

I'm trying to get my feet wet with MIPS assembly language using the MARS simulator. My main problem now is how do I initialize a set of memory locations so that I can access them later via assembly language instructions? For example, I want to initialize addresses 0x1001000 - 0x10001003 with the values 0x99, 0x87, 0x23, 0x45. I think this can be done in the data declaration (.data) section of my assembly program but I'm not sure of the syntax. Is this possible? Alternatively, in the .data section, how do I specify storing the integer values in some memory location (I don't care where, but I just want to reference them somewhere). So I'm looking for the C equivalent of "int x = 20, y=30, z=90;" I know how to do that using MIPS instructions but is it possible to declare something like that in the .data section of a MIPS assembly program?

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Maven 2 assembly with dependencies: jar under scope "system" not included.

- by YuppieNetworking

Hello, I am using maven-assembly plugin to create a jar of my application, including its dependencies as follows: <assembly> <id>macosx</id> <formats> <format>tar.gz</format> <format>dir</format> </formats> <dependencySets> <dependencySet> <includes> <include>*:jar</include> </includes> <outputDirectory>lib</outputDirectory> </dependencySet> </dependencySets> </assembly> (I omitted some other stuff that is not related to the question) So far this has worked fine because it creates a lib directory with all dependencies. However, I recently added a new dependency whose scope is system, and it does not copy it to the lib output directory. i must be missing something basic here, so I call for help. The dependency that I just added is: <dependency> <groupId>sourceforge.jchart2d</groupId> <artifactId>jchart2d</artifactId> <version>3.1.0</version> <scope>system</scope> <systemPath>${project.basedir}/external/jchart2d-3.1.0.jar</systemPath> </dependency> The only way I was able to include this dependency was by adding the following to the assembly element: <files> <file> <source>external/jchart2d-3.1.0.jar</source> <outputDirectory>lib</outputDirectory> </file> </files> However, this forces me to change the pom and the assembly file whenever this jar is renamed, if ever. Also, it seems just wrong. I have tried with <scope>runtime</scope> in the dependencySets and <include>sourceforge.jchart2d:jchart2d</include> with no luck. So how do you include a system scoped jar to your assembly file in maven 2? Thanks a lot

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help understanding differences between #define, const and enum in C and C++ on assembly level.

- by martin

recently, i am looking into assembly codes for #define, const and enum: C codes(#define): 3 #define pi 3 4 int main(void) 5 { 6 int a,r=1; 7 a=2*pi*r; 8 return 0; 9 } assembly codes(for line 6 and 7 in c codes) generated by GCC: 6 mov $0x1, -0x4(%ebp) 7 mov -0x4(%ebp), %edx 7 mov %edx, %eax 7 add %eax, %eax 7 add %edx, %eax 7 add %eax, %eax 7 mov %eax, -0x8(%ebp) C codes(enum): 2 int main(void) 3 { 4 int a,r=1; 5 enum{pi=3}; 6 a=2*pi*r; 7 return 0; 8 } assembly codes(for line 4 and 6 in c codes) generated by GCC: 6 mov $0x1, -0x4(%ebp) 7 mov -0x4(%ebp), %edx 7 mov %edx, %eax 7 add %eax, %eax 7 add %edx, %eax 7 add %eax, %eax 7 mov %eax, -0x8(%ebp) C codes(const): 4 int main(void) 5 { 6 int a,r=1; 7 const int pi=3; 8 a=2*pi*r; 9 return 0; 10 } assembly codes(for line 7 and 8 in c codes) generated by GCC: 6 movl $0x3, -0x8(%ebp) 7 movl $0x3, -0x4(%ebp) 8 mov -0x4(%ebp), %eax 8 add %eax, %eax 8 imul -0x8(%ebp), %eax 8 mov %eax, 0xc(%ebp) i found that use #define and enum, the assembly codes are the same. The compiler use 3 add instructions to perform multiplication. However, when use const, imul instruction is used. Anyone knows the reason behind that?

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Do assembly strong names change when new versions of .Net are released?

- by Ryan Michela

I'm trying to load an assembly that was installed as part of .Net 3.5 SP1 using Assembly.Load() by referencing its strong name. This works fine on my computer right now, but is it future proof? Will the strong name of core .Net assemblies change when patches are installed or new versions of the .Net framework are released? If so, how can I load an assembly from the GAC without using it's strong name?

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How-to delete a tree node using the context menu

