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• ASP.NET - fast Segmented downoad of file through webservice

  - by H4mm3rHead

  Hi, Im doing this project where i need to download files through a webservice (images, videos). The download MUST go through an existing webservice. The existing webservice was made when there were no need to upload and download files but the project has changed and now we need to do It through a webservice. Right now I have implemented the download as a method that returns a byte[], I open a streamreader and resds the entire file into a byte[] and returns it to my method. This is working file on small files <~1Mb, above it takes too long time. I want to show some progress (e.g. when the user downlaods a 20Mb video) which i cannot do right now. And i want to make it download much faster (is a strategy to use multithreading and several threads that downloads a part of the file?). It is within a WPF application i need to do this. Any ideas on how to approach this?

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• How does git-diff generate hunk descriptions?

  - by RobM

  (git version 1.6.5.7) When I run git diff the output has a nice scope hint after the line numbers for my Python scripts, e.g.: diff --git a/file.py b/file.py index 024f5bb..c3b5c56 100644 --- a/file.py +++ b/file.py @@ -14,6 +14,8 @@ TITF: Test Infrastructure Tags Format ... @@ -1507,13 +1533,16 @@ class Tags( object ): ... Note that the line numbers are followed by TITF: Test Infrastructure Tags Format and class Tags( object ):. The first patch applies to module scope and the description TITF: Test Infrastructure Tags Format is the module's description. The second patch applies to a method of the Tags class. How does git generate these descriptions? How can I tweak them to show the method name that the patch applies to?

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• search engine crawling frequency

  - by Aditya Pratap Singh

  I want to design a search engine for news websites ie. download various article pages from these websites, index the pages, and answer search queries on the index. I want a short pseudocode to find an appropriate crawling frequency -- i do not want to crawl too often because the website may not have changed, and do not want to crawl too infrequently because index would then be out of date. Assume that crawling code looks as follows while(1) { sleep(sleep_interval); // sleep for sleep_interval crawl(website); // crawls the entire website diff = diff(currently_crawled_website, previously_crawled_website); // returns a % value of difference between the latest and previous crawls of the website sleep_interval = infer_sleep_interval(diff, sleep_interval); } looking for a pseudocode for the infer_sleep_interval method: long sleep_interval infer_sleep_interval(int diff_percentage,long previous_sleep_interval) { ... ... ... } i want to design method which adaptively alters the sleeping interval based on the update frequency of the website.

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• Squid reverse proxy array - siblings not communicating with each other

  - by V. Romanov

  I want to set up 2 squid servers to act as reverse proxy and cache for a webserver on our intranet. The load balancing will be done with DNS round robin or just different mappings for different clients. The thing is, I want both servers to try and contact each other to see if they have the object required in cache before contacting the webserver for it (the network that servers the webserver is the bottleneck and I'm trying to eliminate it) Both squids are configured the same, here are the relevant config lines : acl dvr1_cache_it_best_tv_com dstdomain dvr1.cache.it.best-tv.com acl squid1_it_best_tv_com dstdomain squid1.it.best-tv.com acl squid2_it_best_tv_com dstdomain squid2.it.best-tv.com http_access allow dvr1_cache_it_best_tv_com http_access allow squid1_it_best_tv_com http_access allow squid2_it_best_tv_com http_access allow all http_port 8081 accel defaultsite=dvr1.cache.it.best-tv.com cache_peer dvr1.origin.it.best-tv.com parent 80 0 no-query originserver name=Proxy_dvr1_origin_it_best_tv_com cache_peer squid1.it.best-tv.com sibling 8081 3130 weight=10 name=Proxy_Squid1_it_best_tv_com cache_peer squid2.it.best-tv.com sibling 8081 3130 weight=10 name=Proxy_Squid2_it_best_tv_com cache_peer_access Proxy_dvr1_origin_it_best_tv_com allow dvr1_cache_it_best_tv_com cache_peer_access Proxy_squid1_it_best_tv_com allow squid1_it_best_tv_com cache_peer_access Proxy_squid1_it_best_tv_com allow squid2_it_best_tv_com cache_peer_access Proxy_squid1_it_best_tv_com allow dvr1_cache_it_best_tv_com cache_peer_access Proxy_squid2_it_best_tv_com allow squid1_it_best_tv_com cache_peer_access Proxy_squid2_it_best_tv_com allow squid2_it_best_tv_com cache_peer_access Proxy_squid2_it_best_tv_com allow dvr1_cache_it_best_tv_com just to make it clear - dvr1.cache is the alias for the proxy servers. dvr1.origin is the web server. Both servers work, both serve content and cache it and work fine. However, when I clear the cache on one server and then access it, it gets the content from the parent (DVR1_ORIGIN) instead of going to the sibling squid. What did I configure wrong? Or perhaps I don't understand the architecture correctly? I read the squid manuals but as far as I see i did it all by the book and yet it doesn't work right. Any help will be appreciated!

