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  • java.io.IOException: Premature EOF

    - by jouzef19
    Hi: I am trying to download an xml file using Stream and things was fine , until the xml size became bigger than 9 MB , so i've got this error java.io.IOException: Premature EOF this is the code BufferedInputStream bfi = null; try { bfi = new BufferedInputStream(new URL("The URL").openStream()); String name = "name.xml"; FileOutputStream fb = new FileOutputStream(name); BufferedOutputStream bout = new BufferedOutputStream(fb, 1024); byte[] data = new byte[1024]; int x = 0; while ((x = bfi.read(data, 0, 1024)) >= 0) { bout.write(data, 0, x); } this.deletePhishTankDatabase(this.recreateFileName()); ptda.insertDownloadTime(hour, day, month, year); bout.close(); bfi.close(); } catch (IOException ex) { Logger.getLogger(PhishTankDataBase.class.getName()).log(Level.SEVERE, null, ex); } finally { try { bfi.close(); } catch (IOException ex) { Logger.getLogger(PhishTankDataBase.class.getName()).log(Level.SEVERE, null, ex); } } } else { System.out.println("You can't do anything"); return; } thanks in advanced

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  • Getting problem in collision detection in Java Game

    - by chetans
    Hi I am developing Spaceship Game in which i am getting problem in collision detection of moving images Game has a spaceship and number of asteroids(obstacles) i want to detect the collision between them How can i do this?`package Game; import java.applet.Applet; import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Image; import java.awt.MediaTracker; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.net.MalformedURLException; import java.net.URL; public class ThreadInApplet extends Applet implements KeyListener { private static final long serialVersionUID = 1L; Image[] asteroidImage; Image spaceshipImage; int[] XPosObst,YPosObst; int numberOfObstacles=0,XPosOfSpaceship,YPosOfSpaceship; int spaceButtnCntr=0,noOfObstaclesLevel=20; boolean gameStart=false,collideUp=false,collideDown=false,collideLeft=false,collideRight=false; private Image offScreenImage; private Dimension offScreenSize,d; private Graphics offScreenGraphics; int speedObstacles=1; String spaceshipImagePath="images/spaceship.png",obstacleImagepath="images/asteroid.png"; String buttonToStart="Press Space to start"; public void init() { try { asteroidImage=new Image[noOfObstaclesLevel]; XPosObst=new int[noOfObstaclesLevel]; YPosObst=new int[noOfObstaclesLevel]; XPosOfSpaceship=getWidth()/2-35; YPosOfSpaceship=getHeight()-100; spaceshipImage=getImage(new URL(getCodeBase(),spaceshipImagePath)); for(int i=0;i<noOfObstaclesLevel;i++) { asteroidImage[i]=getImage(new URL(getCodeBase(),obstacleImagepath)); XPosObst[i]=(int) (Math.random()*700); YPosObst[i]=0; } MediaTracker tracker = new MediaTracker (this); for(int i=0;i<noOfObstaclesLevel;i++) { tracker.addImage (asteroidImage[i], 0); } } catch (MalformedURLException e) { e.printStackTrace(); } setBackground(Color.black); addKeyListener(this); } public void paint(Graphics g) { g.setColor(Color.white); if(gameStart==false) { g.drawString(buttonToStart, (getWidth()/2)-60, getHeight()/2); } g.drawString("HEADfitted Solutions Pvt.Ltd.", (getWidth()/2)-80, getHeight()-20); for(int n=0;n<numberOfObstacles;n++) { if(n>0) g.drawImage(asteroidImage[n],XPosObst[n],YPosObst[n],this); } g.drawImage(spaceshipImage,XPosOfSpaceship,YPosOfSpaceship,this); } @SuppressWarnings("deprecation") public void update(Graphics g) { d = size(); if((offScreenImage == null) || (d.width != offScreenSize.width) || (d.height != offScreenSize.height)) { offScreenImage = createImage(d.width, d.height); offScreenSize = d; offScreenGraphics = offScreenImage.getGraphics(); } offScreenGraphics.clearRect(0, 0, d.width, d.height); paint(offScreenGraphics); g.drawImage(offScreenImage, 0, 0, null); } public void keyReleased(KeyEvent arg0){} public void keyTyped(KeyEvent arg0) {} Thread mainThread=new Thread() { synchronized public void run () { try { //System.out.println("in main thread"); if (gameStart==true) { moveObstacles.start(); if(collide()==false) { createObsThread.start(); } } } catch (Exception e) { e.printStackTrace(); } } }; Thread createObsThread=new Thread() { synchronized public void run () { if (spaceButtnCntr==1) { if (collide()==false) { for(int g=0;g<noOfObstaclesLevel;g++) { try { sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } numberOfObstacles++; } } } } }; Thread moveObstacles=new Thread() // Moving Obstacle images downwards after every 10 ms { synchronized public void run () { while(YPosObst[19]!=600) { if (collide()==false) { //createObsThread.start(); for(int l=0;l } repaint(); try { sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } } } } }; public void keyPressed(KeyEvent e) { if(e.getKeyCode()==32) { gameStart=true; spaceButtnCntr++; if (spaceButtnCntr==1) { mainThread.start(); } } if(gameStart==true) { if(e.getKeyCode()==37 && collideLeft==false)//Spaceship movement left { new Thread () { synchronized public void run () { XPosOfSpaceship-=10; repaint(); } }.start(); } if(e.getKeyCode()==38 && collideUp==false)//Spaceship movement up { new Thread () { synchronized public void run () { YPosOfSpaceship-=10; repaint(); } }.start(); } if(e.getKeyCode()==39 && collideRight==false)//Spaceship movement right { new Thread () { synchronized public void run () { XPosOfSpaceship+=10; repaint(); } }.start(); } if(e.getKeyCode()==40 && collideDown==false)//Spaceship movement down { new Thread () { synchronized public void run () { YPosOfSpaceship+=10; repaint(); } }.start(); } } } /*public boolean collide() { int x0, y0, w0, h0, x2, y2, w2, h2; x0=XPosOfSpaceship; y0=YPosOfSpaceship; h0=spaceshipImage.getHeight(null); w0=spaceshipImage.getWidth(null); for(int i=0;i<20;i++) { x2=XPosObst[i]; y2=YPosObst[i]; h2=asteroidImage[i].getHeight(null); w2=asteroidImage[i].getWidth(null); if ((x0 > (x2 + w2)) || ((x0 + w0) < x2)) return false; System.out.println(x2+" "+y2+" "+h2+" "+w2); if ((y0 > (y2 + h2)) || ((y0 + h0) < y2)) return false; } return true; }*/ public boolean collide() { int x1,y1,x2,y2,x3,y3,x4,y4; //coordinates of obstacles int a1,b1,a2,b2,a3,b3,a4,b4; //coordinates of spaceship a1 =XPosOfSpaceship; b1=YPosOfSpaceship; a2=a1+spaceshipImage.getWidth(this); b2=b1; a3=a1; b3=b1+spaceshipImage.getHeight(this); a4=a2; b4=b3; for(int a=0;a if(x1>=a1 && x1<=a2 && x1<=b3 && x1>=b1) return (true); if(x2>=a1 && x2<=a2 && x2<=b3 && x2>=b1) return(true); //********checking asteroid touch spaceship from up direction******** if(y3==b1 && x4>=a1 && x4<=a2) { collideUp = true; return(true); } if(y3==b1 && x3>=a1 && x3<=a2) { collideUp = true; return(true); } //********checking asteroid touch spaceship from left direction****** if(x2==a1 && y4>=b1 && y4<=b3) { collideLeft=true; return(true); } if(x2==a1 && y2>=b1 && y2<=b3) { collideLeft=true; return(true); } //********checking asteroid touch spaceship from right direction***** if(x1==a2 && y3>=b2 && y3<=b4) { collideRight=true; return(true); } if(x1==a2 && y1>=b2 && y1<=b4) { collideRight=true; return(true); } //********checking asteroid touch spaceship from down direction***** if(y1==b3 && x2>=a3 && x2<=a4) { collideDown=true; return(true); } if(y1==b3 && x1>=a3 && x1<=a4) { collideDown=true; return(true); } else { collideUp=false; collideDown=false; collideLeft=false; collideRight=false; } } return(false); } } `

