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  • for cycle not works allright

    - by joseph
    Hello. I call addNotify() method in class that I posted here. The problem is, that when I call addNotify() as it is in the code, setKeys(objs) do nothing. Nothing appears in my explorer of running app. But when I call addNotify()without loop(for int....), and add only one item to ArrayList, it shows that one item correctly. Does anybody knows where can be problem? See the cede class ProjectsNode extends Children.Keys{ private ArrayList objs = new ArrayList(); public ProjectsNode() { } @Override protected Node[] createNodes(Object o) { MainProject obj = (MainProject) o; AbstractNode result = new AbstractNode (new DiagramsNode(), Lookups.singleton(obj)); result.setDisplayName (obj.getName()); return new Node[] { result }; } @Override protected void addNotify() { //this loop causes nothing appears in my explorer. //but when I replace this loop by single line "objs.add(new MainProject("project1000"));", it shows that one item in explorer for (int i=0;i==10;i++){ objs.add(new MainProject("project1000")); } setKeys (objs); } }

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  • Closing InfoWindow with Google Maps API V3

    - by Oscar Godson
    I've seen the other posts, but they dont have the markers being looped through dynamically like mine. How do I create an event that will close the infowindow when another marker is clicked on using the following code? $(function(){ var latlng = new google.maps.LatLng(45.522015,-122.683811); var settings = { zoom: 10, center: latlng, disableDefaultUI:false, mapTypeId: google.maps.MapTypeId.SATELLITE }; var map = new google.maps.Map(document.getElementById("map_canvas"), settings); $.getJSON('api',function(json){ for (var property in json) { if (json.hasOwnProperty(property)) { var json_data = json[property]; var the_marker = new google.maps.Marker({ title:json_data.item.headline, map:map, clickable:true, position:new google.maps.LatLng( parseFloat(json_data.item.geoarray[0].latitude), parseFloat(json_data.item.geoarray[0].longitude) ) }); function buildHandler(map, marker, content) { return function() { var infowindow = new google.maps.InfoWindow({ content: '<div class="marker"><h1>'+content.headline+'</h1><p>'+content.full_content+'</p></div>' }); infowindow.open(map, marker); }; } new google.maps.event.addListener(the_marker, 'click',buildHandler(map, the_marker, {'headline':json_data.item.headline,'full_content':json_data.item.full_content})); } } }); });

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  • ASP.NET MVC Patterns

    - by Sam Striano
    Hello, I am fairly new to MVC, but after playing with it (MVC 3/Razor), I am hooked. I have a few questions: 1) What is the best, or most widely used pattern to develop MVC apps in? Repository, DDD, UOW? 2) I am using the Entity Framework 4, so could some please explain to me or point me to a good source that will explain the Repository Pattern w/EF4? Doesn't EF4 take place as the business layer and the data access layer? Does the Repository Pattern even provide a benefit? 3) Also, one last question, could someone explain the whole relationship between the Controller, the Model and the View? I get the basics, but maybe a little more in depth of the correct way to use it. View Models - Say I have a view that displays customer info, and one that edits it, should I have a view model and an edit model, or can the be passed around? 4) Examples?? Thanks for the help up front, $("Sam") ** EDIT ** Am I on the right track here: Public Class HomeController Inherits System.Web.Mvc.Controller Function Index(ByVal id As Integer) As ActionResult Return View(New HomeModel) End Function <HttpPost()> _ Function Index(ByVal Model As HomeModel) As ActionResult Return View(Model) End Function End Class Public Class HomeModel Private _Repository As IRepository(Of Customer) Public Property Customer As Customer Public Sub New() End Sub Public Sub New(ByVal ID As Integer) _Repository = New CustomerRepository Customer = _Repository.GetByID(ID) End Sub End Class Public Interface IRepository(Of T) Function GetByID(ByVal ID As Integer) As T Sub Add(ByVal Entity As T) Sub Delete(ByVal Entity As T) End Interface Public Class CustomerRepository Implements IRepository(Of Customer) Public Sub Add(ByVal Entity As Customer) Implements IRepository(Of Customer).Add End Sub Public Sub Delete(ByVal Entity As Customer) Implements IRepository(Of Customer).Delete End Sub Public Function GetByID(ByVal ID As Integer) As Customer Implements IRepository(Of Customer).GetByID Return New Customer With {.ID = ID, .FirstName = "Sam", .LastName = "Striano"} End Function End Class Public Class Customer Public Property ID As Integer Public Property FirstName As String Public Property LastName As String End Class

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  • Java Process.waitFor() and IO streams

    - by lynks
    I have the following code; String[] cmd = { "bash", "-c", "~/path/to/script.sh" }; Process p = Runtime.getRuntime().exec(cmd); PipeThread a = new PipeThread(p.getInputStream(), System.out); PipeThread b = new PipeThread(p.getErrorStream(), System.err); p.waitFor(); a.die(); b.die(); The PipeThread class is quite simple so I will include it in full; public class PipeThread implements Runnable { private BufferedInputStream in; private BufferedOutputStream out; public Thread thread; private boolean die = false; public PipeThread(InputStream i, OutputStream o) { in = new BufferedInputStream(i); out = new BufferedOutputStream(o); thread = new Thread(this); thread.start(); } public void die() { die = true; } public void run() { try { byte[] b = new byte[1024]; while(!die) { int x = in.read(b, 0, 1024); if(x > 0) out.write(b, 0, x); else die(); out.flush(); } } catch(Exception e) { e.printStackTrace(); } try { in.close(); out.close(); } catch(Exception e) { } } } My problem is this; p.waitFor() blocks endlessly, even after the subprocess has terminated. If I do not create the pair of PipeThread instances, then p.waitFor() works perfectly. What is it about the piping of io streams that is causing p.waitFor() to continue blocking? I'm confused as I thought the IO streams would be passive, unable to keep a process alive, or to make Java think the process is still alive.

