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  • Accessing PerSession service simultaneously in WCF using C#

    - by krishna555
    1.) I have a main method Processing, which takes string as an arguments and that string contains some x number of tasks. 2.) I have another method Status, which keeps track of first method by using two variables TotalTests and CurrentTest. which will be modified every time with in a loop in first method(Processing). 3.) When more than one client makes a call parallely to my web service to call the Processing method by passing a string, which has different tasks will take more time to process. so in the mean while clients will be using a second thread to call the Status method in the webservice to get the status of the first method. 4.) when point number 3 is being done all the clients are supposed to get the variables(TotalTests,CurrentTest) parallely with out being mixed up with other client requests. 5.) The code that i have provided below is getting mixed up variables results for all the clients when i make them as static. If i remove static for the variables then clients are just getting all 0's for these 2 variables and i am unable to fix it. Please take a look at the below code. [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)] public class Service1 : IService1 { public int TotalTests = 0; public int CurrentTest = 0; public string Processing(string OriginalXmlString) { XmlDocument XmlDoc = new XmlDocument(); XmlDoc.LoadXml(OriginalXmlString); this.TotalTests = XmlDoc.GetElementsByTagName("TestScenario").Count; //finding the count of total test scenarios in the given xml string this.CurrentTest = 0; while(i<10) { ++this.CurrentTest; i++; } } public string Status() { return (this.TotalTests + ";" + this.CurrentTest); } } server configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> client configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> Below mentioned is my client code class Program { static void Main(string[] args) { Program prog = new Program(); Thread JavaClientCallThread = new Thread(new ThreadStart(prog.ClientCallThreadRun)); Thread JavaStatusCallThread = new Thread(new ThreadStart(prog.StatusCallThreadRun)); JavaClientCallThread.Start(); JavaStatusCallThread.Start(); } public void ClientCallThreadRun() { XmlDocument doc = new XmlDocument(); doc.Load(@"D:\t72CalculateReasonableWithdrawal_Input.xml"); bool error = false; Service1Client Client = new Service1Client(); string temp = Client.Processing(doc.OuterXml, ref error); } public void StatusCallThreadRun() { int i = 0; Service1Client Client = new Service1Client(); string temp; while (i < 10) { temp = Client.Status(); Thread.Sleep(1500); Console.WriteLine("TotalTestScenarios;CurrentTestCase = {0}", temp); i++; } } } Can any one please help.

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  • NSStream sockets missing data

    - by Chris T.
    I am trying to pull some sample data from FreeDB as a proof of concept, but I am having a tough time retrieving all of the data off the incoming stream (I am only getting the last bits for the final query listed here (if handshakeCode = 3) I think this may be something with the threading on the main runloop, but I am not sure. Odd thing is when the buffer size is larger than 1-2 bytes (which works as expected), I seem to be losing access to the data programmatically (the totalOutput variable on the first set of data is incomplete). I set up a packet capture, and it looks like those 1024 bytes are coming across the wire, but the app just isn't working with it. It looks like the next event is coming through and basically taking over. I tried using an NSLock to no avail as well. If I drop the buffer size down to 1 or 2, things seem to be reading just fine. This is probably obvious to someone who does this all the time, but this is my first foray into this with something I am familiar with, technology wise in other languages / platforms. The following code will show you what is happening. Run with the buffer set to 1024, and you will see a short final string, but once you set it to 1, you will see the amount of data I was expecting (I was even expecting it to be split, so that's not a big worry) #import <Foundation/Foundation.h> #import <Cocoa/Cocoa.h> //STACK OVERFLOW CODE: @interface stackoverflow : NSObject <NSStreamDelegate> { NSInputStream *iStream; NSOutputStream *oStream; int handshakeCode; NSString *selectedDiscId; NSString *selectedGenre; } -(void)getMatchesFromFreeDB; -(void)sendToOutputStream:(NSString*)command; @end @implementation stackoverflow -(void)getMatchesFromFreeDB { NSHost *host = [NSHost hostWithName:@"freedb.freedb.org"]; [NSStream getStreamsToHost:host port:8880 inputStream:&iStream outputStream:&oStream]; [iStream retain]; [oStream retain]; [iStream setDelegate:self]; [oStream setDelegate:self]; [iStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [oStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [iStream open]; [oStream open]; handshakeCode = 0; //not done any processing } -(void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode { switch(eventCode) { case NSStreamEventOpenCompleted: { NSLog(@"Stream open completed"); break; } case NSStreamEventHasBytesAvailable: { NSLog(@"Stream has bytes available"); if (aStream == iStream) { NSMutableString *totalOutput = [NSMutableString stringWithString:@""]; //read data uint8_t buffer[1024]; int len; while ([iStream hasBytesAvailable]) { len = [iStream read:buffer maxLength:sizeof(buffer)]; if (len 0) { NSString *output = [[NSString alloc] initWithBytes:buffer length:len encoding:NSUTF8StringEncoding]; //this could have also been put into an NSData object if (nil != output) { //append to the total output [totalOutput appendString:output]; } } } NSLog(@"OUTPUT , %i:\n\n%@", [totalOutput lengthOfBytesUsingEncoding:NSUTF8StringEncoding], totalOutput); NSArray *outputComponents = [totalOutput componentsSeparatedByString:@" "]; //Attempt to get handshake code, since we haven't done it yet: if (handshakeCode == 1) { //we are just getting the sign-on banner: //let's move on: handshakeCode = 2; } else if (handshakeCode == 2) { handshakeCode = [[outputComponents objectAtIndex:0] intValue]; if (handshakeCode == 200) { NSLog(@"---Handshake OK %i", handshakeCode); NSMutableString *query = [NSMutableString stringWithString:@"cddb query f3114b11 17 225 19915 36489 54850 69425 87025 103948 123242 136075 152817 178335 192850 211677 235104 262090 284882 308658 4430\n"]; handshakeCode = 3; [self sendToOutputStream:query]; } } else if (handshakeCode == 3) { //now, we are reading out the matches: if ([[outputComponents objectAtIndex:0] intValue] == 200) //found exact match: { NSLog(@"Found exact match"); selectedGenre = [outputComponents objectAtIndex:1] ; selectedDiscId = [outputComponents objectAtIndex:2]; if (selectedGenre && selectedDiscId) { //send off the request to get the entry: NSString *query = [NSString stringWithFormat:@"cddb read %@ %@\n", selectedGenre, selectedDiscId]; [self sendToOutputStream:query]; handshakeCode = 4; } } } } break; } case NSStreamEventEndEncountered: { NSLog(@"Stream event end encountered"); break; } case NSStreamEventErrorOccurred: { NSLog(@"Stream error occurred"); break; } case NSStreamEventHasSpaceAvailable: { NSLog(@"Stream has space available"); if (aStream == oStream) { if (handshakeCode == 0) { handshakeCode = 1; [self sendToOutputStream:@"cddb hello stackoverflow localhost.localdomain test .01BETA\n"]; } } break; } } } -(void)sendToOutputStream:(NSString*)command { const uint8_t *rawCommand = (const uint8_t *)[command UTF8String]; [oStream write:rawCommand maxLength:strlen(rawCommand)]; NSLog(@"Sent command: %@",command); } @end int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; stackoverflow *test = [[stackoverflow alloc] init]; [test getMatchesFromFreeDB]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; [runLoop run]; [pool drain]; return 0; } Any help is much appreciated! Thanks

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  • having issue while making the client calls persession in c# wcf

    - by krishna555
    1.) I have a main method Processing, which takes string as an arguments and that string contains some x number of tasks. 2.) I have another method Status, which keeps track of first method by using two variables TotalTests and CurrentTest. which will be modified every time with in a loop in first method(Processing). 3.) When more than one client makes a call parallely to my web service to call the Processing method by passing a string, which has different tasks will take more time to process. so in the mean while clients will be using a second thread to call the Status method in the webservice to get the status of the first method. 4.) when point number 3 is being done all the clients are supposed to get the variables(TotalTests,CurrentTest) parallely with out being mixed up with other client requests. 5.) The code that i have provided below is getting mixed up variables results for all the clients when i make them as static. If i remove static for the variables then clients are just getting all 0's for these 2 variables and i am unable to fix it. Please take a look at the below code. [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)] public class Service1 : IService1 { public int TotalTests = 0; public int CurrentTest = 0; public string Processing(string OriginalXmlString) { XmlDocument XmlDoc = new XmlDocument(); XmlDoc.LoadXml(OriginalXmlString); this.TotalTests = XmlDoc.GetElementsByTagName("TestScenario").Count; //finding the count of total test scenarios in the given xml string this.CurrentTest = 0; while(i<10) { ++this.CurrentTest; i++; } } public string Status() { return (this.TotalTests + ";" + this.CurrentTest); } } server configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> client configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> Below mentioned is my client code class Program { static void Main(string[] args) { Program prog = new Program(); Thread JavaClientCallThread = new Thread(new ThreadStart(prog.ClientCallThreadRun)); Thread JavaStatusCallThread = new Thread(new ThreadStart(prog.StatusCallThreadRun)); JavaClientCallThread.Start(); JavaStatusCallThread.Start(); } public void ClientCallThreadRun() { XmlDocument doc = new XmlDocument(); doc.Load(@"D:\t72CalculateReasonableWithdrawal_Input.xml"); bool error = false; Service1Client Client = new Service1Client(); string temp = Client.Processing(doc.OuterXml, ref error); } public void StatusCallThreadRun() { int i = 0; Service1Client Client = new Service1Client(); string temp; while (i < 10) { temp = Client.Status(); Thread.Sleep(1500); Console.WriteLine("TotalTestScenarios;CurrentTestCase = {0}", temp); i++; } } } Can any one please help.

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  • Son of Suckerfish ie6 problem - right-most dropdown menu also appearing on left side of screen

    - by Kevin Burke
    I'm interning for an NGO in India and trying to fix their website, including updating their menu so it's not the last item on the page to load, and it's centered on the screen. Everything works well enough but when I try out my new menu in IE6, I get this weird error where the content below the menu is padded an extra 30px or so and the material in the right-most drop down appears on the far left of the screen, always visible. When I drop down the rightmost link ("Publications") the content appears both in the correct location and in the same spot on the far left of the screen, and changes color when I hover as well. It's tough to describe, so it would probably be best if you took a look: visit http://sevamandir.org/a30/index.htm in your Internet Explorer 6 browser to see for yourself. I really appreciate your help. Also I'm using a 1000px wide monitor, if there's more hijinks going on outside that space I'd like to know about that too. Here's the relevant code: in the html head: <script> sfHover = function() { var sfEls = document.getElementById("nav").getElementsByTagName("LI"); for (var i=0; i<sfEls.length; i++) { sfEls[i].onmouseover=function() { this.className+=" sfhover"; } sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(" sfhover\\b"), ""); } } } if (window.attachEvent) window.attachEvent("onload", sfHover); </script> text surrounding the menu - the menu is simply <ul id="nav"><li></li></ul> etc. <!--begin catchphrase--> <div style="float:left; height:27px; width:520px; margin:0px; font:16px Arial, Helvetica, sans-serif; font-weight:bold; color:#769841;"> Transforming lives through democratic &amp; participatory development </div> <?php include("menu.php"); ?> </div><!-- end header --> <!--begin main text div--> <div id="maincontent"> Relevant menu CSS: #nav, #nav ul { font:bold 11px Verdana, sans-serif; float: left; width: 980px; list-style: none; line-height: 1; background: white; font-weight: bold; padding: 0; border: solid #769841; border-width: 0; margin: 0 0 1em 0; } #nav a { display: block; width: 140px; /*this is the total width of the upper menu*/ w\idth: 120px; /*this is the width less horizontal padding */ padding: 5px 10px 5px 10px; /*horiz padding is the 2nd & 4th items here - goes Top Right Bottom Left */ color: #ffffff; background:#b6791e; text-decoration: none; } #nav a.daddy { background: url(rightarrow2.gif) center right no-repeat; } #nav li { float: left; padding: 0; width: 140px; /*this needs to be updated to match top #nav a */ background:#b6791e; } #nav li:hover, #nav li a:hover, #nav li:hover a { background:#769841; } #nav li:hover li a { background:#ffffff; color:#769841; } #nav li ul { position: absolute; left: -999em; height: auto; width: 14.4em; w\idth: 13.9em; font-weight: bold; border-width: 0.25em; /*green border around dropdown menu*/ margin: 0; } #nav li ul a { background:#ffffff; color:#769841; } #nav li li { padding-right: 1em; width: 13em; background:#ffffff; } #nav li ul a { width: 13em; w\idth: 9em; } #nav li ul ul { margin: -1.75em 0 0 14em; } #nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfhover ul ul, #nav li.sfhover ul ul ul { left: -999em; } #nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfhover ul, #nav li li.sfhover ul, #nav li li li.sfhover ul { left: auto; } #nav li:hover, #nav li.sfhover, { background: #769841; color:#ffe400; } #nav li a:hover, #nav li li a:hover, #nav li:hover li:hover, #nav li.sfhover a:hover { background: #769841; color:#ffe400; }

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  • Vertical Scroll not working, are the guides but the screen does not scroll.