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  • WTK emulator bluetooth connection problem

    - by Gokhan B.
    Hi! I'm developing a J2ME program with eclipse / WTK 2.5.2 and having problem with connecting two emulators using bluetooth. There is one server and one .client running on two different emulators. The problem is client program cannot discover any bluetooth device. Here is the server and client codes: public Server() { try { LocalDevice local = LocalDevice.getLocalDevice(); local.setDiscoverable(DiscoveryAgent.GIAC); server = (StreamConnectionNotifier) Connector.open("btspp://localhost:" + UUID_STRING + ";name=" + SERVICE_NAME); Util.Log("EchoServer() Server connector open!"); } catch (Exception e) {} } after calling Connector.open, I get following warning in console, which i believe is related: Warning: Unregistered device: unspecified and client code that searches for devices: public SearchForDevices(String uuid, String nm) { UUIDStr = uuid; srchServiceName = nm; try { LocalDevice local = LocalDevice.getLocalDevice(); agent = local.getDiscoveryAgent(); deviceList = new Vector(); agent.startInquiry(DiscoveryAgent.GIAC, this); // non-blocking } catch (Exception e) {} } system never calls deviceDiscovered, but calls inquiryCompleted() with INQUIRY_COMPLETED paramter, so I suppose client program runs fine. Bluetooth is enabled at emulator settings.. any ideas ?

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  • Build error with variables and url_for in Flask

    - by Rob
    Have found one or two people on the interwebs with similar problems, but haven't seen a solution posted anywhere. I'm getting a build error from the code/template below, but can't figure out where the issue is or why it's occurring. It appears that the template isn't recognizing the function, but don't know why this would be occurring. Any help would be greatly appreciated - have been pounding my against the keyboard for two nights now. Function: @app.route('/viewproj/<proj>', methods=['GET','POST']) def viewproj(proj): ... Template Excerpt: {% for project in projects %} <li> <a href="{{ url_for('viewproj', proj=project.project_name) }}"> {{project.project_name}}</a></li> {% else %} No projects {% endfor %} Error log: https://gist.github.com/1684250 EDIT: Also wanted to include that it's not recognizing the variable "proj" when building the URL, so it's just appending the value as a parameter. Here's an example: //myproject/viewproj?projname=what+up Last few lines: [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] File "/srv/www/myproject.com/myproject/templates/layout.html", line 103, in top-level template code, referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] {% block body %}{% endblock %}, referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] File "/srv/www/myproject.com/myproject/templates/main.html", line 34, in block "body", referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] , referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] File "/usr/lib/python2.7/dist-packages/flask/helpers.py", line 195, in url_for, referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] return ctx.url_adapter.build(endpoint, values, force_external=external), referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] File "/usr/lib/pymodules/python2.7/werkzeug/routing.py", line 1409, in build, referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] raise BuildError(endpoint, values, method), referer: xx://myproject.com/ [Wed Jan 25 09:47:34 2012] [error] [client 199.58.143.128] BuildError: ('viewproj', {'proj': '12th'}, None), referer: xx://myproject.com/

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  • Memory mapped files and "soft" page faults. Unavoidable?