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• Error when compiling c# project in VS2012 when using Postsharp

  - by Thewads

  I am currently working on a project where we were wanting to add PostSharp functionality. I have set up my Postsharp attribute as so [Serializable] public class NLogTraceAttribute : OnMethodBoundaryAspect { private readonly string _logLevel; ILogger logger; public NLogTraceAttribute(string logLevel) { _logLevel = logLevel; logger = new Logger("TraceAttribute"); } public override void OnEntry(MethodExecutionArgs args) { LogAction("Enter", args); } public override void OnExit(MethodExecutionArgs args) { LogAction("Leave", args); } private void LogAction(string action, MethodExecutionArgs args) { var argumentsInfo = args.GetArgumentsInfo(); logger.Log(_logLevel, "{0}: {1}.{2}{3}", action, args.Method.DeclaringType.Name, args.Method.Name, argumentsInfo); } } and trying to use it as [NLogTrace(NLogLevel.Debug)] However when compiling the project I am getting the following error: Error 26 Cannot serialize the aspects: Type 'NLog.Logger' in Assembly 'NLog, Version=2.0.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c' is not marked as serializable.. Any help would be appreciated

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• With Eclipse, in a PHP project with SVN, how to "tell" Eclipse to find autocompletion choice only in

  - by ranskalainen

  Hello, Using Eclipse on a PHP Project, I recently created a tag on my SVN. Since that day, let's say I'm working on a class in my trunk, when I ctrl+space in my code, Eclipse is getting really really slow (sometimes even freeze), and if I'm lucky, it will give me 2 responses for autocompletion : One referencing some method/class from the tag, one referencing method/class from the trunk. But right now, only the reference from the trunk would be useful for me. Is there a way to limit where Eclipse parse the code to give back autocompletion suggestion ? Thank you

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• Unique element ID to reference later

  - by Hanpan

  I'm trying to figure out a method of storing a unique reference to each tag on a particular page. I won't have any ability to edit the page content and I'll the generated UID to stay the same on every page refresh. Since browsers don't generate any kind of UID for elements, I was thinking that the only method to do this would be to execute a script which walks the DOM and creates a UID for each it comes across. I don't know how accurate this will be, especially considering I'll need to ensure it creates the same UID for the tag each time the script crawls the page. Can anyone think of any other, more accurate ways of mapping a page? Many thanks.

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• Guidelines of when to use locking

  - by miguel

  I would like to know if there are any guidelineswhich a developer should follow as to when (and where) to place locks. For instance: I understand that code such as this should be locked, to avoid the possibility of another thread changing the value of SomeHeapValue unexpectedly. class Foo { public SomeHeapObject myObject; public void DoSummat(object inputValue_) { myObject.SomeHeapValue = inputValue_; } } My question is, however, how deep does one go with the locking? For instance, if we have this code: class Foo { public SomeHeapObject myObject; public void DoSummat(object inputValue_) { myObject.SomeHeapValue = GetSomeHeapValue(); } } Should we lock in the DoSummat(...) method, or should we lock in the GetSomeHeapValue() method? Are there any guidelines that you all keep in mind when strcturing multi-threaded code?

