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• CodePlex Daily Summary for Thursday, May 13, 2010

  CodePlex Daily Summary for Thursday, May 13, 2010New ProjectsC# 4.0: VS 2010Collaborative Rich Text Edit Prototype Silverlight on Windows Azure: Working like Google Doc but based on Silverlight/Windows Azure. Multiple users can edit one rich text document simultaneously. This is a POC and my...Consulting Assigment: Proyecto de consultoría para el curso Gestión de proyectos de la UCRCS 105 MP Splitter: Simple program to help with splitting up MPs for grading.DipEngine - graphic engine written on Xen for XNA: DIPEngine makes it easier for developers to use it in your game. It's developed in C# and using Xen for XNADotNetAgent: Agent FrameworkExtending C# editor - Outlining, classification: Extensions to VS C# editor current feautereset. Outlining for switch, for(each), if etc. statements. Classification types for method parameters and...Floe IRC Client: Floe is an IRC client written entirely in C#, using the .NET 4.0 framework with WPF technology. It is inspired largely by both XChat and mIRC, and ...Gestalt.Net: Gestalt.Net is a simple to use library for application configuration. It allows for more flexibility, easier to use, and more powerful than the app...GIM.OnlineChess: An implementation of online long-term chessGoogleTrail: Create and Export using the google map to develop the Trek Trails and Export Those Trails as Garmin Custom Map Compatible MapsGrassidi: What could Grassidi be?HodsAudio: Personal web based music library.Hospital Manage System: Free Hospital Manage SystemHtml Reader: Html Reader makes it easier for WPF WebBrowser users to access the Document property, and retrieve information from HTML pages. You'll no longer ha...Intellitouch.BackOffice: This project is a control for a menu.Jank: JankKooBoo Image Galery: It's a Module for kooboo that implements an image galery admin and view Developed for kooboo 2.1.1.0MoonyDesk (windows desktop widgets): Windows desktop plugin based widgets system written on WPFMSNSharp Application with Video Conferencing Feature: In MSN World, users don’t communicate directly each other.I examined P2P open source video/audio conference systems . After researching, I found Vi...mysample: study sample siteNoteFlyBot: An Intelligent Note Program is: - a 'Post-it' note that accept sNatural Language command to Upload content to EMC Repositories - Start Workflow...OpenGraphNET: A OpenGraphNET is a simple parser for the Open Graph protocol created by Facebook. More information on this can be found at opengraphprotocol.org.POCO - ADO.NET Entity Framework 4.0: The sample shows how to retrieve the data using POCO using EDM 4.0. Database used: Northwind (http://www.microsoft.com/downloads/details.aspx?Fa...sqlmx: sqlmxUpgrade Log Parser for SharePoint 2010: This is a simple Upgrade Log Parser for SharePoint 2010. It will add a node in the upgrade section of the central administration and deploy a pag...New ReleasesAMP (Adamo Media Player): AMP (Adamo Media Player): First Release version 0.1.0 Installation Instructions Unzip the package Run Setup.exe Follow Setup instructions File includes .NET Framework ...BeanProxy: BeanProxy 2.8: BeanProxy is a C# (.NET 3.5) library housing classes that facilitates unit testing. Any non-static, public interface/class/or abstract class can be...Begtostudy-Test: Test V1: Download to testCBM-Command: 2010-05-13: Release Notes - 2010-05-13New Features Configuration Manager is complete Changes Had to put CBM-Command on a big-time diet. Ran out of room on the...CS 105 MP Splitter: CS 105 MP Splitter: Uses SharpZipLib for unzipping (http://www.icsharpcode.net/OpenSource/SharpZipLib/) Uses ILMerge to merge it all into a single executable (http://w...DipEngine - graphic engine written on Xen for XNA: DipGUI: Provides simple controls for use itEvent Scavenger: Collector service update - version 3.2.3: Added additional functionality to check if host/machine is available on the network before trying to open Event log. Also added code to try to use ...ExcelExportLib: ExcelExportLib 1.4.0.0: Solution converted to Visual Studio 2010 - Added support for formulas in cells - Added support for cell naming - Added support for cell's comments...F# Project Extender: V0.9.1.0 (VS2008,VS2010): F# project extender for Visual Studio 2008 and Visual Studio 2010. What's new : Now supports both Visual Studio 2010 and Visual Studio 2008 Fixed...Floe IRC Client: Floe IRC Client 2010-05: Initial release. Note: The .NET Framework v4.0 is required to run this app. It can be downloaded here: http://www.microsoft.com/downloads/details....Fluent Assertions: Release 1.2.1: This is small release with two improvements: You can now use the Enumeration() extension method on a Func<IEnumerable> before calling ShouldThrow<T...Gestalt.Net: Gestalt.Net 1.0: Initial release of Gestalt.Net, a simple to use library for application configuration. It allows for more flexibility, easier to use, and more powe...GPdotNET - Tree Based Genetic Programming Tool: GPdotNETv0.9: This is the same version as previous, but compiled with Visual Studio 2010 and .NET 4.0. You no longer need CTP of ParallelFX.HKGolden Express: HKGoldenExpress (Build 201005122025): New features: (None) Bug fix: (None) Improvements: HKGolden Express now parse JSON data rather than XML document from HKGolden API. This shoul...Jobping Url Shortener: Deploy Code 0.3: Contains only the files for running 0.3 version of the code.Jobping Url Shortener: Source Code 0.3: Feature added: Restriction placed on the domains that the shortener will shorten. Our installation will only shorten www.jobping.com urls. Bug Fix...KooBoo Image Galery: Beta 1: This is the first release and it is divided in some parts Module Install - Is the admin module and an default view Plugin - returns the galery as...LinkedIn® for Windows Mobile: LinkedIn for Windows Mobile v0.8.5: Changes in release 0.8.5 Allow for multiple updatetypes. Add search by Company. Show profiles of all people in an update .MDownloader: MDownloader-0.15.13.58780: Fixed Uploading.com dead links detection; Fixed links detection at pages and in FilesTube results; Fixed RSS channel checking; Enabled by def...Microsoft - Domain Oriented N-Layered .NET 4.0 App Sample (Microsoft Spain): V0.8 - N-Layer DDD Sample App (VS.2010 RTM compat): Required Software (Microsoft Base Software needed for Development environment) Visual Studio 2010 RTM & .NET 4.0 RTM (Final Versions) Unity Applic...MoonyDesk (windows desktop widgets): MoonyDesk: MoonyDesk alpha releaseMSNSharp Application with Video Conferencing Feature: MSNVideoChat: Msn Video Chat Application's exe and screenshot is attached.NazTek.Extension.Clr35: NazTek.Extension.Clr35 Binary: FxCop compliant codebaseNazTek.Extension.Clr35: NazTek.Extension.Clr35 Signed Binary: Signed binaryNazTek.Extension.Clr35: NazTek.Extension.Clr35 Signed Source: Signed sourceNazTek.Extension.Clr35: NazTek.Extension.Clr35 Source: FxCop compliant codebasepatterns & practices Web Client Developer Guidance: Web Client Software Factory 2010 Guide: If the right-side pane of the chm file is not displayed correctly, do the following: 1) Download WCSF2010Guide.chm file. 2) Start the windows explo...Powershell Scripts for Admins: BizTalk PowerShell Module: BizTalk PowerShell Module Available commands : Get-Applications Start-Application Stop-Application Get-HostInstances Start-HostInstance Stop-Hos...Reusable Library: V1.0.8: A collection of reusable abstractions for enterprise application developerReusable Library Demo: V1.0.6: A demonstration of reusable abstractions for enterprise application developerRobot Shootans: Robot Shootans 0.9: This is the second public release of the game. All instructions for play are in the game itself. Known issues: Bullet collision is still a little...Rx Contrib: V1.2: - Bug fix - API changes public static ReactiveQueue<T> CreateConcurrentQueue( ConcurrentPublicationBehavior concurrentPublicationBeha...SqlDiffFramework-A Visual Differencing Engine for Dissimilar Data Sources: SqlDiffFramework 1.0.1.0: Maintenance Release An embedded user control inadvertently assumed US regional and language settings; with non-US settings the application crashed ...Transcriber: Transcriber V0.5.0: Pre-releaseUpgrade Log Parser for SharePoint 2010: Upgrade Log Parser for SharePoint 2010: Introduction I did an upgrade from MOSS 2007 to SharePoint 2010 and SP2010 generated such a large log file and I really didn't feel like scrolling ...VCC: Latest build, v2.1.30512.0: Automatic drop of latest buildVisual Leak Detector for Visual C++ 2008/2010: v2.0a: Renamed vld dll files. Problem with MSVC 2010 Unicode library fixed.VsTortoise - a TortoiseSVN add-in for Microsoft Visual Studio: VsTortoise Build 24 Beta: Build 24 (beta) New: Added "Open Modified File..." to Solution Explorer context menus. VsTortoise.SolutionExplorerSelectedItemsOpenModifiedFile com...WatchersNET.TagCloud: WatchersNET.TagCloud 01.05.00: Whats New Custom Tags: Tag Name and Tag Url can be localized New Option to set Start Date to grab Search Referrals from New Option to Choose th...Wavelet analysis: Wavelet analysis: Первая публичная версия проекта.XNA Shooter Engine: ModelViewer Alpha 1 Preview: ModelViewer is a utility for previewing HLSL shaders and XNA BasicEffects using the XSE rendering engine. It can also be used with the Microsoft XN...Yet another developer blog - Examples: XML and XSLT transformation in ASP.NET MVC example: This sample application shows how to perform XSL transformation of XML file in ASP.NET MVC (using dedicated HtmlHelper extensions or ActionResult)....Most Popular ProjectsWBFS ManagerRawrAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesPHPExcelASP.NETMost Active Projectspatterns & practices – Enterprise LibraryMirror Testing SystemRawrBlogEngine.NETPHPExcelwhitejQuery Library for SharePoint Web ServicesMicrosoft Biology FoundationFarseer Physics EngineShake - C# Make