    - by Leandro
    package com.lcardenas.infoberry; import net.rim.device.api.system.DeviceInfo; import net.rim.device.api.system.GPRSInfo; import net.rim.device.api.system.Memory; import net.rim.device.api.ui.MenuItem; import net.rim.device.api.ui.component.Dialog; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.component.Menu; import net.rim.device.api.ui.component.SeparatorField; import net.rim.device.api.ui.container.MainScreen; import net.rim.device.api.ui.container.VerticalFieldManager; import net.rim.device.api.ui.decor.Background; import net.rim.device.api.ui.decor.BackgroundFactory; public class vtnprincipal extends MainScreen { //llamamos a la clase principal private InfoBerry padre; //variables para el menu private MenuItem mnubateria; private MenuItem mnuestado; private MenuItem mnuacerca; public vtnprincipal(InfoBerry padre) { super(); this.padre = padre; } public void incventana(){ VerticalFieldManager _ventana = new VerticalFieldManager(VerticalFieldManager.VERTICAL_SCROLL | VerticalFieldManager.VERTICAL_SCROLLBAR); double tmemoria =((DeviceInfo.getTotalFlashSize()/1024)/1024.00); double fmemoria = ((Memory.getFlashFree()/1024)/1024.00); Background cyan = BackgroundFactory.createSolidBackground(0x00E0FFFF); Background gris = BackgroundFactory.createSolidBackground(0x00DCDCDC ); //Borramos todos de la pantalla this.deleteAll(); //llamamos al menu incMenu(); //DIBUJAMOS LA VENTANA try{ LabelField title = new LabelField("Info Berry", LabelField.FIELD_HCENTER | LabelField.USE_ALL_HEIGHT ); setTitle(title); _ventana.add(new LabelField("Información del Dispositivo", LabelField.FIELD_HCENTER |LabelField.RIGHT | LabelField.USE_ALL_HEIGHT | LabelField.NON_FOCUSABLE )); _ventana.add(new SeparatorField()); _ventana.add(new SeparatorField()); txthorizontal modelo = new txthorizontal("Modelo:", DeviceInfo.getDeviceName()); modelo.setBackground(gris); _ventana.add(modelo); txthorizontal pin = new txthorizontal("PIN:" , Integer.toHexString(DeviceInfo.getDeviceId()).toUpperCase()); pin.setBackground(cyan); _ventana.add(pin); txthorizontal imeid = new txthorizontal("IMEID:" , GPRSInfo.imeiToString(GPRSInfo.getIMEI())); imeid.setBackground(gris); _ventana.add(imeid); txthorizontal version= new txthorizontal("SO Versión:" , DeviceInfo.getSoftwareVersion()); version.setBackground(cyan); _ventana.add(version); txthorizontal plataforma= new txthorizontal("SO Plataforma:" , DeviceInfo.getPlatformVersion()); plataforma.setBackground(gris); _ventana.add(plataforma); txthorizontal numero= new txthorizontal("Numero Telefonico: " , "Hay que firmar"); numero.setBackground(cyan); _ventana.add(numero); _ventana.add(new SeparatorField()); _ventana.add(new SeparatorField()); _ventana.add(new LabelField("Memoria", LabelField.FIELD_HCENTER | LabelField.USE_ALL_HEIGHT | LabelField.NON_FOCUSABLE)); _ventana.add(new SeparatorField()); txthorizontal totalm= new txthorizontal("Memoria app Total:" , mmemoria(tmemoria) + " Mb"); totalm.setBackground(gris); _ventana.add(totalm); txthorizontal disponiblem= new txthorizontal("Memoria app Disponible:" , mmemoria(fmemoria) + " Mb"); disponiblem.setBackground(cyan); _ventana.add(disponiblem); ///txthorizontal estadoram = new txthorizontal("Memoria RAM:" , mmemoria(prueba) + " Mb"); //estadoram.setBackground(gris); //add(estadoram); _ventana.add(new SeparatorField()); _ventana.add(new SeparatorField()); this.add(_ventana); }catch(Exception e){ Dialog.alert("Excepción en clase vtnprincipal: " + e.toString()); } } //DIBUJAMOS EL MENU private void incMenu() { MenuItem.separator(30); mnubateria = new MenuItem("Bateria",40, 10) { public void run() { bateria(); } }; mnuestado = new MenuItem("Estado de Red", 50, 10) { public void run() { estado(); } }; mnuacerca = new MenuItem("Acerca de..", 60, 10) { public void run() { acerca(); } }; MenuItem.separator(70); }; // public void makeMenu(Menu menu, int instance) { if (!menu.isDisplayed()) { menu.deleteAll(); menu.add(MenuItem.separator(30)); menu.add(mnubateria); menu.add(mnuestado); menu.add(mnuacerca); menu.add(MenuItem.separator(60)); } } public void bateria(){ padre.vtnbateria.incventana(); padre.pushScreen(padre.vtnbateria); } public void estado(){ padre.vtnestado.incventana(); padre.pushScreen(padre.vtnestado); } public void acerca(){ padre.vtnacerca.incventana(); padre.pushScreen(padre.vtnacerca); } public boolean onClose(){ Dialog.alert("Hasta Luego"); System.exit(0); return true; } public double mmemoria(double x) { if ( x > 0 ) return Math.floor(x * 100) / 100; else return Math.ceil(x * 100) / 100; } }

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  • Possible memory leak problem

    - by MaiTiano
    I write two pieces of c programs like following, during memcheck process using Valgrind, a lot of mem leak information is given. int GetMemory(int framewidth, int frameheight, int SR/*, int blocksize*//*,int ALL_REF_NUM*/) { //int i,j; int memory_size = 0; //int refnum = ALL_REF_NUM; int input_search_range = SR; memory_size += get_mem2D(&curFrameY, frameheight, framewidth); memory_size += get_mem2D(&curFrameU, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&curFrameV, frameheight>>1, framewidth>>1); memory_size += get_mem3D(&prevFrameY, refnum, frameheight, framewidth);// to allocate reference frame buffer accoding to the reference frame number memory_size += get_mem3D(&prevFrameU, refnum, frameheight>>1, framewidth>>1); memory_size += get_mem3D(&prevFrameV, refnum, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&mpFrameY, frameheight, framewidth); memory_size += get_mem2D(&mpFrameU, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&mpFrameV, frameheight>>1, framewidth>>1); memory_size += get_mem2D(&searchwindow, input_search_range*2 + blocksize, input_search_range*2 + blocksize);// to allocate search window according to the searchrange /*memory_size +=*/ get_mem1D(/*&SAD_cost, height, width*/); // memory_size += get_mem2D(&searchwindow, 80, 80);// if searchrange is 32, then only 32+1+32+15 pixels is needed in each row and col, therefore the range of // search window is enough to be set to 80 ! memory_size += get_mem2Dint(&all_mv, height/blocksize, width/blocksize); return 0; } void FreeMemory(int refno) { free_mem2D(curFrameY); free_mem2D(curFrameU); free_mem2D(curFrameV); free_mem3D(prevFrameY,refno); free_mem3D(prevFrameU,refno); free_mem3D(prevFrameV,refno); free_mem2D(mpFrameY); free_mem2D(mpFrameU); free_mem2D(mpFrameV); free_mem2D(searchwindow); free_mem1D(); free_mem2Dint(all_mv); } void free_mem1D() { free(SAD_cost); } Now I hope to make sure where are the possible problems in my program? Here I may post some valgrind information to let you know about the actual error information. ==29105== by 0x804A906: main (me_search.c:1480) ==29105== ==29105== ==29105== HEAP SUMMARY: ==29105== in use at exit: 124,088 bytes in 18 blocks ==29105== total heap usage: 37 allocs, 21 frees, 749,276 bytes allocated ==29105== ==29105== 272 bytes in 1 blocks are still reachable in loss record 1 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804885E: GetMemory (me_search.c:117) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 352 bytes in 1 blocks are still reachable in loss record 2 of 18 ==29105== at 0x4024F20: malloc (vg_replace_malloc.c:236) ==29105== by 0x409537E: __fopen_internal (iofopen.c:76) ==29105== by 0x409544B: fopen@@GLIBC_2.1 (iofopen.c:107) ==29105== by 0x804A660: main (me_search.c:1439) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 3 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048724: GetMemory (me_search.c:106) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 4 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048747: GetMemory (me_search.c:107) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 5 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048809: GetMemory (me_search.c:114) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are still reachable in loss record 6 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804882C: GetMemory (me_search.c:115) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are definitely lost in loss record 7 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804A4F8: get_mem3D (me_search.c:1393) ==29105== by 0x804879B: GetMemory (me_search.c:110) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 584 bytes in 1 blocks are definitely lost in loss record 8 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804A4F8: get_mem3D (me_search.c:1393) ==29105== by 0x80487C9: GetMemory (me_search.c:111) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 1,168 bytes in 1 blocks are still reachable in loss record 9 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x8048701: GetMemory (me_search.c:105) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 1,168 bytes in 1 blocks are still reachable in loss record 10 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x80487E6: GetMemory (me_search.c:113) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 1,168 bytes in 1 blocks are definitely lost in loss record 11 of 18 ==29105== at 0x402425F: calloc (vg_replace_malloc.c:467) ==29105== by 0x804A296: get_mem2D (me_search.c:1315) ==29105== by 0x804A4F8: get_mem3D (me_search.c:1393) ==29105== by 0x804876D: GetMemory (me_search.c:109) ==29105== by 0x804A757: main (me_search.c:1456) ==29105== ==29105== 6,336 bytes in 1 blocks are definitely lost in loss record 12 of 18 ==29105== at 0x4024F20: malloc (vg_replace_malloc.c:236) ==29105== by 0x804A25C: get_mem1D (me_search.c:1295) ==29105== by 0x8048866: GetMemory (me_search.c:119) ==29105== by 0x804A757: main (me_search.c:1456)

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  • PHP mtChart (new pChart): how do i control the angle of x-axis labels?

    - by gsquare567
    i am trying to graph the results of a survey, where the question is multiple choice. eg. How would you describe this website? format: option | number of times selected | percentage of users who selected that option Informative 1 50% All of the above 1 50% Interesting 0 0% Intelligent 0 0% Cool 0 0% Incredible 0 0% Sleek 0 0% Amazing the graph is a bar graph, where each bar represents one of those options, and the height of the bar depends on the number of times selected. however, the labels are slanted at a 45 degree angle and are barely readable! here is my code: <?php require_once ("includes/common.php"); require_once ("graph/mtChart.min.php"); // type must be specified $type = $_GET['type']; if($type == "surveys_report_MC_or_CB") { // PARAMS $surveyID = $_GET['surveyID']; $questionID = $_GET['questionID']; // END PARAMS $question = SurveyQuestions::getSingle($questionID); $answers = SurveyAnswers::getAll($questionID); $options = SurveyQuestionOptions::getAll($question[SurveyQuestions::surveyQuestionID]); $others = SurveyAnswers::setOptionCounts($options, $answers); $printedOthers = false; // set graph $values = array(); $axisLabels = array(); foreach($options as $option) { $values[$option[SurveyQuestionOptions::optionText]] = $option['count']; $axisLabels[] = $option[SurveyQuestionOptions::optionText]; } $graphs = array(); $graphs[0] = $values; $xName = "Option"; $yName = "Number of Times Selected"; $graphTitle = $question[SurveyQuestions::question]; $series = array("Total"); $showLegend = false; $tall = false; } drawGraph($graphs, $axisLabels, $xName, $yName, $graphTitle, $series, $showLegend, $tall); function drawGraph($graphs, $axisLabels, $xName, $yName, $graphTitle, $series, $showLegend, $tall) { $Graph = ($tall) ? new mtChart(575,375) : new mtChart(575,275); // Dataset definition $avg = 0; $i = 0; foreach ($graphs as $key => $value) { $Graph->AddPoint($value,"series" . $key); $Graph->SetSerieName($series[$key],"series" . $key); // Get average $avg += array_sum($value); $size = sizeof($value); $i += $size; // Calculate x-axis tick interval $step = ceil($size / 25); } $Graph->AddPoint($axisLabels,"XLabel"); $Graph->AddAllSeries(); $Graph->RemoveSerie("XLabel"); $Graph->SetAbsciseLabelSerie("XLabel"); $Graph->SetXAxisName($xName); $Graph->SetYAxisName($yName); // Get from cache if it exists $Graph->enableCaching(NULL, 'graph/cache/'); $Graph->GetFromCache(); // Initialize the graph $Graph->setInterval($step); $Graph->setFontProperties("graph/tahoma.ttf",8); ($showLegend) ? $Graph->setGraphArea(45,30,475,200) : $Graph->setGraphArea(75,30,505,200); $Graph->drawGraphArea(255,255,255,TRUE); $Graph->drawScale(SCALE_START0,100,100,100,TRUE,55,1,TRUE); $Graph->drawGrid(4,TRUE,230,230,230,50); // Draw the 0 line $Graph->setFontProperties("graph/tahoma.ttf",6); $Graph->drawTreshold(0,143,55,72,TRUE,TRUE); // Draw the bar graph $Graph->drawBarGraph(); // Draw average line $Graph->drawTreshold($avg/$i, 0, 0, 0, FALSE, FALSE, 5); // Finish the graph $Graph->setFontProperties("graph/tahoma.ttf",8); if ($showLegend) { $Graph->drawLegend(482,30,255,255,255,255,255,255,100,100,100); } $Graph->setFontProperties("graph/tahoma.ttf",10); $Graph->drawTitle(0,22,$graphTitle,100,100,100,555); // Draw Graph $Graph->Stroke(); } and here is where i use it on the page: <div class="graph_container"> <img src="drawGraph.php?type=surveys_report_MC_or_CB&surveyID=<?php echo $survey[Surveys::surveyID] ?>&questionID=<?php echo $question[SurveyQuestions::surveyQuestionID] ?>" /> is there a setting i can apply to the graph which will make the text look nicer, or at least let me set the angle to 90 degrees so people can read it if they cock their head to the left? thanks! btw, mtchart is located here: http://code.google.com/p/mtchart/ and pchart (the original, which has mainly the same code) is here: http://pchart.sourceforge.net/documentation.php