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• How to store images without taking up huge amounts of RAM

  - by Sheeo

  I'm working on a silverlight project where users get to create their own Collages. The problem When loading a bunch of images by using the BitmapImage class, Silverlight hogs up huge unreasonable amounts of RAM. 150 pictures where single ones fill up at most 4,5mb takes up about 1,6GB of RAM--thus ending up throwing memory exceptions. I'm loading them through streams, since the user selects their own photos. What I'm looking for A class, method or some process to eliminate the huge amount of RAM being sucked up. I've tried using a WriteableBitmap to render the images into, but I find this method forces me to reinvent the wheel when it comes to drag/drop and other things I want users to be able to do with the images.

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• Custom dynamic error pages in Ruby on Rails not working

  - by PlanetMaster

  Hi, I'm trying to implement custom dynamic error pages following this post: http://www.perfectline.co.uk/blog/custom-dynamic-error-pages-in-ruby-on-rails I did exactly what the blog post says. I included config.action_controller.consider_all_requests_local = false in my environment.rb. But is not working. My browser shows: Routing Error No route matches "/555" with {:method=>:get} So, it looks like the rescues are not fired. I get the following in my log file: ActionController::RoutingError (No route matches "/555" with {:method=>:get}): Rendering rescues/layout (not_found) Is there some routing interfering with the code? I'm not sure what to look for. I'm running rails 2.3.5. Here is the routes.rb file: ActionController::Routing::Routes.draw do |map| # routing van property-url map.connect 'buy/:property_type_plural/:province/:city/:address/:house_number', :controller => 'properties' , :action => 'show', :id => 'whatever' map.myimmonatie 'myimmonatie' , :controller => 'myimmonatie/properties', :action => 'index' map.login "login", :controller => "user_sessions", :action => "create", :conditions => {:method => :post} map.login "login", :controller => "user_sessions", :action => "new" map.logout "logout", :controller => "user_sessions", :action => "destroy" map.buy "buy", :controller => 'buy' map.sell "sell", :controller => 'sell' map.home "home", :controller => 'home' map.disclaimer "disclaimer", :controller => 'disclaimer' map.sign_up "sign_up", :controller => 'users', :action => :new map.contact "contact", :controller => 'contact' map.resources :user_sessions map.resources :contact map.resources :password_resets map.resources :messages map.resources :users, :only => [:index,:new,:create,:activate,:edit,:profile,:password] map.resources :images map.resources :activation , :only => [:new,:resend] map.resources :email map.resources :properties, :except => [:index,:destroy] map.namespace :admin do |admin| admin.resources :users admin.resources :properties admin.resources :order_items, :as => :orders admin.resources :blog_posts, :as => :blog end map.connect 'myimmonatie/:action' , :controller => 'users', :id => 'current', :requirements => {:action => /(profile)|(password)|(email)/} map.namespace :myimmonatie do |myimmonatie| myimmonatie.resources :messages, :controller => 'messages' myimmonatie.resources :password, :as => "password", :controller => 'users', :action => 'password' myimmonatie.resources :properties , :controller => 'properties' myimmonatie.resources :orders , :only => [:index,:show,:create,:new] end map.root :controller => "home" map.connect ':controller/:action' map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' end ActionController::Routing::Translator.translate_from_file('config','i18n-routes.yml')

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• Separate functionality depending on Role in ASP.NET MVC