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• A Gentle .NET touch to Unix Touch

  - by lavanyadeepak

  A Gentle .NET touch to Unix Touch The Unix world has an elegant utility called 'touch' which would modify the timestamp of the file whose path is being passed an argument to  it. Unfortunately, we don't have a quick and direct such tool in Windows domain. However, just a few lines of code in C# can fill this gap to embrace and rejuvenate any file in the file system, subject to access ACL restrictions with the current timestamp.   using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; namespace LavanyaDeepak.Utilities { class Touch { static void Main(string[] args) { if (args.Length < 1) { Console.WriteLine("Please specify the path of the file to operate upon."); return; } if (!File.Exists(args[0])) { try { FileAttributes objFileAttributes = File.GetAttributes(args[0]); if ((objFileAttributes & FileAttributes.Directory) == FileAttributes.Directory) { Console.WriteLine("The input was not a regular file."); return; } } catch { } Console.WriteLine("The file does not seem to be exist."); return; } try { File.SetLastWriteTime(args[0], DateTime.Now); Console.WriteLine("The touch completed successfully"); } catch (System.UnauthorizedAccessException exUnauthException) { Console.WriteLine("Unable to touch file. Access is denied. The security manager responded: " + exUnauthException.Message); } catch (IOException exFileAccessException) { Console.WriteLine("Unable to touch file. The IO interface failed to complete request and responded: " + exFileAccessException.Message); } catch (Exception exGenericException) { Console.WriteLine("Unable to touch file. An internal error occured. The details are: " + exGenericException.Message); } } } }

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• mysql jdbc got ArrayIndexOutOfBoundsException when database name length = 9

