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  • java.rmi.UnmarshalException: unable to pull client classes by server

    - by andrews
    Hi, I have an RMI client/server set-up on two machines that works fine in a simple situation when the server doesn't require a client-side defned class. However, when I need to use a class defined on the client side I am unable to have the server unmarshall those classes. I suspect this is an issue with my java.rmi.server.codebase property that I pass in as argument to the client app. I followed Sun's RMI Tutorial trail and I think I have followed the steps exactly except that I don't specify a classpath argument when executing client and server because they execute in the directory right above the root package directory (however I tried that too with no effect). The exceptions I get when attempting to execute the different client-side combinations described in detail below are all the same: RmiServer exception: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: test.MyTask at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:353) at sun.rmi.transport.Transport$1.run(Transport.java:177) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:173) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:636) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy0.execute(Unknown Source) at test.myClient.main(myClient.java:32) The details are: My client/server rmi is set up over a home network behind a router. The router is assigned to a static ip address I will call myhostname. Appropriate port-mapping is set-up in the router that points to the right machines. role, machine, os, ip-address: server, venice, linux ubuntu 9.10, 10.0.1.2 client, naples, mac os x leopard, 10.0.1.4 I startup the server side as follows inside /home/andrews/workspace/epsilon/bin: 1 starting registry on the default port 1099: venice% rmiregistry & 2 starting web-server on port 2001 pointing to code base for common interfaces: venice% java webserver/ClassFileServer 2001 /home/andrew/workspace/epsilon/bin 3 starting server app (main class in test/myServer) which registers the server object: venice% java -Djava.rmi.server.codebase="http://myhostname:2001/" -Djava.security.policy=server.policy -Djava.rmi.server.hostname=myhostname test/myServer & Now the client side inside /Users/andrews/Development/Java/workspace/epsilon/bin: 1 start a local web server that can server client-side classes to the server (not sure if this is needed, but I added I tried it, and still no success; I have added port-mapping to the router for 2001 to venice, for 2002 to naples) naples$ java webserver/ClassFileServer 2002 /Users/andrews/Development/Java/workspace/epsilon/bin/ Trying to run the client (note: I don't specify the -cp argument because client executes right above the root package directory): 1 try #1 using an http hostname naples$ java -Djava.rmi.server.codebase=http://10.0.1.4:2002/ -Djava.security.policy=client.policy test.myClient myhostname Note 1: the myhostname argument at the end is passed-in to the client so that it resolves to server's rmi hostname. Note 2: I tried using localhost:2002 instead of 10.0.1.4:2002 too. Note 3: I tried using myhostname:2002 since myhostname is assigned to the router and I have proper port-mapping set-up, this address should resolve to naples and not venice 2 try #2: naples$ java -Djava.rmi.server.codebase=file:/Users/andrews/Development/Java/workspace/epsilon/bin/ -Djava.security.policy=client.policy test.myClient myhostname Note 1: the code base url format is correct, I created a small program to convert current file directory path into a url and used that. using file:///Users... has same effect. Other notes: 1 my server and client policy files correctly specify the path, as I've tested this setup with good and bad paths, and getting a security exception for bad path 2 this setup works if I don't use client-side defined objects, the client connects correctly to the server and the server executes. 3 when I place the client-side class on the server in the server's classpath, all executes fine. All help is appreciated.

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  • How to debug UrlRewriter.NET?

    - by vfilby
    I have looked at their help page it seems like I can register a debug logger that outputs information to the 'standard ASP.NET debug window'. My problem is I don't know what that means, if it means the debug output window in Visual Studio (where you see build output, debug output and more) I am not seeing any UrlRewriter debug output. The rules are working (mostly) I just want to get more debug output to fix issues. I added the register call to the rewriter section like this: <rewriter> <register logger="Intelligencia.UrlRewriter.Logging.DebugLogger, Intelligencia.UrlRewriter" /> .... </rewriter> I am hosting this website locally in IIS on Vista, to debug it I attach the debugger to the w3wp process. Other selected parts from the web.config" <compilation debug="true"> <assemblies> ... </assemblies> </compilation> <trace enabled="true"/> Where should I see the debug output from UrlRewriter.NET? If it is in the Visual Studio debug output window, any ideas why I am not seeing it there?

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  • Subview of custom NSView is resizing itself to fit within its superview

    - by Jonathan Patt
    I have a custom NSView which contains a subview—for the purposes of solving this issue, the top level view is simply acting as a container and automatically resizes to fit within the window. Its subview draws a rectangle 10 pixels inset from the edge of the window, except for the bottom, which should get clipped by the window until it's resized to show the entire rectangle. It does not, however, behave as I intend, and instead shrinks the height of the rectangle when its superview has a smaller height than it does. How do I avoid this and have it stay at its proper height and instead get clipped when the superview is smaller? The parent view's implementation code is: - (id)initWithFrame:(NSRect)frameRect { self = [super initWithFrame:frameRect]; if (self) { subView = [[SubView alloc] initWithFrame:frameRect]; } return self; } - (void)drawRect:(NSRect)dirtyRect { [[NSColor grayColor] set]; [subView setFrame:NSMakeRect(10, 10, dirtyRect.size.width - 20, 500)]; [self addSubview:subView]; } - (BOOL)isFlipped { return YES; } And the subview is just: - (void)drawRect:(NSRect)dirtyRect { [[NSColor blackColor] set]; [NSBezierPath strokeRect:dirtyRect]; } - (BOOL)isFlipped { return YES; }