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  • Very simple, terse and easy GUI programming “frameworks”

    - by jetxee
    Please list GUI programming libraries, toolkits, frameworks which allow to write GUI apps quickly. I mean in such a way, that GUI is described entirely in a human-readable (and human-writable) plain text file (code) code is terse (1 or 2 lines of code per widget/event pair), suitable for scripting structure and operation of the GUI is evident from the code (nesting of widgets and flow of events) details about how to build the GUI are hidden (things like mainloop, attaching event listeners, etc.) auto-layouts are supported (vboxes, hboxes, etc.) As answers suggest, this may be defined as declarative GUI programming, but it is not necessarily such. Any approach is OK if it works, is easy to use and terse. There are some GUI libraries/toolkits like this. They are listed below. Please extend the list if you see a qualifying toolkit missing. Indicate if the project is crossplatform, mature, active, and give an example if possible. Please use this wiki to discuss only Open Source projects. This is the list so far (in alphabetical order): Fudgets Fudgets is a Haskell library. Platform: Unix. Status: Experimental, but still maintained. An example: import Fudgets main = fudlogue (shellF "Hello" (labelF "Hello, world!" >+< quitButtonF)) GNUstep Renaissance Renaissance allows to describe GUI in simple XML. Platforms: OSX/GNUstep. Status: part of GNUstep. An example below: <window title="Example"> <vbox> <label font="big"> Click the button below to quit the application </label> <button title="Quit" action="terminate:"/> </vbox> </window> HTML HTML-based GUI (HTML + JS). Crossplatform, mature. Can be used entirely on the client side. Looking for a nice “helloworld” example. JavaFX JavaFX is usable for standalone (desktop) apps as well as for web applications. Not completely crossplatform, not yet completely open source. Status: 1.0 release. An example: Frame { content: Button { text: "Press Me" action: operation() { System.out.println("You pressed me"); } } visible: true } Screenshot is needed. Phooey Phooey is another Haskell library. Crossplatform (wxWidgets), HTML+JS backend planned. Mature and active. An example (a little more than a helloworld): ui1 :: UI () ui1 = title "Shopping List" $ do a <- title "apples" $ islider (0,10) 3 b <- title "bananas" $ islider (0,10) 7 title "total" $ showDisplay (liftA2 (+) a b) PythonCard PythonCard describes GUI in a Python dictionary. Crossplatform (wxWidgets). Some apps use it, but the project seems stalled. There is an active fork. I skip PythonCard example because it is too verbose for the contest. Shoes Shoes for Ruby. Platforms: Win/OSX/GTK+. Status: Young but active. A minimal app looks like this: Shoes.app { @push = button "Push me" @note = para "Nothing pushed so far" @push.click { @note.replace "Aha! Click!" } } Tcl/Tk Tcl/Tk. Crossplatform (its own widget set). Mature (probably even dated) and active. An example: #!/usr/bin/env wish button .hello -text "Hello, World!" -command { exit } pack .hello tkwait window . tekUI tekUI for Lua (and C). Platforms: X11, DirectFB. Status: Alpha (usable, but API still evolves). An example: #/usr/bin/env lua ui = require "tek.ui" ui.Application:new { Children = { ui.Window:new { Title = "Hello", Children = { ui.Text:new { Text = "_Hello, World!", Style = "button", Mode = "button", }, }, }, }, }:run() Treethon Treethon for Python. It describes GUI in a YAML file (Python in a YAML tree). Platform: GTK+. Status: work in proress. A simple app looks like this: _import: gtk view: gtk.Window() add: - view: gtk.Button('Hello World') on clicked: print view.get_label() Yet unnamed Python library by Richard Jones: This one is not released yet. The idea is to use Python context managers (with keyword) to structure GUI code. See Richard Jones' blog for details. with gui.vertical: text = gui.label('hello!') items = gui.selection(['one', 'two', 'three']) with gui.button('click me!'): def on_click(): text.value = items.value text.foreground = red XUL XUL + Javascript may be used to create stand-alone desktop apps with XULRunner as well as Mozilla extensions. Mature, open source, crossplatform. <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window id="main" title="My App" width="300" height="300" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <caption label="Hello World"/> </window> Thank your for contributions!

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  • Can't get my head around background workers in .NET

    - by Connel
    I have wrote an application that syncs two folders together. The problem with the program is that it stops responding whilst copying files. A quick search of stack-overflow told me I need to use something called a background worker. I have read a few pages on the net about this but find it really hard to understand as I'm pretty new to programming. Below is the code for my application - how can I simply put all of the File.Copy(....) commands into their own background worker (if that's even how it works)? Below is the code for the button click event that runs the sub procedure and the sub procedure I wish to use a background worker on all the File.Copy lines. Button event: protected virtual void OnBtnSyncClicked (object sender, System.EventArgs e) { //sets running boolean to true booRunning=true; //sets progress bar to 0 prgProgressBar.Fraction = 0; //resets values used by progressbar dblCurrentStatus = 0; dblFolderSize = 0; //tests if user has entered the same folder for both target and destination if (fchDestination.CurrentFolder == fchTarget.CurrentFolder) { //creates message box MessageDialog msdSame = new MessageDialog(this, DialogFlags.Modal, MessageType.Error, ButtonsType.Close, "You cannot sync two folders that are the same"); //sets message box title msdSame.Title="Error"; //sets respone type ResponseType response = (ResponseType) msdSame.Run(); //if user clicks on close button or closes window then close message box if (response == ResponseType.Close || response == ResponseType.DeleteEvent) { msdSame.Destroy(); } return; } //tests if user has entered a target folder that is an extension of the destination folder // or if user has entered a desatination folder that is an extension of the target folder if (fchTarget.CurrentFolder.StartsWith(fchDestination.CurrentFolder) || fchDestination.CurrentFolder.StartsWith(fchTarget.CurrentFolder)) { //creates message box MessageDialog msdContains = new MessageDialog(this, DialogFlags.Modal, MessageType.Error, ButtonsType.Close, "You cannot sync a folder with one of its parent folders"); //sets message box title msdContains.Title="Error"; //sets respone type and runs message box ResponseType response = (ResponseType) msdContains.Run(); //if user clicks on close button or closes window then close message box if (response == ResponseType.Close || response == ResponseType.DeleteEvent) { msdContains.Destroy(); } return; } //gets folder size of target folder FileSizeOfTarget(fchTarget.CurrentFolder); //gets folder size of destination folder FileSizeOfDestination(fchDestination.CurrentFolder); //runs SyncTarget procedure SyncTarget(fchTarget.CurrentFolder); //runs SyncDestination procedure SyncDestination(fchDestination.CurrentFolder); //informs user process is complete prgProgressBar.Text = "Finished"; //sets running bool to false booRunning = false; } Sync sub-procedure: protected void SyncTarget (string strCurrentDirectory) { //string array of all the directories in directory string[] staAllDirectories = Directory.GetDirectories(strCurrentDirectory); //string array of all the files in directory string[] staAllFiles = Directory.GetFiles(strCurrentDirectory); //loop over each file in directory foreach (string strFile in staAllFiles) { //string of just the file's name and not its path string strFileName = System.IO.Path.GetFileName(strFile); //string containing directory in target folder string strDirectoryInsideTarget = System.IO.Path.GetDirectoryName(strFile).Substring(fchTarget.CurrentFolder.Length); //inform user as to what file is being copied prgProgressBar.Text="Syncing " + strFile; //tests if file does not exist in destination folder if (!File.Exists(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName)) { //if file does not exist copy it to destination folder, the true below means overwrite if file already exists File.Copy (strFile, fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName, true); } //tests if file does exist in destination folder if (File.Exists(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName)) { //long (number) that contains date of last write time of target file long lngTargetFileDate = File.GetLastWriteTime(strFile).ToFileTime(); //long (number) that contains date of last write time of destination file long lngDestinationFileDate = File.GetLastWriteTime(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName).ToFileTime(); //tests if target file is newer than destination file if (lngTargetFileDate > lngDestinationFileDate) { //if it is newer then copy file from target folder to destination folder File.Copy (strFile, fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName, true); } } //gets current file size FileInfo FileSize = new FileInfo(strFile); //sets file's filesize to dblCurrentStatus and adds it to current total of files dblCurrentStatus = dblCurrentStatus + FileSize.Length; double dblPercentage = dblCurrentStatus/dblFolderSize; prgProgressBar.Fraction = dblPercentage; } //loop over each folder in target folder foreach (string strDirectory in staAllDirectories) { //string containing directories inside target folder but not any higher directories string strDirectoryInsideTarget = strDirectory.Substring(fchTarget.CurrentFolder.Length); //tests if directory does not exist inside destination folder if (!Directory.Exists(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget)) { //it directory does not exisit create it Directory.CreateDirectory(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget); } //run sync on all files in directory SyncTarget(strDirectory); } } Any help will be greatly appreciated as after this the program will pretty much be finished :D

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  • Can't get my head arround background workers in c#

    - by Connel
    I have wrote an application that syncs two folders together. The problem with the program is that it stops responding whilst copying files. A quick search of stack-overflow told me I need to use something called a background worker. I have read a few pages on the net about this but find it really hard to understand as I'm pretty new to programming. Below is the code for my application - how can I simply put all of the File.Copy(....) commands into their own background worker (if that's even how it works)? Below is the code for the button click event that runs the sub procedure and the sub procedure I wish to use a background worker on all the File.Copy lines. Button event: protected virtual void OnBtnSyncClicked (object sender, System.EventArgs e) { //sets running boolean to true booRunning=true; //sets progress bar to 0 prgProgressBar.Fraction = 0; //resets values used by progressbar dblCurrentStatus = 0; dblFolderSize = 0; //tests if user has entered the same folder for both target and destination if (fchDestination.CurrentFolder == fchTarget.CurrentFolder) { //creates message box MessageDialog msdSame = new MessageDialog(this, DialogFlags.Modal, MessageType.Error, ButtonsType.Close, "You cannot sync two folders that are the same"); //sets message box title msdSame.Title="Error"; //sets respone type ResponseType response = (ResponseType) msdSame.Run(); //if user clicks on close button or closes window then close message box if (response == ResponseType.Close || response == ResponseType.DeleteEvent) { msdSame.Destroy(); } return; } //tests if user has entered a target folder that is an extension of the destination folder // or if user has entered a desatination folder that is an extension of the target folder if (fchTarget.CurrentFolder.StartsWith(fchDestination.CurrentFolder) || fchDestination.CurrentFolder.StartsWith(fchTarget.CurrentFolder)) { //creates message box MessageDialog msdContains = new MessageDialog(this, DialogFlags.Modal, MessageType.Error, ButtonsType.Close, "You cannot sync a folder with one of its parent folders"); //sets message box title msdContains.Title="Error"; //sets respone type and runs message box ResponseType response = (ResponseType) msdContains.Run(); //if user clicks on close button or closes window then close message box if (response == ResponseType.Close || response == ResponseType.DeleteEvent) { msdContains.Destroy(); } return; } //gets folder size of target folder FileSizeOfTarget(fchTarget.CurrentFolder); //gets folder size of destination folder FileSizeOfDestination(fchDestination.CurrentFolder); //runs SyncTarget procedure SyncTarget(fchTarget.CurrentFolder); //runs SyncDestination procedure SyncDestination(fchDestination.CurrentFolder); //informs user process is complete prgProgressBar.Text = "Finished"; //sets running bool to false booRunning = false; } Sync sub-procedure: protected void SyncTarget (string strCurrentDirectory) { //string array of all the directories in directory string[] staAllDirectories = Directory.GetDirectories(strCurrentDirectory); //string array of all the files in directory string[] staAllFiles = Directory.GetFiles(strCurrentDirectory); //loop over each file in directory foreach (string strFile in staAllFiles) { //string of just the file's name and not its path string strFileName = System.IO.Path.GetFileName(strFile); //string containing directory in target folder string strDirectoryInsideTarget = System.IO.Path.GetDirectoryName(strFile).Substring(fchTarget.CurrentFolder.Length); //inform user as to what file is being copied prgProgressBar.Text="Syncing " + strFile; //tests if file does not exist in destination folder if (!File.Exists(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName)) { //if file does not exist copy it to destination folder, the true below means overwrite if file already exists File.Copy (strFile, fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName, true); } //tests if file does exist in destination folder if (File.Exists(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName)) { //long (number) that contains date of last write time of target file long lngTargetFileDate = File.GetLastWriteTime(strFile).ToFileTime(); //long (number) that contains date of last write time of destination file long lngDestinationFileDate = File.GetLastWriteTime(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName).ToFileTime(); //tests if target file is newer than destination file if (lngTargetFileDate > lngDestinationFileDate) { //if it is newer then copy file from target folder to destination folder File.Copy (strFile, fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget + "/" + strFileName, true); } } //gets current file size FileInfo FileSize = new FileInfo(strFile); //sets file's filesize to dblCurrentStatus and adds it to current total of files dblCurrentStatus = dblCurrentStatus + FileSize.Length; double dblPercentage = dblCurrentStatus/dblFolderSize; prgProgressBar.Fraction = dblPercentage; } //loop over each folder in target folder foreach (string strDirectory in staAllDirectories) { //string containing directories inside target folder but not any higher directories string strDirectoryInsideTarget = strDirectory.Substring(fchTarget.CurrentFolder.Length); //tests if directory does not exist inside destination folder if (!Directory.Exists(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget)) { //it directory does not exisit create it Directory.CreateDirectory(fchDestination.CurrentFolder + "/" + strDirectoryInsideTarget); } //run sync on all files in directory SyncTarget(strDirectory); } } Any help will be greatly appreciated as after this the program will pretty much be finished :D