    - by Robert Oschler
    I have two applications (processes) running under Windows XP that share data via a memory mapped file. Despite all my efforts to eliminate per iteration memory allocations, I still get about 10 soft page faults per data transfer. I've tried every flag there is in CreateFileMapping() and CreateFileView() and it still happens. I'm beginning to wonder if it's just the way memory mapped files work. If anyone there knows the O/S implementation details behind memory mapped files I would appreciate comments on the following theory: If two processes share a memory mapped file and one process writes to it while another reads it, then the O/S marks the pages written to as invalid. When the other process goes to read the memory areas that now belong to invalidated pages, this causes a soft page fault (by design) and the O/S knows to reload the invalidated page. Also, the number of soft page faults is therefore directly proportional to the size of the data write. My experiments seem to bear out the above theory. When I share data I write one contiguous block of data. In other words, the entire shared memory area is overwritten each time. If I make the block bigger the number of soft page faults goes up correspondingly. So, if my theory is true, there is nothing I can do to eliminate the soft page faults short of not using memory mapped files because that is how they work (using soft page faults to maintain page consistency). What is ironic is that I chose to use a memory mapped file instead of a TCP socket connection because I thought it would be more efficient. Note, if the soft page faults are harmless please note that. I've heard that at some point if the number is excessive, the system's performance can be marred. If soft page faults intrinsically are not significantly harmful then if anyone has any guidelines as to what number per second is "excessive" I'd like to hear that. Thanks.

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  • PHP SOAP error: Method element needs to belong to the namespace

    - by kdm
    I'm unable to retrieve data from an XML document, any help is greatly appreciated. I'm using PHP 5.2.10 and the WSDL url is an internal link within my company. The following code produces an error. $url = "http://dta-info/IVR/IVRINFO?WSDL"; $params = array("zANI" => "12345"); try{ $client = new SoapClient($url, array( 'trace' => 1, 'connection_timeout' => 2, 'location' => $url ) ); }catch(SoapFault $fault){ echo "faultstring: {$fault->faultstring})\n"; } try{ $result = $client->GetIVRinfo($params); }catch(SoapFault $fault){ echo "(faultcode: {$fault->faultcode}, faultstring: {$fault->faultstring} )\n"; } (faultcode: SOAP-ENV:Client, faultstring: There should be no path or parameters after a SOAP vname. ) So i tried to use a non-wsdl mode but i receive a different error no matter how i try to format the params. $url = "http://dta-info/IVR/IVRINFO"; $params = array("zANI" => "12345"); try{ $client = new SoapClient(null, array( 'trace' => 1, 'connection_timeout' => 2, 'location' => $url, 'uri' => $uri, 'style' => SOAP_DOCUMENT, 'use' => SOAP_LITERAL, 'soap_version' => SOAP_2 ) ); }catch(SoapFault $fault){ echo "faultstring: {$fault->faultstring})\n"; } try{ $result = $client->GetIVRinfo($params); }catch(SoapFault $fault){ echo "(faultcode: {$fault->faultcode}, faultstring: {$fault->faultstring} )\n"; } (faultcode: SOAP-ENV:Client, faultstring: The method element needs to belong to the namespace 'http://GETIVRINFO/IVR/IVRINFO'. ) I have tested this WSDL with a tool called SoapUI and it returns the results with no errors. So it leads me to believe I'm not formatting the vars or headers correctly with PHP. I also tried passing in a xml fragment as the param but that returns the same error. What am i doing wrong?????? $params = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ivr="http://GETIVRINFO/IVR/IVRINFO"> <soapenv:Header/> <soapenv:Body> <ivr:GetIVRinfo> <!--Optional:--> <ivr:zANI>12345</ivr:zANI> </ivr:GetIVRinfo> </soapenv:Body> </soapenv:Envelope>'; Here is the WSDL document: <?xml version="1.0"?><wsdl:definitions name="IVR" targetNamespace="http://GETIVRINFO/IVR/IVRINFO" xmlns:tns="http://GETIVRINFO/IVR/IVRINFO" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:sql="http://schemas.microsoft.com/SQLServer/2001/12/SOAP" xmlns:sqltypes="http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types" xmlns:sqlmessage="http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlMessage" xmlns:sqlresultstream="http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlResultStream"> <wsdl:types><xsd:schema targetNamespace='http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types' elementFormDefault='qualified' attributeFormDefault='qualified'> <xsd:import namespace='http://www.w3.org/2001/XMLSchema'/> <xsd:simpleType name='nonNegativeInteger'> <xsd:restriction base='xsd:int'> <xsd:minInclusive value='0'/> </xsd:restriction> </xsd:simpleType> <xsd:attribute name='IsNested' type='xsd:boolean'/> <xsd:complexType name='SqlRowSet'> <xsd:sequence> <xsd:element ref='xsd:schema'/> <xsd:any/> </xsd:sequence> <xsd:attribute ref='sqltypes:IsNested'/> </xsd:complexType> <xsd:complexType name='SqlXml' mixed='true'> <xsd:sequence> <xsd:any/> </xsd:sequence> </xsd:complexType> <xsd:simpleType name='SqlResultCode'> <xsd:restriction base='xsd:int'> <xsd:minInclusive value='0'/> </xsd:restriction> </xsd:simpleType> </xsd:schema> <xsd:schema targetNamespace='http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlMessage' elementFormDefault='qualified' attributeFormDefault='qualified'> <xsd:import namespace='http://www.w3.org/2001/XMLSchema'/> <xsd:import namespace='http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types'/> <xsd:complexType name='SqlMessage'> <xsd:sequence minOccurs='1' maxOccurs='1'> <xsd:element name='Class' type='sqltypes:nonNegativeInteger'/> <xsd:element name='LineNumber' type='sqltypes:nonNegativeInteger'/> <xsd:element name='Message' type='xsd:string'/> <xsd:element name='Number' type='sqltypes:nonNegativeInteger'/> <xsd:element name='Procedure' type='xsd:string'/> <xsd:element name='Server' type='xsd:string'/> <xsd:element name='Source' type='xsd:string'/> <xsd:element name='State' type='sqltypes:nonNegativeInteger'/> </xsd:sequence> <xsd:attribute ref='sqltypes:IsNested'/> </xsd:complexType> </xsd:schema> <xsd:schema targetNamespace='http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlResultStream' elementFormDefault='qualified' attributeFormDefault='qualified'> <xsd:import namespace='http://www.w3.org/2001/XMLSchema'/> <xsd:import namespace='http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types'/> <xsd:import namespace='http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlMessage'/> <xsd:complexType name='SqlResultStream'> <xsd:choice minOccurs='1' maxOccurs='unbounded'> <xsd:element name='SqlRowSet' type='sqltypes:SqlRowSet'/> <xsd:element name='SqlXml' type='sqltypes:SqlXml'/> <xsd:element name='SqlMessage' type='sqlmessage:SqlMessage'/> <xsd:element name='SqlResultCode' type='sqltypes:SqlResultCode'/> </xsd:choice> </xsd:complexType> </xsd:schema> <xsd:schema targetNamespace="http://GETIVRINFO/IVR/IVRINFO" elementFormDefault="qualified" attributeFormDefault="qualified"> <xsd:import namespace="http://www.w3.org/2001/XMLSchema"/> <xsd:import namespace="http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types"/> <xsd:import namespace="http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlMessage"/> <xsd:import namespace="http://schemas.microsoft.com/SQLServer/2001/12/SOAP/types/SqlResultStream"/> <xsd:element name="GetIVRinfo"> <xsd:complexType> <xsd:sequence> <xsd:element minOccurs="0" maxOccurs="1" name="zANI" type="xsd:string" nillable="true"/> </xsd:sequence> </xsd:complexType> </xsd:element> <xsd:element name="GetIVRinfoResponse"> <xsd:complexType> <xsd:sequence> <xsd:element minOccurs="1" maxOccurs="1" name="GetIVRinfoResult" type="sqlresultstream:SqlResultStream"/> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:schema> </wsdl:types> <wsdl:message name="GetIVRinfoIn"> <wsdl:part name="parameters" element="tns:GetIVRinfo"/> </wsdl:message> <wsdl:message name="GetIVRinfoOut"> <wsdl:part name="parameters" element="tns:GetIVRinfoResponse"/> </wsdl:message> <wsdl:portType name="SXSPort"> <wsdl:operation name="GetIVRinfo"> <wsdl:input message="tns:GetIVRinfoIn"/> <wsdl:output message="tns:GetIVRinfoOut"/> </wsdl:operation> </wsdl:portType> <wsdl:binding name="SXSBinding" type="tns:SXSPort"> <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/> <wsdl:operation name="GetIVRinfo"> <soap:operation soapAction="http://GETIVRINFO/IVR/IVRINFO/GetIVRinfo" style="document"/> <wsdl:input> <soap:body use="literal"/> </wsdl:input> <wsdl:output> <soap:body use="literal"/> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:service name="IVR"> <wsdl:port name="SXSPort" binding="tns:SXSBinding"> <soap:address location="http://GETIVRINFO/IVR/IVRINFO"/> </wsdl:port> </wsdl:service> </wsdl:definitions>