  - by Thang Hoang

  this code below will throw : Exception in thread "main" java.sql.SQLException: Unable to connect to any hosts due to exception: java.lang.ArrayIndexOutOfBoundsException: 40 mysql 5.1, jdbc driver 5.1.21 if I change connection string to any database have name's lengh != 9, it will pass to print 'connected'. or I create other database as '123456789' it throw same exception. I connect to other database on amazon s3, that have same name length, it throw java.lang.ArrayIndexOutOfBoundsException: 43. this database version is 'mysql Ver 14.14 Distrib 5.5.28, for debian-linux-gnu (i686) using readline 6.2 ' any idea of this weird mysql behavior, thanks public class MysqlConnection { public static void main(String[] args) throws Exception { Connection conn = null; String userName = "root"; String password = "123456"; String url = "jdbc:mysql://localhost:3306/test12345"; Class.forName ("com.mysql.jdbc.Driver").newInstance (); conn = DriverManager.getConnection (url,userName, password); System.out.println ("Connected"); } }

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• apache redirect based on referrer

  - by user40259

  I've just noticed that schoolmate.r09.railsrumble.com seems to be doing a rewrite to one of my domains, agilegrad.com. This is kind of annoying since that site is the top hit on google when searching for my domain and the address bar stays as schoolmate.r09.railsrumble.com when following the link. I'd like to redirect incoming requests with schoolmate.r09.railsrumble.com in the referrer variable to agilegrad.com, but the following in my vhost config for agilegrad.com isn't working for me: RewriteEngine on RewriteCond %{HTTP_REFERER} railsrumble RewriteRule ^/(.*) http://www.agilegrad.com/$1 [L,R=301] With this on, I see a bunch of redirects in my access log, but only for static files (cs, javascript). This is the first time I've tried using mod_rewrite, so I'm not even sure if I can accomplish what I want, which is to do a full redirect to my domain and have it appear to the user that they are at agilegrad.com.

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• Trying to install apache 2.4.10 with openssl 1.0.1i

  - by AlexMA

  I need to install apache 2.4.10 using openssl 1.0.1i. I compiled openssl from source with: $ ./config \ --prefix=/opt/openssl-1.0.1e \ --openssldir=/opt/openssl-1.0.1e $ make $ sudo make install and apache with: ./configure --prefix=/etc/apache2 \ --enable-access_compat=shared \ --enable-actions=shared \ --enable-alias=shared \ --enable-allowmethods=shared \ --enable-auth_basic=shared \ --enable-authn_core=shared \ --enable-authn_file=shared \ --enable-authz_core=shared \ --enable-authz_groupfile=shared \ --enable-authz_host=shared \ --enable-authz_user=shared \ --enable-autoindex=shared \ --enable-dir=shared \ --enable-env=shared \ --enable-headers=shared \ --enable-include=shared \ --enable-log_config=shared \ --enable-mime=shared \ --enable-negotiation=shared \ --enable-proxy=shared \ --enable-proxy_http=shared \ --enable-rewrite=shared \ --enable-setenvif=shared \ --enable-ssl=shared \ --enable-unixd=shared \ --enable-ssl \ --with-ssl=/opt/openssl-1.0.1i \ --enable-ssl-staticlib-deps \ --enable-mods-static=ssl make (would run sudo make install next but I get an error) I'm essentially following the guide here except with newer slightly newer versions. My problem is I get a linker error when I run make for apache: ... Making all in support make[1]: Entering directory `/home/developer/downloads/httpd-2.4.10/support' make[2]: Entering directory `/home/developer/downloads/httpd-2.4.10/support' /usr/share/apr-1.0/build/libtool --silent --mode=link x86_64-linux-gnu-gcc -std=gnu99 -pthread -L/opt/openssl-1.0.1i/lib -lssl -lcrypto \ -o ab ab.lo /usr/lib/x86_64-linux-gnu/libaprutil-1.la /usr/lib/x86_64-linux-gnu/libapr-1.la -lm /usr/bin/ld: /opt/openssl-1.0.1i/lib/libcrypto.a(dso_dlfcn.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5' I tried the answer here, but no luck. I would prefer to just use aptitude, but unfortunately the versions I need aren't available yet. If anyone knows how to fix the linker problem (or what I think is a linker problem), or knows of a better way to tell apache to use a newer openssl, it would be greatly appreciated; I've got apache 1.0.1i working otherwise.