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  • python- scipy optimization

    - by pear
    In scipy fmin_slsqp (Sequential Least Squares Quadratic Programming), I tried reading the code 'slsqp.py' provided with the scipy package, to find what are the criteria to get the exit_modes 0? I cannot find which statements in the code produce this exit mode? Please help me 'slsqp.py' code as follows, exit_modes = { -1 : "Gradient evaluation required (g & a)", 0 : "Optimization terminated successfully.", 1 : "Function evaluation required (f & c)", 2 : "More equality constraints than independent variables", 3 : "More than 3*n iterations in LSQ subproblem", 4 : "Inequality constraints incompatible", 5 : "Singular matrix E in LSQ subproblem", 6 : "Singular matrix C in LSQ subproblem", 7 : "Rank-deficient equality constraint subproblem HFTI", 8 : "Positive directional derivative for linesearch", 9 : "Iteration limit exceeded" } def fmin_slsqp( func, x0 , eqcons=[], f_eqcons=None, ieqcons=[], f_ieqcons=None, bounds = [], fprime = None, fprime_eqcons=None, fprime_ieqcons=None, args = (), iter = 100, acc = 1.0E-6, iprint = 1, full_output = 0, epsilon = _epsilon ): # Now do a lot of function wrapping # Wrap func feval, func = wrap_function(func, args) # Wrap fprime, if provided, or approx_fprime if not if fprime: geval, fprime = wrap_function(fprime,args) else: geval, fprime = wrap_function(approx_fprime,(func,epsilon)) if f_eqcons: # Equality constraints provided via f_eqcons ceval, f_eqcons = wrap_function(f_eqcons,args) if fprime_eqcons: # Wrap fprime_eqcons geval, fprime_eqcons = wrap_function(fprime_eqcons,args) else: # Wrap approx_jacobian geval, fprime_eqcons = wrap_function(approx_jacobian, (f_eqcons,epsilon)) else: # Equality constraints provided via eqcons[] eqcons_prime = [] for i in range(len(eqcons)): eqcons_prime.append(None) if eqcons[i]: # Wrap eqcons and eqcons_prime ceval, eqcons[i] = wrap_function(eqcons[i],args) geval, eqcons_prime[i] = wrap_function(approx_fprime, (eqcons[i],epsilon)) if f_ieqcons: # Inequality constraints provided via f_ieqcons ceval, f_ieqcons = wrap_function(f_ieqcons,args) if fprime_ieqcons: # Wrap fprime_ieqcons geval, fprime_ieqcons = wrap_function(fprime_ieqcons,args) else: # Wrap approx_jacobian geval, fprime_ieqcons = wrap_function(approx_jacobian, (f_ieqcons,epsilon)) else: # Inequality constraints provided via ieqcons[] ieqcons_prime = [] for i in range(len(ieqcons)): ieqcons_prime.append(None) if ieqcons[i]: # Wrap ieqcons and ieqcons_prime ceval, ieqcons[i] = wrap_function(ieqcons[i],args) geval, ieqcons_prime[i] = wrap_function(approx_fprime, (ieqcons[i],epsilon)) # Transform x0 into an array. x = asfarray(x0).flatten() # Set the parameters that SLSQP will need # meq = The number of equality constraints if f_eqcons: meq = len(f_eqcons(x)) else: meq = len(eqcons) if f_ieqcons: mieq = len(f_ieqcons(x)) else: mieq = len(ieqcons) # m = The total number of constraints m = meq + mieq # la = The number of constraints, or 1 if there are no constraints la = array([1,m]).max() # n = The number of independent variables n = len(x) # Define the workspaces for SLSQP n1 = n+1 mineq = m - meq + n1 + n1 len_w = (3*n1+m)*(n1+1)+(n1-meq+1)*(mineq+2) + 2*mineq+(n1+mineq)*(n1-meq) \ + 2*meq + n1 +(n+1)*n/2 + 2*m + 3*n + 3*n1 + 1 len_jw = mineq w = zeros(len_w) jw = zeros(len_jw) # Decompose bounds into xl and xu if len(bounds) == 0: bounds = [(-1.0E12, 1.0E12) for i in range(n)] elif len(bounds) != n: raise IndexError, \ 'SLSQP Error: If bounds is specified, len(bounds) == len(x0)' else: for i in range(len(bounds)): if bounds[i][0] > bounds[i][1]: raise ValueError, \ 'SLSQP Error: lb > ub in bounds[' + str(i) +'] ' + str(bounds[4]) xl = array( [ b[0] for b in bounds ] ) xu = array( [ b[1] for b in bounds ] ) # Initialize the iteration counter and the mode value mode = array(0,int) acc = array(acc,float) majiter = array(iter,int) majiter_prev = 0 # Print the header if iprint >= 2 if iprint >= 2: print "%5s %5s %16s %16s" % ("NIT","FC","OBJFUN","GNORM") while 1: if mode == 0 or mode == 1: # objective and constraint evaluation requird # Compute objective function fx = func(x) # Compute the constraints if f_eqcons: c_eq = f_eqcons(x) else: c_eq = array([ eqcons[i](x) for i in range(meq) ]) if f_ieqcons: c_ieq = f_ieqcons(x) else: c_ieq = array([ ieqcons[i](x) for i in range(len(ieqcons)) ]) # Now combine c_eq and c_ieq into a single matrix if m == 0: # no constraints c = zeros([la]) else: # constraints exist if meq > 0 and mieq == 0: # only equality constraints c = c_eq if meq == 0 and mieq > 0: # only inequality constraints c = c_ieq if meq > 0 and mieq > 0: # both equality and inequality constraints exist c = append(c_eq, c_ieq) if mode == 0 or mode == -1: # gradient evaluation required # Compute the derivatives of the objective function # For some reason SLSQP wants g dimensioned to n+1 g = append(fprime(x),0.0) # Compute the normals of the constraints if fprime_eqcons: a_eq = fprime_eqcons(x) else: a_eq = zeros([meq,n]) for i in range(meq): a_eq[i] = eqcons_prime[i](x) if fprime_ieqcons: a_ieq = fprime_ieqcons(x) else: a_ieq = zeros([mieq,n]) for i in range(mieq): a_ieq[i] = ieqcons_prime[i](x) # Now combine a_eq and a_ieq into a single a matrix if m == 0: # no constraints a = zeros([la,n]) elif meq > 0 and mieq == 0: # only equality constraints a = a_eq elif meq == 0 and mieq > 0: # only inequality constraints a = a_ieq elif meq > 0 and mieq > 0: # both equality and inequality constraints exist a = vstack((a_eq,a_ieq)) a = concatenate((a,zeros([la,1])),1) # Call SLSQP slsqp(m, meq, x, xl, xu, fx, c, g, a, acc, majiter, mode, w, jw) # Print the status of the current iterate if iprint > 2 and the # major iteration has incremented if iprint >= 2 and majiter > majiter_prev: print "%5i %5i % 16.6E % 16.6E" % (majiter,feval[0], fx,linalg.norm(g)) # If exit mode is not -1 or 1, slsqp has completed if abs(mode) != 1: break majiter_prev = int(majiter) # Optimization loop complete. Print status if requested if iprint >= 1: print exit_modes[int(mode)] + " (Exit mode " + str(mode) + ')' print " Current function value:", fx print " Iterations:", majiter print " Function evaluations:", feval[0] print " Gradient evaluations:", geval[0] if not full_output: return x else: return [list(x), float(fx), int(majiter), int(mode), exit_modes[int(mode)] ]

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  • Javascript stockticker : not showing data on php page

    - by developer
    iam not getting any javascript errors , code is getting rendered properly only, but still server not displaying data on the page. please check the code below . <style type="text/css"> #marqueeborder { color: #cccccc; background-color: #EEF3E2; font-family:"Lucida Console", Monaco, monospace; position:relative; height:20px; overflow:hidden; font-size: 0.7em; } #marqueecontent { position:absolute; left:0px; line-height:20px; white-space:nowrap; } .stockbox { margin:0 10px; } .stockbox a { color: #cccccc; text-decoration : underline; } </style> </head> <body> <div id="marqueeborder" onmouseover="pxptick=0" onmouseout="pxptick=scrollspeed"> <div id="marqueecontent"> <?php // Original script by Walter Heitman Jr, first published on http://techblog.shanock.com // List your stocks here, separated by commas, no spaces, in the order you want them displayed: $stocks = "idt,iye,mill,pwer,spy,f,msft,x,sbux,sne,ge,dow,t"; // Function to copy a stock quote CSV from Yahoo to the local cache. CSV contains symbol, price, and change function upsfile($stock) { copy("http://finance.yahoo.com/d/quotes.csv?s=$stock&f=sl1c1&e=.csv","stockcache/".$stock.".csv"); } foreach ( explode(",", $stocks) as $stock ) { // Where the stock quote info file should be... $local_file = "stockcache/".$stock.".csv"; // ...if it exists. If not, download it. if (!file_exists($local_file)) { upsfile($stock); } // Else,If it's out-of-date by 15 mins (900 seconds) or more, update it. elseif (filemtime($local_file) <= (time() - 900)) { upsfile($stock); } // Open the file, load our values into an array... $local_file = fopen ("stockcache/".$stock.".csv","r"); $stock_info = fgetcsv ($local_file, 1000, ","); // ...format, and output them. I made the symbols into links to Yahoo's stock pages. echo "<span class=\"stockbox\"><a href=\"http://finance.yahoo.com/q?s=".$stock_info[0]."\">".$stock_info[0]."</a> ".sprintf("%.2f",$stock_info[1])." <span style=\""; // Green prices for up, red for down if ($stock_info[2]>=0) { echo "color: #009900;\">&uarr;"; } elseif ($stock_info[2]<0) { echo "color: #ff0000;\">&darr;"; } echo sprintf("%.2f",abs($stock_info[2]))."</span></span>\n"; // Done! fclose($local_file); } ?> <span class="stockbox" style="font-size:0.6em">Quotes from <a href="http://finance.yahoo.com/">Yahoo Finance</a></span> </div> </div> </body> <script type="text/javascript"> // Original script by Walter Heitman Jr, first published on http://techblog.shanock.com // Set an initial scroll speed. This equates to the number of pixels shifted per tick var scrollspeed=2; var pxptick=scrollspeed; var marqueediv=''; var contentwidth=""; var marqueewidth = ""; function startmarquee(){ alert("hi"); // Make a shortcut referencing our div with the content we want to scroll marqueediv=document.getElementById("marqueecontent"); //alert("marqueediv"+marqueediv); alert("hi"+marqueediv.innerHTML); // Get the total width of our available scroll area marqueewidth=document.getElementById("marqueeborder").offsetWidth; alert("marqueewidth"+marqueewidth); // Get the width of the content we want to scroll contentwidth=marqueediv.offsetWidth; alert("contentwidth"+contentwidth); // Start the ticker at 50 milliseconds per tick, adjust this to suit your preferences // Be warned, setting this lower has heavy impact on client-side CPU usage. Be gentle. var lefttime=setInterval("scrollmarquee()",50); alert("lefttime"+lefttime); } function scrollmarquee(){ // Check position of the div, then shift it left by the set amount of pixels. if (parseInt(marqueediv.style.left)>(contentwidth*(-1))) marqueediv.style.left=parseInt(marqueediv.style.left)-pxptick+"px"; //alert("hikkk"+marqueediv.innerHTML);} // If it's at the end, move it back to the right. else{ alert("marqueewidth"+marqueewidth); marqueediv.style.left=parseInt(marqueewidth)+"px"; } } window.onload=startmarquee; </script> </html> Below is the server displayed page. I have updated with screenshot with your suggestion, i made change in html too, to check what is showing by child dev