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  • jquery slideToggle() and unknown height?

    - by GaVrA
    Hello! Im using jquery 1.3.2 and this is the code: <script type="text/javascript"> //<![CDATA[ jQuery(function(){ jQuery('.news_bullet a.show_preview').click(function() { jQuery(this).siblings('div').slideToggle('slow'); return false; }).toggle( function() { jQuery(this).css({ 'background-position' : '0 -18px' }); }, function() { jQuery(this).css({ 'background-position' : '0 0' }); }); }); //]]> </script> If you see here i have bunch of small green + which when you click some text is revealed and background-position is changed for that link so then it shows the other part of image, red -. So the problem i am having is that i dont know the height for those hidden elements, because it depends on how much text there is, so when i click on + and show them, animation is 'jumping'. One workaround that i found is to put fixed height and overflow:hidden to those hidden elements. You can see how much smoother animation is running in top left block(the one with 'Vesti iz sveta crtanog filma' at the top). All other blocks dont have fixed height, and animation there is 'jumping'. Atm that fixed height in top left block is 30px, but ofc some elements require more height and some require less, so that is not a good solution... :) So how to stop this animation from 'jumping' when there is no fixed height?

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  • How to specify selector when CAKeyframeAnimation is finished?

    - by darenchow
    I'm using a CAKeyframeAnimation to animate a view along a CGPath. When the animation is done, I'd like to be able to call some other method to perform another action. Is there a good way to do this? I've looked at using UIView's setAnimationDidStopSelector:, however from the docs this looks like it only applies when used within a UIView animation block (beginAnimations and commitAnimations). I also gave it a try just in case, but it doesn't seem to work. Here's some sample code (this is within a custom UIView sub-class method): // These have no effect since they're not in a UIView Animation Block [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)]; // Set up path movement CAKeyframeAnimation *pathAnimation = [CAKeyframeAnimation animationWithKeyPath:@"path"]; pathAnimation.calculationMode = kCAAnimationPaced; pathAnimation.fillMode = kCAFillModeForwards; pathAnimation.removedOnCompletion = NO; pathAnimation.duration = 1.0f; CGMutablePathRef path = CGPathCreateMutable(); CGPathMoveToPoint(path, NULL, self.center.x, self.center.y); // add all points to the path for (NSValue* value in myPoints) { CGPoint nextPoint = [value CGPointValue]; CGPathAddLineToPoint(path, NULL, nextPoint.x, nextPoint.y); } pathAnimation.path = path; CGPathRelease(path); [self.layer addAnimation:pathAnimation forKey:@"pathAnimation"]; A workaround I was considering that should work, but doesn't seem like the best way, is to use NSObject's performSelector:withObject:afterDelay:. As long as I set the delay equal to the duration of the animation, then it should be fine. Is there a better way? Thanks!

