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• null reference exception in the code

  - by LifeH2O

  I am getting NullReferenceException error on "_attr.Append(xmlNode.Attributes["name"]);". namespace SMAS { class Profiles { private XmlTextReader _profReader; private XmlDocument _profDoc; private const string Url = "http://localhost/teamprofiles.xml"; private const string XPath = "/teams/team-profile"; public XmlNodeList Teams{ get; private set; } private XmlAttributeCollection _attr; public ArrayList Team { get; private set; } public void GetTeams() { _profReader = new XmlTextReader(Url); _profDoc = new XmlDocument(); _profDoc.Load(_profReader); Teams = _profDoc.SelectNodes(XPath); foreach (XmlNode xmlNode in Teams) { _attr.Append(xmlNode.Attributes["name"]); } } } } the teamprofiles.xml file looks like <teams> <team-profile name="Australia"> <stats type="Test"> <span>1877-2010</span> <matches>721</matches> <won>339</won> <lost>186</lost> <tied>2</tied> <draw>194</draw> <percentage>47.01</percentage> </stats> <stats type="Twenty20"> <span>2005-2010</span> <matches>32</matches> <won>18</won> <lost>12</lost> <tied>1</tied> <draw>1</draw> <percentage>59.67</percentage> </stats> </team-profile> <team-profile name="Bangladesh"> <stats type="Test"> <span>2000-2010</span> <matches>66</matches> <won>3</won> <lost>57</lost> <tied>0</tied> <draw>6</draw> <percentage>4.54</percentage> </stats> </team-profile> </teams> I am trying to extract names of all teams in an ArrayList. Then i'll extract all stats of all teams and display them in my application. Can you please help me about that null reference exception?

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• iPad issue with a modal view: modal view label null after view controller is created

  - by iPhone Guy

  This is a weird issue. I have created a view controller with a nib file for my modal view. On that view there is a label, number and text view. When I create the view from the source view, I tried to set the label, but it shows that the label is null (0x0). Kinda weird... Any suggestions? Now lets look at the code (I put all of the code here because that shows more than I can just explain): The modal view controller - in IB the label is connected to the UILabel object: @implementation ModalViewController @synthesize delegate; @synthesize goalLabel, goalText, goalNumber; // Done button clicked - (void)dismissView:(id)sender { // Call the delegate to dismiss the modal view if ([delegate respondsToSelector:@selector(didDismissModalView: newText:)]) { NSNumber *tmpNum = goalNumber; NSString *tmpString = [[NSString alloc] initWithString:[goalText text]]; [delegate didDismissModalView:tmpNum newText:tmpString]; [tmpNum release]; [tmpString release]; } } - (void)cancelView:(id)sender { // Call the delegate to dismiss the modal view if ([delegate respondsToSelector:@selector(didCancelModalView)]) [delegate didCancelModalView]; } -(void) setLabelText:(NSString *)text { [goalLabel setText:text]; } /* // The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) { // Custom initialization } return self; } */ -(void) viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; // bring up the keyboard.... [goalText becomeFirstResponder]; } // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; // set the current goal number to -1 so we know none was set goalNumber = [NSNumber numberWithInt: -1]; // Override the right button to show a Done button // which is used to dismiss the modal view self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissView:)] autorelease]; // and now for the cancel button self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancelView:)] autorelease]; self.navigationItem.title = @"Add/Update Goals"; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Overriden to allow any orientation. return YES; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)dealloc { [super dealloc]; } @end And here is where the view controller is created, variables set, and displayed: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // put a checkmark.... UITableViewCell *tmpCell = [tableView cellForRowAtIndexPath:indexPath]; [tmpCell setAccessoryType:UITableViewCellAccessoryCheckmark]; // this is where the popup is gonna popup! // ===> HEre We Go! // Create the modal view controller ModalViewController *mdvc = [[ModalViewController alloc] initWithNibName:@"ModalDetailView" bundle:nil]; // We are the delegate responsible for dismissing the modal view [mdvc setDelegate:self]; // Create a Navigation controller UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:mdvc]; // set the modal view type navController.modalPresentationStyle = UIModalPresentationFormSheet; // set the label for all of the goals.... if (indexPath.section == 0 && indexPath.row == 0) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 1:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:1]]; } if (indexPath.section == 0 && indexPath.row == 1) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 2:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:2]]; } if (indexPath.section == 0 && indexPath.row == 2) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 3:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:3]]; } if (indexPath.section == 0 && indexPath.row == 3) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Long Term Goal 4:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:4]]; } if (indexPath.section == 1 && indexPath.row == 0) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 1:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:5]]; } if (indexPath.section == 1 && indexPath.row == 1) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 2:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:6]]; } if (indexPath.section == 1 && indexPath.row == 2) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 3:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:7]]; } if (indexPath.section == 1 && indexPath.row == 3) { [mdvc setLabelText:[[[NSString alloc] initWithString:@"Short Term Goal 4:"] autorelease]]; [mdvc setGoalNumber:[NSNumber numberWithInt:8]]; } // show the navigation controller modally [self presentModalViewController:navController animated:YES]; // Clean up resources [navController release]; [mdvc release]; // ==> Ah... we are done... }

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• CUDA linking error - Visual Express 2008 - nvcc fatal due to (null) configuration file

  - by Josh

  Hi, I've been searching extensively for a possible solution to my error for the past 2 weeks. I have successfully installed the Cuda 64-bit compiler (tools) and SDK as well as the 64-bit version of Visual Studio Express 2008 and Windows 7 SDK with Framework 3.5. I'm using windows XP 64-bit. I have confirmed that VSE is able to compile in 64-bit as I have all of the 64-bit options available to me using the steps on the following website: (since Visual Express does not inherently include the 64-bit packages) http://jenshuebel.wordpress.com/2009/02/12/visual-c-2008-express-edition-and-64-bit-targets/ I have confirmed the 64-bit compile ability since the "x64" is available from the pull-down menu under "Tools-Options-VC++ Directories" and compiling in 64-bit does not result in the entire project being "skipped". I have included all the needed directories for 64-bit cuda tools, 64 SDK and Visual Express (\VC\bin\amd64). Here's the error message I receive when trying to compile in 64-bit: 1>------ Build started: Project: New, Configuration: Release x64 ------ 1>Compiling with CUDA Build Rule... 1>"C:\CUDA\bin64\nvcc.exe" -arch sm_10 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin" -Xcompiler "/EHsc /W3 /nologo /O2 /Zi /MT " -maxrregcount=32 --compile -o "x64\Release\template.cu.obj" "c:\Documents and Settings\All Users\Application Data\NVIDIA Corporation\NVIDIA GPU Computing SDK\C\src\CUDA_Walkthrough_DeviceKernels\template.cu" 1>nvcc fatal : Visual Studio configuration file '(null)' could not be found for installation at 'C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin/../..' 1>Linking... 1>LINK : fatal error LNK1181: cannot open input file '.\x64\Release\template.cu.obj' 1>Build log was saved at "file://c:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\New\New\x64\Release\BuildLog.htm" 1>New - 1 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Here's the simple code I'm trying to compile/run in 64-bit: #include <stdlib.h> #include <stdio.h> #include <string.h> #include <math.h> #include <cuda.h> void mypause () { printf ( "Press [Enter] to continue . . ." ); fflush ( stdout ); getchar(); } __global__ void VecAdd1_Kernel(float* A, float* B, float* C, int N) { int i = blockDim.x*blockIdx.x+threadIdx.x; if (i<N) C[i] = A[i] + B[i]; //result should be a 16x1 array of 250s } __global__ void VecAdd2_Kernel(float* B, float* C, int N) { int i = blockDim.x*blockIdx.x+threadIdx.x; if (i<N) C[i] = C[i] + B[i]; //result should be a 16x1 array of 400s } int main() { int N = 16; float A[16];float B[16]; size_t size = N*sizeof(float); for(int i=0; i<N; i++) { A[i] = 100.0; B[i] = 150.0; } // Allocate input vectors h_A and h_B in host memory float* h_A = (float*)malloc(size); float* h_B = (float*)malloc(size); float* h_C = (float*)malloc(size); //Initialize Input Vectors memset(h_A,0,size);memset(h_B,0,size); h_A = A;h_B = B; printf("SUM = %f\n",A[1]+B[1]); //simple check for initialization //Allocate vectors in device memory float* d_A; cudaMalloc((void**)&d_A,size); float* d_B; cudaMalloc((void**)&d_B,size); float* d_C; cudaMalloc((void**)&d_C,size); //Copy vectors from host memory to device memory cudaMemcpy(d_A,h_A,size,cudaMemcpyHostToDevice); cudaMemcpy(d_B,h_B,size,cudaMemcpyHostToDevice); //Invoke kernel int threadsPerBlock = 256; int blocksPerGrid = (N+threadsPerBlock-1)/threadsPerBlock; VecAdd1(blocksPerGrid, threadsPerBlock,d_A,d_B,d_C,N); VecAdd2(blocksPerGrid, threadsPerBlock,d_B,d_C,N); //Copy results from device memory to host memory //h_C contains the result in host memory cudaMemcpy(h_C,d_C,size,cudaMemcpyDeviceToHost); for(int i=0; i<N; i++) //output result from the kernel "VecAdd" { printf("%f ", h_C[i] ); printf("\n"); } printf("\n"); cudaFree(d_A); cudaFree(d_B); cudaFree(d_C); free(h_A); free(h_B); free(h_C); mypause(); return 0; }