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  • jQuery templates - Load another template within a template (composite)

    - by Saxman
    I'm following this post by Dave Ward (http://encosia.com/2010/12/02/jquery-templates-composite-rendering-and-remote-loading/) to load a composite templates for a Blog, where I have a total of 3 small templates (all in one file) for a blog post. In the template file, I have these 3 templates: blogTemplate, where I render the "postTemplate" Inside the "postTemplate", I would like to render another template that displays comments, I called this "commentsTemplate" the "commentsTemplate" Here's the structure of my json data: blog Title Content PostedDate Comments (a collection of comments) CommentContents CommentedBy CommentedDate For now, I was able to render the Post content using the code below: Javascript $(document).ready(function () { $.get('/GetPost', function (data) { $.get('/Content/Templates/_postWithComments.tmpl.htm', function (templates) { $('body').append(templates); $('#blogTemplate').tmpl(data).appendTo('#blogPost'); }); }); }); Templates <!--Blog Container Templates--> <script id="blogTemplate" type="x-jquery-tmpl"> <div class="latestPost"> {{tmpl() '#postTemplate'}} </div> </script> <!--Post Item Container--> <script id="postTemplate" type="x-jquery-tmpl"> <h2> ${Title}</h2> <div class="entryHead"> Posted in <a class="category" rel="#">Design</a> on ${PostedDateString} <a class="comments" rel="#">${NumberOfComments} Comments</a></div> ${Content} <div class="tags"> {{if Tags.length}} <strong>Tags:</strong> {{each(i, tag) Tags}} <a class="tag" href="/blog/tags/{{= tag.Name}}"> {{= tag.Name}}</a> {{/each}} <a class="share" rel="#"><strong>TELL A FRIEND</strong></a> <a class="share twitter" rel="#">Twitter</a> <a class="share facebook" rel="#">Facebook</a> {{/if}} </div> <!-- close .tags --> <!-- end Entry 01 --> {{if Comments.length}} {{each(i, comment) Comments}} {{tmpl() '#commentTemplate'}} {{/each}} {{/if}} <div class="lineHor"> </div> </script> <!--Comment Items Container--> <script id="commentTemplate" type="x-jquery-tmpl"> <h4> Comments</h4> &nbsp; <!-- COMMENT --> <div id="authorComment1"> <div id="gravatar1" class="grid_2"> <!--<img src="images/gravatar.png" alt="" />--> </div> <!-- close #gravatar --> <div id="commentText1"> <span class="replyHead">by<a class="author" rel="#">${= comment.CommentedBy}</a>on today</span> <p> {{= comment.CommentContents}}</p> </div> <!-- close #commentText --> <div id="quote1"> <a class="quote" rel="#"><strong>Quote this Comment</strong></a> </div> <!-- close #quote --> </div> <!-- close #authorComment --> <!-- END COMMENT --> </script> Where I'm having problem is at the {{each(i, comment) Comments}} {{tmpl() '#commentTemplate'}} {{/each}} Update - Example Json data when GetPost method is called { Id: 1, Title: "Test Blog", Content: "This is a test post asdf asdf asdf asdf asdf", PostedDateString: "2010-12-20", - Comments: [ - { Id: 1, PostId: 1, CommentContents: "Test comments # 1, asdf asdf asdf", PostedBy: "User 1", CommentedDate: "2010-12-20" }, - { Id: 2, PostId: 1, CommentContents: "Test comments # 2, ghjk gjjk gjkk", PostedBy: "User 2", CommentedDate: "2010-12-21" } ] } I've tried passing in {{tmpl(comment) ..., {{tmpl(Comments) ..., or leave {{tmpl() ... but none seems to work. I don't know how to iterate over the Comments collection and pass that object into the commentsTemplate. Any suggestions? Thank you very much.

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  • PHP: Strange behaviour while calling custom php functions

    - by baltusaj
    I am facing a strange behavior while coding in PHP with Flex. Let me explain the situation: I have two funcions lets say: populateTable() //puts some data in a table made with flex createXML() //creates an xml file which is used by Fusion Charts to create a chart Now, if i call populateTable() alone, the table gets populated with data but if i call it with createXML(), the table doesn't get populated but createXML() does it's work i.e. creates an xml file. Even if i run following code, only xml file gets generated but table remains empty whereas i called populateTable() before createXML(). Any idea what may be going wrong? MXML Part <mx:HTTPService id="userRequest" url="request.php" method="POST" resultFormat="e4x"> <mx:request xmlns=""> <getResult>send</getResult> </mx:request> and <mx:DataGrid id="dgUserRequest" dataProvider="{userRequest.lastResult.user}" x="28.5" y="36" width="525" height="250" > <mx:columns> <mx:DataGridColumn headerText="No." dataField="no" /> <mx:DataGridColumn headerText="Name" dataField="name"/> <mx:DataGridColumn headerText="Age" dataField="age"/> </mx:columns> PHP Part <?php //-------------------------------------------------------------------------- function initialize($username,$password,$database) //-------------------------------------------------------------------------- { # Connect to the database $link = mysql_connect("localhost", $username,$password); if (!$link) { die('Could not connected to the database : ' . mysql_error()); } # Select the database $db_selected = mysql_select_db($database, $link); if (!$db_selected) { die ('Could not select the DB : ' . mysql_error()); } // populateTable(); createXML(); # Close database connection } //-------------------------------------------------------------------------- populateTable() //-------------------------------------------------------------------------- { if($_POST['getResult'] == 'send') { $Result = mysql_query("SELECT * FROM session" ); $Return = "<Users>"; $no = 1; while ( $row = mysql_fetch_object( $Result ) ) { $Return .= "<user><no>".$no."</no><name>".$row->name."</name><age>".$row->age."</age><salary>". $row->salary."</salary></session>"; $no=$no+1; $Return .= "</Users>"; mysql_free_result( $Result ); print ($Return); } //-------------------------------------------------------------------------- createXML() //-------------------------------------------------------------------------- { $users=array ( "0"=>array("",0), "1"=>array("Obama",0), "2"=>array("Zardari",0), "3"=>array("Imran Khan",0), "4"=>array("Ahmadenijad",0) ); $selectedUsers=array(1,4); //this means only obama and ahmadenijad are selected and the xml file will contain info related to them only //Extracting salaries of selected users $size=count($users); for($i = 0; $i<$size; $i++) { //initialize temp which will calculate total throughput for each protocol separately $salary = 0; $result = mysql_query("SELECT salary FROM userInfo where name='$users[$selectedUsers[$i]][0]'"); $row = mysql_fetch_array($result)) $salary = $row['salary']; } $users[$selectedUsers[$i]][1]=$salary; } //creating XML string $chartContent = "<chart caption=\"Users Vs Salaries\" formatNumberScale=\"0\" pieSliceDepth=\"30\" startingAngle=\"125\">"; for($i=0;$i<$size;$i++) { $chartContent .= "<set label=\"".$users[$selectedUsers[$i]][0]."\" value=\"".$users[$selectedUsers[$i]][1]."\"/>"; } $chartContent .= "<styles>" . "<definition>" . "<style type=\"font\" name=\"CaptionFont\" size=\"16\" color=\"666666\"/>" . "<style type=\"font\" name=\"SubCaptionFont\" bold=\"0\"/>" . "</definition>" . "<application>" . "<apply toObject=\"caption\" styles=\"CaptionFont\"/>" . "<apply toObject=\"SubCaption\" styles=\"SubCaptionFont\"/>" . "</application>" . "</styles>" . "</chart>"; $file_handle = fopen('ChartData.xml','w'); fwrite($file_handle,$chartContent); fclose($file_handle); } initialize("root","","hiddenpeak"); ?>

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  • How to filter Backbone.js Collection and Rerender App View?

    - by Jeremy H.
    Is is a total Backbone.js noob question. I am working off of the ToDo Backbone.js example trying to build out a fairly simple single app interface. While the todo project is more about user input, this app is more about filtering the data based on the user options (click events). I am completely new to Backbone.js and Mongoose and have been unable to find a good example of what I am trying to do. I have been able to get my api to pull the data from the MongoDB collection and drop it into the Backbone.js collection which renders it in the app. What I cannot for the life of me figure out how to do is filter that data and re-render the app view. I am trying to filter by the "type" field in the document. Here is my script: (I am totally aware of some major refactoring needed, I am just rapid prototyping a concept.) $(function() { window.Job = Backbone.Model.extend({ idAttribute: "_id", defaults: function() { return { attachments: false } } }); window.JobsList = Backbone.Collection.extend({ model: Job, url: '/api/jobs', leads: function() { return this.filter(function(job){ return job.get('type') == "Lead"; }); } }); window.Jobs = new JobsList; window.JobView = Backbone.View.extend({ tagName: "div", className: "item", template: _.template($('#item-template').html()), initialize: function() { this.model.bind('change', this.render, this); this.model.bind('destroy', this.remove, this); }, render: function() { $(this.el).html(this.template(this.model.toJSON())); this.setText(); return this; }, setText: function() { var month=new Array(); month[0]="Jan"; month[1]="Feb"; month[2]="Mar"; month[3]="Apr"; month[4]="May"; month[5]="Jun"; month[6]="Jul"; month[7]="Aug"; month[8]="Sep"; month[9]="Oct"; month[10]="Nov"; month[11]="Dec"; var title = this.model.get('title'); var description = this.model.get('description'); var datemonth = this.model.get('datem'); var dateday = this.model.get('dated'); var jobtype = this.model.get('type'); var jobstatus = this.model.get('status'); var amount = this.model.get('amount'); var paymentstatus = this.model.get('paymentstatus') var type = this.$('.status .jobtype'); var status = this.$('.status .jobstatus'); this.$('.title a').text(title); this.$('.description').text(description); this.$('.date .month').text(month[datemonth]); this.$('.date .day').text(dateday); type.text(jobtype); status.text(jobstatus); if(amount > 0) this.$('.paymentamount').text(amount) if(paymentstatus) this.$('.paymentstatus').text(paymentstatus) if(jobstatus === 'New') { status.addClass('new'); } else if (jobstatus === 'Past Due') { status.addClass('pastdue') }; if(jobtype === 'Lead') { type.addClass('lead'); } else if (jobtype === '') { type.addClass(''); }; }, remove: function() { $(this.el).remove(); }, clear: function() { this.model.destroy(); } }); window.AppView = Backbone.View.extend({ el: $("#main"), events: { "click #leads .highlight" : "filterLeads" }, initialize: function() { Jobs.bind('add', this.addOne, this); Jobs.bind('reset', this.addAll, this); Jobs.bind('all', this.render, this); Jobs.fetch(); }, addOne: function(job) { var view = new JobView({model: job}); this.$("#activitystream").append(view.render().el); }, addAll: function() { Jobs.each(this.addOne); }, filterLeads: function() { // left here, this event fires but i need to figure out how to filter the activity list. } }); window.App = new AppView; });

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  • Fetching value from collection