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• Metro: Promises

  - by Stephen.Walther

  The goal of this blog entry is to describe the Promise class in the WinJS library. You can use promises whenever you need to perform an asynchronous operation such as retrieving data from a remote website or a file from the file system. Promises are used extensively in the WinJS library. Asynchronous Programming Some code executes immediately, some code requires time to complete or might never complete at all. For example, retrieving the value of a local variable is an immediate operation. Retrieving data from a remote website takes longer or might not complete at all. When an operation might take a long time to complete, you should write your code so that it executes asynchronously. Instead of waiting for an operation to complete, you should start the operation and then do something else until you receive a signal that the operation is complete. An analogy. Some telephone customer service lines require you to wait on hold – listening to really bad music – until a customer service representative is available. This is synchronous programming and very wasteful of your time. Some newer customer service lines enable you to enter your telephone number so the customer service representative can call you back when a customer representative becomes available. This approach is much less wasteful of your time because you can do useful things while waiting for the callback. There are several patterns that you can use to write code which executes asynchronously. The most popular pattern in JavaScript is the callback pattern. When you call a function which might take a long time to return a result, you pass a callback function to the function. For example, the following code (which uses jQuery) includes a function named getFlickrPhotos which returns photos from the Flickr website which match a set of tags (such as “dog” and “funny”): function getFlickrPhotos(tags, callback) { $.getJSON( "http://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?", { tags: tags, tagmode: "all", format: "json" }, function (data) { if (callback) { callback(data.items); } } ); } getFlickrPhotos("funny, dogs", function(data) { $.each(data, function(index, item) { console.log(item); }); }); The getFlickr() function includes a callback parameter. When you call the getFlickr() function, you pass a function to the callback parameter which gets executed when the getFlicker() function finishes retrieving the list of photos from the Flickr web service. In the code above, the callback function simply iterates through the results and writes each result to the console. Using callbacks is a natural way to perform asynchronous programming with JavaScript. Instead of waiting for an operation to complete, sitting there and listening to really bad music, you can get a callback when the operation is complete. Using Promises The CommonJS website defines a promise like this (http://wiki.commonjs.org/wiki/Promises): “Promises provide a well-defined interface for interacting with an object that represents the result of an action that is performed asynchronously, and may or may not be finished at any given point in time. By utilizing a standard interface, different components can return promises for asynchronous actions and consumers can utilize the promises in a predictable manner.” A promise provides a standard pattern for specifying callbacks. In the WinJS library, when you create a promise, you can specify three callbacks: a complete callback, a failure callback, and a progress callback. Promises are used extensively in the WinJS library. The methods in the animation library, the control library, and the binding library all use promises. For example, the xhr() method included in the WinJS base library returns a promise. The xhr() method wraps calls to the standard XmlHttpRequest object in a promise. The following code illustrates how you can use the xhr() method to perform an Ajax request which retrieves a file named Photos.txt: var options = { url: "/data/photos.txt" }; WinJS.xhr(options).then( function (xmlHttpRequest) { console.log("success"); var data = JSON.parse(xmlHttpRequest.responseText); console.log(data); }, function(xmlHttpRequest) { console.log("fail"); }, function(xmlHttpRequest) { console.log("progress"); } ) The WinJS.xhr() method returns a promise. The Promise class includes a then() method which accepts three callback functions: a complete callback, an error callback, and a progress callback: Promise.then(completeCallback, errorCallback, progressCallback) In the code above, three anonymous functions are passed to the then() method. The three callbacks simply write a message to the JavaScript Console. The complete callback also dumps all of the data retrieved from the photos.txt file. Creating Promises You can create your own promises by creating a new instance of the Promise class. The constructor for the Promise class requires a function which accepts three parameters: a complete, error, and progress function parameter. For example, the code below illustrates how you can create a method named wait10Seconds() which returns a promise. The progress function is called every second and the complete function is not called until 10 seconds have passed: (function () { "use strict"; var app = WinJS.Application; function wait10Seconds() { return new WinJS.Promise(function (complete, error, progress) { var seconds = 0; var intervalId = window.setInterval(function () { seconds++; progress(seconds); if (seconds > 9) { window.clearInterval(intervalId); complete(); } }, 1000); }); } app.onactivated = function (eventObject) { if (eventObject.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.launch) { wait10Seconds().then( function () { console.log("complete") }, function () { console.log("error") }, function (seconds) { console.log("progress:" + seconds) } ); } } app.start(); })(); All of the work happens in the constructor function for the promise. The window.setInterval() method is used to execute code every second. Every second, the progress() callback method is called. If more than 10 seconds have passed then the complete() callback method is called and the clearInterval() method is called. When you execute the code above, you can see the output in the Visual Studio JavaScript Console. Creating a Timeout Promise In the previous section, we created a custom Promise which uses the window.setInterval() method to complete the promise after 10 seconds. We really did not need to create a custom promise because the Promise class already includes a static method for returning promises which complete after a certain interval. The code below illustrates how you can use the timeout() method. The timeout() method returns a promise which completes after a certain number of milliseconds. WinJS.Promise.timeout(3000).then( function(){console.log("complete")}, function(){console.log("error")}, function(){console.log("progress")} ); In the code above, the Promise completes after 3 seconds (3000 milliseconds). The Promise returned by the timeout() method does not support progress events. Therefore, the only message written to the console is the message “complete” after 10 seconds. Canceling Promises Some promises, but not all, support cancellation. When you cancel a promise, the promise’s error callback is executed. For example, the following code uses the WinJS.xhr() method to perform an Ajax request. However, immediately after the Ajax request is made, the request is cancelled. // Specify Ajax request options var options = { url: "/data/photos.txt" }; // Make the Ajax request var request = WinJS.xhr(options).then( function (xmlHttpRequest) { console.log("success"); }, function (xmlHttpRequest) { console.log("fail"); }, function (xmlHttpRequest) { console.log("progress"); } ); // Cancel the Ajax request request.cancel(); When you run the code above, the message “fail” is written to the Visual Studio JavaScript Console. Composing Promises You can build promises out of other promises. In other words, you can compose promises. There are two static methods of the Promise class which you can use to compose promises: the join() method and the any() method. When you join promises, a promise is complete when all of the joined promises are complete. When you use the any() method, a promise is complete when any of the promises complete. The following code illustrates how to use the join() method. A new promise is created out of two timeout promises. The new promise does not complete until both of the timeout promises complete: WinJS.Promise.join([WinJS.Promise.timeout(1000), WinJS.Promise.timeout(5000)]) .then(function () { console.log("complete"); }); The message “complete” will not be written to the JavaScript Console until both promises passed to the join() method completes. The message won’t be written for 5 seconds (5,000 milliseconds). The any() method completes when any promise passed to the any() method completes: WinJS.Promise.any([WinJS.Promise.timeout(1000), WinJS.Promise.timeout(5000)]) .then(function () { console.log("complete"); }); The code above writes the message “complete” to the JavaScript Console after 1 second (1,000 milliseconds). The message is written to the JavaScript console immediately after the first promise completes and before the second promise completes. Summary The goal of this blog entry was to describe WinJS promises. First, we discussed how promises enable you to easily write code which performs asynchronous actions. You learned how to use a promise when performing an Ajax request. Next, we discussed how you can create your own promises. You learned how to create a new promise by creating a constructor function with complete, error, and progress parameters. Finally, you learned about several advanced methods of promises. You learned how to use the timeout() method to create promises which complete after an interval of time. You also learned how to cancel promises and compose promises from other promises.