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  • How does the socket API accept() function work?

    - by Eli Bendersky
    The socket API is the de-facto standard for TCP/IP and UDP/IP communications (that is, networking code as we know it). However, one of its core functions, accept() is a bit magical. To borrow a semi-formal definition: accept() is used on the server side. It accepts a received incoming attempt to create a new TCP connection from the remote client, and creates a new socket associated with the socket address pair of this connection. In other words, accept returns a new socket through which the server can communicate with the newly connected client. The old socket (on which accept was called) stays open, on the same port, listening for new connections. How does accept work? How is it implemented? There's a lot of confusion on this topic. Many people claim accept opens a new port and you communicate with the client through it. But this obviously isn't true, as no new port is opened. You actually can communicate through the same port with different clients, but how? When several threads call recv on the same port, how does the data know where to go? I guess it's something along the lines of the client's address being associated with a socket descriptor, and whenever data comes through recv it's routed to the correct socket, but I'm not sure. It'd be great to get a thorough explanation of the inner-workings of this mechanism.

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  • Find Control inside Grid Row

    - by arpan911
    i m using parent child grid and on child grid i m doing Show / hide threw java script. and child grid i bind run time with Templatecolumns like GridView NewDg = new GridView(); NewDg.ID = "dgdStoreWiseMenuStock"; TemplateField TOTAL = new TemplateField(); TOTAL.HeaderTemplate = new BusinessLogic.GridViewTemplateTextBox(ListItemType.Header, "TOTAL",e.Row.RowIndex ); TOTAL.HeaderStyle.Width = Unit.Percentage(5.00); TOTAL.ItemTemplate = new BusinessLogic.GridViewTemplateTextBox(ListItemType.Item, "TOTAL", e.Row.RowIndex); NewDg.Columns.Add(TOTAL); NewDg.DataSource = ds; NewDg.DataBind(); NewDg.Columns[1].Visible = false; NewDg.Columns[2].Visible = false; System.IO.StringWriter sw = new System.IO.StringWriter(); System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw); NewDg.RenderControl(htw); Now I have one TextBox inside Grid named "TOTAL" I want to Find This TextBox and wanna get its value. How can Get it ?

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  • Idea for a small project, should I use Python?

    - by Robb
    I have a project idea, but unsure if using Python would be a good idea. Firstly, I'm a C++ and C# developer with some SQL experience. My day job is C++. I have a project idea i'd like to create and was considering developing it in a language I don't know. Python seems to be popular and has piqued my interests. I definitely use OOP in programming and I understand Python would work fine with that style. I could be way off on this, I've only read small bits and pieces about the language. The project won't be public or anything, just purely something of my own creation do dabble in at home. So the project would essentially represent a simple game idea I have. The game would consist roughly these things: Data structures to hold specific information (would be strongly typed). A way to output the gamestate for the players. This is completely up in the air, it can be graphical or text based, I don't really care at this point. A way to save off game data for the players in something like a database or file system. A relatively easy way for me to input information and a 'GO' button which processes the changes and obviously creates a new gamestate. The game would function similar to a board game. Really nothing out of the ordinary when I look back at that list. Would this be a fun way to learn Python or should I select another language?

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  • Java Concurrency : Volatile vs final in "cascaded" variables?

    - by Tom
    Hello Experts, is final Map<Integer,Map<String,Integer>> status = new ConcurrentHashMap<Integer, Map<String,Integer>>(); Map<Integer,Map<String,Integer>> statusInner = new ConcurrentHashMap<Integer, Map<String,Integer>>(); status.put(key,statusInner); the same as volatile Map<Integer,Map<String,Integer>> status = new ConcurrentHashMap<Integer, Map<String,Integer>>(); Map<Integer,Map<String,Integer>> statusInner = new ConcurrentHashMap<Integer, Map<String,Integer>>(); status.put(key,statusInner); in case the inner Map is accessed by different Threads? or is even something like this required: volatile Map<Integer,Map<String,Integer>> status = new ConcurrentHashMap<Integer, Map<String,Integer>>(); volatile Map<Integer,Map<String,Integer>> statusInner = new ConcurrentHashMap<Integer, Map<String,Integer>>(); status.put(key,statusInner); In case the it is NOT a "cascaded" map, final and volatile have in the end the same effect of making shure that all threads see always the correct contents of the Map... But what happens if the Map iteself contains a map, as in the example... How do I make shure that the inner Map is correctly "Memory barriered"? Tanks! Tom

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  • image appears larger than bounding rectangle?