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• Getting null value after adding objects to customClass

  - by Brian Stacks

  Ok here's my code first viewController.h @interface ViewController : UIViewController<UICollectionViewDataSource,UICollectionViewDelegate> { NSMutableArray *twitterObjects; } @property (strong, nonatomic) IBOutlet UICollectionView *myCollectionView; Here is my viewController.m // // ViewController.m // MDF2p2 // // Created by Brian Stacks on 6/5/14. // Copyright (c) 2014 Brian Stacks. All rights reserved. // #import "ViewController.h" // add accounts framework to code #import <Accounts/Accounts.h> // add social frameworks #import <Social/Social.h> #import "TwitterCustomObject.h" #import "CustomCell.h" #import "DetailViewController.h" @interface ViewController () @end @implementation ViewController -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { //CustomCell * cell = (CustomCell*)sender; //NSIndexPath *indexPath = [_myCollectionView indexPathForCell:cell]; // setting an id for view controller DetailViewController *detailViewcontroller = segue.destinationViewController; //TwitterCustomObject *newCustomClass = [twitterObjects objectAtIndex:indexPath.row]; if (detailViewcontroller != nil) { // setting the custom customClass object //detailViewcontroller.myNewCurrentClass = newCustomClass; } } - (void)viewDidLoad { twitterObjects = [[NSMutableArray alloc]init]; [super viewDidLoad]; [self twitterAPIcall]; // Do any additional setup after loading the view, typically from a nib. } - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { return 100; } - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { //UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"myCell" forIndexPath:indexPath]; // initiate celli CustomCell * cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"myCell" forIndexPath:indexPath]; // add objects to cell if (cell != nil) { //TwitterCustomObject *newCustomClass = [twitterObjects objectAtIndex:indexPath.row]; //[cell refreshCell:newCustomClass.userName userImage:newCustomClass.userImage]; [cell refreshCell:@"Brian" userImage:[UIImage imageNamed:@"love.jpg"]]; } return cell; } -(void)twitterAPIcall { //create an instance of the account store from account frameworks ACAccountStore *accountStore = [[ACAccountStore alloc]init]; // make sure we have a valid object if (accountStore != nil) { // get the account type ex: Twitter, FAcebook info ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter]; // make sure we have a valid object if (accountType != nil) { // give access to the account iformation [accountStore requestAccessToAccountsWithType:accountType options:nil completion:^(BOOL granted, NSError *error) { if (granted) { //^^^success user gave access to account information // get the info of accounts NSArray *twitterAccounts = [accountStore accountsWithAccountType:accountType]; // make sure we have a valid object if (twitterAccounts != nil) { //NSLog(@"Accounts: %@",twitterAccounts); // get the current account information ACAccount *currentAccount = [twitterAccounts objectAtIndex:0]; // make sure we have a valid object if (currentAccount != nil) { //string from twitter api NSString *requestString = @"https://api.twitter.com/1.1/friends/list.json"; // request the data from the request screen call SLRequest *myRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodGET URL:[NSURL URLWithString:requestString] parameters:nil]; // must authenticate request [myRequest setAccount:currentAccount]; // perform the request named myRequest [myRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) { // check to make sure there are no errors and we have a good http:request of 200 if ((error == nil) && ([urlResponse statusCode] == 200)) { // make array of dictionaries from the twitter api data using NSJSONSerialization NSArray *twitterFeed = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:nil]; NSMutableArray *nameArray = [twitterFeed valueForKeyPath:@"users"]; // for loop that loops through all the post for (NSInteger i =0; i<[twitterFeed count]; i++) { NSString *nameString = [nameArray valueForKeyPath:@"name"]; NSString *imageString = [nameArray valueForKeyPath:@"profile_image_url"]; NSLog(@"Name feed: %@",nameString); NSLog(@"Image feed: %@",imageString); // get data into my mutable array TwitterCustomObject *twitterInfo = [self createPostFromArray:[nameArray objectAtIndex:i]]; //NSLog(@"Image feed: %@",twitterInfo); if (twitterInfo != nil) { [twitterObjects addObject:twitterInfo]; } } } }]; } } } else { // the user didn't give access UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Warning" message:@"This app will only work with twitter accounts being allowed!." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [alert performSelectorOnMainThread:@selector(show) withObject:nil waitUntilDone:FALSE]; } }]; } } } -(TwitterCustomObject*)createPostFromArray:(NSArray*)postArray { // create strings to catch the data in NSArray *userArray = [postArray valueForKeyPath:@"users"]; NSString *myUserName = [userArray valueForKeyPath:@"name"]; NSString *twitImageURL = [userArray valueForKeyPath:@"profile_image_url"]; UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:twitImageURL]]]; // initiate object to put the data in TwitterCustomObject *twitterData = [[TwitterCustomObject alloc]initWithPostInfo:myUserName myImage:image]; NSLog(@"Name: %@",myUserName); return twitterData; } -(IBAction)done:(UIStoryboardSegue*)segue { } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end Here is my customObject class TwitterCustomClass.h // // TwitterCustomObject.h // MDF2p2 // // Created by Brian Stacks on 6/5/14. // Copyright (c) 2014 Brian Stacks. All rights reserved. // #import <Foundation/Foundation.h> @interface TwitterCustomObject : NSObject { } @property (nonatomic, readonly) NSString *userName; @property (nonatomic, readonly) UIImage *userImage; -(id)initWithPostInfo:(NSString*)screenName myImage:(UIImage*)myImage; @end TwitterCustomClass.m // // TwitterCustomObject.m // MDF2p2 // // Created by Brian Stacks on 6/5/14. // Copyright (c) 2014 Brian Stacks. All rights reserved. // #import "TwitterCustomObject.h" @implementation TwitterCustomObject -(id)initWithPostInfo:(NSString*)screenName myImage:(UIImage*)myImage { // initialize as object if (self = [super init]) { // use the data to be passed back and forth to the tableview _userName = [screenName copy]; _userImage = [myImage copy]; } return self; } @end The problem is I get the values in the method twitterAPIcall, I can get the names and image values or strings from the values. But in the (TwitterCustomObject*)createPostFromArray:(NSArray*)postArray method all values are coming up as null.I thought it got added with this line of code in the twitterAPIcall method [twitterObjects addObject:twitterInfo];?