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• First toe in the water with Object Databases : DB4O

  - by REA_ANDREW

  I have been wanting to have a play with Object Databases for a while now, and today I have done just that.  One of the obvious choices I had to make was which one to use.  My criteria for choosing one today was simple, I wanted one which I could literally wack in and start using, which means I wanted one which either had a .NET API or was designed/ported to .NET.  My decision was between two being: db4o MongoDb I went for db4o for the single reason that it looked like I could get it running and integrated the quickest.  I am making a Blogging application and front end as a project with which I can test and learn with these object databases.  Another requirement which I thought I would mention is that I also want to be able to use the said database in a shared hosting environment where I cannot install, run and maintain a server instance of said object database.  I can do exactly this with db4o. I have not tried to do this with MongoDb at time of writing.  There are quite a few in the industry now and you read an interesting post about different ones and how they are used with some of the heavy weights in the industry here : http://blog.marcua.net/post/442594842/notes-from-nosql-live-boston-2010 In the example which I am building I am using StructureMap as my IOC.  To inject the object for db4o I went with a Singleton instance scope as I am using a single file and I need this to be available to any thread on in the process as opposed to using the server implementation where I could open and close client connections with the server handling each one respectively.  Again I want to point out that I have chosen to stick with the non server implementation of db4o as I wanted to use this in a shared hosting environment where I cannot have such servers installed and run.     public static class Bootstrapper    {        public static void ConfigureStructureMap()        {            ObjectFactory.Initialize(x => x.AddRegistry(new MyApplicationRegistry()));        }    }    public class MyApplicationRegistry : Registry    {        public const string DB4O_FILENAME = "blog123";        public string DbPath        {            get            {                return Path.Combine(Path.GetDirectoryName(Assembly.GetAssembly(typeof(IBlogRepository)).Location), DB4O_FILENAME);            }        }        public MyApplicationRegistry()        {            For<IObjectContainer>().Singleton().Use(                () => Db4oEmbedded.OpenFile(Db4oEmbedded.NewConfiguration(), DbPath));            Scan(assemblyScanner =>            {                assemblyScanner.TheCallingAssembly();                assemblyScanner.WithDefaultConventions();            });        }    } So my code above is the structure map plumbing which I use for the application.  I am doing this simply as a quick scratch pad to play around with different things so I am simply segregating logical layers with folder structure as opposed to different assemblies.  It will be easy if I want to do this with any segment but for the purposes of example I have literally just wacked everything in the one assembly.  You can see an example file structure I have on the right.  I am planning on testing out a few implementations of the object databases out there so I can program to an interface of IBlogRepository One of the things which I was unsure about was how it performed under a multi threaded environment which it will undoubtedly be used 9 times out of 10, and for the reason that I am using the db context as a singleton, I assumed that the library was of course thread safe but I did not know as I have not read any where in the documentation, again this is probably me not reading things correctly.  In short though I threw together a simple test where I simply iterate to a limit each time kicking a common task off with a thread from a thread pool.  This task simply created and added an random Post and added it to the storage. The execution of the threads I put inside the Setup of the Test and then simply ensure the number of posts committed to the database is equal to the number of iterations I made; here is the code I used to do the multi thread jobs: [TestInitialize] public void Setup() { var sw = new System.Diagnostics.Stopwatch(); sw.Start(); var resetEvent = new ManualResetEvent(false); ThreadPool.SetMaxThreads(20, 20); for (var i = 0; i < MAX_ITERATIONS; i++) { ThreadPool.QueueUserWorkItem(delegate(object state) { var eventToReset = (ManualResetEvent)state; var post = new Post { Author = MockUser, Content = "Mock Content", Title = "Title" }; Repository.Put(post); var counter = Interlocked.Decrement(ref _threadCounter); if (counter == 0) eventToReset.Set(); }, resetEvent); } WaitHandle.WaitAll(new[] { resetEvent }); sw.Stop(); Console.WriteLine("{0:00}.{1:00} seconds", sw.Elapsed.Seconds, sw.Elapsed.Milliseconds); }   I was not doing this to test out the speed performance of db4o but while I was doing this I could not help but put in a StopWatch and see out of sheer interest how fast it would take to insert a number of Posts.  I tested it out in this case with 10000 inserts of a small, simple POCO and it resulted in an average of:  899.36 object inserts / second.  Again this is just  simple crude test which came out of my curiosity at how it performed under many threads when using the non server implementation of db4o. The spec summary of the computer I used is as follows: With regards to the actual Repository implementation itself, it really is quite straight forward and I have to say I am very surprised at how easy it was to integrate and get up and running.  One thing I have noticed in the exposure I have had so far is that the Query returns IList<T> as opposed to IQueryable<T> but again I have not looked into this in depth and this could be there already and if not they have provided everything one needs to make there own repository.  An example of a couple of methods from by db4o implementation of the BlogRepository is below: public class BlogRepository : IBlogRepository { private readonly IObjectContainer _db; public BlogRepository(IObjectContainer db) { _db = db; } public void Put(DomainObject obj) { _db.Store(obj); } public void Delete(DomainObject obj) { _db.Delete(obj); } public Post GetByKey(object key) { return _db.Query<Post>(post => post.Key == key).FirstOrDefault(); } … Anyways I hope to get a few more implementations going of the object databases and literally just get familiarized with them and the concept of no sql databases. Cheers for now, Andrew

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• Network issues with DNS not being found

  - by Anriëtte Combrink

  Hi there This is exactly like how our network looks like: Single server with a network router Everything is setup, but I cannot connect our Macs under the Login Options - Join... to this server. Our server's name is Toolbox and I have tried Toolbox.local, Toolbox.private, prepended the afp:// protocol to the name, but nothing, our Macs just don't want to connect this way. Our router has DHCP and gives out all the IP addresses naturally, would I have to add Toolbox.local to the DNS on the router and like it via static internal IP to the server? Our Macs keep giving the following error while trying to join the Network Account Server: Unable to add server Could not resolve the address (2200) What am I doing wrong?

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• ECMP Load Balancing in JUNOS

  - by SpacemanSpiff

  I'm trying to figure out how to use ECMP load balancing in JUNOS. I know this isn't the best way to load balance, but its quick and dirty and gets done what I need to. In ScreenOS this was pretty easy. Device: SRX220 JunOS: 10.3R2.11 Here's what I've got so far: routing-options { static { route 0.0.0.0/0 { next-hop [ 1.1.1.1 1.1.1.2 ]; metric 10; } } maximum-paths 2; Will that do it? Tom

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• How to get IIS7 to release a locked file?