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  • Error when calling javascript method from applet

    - by khue
    Hi, I am trying to call javascript method from an Applet using netscapte.java.JSObject. in the applet: JSObject window = JSObject.getWindow(this.Class); Object[] args = .... //arguments window.call("javascriptMethodName", args); But I get the exception at window.call: JavaScript error while calling "callFromJava" netscape.javascript.JSException: JavaScript error while calling "callFromJava" at sun.plugin2.main.client.MessagePassingJSObject.newJSException(Unknown Source) at sun.plugin2.main.client.MessagePassingJSObject.waitForReply(Unknown Source) at sun.plugin2.main.client.MessagePassingJSObject.call(Unknown Source) at TextBoxApplet.jButton1_actionPerformed(TextBoxApplet.java:57) at TextBoxApplet.access$000(TextBoxApplet.java:16) at TextBoxApplet$1.actionPerformed(TextBoxApplet.java:36) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) The JSObject is NOT null. Have anyone encountered this ? Thanks a lot.

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  • Problem in IE8 with GET Parameters in opening a new windows with javascript.

    - by amfa95
    Hi, I have a problem with IE8 and the opening of a new window with javascript and submitting parameters with special characters. <a href="javascript:oWin('/html/de/4664286/printregistrationcontent.html?12-security question&#61;Wie hei&#223;t Ihr Lieblingsrestaurant','PRINT',800,600);" class="print">Seite drucken</a> The Problem is the letter 'ß' (sharp S). As you can see the string above is encodes due to anti XSS. This link works in FF and IE6 but IE8 is transmitting the URL Parameter as character with code 65*** (don't know the exaxt value). In the opening window you will only see a square (because character with 65000+ is not printable). I also tried to use URL Encoding instead of HTML encoding <a href="javascript:oWin('/html/de/4664286/printregistrationcontent.html?12-security question%3DWie hei%C3%9Ft Ihr Lieblingsrestaurant','PRINT',800,600);" class="print">Seite drucken</a> If i click on this Link in FF or IE6 it works as expected, but IE8 will fail to transmit the "ß" to the server and therefor will also get it back in the wrong way. If i paste this url to the IE8 it will work too, but not if the window is opened by javascript. The Javascript function oWin is defined as follows function oWin(url,title,sizeH,sizeV) { winHandle = top.open(url,title,'toolbar=no,directories=no,status=yes,scrollbars=yes,menubar=no,resizable=no,width='+sizeH+',height='+sizeV); if(navigator.appVersion.indexOf("MSIE 3",0)==-1) id = setTimeout('winHandle.focus()',1000); } If someone has an idea where to look for the reason please answer to this. Thank you amfa

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  • Reading off a socket until end of line C#?

    - by Omar Kooheji
    I'm trying to write a service that listens to a TCP Socket on a given port until an end of line is recived and then based on the "line" that was received executes a command. I've followed a basic socket programming tutorial for c# and have come up with the following code to listen to a socket: public void StartListening() { _log.Debug("Creating Maing TCP Listen Socket"); _mainSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPEndPoint ipLocal = new IPEndPoint(IPAddress.Any, _port); _log.Debug("Binding to local IP Address"); _mainSocket.Bind(ipLocal); _log.DebugFormat("Listening to port {0}",_port); _mainSocket.Listen(10); _log.Debug("Creating Asynchronous callback for client connections"); _mainSocket.BeginAccept(new AsyncCallback(OnClientConnect), null); } public void OnClientConnect(IAsyncResult asyn) { try { _log.Debug("OnClientConnect Creating worker socket"); Socket workerSocket = _mainSocket.EndAccept(asyn); _log.Debug("Adding worker socket to list"); _workerSockets.Add(workerSocket); _log.Debug("Waiting For Data"); WaitForData(workerSocket); _log.DebugFormat("Clients Connected [{0}]", _workerSockets.Count); _mainSocket.BeginAccept(new AsyncCallback(OnClientConnect), null); } catch (ObjectDisposedException) { _log.Error("OnClientConnection: Socket has been closed\n"); } catch (SocketException se) { _log.Error("Socket Exception", se); } } public class SocketPacket { private System.Net.Sockets.Socket _currentSocket; public System.Net.Sockets.Socket CurrentSocket { get { return _currentSocket; } set { _currentSocket = value; } } private byte[] _dataBuffer = new byte[1]; public byte[] DataBuffer { get { return _dataBuffer; } set { _dataBuffer = value; } } } private void WaitForData(Socket workerSocket) { _log.Debug("Entering WaitForData"); try { lock (this) { if (_workerCallback == null) { _log.Debug("Initializing worker callback to OnDataRecieved"); _workerCallback = new AsyncCallback(OnDataRecieved); } } SocketPacket socketPacket = new SocketPacket(); socketPacket.CurrentSocket = workerSocket; workerSocket.BeginReceive(socketPacket.DataBuffer, 0, socketPacket.DataBuffer.Length, SocketFlags.None, _workerCallback, socketPacket); } catch (SocketException se) { _log.Error("Socket Exception", se); } } public void OnDataRecieved(IAsyncResult asyn) { SocketPacket socketData = (SocketPacket)asyn.AsyncState; try { int iRx = socketData.CurrentSocket.EndReceive(asyn); char[] chars = new char[iRx + 1]; _log.DebugFormat("Created Char array to hold incomming data. [{0}]",iRx+1); System.Text.Decoder decoder = System.Text.Encoding.UTF8.GetDecoder(); int charLength = decoder.GetChars(socketData.DataBuffer, 0, iRx, chars, 0); _log.DebugFormat("Read [{0}] characters",charLength); String data = new String(chars); _log.DebugFormat("Read in String \"{0}\"",data); WaitForData(socketData.CurrentSocket); } catch (ObjectDisposedException) { _log.Error("OnDataReceived: Socket has been closed. Removing Socket"); _workerSockets.Remove(socketData.CurrentSocket); } catch (SocketException se) { _log.Error("SocketException:",se); _workerSockets.Remove(socketData.CurrentSocket); } } This I thought was going to be a good basis for what I wanted to do, but the code I have appended the incoming characters to a text box one by one and didn't do anything with it. Which doesn't really work for what I want to do. My main issue is the decoupling of the OnDataReceived method from the Wait for data method. which means I'm having issues building a string (I would use a string builder but I can accept multiple connections so that doesn't really work. Ideally I'd like to look while listening to a socket until I see and end of line character and then call a method with the resulting string as a parameter. What's the best way to go about doing this.