    - by user334119
    public string GetProductVariantImageUrl(ShoppingCartItem shoppingCartItem) { string pictureUrl = String.Empty; ProductVariant productVariant = shoppingCartItem.ProductVariant; ProductVariantAttributeValueCollection pvaValues = shoppingCartItem.Attributes; [here the count comes 0]{case1} } public string GetAttributeDescription(ShoppingCartItem shoppingCartItem) { string result = string.Empty; ProductVariant productVariant = shoppingCartItem.ProductVariant; if (productVariant != null) { ProductVariantAttributeValueCollection pvaValues = shoppingCartItem.Attributes;[here count is 1] } } WHY am i not able to get count as 1 for the case1. /// <summary> /// Represents a shopping cart item /// </summary> public class ShoppingCartItem : BaseEntity { #region Fields private ProductVariant _cachedProductVariant; private ProductVariantAttributeValueCollection _cachedPvaValues; #endregion #region Ctor /// <summary> /// Creates a new instance of the shopping cart class /// </summary> public ShoppingCartItem() { } #endregion #region Properties /// <summary> /// Gets or sets the shopping cart item identifier /// </summary> public int ShoppingCartItemID { get; set; } /// <summary> /// Gets or sets the shopping cart type identifier /// </summary> public int ShoppingCartTypeID { get; set; } /// <summary> /// Gets or sets the customer session identifier /// </summary> public Guid CustomerSessionGUID { get; set; } /// <summary> /// Gets or sets the product variant identifier /// </summary> public int ProductVariantID { get; set; } /// <summary> /// Gets or sets the product variant attribute identifiers /// </summary> public List<int> AttributeIDs { get; set; } /// <summary> /// Gets or sets the text option /// </summary> public string TextOption { get; set; } /// <summary> /// Gets or sets the quantity /// </summary> public int Quantity { get; set; } /// <summary> /// Gets or sets the date and time of instance creation /// </summary> public DateTime CreatedOn { get; set; } /// <summary> /// Gets or sets the date and time of instance update /// </summary> public DateTime UpdatedOn { get; set; } #endregion #region Custom Properties /// <summary> /// Gets the log type /// </summary> public ShoppingCartTypeEnum ShoppingCartType { get { return (ShoppingCartTypeEnum)ShoppingCartTypeID; } } /// <summary> /// Gets the product variant /// </summary> public ProductVariant ProductVariant { get { if (_cachedProductVariant == null) { _cachedProductVariant = ProductManager.GetProductVariantByID(ProductVariantID); } return _cachedProductVariant; } } /// <summary> /// Gets the product variant attribute values /// </summary> public ProductVariantAttributeValueCollection Attributes { get { if (_cachedPvaValues == null) { ProductVariantAttributeValueCollection pvaValues = new ProductVariantAttributeValueCollection(); foreach (int attributeID in this.AttributeIDs) { ProductVariantAttributeValue pvaValue = ProductAttributeManager.GetProductVariantAttributeValueByID(attributeID); if (pvaValue != null) pvaValues.Add(pvaValue); } _cachedPvaValues = pvaValues; } return _cachedPvaValues; } } /// <summary> /// Gets the total weight /// </summary> public decimal TotalWeigth { get { decimal totalWeigth = decimal.Zero; ProductVariant productVariant = ProductVariant; if (productVariant != null) { decimal attributesTotalWeight = decimal.Zero; foreach (ProductVariantAttributeValue pvaValue in this.Attributes) { attributesTotalWeight += pvaValue.WeightAdjustment; } decimal unitWeight = productVariant.Weight + attributesTotalWeight; totalWeigth = unitWeight * Quantity; } return totalWeigth; } } /// <summary> /// Gets a value indicating whether the shopping cart item is free shipping /// </summary> public bool IsFreeShipping { get { ProductVariant productVariant = this.ProductVariant; if (productVariant != null) return productVariant.IsFreeShipping; return true; } }

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  • Sending the files (At least 11 files) from folder through web service to android app.

    - by Shashank_Itmaster
    Hello All, I stuck in middle of this situation,Please help me out. My question is that I want to send files (Total 11 PDF Files) to android app using web service. I tried it with below code.Main Class from which web service is created public class MultipleFilesImpl implements MultipleFiles { public FileData[] sendPDFs() { FileData fileData = null; // List<FileData> filesDetails = new ArrayList<FileData>(); File fileFolder = new File( "C:/eclipse/workspace/AIPWebService/src/pdfs/"); // File fileTwo = new File( // "C:/eclipse/workspace/AIPWebService/src/simple.pdf"); File sendFiles[] = fileFolder.listFiles(); // sendFiles[0] = fileOne; // sendFiles[1] = fileTwo; DataHandler handler = null; char[] readLine = null; byte[] data = null; int offset = 0; int numRead = 0; InputStream stream = null; FileOutputStream outputStream = null; FileData[] filesData = null; try { System.out.println("Web Service Called Successfully"); for (int i = 0; i < sendFiles.length; i++) { handler = new DataHandler(new FileDataSource(sendFiles[i])); fileData = new FileData(); data = new byte[(int) sendFiles[i].length()]; stream = handler.getInputStream(); while (offset < data.length && (numRead = stream.read(data, offset, data.length - offset)) >= 0) { offset += numRead; } readLine = Base64Coder.encode(data); offset = 0; numRead = 0; System.out.println("'Reading File............................"); System.out.println("\n"); System.out.println(readLine); System.out.println("Data Reading Successful"); fileData.setFileName(sendFiles[i].getName()); fileData.setFileData(String.valueOf(readLine)); readLine = null; System.out.println("Data from bean " + fileData.getFileData()); outputStream = new FileOutputStream("D:/" + sendFiles[i].getName()); outputStream.write(Base64Coder.decode(fileData.getFileData())); outputStream.flush(); outputStream.close(); stream.close(); // FileData fileDetails = new FileData(); // fileDetails = fileData; // filesDetails.add(fileData); filesData = new FileData[(int) sendFiles[i].length()]; } // return fileData; } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } return filesData; } } Also The Interface MultipleFiles:- public interface MultipleFiles extends Remote { public FileData[] sendPDFs() throws FileNotFoundException, IOException, Exception; } Here I am sending an array of bean "File Data",having properties viz. FileData & FileName. FileData- contains file data in encoded. FileName- encoded file name. The Bean:- (FileData) public class FileData { private String fileName; private String fileData; public String getFileName() { return fileName; } public void setFileName(String fileName) { this.fileName = fileName; } public String getFileData() { return fileData; } public void setFileData(String string) { this.fileData = string; } } The android DDMS gives out of memory exception when tried below code & when i tried to send two files then only first file is created. public class PDFActivity extends Activity { private final String METHOD_NAME = "sendPDFs"; private final String NAMESPACE = "http://webservice.uks.com/"; private final String SOAP_ACTION = NAMESPACE + METHOD_NAME; private final String URL = "http://192.168.1.123:8080/AIPWebService/services/MultipleFilesImpl"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TextView textViewOne = (TextView) findViewById(R.id.textViewOne); try { SoapObject soapObject = new SoapObject(NAMESPACE, METHOD_NAME); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope( SoapEnvelope.VER11); envelope.setOutputSoapObject(soapObject); textViewOne.setText("Web Service Started"); AndroidHttpTransport httpTransport = new AndroidHttpTransport(URL); httpTransport.call(SOAP_ACTION, envelope); // SoapObject result = (SoapObject) envelope.getResponse(); Object result = envelope.getResponse(); Log.i("Result", result.toString()); // String fileName = result.getProperty("fileName").toString(); // String fileData = result.getProperty("fileData").toString(); // Log.i("File Name", fileName); // Log.i("File Data", fileData); // File pdfFile = new File(fileName); // FileOutputStream outputStream = // openFileOutput(pdfFile.toString(), // MODE_PRIVATE); // outputStream.write(Base64Coder.decode(fileData)); Log.i("File", "File Created"); // textViewTwo.setText(result); // Object result = envelope.getResponse(); // FileOutputStream outputStream = openFileOutput(name, mode) } catch (Exception e) { e.printStackTrace(); } } } Please help with some explanation or changes in my code. Thanks in Advance.

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  • Watching setTimeout loops so that only one is running at a time.

    - by DA
    I'm creating a content rotator in jQuery. 5 items total. Item 1 fades in, pauses 10 seconds, fades out, then item 2 fades in. Repeat. Simple enough. Using setTimeout I can call a set of functions that create a loop and will repeat the process indefinitely. I now want to add the ability to interrupt this rotator at any time by clicking on a navigation element to jump directly to one of the content items. I originally started going down the path of pinging a variable constantly (say every half second) that would check to see if a navigation element was clicked and, if so, abandon the loop, then restart the loop based on the item that was clicked. The challenge I ran into was how to actually ping a variable via a timer. The solution is to dive into JavaScript closures...which are a little over my head but definitely something I need to delve into more. However, in the process of that, I came up with an alternative option that actually seems to be better performance-wise (theoretically, at least). I have a sample running here: http://jsbin.com/uxupi/14 (It's using console.log so have fireBug running) Sample script: $(document).ready(function(){ var loopCount = 0; $('p#hello').click(function(){ loopCount++; doThatThing(loopCount); }) function doThatOtherThing(currentLoopCount) { console.log('doThatOtherThing-'+currentLoopCount); if(currentLoopCount==loopCount){ setTimeout(function(){doThatThing(currentLoopCount)},5000) } } function doThatThing(currentLoopCount) { console.log('doThatThing-'+currentLoopCount); if(currentLoopCount==loopCount){ setTimeout(function(){doThatOtherThing(currentLoopCount)},5000); } } }) The logic being that every click of the trigger element will kick off the loop passing into itself a variable equal to the current value of the global variable. That variable gets passed back and forth between the functions in the loop. Each click of the trigger also increments the global variable so that subsequent calls of the loop have a unique local variable. Then, within the loop, before the next step of each loop is called, it checks to see if the variable it has still matches the global variable. If not, it knows that a new loop has already been activated so it just ends the existing loop. Thoughts on this? Valid solution? Better options? Caveats? Dangers? UPDATE: I'm using John's suggestion below via the clearTimeout option. However, I can't quite get it to work. The logic is as such: var slideNumber = 0; var timeout = null; function startLoop(slideNumber) { ...do stuff here to set up the slide based on slideNumber... slideFadeIn() } function continueCheck(){ if (timeout != null) { // cancel the scheduled task. clearTimeout(timeout); timeout = null; return false; }else{ return true; } }; function slideFadeIn() { if (continueCheck){ // a new loop hasn't been called yet so proceed... // fade in the LI $currentListItem.fadeIn(fade, function() { if(multipleFeatures){ timeout = setTimeout(slideFadeOut,display); } }); }; function slideFadeOut() { if (continueLoop){ // a new loop hasn't been called yet so proceed... slideNumber=slideNumber+1; if(slideNumber==features.length) { slideNumber = 0; }; timeout = setTimeout(function(){startLoop(slideNumber)},100); }; startLoop(slideNumber); The above kicks of the looping. I then have navigation items that, when clicked, I want the above loop to stop, then restart with a new beginning slide: $(myNav).click(function(){ clearTimeout(timeout); timeout = null; startLoop(thisItem); }) If I comment out 'startLoop...' from the click event, it, indeed, stops the initial loop. However, if I leave that last line in, it doesn't actually stop the initial loop. Why? What happens is that both loops seem to run in parallel for a period. So, when I click my navigation, clearTimeout is called, which clears it.

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  • New hire expectations... (Am I being unreasonable?)

    - by user295841
    I work for a very small custom software shop. We currently consist me and my boss. My boss is an old FoxPro DOS developer and OOP makes him uncomfortable. He is planning on taking a back seat in the next few years to hopefully enjoy a “partial retirement”. I will be taking over the day to day operations and we are now desperately looking for more help. We tried Monster.com, Dice.com, and others a few years ago when we started our search. We had no success. We have tried outsourcing overseas (total disaster), hiring kids right out of college (mostly a disaster but that’s where I came from), interns (good for them, not so good for us) and hiring laid off “experienced” developers (there was a reason they were laid off). I have heard hiring practices discussed on podcasts, blogs, etc... and have tried a few. The “Fizz Buzz” test was a good one. One kid looked physically ill before he finally gave up. I think my problem is that I have grown so much as a developer since I started here that I now have a high standard. I hear/read very intelligent people podcasts and blogs and I know that there are lots of people out there that can do the job. I don’t want to settle for less than a “good” developer. Perhaps my expectations are unreasonable. I expect any good developer (entry level or experienced) to be billable (at least paying their own wage) in under one month. I expect any good developer to be able to be productive (at least dangerous) in any language or technology with only a few days of research/training. I expect any good developer to be able to take a project from initial customer request to completion with little or no help from others. Am I being unreasonable? What constitutes a valuable developer? What should be expected of an entry level developer? What should be expected of an experienced developer? I realize that everyone is different but there has to be some sort of expectations standard, right? I have been giving the test project below to potential canidates to weed them out. Good idea? Too much? Too little? Please let me know what you think. Thanks. Project ID: T00001 Description: Order Entry System Deadline: 1 Week Scope The scope of this project is to develop a fully function order entry system. Screen/Form design must be user friendly and promote efficient data entry and modification. User experience (Navigation, Screen/Form layouts, Look and Feel…) is at the developer’s discretion. System may be developed using any technologies that conform to the technical and system requirements. Deliverables Complete source code Database setup instructions (Scripts or restorable backup) Application installation instructions (Installer or installation procedure) Any necessary documentation Technical Requirements Server Platform – Windows XP / Windows Server 2003 / SBS Client Platform – Windows XP Web Browser (If applicable) – IE 8 Database – At developer’s discretion (Must be a relational SQL database.) Language – At developer’s discretion All data must be normalized. (+) All data must maintain referential integrity. (++) All data must be indexed for optimal performance. System must handle concurrency. System Requirements Customer Maintenance Customer records must have unique ID. Customer data will include Name, Address, Phone, etc. User must be able to perform all CRUD (Create, Read, Update, and Delete) operations on the Customer table. User must be able to enter a specific Customer ID to edit. User must be able to pull up a sortable/queryable search grid/utility to find a customer to edit. Validation must be performed prior to database commit. Customer record cannot be deleted if the customer has an order in the system. (++) Inventory Maintenance Part records must have unique ID. Part data will include Description, Price, UOM (Unit of Measure), etc. User must be able to perform all CRUD operations on the part table. User must be able to enter a specific Part ID to edit. User must be able to pull up a sortable/queryable search grid/utility to find a part to edit. Validation must be performed prior to database commit. Part record cannot be deleted if the part has been used in an order. (++) Order Entry Order records must have a unique auto-incrementing key (Order Number). Order data must be split into a header/detail structure. (+) Order can contain an infinite number of detail records. Order header data will include Order Number, Customer ID (++), Order Date, Order Status (Open/Closed), etc. Order detail data will include Part Number (++), Quantity, Price, etc. User must be able to perform all CRUD operations on the order tables. User must be able to enter a specific Order Number to edit. User must be able to pull up a sortable/queryable search grid/utility to find an order to edit. User must be able to print an order form from within the order entry form. Validation must be performed prior to database commit. Reports Customer Listing – All Customers in the system. Inventory Listing – All parts in the system. Open Order Listing – All open orders in system. Customer Order Listing – All orders for specific customer. All reports must include sorts and filter functions where applicable. Ex. Customer Listing by range of Customer IDs. Open Order Listing by date range.