  - by Jarrod Dixon

  During our production builds, a very large (10 megabyte) static content file in the root directory will sometimes be locked by IIS and cannot be deleted by the clean task. This is presumably because it is being actively served to one or more clients at the time. The build process stops the website before cleaning via c:\Windows\System32\inetsrv\appcmd.exe stop site http://oursite.com However, this does not release the file - we have to restart IIS to get the process to relinquish its lock. appcmd.exe allows you to take IIS down completely; we do not want to do this! Are there any other ways to get IIS to let go of a locked file, without restarting IIS? Simply stopping and starting the individual website is definitely not working to release the file lock.

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• Wireless and Wired Network Access at same time?

  - by grasper

  At work, I use a laptop. It is a Dell Latitude D630 with Windows XP. I work in a lab environment where I need to use the Ethernet Port as a Static IP to interact with a local network (which cannot talk to the outside world). What I would like to do is use the Wireless as the internet connection so i can check email, etc at the same time I am using the ethernet network... It seems like this is not possible. Is there a piece of software or a way to configure it to allow me to do this?

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• Hyper-V server 2012 nic teaming setup and virtual switch configuration

  - by Calvin

  I have a server with 2 nics. I installed Hyper-v 2012 server (not windows server 2012, no gui) I am trying to set up load balancing. I have both nics in the same switch currently in trunk mode and no native vlan. I use the new-netlbfoteam command to create a team with both nics, I can then "set-netlbfoteamnic "Nic Team" -vlanid 4" so that its available to me with a DHCP or static address but as soon as I try to create a virtual switch it becomes unresponsive. My guess is that is due to it removing the vlan tagging I setup. if I add-netlbfoteamnic and set it for vlan 4, then set the IP I can ping it from my management computer but I just get an error "an error occurred while attempting to connect to server "xxxxxx" Check that the Virtual Machine Management service is running and that you are authorized to connect to the server."

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• Java-JDBC-MySQL Error

  - by LeonardPeris

  I'm trying to get my java program to talk to a MySQL DB. So i did some reading and downloaded MySQL Connector/J. I've extracted it into my home directory ~. Here are the contents. user@hamster:~$ ls LoadDriver.class LoadDriver.java mysql-connector-java-5.1.18-bin.jar The contents of LoadDriver.java are user@hamster:~$ cat LoadDriver.java import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; // Notice, do not import com.mysql.jdbc.* // or you will have problems! public class LoadDriver { public static void main(String[] args) { try { // The newInstance() call is a work around for some // broken Java implementations Class.forName("com.mysql.jdbc.Driver").newInstance(); } catch (Exception ex) { System.out.println(ex); } } } The contents are the same from http://dev.mysql.com/doc/refman/5.1/en/connector-j-usagenotes-basic.html#connector-j-usagenotes-connect-drivermanager with the only change that the Exception is being printed to console in the catch block. I compile it as follows leonard@hamster:~$ javac LoadDriver.java When I try to execute it, the following is the ouput. leonard@hamster:~$ java LoadDriver java.lang.ClassNotFoundException: com.mysql.jdbc.Driver This output is consistent with the executing command, but when trying to run it with the prescribed CLASSPATH method I run into the following issue. leonard@hamster:~$ java -cp /home/leonard/mysql-connector-java-5.1.18-bin.jar LoadDriver Exception in thread "main" java.lang.NoClassDefFoundError: LoadDriver Caused by: java.lang.ClassNotFoundException: LoadDriver at java.net.URLClassLoader$1.run(URLClassLoader.java:217) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) Could not find the main class: LoadDriver. Program will exit. Am I missing something? How do I get MySQL's own code samples running.

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• Conditional Operator Example

  - by mbcrump

  If you haven’t taken the time to learn conditional operators, then now is the time. I’ve added a quick and dirty example for those on the forums.   Code Snippet using System; using System.Net.Mail; using System.Net; using System.Globalization; using System.Windows.Forms;   class Demo {     //Please use conditional statements in your code. See example below.       public static void Main()     {         int dollars = 10;           //Bad Coder Bad !!! Don't do this         if (dollars == 1)         {             Console.WriteLine("Please deposit {0} dollar.", dollars);         }         else         {             Console.WriteLine("Please deposit {0} dollars.", dollars);         }             //Good Coder Good !!! Do this         Console.WriteLine("Please deposit {0} dollar{1}.", dollars, dollars == 1 ? ' ' : 's');         //                                                          expression   ? true : false           Console.ReadLine();          } }

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• IPcop Multiple WAN Subnets

  - by obsidian

  We have an IPcop firewall and have had no issues with it. We've had a block of 10 IP addresses from our colocation provider and have been able port forward from those to internal servers as needed. We've recently needed additional IPs and the colocation provider issued an additional block of 10. The problem: The 10 new IP addresses issued are in a different subnet with a different gateway. The question: How do I add the new gateway into IPcop? How do I make it so that any outbound traffic in response to any inbound traffic from a new IP go back out through the new gateway? I attempted to add a static route via the console using the following command: route add -net x.x.x.x gw x.x.x.x netmask 255.255.255.192 I also added the new IPs as aliases and setup port forwarding as I've done with the existing IP block. However, when I attempt to access a web server from an external workstation, it just times out. Thanks in advance for your assistance.

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• share one vpn connection through windows rras with other clients

  - by KTYP

  I'm having a Cisco VPN connection to access our branch office. Since several people using the VPN I'm planing to install the VPN client on one of our server and share it through RRAS to save the licenses (like site - to - site). I install RRAS on a windows 2008 R2 (svrw2k8r2) and made the static routes on client computers. I could able to ping to the VPN's IP on svrw2k8r2 server but they can't seems to connect to the servers in other branch through this setup. Below is my setup My Branch Server: svrw2k8r2 - Windows 2008 R2 IP: 192.168.40.100/24 VPN IP: 10.0.100.12/8 Clients Win7 IP: 192.168.40.101 - 110 / 24 Other Branch Servers IP:10.10.0.10-20/24

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• Disable ProxyPass rules within a virtual host on apache 2

  - by chinto

  I have a global proxypass rule in httpd.conf rules at global level ProxyPass /test/css http://myserver:7788/test/css ProxyPassReverse /test/css http://myserver:7788/test/css and I have a virtual host Listen localhost:7788 NameVirtualHost localhost:7788 <VirtualHost localhost:7788> Alias /test/css/ "C:/jboss/server/default/deploy/test.ear/test-web-app.war/css/" </VirtualHost> I would like to disable all global proxypass rules applying in this virtual host? NoProxy doesn't seem to work. (The reason I would like to do this is I have below global rules which create a 502 proxy loop if applied within this virtual host #pass all requests to application server ProxyPass /test http://localhost:8080/test ProxyPassReverse /test http://localhost:8080/test ) What I'm trying to do is, serve all static content (like css) using apache, while still proxying all the rest of requests to the application server.