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  • Add incremental numbers at the end of a string in a loop in Javascript.

    - by Kyle Sevenoaks
    This Javascript is part of a Foreach loop. var stickytooltip={ tooltipoffsets: [20, -30], //additional x and y offset from mouse cursor for tooltips fadeinspeed: 200, //duration of fade effect in milliseconds rightclickstick: false, //sticky tooltip when user right clicks over the triggering element (apart from pressing "s" key) ? stickybordercolors: ["#0a5692", "#0a5692"], //border color of tooltip depending on sticky state stickynotice: ["Press \"s\"", "or right click", "to sticky box"], //customize tooltip status message stickynotice2: "Click outside this box to hide it", //customize tooltip status message //***** NO NEED TO EDIT BEYOND HERE isdocked: false, positiontooltip:function($, $tooltip, e){ var x=e.pageX+this.tooltipoffsets[0], y=e.pageY+this.tooltipoffsets[1] var tipw=$tooltip.outerWidth(), tiph=$tooltip.outerHeight(), x=(x+tipw>$(document).scrollLeft()+$(window).width())? x-tipw-(stickytooltip.tooltipoffsets[0]*2) : x y=(y+tiph>$(document).scrollTop()+$(window).height())? $(document).scrollTop()+$(window).height()-tiph-10 : y $tooltip.css({left:x, top:y}) }, showbox:function($, $tooltip, e){ $tooltip.fadeIn(this.fadeinspeed) this.positiontooltip($, $tooltip, e) }, hidebox:function($, $tooltip){ if (!this.isdocked){ $tooltip.stop(false, true).hide() $tooltip.css({borderColor:'black'}).find('.stickystatus:eq(0)').css({background:this.stickybordercolors[0]}).html(this.stickynotice) } }, docktooltip:function($, $tooltip, e){ this.isdocked=true $tooltip.css({borderColor:'darkred'}).find('.stickystatus:eq(0)').css({background:this.stickybordercolors[1]}).html(this.stickynotice) }, init:function(targetselector, tipid){ jQuery(document).ready(function($){ var $targets=$(targetselector) var $tooltip=$('#'+tipid).appendTo(document.body) if ($targets.length==0) return var $alltips=$tooltip.find('div.atip') if (!stickytooltip.rightclickstick) stickytooltip.stickynotice[1]='' stickytooltip.stickynotice=stickytooltip.stickynotice.join(' ') stickytooltip.hidebox($, $tooltip) $targets.bind('mouseenter', function(e){ $alltips.hide().filter('#'+$(this).attr('data-tooltip')).show() stickytooltip.showbox($, $tooltip, e) }) $targets.bind('mouseleave', function(e){ stickytooltip.hidebox($, $tooltip) }) $targets.bind('mousemove', function(e){ if (!stickytooltip.isdocked){ stickytooltip.positiontooltip($, $tooltip, e) } }) $tooltip.bind("mouseenter", function(){ stickytooltip.hidebox($, $tooltip) }) $tooltip.bind("click", function(e){ e.stopPropagation() }) $(this).bind("click", function(e){ if (e.button==0){ stickytooltip.isdocked=false stickytooltip.hidebox($, $tooltip) } }) $(this).bind("contextmenu", function(e){ if (stickytooltip.rightclickstick && $(e.target).parents().andSelf().filter(targetselector).length==1){ //if oncontextmenu over a target element stickytooltip.docktooltip($, $tooltip, e) return false } }) $(this).bind('keypress', function(e){ var keyunicode=e.charCode || e.keyCode if (keyunicode==115){ //if "s" key was pressed stickytooltip.docktooltip($, $tooltip, e) } }) }) //end dom ready } } //stickytooltip.init("targetElementSelector", "tooltipcontainer") stickytooltip.init("*[data-tooltip]", "mystickytooltip") I need to just add some code to the end of "mystickytooltip" to add 1, 2, 3, 4 each time it loops. My JS-foo is nonexistant, please help :)

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  • Why isn't my WPF Datagrid showing data?