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• null pointer exception at org.hibernate.tuple.AbstractEntityTuplizer.createProxy

  - by saurabh

  I am using hibernate 3.2 with struts 1.2 framework I got this exception when i m trying to load the object I am using this code to load the object public Currentprofile findById(java.lang.String id) { log.debug("getting Currentprofile instance with id: " + id); try { Currentprofile instance = (Currentprofile) getSession().get( "com.hibermappings.Currentprofile", id); return instance; } catch (RuntimeException re) { log.error("get failed", re); throw re; } } my hbm file is this <one-to-one name="referenceDb" lazy="proxy" class="com.hibermappings.ReferenceDb" cascade="all" constrained="false" /> <one-to-one name="registration" lazy="proxy" class="com.hibermappings.Registration" cascade="all" constrained="false" /> <one-to-one name="jobseekerpackagedetails" lazy="proxy" class="com.hibermappings.Jobseekerpackagedetails" cascade="all" constrained="false" /> <property name="keyWords" type="java.lang.String"> <column name="keyWords" length="5000" /> </property> <property name="totalExp" type="java.lang.String"> <column name="totalExp" length="100" /> </property> <property name="hqualification" type="java.lang.String"> <column name="hQualification" length="100" /> </property> <property name="preferedLocation" type="java.lang.String"> <column name="preferedLocation" length="100" /> </property> <property name="functionalArea" type="java.lang.String"> <column name="functionalArea" length="1000" /> </property> <property name="expSalary" type="java.lang.String"> <column name="expSalary" length="100" /> </property> <property name="designation" type="java.lang.String"> <column name="designation" length="100" /> </property> <property name="resumeTitle" type="java.lang.String"> <column name="resumeTitle" length="500" /> </property> <property name="profileDetails" type="java.lang.String"> <column name="profileDetails" length="65535" /> </property> <property name="requiredProfile" type="java.lang.String"> <column name="requiredProfile" length="65535" /> </property> <property name="activatedOn" type="java.util.Date"> <column name="activatedOn" length="0" /> </property> <set name="resumes" inverse="true" cascade="save-update"> <key> <column name="jobseekerId" length="50" /> </key> <one-to-many class="com.hibermappings.Resume" /> </set> </class> the same code runs well when I m using in a simple java class within main method .. full stack trace of exception is java.lang.NullPointerException at org.hibernate.tuple.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:372) at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:3121) at org.hibernate.event.def.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:232) at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:173) at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87) at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:862) at org.hibernate.impl.SessionImpl.load(SessionImpl.java:781) at org.hibernate.impl.SessionImpl.load(SessionImpl.java:774) at com.DAOs.CurrentprofileDAO.getLoad(CurrentprofileDAO.java:71) at com.action.JobSekeerManage.viewProfile(JobSekeerManage.java:447) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270) at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at com.filter.HibernateFilter.doFilter(HibernateFilter.java:24) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:731) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) Error::null

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• JasperReport Issue using with struts2 - getting null in final PDF file

  - by Nirmal

  Hello, i am writing my jasper report problem with struts2. Following is the code that i am trying to execute : struts.xml contains : <action name="myJasperTest1" class="temp.JasperAction1"> <result name="success" type="jasper"> <param name="location">/jasper/our_compiled_template.jasper</param> <param name="dataSource">myList</param> <param name="format">PDF</param> </result> </action> My JasperAction1 contains : import java.util.ArrayList; import java.util.List; import com.sufalam.business.model.util.LegacyJasperInputStream; import net.sf.jasperreports.engine.JasperCompileManager; import com.opensymphony.xwork2.ActionSupport; import com.sufalam.business.finance.model.bean.Account; import java.io.FileInputStream; import net.sf.jasperreports.engine.design.JasperDesign; import net.sf.jasperreports.engine.xml.JRXmlLoader; public class JasperAction1 extends ActionSupport { /** List to use as our JasperReports dataSource. */ private List<Account> myList; public String execute() throws Exception { // Create some imaginary persons. Account a1 = new Account(); Account a2 = new Account(); a1.setId(77); a1.setName("aaa"); a2.setId(88); a2.setName("bbb"); // Store people in our dataSource list (normally would come from database). myList = new ArrayList<Account>(); myList.add(a1); myList.add(a2); // Normally we would provide a pre-compiled .jrxml file // or check to make sure we don't compile on every request. try { JasperDesign design = JRXmlLoader.load( new LegacyJasperInputStream(new FileInputStream("F://backup//backup 26-5(final acegi)//SufalamERP//build//web//jasper//report2.jrxml"))); JasperCompileManager.compileReportToFile(design,"F://backup//backup 26-5(final acegi)//SufalamERP//build//web//jasper//our_compiled_template1.jasper"); } catch (Exception e) { e.printStackTrace(); return ERROR; } return SUCCESS; } public List<Account> getMyList() { return myList; } } I am using ireport plugin of Netbeans for generation .jrxml file. After Designing my page using IReport wizard my our_jasper_template.jrxml file contains following code : <?xml version="1.0" encoding="UTF-8"?> <jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="null" pageWidth="595" pageHeight="842" columnWidth="535" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20"> <queryString language="SQL"> <![CDATA[SELECT account_master."name" AS account_master_name, account_master."id" AS account_master_id FROM "public"."account_master" account_master]]> </queryString> <field name="account_master_name" class="java.lang.String"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <field name="account_master_id" class="java.lang.Integer"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <background> <band/> </background> <title> <band height="58"> <line> <reportElement x="0" y="8" width="555" height="1"/> </line> <line> <reportElement positionType="FixRelativeToBottom" x="0" y="51" width="555" height="1"/> </line> <staticText> <reportElement x="65" y="13" width="424" height="35"/> <textElement textAlignment="Center"> <font size="26" isBold="true"/> </textElement> <text><![CDATA[Classic template]]></text> </staticText> </band> </title> <pageHeader> <band/> </pageHeader> <columnHeader> <band/> </columnHeader> <detail> <band height="40"> <staticText> <reportElement x="0" y="0" width="139" height="20"/> <textElement> <font size="12"/> </textElement> <text><![CDATA[account_master_name]]></text> </staticText> <textField> <reportElement x="139" y="0" width="416" height="20"/> <textElement> <font size="12"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA[$F{account_master_name}]]></textFieldExpression> </textField> <staticText> <reportElement x="0" y="20" width="139" height="20"/> <textElement> <font size="12"/> </textElement> <text><![CDATA[account_master_id]]></text> </staticText> <textField> <reportElement x="139" y="20" width="416" height="20"/> <textElement> <font size="12"/> </textElement> <textFieldExpression class="java.lang.Integer"><![CDATA[$F{account_master_id}]]></textFieldExpression> </textField> </band> </detail> <columnFooter> <band/> </columnFooter> <pageFooter> <band height="26"> <textField evaluationTime="Report" pattern="" isBlankWhenNull="false"> <reportElement key="textField" x="516" y="6" width="36" height="19" forecolor="#000000" backcolor="#FFFFFF"/> <box> <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> </box> <textElement> <font size="10"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA["" + $V{PAGE_NUMBER}]]></textFieldExpression> </textField> <textField pattern="" isBlankWhenNull="false"> <reportElement key="textField" x="342" y="6" width="170" height="19" forecolor="#000000" backcolor="#FFFFFF"/> <box> <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> </box> <textElement textAlignment="Right"> <font size="10"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA["Page " + $V{PAGE_NUMBER} + " of "]]></textFieldExpression> </textField> <textField pattern="" isBlankWhenNull="false"> <reportElement key="textField" x="1" y="6" width="209" height="19" forecolor="#000000" backcolor="#FFFFFF"/> <box> <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> </box> <textElement> <font size="10"/> </textElement> <textFieldExpression class="java.util.Date"><![CDATA[new Date()]]></textFieldExpression> </textField> </band> </pageFooter> <summary> <band/> </summary> </jasperReport> Now the problem i am facing is when i execute this action class it gives me following output as pdf format :

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• Jquery Cycle Plugin Question - turning off relative links to photos so it goes to a URL

  - by alpdog14

  I am using Jquery Cycle Plugin and it has a side panel that highlights as the photos change and currently when I click on the text the associated photo pulls up then I have to click on the photo to go to the URL but I would like the text itself to link to the URL. I have looked at the fn.cycle.defaults but not sure what to change and I tried a few things but nothing works. If anyone can help me figure this out it would be most helpful. Here are the fn.cycle.defaults: fx: 'fade', // one of: fade, shuffle, zoom, scrollLeft, etc timeout: 4000, // milliseconds between slide transitions (0 to disable auto advance) continuous: 0, // true to start next transition immediately after current one completes speed: 1000, // speed of the transition (any valid fx speed value) speedIn: null, // speed of the 'in' transition speedOut: null, // speed of the 'out' transition next: null, // id of element to use as click trigger for next slide prev: null, // id of element to use as click trigger for previous slide prevNextClick: null, // callback fn for prev/next clicks: function(isNext, zeroBasedSlideIndex, slideElement) pager: null, // id of element to use as pager container pagerClick: null, // callback fn for pager clicks: function(zeroBasedSlideIndex, slideElement) pagerEvent: null, // event which drives the pager navigation pagerAnchorBuilder: null, // callback fn for building anchor links before: null, // transition callback (scope set to element to be shown) after: null, // transition callback (scope set to element that was shown) end: null, // callback invoked when the slideshow terminates (use with autostop or nowrap options) easing: null, // easing method for both in and out transitions easeIn: null, // easing for "in" transition easeOut: null, // easing for "out" transition shuffle: null, // coords for shuffle animation, ex: { top:15, left: 200 } animIn: null, // properties that define how the slide animates in animOut: null, // properties that define how the slide animates out cssBefore: null, // properties that define the initial state of the slide before transitioning in cssAfter: null, // properties that defined the state of the slide after transitioning out fxFn: null, // function used to control the transition height: 'auto', // container height startingSlide: 0, // zero-based index of the first slide to be displayed sync: 1, // true if in/out transitions should occur simultaneously random: 0, // true for random, false for sequence (not applicable to shuffle fx) fit: 0, // force slides to fit container pause: true, // true to enable "pause on hover" autostop: 0, // true to end slideshow after X transitions (where X == slide count) autostopCount: 0, // number of transitions (optionally used with autostop to define X) delay: 0, // additional delay (in ms) for first transition (hint: can be negative) slideExpr: null, // expression for selecting slides (if something other than all children is required) cleartype: 0, // true if clearType corrections should be applied (for IE) nowrap: 0 // true to prevent slideshow from wrapping }; I have tried changing the pageClick and pagerEvent but nothing seems to be working. Please help!!!