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  • Java invokeAndWait of C# Action Delegate

    - by ikurtz
    the issue i mentioned in this post is actually happening because of cross threading GUI issues (i hope). could you help me with Java version of action delegate please? in C# it is done as this inline: this.Invoke(new Action(delegate() {...})); how is this achived in Java? thank you. public class processChatMessage implements Observer { public void update(Observable o, Object obj) { System.out.println("class class class" + obj.getClass()); if (obj instanceof String){ String msg = (String)obj; formatChatHeader(chatHeader.Away, msg); jlStatusBar.setText("Message Received"); // Show chat form setVisibility(); } } } processChatMessage is invoked by a separate thread triggered by receiving new data from a remote node. and i think the error is being produced as it trying to update GUI controls. do you think this is the reason? i ask because im new to Java and C#, but this is what is going on i think. SOLUTION: public class processChatMessage implements Observer { public void update(Observable o, Object obj) { if (obj instanceof String){ final String msg = (String)obj; try { SwingUtilities.invokeAndWait(new Runnable( ) { public void run( ) { formatChatHeader(chatHeader.Away, msg); jlStatusBar.setText("Message Received"); setVisibility(); } }); } catch (InterruptedException e){ } catch (InvocationTargetException e){ } } } }

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  • how to read image uri in to byte conversion in android image upload in sdcard

    - by satyamurthy
    public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button b1 = (Button) findViewById(R.id.Button01); b1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub startActivityForResult(new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI), 1); } }); } public void onActivityResult(int requestCode,int resultCode,Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { Uri selectedImage = data.getData(); Cursor cur = PhotoImage.this.managedQuery(selectedImage, null, null, null, null); if(cur.moveToFirst()) { File Img = new File(selectedImage+inFileType); try { FileInputStream fis = new FileInputStream(Img); Bitmap bi = BitmapFactory.decodeStream(fis); ByteArrayOutputStream baos = new ByteArrayOutputStream(); bi.compress(Bitmap.CompressFormat.JPEG, 100, baos); byte[] data1 = baos.toByteArray(); for (int i = 0; i < data1.length; i++) { System.out.print(""+data1[i]); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } } this code not i am implementing file not found error please help some suggition

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  • How to implement RSA-CBC?(I have uploaded the request document)

    - by tq0fqeu
    I don't konw more about cipher, I just want to implement RSA-CBC which maybe mean that the result of RSA encrypt in CBC mode, and I have implemented RSA. any code languages will be ok, java will be appreciated thx I copy the request as follow(maybe has spelling wrong), but that's French I don't konw that: Pr´esentation du mini-projet Le but du mini-projet est d’impl´ementer une version ´el´ementaire du chi?rement d’un bloc par RSA et d’inclure cette primitive dans un systeme de chi?rement par bloc avec chaˆinage de blocs et IV (Initial Vector ) al´eatoire. Dans ce systeme, un texte clair (`a chi?rer) est d´ecompos´e en blocs de taille t (?x´ee par l’utilisa- teur), chaque bloc (clair) est chi?r´e par RSA en un bloc crypt´e de mˆeme taille, puis le cryptogramme associ´e au texte clair initial est obtenu en chaˆinant les blocs crypt´es par la m´ethode CBC (cipher- block chaining) d´ecrite dans le cours (voir poly “Block Ciphers”) Votre programme devra demander a l’utilisateur la taille t, puis, apres g´en´eration des cl´es publique et priv´ee, lui proposer de chi?rer ou d´echi?rer un (court) ?chier ASCII. Il est indispensable que votre programme soit au moins capable de traiter le cas (tres peu r´ealiste du point de vue de la s´ecurit´e) t = 32. Pour les traiter des blocs plus grands, il vous faudra impl´ementer des routines d’arithm´etique multi-pr´ecision ; pour cela, je vous conseille de faire appela des bibliotheques libres comme GMP (GNU Multiprecision Library). Pour la g´en´eration al´eatoire des nombres premiers p et q, vous pouvez ´egalement faire appela des bibliotheques sp´ecialis´ees,a condition de me donner toutes les pr´ecisions n´ecessaires. Vous devez m’envoyer (avant une date qui reste a ?xer)a mon adresse ´electronique ([email protected]) un courriel (sujet : [MI1-crypto] : devoir, corps du message : les noms des ´etudiants ayant travaill´e sur le mini-projet) auquel sera attach´e un dossier compress´e regroupant vos sources C ou Java comment´ees, votre programme ex´ecutable, et un ?chier texte ou PDF donnant toutes les pr´ecisions sur les biblioth`eques utilis´ees, vos choix algorithmiques et d’impl´ementation, et les raisons de ces choix (complexit´e algorithmique, robus- tesse, facilit´e d’impl´ementation, etc.). Vous pouvez travailler en binˆome ou en trinˆome, mais je serai nettement plus exigeant avec les trinˆomes I have uploaded the request at http://uploading.com/files/22emmm6b/enonce_projet.pdf/ thx

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  • What is the best way to parse python script file in C/C++ code

    - by alexpov
    I am embedding python in C/C++ program. What I am trying to do is to parse the python script file from the C/C++ program, break the file to "blocks" so that each "block" is an a valid command in python code. Each block I need to put into std::string. For example: #PythonScript.py import math print "Hello Python" i = 0; while (i < 10): print "i = " , i; i = i + 1; print "GoodBye Python" In this script are 5 different "blocks": the first one is "import math;" the second is "print "Hello Python;" the third is "i = 0;" and the fourth is while (i < 10):\n\tprint "i = " , i;\n\ti = i + 1; My knowledge in python is very basic and I am not familiar with the python code syntax. What is the best way to do this, is there any Python C/C++ API function that supports this? why i need it - for GUI purpose. My program , which is writen in C, uses python to make some calculations. I run from C code , using python C API , python script and what i need is a way to capture python's output in my program. I catch it and evrything is ok, the problem is when the script involves user input. What happens is that i capture python's output after the script is finished , therefore, when there is an input command in the script i get a black screen .... i need to get all the printings before the input command. The first solution i tried is to parss the script to valid commands and run each comand, one after the other , seperatly .... for this i need to pars the script and deside what is a command and what is not ... The question is : what is the best way to do this and if there is somthing that allready does ?