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  • What's wrong with Bundler working with RubyGems to push a Git repo to Heroku?

    - by stanigator
    I've made sure that all the files are in the root of the repository as recommended in this discussion. However, as I follow the instructions in this section of the book, I can't get through the section without the problems. What do you think is happening with my system that's causing the error? I have no clue at the moment of what the problem means despite reading the following in the log. Thanks in advance for your help! stanley@ubuntu:~/rails_sample/first_app$ git push heroku master Warning: Permanently added the RSA host key for IP address '50.19.85.156' to the list of known hosts. Counting objects: 96, done. Compressing objects: 100% (79/79), done. Writing objects: 100% (96/96), 28.81 KiB, done. Total 96 (delta 22), reused 0 (delta 0) -----> Heroku receiving push -----> Ruby/Rails app detected -----> Installing dependencies using Bundler version 1.2.0.pre Running: bundle install --without development:test --path vendor/bundle --binstubs bin/ --deployment Fetching gem metadata from https://rubygems.org/....... Installing rake (0.9.2.2) Installing i18n (0.6.0) Installing multi_json (1.3.5) Installing activesupport (3.2.3) Installing builder (3.0.0) Installing activemodel (3.2.3) Installing erubis (2.7.0) Installing journey (1.0.3) Installing rack (1.4.1) Installing rack-cache (1.2) Installing rack-test (0.6.1) Installing hike (1.2.1) Installing tilt (1.3.3) Installing sprockets (2.1.3) Installing actionpack (3.2.3) Installing mime-types (1.18) Installing polyglot (0.3.3) Installing treetop (1.4.10) Installing mail (2.4.4) Installing actionmailer (3.2.3) Installing arel (3.0.2) Installing tzinfo (0.3.33) Installing activerecord (3.2.3) Installing activeresource (3.2.3) Installing coffee-script-source (1.3.3) Installing execjs (1.3.2) Installing coffee-script (2.2.0) Installing rack-ssl (1.3.2) Installing json (1.7.3) with native extensions Installing rdoc (3.12) Installing thor (0.14.6) Installing railties (3.2.3) Installing coffee-rails (3.2.2) Installing jquery-rails (2.0.2) Using bundler (1.2.0.pre) Installing rails (3.2.3) Installing sass (3.1.18) Installing sass-rails (3.2.5) Installing sqlite3 (1.3.6) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/local/bin/ruby extconf.rb checking for sqlite3.h... no sqlite3.h is missing. Try 'port install sqlite3 +universal' or 'yum install sqlite-devel' and check your shared library search path (the location where your sqlite3 shared library is located). *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/local/bin/ruby --with-sqlite3-dir --without-sqlite3-dir --with-sqlite3-include --without-sqlite3-include=${sqlite3-dir}/include --with-sqlite3-lib --without-sqlite3-lib=${sqlite3-dir}/lib --enable-local --disable-local Gem files will remain installed in /tmp/build_3tplrxvj7qa81/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.6 for inspection. Results logged to /tmp/build_3tplrxvj7qa81/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out An error occurred while installing sqlite3 (1.3.6), and Bundler cannot continue. Make sure that `gem install sqlite3 -v '1.3.6'` succeeds before bundling. ! ! Failed to install gems via Bundler. ! ! Heroku push rejected, failed to compile Ruby/rails app To [email protected]:growing-mountain-2788.git ! [remote rejected] master -> master (pre-receive hook declined) error: failed to push some refs to '[email protected]:growing-mountain-2788.git' ------Gemfile------------------------ As requested, here's the auto-generated gemfile: source 'https://rubygems.org' gem 'rails', '3.2.3' # Bundle edge Rails instead: # gem 'rails', :git => 'git://github.com/rails/rails.git' gem 'sqlite3' gem 'json' # Gems used only for assets and not required # in production environments by default. group :assets do gem 'sass-rails', '~> 3.2.3' gem 'coffee-rails', '~> 3.2.1' # See https://github.com/sstephenson/execjs#readme for more supported runtimes # gem 'therubyracer', :platform => :ruby gem 'uglifier', '>= 1.0.3' end gem 'jquery-rails' # To use ActiveModel has_secure_password # gem 'bcrypt-ruby', '~> 3.0.0' # To use Jbuilder templates for JSON # gem 'jbuilder' # Use unicorn as the app server # gem 'unicorn' # Deploy with Capistrano # gem 'capistrano' # To use debugger # gem 'ruby-debug'

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  • sequential mandelbrot image creation

    - by visanio_learner
    can anyone tell me what is wrong in this code? i am getting an error in the main function, when i am calling the 'file_write' method function inside the main function, it says 'y' is not declared in this scope, but actually it was an argument that i have passed it in the method function earlier. is it a serious error? #include <stdio.h> #include <stdlib.h> #include <time.h> unsigned int width = 1500; unsigned int height = 1500; unsigned int max_iterations = 30000; unsigned int **color = NULL; double threshold = 4; double min_re = -2.0; double max_re = 1.0; double min_im = -1.2; double max_im = min_im+(max_re-min_re)*height/width; double x_factor = (max_re-min_re)/(width-1); double y_factor = (max_im-min_im)/(height-1); int file_write(int x, int y, double min_re, double max_im, double x_factor, double y_factor) { FILE *fractal = fopen("mandelbrot_imageSequential.ppm","w+"); if(fractal != NULL) { fprintf(fractal,"P6\n"); fprintf(fractal,"# %s\n", "Mandelbrot_imageSequential.ppm"); fprintf(fractal,"%d %d\n", height, width); fprintf(fractal,"255\n"); unsigned int R = 0, G = 0, B = 0; for(unsigned y = 0; y < height; ++y) { double c_im = max_im - y*y_factor; for(unsigned x = 0; x < width; ++x) { double c_re = min_re + x*x_factor; double Z_re = c_re, Z_im = c_im; bool image_inside = true; R = 0, G = 0, B = 0; for(unsigned n=0; n<max_iterations; ++n) { double Z_re2 = Z_re*Z_re, Z_im2 = Z_im*Z_im; if(Z_re2 + Z_im2 > threshold) { image_inside = false; G = n; if(G == 10) { G = 25, R = 10, B = 5; } break; } Z_im = 2 * Z_re * Z_im + c_im; Z_re = Z_re2 - Z_im2 + c_re; } if(image_inside) { putc(R, fractal); putc(G, fractal); putc(B, fractal); } else { putc(R, fractal); putc(G, fractal); putc(B, fractal); } } } fclose(fractal); return 0; } } int main(int argc, char *argv[]) { if(argc != 9) { printf("There is an error in the input given.\n"); return 0; } else { height = atoi(argv[1]); width = atoi(argv[2]); max_iterations = atoi(argv[3]); min_re = atof(argv[4]); max_re = atof(argv[5]); min_im = atof(argv[6]); max_im = atof(argv[7]); threshold = atoi(argv[8]); } color = (unsigned int**)malloc(height*sizeof(unsigned int*)); printf("height = %d\twidth = %d\tmaximum_iterations = %d\tminimum_x-value = %.2f\tmaximum_x-value = %.2f\tminimum_y-value = %.2f\tmaximum_y-value = %.2f\tthreshold_value = %.2f\t\n",height,width,max_iterations,min_re,max_re,min_im,max_im,threshold); int x; for(x = 0; x < height; x++) { color[x] = (unsigned int*)malloc(width*sizeof(unsigned int)); } time_t ts,te; time(&ts); file_write(x,y,min_re,max_im,x_factor,y_factor); time(&te); double diff = difftime(te,ts); printf("Total Time elapsed: %f\n",diff); for(x = 0; x < height; x++) { free(color[x]); } free(color); return 0; }

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  • Fetch a specific tag from Rally in order to compute a value in another field

    - by 4jas
    I'm extremely new to Rally development so my question may sound dumb (but couldn't find how to do it from rally's help or from previous posts here) :) I've started from the rally freeform grid example - my purpose is to implement a Business Value calculator: I fill the score field with a 5-digit figure where each number is a score in the 1-5 range. Then I compute a business value as the result of a calculation, where each number is weighted by a preset weight. I can sort my stories by Business Value to help me prioritize my backlog: that's the first step, and it works. Now what I want to do is to make my freeform grid editable: I am extracting each of my digits as a separate column, but those columns are display-only. How can I turn them into something editable? What I want to do of course is update back the score field based on the values input in each custom column. Here's an example: I have a record with score "15254", which means Business Value criteria 1 scores 1 out of 5, Business Value criteria 2 scores 5 out of 5, and so on... In the end my Business Value is computed as "1*1 + 5*2 + 2*3 + 5*4 + 4*5 = 57". So far this is the part that works. Now let's say I found that the third criteria should not score 2 but 3, I want to be able to edit the value in the corresponding column and have my score field updated to "15354", and my Business Value to display 60 instead of 57. Here is my current code, I'll be really grateful if you can help me with turning that grid into something editable :) <!--Include SDK--> <script type="text/javascript" src="https://rally1.rallydev.com/apps/2.0p2/sdk-debug.js"></script> <!--App code--> <script type="text/javascript"> Rally.onReady(function() { Ext.define('BVApp', { extend: 'Rally.app.App', componentCls: 'app', launch: function() { Ext.create('Rally.data.WsapiDataStore', { model: 'UserStory', autoLoad: true, listeners: { load: this._onDataLoaded, scope: this } }); }, _onDataLoaded: function(store, data) { var records = []; var li_score; var li_bv1, li_bv2, li_bv3, li_bv4, li_bv5, li_bvtotal; var weights = new Array(1, 2, 3, 4, 5); Ext.Array.each(data, function(record) { //Let's fetch score and compute the business values... li_score = record.get('Score'); if (li_score) { li_bv1 = li_score.toString().substring(0,1); li_bv2 = li_score.toString().substring(1,2); li_bv3 = li_score.toString().substring(2,3); li_bv4 = li_score.toString().substring(3,4); li_bv5 = li_score.toString().substring(4,5); li_bvtotal = li_bv1*weights[0] + li_bv2*weights[1] + li_bv3*weights[2] + li_bv4*weights[3] + li_bv5*weights[4]; } records.push({ FormattedID: record.get('FormattedID'), ref: record.get('_ref'), Name: record.get('Name'), Score: record.get('Score'), Bv1: li_bv1, Bv2: li_bv2, Bv3: li_bv3, Bv4: li_bv4, Bv5: li_bv5, BvTotal: li_bvtotal }); }); this.add({ xtype: 'rallygrid', store: Ext.create('Rally.data.custom.Store', { data: records, pageSize: 5 }), columnCfgs: [ { text: 'FormattedID', dataIndex: 'FormattedID' }, { text: 'ref', dataIndex: 'ref' }, { text: 'Name', dataIndex: 'Name', flex: 1 }, { text: 'Score', dataIndex: 'Score' }, { text: 'BusVal 1', dataIndex: 'Bv1' }, { text: 'BusVal 2', dataIndex: 'Bv2' }, { text: 'BusVal 3', dataIndex: 'Bv3' }, { text: 'BusVal 4', dataIndex: 'Bv4' }, { text: 'BusVal 5', dataIndex: 'Bv5' }, { text: 'BusVal Total', dataIndex: 'BvTotal' } ] }); } }); Rally.launchApp('BVApp', { name: 'Business Values App' }); var exampleHtml = '<div id="example-intro"><h1>Business Values App</h1>' + '<div>Own sample app for Business Values</div>' + '</div>'; // Default app viewport uses layout: 'fit', // so we need to insert a container into the viewport var viewport = Ext.ComponentQuery.query('viewport')[0]; var appComponent = viewport.items.getAt(0); var viewportContainerItems = [{ html: exampleHtml, border: 0 }]; //hide advanced cardboard live previews in examples for now viewportContainerItems.push({ xtype: 'container', items: [appComponent] }); viewport.remove(appComponent, false); viewport.add({ xtype: 'container', layout: 'vbox', items: viewportContainerItems }); }); </script> <!--App styles--> <style type="text/css"> .app { /* Add app styles here */ } </style>

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  • Why isn't this file reading/writing program working?