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• Function inserted not all records

  - by user1799459

  I wrote the following code by data transfer from Access to Firebird def FirebirdDatetime(dt): return '\'%s.%s.%s\'' % (str(dt.day).rjust(2,'0'), str(dt.month).rjust(2,'0'), str(dt.year).rjust(4,'0')) def SelectFromAccessTable(tablename): return 'select * from [' + tablename+']' def InsertToFirebirdTable(tablename, row): values='' i=0 for elem in row: i+=1 #print type(elem) if type(elem) == int: temp = str(elem) elif (type(elem) == str) or (type(elem)==unicode): temp = '\'%s\'' % (elem,) elif type(elem) == datetime.datetime: temp =FirebirdDatetime(elem) elif type(elem) == decimal.Decimal: temp = str(elem) elif elem==None: temp='null' if (i<len(row)): values+=temp+', ' else: values+=temp return 'insert into '+tablename+' values ('+values+')' def AccessToFirebird(accesstablename, firebirdtablename, accesscursor, firebirdcursor): SelectSql=SelectFromAccessTable(accesstablename) for row in accesscursor.execute(SelectSql): InsertSql=InsertToFirebirdTable(firebirdtablename, row) InsertSql=InsertSql print InsertSql firebirdcursor.execute(InsertSql) In the main module there is an AccessToFirebird function call conAcc = pyodbc.connect('DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=D:\ThirdTask\Northwind.accdb') SqlAccess=conAcc.cursor(); conn.begin() cur=conn.cursor() sql.AccessToFirebird('Customers', 'CLIENTS', SqlAccess, cur) conn.commit() conn.begin() cur=conn.cursor() sql.AccessToFirebird('??????????', 'EMPLOYEES', SqlAccess, cur) sql.AccessToFirebird('????', 'ROLES', SqlAccess, cur) sql.AccessToFirebird('???? ???????????', 'EMPLOYEES_ROLES', SqlAccess, cur) sql.AccessToFirebird('????????', 'DELIVERY', SqlAccess, cur) sql.AccessToFirebird('??????????', 'SUPPLIERS', SqlAccess, cur) sql.AccessToFirebird('????????? ?????? ???????', 'TAX_STATUS_OF_ORDERS', SqlAccess, cur) sql.AccessToFirebird('????????? ???????? ? ??????', 'STATE_ORDER_DETAILS', SqlAccess, cur) sql.AccessToFirebird('????????? ???????', 'CONDITION_OF_ORDERS', SqlAccess, cur) sql.AccessToFirebird('??????', 'ORDERS', SqlAccess, cur) sql.AccessToFirebird('?????', 'BILLS', SqlAccess, cur) sql.AccessToFirebird('????????? ?????? ?? ????????????', 'STATUS_PURCHASE_ORDER', SqlAccess, cur) sql.AccessToFirebird('?????? ?? ????????????', 'ORDERS_FOR_ACQUISITION', SqlAccess, cur) sql.AccessToFirebird('???????? ? ?????? ?? ????????????', 'INFORMPURCHASEORDER', SqlAccess, cur) sql.AccessToFirebird('??????', 'PRODUCTS', SqlAccess, cur) conn.commit() conAcc.commit() conn.close() conAcc.close() But as a result, not all records have been inserted into the table Products (Table Goods - Northwind database), for example, does not work request insert into PRODUCTS values ('4', 1, 'NWTB-1', '?????????? ???', null, 13.5000, 18.0000, 10, 40, '10 ??????? ?? 20 ?????????', '10 ??????? ?? 20 ?????????', 10, '???????', '') In ibexpert to this request message issued can't format message 13:587 -- message file C:\Windows\firebird.msg not found. conversion error from string "10 ?????????±???? ???? 20 ???°???µ?‚????????". Worked only requests insert into PRODUCTS values ('1', 82, 'NWTC-82', '???????', null, 2.0000, 4.0000, 20, 100, null, null, null, '????', '') insert into PRODUCTS values ('9', 83, 'NWTCS-83', '???????????? ?????', null, 0.5000, 1.8000, 30, 200, null, null, null, '????? ? ???????', '') insert into PRODUCTS values ('1', 97, 'NWTC-82', '???????', null, 3.0000, 5.0000, 50, 200, null, null, null, '????', '') insert into PRODUCTS values ('6', 98, 'NWTSO-98', '??????? ???', null, 1.0000, 1.8900, 100, 200, null, null, null, '????', '') insert into PRODUCTS values ('6', 99, 'NWTSO-99', '??????? ??????', null, 1.0000, 1.9500, 100, 200, null, null, null, '????', '') other records were not inserted.

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• sorting two tables (full join)

  - by Ruslan

  i'm joining tables like: select * from tableA a full join tableB b on a.id = b.id But the output should be: row without null fields row with null fields in tableB row with null fields in tableA Like: a.id a.name b.id b.name 5 Peter 5 Jones 2 Steven 2 Pareker 6 Paul null null 4 Ivan null null null null 1 Smith null null 3 Parker

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• Trying to Understand PLSQL Function