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  • Exclude css & image resources in web.xml Security Constraint

    - by Tiggles
    I am using JSF2.1 and Glassfish 3.1.2. I specify a security constraint to block everything: <security-constraint> <web-resource-collection> <web-resource-name>Secured Content</web-resource-name> <!-- Block all --> <url-pattern>/*</url-pattern> </web-resource-collection> <!-- only users with at least one of these roles are allowed to access the secured content --> <auth-constraint> <role-name>ADMINISTRATOR</role-name> </auth-constraint> </security-constraint> and have another to allow access a subset of pages and the resources: <security-constraint> <web-resource-collection> <web-resource-name>Open Content</web-resource-name> <!-- Allow subscribe --> <url-pattern>/subscribe/*</url-pattern> <url-pattern>/javax.faces.resource/*</url-pattern> </web-resource-collection> <!-- No Auth Contraint! --> </security-constraint> This works fine. However, is the following <url-pattern>/javax.faces.resource/*</url-pattern> the correct way to allow all resources? I only did this by looking at the url that Facelets injects into the xhtml. Is there security holes with this approach? Thanks.

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  • JSON.Net and Linq

    - by user1745143
    I'm a bit of a newbie when it comes to linq and I'm working on a site that parses a json feed using json.net. The problem that I'm having is that I need to be able to pull multiple fields from the json feed and use them for a foreach block. The documentation for json.net only shows how to pull just one field. I've done a few variations after checking out the linq documentation, but I've not found anything that works best. Here's what I've got so far: WebResponse objResponse; WebRequest objRequest = HttpWebRequest.Create(url); objResponse = objRequest.GetResponse(); using (StreamReader reader = new StreamReader(objResponse.GetResponseStream())) { string json = reader.ReadToEnd(); JObject rss = JObject.Parse(json); var postTitles = from p in rss["feedArray"].Children() select (string)p["item"], //These are the fields I need to also query //(string)p["title"], (string)p["message"]; //I've also tried this with console.write and labeling the field indicies for each pulled field foreach (var item in postTitles) { lbl_slides.Text += "<div class='slide'><div class='slide_inner'><div class='slide_box'><div class='slide_content'></div><!-- slide content --></div><!-- slide box --></div><div class='rotator_photo'><img src='" + item + "' alt='' /></div><!-- rotator photo --></div><!-- slide -->"; } } Has anyone seen how to pull multiple fields from a json feed and use them as part of a foreach block (or something similar?

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  • Synchronization of Nested Data Structures between Threads in Java

    - by Dominik
    I have a cache implementation like this: class X { private final Map<String, ConcurrentMap<String, String>> structure = new HashMap...(); public String getValue(String context, String id) { // just assume for this example that there will be always an innner map final ConcurrentMap<String, String> innerStructure = structure.get(context); String value = innerStructure.get(id); if(value == null) { synchronized(structure) { // can I be sure, that this inner map will represent the last updated // state from any thread? value = innerStructure.get(id); if(value == null) { value = getValueFromSomeSlowSource(id); innerStructure.put(id, value); } } } return value; } } Is this implementation thread-safe? Can I be sure to get the last updated state from any thread inside the synchronized block? Would this behaviour change if I use a java.util.concurrent.ReentrantLock instead of a synchronized block, like this: ... if(lock.tryLock(3, SECONDS)) { try { value = innerStructure.get(id); if(value == null) { value = getValueFromSomeSlowSource(id); innerStructure.put(id, value); } } finally { lock.unlock(); } } ... I know that final instance members are synchronized between threads, but is this also true for the objects held by these members? Maybe this is a dumb question, but I don't know how to test it to be sure, that it works on every OS and every architecture.

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  • HTML onmouseover doesn't work to show up text

    - by REALFREE
    I'm trying to show some information on a picture when onmouseover/onmouseout event occurs. What I want to achieve is something like this website does on top selling. My code is like this: <div class="container" onmouseover="$('#info').css('display','block');" onmouseout="$('#info').css('display','none');"> <img src=..."> <div id="info" style="display:none"> ... some text ... </div> </div> So div info block is initially hidden, but when mouse is on a picture I want the information to appear on corresponding picture (with tint background on the image to see text well). But somewhat it doesn't work. I appreciate any suggestion how to approach this problem. Edit: more precisely, the reason why I choose to use inline because I need to show/hide text corresponding to the image(contain unique div id)that user put their mouse on/out. That means I have many div container and each container has unique div id.

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  • Google App Engine: Unit testing concurrent access to memcache

    - by Phuong Nguyen de ManCity fan
    Would you guys show me a way to simulating concurrent access to memcache on Google App Engine? I'm trying with LocalServiceTestHelpers and threads but don't have any luck. Every time I try to access Memcache within a thread, then I get this error: ApiProxy$CallNotFoundException: The API package 'memcache' or call 'Increment()' was not found I guess that the testing library of GAE SDK tried to mimic the real environment and thus setup the environment for only one thread (the thread that running the test) which cannot be seen by other thread. Here is a piece of code that can reproduce the problem package org.seamoo.cache.memcacheImpl; import org.testng.Assert; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; import com.google.appengine.api.memcache.MemcacheService; import com.google.appengine.api.memcache.MemcacheServiceFactory; import com.google.appengine.tools.development.testing.LocalMemcacheServiceTestConfig; import com.google.appengine.tools.development.testing.LocalServiceTestHelper; public class MemcacheTest { LocalServiceTestHelper helper; public MemcacheTest() { LocalMemcacheServiceTestConfig memcacheConfig = new LocalMemcacheServiceTestConfig(); helper = new LocalServiceTestHelper(memcacheConfig); } /** * */ @BeforeMethod public void setUp() { helper.setUp(); } /** * @see LocalServiceTest#tearDown() */ @AfterMethod public void tearDown() { helper.tearDown(); } @Test public void memcacheConcurrentAccess() throws InterruptedException { final MemcacheService service = MemcacheServiceFactory.getMemcacheService(); Runnable runner = new Runnable() { @Override public void run() { // TODO Auto-generated method stub service.increment("test-key", 1L, 1L); try { Thread.sleep(200L); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } service.increment("test-key", 1L, 1L); } }; Thread t1 = new Thread(runner); Thread t2 = new Thread(runner); t1.start(); t2.start(); while (t1.isAlive()) { Thread.sleep(100L); } Assert.assertEquals((Long) (service.get("test-key")), new Long(4L)); } }