    - by user320950
    This program is supposed to read files and write them. I took the file open checks out because they kept causing errors. The problem is that the files open like they are supposed to and the names are correct but nothing is on any of the text screens. Do you know what is wrong? #include<iostream> #include<fstream> #include<cstdlib> #include<iomanip> using namespace std; int main() { ifstream in_stream; // reads itemlist.txt ofstream out_stream1; // writes in items.txt ifstream in_stream2; // reads pricelist.txt ofstream out_stream3;// writes in plist.txt ifstream in_stream4;// read recipt.txt ofstream out_stream5;// write display.txt float price=' ',curr_total=0.0; int wrong=0; int itemnum=' '; char next; in_stream.open("ITEMLIST.txt", ios::in); // list of avaliable items out_stream1.open("listWititems.txt", ios::out); // list of avaliable items in_stream2.open("PRICELIST.txt", ios::in); out_stream3.open("listWitdollars.txt", ios::out); in_stream4.open("display.txt", ios::in); out_stream5.open("showitems.txt", ios::out); in_stream.close(); // closing files. out_stream1.close(); in_stream2.close(); out_stream3.close(); in_stream4.close(); out_stream5.close(); system("pause"); in_stream.setf(ios::fixed); while(in_stream.eof()) { in_stream >> itemnum; cin.clear(); cin >> next; } out_stream1.setf(ios::fixed); while (out_stream1.eof()) { out_stream1 << itemnum; cin.clear(); cin >> next; } in_stream2.setf(ios::fixed); in_stream2.setf(ios::showpoint); in_stream2.precision(2); while((price== (price*1.00)) && (itemnum == (itemnum*1))) { while (in_stream2 >> itemnum >> price) // gets itemnum and price { while (in_stream2.eof()) // reads file to end of file { in_stream2 >> itemnum; in_stream2 >> price; price++; curr_total= price++; in_stream2 >> curr_total; cin.clear(); // allows more reading cin >> next; } } } out_stream3.setf(ios::fixed); out_stream3.setf(ios::showpoint); out_stream3.precision(2); while((price== (price*1.00)) && (itemnum == (itemnum*1))) { while (out_stream3 << itemnum << price) { while (out_stream3.eof()) // reads file to end of file { out_stream3 << itemnum; out_stream3 << price; price++; curr_total= price++; out_stream3 << curr_total; cin.clear(); // allows more reading cin >> next; } return itemnum, price; } } in_stream4.setf(ios::fixed); in_stream4.setf(ios::showpoint); in_stream4.precision(2); while ( in_stream4.eof()) { in_stream4 >> itemnum >> price >> curr_total; cin.clear(); cin >> next; } out_stream5.setf(ios::fixed); out_stream5.setf(ios::showpoint); out_stream5.precision(2); out_stream5 <<setw(5)<< " itemnum " <<setw(5)<<" price "<<setw(5)<<" curr_total " <<endl; // sends items and prices to receipt.txt out_stream5 << setw(5) << itemnum << setw(5) <<price << setw(5)<< curr_total; // sends items and prices to receipt.txt out_stream5 << " You have a total of " << wrong++ << " errors " << endl; }

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  • .NET interview, code structure and the design

    - by j_lewis
    I have been given the below .NET question in an interview. I don’t know why I got low marks. Unfortunately I did not get a feedback. Question: The file hockey.csv contains the results from the Hockey Premier League. The columns ‘For’ and ‘Against’ contain the total number of goals scored for and against each team in that season (so Alabama scored 79 goals against opponents, and had 36 goals scored against them). Write a program to print the name of the team with the smallest difference in ‘for’ and ‘against’ goals. the structure of the hockey.csv looks like this (it is a valid csv file, but I just copied the values here to get an idea) Team - For - Against Alabama 79 36 Washinton 67 30 Indiana 87 45 Newcastle 74 52 Florida 53 37 New York 46 47 Sunderland 29 51 Lova 41 64 Nevada 33 63 Boston 30 64 Nevada 33 63 Boston 30 64 Solution: class Program { static void Main(string[] args) { string path = @"C:\Users\<valid csv path>"; var resultEvaluator = new ResultEvaluator(string.Format(@"{0}\{1}",path, "hockey.csv")); var team = resultEvaluator.GetTeamSmallestDifferenceForAgainst(); Console.WriteLine( string.Format("Smallest difference in ‘For’ and ‘Against’ goals > TEAM: {0}, GOALS DIF: {1}", team.Name, team.Difference )); Console.ReadLine(); } } public interface IResultEvaluator { Team GetTeamSmallestDifferenceForAgainst(); } public class ResultEvaluator : IResultEvaluator { private static DataTable leagueDataTable; private readonly string filePath; private readonly ICsvExtractor csvExtractor; public ResultEvaluator(string filePath){ this.filePath = filePath; csvExtractor = new CsvExtractor(); } private DataTable LeagueDataTable{ get { if (leagueDataTable == null) { leagueDataTable = csvExtractor.GetDataTable(filePath); } return leagueDataTable; } } public Team GetTeamSmallestDifferenceForAgainst() { var teams = GetTeams(); var lowestTeam = teams.OrderBy(p => p.Difference).First(); return lowestTeam; } private IEnumerable<Team> GetTeams() { IList<Team> list = new List<Team>(); foreach (DataRow row in LeagueDataTable.Rows) { var name = row["Team"].ToString(); var @for = int.Parse(row["For"].ToString()); var against = int.Parse(row["Against"].ToString()); var team = new Team(name, against, @for); list.Add(team); } return list; } } public interface ICsvExtractor { DataTable GetDataTable(string csvFilePath); } public class CsvExtractor : ICsvExtractor { public DataTable GetDataTable(string csvFilePath) { var lines = File.ReadAllLines(csvFilePath); string[] fields; fields = lines[0].Split(new[] { ',' }); int columns = fields.GetLength(0); var dt = new DataTable(); //always assume 1st row is the column name. for (int i = 0; i < columns; i++) { dt.Columns.Add(fields[i].ToLower(), typeof(string)); } DataRow row; for (int i = 1; i < lines.GetLength(0); i++) { fields = lines[i].Split(new char[] { ',' }); row = dt.NewRow(); for (int f = 0; f < columns; f++) row[f] = fields[f]; dt.Rows.Add(row); } return dt; } } public class Team { public Team(string name, int against, int @for) { Name = name; Against = against; For = @for; } public string Name { get; private set; } public int Against { get; private set; } public int For { get; private set; } public int Difference { get { return (For - Against); } } } Output: Smallest difference in for' andagainst' goals TEAM: Boston, GOALS DIF: -34 Can someone please review my code and see anything obviously wrong here? They were only interested in the structure/design of the code and whether the program produces the correct result (i.e lowest difference). Much appreciated. "P.S - Please correct me if the ".net-interview" tag is not the right tag to use"

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  • c windows connect() fails. error 10049

    - by Joshua Moore
    The following two pieces of code compile, but I get a connect() failed error on the client side. (compiled with MinGW). Client Code: // thanks to cs.baylor.edu/~donahoo/practical/CSockets/code/TCPEchoClientWS.c #include <stdio.h> #include <winsock.h> #include <stdlib.h> #define RCVBUFSIZE 32 // size of receive buffer void DieWithError(char *errorMessage); int main(int argc, char* argv[]) { int sock; struct sockaddr_in echoServAddr; unsigned short echoServPort; char *servIP; char *echoString; char echoBuffer[RCVBUFSIZE]; int echoStringLen; int bytesRcvd, totalBytesRcvd; WSAData wsaData; if((argc < 3) || (argc > 4)){ fprintf(stderr, "Usage: %s <Sever IP> <Echo Word> [<Echo Port>]\n", argv[0]); exit(1); } if (argc==4) echoServPort = atoi(argv[3]); // use given port if any else echoServPort = 7; // echo is well-known port for echo service if(WSAStartup(MAKEWORD(2, 0), &wsaData) != 0){ // load winsock 2.0 dll fprintf(stderr, "WSAStartup() failed"); exit(1); } // create reliable, stream socket using tcp if((sock=socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) DieWithError("socket() failed"); // construct the server address structure memset(&echoServAddr, 0, sizeof(echoServAddr)); echoServAddr.sin_family = AF_INET; echoServAddr.sin_addr.s_addr = inet_addr(servIP); // server IP address echoServAddr.sin_port = htons(echoServPort); // establish connection to the echo server if(connect(sock, (struct sockaddr*)&echoServAddr, sizeof(echoServAddr)) < 0) DieWithError("connect() failed"); echoStringLen = strlen(echoString); // determine input length // send the string, includeing the null terminator to the server if(send(sock, echoString, echoStringLen, 0)!= echoStringLen) DieWithError("send() sent a different number of bytes than expected"); totalBytesRcvd = 0; printf("Received: "); // setup to print the echoed string while(totalBytesRcvd < echoStringLen){ // receive up to the buffer size (minus 1 to leave space for a null terminator) bytes from the sender if(bytesRcvd = recv(sock, echoBuffer, RCVBUFSIZE-1, 0) <= 0) DieWithError("recv() failed or connection closed prematurely"); totalBytesRcvd += bytesRcvd; // keep tally of total bytes echoBuffer[bytesRcvd] = '\0'; printf("%s", echoBuffer); // print the echo buffer } printf("\n"); closesocket(sock); WSACleanup(); exit(0); } void DieWithError(char *errorMessage) { fprintf(stderr, "%s: %d\n", errorMessage, WSAGetLastError()); exit(1); } Server Code: // thanks cs.baylor.edu/~donahoo/practical/CSockets/code/TCPEchoServerWS.c #include <stdio.h> #include <winsock.h> #include <stdlib.h> #define MAXPENDING 5 // maximum outstanding connection requests #define RCVBUFSIZE 1000 void DieWithError(char *errorMessage); void HandleTCPClient(int clntSocket); // tcp client handling function int main(int argc, char **argv) { int serverSock; int clientSock; struct sockaddr_in echoServerAddr; struct sockaddr_in echoClientAddr; unsigned short echoServerPort; int clientLen; // length of client address data structure WSAData wsaData; if (argc!=2){ fprintf(stderr, "Usage: %s <Server Port>\n", argv[0]); exit(1); } echoServerPort = atoi(argv[1]); if(WSAStartup(MAKEWORD(2, 0), &wsaData)!=0){ fprintf(stderr, "WSAStartup() failed"); exit(1); } // create socket for incoming connections if((serverSock=socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0) DieWithError("socket() failed"); // construct local address structure memset(&echoServerAddr, 0, sizeof(echoServerAddr)); echoServerAddr.sin_family = AF_INET; echoServerAddr.sin_addr.s_addr = htonl(INADDR_ANY); // any incoming interface echoServerAddr.sin_port = htons(echoServerPort); // local port // bind to the local address if(bind(serverSock, (struct sockaddr*)&echoServerAddr, sizeof(echoServerAddr) )<0) DieWithError("bind() failed"); // mark the socket so it will listen for incoming connections if(listen(serverSock, MAXPENDING)<0) DieWithError("listen() failed"); for (;;){ // run forever // set the size of the in-out parameter clientLen = sizeof(echoClientAddr); // wait for a client to connect if((clientSock = accept(serverSock, (struct sockaddr*)&echoClientAddr, &clientLen)) < 0) DieWithError("accept() failed"); // clientSock is connected to a client printf("Handling client %s\n", inet_ntoa(echoClientAddr.sin_addr)); HandleTCPClient(clientSock); } // NOT REACHED } void DieWithError(char *errorMessage) { fprintf(stderr, "%s: %d\n", errorMessage, WSAGetLastError()); exit(1); } void HandleTCPClient(int clientSocket) { char echoBuffer[RCVBUFSIZE]; // buffer for echostring int recvMsgSize; // size of received message // receive message from client if((recvMsgSize = recv(clientSocket, echoBuffer, RCVBUFSIZE, 0) <0)) DieWithError("recv() failed"); // send received string and receive again until end of transmission while(recvMsgSize > 0){ // echo message back to client if(send(clientSocket, echoBuffer, recvMsgSize, 0)!=recvMsgSize) DieWithError("send() failed"); // see if there's more data to receive if((recvMsgSize = recv(clientSocket, echoBuffer, RCVBUFSIZE, 0)) <0) DieWithError("recv() failed"); } closesocket(clientSocket); // close client socket } How can I fix this?

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