    - by Kildareflare
    Hello I'm implementing a custom print preview control. One of the objects it needs to display is an image which can be several pages high and wide. I've successfully divided the image into pages and displayed them in the correct order. Each "page" is drawn within the marginbounds. (That is, each page is sized to be the same as the marginBounds.) The problem I have is that the image the page represents exceeds the bottom margin. However if I draw a rectangle with the same dimensions as the image, at the same position as the image, the rectangle matches the marginbounds. Thus when drawn to the page (in print preview and printed page) the image is larger than a rectangle drawn based on the image dimensions. I.e. The image is drawn at the same size as e.MarignBounds and is drawn at e.MarginBounds.Location yet exceeds the bottom margin. How is this? I've checked resoutions at each step of the process and they are all 96DPI. //... private List<Image> m_printImages = new List<Image>(); //... private void ImagePrintDocument_PrintPage(object sender, PrintPageEventArgs e) { PrepareImageForPrinting(e); e.Graphics.DrawImage(m_printImages[m_currentPage], new Point(e.MarginBounds.X, e.MarginBounds.Y); e.Graphics.DrawRectangle(new Pen(Color.Blue, 1.0F), new Rectangle( new Point(e.MarginBounds.X, e.MarginBounds.Y), new Size(m_printImages[m_currentPage].Width, m_printImages[m_currentPage].Height))); //rest of handler } PS Not able to show an image as free image hosting blocked here.

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  • WPF - List items not visible in Blend when 'DisplayMemberPath' is used

    - by Andy T
    Hi, We're currently working out how to implement MVVM and I've got to the point where I've got the MVVM Light Toolkit set up in blend and can specify dummy data to be supplied if running in Blend. All good. I've created a dummy list of data. The list contains 6 instances of a very simple class called DummyItem which has Age and Name properties. Here's the main code from my 'DummyList' class: public class DummyItem{ public string Name; public int Age; public DummyItem(string name, int age){ this.Name = name; this.Age = age; } } public class DummyList : ArrayList { public DummyList() { this.Add(new DummyItem("Dummy1", 00)); this.Add(new DummyItem("Dummy2", 01)); this.Add(new DummyItem("Dummy3", 02)); this.Add(new DummyItem("Dummy4", 03)); this.Add(new DummyItem("Dummy5", 04)); this.Add(new DummyItem("Dummy6", 05)); } } Here's the operative part of my XAML. The DataContext line does work and points to the correct ViewModel. <Grid x:Name="LayoutRoot"> <ListBox x:Name="ListViewBox" DataContext="{Binding Source={StaticResource Locator}, Path=ListViewModel}" ItemsSource="{Binding TheList}" DisplayMemberPath="Name"> </ListBox> </Grid> The problem is, when I add 'DisplayMemberPath', as I have above, then I can no longer see the list items in Blend. If I remove 'DisplayMemberPath', then I see a list of objects (DummyItem) with their full path. When the app is run, everything works perfectly. It's just that in Blend itself I cannot see the list items when I use 'DisplayMemberPath'. Anyone know why I can't see the items inside Blend itself when I use DisplayMemberPath? Thanks! AT

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  • help with mysql triggers (checking values before insert)

    - by user332817
    hi I'm quite new to mysql and I'm trying to figure out how to use triggers. what I'm trying to do: I have 2 tables, max and sub_max, when I insert a new row to sub_max I want to check if the SUM of the values with the same foreign_key as the new row are less than the value in the max table. I think this sounds confusing so here are my tables: CREATE TABLE max( number INT , MaxAmount integer NOT NULL) CREATE TABLE sub_max( sub_number INT , sub_MaxAmount integer NOT NULL, number INT, FOREIGN KEY ( number ) REFERENCES max( number )) and here is my code for the trigger, I know the syntax is off but this is the best I could do from looking up tutorials. CREATE TRIGGER maxallowed after insert on submax FOR EACH ROW BEGIN DECLARE submax integer; DECLARE maxmax integer; submax = select sum(sub_MaxAmount) from sub_max where sub_number = new.sub_number; submax = submax + new. sub_MaxAmount; maxmax = select MaxAmount from max where number = new.number ; if max>maxmax rollback? END I wanted to know if I'm doing this remotely correctly. Thanks in advance.

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  • Apache gettext windows does not work/translate

    - by Prashant Kandathil
    I am new to gettext. Here is my setup: /Apache 2.2 PHP 5.3.6 Windows 7/ I have following code in the Apache/htdocs/test/index.php <?php $language = 'de_DE'; $translatefile = 'messages'; setlocale(LC_ALL, $language); putenv("LANG=".$language); bindtextdomain($translatefile, 'C:/locale'); textdomain($translatefile); echo gettext("Hello World!"); ?> I used PoEdit to generate the necessary translations under locale/de_DE/LC_MESSAGES/messsages.po & messages.mo The charset I used was UTF-8 When I visit http://localhost/test, the result is Hello World! when it should be Hall Welt! As a test, I opened command prompt and navigated to the test folder. Then I typed in php index.php The result that appeared in the console was Hall Welt! I am not sure why it is not working with Apache.