  - by Andrew Bullock

  I'm looking for an elegant pattern to solve this problem: I have several user roles in my system, and for many of my controller actions, I need to deal with slightly different data. For example, take /Users/Edit/1 This allows a Moderator to edit a users email address, but Administrators to edit a user's email address and password. I'd like a design for separating the two different bits of action code for the GET and the POST. Solutions I've come up with so far are: Switch inside each method, however this doesn't really help when i want different model arguments on the POST :( Custom controller factory which chooses a UsersController_ForModerators and UsersController_ForAdmins instead of just UsersController from the controller name and current user role Custom action invoker which choose the Edit_ForModerators method in a similar way to above Have an IUsersController and register a different implementation of it in my IoC container as a named instance based on Role Build an implementation of the controller at runtime using Castle DynamicProxy and manipulate the methods to those from role-based implementations Im preferring the named IoC instance route atm as it means all my urls/routing will work seamlessly. Ideas? Suggestions?

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• One Apache VirtualHost entry overrides another?

  - by johnlai2004

  I can't tell why one apache virtual host entry keeps overriding another. The following file // filename: cbl <VirtualHost 74.207.237.23:80> ServerAdmin [email protected] ServerName completebeautylist.com ServerAlias www.completebeautylist.com DocumentRoot /srv/www/cbl/production/public_html/ ErrorLog /srv/www/cbl/production/logs/error.log CustomLog /srv/www/cbl/production/logs/access.log combined </VirtualHost> keeps overriding this file // filename: theccco.org <VirtualHost 74.207.237.23:80> SuexecUserGroup "#1010" "#1010" ServerName theccco.org ServerAlias www.theccco.org ServerAlias webmail.theccco.org ServerAlias admin.theccco.org DocumentRoot /home/theccco/public_html ErrorLog /var/log/virtualmin/theccco.org_error_log CustomLog /var/log/virtualmin/theccco.org_access_log combined ScriptAlias /cgi-bin/ /home/theccco/cgi-bin/ DirectoryIndex index.html index.htm index.php index.php4 index.php5 <Directory /home/theccco/public_html> Options -Indexes +IncludesNOEXEC +FollowSymLinks allow from all AllowOverride All </Directory> <Directory /home/theccco/cgi-bin> allow from all </Directory> RewriteEngine on RewriteCond %{HTTP_HOST} =webmail.theccco.org RewriteRule ^(.*) https://theccco.org:20000/ [R] RewriteCond %{HTTP_HOST} =admin.theccco.org RewriteRule ^(.*) https://theccco.org:10000/ [R] Alias /dav /home/theccco/public_html <Location /dav> DAV On AuthType Basic AuthName theccco.org AuthUserFile /home/theccco/etc/dav.digest.passwd Require valid-user ForceType text/plain Satisfy All RewriteEngine off </Location> </VirtualHost> I tried a2ensite, a2dissite, and reloading I get this message * Reloading web server config apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [Thu Apr 15 10:47:36 2010] [warn] NameVirtualHost 74.207.237.23:443 has no VirtualHosts Aside from that, I don't know what else could be wrong. Can anyone tell me what to do?

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• C#: How to inherit constructors?

  - by Ian Boyd

  Imagine a base class with many constructors and a virtual method public class Foo { ... public Foo() {...} public Foo(int i) {...} ... public virtual void SomethingElse() {...} ... } and now I want to create a descendant class that overrides the virtual method: public class Bar : Foo { public override void SomethingElse() {...} } And another descendant that does some more stuff: public class Bah : Bar { public void DoMoreStuff() {...} } Do I really have to copy all constructors from Foo into Bar and Bah? And then if I change a constructor signature in Foo, do I have to update it in Bar and Bah? Is there no way to inherit constructors? Is there no way to encourage code reuse?