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  • Calling end invoke on an asynchronous call when an exception has fired in WCF.

    - by james.ingham
    Hey, I currently have an asynchronous call with a callback, which fires this method on completion: private void TestConnectionToServerCallback(IAsyncResult iar) { bool result; try { result = testConnectionDelegate.EndInvoke(iar); Console.WriteLine("Connection made!"); } catch (EndpointNotFoundException e) { Console.WriteLine("Server Timeout. Are you connected?"); result = false; } ... } With the EndpointNotFoundException firing when the server is down or no connection can be made. My question is this, if I want to recall the testConnectionDelegate with some kind of re-try button, must I first call testConnectionDelegate.EndInvoke where the exception is caught? When I do call end invoke in the catch, I get another exception on result = testConnectionDelegate.EndInvoke(iar); whenever I call this method for the second time. This is "CommunicationObjectFaultedException". I'm assuming this is because I didn't end it properly, which is what I think I have to do. Any help would be appreciated. Thanks - James

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  • Determining failing sectors on portable flash memory

    - by Faxwell Mingleton
    I'm trying to write a program that will detect signs of failure for portable flash memory devices (thumb drives, etc). I have seen tools in the past that are able to detect failing sectors and other kinds of trouble on conventional mechanical hard drives, but I fear that flash memory does not have the same kind of predictable low-level access to the hardware due to the internal workings of the storage. Things like wear-leveling and other block-remapping techniques (to skip over 'dead' sectors?) lead me to believe that determining if a flash drive is failing will be difficult at best, if not impossible (short of having constant read failures and device unmounts). Flash drives at their end-of-life should be easy to detect (constant CRC discrepancies during reads and all-out failure). But what about drives that might be failing early? Are there any tell-tale signs like slower throughput speeds that might indicate a flash drive is going to fail much sooner than normal? Along the lines of detecting potentially bad blocks, I had considered attempting random reads/writes to a file close to or exactly the size of the entire volume, but even then is it possible that the drive might report sizes under its maximum capacity to account for 'dead' blocks? In short, is there any way to circumvent or at least detect (algorithmically or otherwise) the use of block-remapping or other life extension techniques for flash memory? Let me end this question by expressing my uncertainty as to whether or not this belongs on serverfault.com . This is definitely a hardware-related question, but I also desire a software solution - preferably one that I can program myself. If this question is misplaced, I will be happy to migrate it to serverfault - but I do need a programming solution. Please let me know if you need clarification :) Thanks!

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  • Firefox drags div like it was an image, javascript event handlers possibly to blame

    - by user281434
    Hi, I'm using this HTML,CSS and Javascript code (in one document together if you want to test it out): <style type="text/css"> #slider_container { width: 200px; height: 30px; background-color: red; display:block; } #slider { width: 20px; height: 30px; background-color: blue; display:block; position:absolute; left:0; } </style> <script type="text/javascript" src="../../js/libs/jquery-1.4.2.min.js"></script> <script type="text/javascript"> $(document).ready(function() { $("#slider").mousedown(function() { $(document).mousemove(function(evnt) { $("#test").html("sliding"); }).mouseup(function() { $("#test").html("not sliding"); $(document).unbind("mousemove mouseup"); });}); }); </script> <div id="test">a</div> <div id="slider_container"> <div id="slider"></div> </div> Everything (surprisingly) works fine in IE, but firefox seems to totally clusterf*ck when this javascript is used. The first "slide" is okay, you drag, it says "sliding", you drop, it says "not sliding". On the second "slide" (or mousedown if you will), firefox suddenly thinks the div is an image or link and wants to drag it around. Screenshot of the dragging: http://i.imgur.com/nPJxZ.jpg Obviously the blue div half-positioned in the red div is the one being dragged. Windows does not capture the cursor when you take a screenshot, but it's a stop sign. Is there someway to prevent this default behaviour?

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  • Save as DialogBox to save textbox content to a newfile using asp.net

    - by user195114
    I want the users to type their text in the given textbox and on clicking on createNewFile Button, a SaveAs Dialogbox should popup and the users should browse through the location and save the file as desired. I have tried some thing but (1) the dialog box goes behind the application (2) when run, dialogbox opens 3 times, means it executes 3 times REPLY TO THE POST protected void btnNewFile_Click(object sender, EventArgs e) { StreamWriter sw = null; try { SaveFileDialog sdlg = new SaveFileDialog(); DialogResult result = sdlg.ShowDialog(); sdlg.InitialDirectory = @"C:\"; sdlg.AddExtension = true; sdlg.CheckPathExists = true; sdlg.CreatePrompt = false; sdlg.OverwritePrompt = true; sdlg.ValidateNames = true; sdlg.ShowHelp = true; sdlg.DefaultExt = "txt"; // sdlg.ShowDialog = Form.ActiveForm; string file = sdlg.FileName.ToString(); string data = txtNewFile.Text; if (sdlg.ShowDialog() == DialogResult.OK) { sw.WriteLine(txtNewFile.Text); sw.Close(); } if (sdlg.ShowDialog() == DialogResult.Cancel) { sw.Dispose(); } //Save(file, data); } catch { } finally { if (sw != null) { sw.Close(); } } } private void Save(string file, string data) { StreamWriter writer = new StreamWriter(file); SaveFileDialog sdlg1 = new SaveFileDialog(); try { if (sdlg1.ShowDialog() == DialogResult.OK) { writer.Write(data); writer.Close(); } else writer.Dispose(); } catch (Exception xp) { MessageBox.Show(xp.Message); } finally { if (writer != null) { writer.Close(); } } } I have tried this.