  - by Rachel

  I am new to PLSQL and I have this huge plsql function which am trying to understand and am having hard time understanding the flow and so I would really appreciate if anyone can run me through the big pieces so that I can understand the flow. Guidance would be highly appreciated. FUNCTION monthly_analysis( REGION_ID_P VARCHAR2, COUNTRY_ID_P VARCHAR2 , SUB_REGION_ID_P VARCHAR2 , CUSTOMER_TYPE_ID_P VARCHAR2 , RECEIVED_FROM_DATE_P VARCHAR2 , RECEIVED_TO_DATE_P VARCHAR2, CUSTOMER_ID_P VARCHAR2 , PRIORITY_ID_P VARCHAR2, WORK_GROUP_ID_P VARCHAR2, CITY_ID_P VARCHAR2, USER_ID_P VARCHAR2 ) RETURN AP_ANALYSIS_REPORT_TAB_TYPE pipelined IS with_sql LONG; e_sql LONG; where_sql LONG; group_by_sql LONG; curent_date Date; v_row AP_ANALYSIS_REPORT_ROW_TYPE := AP_ANALYSIS_REPORT_ROW_TYPE( NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ); TYPE rectyp IS REF CURSOR; -- define weak REF CURSOR type rrc_rectyp rectyp; TYPE recordvar IS RECORD( MONTHS VARCHAR2(100), ORDERBY_MONTHS VARCHAR2(100), REQ_RECEIVED NUMBER(9,2), REQ_STILL_OPEN NUMBER(9,2), REQ_AWAIT_ACCEPTANCE NUMBER(9,2), REQ_WITH_ATT NUMBER(9,2), REQ_CLOSED NUMBER(9,2), REQ_CANCELLED NUMBER(9,2) ); res_rec recordvar; BEGIN select sysdate +substr(to_char(systimestamp, 'tzr'),3,1)/24 into curent_date from dual; where_sql := ' AND 1=1 '; IF COUNTRY_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.country_id ='|| COUNTRY_ID_P; END IF; IF SUB_REGION_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.SUB_REGION_ID ='|| SUB_REGION_ID_P; END IF; IF CUSTOMER_TYPE_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.CUSTOMER_TYPE_ID ='|| CUSTOMER_TYPE_ID_P; END IF; IF RECEIVED_FROM_DATE_P IS NOT NULL THEN where_sql := where_sql||' AND convert_time(received_date, ''GMT'', ''GMT'') >= convert_time(trunc(to_date('''||RECEIVED_FROM_DATE_P||''',''dd/mm/yyyy HH24:MI:SS'')), ''Europe/Paris'', ''GMT'')'; END IF; IF RECEIVED_TO_DATE_P IS NOT NULL THEN where_sql := where_sql||' AND convert_time(received_date, ''GMT'', ''GMT'') <= convert_time(trunc(to_date('''||RECEIVED_TO_DATE_P||''',''dd/mm/yyyy HH24:MI:SS'')), ''Europe/Paris'', ''GMT'')'; END IF; IF CUSTOMER_ID_P IS NOT NULL THEN where_sql := where_sql||' AND x.CUSTOMER_ID in(select CUSTOMER_ID from lk_customer where upper(CUSTOMER_NAME) like upper('''||CUSTOMER_ID_P||'%''))'; END IF; IF PRIORITY_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.PRIORITY_ID ='|| PRIORITY_ID_P; END IF; IF WORK_GROUP_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.WORKGROUP_ID ='|| WORK_GROUP_ID_P; END IF; IF CITY_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.CITY_ID = ' || CITY_ID_P; END IF; group_by_sql := ' group by to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''mm/YYYY''),to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''yyyy/mm'')'; with_sql := 'with b AS (select cep_work_item_no from ap_main where req_accept_date is null and ecep_ap_utils.f_business_days(received_date,'''||curent_date||''')>30), e AS (select cep_work_item_no from ap_main where status_id=1 and req_accept_date is not null and stage_ID != 10 and stage_Id !=4 and ecep_ap_utils.f_business_days(received_date,'''||curent_date||''')>30), --f AS (select cep_work_item_no from ap_main where received_date is not null), m AS (select cep_work_item_no from ap_main where received_date is not null and status_id=1), n AS (select cep_work_item_no from ap_main where status_id=2), o AS (select cep_work_item_no from ap_main where status_id=3)'; --e_sql := ' SELECT MONTHS, REQ_RECEIVED,REQ_STILL_OPEN, REQ_AWAIT_ACCEPTANCE, REQ_WITH_ATT from ('; --e_sql := with_sql; e_sql := with_sql||' select to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''mm/YYYY'') MONTHS, to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''yyyy/mm'') ORDERBY_MONTHS, count(x.cep_work_item_no) REQ_RECEIVED, count(m.cep_work_item_no) REQ_STILL_OPEN,count(b.cep_work_item_no) REQ_AWAIT_ACCEPTANCE,count(e.cep_work_item_no) REQ_WITH_ATT, count(n.cep_work_item_no) REQ_CLOSED, count(o.cep_work_item_no) REQ_CANCELLED from emea_main x,m,b,e,n,o where x.cep_work_item_no=m.cep_work_item_no(+) and x.cep_work_item_no = b.cep_work_item_no(+) and x.cep_work_item_no=e.cep_work_item_no(+) and x.cep_work_item_no=n.cep_work_item_no(+) and x.cep_work_item_no=o.cep_work_item_no(+) and x.received_date is not null'; e_sql := e_sql|| where_sql||group_by_sql; OPEN rrc_rectyp FOR e_sql; LOOP FETCH rrc_rectyp INTO res_rec; EXIT WHEN rrc_rectyp%NOTFOUND; v_row.MONTHS := res_rec.MONTHS ; v_row.ORDERBY_MONTHS := res_rec.ORDERBY_MONTHS ; v_row.REQ_RECEIVED := res_rec.REQ_RECEIVED; v_row.REQ_STILL_OPEN := res_rec.REQ_STILL_OPEN; v_row.REQ_AWAIT_ACCEPTANCE := res_rec.REQ_AWAIT_ACCEPTANCE; v_row.REQ_WITH_ATT := res_rec.REQ_WITH_ATT; v_row.REQ_CLOSED := res_rec.REQ_CLOSED; v_row.REQ_CANCELLED := res_rec.REQ_CANCELLED; pipe ROW(v_row); END LOOP; RETURN; END monthly_analysis; And would also appreciate if someone can let me know as to what are the important plsql concepts used here so that I can go ahead and understand them in a better way and some small explanation would go long way. As suggested by dcp, i am trying to use debugger, again I have not used it before and so pardon me, here is what am getting: DECLARE REGION_ID_P VARCHAR2(200); COUNTRY_ID_P VARCHAR2(200); SUB_REGION_ID_P VARCHAR2(200); CUSTOMER_TYPE_ID_P VARCHAR2(200); RECEIVED_FROM_DATE_P VARCHAR2(200); RECEIVED_TO_DATE_P VARCHAR2(200); CUSTOMER_ID_P VARCHAR2(200); PRIORITY_ID_P VARCHAR2(200); WORK_GROUP_ID_P VARCHAR2(200); CITY_ID_P VARCHAR2(200); USER_ID_P VARCHAR2(200); v_Return GECEPDEV.AP_ANALYSIS_REPORT_TAB_TYPE; BEGIN REGION_ID_P := NULL; COUNTRY_ID_P := NULL; SUB_REGION_ID_P := NULL; CUSTOMER_TYPE_ID_P := NULL; RECEIVED_FROM_DATE_P := NULL; RECEIVED_TO_DATE_P := NULL; CUSTOMER_ID_P := NULL; PRIORITY_ID_P := NULL; WORK_GROUP_ID_P := NULL; CITY_ID_P := NULL; USER_ID_P := NULL; v_Return := ECEP_AP_REPORTS.MONTHLY_ANALYSIS( REGION_ID_P => REGION_ID_P, COUNTRY_ID_P => COUNTRY_ID_P, SUB_REGION_ID_P => SUB_REGION_ID_P, CUSTOMER_TYPE_ID_P => CUSTOMER_TYPE_ID_P, RECEIVED_FROM_DATE_P => RECEIVED_FROM_DATE_P, RECEIVED_TO_DATE_P => RECEIVED_TO_DATE_P, CUSTOMER_ID_P => CUSTOMER_ID_P, PRIORITY_ID_P => PRIORITY_ID_P, WORK_GROUP_ID_P => WORK_GROUP_ID_P, CITY_ID_P => CITY_ID_P, USER_ID_P => USER_ID_P ); -- Modify the code to output the variable -- DBMS_OUTPUT.PUT_LINE('v_Return = ' || v_Return); END; Can anyone guide me through this query and its goal ?

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• Shell command slow when using pipe, fast with intermediate file