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• What is the difference between String and string in C#

  - by SAMIR BHOGAYTA

  string : ------ The string type represents a sequence of zero or more Unicode characters. string is an alias for String in the .NET Framework. 'string' is the intrinsic C# datatype, and is an alias for the system provided type "System.String". The C# specification states that as a matter of style the keyword ('string') is preferred over the full system type name (System.String, or String). Although string is a reference type, the equality operators (== and !=) are defined to compare the values of string objects, not references. This makes testing for string equality more intuitive. For example: String : ------ A String object is called immutable (read-only) because its value cannot be modified once it has been created. Methods that appear to modify a String object actually return a new String object that contains the modification. If it is necessary to modify the actual contents of a string-like object Difference between string & String : ---------- ------- ------ - ------ the string is usually used for declaration while String is used for accessing static string methods we can use 'string' do declare fields, properties etc that use the predefined type 'string', since the C# specification tells me this is good style. we can use 'String' to use system-defined methods, such as String.Compare etc. They are originally defined on 'System.String', not 'string'. 'string' is just an alias in this case. we can also use 'String' or 'System.Int32' when communicating with other system, especially if they are CLR-compliant. I.e. - if I get data from elsewhere, I'd deserialize it into a System.Int32 rather than an 'int', if the origin by definition was something else than a C# system.

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• Does NMBD depend on DHCP?

  - by Atilla Filiz

  I am trying to debug a SMB share issue on an embedded Linux setup. Before diving into source code, I want to make sure this is not a configuration problem. So here is my case: Scenario-1: dhcp server enabled by default 1- system boots 2- udhcpcd server starts 3- smb server starts (smbd) 4- nmb server starts (nmbd) 5- smb share accessible Scenario-2: dhcp server disabled by default 1- system boots 2- smbd starts 3- nmbd fails to start 4- smb share inaccessible 5- $/etc/init.d/udhcpcd start 6- $/usr/sbin/nmbd still fails without an error message The client pc and the server device have static IP addresses in both cases. Is it possible that, NMBD somehow depends on a DHCP server at start?

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• Cocos2d-x v3 invalid conversion from 'cocos2d::Layer* [on hold]

  - by Hammerh5

  Hello guys I'm learning cocos2d-x v3 right but most of the code that I can find is to the version 2. My specific error is this one, when I try to compile my cocos2s-x 3 project this error shows. invalid conversion from 'cocos2d::Layer to Game* [-fpermisive]* What I want to do is create a new game scene in the following code: //Game.cpp #include "Game.h" Scene* Game::scene() { scene *sc = CCScene::create(); sc->setTag(TAG_GAME_SCENE); const Game *g = Game::create(); //Here is where the conversions fails. sc->addChild(g, 0, TAG_GAME_LAYER); return sc; } Of course this is my header file //Game.h #include "cocos2d.h" #include "Mole.h" #include "AppDelegate.h" using namespace cocos2d; class Game: public cocos2d::Layer { cocos2d::CCArray *moles; float timeBetweenMoles, timeElapsed, increaseMolesAtTime, increaseElapsed, lastMoleHiTime; int molesAtOnce; cocos2d::CCSize s; bool isPaused; public: CCString *missSound, *hitSound; static cocos2d::Scene* scene(); virtual bool init(); void showMole(); void initializeGame(); void onEnterTransitionDidFinish(); void onExit(); void onTouchesBegan(const std::vector<cocos2d::Touch *> &touches, cocos2d::Event *event); void tick(float dt); cocos2d::CCArray* getMoles(bool isUp); //LAYER_CREATE_FUNC(Game); }; #endif /* GAME_H_ */ I don't know what's wrong I suppose this code works fine in Cocos2d-x v2. It's maybe some changes in the C++ version ?

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• HAProxy -- pause/queue all traffic without losing requests

  - by Marc

  I basically have the same problem as mentioned in this thread -- I would like to temporarily suspend all requests to all servers of a certain backend, so that I can upgrade the backend and the database it uses. Since this is a live system, I would like to queue up requests, and send them to the backend servers once they've been upgraded. Since I'm doing a database upgrade with the code change, I have to upgrade all backend servers simultaneously, so I can't just bring one down at a time. I tried using the tcp-request options combined with removing the static healthcheck file as mentioned in that thread, but had no luck. Setting the default "maxconn" value to 0 seems to pause and queue connections as desired, but then there seems to be no way to increase the value back to a positive number without restarting HAProxy, which kills all requests that had been queued up until that point. (The "hot-reconfiguration" options using -sf and -st start a new process, which doesn't seem to do what I want). Is what I'm trying to do possible?

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• Isolating VMware virtual machines from the network

  - by jetboy

  I have: VMware Workstation 7 running on a Windows 7 box (with a single NIC), with multiple virtual machines running a range of OSs. The host box is connected to a WRT54G router running Tomato firmware. The router is acting as a wireless bridge to another WRT54G that's wired to my broadband modem. I can access the VMs externally via VNC using VMware's Remote Display. Over time I've had these running: a. Using NAT networking (single IP) with port forwarding on the router and a custom port in VMware for each VM. b. Using bridged networking with static IPs assigned to each VM via MAC address, and port forwarding on the router to each IP running with standard ports. Either way, the host box, and other physical machines on the network are accessible from the VMs. Is there a way to isolate the VMs from the rest of the network, but still maintain internet access and remote VNC to the VMs?