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• Passing array into constructor to use on JList

  - by OVERTONE

  I know the title sound confusing and thats because it is. its a bit long so try too stay with me. this is the layout i have my code designed variables constructor methods. im trying too fill a Jlist full on names. i want too get those names using a method. so here goes. in my variables i have my JList. its called contactNames; i also have an array which stores 5 strings which are the contacts names; heres the code for that anyway String contact1; String contact2; String contact3; String contact4; String contact5; String[] contactListNames; JList contactList; simple enough. then in my constructor i have the Jlist defined to fill itself with the contents of the array fillContactList(); JList contactList = new JList(contactListNames); that method fillContactList() is coming up shortly. notice i dont have the array defined in the constructor. so heres my first question. can i do that? define the array to contain something in te constructor rather than filling it fromt the array. now heres where stuff gets balls up. ive created three different methods all of which havent worked. basically im trying to fill the array with all of them. this is the simplest one. it doesnt set the Jlist, it doesnt do anything compilicated. all it trys too do is fill the array one bit at a time public void fillContactList() { for(int i = 0;i<3;i++) { try { String contact; System.out.println(" please fill the list at index "+ i); Scanner in = new Scanner(System.in); contact = in.next(); contactListNames[i] = contact; in.nextLine(); } catch(Exception e) { e.printStackTrace(); } } } unfortunately this doesnt qwork. i get the print out to fill it at index 0; i input something and i get a nice big stack trace starting at contactListNames[i] = contact; so my two questions in short are how i define an array in a constructor. and why cant i fill the array from that method. ************************888 **************************888 stack trace by request please fill the list at index 0 overtone java.lang.NullPointerException please fill the list at index 1 at project.AdminMessages.fillContactList(AdminMessages.java:408) at project.AdminMessages.<init>(AdminMessages.java:88) at project.AdminUser.createAdminMessages(AdminUser.java:32) at project.AdminUser.<init>(AdminUser.java:18) at project.AdminUser.main(AdminUser.java:47) it was a null poiinter exception

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• ASP.Net 4.0 - Response required in SiteMap building?

  - by Nick Craver

  I'm running into an issue upgrading a project to .Net 4.0...and having trouble finding any reason for the issue (or at least, the change causing it). Given the freshness of 4.0, not a lot of blogs out there for issues yet, so I'm hoping someone here has an idea. Preface: this is a Web Forms application, coming from 3.5 SP1 to 4.0. In the Application_Start event we're iterating through the SiteMap and constructing routes based off data there (prettifying URLs mostly with some utility added), that part isn't failing though...or at least isn't not getting that far. It seems that calling the SiteMap.RootNode (inside application_start) causes 4.0 to eat it, since the XmlSiteMapProvider.GetNodeFromXmlNode method has been changed, looking in reflector you can see it's hitting HttpResponse.ApplyAppPathModifier here: str2 = HttpContext.Current.Response.ApplyAppPathModifier(str2); HttpResponse wasn't used at all in this method in the 2.0 CLR, so what we had worked fine, in 4.0 though, that method is called as a result of this stack: [HttpException (0x80004005): Response is not available in this context.] System.Web.XmlSiteMapProvider.GetNodeFromXmlNode(XmlNode xmlNode, Queue queue) System.Web.XmlSiteMapProvider.ConvertFromXmlNode(Queue queue) System.Web.XmlSiteMapProvider.BuildSiteMap() System.Web.XmlSiteMapProvider.get_RootNode() System.Web.SiteMap.get_RootNode() Since Response isn't available here in 4.0, we get an error. To reproduce this, you can narrow the test case down to this in global: protected void Application_Start(object sender, EventArgs e) { var s = SiteMap.RootNode; //Kaboom! //or just var r = Context.Response; //or var r = HttpContext.Current.Response; //all result in the same "not available" error } Question: Am I missing something obvious here? Or, is there another event added in 4.0 that's recommended for anything related to SiteMap on startup? For anyone curious/willing to help, I've created a very minimal project (a default VS 2010 ASP.Net 4.0 site, all the bells & whistles removed and only a blank sitemap and the Application_Start code added). It's a small 10kb zip available here: http://www.ncraver.com/Test/SiteMapTest.zip Update: Not a great solution, but the current work-around is to do the work in Application_BeginRequest, like this: private static bool routesRegistered = false; protected void Application_BeginRequest(object sender, EventArgs e) { if (!routesRegistered) { Application.Lock(); if (!routesRegistered) RouteManager.RegisterRoutes(RouteTable.Routes); routesRegistered = true; Application.UnLock(); } } I don't like this particularly, feels like an abuse of the event to bypass the issue. Does anyone have at least a better work-around, since the .Net 4 behavior with SiteMap is not likely to change?