    - by Edward Tanguay
    This walkthrough says you can create a WPF datagrid in one line but doesn't give a full example. So I created an example using a generic list and connected it to the WPF datagrid, but it doesn't show any data. What do I need to change on the code below to get it to show data in the datagrid? ANSWER: This code works now: XAML: <Window x:Class="TestDatagrid345.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:toolkit="http://schemas.microsoft.com/wpf/2008/toolkit" xmlns:local="clr-namespace:TestDatagrid345" Title="Window1" Height="300" Width="300" Loaded="Window_Loaded"> <StackPanel> <toolkit:DataGrid ItemsSource="{Binding}"/> </StackPanel> </Window> Code Behind: using System.Collections.Generic; using System.Windows; namespace TestDatagrid345 { public partial class Window1 : Window { private List<Customer> _customers = new List<Customer>(); public List<Customer> Customers { get { return _customers; }} public Window1() { InitializeComponent(); } private void Window_Loaded(object sender, RoutedEventArgs e) { DataContext = Customers; Customers.Add(new Customer { FirstName = "Tom", LastName = "Jones" }); Customers.Add(new Customer { FirstName = "Joe", LastName = "Thompson" }); Customers.Add(new Customer { FirstName = "Jill", LastName = "Smith" }); } } }

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  • Binding to WPF ViewModel properties

    - by MartinHN
    I'm just playing around with WPF and MVVM, and I have made a simple app that displays a Rectangle that changes color whenever Network availability changes. But when that happens, I get this error: Cannot use a DependencyObject that belongs to a different thread than its parent Freezable. Code XAML <Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="400" Width="600"> <DockPanel LastChildFill="True"> <Rectangle x:Name="networkStatusRectangle" Width="200" Height="200" Fill="{Binding NetworkStatusColor}" /> </DockPanel> </Window> Code-behind using System.Windows; using WpfApplication1.ViewModels; namespace WpfApplication1 { /// <summary> /// Interaction logic for Window1.xaml /// </summary> public partial class Window1 : Window { public Window1() { InitializeComponent(); DataContext = new NetworkViewModel(); } } } ViewModel using System.ComponentModel; using System.Net.NetworkInformation; using System.Windows.Media; namespace WpfApplication1.ViewModels { public class NetworkViewModel : INotifyPropertyChanged { private Brush _NetworkStatusColor; public Brush NetworkStatusColor { get { return _NetworkStatusColor; } set { _NetworkStatusColor = value; NotifyOfPropertyChange("NetworkStatusColor"); } } public NetworkViewModel() { NetworkChange.NetworkAvailabilityChanged += new NetworkAvailabilityChangedEventHandler(NetworkChange_NetworkAvailabilityChanged); } protected void NetworkChange_NetworkAvailabilityChanged(object sender, NetworkAvailabilityEventArgs e) { if (e.IsAvailable) { this.NetworkStatusColor = new SolidColorBrush(Colors.Green); } else { this.NetworkStatusColor = new SolidColorBrush(Colors.Red); } } public event PropertyChangedEventHandler PropertyChanged = delegate { }; public void NotifyOfPropertyChange(string propertyName) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } } I assume that I should change the NetworkStatusColor property by invoking something?

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  • Linux networking crash: best steps to find out the cause?

    - by Aron Rotteveel
    One of our Linux (CentOS) servers was unreachable last night. The server was not reachable in any way except for the remote console. After logging in with the remote console, it turned out I could not ping any outside hosts either. A simple service network restart solved the issue, but I am still wondering what could have caused this. My log files seem to indicate no error at all (except for the various daemons that need a network connection and failed after the network failure). Are there any additional steps I can take to find out the cause of this problem? EDIT: this just happened again. The server was completely unresponsive until I issued a networking service restart. Any advise is welcome. Could this be caused by a faulty hardware component? As per Madhatters request, here are some excerpts from the log at the time (the network crashed at 20:13): /var/log/messages: Dec 2 20:01:05 graviton kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=<stripped> SRC=<stripped> DST=<stripped> LEN=40 TOS=0x00 PREC=0x00 TTL=101 ID=256 PROTO=TCP SPT=6000 DPT=3306 WINDOW=16384 RES=0x00 SYN URGP=0 Dec 2 20:01:05 graviton kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=<stripped> SRC=<stripped> DST=<stripped> LEN=40 TOS=0x00 PREC=0x00 TTL=100 ID=256 PROTO=TCP SPT=6000 DPT=3306 WINDOW=16384 RES=0x00 SYN URGP=0 Dec 2 20:01:05 graviton kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=<stripped> SRC=<stripped> DST=<stripped> LEN=40 TOS=0x00 PREC=0x00 TTL=101 ID=256 PROTO=TCP SPT=6000 DPT=3306 WINDOW=16384 RES=0x00 SYN URGP=0 Dec 2 20:13:34 graviton junglediskserver: Connection to gateway failed: xGatewayTransport - Connection to gateway failed. The first three messages are simple responses to iptables rules I have set up through the LFD firewall. The last message indicates that JungleDisk, which I use for backups can no longer connect to the gateway. Apart from this, there are no interesting messages around this time. EDIT 4 dec: as per Mattdm's request, here is the output of ethtool eth0: (Please not that these are the settings that currently work. If things go wrong again, I will be sure to post this again if necessary. Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Link detected: yes As per Joris' request, here is also the output of route -n: aron@graviton [~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface xx.xx.xx.58 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.42 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.43 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.41 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.46 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.47 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.44 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.45 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.50 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.51 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.48 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.49 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.54 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.52 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.53 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 xx.xx.xx.0 0.0.0.0 255.255.255.192 U 0 0 0 eth0 xx.xx.xx.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 xx.xx.xx.62 0.0.0.0 UG 0 0 0 eth0 The bottom xx.62 is my gateway. EDIT december 28th: the problem occurred again and I got the chance to compare some of the outputs of the above tests. What I found out is that arp -an returns an incomplete MAC address for my gateway (which is not under my control; the server is in a shared rack): During failure: ? (xx.xx.xx.62) at <incomplete> on eth0 After service network restart: ? (xx.xx.xx.62) at 00:00:0C:9F:F0:30 [ether] on eth0 Is this something I can fix or is it time for me to contact the data centre?