  - by plang

  Does anyone understand this huge difference in processing time, when using an intermediate file, or when using a pipe? I'm converting tiff to pdf using standard tools on a fresh debian squeeze server. A standard way of doing this is to convert to ps first. Without pipe: root@web5:~# time tiff2ps test.tif > test.ps real 0m0.860s user 0m0.744s sys 0m0.112s root@web5:~# time ps2pdf13 -sPAPERSIZE=a4 test.ps > test.pdf real 0m0.667s user 0m0.612s sys 0m0.060s With pipe: root@web5:~# time tiff2ps test.tif | ps2pdf13 -sPAPERSIZE=a4 - > test.pdf real 1m6.098s user 0m15.861s sys 0m50.9 During the last command, gs process is at 100% all the time. Update: Here is an strace output for the ps generation: root@web5:~# strace tiff2ps test.tif > test.ps execve("/usr/bin/tiff2ps", ["tiff2ps", "test.tif"], [/* 28 vars */]) = 0 brk(0) = 0x1395000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a1937000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=21735, ...}) = 0 mmap(NULL, 21735, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb5a1931000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/libtiff.so.4", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\200\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=405128, ...}) = 0 mmap(NULL, 2501416, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb5a14b9000 mprotect(0x7fb5a151a000, 2093056, PROT_NONE) = 0 mmap(0x7fb5a1719000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x60000) = 0x7fb5a1719000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/libjpeg.so.62", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3408\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=145048, ...}) = 0 mmap(NULL, 2240080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb5a1296000 mprotect(0x7fb5a12b9000, 2093056, PROT_NONE) = 0 mmap(0x7fb5a14b8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x22000) = 0x7fb5a14b8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/libz.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\"\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=93936, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a1930000 mmap(NULL, 2188976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb5a107f000 mprotect(0x7fb5a1096000, 2093056, PROT_NONE) = 0 mmap(0x7fb5a1295000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7fb5a1295000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libm.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360>\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=530736, ...}) = 0 mmap(NULL, 2625768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb5a0dfd000 mprotect(0x7fb5a0e7d000, 2097152, PROT_NONE) = 0 mmap(0x7fb5a107d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x80000) = 0x7fb5a107d000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\355\1\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1437064, ...}) = 0 mmap(NULL, 3545160, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb5a0a9b000 mprotect(0x7fb5a0bf4000, 2093056, PROT_NONE) = 0 mmap(0x7fb5a0df3000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x158000) = 0x7fb5a0df3000 mmap(0x7fb5a0df8000, 18504, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb5a0df8000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a192f000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a192e000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a192d000 arch_prctl(ARCH_SET_FS, 0x7fb5a192e700) = 0 mprotect(0x7fb5a0df3000, 16384, PROT_READ) = 0 mprotect(0x7fb5a107d000, 4096, PROT_READ) = 0 mprotect(0x7fb5a1939000, 4096, PROT_READ) = 0 munmap(0x7fb5a1931000, 21735) = 0 open("test.tif", O_RDONLY) = 3 brk(0) = 0x1395000 brk(0x13b6000) = 0x13b6000 read(3, "II*\0\10\0\0\0", 8) = 8 fstat(3, {st_mode=S_IFREG|0644, st_size=1825656, ...}) = 0 mmap(NULL, 1825656, PROT_READ, MAP_SHARED, 3, 0) = 0x7fb5a176f000 open("/proc/meminfo", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a1936000 read(4, "MemTotal: 2090844 kB\nMemF"..., 1024) = 1024 close(4) = 0 munmap(0x7fb5a1936000, 4096) = 0 write(2, "TIFFReadDirectory: ", 19TIFFReadDirectory: ) = 19 write(2, "Warning, ", 9Warning, ) = 9 write(2, "test.tif: wrong data type 7 for "..., 59test.tif: wrong data type 7 for "RichTIFFIPTC"; tag ignored) = 59 write(2, ".\n", 2. ) = 2 gettimeofday({1334836895, 374666}, NULL) = 0 fstat(1, {st_mode=S_IFREG|0664, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a1936000 open("/etc/localtime", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5a1935000 read(4, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\4\0\0\0\0"..., 4096) = 1892 lseek(4, -1217, SEEK_CUR) = 675 read(4, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\6\0\0\0\6\0\0\0\0"..., 4096) = 1217 close(4) = 0 munmap(0x7fb5a1935000, 4096) = 0 write(1, "%!PS-Adobe-3.0 EPSF-3.0\n%%Creato"..., 4096) = 4096 write(1, "fffffffffffffffffffffffffffff\nff"..., 4096) = 4096 write(1, "ffffffffffffffffffff\nfffffffffff"..., 4096) = 4096 write(1, "fffffffffff\nffffffffffffffffffff"..., 4096) = 4096 write(1, "ff\nfffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffff\nfffffff"..., 4096) = 4096 Here is an strace output for the piped version: PS generation seems to be much slower when output is piped into ps2pdf13. root@web5:~# strace tiff2ps test.tif | ps2pdf13 -sPAPERSIZE=a4 - > test.pdf execve("/usr/bin/tiff2ps", ["tiff2ps", "test.tif"], [/* 28 vars */]) = 0 brk(0) = 0x1b97000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208bb1000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=21735, ...}) = 0 mmap(NULL, 21735, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f9208bab000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/libtiff.so.4", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\200\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=405128, ...}) = 0 mmap(NULL, 2501416, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f9208733000 mprotect(0x7f9208794000, 2093056, PROT_NONE) = 0 mmap(0x7f9208993000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x60000) = 0x7f9208993000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/libjpeg.so.62", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3408\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=145048, ...}) = 0 mmap(NULL, 2240080, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f9208510000 mprotect(0x7f9208533000, 2093056, PROT_NONE) = 0 mmap(0x7f9208732000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x22000) = 0x7f9208732000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/usr/lib/libz.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\"\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=93936, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208baa000 mmap(NULL, 2188976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f92082f9000 mprotect(0x7f9208310000, 2093056, PROT_NONE) = 0 mmap(0x7f920850f000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f920850f000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libm.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360>\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=530736, ...}) = 0 mmap(NULL, 2625768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f9208077000 mprotect(0x7f92080f7000, 2097152, PROT_NONE) = 0 mmap(0x7f92082f7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x80000) = 0x7f92082f7000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\355\1\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1437064, ...}) = 0 mmap(NULL, 3545160, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f9207d15000 mprotect(0x7f9207e6e000, 2093056, PROT_NONE) = 0 mmap(0x7f920806d000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x158000) = 0x7f920806d000 mmap(0x7f9208072000, 18504, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f9208072000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208ba9000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208ba8000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208ba7000 arch_prctl(ARCH_SET_FS, 0x7f9208ba8700) = 0 mprotect(0x7f920806d000, 16384, PROT_READ) = 0 mprotect(0x7f92082f7000, 4096, PROT_READ) = 0 mprotect(0x7f9208bb3000, 4096, PROT_READ) = 0 munmap(0x7f9208bab000, 21735) = 0 open("test.tif", O_RDONLY) = 3 brk(0) = 0x1b97000 brk(0x1bb8000) = 0x1bb8000 read(3, "II*\0\10\0\0\0", 8) = 8 fstat(3, {st_mode=S_IFREG|0644, st_size=1825656, ...}) = 0 mmap(NULL, 1825656, PROT_READ, MAP_SHARED, 3, 0) = 0x7f92089e9000 open("/proc/meminfo", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208bb0000 read(4, "MemTotal: 2090844 kB\nMemF"..., 1024) = 1024 close(4) = 0 munmap(0x7f9208bb0000, 4096) = 0 write(2, "TIFFReadDirectory: ", 19TIFFReadDirectory: ) = 19 write(2, "Warning, ", 9Warning, ) = 9 write(2, "test.tif: wrong data type 7 for "..., 59test.tif: wrong data type 7 for "RichTIFFIPTC"; tag ignored) = 59 write(2, ".\n", 2. ) = 2 gettimeofday({1334836513, 114140}, NULL) = 0 fstat(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208bb0000 open("/etc/localtime", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=1892, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9208baf000 read(4, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\4\0\0\0\0"..., 4096) = 1892 lseek(4, -1217, SEEK_CUR) = 675 read(4, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\6\0\0\0\6\0\0\0\0"..., 4096) = 1217 close(4) = 0 munmap(0x7f9208baf000, 4096) = 0 write(1, "%!PS-Adobe-3.0 EPSF-3.0\n%%Creato"..., 4096) = 4096 write(1, "fffffffffffffffffffffffffffff\nff"..., 4096) = 4096 write(1, "ffffffffffffffffffff\nfffffffffff"..., 4096) = 4096 write(1, "fffffffffff\nffffffffffffffffffff"..., 4096) = 4096 write(1, "ff\nfffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 write(1, "ffffffffffffffffffffffffffffffff"..., 4096) = 4096 ...etc...

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• Sorting a Linked List [closed]