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• How to name an event handler of a private variable in Vb.Net following FxCop rules and Vb.Net standa

  - by SoMoS

  Hello, On one side, in Vb.Net when you add an event handler to an object the created method is named: <NameOfTheObject>_<NameOfTheMethod>. As I like to have consistent syntax I always follow this rule when creating event handlers by hand. On the other side when I create private variables I prefix them with m_ as this is a common thing used by the community, in C# people use to put _ at the beginning of a variable but this is no CLS compliant. At the end, when I create event handlers for events raised by private variables I end with Subs like m_myVariable_MyEvent. Code Analysis (Fx Cop) is complainig about this way of naming because the method does not start with uppercase and because the _, so the question is: What naming standards do you follow when creating event handlers by hand that follow the Fxcop rules if any? Thanks in advance.

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• STL Vectors, pointers and classes

  - by anubis9

  Hey! Let's say i have 2 classes: class Class1 { public: std::vector<CustomClass3*> mVec; public: Class1(); ~Class1() { //iterate over all the members of the vector and delete the objects } }; class InitializerClass2 { private: Class1 * mPtrToClass1; public: InitializerClass2(); void Initialize() { mPtrToClass1->mVec.push_back(new CustomClass3(bla bla parameters)); } }; Will this work? Or the memory allocated in the InitializerClass2::Initialize() method might get corrupted after the method terminates? Thanks!

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• Java: Non-static nested classes and instance.super()

  - by Kiv

  I'm having a hard time wrapping my head around non-static nested classes in Java. Consider the following example, which prints "Inner" and then "Child". class Outer { class Inner { Inner() { System.out.println("Inner"); } } } public class Child extends Outer.Inner { Child(Outer o) { o.super(); System.out.println("Child"); } public static void main(String args[]) { new Child(new Outer()); } } I understand that instances of Inner always have to be associated with an Outer instance, and that that applies to Child too since it extends Inner. My question is what the o.super() syntax means - why does it call the Inner constructor? I've only seen a plain super(args) used to call the superclass constructor and super.method() to call the superclass version of an overridden method, but never something of the form instance.super().

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• UIWebview contents as NSString from HTML

  - by Yoon Lee

  I'm trying to reading part of HTML source code from website that has been encapsulated by javascript;basically i'm trying to read email which appears in webview but not in real source code using NSString method of 'NSString stringWithContentsOfURL:(NSURL *)url'. it looks like code showing up before hitting up the inner java script (which executes and shows the email address to show). are there any way i can get into NSString the contents that I viewed over UIWebview? I tried to use the method 'webView stringByEvaluatingJavaScriptFromString' it worked for only displaying through webview browser didn't return any string value. Are there anyway I can get the string?

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• PTR and A record must match?

  - by somecallmemike

  RFC 1912 Section 2.1 states the following: Make sure your PTR and A records match. For every IP address, there should be a matching PTR record in the in-addr.arpa domain. If a host is multi-homed, (more than one IP address) make sure that all IP addresses have a corresponding PTR record (not just the first one). Failure to have matching PTR and A records can cause loss of Internet services similar to not being registered in the DNS at all. Also, PTR records must point back to a valid A record, not a alias defined by a CNAME. It is highly recommended that you use some software which automates this checking, or generate your DNS data from a database which automatically creates consistent data. This does not make any sense to me, should an ISP keep matching A records for every PTR record? It seems to me that it's only important if the IP address that the PTR record describes is hosting a service that is sensitive to DNS being mismatched (such as email hosting). In that case the forward zone would be configured under a domain name (examples follow the format 'zone - record'): domain.tld -> mail IN A 1.2.3.4 And the PTR record would be configured to match: 3.2.1.in-addr.arpa -> 4 IN PTR mail.domain.tld. Would there be any reason for the ISP to host a forward lookup for an IP address on their network like this?: ispdomain.tld -> broadband-ip-1 IN A 1.2.3.4