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  • Passing data to Winforms UI using BeginInvoke

    - by Bi
    I am a C# newbie and have a class that needs to pass row information to a grid in the windows form. What is the best way to do it? I have put in some example code for better understanding. public class GUIController { private My_Main myWindow; public GUIController( My_Main window ) { myWindow = window; } public void UpdateProducts( List<myProduct> newList ) { object[] row = new object[3]; foreach (myProduct product in newList) { row[0] = product.Name; row[1] = product.Status; row[2] = product.Day; //HOW DO I USE BeginInvoke HERE? } } } And the form class below: public class My_Main : Form { //HOW DO I GO ABOUT USING THIS DELEGATE? public delegate void ProductDelegate( string[] row ); public static My_Main theWindow = null; static void Main( ) { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); theWindow = new My_Main(); Application.Run(theWindow); } private void My_Main_Load( object sender, EventArgs e ) { /// Create GUIController and pass the window object gui = new GUIController( this ); } public void PopulateGrid( string[] row ) { ProductsGrid.Rows.Add(row); ProductsGrid.Update(); } }

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  • Using JSON with jRails

    - by Zachary
    I am currently trying to use AJAX in my application via jRails. I am trying to return a JSON object from my controller, and then parse it in my Javascript. I am using json2.js to do the parsing. Here is the code I currently have: function getSomething() { $.ajax({ type: "GET", url: "map/testjson", success: function(data) { var myData = JSON.parse(data[0]); window.alert(myData.login); } }); } and in the controller: class Map::MapController < ApplicationController def index end def testjson @message = User.find(:all) ActiveRecord::Base.include_root_in_json = false respond_to do |w| w.json { render :json => @message.to_json } end end end The window.alert simply says 'undefined' (without tics). However, if I change the javascript to window.alert(data) (the raw object returned by the controller) I get: [{"salt":"aSalt","name":"", "created_at":"2010-03-15T02:34:25Z","remember_token_expires_at": null,"crypted_password":"aPassword", "updated_at":"2010-03-15T02:34:25Z","id":1,"remember_token":null, "login":"zgwrig2","email":"[email protected]"}] This looks like an array of size 1, if I'm looking at it correctly, but I have tried just about every combination of JSON.parse on the data object that I can think of, and nothing seems to work. Any ideas on what I'm doing wrong here?

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  • Custom view in iPhone SDK gets placed incorrectly in realation to statusbar

    - by markqvist
    (ragh, i'm apparently not allowed to post images, so i have included links to the images in this post instead of embedding them) Im writing an iPhone application based on the navigation controller template, but I am not loading the actual navigation controller as the first view in the window. I create a new view controller from a xib, and then add that as a subview, and then only push the navigation view as a modal when i need it. Here's my application: didFinishLaunching ... method in the application deleate RootViewController *rootViewController = (RootViewController *)[navigationController topViewController]; rootViewController.managedObjectContext = self.managedObjectContext; mainViewController = [[MainViewController alloc] initWithNibName:@"MainViewController" bundle:[NSBundle mainBundle]]; mainViewController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [window addSubview:[mainViewController view]]; [[mainViewController view] setNeedsLayout]; [window makeKeyAndVisible]; return YES; It works but the view is not properly aligned with the statusbar: http://img.exdev.dk/1.png When i click "my ambiances" and push the navigation controller view, and then dismiss it again, the layout is fine: same link as above, just replace the 1 with a 2. Sorry for the hassle, apparently I can also only post one link.... Here's the code I use for presenting/dismissing the navigationcontroller: -(void)pushMyAmbiences { [mainViewController presentModalViewController:navigationController animated:TRUE]; } -(void)returnToMainView { [mainViewController dismissModalViewControllerAnimated:TRUE]; } Is there anything I'm missing here? Layout-wise? Something that needs to be set in the xib? In a vain attempt I tried calling setNeedsLayout on the view, no luck. Any help is greatly appreciated!

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  • Preloading Winforms

    - by msarchet
    I am currently working on a project where we have a couple very control heavy user controls that are being used inside a MDI Controller. This is a Line of Business app and it is very data driven. The problem that we were facing was the aforementioned controls would load very very slowly, we dipped our toes into the waters of multi-threading for the control loading but that was not a solution for a plethora of reasons. Our solution to increasing the performance of the controls ended up being to 'pre-load' the forms onto a hidden window, create a stack of the existing forms, and pop off of the stack as the user requested a form. Now the current issue that I'm seeing that will arise as we push this 'fix' out to our testers, and the ultimately our users is this: Currently the 'hidden' window that contains the preloaded forms is visible in task manager, and can be shut down thus causing all of the controls to be lost. Then you have to create them on the fly losing the performance increase. Secondly, when the user uses up the stack we lose the performance increase (current solution to this is discussed below). For the first problem, is there a way to hide this window from task manager, perhaps by creating a parent form that encapsulates both the main form for the program and the hidden form? Our current solution to the second problem is to have an inactivity timer that when it fires checks the stacks for the forms, and loads a new form onto the stack if it isn't full. However this still has the potential of causing a hang in the UI while it creates the forms. A possible solutions for this would be to put 'used' forms back onto the stack, but I feel like there may be a better way.