  - by Mohit Sehgal

  I want to sort a linked list. Here Node is class representing a node in a Linked List I have written a code to bubble sort a linked list. Program does not finishes execution. Kindly point out the mistakes. class Node { public: int data; public: Node *next; Node() { data=0;next=0; } Node(int d) { data=d; } void setData(int d) { data=d; } void print() { cout<<data<<endl; } bool operator==(Node n) { return this->data==n.data; } bool operator >(Node d) { if((this->data) > (d.data)) return true; return false; } }; class LList { public: int noOfNodes; Node *start;/*Header Node*/ LList() { start=new Node; noOfNodes=0;start=0; } void addAtFront(Node* n) { n->next=(start); start=n; noOfNodes++; } void addAtLast(Node* n) { Node *cur=(start); n->next=NULL; if(start==NULL) { start=n; noOfNodes++; return; } while(cur->next!=NULL) { cur=cur->next; } cur->next=n; noOfNodes++; } void addAtPos(Node *n,int pos) { if(pos==1) { addAtFront(n);return; } Node *cur=(start); Node *prev=NULL; int curPos=0; n->next=NULL; while(cur!=NULL) { curPos++; if(pos==curPos+1) { prev=cur; } if(pos==curPos) { n->next=cur; prev->next=n; break; } cur=cur->next; } noOfNodes++; } void removeFirst() { Node *del=start; start=start->next; delete del; noOfNodes--; return; } void removeLast() { Node *cur=start,*prev=NULL; while(cur->next!=NULL) { prev=cur; cur=cur->next; } prev->next=NULL; Node *del=cur->next; delete del; noOfNodes--; return; } void removeNodeAt(int pos) { if(pos<1) return; if(pos==1) { removeFirst();return;} int curPos=1; Node* cur=start->next; Node* prev=start; Node* del=NULL; while(curPos<pos&&cur!=NULL) { curPos++; if(curPos==pos) { del=cur; prev->next=cur->next; cur->next=NULL; delete del; noOfNodes--; break; } prev=prev->next; cur=cur->next; } } void removeNode(Node *d) { Node *cur=start; if(*d==*cur) { removeFirst();return; } cur=start->next; Node *prev=start,*del=NULL; while(cur!=NULL) { if(*cur==*d) { del=cur; prev->next=cur->next; delete del; noOfNodes--; break; } prev=prev->next; cur=cur->next; } } int getPosition(Node data) { int pos=0; Node *cur=(start); while(cur!=NULL) { pos++; if(*cur==data) { return pos; } cur=cur->next; } return -1;//not found } Node getNode(int pos) { if(pos<1) return -1;// not a valid position else if(pos>noOfNodes) return -1; // not a valid position Node *cur=(start); int curPos=0; while(cur!=NULL) { if(++curPos==pos) return *cur; cur=cur->next; } } void reverseList()//reverse the list { Node* cur=start->next; Node* d=NULL; Node* prev=start; while(cur!=NULL) { d=cur->next; cur->next=start; start=cur; prev->next=d; cur=d; } } void sortBubble() { Node *i=start,*j=start,*prev=NULL,*temp=NULL,*after=NULL; int count=noOfNodes-1;int icount=0; while(i->next!=NULL) { j=start; after=j->next; icount=0; while(++icount!=count) { if((*j)>(*after)) { temp=after->next; after->next=j; prev->next=j->next; j->next=temp; prev=after; after=j->next; } else{ prev=j; j=after; after=after->next; } } i=i->next; count--; } } void traverse() { Node *cur=(start); int c=0; while(cur!=NULL) { // cout<<"start"<<start; c++; cur->print(); cur=cur->next; } noOfNodes=c; } ~LList() { delete start; } }; int main() { int n; cin>>n; int d; LList list; Node *node; Node *temp=new Node(2123); for(int i=0;i<n;i++) { cin>>d; node=new Node(d); list.addAtLast(node); } list.addAtPos(temp,1); cout<<"traverse\n"; list.traverse(); temp=new Node(12); list.removeNode(temp); cout<<"12 removed"; list.traverse(); list.reverseList(); cout<<"\nreversed\n"; list.traverse(); cout<<"bubble sort\n"; list.sortBubble(); list.traverse(); getch(); delete node; return 0; }

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• Why does java.util.ArrayList allow to add null?

  - by Alfredo O

  I wonder why java.util.ArrayList allows to add null. Is there any case where I would want to add null to an ArrayList? I am asking this question because in a project we had a bug where some code was adding nulls to the List and it was hard to spot where the bug was. Obviously a NullPointerException was thrown but not until another code tried to access the element. The problem was how to locate the code that added the null object. It would have been easier if the ArrayList throwed an exception in the code where the elements was being added.

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• TestContext is null

  - by Budda

  Pretty simple test: [TestClass] public class MyTestClass { private TestContext _testContext; protected TestContext TestContext { get { return _testContext; } set { _testContext = value; } } [TestMethod] [HostType("ASP.NET")] [UrlToTest("http://localhost/MyPage.aspx")] public void TestMyPage() { Assert.IsNotNull(TestContext); } } Fails... Now I am using VS2008 Development edition. Is there any possibility to fix this? Or I need to have a Test (or Team Suite) edition? Thanks. P.S. Access to TestContext object is required to have access to it's RequestedPage property

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• How to fix Index out of range exception on idatareader

  - by Phil

  Good morning stack overflow, I have been forced into using the idatareader as opposed to the sqldatareader which has .hasrows available. In my code I am attempting to handle nulls like this: reader = GetContent(pageid) While reader.Read If reader("content") IsNot DBNull.Value Then content = Replace(reader("content"), Chr(38) + Chr(97) + Chr(109) + Chr(112) + Chr(59) + Chr(98) + Chr(104) + Chr(99) + Chr(112) + Chr(61) + Chr(49), "") If reader("id") IsNot DBNull.Value Then contentid = reader("id") End If Else contentid = -1 content = String.Empty End If End While Outputcontent.Text = content I am getting an 'Index Out of Range Exception' here: If reader("content") IsNot DBNull.Value Then The database does 100% contain 'content'

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• Zend_Json::decode returning null

  - by davykiash

  Am trying to validate my form using an AJAX call $("#button").click(function() { $.ajax({ type: "POST", url: "<?php echo $this->baseUrl() ?>/expensetypes/async", data: 'fs=' + JSON.stringify($('#myform').serialize(true)), contentType: "application/json; charset=utf-8", dataType: "json" }); }); On my controller my code is as follows //Map the form from the client-side call $myFormData = Zend_Json::decode($this->getRequest()->getParam("fs") ,Zend_Json::TYPE_ARRAY); $form = new Form_Expensetypes(); $form->isValid($myFormData); My problem is that I cannot validate since Zend_Form::isValid expects an array Am not quite sure wether the problem is at my serialisation at the client end or Zend_Json::decode function does not function with this kind of JSON parsing.

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• Application.ActiveInspector() is Null on Outlook Ribbon Load

  - by Nazgul

  Is it possible to access the ActiveInspector at the time of ribbon load. Application.ActiveInspector() returns proper value when I use custom form but does not for default contact form. I need the ActiveInspector to customize ribbon button depending on a property value in ActiveInspector().CurrentItem.

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• Silverlight4 disable textbox required validation when form loads with initial value (null)

  - by Jay

  I am trying to implement validation using IDataErrorInfo or INotifyDataErrorInfo but either way I am struggling to make it work only once user start entering data or clicking save button. Since I am using MVVM, I am setting my view's datacontext to ViewModel and my ViewModel is implementing IDataErrorInfo / INotifyDataErrorInfo. I need to make sure validation happens but not when form loads up. Anyone has got any suggestion how I can implement? Thanks

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• JSON/PrototypeJS - why does this only work SOMETIMES?

  - by koko

  This is driving me nuts! I'm getting some JSON from my server: {"id262":{"done":null,"status":null,"verfall":null,"id":262,"bid":20044,"art":"owner","uid":"demo02","aktion":null,"termin_datum":null,"docid":null,"gruppenid":null,"news":"newsstring","datum":"11.06.2010","header":"headerstring","for_uid":"demo01"}, "id263":{"done":null,"status":"pending","verfall":null,"bid":20044,"id":263,"uid":"demo02","art":"foo","aktion":"dosomething","termin_datum":"11.06.2010","docid":null,"gruppenid":null,"datum":"11.06.2010","news":"newsstring","for_uid":"demo01","header":"headerstring"}, "id261":{"done":null,"status":null,"verfall":null,"id":261,"bid":20044,"art":"termin","uid":"demo02","aktion":null,"termin_datum":"25.06.2010","docid":null,"gruppenid":null,"news":"newsstring","datum":"11.06.2010","header":"headerstring","for_uid":null}} This is how my JS looks like: var user = 'demo02'; new Ajax.Request('myscript.pl?someparameter=value', { method:'get', onSuccess: function(transport){ var db_json = transport.responseText.evalJSON(), propCount = 0, someArray1 = [], someArray2 = [], otherArray = []; //JSON DEBUG console.log('validated string:'); console.log(transport.responseText.evalJSON(true)); for(var prop in db_json) { propCount++; if ( (db_json[prop].art == 'foo') && (db_json[prop].for_uid == user) ) { someArray1.push(db_json[prop]); } else if( (db_json[prop].art == 'foo') && (db_json[prop].uid == user) ) { someArray2.push(db_json[prop]); } else if( db_json[prop].art == 'log' ) { otherArray.push(db_json[prop]); } } if(someArray1.length>0) { someArray1.map(function(el){ $('someArray1target').innerHTML += el.done; //do more stuff }); } if(someArray2.length>0) { someArray2.map(function(el){ $('someArray2target').innerHTML += el.done; //do more stuff }); } }); Sometimes, it works perfectly. Sometimes, i get my JSON String (it appears in Firebug's "answer"-tab), but it won't log the JSON in console-log(). I'm not getting any errors and javascript is still working. Next time after reloading, it might work, but it might not. I cannot remotely imagine why this only happens sometimes!