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• ToolStripComboBox + objects default string value

  - by Martin

  I am using a ToolStripComboBox to list some data. I am populating this combo with some custom objects: For Each obj As myObject In myObjectList myToolStripComboBox.Items.Add(obj) Next This works great except the text displayed in the combo is the name of the object class. I can understand why and realise that I need to do something to make the combo use a property from my class instead. The help files state: To add objects to the list at run time, assign an array of object references with the AddRange method. The list then displays the default string value for each object. You can add individual objects with the Add method. The bit in bold suggests I need to setup the default string value in my class. How would I go about doing this?

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• Safe HttpContext.Current.Cache Usage

  - by Burak SARICA

  Hello there, I use Cache in a web service method like this : var pblDataList = (List<blabla>)HttpContext.Current.Cache.Get("pblDataList"); if (pblDataList == null) { var PBLData = dc.ExecuteQuery<blabla>( @"SELECT blabla"); pblDataList = PBLData.ToList(); HttpContext.Current.Cache.Add("pblDataList", pblDataList, null, DateTime.Now.Add(new TimeSpan(0, 0, 15)), Cache.NoSlidingExpiration, CacheItemPriority.Normal, null); } I wonder is it thread safe? I mean the method is called by multiple requesters And more then one requester may hit the second line at the same time while the cache is empty. So all of these requesters will retrieve the data and add to cache. The query takes 5-8 seconds. May a surrounding lock statement around this code prevent that action? (I know multiple queries will not cause error but i want to be sure running just one query.)

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• Function Object in Java .

  - by Tony

  I wanna implement a javascript like method in java , is this possible ? Say , I have a Person class : public class Person { private String name ; private int age ; // constructor ,accessors are omitted } And a list with Person objects: Person p1 = new Person("Jenny",20); Person p2 = new Person("Kate",22); List<Person> pList = Arrays.asList(new Person[] {p1,p2}); I wanna implement a method like this: modList(pList,new Operation (Person p) { incrementAge(Person p) { p.setAge(p.getAge() + 1)}; }); modList receives two params , one is a list , the other is the "Function object", it loops the list ,and apply this function to every element in the list. In functional programming language,this is easy , I don't know how java do this? Maybe could be done through dynamic proxy, does that have a performance trade off?

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• Apache2 Re-Routing from Domain Name to Internal IP Address

  - by Richard Grey

  The problem that I am having, is that when someone goes to my domain name example.co.uk, for some reason, apache seems to be re-routing the request to the internal IP address of the server, i.e. 192.168.0.52 My Apache2 default sites enabled file is as follows: ServerAdmin [email protected] ServerName trusteeguard.co.uk ServerAlias www.trusteeguard.co.uk DocumentRoot /var/www <Directory /> Options FollowSymLinks AllowOverride All </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride All Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog /var/log/apache2/trusteeguard-error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/trusteeguard-access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride All Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> This is an Ubuntu box if that is any help ;)

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• C# System.Diagnostics.Debugger.Debug() stopped working

  - by Andrew Miner

  I'm working on a program which uses the System.Diagnostics.Debugger.Break() method to allow the user to set a breakpoint from the command-line. This has worked fine for many weeks now. However, when I was working on fixing a unit test today, I tried to use the debug switch from the command-line, and it didn't work. Here's what I've tried: I've confirmed that the Debug() method is really being called (by putting a System.Console.WriteLine() after it) I've confirmed that the build is still in Debug I've done a clean build I've restarted Product Studio A quick Google search didn't reveal anything, and the API documentation for .Net doesn't mention anything about this function not performing correctly. So... any ideas?

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