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• IIS7 failover cluster across datacenters

  - by Scott

  Hello, I have servers in two different datacenters with each datacenter getting static IPs. What I would like to do is setup the servers as IIS7 servers and allowing them to failover from datacenter to datacenter with little (or preferably) no interruption. Servers on both sides are running Windows Server 2008 x64 with IIS7 (or 7.5 if needed). I am interested in how to point DNS traffic to the new datacenter without manual human intervention. For example: Datacenter A: IP: 192.168.1.115 Servers: Server 2008 x64 w/ IIS 7 Datacenter B: IP: 192.168.1.220 Servers: Server 2008 x64 w/ IIS 7 Other information: Domain Name: Example.org Domain DNS: 192.168.1.115 If Datacenter A connectivity went down (broken service line, etc.) how does the traffic know to route to Datacenter B on 192.168.1.220? Thanks, Scott

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• Observable Collections

  - by SGWellens

  I didn't think it was possible, but .NET surprised me yet again with a cool feature I never knew existed: The ObservableCollection. This became available in .NET 3.0. In essence, an ObservableCollection is a collection with an event you can connect to. The event fires when the collection changes. As usual, working with the .NET classes is so ridiculously easy, it feels like cheating. The following is small test program to illustrate how the ObservableCollection works. To start, create an ObservableCollection and then store it in the Session object so it will persist between page post backs. I also added the code to pull it out of Session state when there is a page post back:   public partial class _Default : System.Web.UI.Page{    public ObservableCollection<int> MyInts;     // ---- Page_Load ------------------------------     protected void Page_Load(object sender, EventArgs e)    {        if (IsPostBack == false)        {            MyInts = new ObservableCollection<int>();            MyInts.CollectionChanged += CollectionChangedHandler;             Session["MyInts"] = MyInts;  // store for use between postbacks        }        else        {            MyInts = Session["MyInts"] as ObservableCollection<int>;        }    } Here's the event handler I hooked up to the ObservableCollection, it writes status strings to a ListBox. Note: The event handler fires in a different thread than the IIS process thread.     // ---- CollectionChangedHandler -----------------------------------    //    // Something changed in the Observable collection     public void CollectionChangedHandler(object sender, NotifyCollectionChangedEventArgs e)    {        // need to dig around to get the current page and control to write to:        // (because this is in a separate thread)        Page CurrentPage = System.Web.HttpContext.Current.Handler as Page;        ListBox LB = CurrentPage.FindControl("ListBoxHistory") as ListBox;         switch (e.Action)        {            case NotifyCollectionChangedAction.Add:                LB.Items.Add("Add: " + e.NewItems[0]);                               break;             case NotifyCollectionChangedAction.Remove:                LB.Items.Add("Remove: " + e.OldItems[0]);                break;             case NotifyCollectionChangedAction.Reset:                LB.Items.Add("Reset: ");                break;             default:                LB.Items.Add(e.Action.ToString());                break;                     }    }  Next, add some buttons and code to exercise the ObservableCollection:     <br />    <asp:Button ID="ButtonAdd" runat="server" Text="Add" OnClick="ButtonAdd_Click" />    <asp:Button ID="ButtonRemove" runat="server" Text="Remove" OnClick="ButtonRemove_Click" />    <asp:Button ID="ButtonReset" runat="server" Text="Reset" OnClick="ButtonReset_Click" />    <asp:Button ID="ButtonList" runat="server" Text="List" OnClick="ButtonList_Click" />    <br />    <asp:TextBox ID="TextBoxInt" runat="server" Width="51px"></asp:TextBox>    <br />    <asp:ListBox ID="ListBoxHistory" runat="server" Height="255px" Width="195px">    </asp:ListBox>    // ---- Add Button --------------------------------------     protected void ButtonAdd_Click(object sender, EventArgs e)    {        int Temp;        if (int.TryParse(TextBoxInt.Text, out Temp) == true)            MyInts.Add(Temp);    }     // ---- Remove Button --------------------------------------     protected void ButtonRemove_Click(object sender, EventArgs e)    {        int Temp;        if (int.TryParse(TextBoxInt.Text, out Temp) == true)            MyInts.Remove(Temp);    }     // ---- Button Reset -----------------------------------     protected void ButtonReset_Click(object sender, EventArgs e)    {        MyInts.Clear();    }     // ---- Button List --------------------------------------     protected void ButtonList_Click(object sender, EventArgs e)    {        ListBoxHistory.Items.Add("MyInts:");        foreach (int i in MyInts)        {            // a bit of tweaking to get the text to be indented            ListItem LI = new ListItem("&nbsp;&nbsp;" + i.ToString());            LI.Text = Server.HtmlDecode(LI.Text);            ListBoxHistory.Items.Add(LI);        }    } Here's what it looks like after entering some numbers and clicking some buttons: An interesting note is that I had to use: System.Web.HttpContext.Current.Response to write to a control on the page. As mentioned earlier, this implies that the notification event is in a thread separate from the IIS thread. Another interesting note: From the online help: Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe What does that mean to Asp.Net developers? If you are going to share an ObservableCollection among different sessions, you'd better make it a static object. I hope someone finds this useful. Steve Wellens

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• How do I get information about the level to the player object?

  - by pangaea

  I have a design problem with my Player and Level class in my game. So below is a picture of the game. The problem is I don't want to move on the black space and only the white space. I know how to do this as all I need to do is get the check for the sf::Color::Black and I have methods to do this in the Level class. The problem is this piece of code void Game::input() { player.input(); } void Game::update() { (*level).update(); player.update(); } void Game::render() { (*level).render(); player.render(); } So as you there is a problem in that how do I get the map information from the Level class to the Player class. Now I was thinking if I made the Player position static and pass it into the Level as parameter in update I could do it. The problem is interaction. I don't know what to do. I could maybe make player go into the Level class. However, what if I want multiple levels? So I have big design problems that I'm trying to solve.

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