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  • Starting CLI application programmatically does not work depending on arguments

    - by Daniel Beck
    I try to start plink.exe (PuTTY Link, the command line utility/version of PuTTY) from a C# application to establish an SSH reverse tunnel, but it does no longer work as soon as I pass the correct parameters. What does that mean? The following works as expected: it opens a command line window, displays that I forgot to pass the password for the -pw argument quits, and shows the prompt. I know it got the arguments, since it specifically requests the one thing I did not provide. Uri uri = omitted; ProcessStartInfo info = new ProcessStartInfo(); info.FileName = "cmd"; info.Arguments = "/k \"C:\\Program Files (x86)\\PuTTY\\plink.exe\" -R 3389:" + uri.Host + ":" + uri.Port + " -N -l username -pw"; // TODO pwd Process p = Process.Start(info); I tried the same think with calling plink.exe directly instead of cmd.exe /k, but the window closes immediately, which is unfortunate for bug-hunting. BUT when I pass a password in the arguments, plink.exe displays the program help (showing available parameters) and quits: Uri uri = omitted; ProcessStartInfo info = new ProcessStartInfo(); info.FileName = "cmd"; info.Arguments = "/k \"C:\\Program Files (x86)\\PuTTY\\plink.exe\" -R 3389:" + uri.Host + ":" + uri.Port + " -N -l username -pw secretpassword"; Process p = Process.Start(info); No indication of missing parameters. Both the cmd /k and plink.exe variants do not work (the latter closes immediately, so no information regarding different behaviour). When I launch the application from the Windows 7 Start Menu launcher with the identical parameters, it opens a cmd.exe window and establishes the connection as requested. What's wrong? Is there a way plink.exe notices it's not running in a real shell? If yes, how can I circumvent it, like the Start Menu "prompt" does? I hope this question is right on SO, since it, though specifically for a single application, revolves around launching it successfully programmatically.

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  • Combine Text with a Draggable Mask AS3.0

    - by RC
    So I have an image that is the size of the stage: img_mc. Then I drew a small rectangle: mask_mc. The idea is to make a "window" of the small rectangle, view img_mc through the window, and be able to drag the window around. The following code works fine but I want to add text to the mask - "Drag Me!" or whatever. But if I group text with the mask it breaks down. If I make a separate text_mc I can drag it around but it's not part of the mask. How can I combine text with a mask? (sorry if this question is pathetically easy!) Thanks for any thoughts you can share! img_mc.mask = mask_mc; mask_mc.buttonMode = true; img_mc.cacheAsBitmap = true; //because I blurred the mask text_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragF); mask_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragF); stage.addEventListener(MouseEvent.MOUSE_UP, dropF); function dragF(event:MouseEvent):void{ mask_mc.startDrag(); } function dropF(event:MouseEvent):void{ mask_mc.stopDrag(); }

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  • Mixing secure & unsecure channels

    - by user305023
    I am unable to use an unsecure channel once a secure channel has already been registered. The code below works only if on the client side, the unsecured channel is registered before. Is it possible to mix secure and unsecure channels without any constraint on the registration order ? using System; using System.Collections; using System.Runtime.Remoting; using System.Runtime.Remoting.Channels; using System.Runtime.Remoting.Channels.Tcp; public class SampleObject : MarshalByRefObject { public DateTime GetTest() { return DateTime.Now; } } public class SampleObject2 : MarshalByRefObject { public DateTime GetTest2() { return DateTime.Now; } } static class ProgramClient { private static TcpClientChannel RegisterChannel(bool secure, string name, int priority) { IDictionary properties = new Hashtable(); properties.Add("secure", secure); properties.Add("name", name); properties.Add("priority", priority); var clientChannel = new TcpClientChannel(properties, null); ChannelServices.RegisterChannel(clientChannel, false); return clientChannel; } private static void Secure() { RegisterChannel(true, "clientSecure", 2); var testSecure = (SampleObject2)Activator.GetObject(typeof(SampleObject2), "tcp://127.0.0.1:8081/Secured.rem"); Console.WriteLine("secure: " + testSecure.GetTest2().ToLongTimeString()); } private static void Unsecure() { RegisterChannel(false, "clientUnsecure", 1); var test = (SampleObject)Activator.GetObject(typeof(SampleObject), "tcp://127.0.0.1:8080/Unsecured.rem"); Console.WriteLine("unsecure: " + test.GetTest().ToLongTimeString()); } internal static void MainClient() { Console.Write("Press Enter to start."); Console.ReadLine(); // Works only in this order Unsecure(); Secure(); Console.WriteLine("Press ENTER to end"); Console.ReadLine(); } } static class ProgramServer { private static TcpServerChannel RegisterChannel(int port, bool secure, string name) { IDictionary properties = new Hashtable(); properties.Add("port", port); properties.Add("secure", secure); properties.Add("name", name); //properties.Add("impersonate", false); var serverChannel = new TcpServerChannel(properties, null); ChannelServices.RegisterChannel(serverChannel, secure); return serverChannel; } private static void StartUnsecure() { RegisterChannel(8080, false, "unsecure"); RemotingConfiguration.RegisterWellKnownServiceType(typeof(SampleObject), "Unsecured.rem", WellKnownObjectMode.Singleton); } private static void StartSecure() { RegisterChannel(8081, true, "secure"); RemotingConfiguration.RegisterWellKnownServiceType(typeof(SampleObject2), "Secured.rem", WellKnownObjectMode.Singleton); } internal static void MainServer() { StartUnsecure(); StartSecure(); Console.WriteLine("Unsecure: 8080\n Secure: 8081"); Console.WriteLine("Press the enter key to exit..."); Console.ReadLine(); } } class Program { static void Main(string[] args) { if (args.Length == 1 && args[0] == "server") ProgramServer.MainServer(); else ProgramClient.MainClient(); } }

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  • Can I include a NSUserDefault password test in AppDelegate to load a loginView?