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  • Asterisk: Dropping calls with an "ast_yyerror"

    - by Nick
    I'm having an issue where asterisk will play our greeting to the caller, and then drop the call instead of making our phones ring. The bit of information I could find said it was caused by an error in evaluating a dialplan expression. I'm thinking it's this line: exten = START,n,GotoIf($[${FORCE_CLOSED}=TRUE]?CLOSED,1) But I'm not sure what's wrong with it. I see the following error on the console: [Apr 4 16:29:49] WARNING[27038]: ast_expr2.fl:459 ast_yyerror: ast_yyerror(): syntax error: syntax error, unexpected '=', expecting $end; Input:=TRUE^ Surrounding Console output: -- Executing [START@AGInbound:1] Answer("IAX2/AtlantaTeliax-10086", "") in new stack -- Executing [START@AGInbound:2] BackGround("IAX2/AtlantaTeliax-10086", 0000_AG_THANK_YOU_FOR_CALLING_AG") in new stack -- Playing '0000_AG_THANK_YOU_FOR_CALLING_AG.slin' (language 'en') [Apr 4 16:29:49] WARNING[27038]: ast_expr2.fl:459 ast_yyerror: ast_yyerror(): syntax error: syntax error, unexpected '=', expecting $end; Input: =TRUE ^ [Apr 4 16:29:49] WARNING[27038]: ast_expr2.fl:463 ast_yyerror: If you have questions, please refer to doc/tex/channelvariables.tex in the asterisk source. -- Executing [START@AGInbound:3] GotoIf("IAX2/AtlantaTeliax-10086", "?CLOSED,1") in new stack -- Executing [START@AGInbound:4] GotoIfTime("IAX2/AtlantaTeliax-10086", "9:30-17:0|mon-fri|*|*?OPEN,1") in new stack -- Executing [START@AGInbound:5] GotoIfTime("IAX2/AtlantaTeliax-10086", "10:0-18:30|sat|*|*?OPEN,1") in new stack -- Executing [START@AGInbound:6] GotoIfTime("IAX2/AtlantaTeliax-10086", "12:0-17:0|sun|*|*?OPEN,1") in new stack Relevant lines from the dial plan: exten = START,1,Answer() exten = START,n,Background(0000_AG_THANK_YOU_FOR_CALLING_AG) ; See if we're open ; Force Closed if no one's going to be answering exten = START,n,GotoIf($[${FORCE_CLOSED}=TRUE]?CLOSED,1) exten = START,n,GotoIfTime(${AG_WEEKDAY_OPEN_HOUR}:${AG_WEEKDAY_OPEN_MIN}-${AG$ exten = START,n,GotoIfTime(${AG_SATURDAY_OPEN_HOUR}:${AG_SATURDAY_OPEN_MIN}-${$ exten = START,n,GotoIfTime(${AG_SUNDAY_OPEN_HOUR}:${AG_SUNDAY_OPEN_MIN}-${AG_S$ ; ...and we're not. But maybe the time of day has been overridden? exten = START,n,GotoIf($[${OVERRIDE_TIME_OF_DAY}=TRUE]?OPEN,1) ; No override... We're definatly closed. exten = START,n,Goto(CLOSED,1)

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  • Timer Service in ejb 3.1 - schedule calling timeout problem

    - by Greg
    Hi Guys, I have created simple example with @Singleton, @Schedule and @Timeout annotations to try if they would solve my problem. The scenario is this: EJB calls 'check' function every 5 secconds, and if certain conditions are met it will create single action timer that would invoke some long running process in asynchronous fashion. (it's sort of queue implementation type of thing). It then continues to check, but as long as long running process is there it won't start another one. Below is the code I came up with, but this solution does not work, because it looks like asynchronous call I'm making is in fact blocking my @Schedule method. @Singleton @Startup public class GenerationQueue { private Logger logger = Logger.getLogger(GenerationQueue.class.getName()); private List<String> queue = new ArrayList<String>(); private boolean available = true; @Resource TimerService timerService; @Schedule(persistent=true, minute="*", second="*/5", hour="*") public void checkQueueState() { logger.log(Level.INFO,"Queue state check: "+available+" size: "+queue.size()+", "+new Date()); if (available) { timerService.createSingleActionTimer(new Date(), new TimerConfig(null, false)); } } @Timeout private void generateReport(Timer timer) { logger.info("!!--timeout invoked here "+new Date()); available = false; try { Thread.sleep(1000*60*2); // something that lasts for a bit } catch (Exception e) {} available = true; logger.info("New report generation complete"); } What am I missing here or should I try different aproach? Any ideas most welcome :) Testing with Glassfish 3.0.1 latest build - forgot to mention

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  • URI scheme is not "file"

    - by Ankur
    I get the exception: "URI scheme is not file" The url I am playing with is ... and it very much is a file http://local.wasp.uwa.edu.au/~pbourke/miscellaneous/domefisheye/ladybug/fish4.jpg What I am doing is trying to get the name of a file and then save that file (from another server) onto my computer/server from within a servlet. I have a String called "url", from thereon here is my code: url = Streams.asString(stream); //gets the URL from a form on a webpage System.out.println("This is the URL: "+url); URI fileUri = new URI(url); File fileFromUri = new File(fileUri); onlyFile = fileFromUri.getName(); URL fileUrl = new URL(url); InputStream imageStream = fileUrl.openStream(); String fileLoc2 = getServletContext().getRealPath("pics/"+onlyFile); File newFolder = new File(getServletContext().getRealPath("pics")); if(!newFolder.exists()){ newFolder.mkdir(); } IOUtils.copy(imageStream, new FileOutputStream("pics/"+onlyFile)); } The line causing the error is this one: File fileFromUri = new File(fileUri); I have added the rest of the code so you can see what I am trying to do.