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  • Bypassing confirmation prompt of an external process

    - by Alidad
    How can I convert this Perl code to Groovy? How to bypass confirmation prompts of an external process? I am trying to convert a Perl script to Groovy. The program is loading/delete maestro (job scheduling) jobs automatically. The problem is the delete command will prompt for confirmation (Y/N) on every single job that it finds. I tried the process execute in groovy but will stop at the prompts. The Perl script is writing bunch of Ys to the stream and print it to the handler( if I understood it correctly) to avoid stopping. I am wondering how to do the same thing in Groovy ? Or any other approach to execute a command and somehow write Y on every confirmation prompt. Perl Script: $maestrostring=""; while ($x < 1500) { $maestrostring .= "y\n"; $x++; } # delete the jobs open(MAESTRO_CMD, "|ssh mserver /bin/composer delete job=pserver#APPA@") print MAESTRO_CMD $maestrostring; close(MAESTRO_CMD); This is my groovy code so far: def deleteMaestroJobs (){ ... def commandSched ="ssh $maestro_server /bin/composer delete sched=$primary_server#$app_acronym$app_level@" def commandJobs ="ssh $maestro_server /bin/composer delete job=$primary_server#$app_acronym$app_level@" try { executeCommand commandJobs } catch (Exception ex ){ throw new Exception("Error executing the Maestro Composer [DELETE]") } try { executeCommand commandSched } catch (Exception ex ){ throw new Exception("Error executing the Maestro Composer [DELETE]") } } def executeCommand(command){ def process = command.execute() process.withWriter { writer -> 1500.times {writer.println 'Y' } } process.consumeProcessOutput(System.out, System.err) process.waitFor() }

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  • How upload files to azure in background with Delphi and OmniThread?

    - by mamcx
    I have tried to upload +100 files to azure with Delphi. However, the calls block the main thread, so I want to do this with a async call or with a background thread. This is what I do now (like explained here): procedure TCloudManager.UploadTask(const input: TOmniValue; var output: TOmniValue); var FileTask:TFileTask; begin FileTask := input.AsRecord<TFileTask>; Upload(FileTask.BaseFolder, FileTask.LocalFile, FileTask.CloudFile); end; function TCloudManager.MassiveUpload(const BaseFolder: String; Files: TDictionary<String, String>): TStringList; var pipeline: IOmniPipeline; FileInfo : TPair<String,String>; FileTask:TFileTask; begin // set up pipeline pipeline := Parallel.Pipeline .Stage(UploadTask) .NumTasks(Environment.Process.Affinity.Count * 2) .Run; // insert URLs to be retrieved for FileInfo in Files do begin FileTask.LocalFile := FileInfo.Key; FileTask.CloudFile := FileInfo.Value; FileTask.BaseFolder := BaseFolder; pipeline.Input.Add(TOmniValue.FromRecord(FileTask)); end;//for pipeline.Input.CompleteAdding; // wait for pipeline to complete pipeline.WaitFor(INFINITE); end; However this block too (why? I don't understand).

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  • Producing Mini Dumps for _caught_ SEH exceptions in mixed code DLL

    - by Assaf Lavie
    I'm trying to use code similar to clrdump to create mini dumps in my managed process. This managed process invokes C++/CLI code which invokes some native C++ static lib code, wherein SEH exceptions may be thrown (e.g. the occasional access violation). C# WinForms -> C++/CLI DLL -> Static C++ Lib -> ACCESS VIOLATION Our policy is to produce mini dumps for all SEH exceptions (caught & uncaught) and then translate them to C++ exceptions to be handled by application code. This works for purely native processes just fine; but when the application is a C# application - not so much. The only way I see to produce dumps from SEH exceptions in a C# process is to not catch them - and then, as unhandled exceptions, use the Application.ThreadException handler to create a mini dump. The alternative is to let the CLR translate the SEH exception into a .Net exception and catch it (e.g. System.AccessViolationException) - but that would mean no dump is created, and information is lost (stack trace information in Exception isn't as rich as the mini dump). So how can I handle SEH exceptions by both creating a minidump and translating the exception into a .Net exception so that my application may try to recover?

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  • CFHost DNS Resolution - When is it OK to use synchronous API?

    - by Jasarien
    I went to the iPhone Developer Tech Talk a few months ago and asked one of the gurus there about the lack of NSHost on the iPhone. Some code I was porting to the iPhone made significant use of NSHost throughout its networking code. I was told that NSHost is on the iPhone, but its private. I was also told that NSHost is a synchronous API and that I shouldn't use it anyway. (If anyone could elaborate on why it shouldn't be used, as a bonus, that'd be great.) I can see the caveats of using synchronous API's on the main thread in that they'll block until complete - and that's never a good thing with network code because there are so many factors that could cause the API to block the thread for a significant amount of time. My solution was to write a wrapper around CFHost's asynchronous resolution functions. The result works quite well, and I'm considering releasing it into the public domain. But my question is this: Say my app only resolves a hostname once per run, during the connecting phase, and then cache's it for the rest of the session. During the time it is resolving, a modal screen is shown telling the user "Connecting" with a nice spinner. Does it really matter whether or not the resolution is asynchronous?? The user has to wait to connect anyway, and the resolution is only done on the first connection. Subsequent connections use the cached result of the resolution. When is it OK to be synchronous and when should things be asynchronous?

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