    - by Michael Robinson
    I have a name and password in NSUserDefaults for login. I want to place a test in my AppDelegate.m class to test for presence and load a login/signup loginView.xib modally if there is no password or name stored in the app. Here is the pulling of the defaults: -(void)refreshFields { NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; usernameLabel.text = [defaults objectForKey:kUsernameKey]; passwordLabel.text = [defaults objectForKey:kPasswordKey]; Here is the tabcontroller loading part: - (void)applicationDidFinishLaunching:(UIApplication *)application { firstTab = [[FirstTab alloc] initWithStyle:UITableViewStylePlain]; UINavigationController *firstNavigationController = [[UINavigationController alloc] initWithRootViewController:firstTab]; [firstTab release]; secondTab = // EDITED FOR SPACE thirdTab = // EDITED FOR SPACE tabBarController = [[UITabBarController alloc] init]; tabBarController.viewControllers = [NSArray arrayWithObjects:firstNavigationController, secondNavigationController, thirdNavigationController, nil]; [window addSubview:tabBarController.view]; [firstNavigationController release]; [secondNavigationController release]; [thirdNavigationController release]; [self logout]; [window makeKeyAndVisible]; Here is where the loginView.xib loads automatically: - (void)logout { loginViewController = [[LoginViewController alloc] initWithNibName:@"LoginView" bundle:nil]; UINavigationController *loginNavigationController = [[UINavigationController alloc] initWithRootViewController:loginViewController]; [loginViewController release]; [tabBarController presentModalViewController:loginNavigationController animated:YES]; [loginNavigationController release]; } I want to replace the above autoload with a test similar to below (that works) using IF-ELSE - (void)logout { if ([usernameLabel.text length] == 0 || [passwordLabel.text length] == 0) { loginViewController = [[LoginViewController alloc] initWithNibName:@"LoginView" bundle:nil]; UINavigationController *loginNavigationController = [[UINavigationController alloc] initWithRootViewController:loginViewController]; [loginViewController release]; [tabBarController presentModalViewController:loginNavigationController animated:YES]; [loginNavigationController release]; }else { [window addSubview:tabBarController.view];} Thanks in advance, I'm totally lost on this.

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  • How to reliably send a request cross domain and cross browser on page unload

    - by Agmin
    I have javascript code that's loaded by 3rd parties. The javascript keeps track of a number of metrics, and when a user exits the page I'd like to send the metrics back to my server. Due to XSS checks in some browsers, like IE, I cannot do a simple jquery.ajax() call. Instead, I'm appending an image src to the page with jquery. Here's the code, cased by browser: function record_metrics() { //Arbitrary code execution here to set test_url $esajquery('#MainDiv').append("<img src='" + test_url + "' />"); } if ($esajquery.browser.msie) { window.onbeforeunload = function() { record_metrics(); } } else { $esajquery(window).unload( function(){ record_metrics(); } ); } FF aborts the request to "test_url" if I use window.onbeforeunload, and IE8 doesn't work with jquery's unload(). IE8 also fails to work if the arbitrary test_url setting code is too long, although IE8 seems to work fine if the is immediately appended to the DOM. Is there a better way to solve this issue? Unfortunately this really needs to execute when a user leaves the page.

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  • Comet Jetty/Tomcat, having some browser issues with Firefox and Chrome

    - by ages04
    I am exploring the use of Comet for a project I am working on. I tried creating a test application first using Tomcat6 and CometProcessor API and then with Jetty7 Continuations. The application is kind of working on both but I am having some issues with the actual display of messages. I used the technique of creating an XMLHttpRequest Connection and keeping it open all the time so the server can continuously push data to all the clients connected whenever it is available. My client side code is something similar to this: function fn(){ var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function(){ if (xhr.readyState==3){ document.getElementById('dv').innerHTML =(xhr.responseText); } if (xhr.readyState==4){ alert ('done'); } } xhr.open("GET", "First", true); xhr.send(null); } I found this thing of using readyState 3 somewhere online. I am facing 2 problems currently: In Firefox this code works perfectly. But if I open a new tab or even a new browser window, it does not make a new connection to the server and nothing shows up on the new tab or window, only the first tab/window gets the display. I used wireshark to check this and its shows only 1 connection even after the 2nd tab is opened. I am unable to understand why this would happen. I have read about the 2 connection limit, but here there is only one connection. Secondly in Chrome, the above code does not work, and the callback is not invoked for readystate of 3, only when the connection is closed by the server i get the output. I would also like to ask which is the best way/framework for doing Comet with Java. I am currently using jQuery on the client side. Any suggestions would be greatly appreciated!! Thanks

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  • Broken flash movie player! allowFullScreen does not work with anything other than a wmode value of "