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  • Convert InputStream to String with encoding given in stream data

    - by Quentin
    Hi, My input is a InputStream which contains an XML document. Encoding used in XML is unknown and it is defined in the first line of XML document. From this InputStream, I want to have all document in a String. To do this, I use a BufferedInputStream to mark the beginning of the file and start reading first line. I read this first line to get encoding and then I use an InputStreamReader to generate a String with the correct encoding. It seems that it is not the best way to achieve this goal because it produces an OutOfMemory error. Any idea, how to do it ? public static String streamToString(final InputStream is) { String result = null; if (is != null) { BufferedInputStream bis = new BufferedInputStream(is); bis.mark(Integer.MAX_VALUE); final StringBuilder stringBuilder = new StringBuilder(); try { // stream reader that handle encoding final InputStreamReader readerForEncoding = new InputStreamReader(bis, "UTF-8"); final BufferedReader bufferedReaderForEncoding = new BufferedReader(readerForEncoding); String encoding = extractEncodingFromStream(bufferedReaderForEncoding); if (encoding == null) { encoding = DEFAULT_ENCODING; } // stream reader that handle encoding bis.reset(); final InputStreamReader readerForContent = new InputStreamReader(bis, encoding); final BufferedReader bufferedReaderForContent = new BufferedReader(readerForContent); String line = bufferedReaderForContent.readLine(); while (line != null) { stringBuilder.append(line); line = bufferedReaderForContent.readLine(); } bufferedReaderForContent.close(); bufferedReaderForEncoding.close(); } catch (IOException e) { // reset string builder stringBuilder.delete(0, stringBuilder.length()); } result = stringBuilder.toString(); }else { result = null; } return result; } Regards, Quentin

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  • wcf class implementing multiple service contracts

    - by Archie
    Hello, I have a class TestService which implements two service contracts called IService1 and IService2. But I'm facing a difficulty in implementation. My Code looks as follows: Uri baseAddress = new Uri("http://localhost:8000/ServiceModel/Service"); Uri baseAddress1 = new Uri("http://localhost:8080/ServiceModel/Service1"); ServiceHost selfHost = new ServiceHost(typeof(TestService)); selfHost.AddServiceEndpoint(typeof(IService1), new WSHttpBinding(), baseAddress); selfHost.AddServiceEndpoint(typeof(IService2), new WSHttpBinding(), baseAddress1); ServiceMetadataBehavior smb = new ServiceMetadataBehavior(); smb.HttpGetEnabled = true; selfHost.Description.Behaviors.Add(smb); selfHost.Open(); Console.WriteLine("The service is ready."); Console.WriteLine("Press <ENTER> to terminate service."); Console.WriteLine(); Console.ReadLine(); selfHost.Close(); I'm getting a run time error as: The HttpGetEnabled property of ServiceMetadataBehavior is set to true and the HttpGetUrl property is a relative address, but there is no http base address. Either supply an http base address or set HttpGetUrl to an absolute address. What shall i do about it? Do I realy need two separate endpoints? Thanks.

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  • C#/.NET library for source code formatting, like the one used by Stack Overflow?

    - by Lasse V. Karlsen
    I am writing a command line tool to convert Markdown text to html output, which seems easy enough. However, I am wondering how to get nice syntax coloring for embedded code blocks, like the one used by Stack Overflow. Does anyone know either: What library StackOverflow is using or if there's a library out there that I can easily reuse? Basically it would need to have some of the same "intelligence" found in the one that Stack Overflow uses, by basically doing a best-attempt at figuring out the language in use to pick the right keywords. Basically, what I want is for my own program to handle a block like the following: if (a == 0) return true; if (a == 1) return false; // fall-back Markdown Sharp, the library I'm using, by default outputs the above as a simple pre/code html block, with no syntax coloring. I'd like the same type of handling as the formatting on Stack Overflow does, the above contains blue "return" keywords for example. Or, hmm, after checking the source of this Stack Overflow page after adding the code example, I notice that it too is formatted like a simple pre/code block. Is it pure javascript-magic at works here, so perhaps there's no such library? If there's no library that will automagically determine a possible language by the keywords used, is there one that would work if I explicitly told it the language? Since this is "my" markdown-commandline-tool, I can easily add syntax if I need to.

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  • ASP.NET CacheDependency out of ThreadPool

    - by Stephen
    In an async http handler, we add items to the ASP.NET cache, with dependencies on some files. If the async method executes on a thread from the ThreadPool, all is fine: AsyncResult result = new AsyncResult(context, cb, extraData); ThreadPool.QueueUserWorkItem(new WaitCallBack(DoProcessRequest), result); But as soon as we try to execute on a thread out of the ThreadPool: AsyncResult result = new AsyncResult(context, cb, extraData); Runner runner = new Runner(result); Thread thread = new Thread(new ThreadStart(runner.Run()); ... where Runner.Run just invokes DoProcessRequest, The dependencies do trigger right after the thread exits. I.e. the items are immediately removed from the cache, the reason being the dependencies. We want to use an out-of-pool thread because the processing might take a long time. So obviously something's missing when we create the thread. We might need to propagate the call context, the http context... Has anybody already encountered that issue? Note: off-the-shelf custom threadpools probably solve this. Writing our own threadpool is probably a bad idea (think NIH syndrom). Yet I'd like to understand this in details, though.