- by frank.nimphius

Hierarchical trees in Oracle ADF make use of View Accessors, which means that only the top level node needs to be exposed as a View Object instance on the ADF Business Components Data Model. This also means that only the top level node has a representation in the PageDef file as a tree binding and iterator binding reference. Detail nodes are accessed through tree rule definitions that use the accessor mentioned above (or nested collections in the case of POJO or EJB business services). The tree component is configured for single node selection, which however can be declaratively changed for users to press the ctrl key and selecting multiple nodes. In the following, I explain how to create a context menu on the tree for users to delete the selected tree nodes. For this, the context menu item will access a managed bean, which then determines the selected node(s), the internal ADF node bindings and the rows they represent. As mentioned, the ADF Business Components Data Model only needs to expose the top level node data sources, which in this example is an instance of the Locations View Object. For the tree to work, you need to have associations defined between entities, which usually is done for you by Oracle JDeveloper if the database tables have foreign keys defined Note: As a general hint of best practices and to simplify your life: Make sure your database schema is well defined and designed before starting your development project. Don't treat the database as something organic that grows and changes with the requirements as you proceed in your project. Business service refactoring in response to database changes is possible, but should be treated as an exception, not the rule. Good database design is a necessity – even for application developers – and nothing evil. To create the tree component, expand the Data Controls panel and drag the View Object collection to the view. From the context menu, select the tree component entry and continue with defining the tree rules that make up the hierarchical structure. As you see, when pressing the green plus icon in the Edit Tree Binding dialog, the data structure, Locations - Departments – Employees in my sample, shows without you having created a View Object instance for each of the nodes in the ADF Business Components Data Model. After you configured the tree structure in the Edit Tree Binding dialog, you press OK and the tree is created. Select the tree in the page editor and open the Structure Window (ctrl+shift+S). In the Structure window, expand the tree node to access the conextMenu facet. Use the right mouse button to insert a Popup into the facet. Repeat the same steps to insert a Menu and a Menu Item into the Popup you created. The Menu item text should be changed to something meaningful like "Delete". Note that the custom menu item later is added to the context menu together with the default context menu options like expand and expand all. To define the action that is executed when the menu item is clicked on, you select the Action Listener property in the Property Inspector and click the arrow icon followed by the Edit menu option. Create or select a managed bean and define a method name for the action handler. Next, select the tree component and browse to its binding property in the Property Inspector. Again, use the arrow icon | Edit option to create a component binding in the same managed bean that has the action listener defined. The tree handle is used in the action listener code, which is shown below: public void onTreeNodeDelete(ActionEvent actionEvent) { //access the tree from the JSF component reference created //using the af:tree "binding" property. The "binding" property //creates a pair of set/get methods to access the RichTree instance RichTree tree = this.getTreeHandler(); //get the list of selected row keys RowKeySet rks = tree.getSelectedRowKeys(); //access the iterator to loop over selected nodes Iterator rksIterator = rks.iterator(); //The CollectionModel represents the tree model and is //accessed from the tree "value" property CollectionModel model = (CollectionModel) tree.getValue(); //The CollectionModel is a wrapper for the ADF tree binding //class, which is JUCtrlHierBinding JUCtrlHierBinding treeBinding = (JUCtrlHierBinding) model.getWrappedData(); //loop over the selected nodes and delete the rows they //represent while(rksIterator.hasNext()){ List nodeKey = (List) rksIterator.next(); //find the ADF node binding using the node key JUCtrlHierNodeBinding node = treeBinding.findNodeByKeyPath(nodeKey); //delete the row. Row rw = node.getRow(); rw.remove(); } //only refresh the tree if tree nodes have been selected if(rks.size() > 0){ AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance(); adfFacesContext.addPartialTarget(tree); } } Note: To enable multi node selection for a tree, select the tree and change the row selection setting from "single" to "multiple". Note: a fully pictured version of this post will become available at the end of the month in a PDF summary on ADF Code Corner : http://www.oracle.com/technetwork/developer-tools/adf/learnmore/index-101235.html

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Question about "Link Map" output and "Assume" directive of MASM assembler.

- by smwikipedia

I am new to MASM. So the questions may be quite basic. When I am using the MASM assembler, there's an output file called "Link Map". Its content is composed of the starting offset and length of various segments, such as Data segment, Code segment and Stack segment. I am wondering that, where are these information describing? Are they talking about how various segments are located within an EXE file or, how segments are located within memory after the EXE file being loaded into memory by a program loader? BTW: What does the "Assume" directive do? My understanding is that it tell the assembler to emit some information into the exe file header so the program loader could use it to set DS, CS, SS, ES register accordingly. Am I right on this? Thanks in advance.

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128bit hash comparison with SSE

- by fokenrute

Hi, In my current project, I have to compare 128bit values (actually md5 hashes) and I thought it would be possible to accelerate the comparison by using SSE instructions. My problem is that I can't manage to find good documentation on SSE instructions; I'm searching for a 128bit integer comparison instruction that let me know if one hash is larger, smaller or equal to another. Does such an instruction exists? PS: The targeted machines are x86_64 servers with SSE2 instructions; I'm also interested in a NEON instruction for the same job.

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Windows Vista Context Menu>New... does not find entries

- by Paul

I was trying to remove a virus and foolishly did not backup registry keys I deleted because I (thought) I only deleted entries from the folders of programs I did not care about. However, I think I have done something wrong here: Now when I open a context menu (right click) in any location and hover over the "New..." option I don't get any options. It has a greyed out box saying "(Empty)". So far I have found out the the entries themselves are still there (using the locations provided here: Windows 7 - Add an item to 'new' context menu). I have also used a program recommended in that thread which also finds the entries intact and enabled. So it seems maybe I have deleted the entry which tells Vista where to look to find the files that can be created. How can I restore this so entries are shown again? I know system restore is an option but as I have said I did this when removing a (very stubborn) virus so that is the last resort.

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