    - by lhnz
    I have a flash player on a page which plays videos. I also have modal popups which need to be able to display over the top of the flash player when they are opened, etc... I can't change either of these requirements since they are part of the spec I have been given. Flash seems to ignore z-indexes I set on it with css, and the modal popups will therefore only appear above the video player if I set the video player's wmode to opaque or transparent. However, if I do this then the full screen functionality stops working correctly: when I un-fullscreen the video it stays zoomed in. In short If you open a popup on an item page or another page containing flash the popup should be displayed above this. Flash ignores z-index values. You can stop flash ignoring z-index values by setting wmode to opaque or transparent rather than the default: window. This stops full screen from working correctly. Has anybody else faced this issue before? What can I do to fix it? I was thinking of recreating the video player with wmode=opaque whenever I opened a modal popup and then switching it back to wmode=window when the modal popup is closed, since this would mean that the popup should display above it (as wmode=opaque) and the fullscreen should work correct (as wmode=window). However, this is not ideal at all: as well as being a hack it would also mean that the video would stop playing if somebody clicked a button which opened a popup. Cheers!

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  • How to get the sending email address from outlook 2007

    - by Naresh
    I am working on outlook add-in project using Visual studio 2008 for MS Outlook 2007 in C#. Here I am explaining my problem... I got multiple accounts (3 Accounts) with my outlook 2007. I need to get accounts form Account box in New Mail Message window. When we click New Mail Message, a new window will appear from which we can send a new mail. Here (On this window) we can see Account Dropdown (Left side) under the Send Button. If we have multiple accounts with outlook, we can see all the accounts in Account Drop Down if we click on Account Box. If we click on the particular email, a right mark will appear to that Email Account and a message can bee seen on the top of the Send button is "This message will be sent via [email protected]". So, I want to get these email accounts into a string and that particular email account (which has right mark) into another string. I got these 3 email accounts into a string. But, I am not getting the particular email account(which has the right mark when we send a new email). I am using this code.... using Outlook = Microsoft.Office.Interop.Outlook; using Office = Microsoft.Office.Core; using Microsoft.Office.Interop.Outlook; Outlook._Application myOutlookApp = new Outlook.Application(); Outlook.Accounts myAccounts = myOutlookApp.Session.Accounts; foreach (Outlook.Account account in myAccounts) { string emailAddress = account.SmtpAddress; } I am able to get all the accounts from the above code..But, I just want to get the email address which we will use for sending an email at that particular moment..

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  • jQuery UI Question. How to pass parameters to a function.

    - by jiji40
    I am pretty new to jQuery. How do I pass parameters to a function? I found some jQueryUI demos and I got it working except "view" link. I have a problem with passing parameters to and show them in modal popup windows. I have "Create New User" button and "View" link on the page. Clicking "Create New User" does pass the parameters and show them on modal popup window. ('12345' in User ID textbox, 'John Starks' in User Name textbox) $(function() { ... //Create New User button $('#create-user') .button() .click( function() { $('#dialog-form').dialog('open'); userId.val('12345'); userName.val('John Starks'); } ); }); But, "View" link doesn't work... Clicking "View" link does pop up modal window with no value in the textbox(User ID and User Name) function doView( idP, nameP ) { $('#dialog-form2').dialog('open'); userId.val(idP); userName.val(nameP); } <a href="#" OnClick="doView('001','John Doe');" >view</a> ... How to pass the parameters to modal window? Thanks in advance.

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  • Find a better control

    - by Budda
    It is necessary to implement the following functionality: There is a rectangle "field", its size is 150x100 pixels. Field is split to locations, each location is 10x10 (totally 15x10 locations on the field). There are few "coins" (5, for example), each of them can be dropped into any location. The list of text messages should be displayed in the drop-down list if any coin is clicked (when any message is clicked, drop-down list should be hidden and coin should display the number of selected message from 0 to 9, for example). That should be done with Silverlight 4.0 I am going to implement custom control "Coin", it will have a view (with a circle), it will display some kind of popup-window (please advise, which one), focus will be set to this window. On "FocusLost" window will be closed (without changing message number), if any message from the list will be clicked then its number will be stored inside of coin. Question 1: is there any control that already has required functionality? Question 2: how to implement "drag-and-drop" of coins to the "field" (lets assume, they will be close to the field)? Any thought or ideas will be helpful. Thanks.

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  • How do I change the color settings in emacs23 running in a terminal emulator?

    - by Anonymous
    I use xterm and set its appearance in ~/.Xdefaults: XTerm*background: paleTurquoise XTerm*foreground: black I also use emacs, but set its appearance differently in ~/.emacs: (set-background-color "black") (set-foreground-color "yellow") I usually run emacs within the terminal emulator with emacs -nw, rather than creating a separate X window. For some reason, this doesn't work properly for emacs23; instead, emacs retains the pale turquoise background of my xterm window. Looking at what's new in emacs23, I noted that: ** When running in a new enough xterm (newer than version 242), Emacs asks xterm what the background color is and it sets up faces accordingly for a dark background if needed (the current default is to consider the background light). So it's a feature, not a bug? Anyway, is there some way that I can I tell emacs23 to ignore the xterm background settings when running in console mode, and use the settings in ~/.emacs instead? I'll also note that: It works fine in emacs23 running in a separate X window (without the -nw option). It worked fine in emacs22; and I'm not really sure whether I need to use emacs23... Running M-x set-background-color within emacs23 -nw has no effect. It's not just xterm: the same problem exists with $TERM=cygwin, for example.

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