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  • Setting a profile property in asp.net MVC while creating a user.

    - by twal
    In my application, an authorized user will Register a new customer and set their username and password, etc. The customer will not be registering them self. I have the following code in a class file which creates the new user, and it works just fine. public MembershipCreateStatus CreateUser(string userName, string password, string email, string employeeID) { if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName"); if (String.IsNullOrEmpty(password)) throw new ArgumentException("Value cannot be null or empty.", "password"); if (String.IsNullOrEmpty(email)) throw new ArgumentException("Value cannot be null or empty.", "email"); MembershipCreateStatus status; /// _membershipProvider.CreateUser("asdas","ds123BB", email, "asdasd", "asdasdad", true, null, out status); _membershipProvider.CreateUser(userName, password, email, null, null, true, null, out status); string answer = status.ToString(); return status; } However I would also like to set an employeeID property for the profile when creating this user. how would I set the EmployeeID when creating a new user?? Thanks

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  • Problem with richfaces ajax datatable + buttons

    - by Schyzotrop
    Hello i have another problem with RichFaces this is my application and it shows how i want it to work : http://www.screencast.com/users/Schyzotrop/folders/Jing/media/a299dc1e-7a10-440e-8c39-96b1ec6e85a4 this is video of some glitch that i can't solve http://screencast.com/t/MDFiMGMzY the problem is that when i am trying to press any buttons on others than 1st category it won't do anything IF 1st category has less rows than the one i am calling it from from 1st category it works always i am using follwoing code in jsp for collumns : <h:form id="categoryAttributeList"> <rich:panel> <f:facet name="header"> <h:outputText value="Category Attribute List" /> </f:facet> <rich:dataTable id="table" value="#{categoryAttributeBean.allCategoryAttribute}" var="cat" width="100%" rows="10" columnClasses="col1,col2,col2,col3"> <f:facet name="header"> <rich:columnGroup> <h:column>Name</h:column> <h:column>Description</h:column> <h:column>Category</h:column> <h:column>Actions</h:column> </rich:columnGroup> </f:facet> <rich:column filterMethod="#{categoryAttributeFilteringBean.filterNames}"> <f:facet name="header"> <h:inputText value="#{categoryAttributeFilteringBean.filterNameValue}" id="input"> <a4j:support event="onkeyup" reRender="table , ds" ignoreDupResponses="true" requestDelay="700" oncomplete="setCaretToEnd(event);" /> </h:inputText> </f:facet> <h:outputText value="#{cat.name}" /> </rich:column> <rich:column filterMethod="#{categoryAttributeFilteringBean.filterDescriptions}"> <f:facet name="header"> <h:inputText value="#{categoryAttributeFilteringBean.filterDescriptionValue}" id="input2"> <a4j:support event="onkeyup" reRender="table , ds" ignoreDupResponses="true" requestDelay="700" oncomplete="setCaretToEnd(event);" /> </h:inputText> </f:facet> <h:outputText value="#{cat.description}" /> </rich:column> <rich:column filterMethod="#{categoryAttributeFilteringBean.filterCategories}"> <f:facet name="header"> <h:selectOneMenu value="#{categoryAttributeFilteringBean.filterCategoryValue}"> <f:selectItems value="#{categoryAttributeFilteringBean.categories}" /> <a4j:support event="onchange" reRender="table, ds" /> </h:selectOneMenu> </f:facet> <h:outputText value="#{cat.categoryID.name}" /> </rich:column> <h:column> <a4j:commandButton value="Edit" reRender="pnl" action="#{categoryAttributeBean.editCategoryAttributeSetup}"> <a4j:actionparam name="categoryAttributeID" value="#{cat.categoryAttributeID}" assignTo="#{categoryAttributeBean.id}" /> <a4j:actionparam name="state" value="edit" /> <a4j:actionparam name="editId" value="#{cat.categoryAttributeID}" /> </a4j:commandButton> <a4j:commandButton reRender="categoryAttributeList" value="Delete" action="#{categoryAttributeBean.deleteCategoryAttribute}"> <a4j:actionparam name="categoryAttributeID" value="#{cat.categoryAttributeID}" assignTo="#{categoryAttributeBean.id}" /> </a4j:commandButton> </h:column> <f:facet name="footer"> <rich:datascroller id="ds" renderIfSinglePage="false"></rich:datascroller> </f:facet> </rich:dataTable> <rich:panel id="msg"> <h:messages errorStyle="color:red" infoStyle="color:green"></h:messages> </rich:panel> </rich:panel> </h:form> and here is code of my backing bean @EJB private CategoryBeanLocal categoryBean; private CategoryAttribute categoryAttribute = new CategoryAttribute(); private ArrayList<SelectItem> categories = new ArrayList<SelectItem>(); private int id; private int categoryid; // Actions public void newCategoryAttribute() { categoryAttribute.setCategoryID(categoryBean.findCategoryByID(categoryid)); categoryBean.addCategoryAttribute(categoryAttribute); FacesContext.getCurrentInstance().addMessage("newCategoryAttribute", new FacesMessage("CategoryAttribute " + categoryAttribute.getName() + " created.")); this.categoryAttribute = new CategoryAttribute(); } public void editCategoryAttributeSetup() { categoryAttribute = categoryBean.findCategoryAttributeByID(id); } public void editCategoryAttribute() { categoryAttribute.setCategoryID(categoryBean.findCategoryByID(categoryid)); categoryBean.updateCategoryAttribute(categoryAttribute); FacesContext.getCurrentInstance().addMessage("newCategoryAttribute", new FacesMessage("CategoryAttribute " + categoryAttribute.getName() + " edited.")); this.categoryAttribute = new CategoryAttribute(); } public void deleteCategoryAttribute() { categoryAttribute = categoryBean.findCategoryAttributeByID(id); categoryBean.removeCategoryAttribute(categoryAttribute); FacesContext.getCurrentInstance().addMessage("categoryAttributeList", new FacesMessage("CategoryAttribute " + categoryAttribute.getName() + " deleted.")); this.categoryAttribute = new CategoryAttribute(); } // Getters public CategoryAttribute getCategoryAttribute() { return categoryAttribute; } public List<CategoryAttribute> getAllCategoryAttribute() { return categoryBean.findAllCategoryAttributes(); } public ArrayList<SelectItem> getCategories() { categories.clear(); List<Category> allCategory = categoryBean.findAllCategory(); Iterator it = allCategory.iterator(); while (it.hasNext()) { Category cat = (Category) it.next(); SelectItem select = new SelectItem(); select.setLabel(cat.getName()); select.setValue(cat.getCategoryID()); categories.add(select); } return categories; } public int getId() { return id; } public int getCategoryid() { return categoryid; } // Setters public void setCategoryAttribute(CategoryAttribute categoryAttribute) { this.categoryAttribute = categoryAttribute; } public void setId(int id) { this.id = id; } public void setCategoryid(int categoryid) { this.categoryid = categoryid; } and here is filtering bean : @EJB private CategoryBeanLocal categoryBean; private String filterNameValue = ""; private String filterDescriptionValue = ""; private int filterCategoryValue = 0; private ArrayList<SelectItem> categories = new ArrayList<SelectItem>(); public boolean filterNames(Object current) { CategoryAttribute currentName = (CategoryAttribute) current; if (filterNameValue.length() == 0) { return true; } if (currentName.getName().toLowerCase().contains(filterNameValue.toLowerCase())) { return true; } else { System.out.println("name"); return false; } } public boolean filterDescriptions(Object current) { CategoryAttribute currentDescription = (CategoryAttribute) current; if (filterDescriptionValue.length() == 0) { return true; } if (currentDescription.getDescription().toLowerCase().contains(filterDescriptionValue.toLowerCase())) { return true; } else { System.out.println("desc"); return false; } } public boolean filterCategories(Object current) { if (filterCategoryValue == 0) { getCategories(); filterCategoryValue = new Integer(categories.get(0).getValue().toString()); } CategoryAttribute currentCategory = (CategoryAttribute) current; if (currentCategory.getCategoryID().getCategoryID() == filterCategoryValue) { return true; } else { System.out.println(currentCategory.getCategoryID().getCategoryID() + "cate" + filterCategoryValue); return false; } } public ArrayList<SelectItem> getCategories() { categories.clear(); List<Category> allCategory = categoryBean.findAllCategory(); Iterator it = allCategory.iterator(); while (it.hasNext()) { Category cat = (Category) it.next(); SelectItem select = new SelectItem(); select.setLabel(cat.getName()); select.setValue(cat.getCategoryID()); categories.add(select); } return categories; } public String getFilterDescriptionValue() { return filterDescriptionValue; } public String getFilterNameValue() { return filterNameValue; } public int getFilterCategoryValue() { return filterCategoryValue; } public void setFilterDescriptionValue(String filterDescriptionValue) { this.filterDescriptionValue = filterDescriptionValue; } public void setFilterNameValue(String filterNameValue) { this.filterNameValue = filterNameValue; } public void setFilterCategoryValue(int filterCategoryValue) { this.filterCategoryValue = filterCategoryValue; } unfortunetly i can't even imagine what could cause this problem that's why i even made videos to help u understand my problem thanks for help!

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  • Change classloader

    - by Chris
    I'm trying to switch the class loader at runtime: public class Test { public static void main(String[] args) throws Exception { final InjectingClassLoader classLoader = new InjectingClassLoader(); Thread.currentThread().setContextClassLoader(classLoader); Thread thread = new Thread("test") { public void run() { System.out.println("running..."); // approach 1 ClassLoader cl = TestProxy.class.getClassLoader(); try { Class c = classLoader.loadClass("classloader.TestProxy"); Object o = c.newInstance(); c.getMethod("test", new Class[] {}).invoke(o); } catch (Exception e) { e.printStackTrace(); } // approach 2 new TestProxy().test(); }; }; thread.setContextClassLoader(classLoader); thread.start(); } } and: public class TestProxy { public void test() { ClassLoader tcl = Thread.currentThread().getContextClassLoader(); ClassLoader ccl = ClassToLoad.class.getClassLoader(); ClassToLoad classToLoad = new ClassToLoad(); } } (it is not relevant what the InjectingClassLoader is) I'd like to make the result of "approach 1" and "approach 2" exactly same, but it looks like thread.setContextClassLoader(classLoader) does nothing and the "approach 2" always uses the system classloader (can be determined by comparing tcl and ccl variables while debugging). Is it possible to make all classes loaded by new thread use given classloader?

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  • How to make a request from an android app that can enter a Spring Security secured webservice method

    - by johnrock
    I have a Spring Security (form based authentication) web app running CXF JAX-RS webservices and I am trying to connect to this webservice from an Android app that can be authenticated on a per user basis. Currently, when I add an @Secured annotation to my webservice method all requests to this method are denied. I have tried to pass in credentials of a valid user/password (that currently exists in the Spring Security based web app and can log in to the web app successfully) from the android call but the request still fails to enter this method when the @Secured annotation is present. The SecurityContext parameter returns null when calling getUserPrincipal(). How can I make a request from an android app that can enter a Spring Security secured webservice method? Here is the code I am working with at the moment: Android call: httpclient.getCredentialsProvider().setCredentials( //new AuthScope("192.168.1.101", 80), new AuthScope(null, -1), new UsernamePasswordCredentials("joeuser", "mypassword")); String userAgent = "Android/" + getVersion(); HttpGet httpget = new HttpGet(MY_URI); httpget.setHeader("User-Agent", userAgent); httpget.setHeader("Content-Type", "application/xml"); HttpResponse response; try { response = httpclient.execute(httpget); HttpEntity entity = response.getEntity(); ... parse xml Webservice Method: @GET @Path("/payload") @Produces("application/XML") @Secured({"ROLE_USER","ROLE_ADMIN","ROLE_GUEST"}) public Response makePayload(@Context Request request, @Context SecurityContext securityContext){ Payload payload = new Payload(); payload.setUsersOnline(new Long(200)); if (payload == null) { return Response.noContent().build(); } else{ return Response.ok().entity(payload).build(); } }

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  • Why the performance of following code is degrading when I use threads ?

    - by DotNetBeginner
    Why the performance of following code is degrading when I use threads ? **1.Without threads int[] arr = new int[100000000]; //Array elements - [0][1][2][3]---[100000000-1] addWithOutThreading(arr); // Time required for this operation - 1.16 sec Definition for addWithOutThreading public void addWithOutThreading(int[] arr) { UInt64 result = 0; for (int i = 0; i < 100000000; i++) { result = result + Convert.ToUInt64(arr[i]); } Console.WriteLine("Addition = " + result.ToString()); } **2.With threads int[] arr = new int[100000000]; int part = (100000000 / 4); UInt64 res1 = 0, res2 = 0, res3 = 0, res4 = 0; ThreadStart starter1 = delegate { addWithThreading(arr, 0, part, ref res1); }; ThreadStart starter2 = delegate { addWithThreading(arr, part, part * 2, ref res2); }; ThreadStart starter3 = delegate { addWithThreading(arr, part * 2, part * 3, ref res3); }; ThreadStart starter4 = delegate { addWithThreading(arr, part * 3, part * 4, ref res4); }; Thread t1 = new Thread(starter1); Thread t2 = new Thread(starter2); Thread t3 = new Thread(starter3); Thread t4 = new Thread(starter4); t1.Start(); t2.Start(); t3.Start(); t4.Start(); t1.Join(); t2.Join(); t3.Join(); t4.Join(); Console.WriteLine("Addition = "+(res1+res2+res3+res4).ToString()); // Time required for this operation - 1.30 sec Definition for addWithThreading public void addWithThreading(int[] arr,int startIndex, int endIndex,ref UInt64 result) { for (int i = startIndex; i < endIndex; i++) { result = result + Convert.ToUInt64(arr[i]); } }

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  • is an instance variable in an action of a controller available for all the controllers view?

    - by fenec
    I am just trying to printout the parameters that have been entered into my form. basically i create a new bet then i display the parameters: MIGRATION enter code here class CreateBets < ActiveRecord::Migration def self.up create_table :bets do |t| t.integer :accepted ,:default = 0 t.integer :user_1_id #proposer t.integer :user_2_id #receiver t.integer :team_1_id #proposer's team t.integer :team_2_id #receiver's team t.integer :game_id t.integer :winner t.integer :amount t.timestamps end end def self.down drop_table :bets end end CONTROLLER bets_controller.erb enter code here class BetsController < ApplicationController def index redirect_to new_bet_path end def new @b=Bet.new end def create @@points=params[:points] @@winner=params[:winner] end end VIEWS New.erb New Bet <% facebook_form_for Bet.new do |f| %> <%= f.text_field :amount, :label=>"points" %> <%= f.text_field :winner, :label=>"WinningTeam" %> <%= f.buttons "Bet" %> <% end %> create.erb enter code here points:<%= @@points %> <br> winner:<%= @@winner %>

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