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• C++ JSON parser

  - by pollux

  Dear reader, I'm working on a twitter client which uses the twitter streaming json api. Twitter advices JSON as XML version is deprecated. I'm looking for a good JSON parser which can parse the json data below. I'm receiving this JSON which I want to be able to read/parse using a JSON parser. { "in_reply_to_status_id": null, "text": "Home-plate umpire Crawford gets stung http://tinyurl.com/27ujc86", "favorited": false, "coordinates": null, "in_reply_to_user_id": null, "source": "<a href=\"http://apiwiki.twitter.com/\" rel=\"nofollow\">API</a>", "geo": null, "created_at": "Fri Jun 18 15:12:06 +0000 2010", "place": null, "user": { "profile_text_color": "333333", "screen_name": "HostingViral", "time_zone": "Pacific Time (US & Canada)", "url": "http://bit.ly/1Way7P", "profile_link_color": "228235", "profile_background_image_url": "http://s.twimg.com/a/1276654401/images/themes/theme14/bg.gif", "description": "Full time Internet Marketer - Helping other reach their Goals\r\nhttp://wavemarker.com", "statuses_count": 1944, "profile_sidebar_fill_color": "c7b7c7", "profile_background_tile": true, "contributors_enabled": false, "lang": "en", "notifications": null, "created_at": "Wed Dec 30 07:50:52 +0000 2009", "profile_sidebar_border_color": "120412", "following": null, "geo_enabled": false, "followers_count": 2485, "protected": false, "friends_count": 2495, "location": "Working at Home", "name": "Johnathan Thomas", "verified": false, "profile_background_color": "131516", "profile_image_url": "http://a1.twimg.com/profile_images/600114776/nessykalvo421_normal.jpg", "id": 100439873, "utc_offset": -28800, "favourites_count": 0 }, "in_reply_to_screen_name": null, "id": 16477056501, "contributors": null, "truncated": false } *This is the raw string (above it beautified) * {"in_reply_to_status_id":null,"text":"Home-plate umpire Crawford gets stung http://tinyurl.com/27ujc86","favorited":false,"coordinates":null,"in_reply_to_user_id":null,"source":"<a href=\"http://apiwiki.twitter.com/\" rel=\"nofollow\">API</a>","geo":null,"created_at":"Fri Jun 18 15:12:06 +0000 2010","place":null,"user":{"profile_text_color":"333333","screen_name":"HostingViral","time_zone":"Pacific Time (US & Canada)","url":"http://bit.ly/1Way7P","profile_link_color":"228235","profile_background_image_url":"http://s.twimg.com/a/1276654401/images/themes/theme14/bg.gif","description":"Full time Internet Marketer - Helping other reach their Goals\r\nhttp://wavemarker.com","statuses_count":1944,"profile_sidebar_fill_color":"c7b7c7","profile_background_tile":true,"contributors_enabled":false,"lang":"en","notifications":null,"created_at":"Wed Dec 30 07:50:52 +0000 2009","profile_sidebar_border_color":"120412","following":null,"geo_enabled":false,"followers_count":2485,"protected":false,"friends_count":2495,"location":"Working at Home","name":"Johnathan Thomas","verified":false,"profile_background_color":"131516","profile_image_url":"http://a1.twimg.com/profile_images/600114776/nessykalvo421_normal.jpg","id":100439873,"utc_offset":-28800,"favourites_count":0},"in_reply_to_screen_name":null,"id":16477056501,"contributors":null,"truncated":false} I've tried multiple JSON parsers from json.org though I've tried 4 now and can't find one which can parse above json. Kind regards, Pollux

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• No long-running conversations - IllegalArgumentException: Stack must not be null

  - by Markos Fragkakis

  Hi all, I have a very simple application with just 2 pages on WebLogic 10.3.2 (11g), Seam 2.2.0.GA. I have a command button in each, which makes a redirect-after-post to the other. This works well, as I see the URL of the current page I am seeing in the address bar. BUT, even though I have no long-running conversations defined, after a random number of clicks, and - I think - after a random number of seconds (~10s - 60s) I get the lovely exception at the end of this post. Now, if I have understood how temporary conversations work when redirecting this happens: When I first see my application, the url is http://localhost:7001/myapp When I click the button in pageA.xhtml, I end up in "pageB.xhtml?cid=26". This is normal because Seam extends the temporary conversation of the first request to last until the renderResponse phase of the redirect. So, it uses the cid (Conversation Id) of the extended temporary conversation to find any propagated parameters. When I click the button in pageB.xhtml, I end up in pageA.xhtml?cid=26 The same cid was given to the new extended temporary conversation. This is normal because the conversation ended at the end of the previous redirect-after-post, and not the number 26 is free to use as a cid. Is this all correct? If yes, why does this happen: If I re-type the applications home address (showing pageA) and re-click, I end up in pageB.xhtml?cid=29, which is a different number than 26. But 26 has ended after the previous RenderResponse phase, befire I re-types the url. Why is it not used instead of 29? So, to sup up, 2 questions: Why do I get the exception, even though I have not started any long-running conversations? What happens exactly with the cid? On what basis does it change? Cheers,

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• [[UIDevice currentDevice] orientation] always null

  - by Toby Wilson

  As per the title. Calling [[UIDevice currentDevice] BeginGeneratingDeviceOrientationNotifications] has no effect. DidRotateToInterfaceOrientation etc events are working fine, but I need to be able to poll the device orientation arbitrarily. How can I fix/do this? The long story: I have a tab application with a navigation controller on each tab. The root view of tab number one is a graph that goes full screen when the orientation changes to landscape; however this needs to be checked whenever the view appears as the orientation change could have occurred elsewhere, so I was hoping to poll the orientation state whenever this view appears.

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• null values from listbox, are not evaluated in the model binding of ASP.NET-MVC

  - by Jorge

  The model validation doesn't evaluates the attributes linked to listbox values if you don't select at least one of them. This way is not possible to do a model evaluation using DataAnnotations in order to inform required values. The controller: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using TestValidation.Models; namespace TestValidation.Controllers { [HandleError] public class HomeController : Controller { private SelectList list = new SelectList(new List<string>() { "Sao Paulo", "Toronto", "New York", "Vancouver" }); public ActionResult Index() { ViewData["ModelState"] = "NOT EVAL"; ViewData["ItemsList"] = list; return View(); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Index(MyEntity entity) { if (ModelState.IsValid) { ViewData["ModelState"] = "VALID"; } else { ViewData["ModelState"] = "NOT VALID!!!"; } ViewData["ItemsList"] = list; return View(); } public ActionResult About() { return View(); } } } The View: <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TestValidation.Models.MyEntity>" %> <asp:Content ID="indexTitle" ContentPlaceHolderID="TitleContent" runat="server"> Home Page </asp:Content> <asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server"> <h2> Validation Test</h2> <p> <% using (Html.BeginForm()) {%> <fieldset> <p> ModelState: <%= Html.Encode((string)ViewData["ModelState"])%> </p> <p> <label for="Name"> Name:</label> <%= Html.TextBoxFor(m => m.Name)%> <%= Html.ValidationMessageFor(m => m.Name)%> </p> <p> <label for="ItemFromList"> Items (list):</label> <%= Html.ListBoxFor(m => m.ItemFromList, ViewData["ItemsList"] as SelectList)%> <%= Html.ValidationMessageFor(m => m.ItemFromList)%> </p> <p> <label for="ItemFromCombo"> Items (combo):</label> <%= Html.DropDownListFor(m => m.ItemFromCombo, ViewData["ItemsList"] as SelectList)%> <%= Html.ValidationMessageFor(m => m.ItemFromCombo)%> </p> <p> <input type="submit" value="Submit" /> </p> </fieldset> <% } %> </asp:Content> The Model: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.ComponentModel.DataAnnotations; namespace TestValidation.Models { public class MyEntity_Validate : ValidationAttribute { public MyEntity_Validate() { this.ErrorMessage = "Validated!. Is <> Toronto"; } public override bool IsValid(object value) { return ((string)value == "Toronto"); } } public class MyEntity { [Required] public string Name { get; set; } [MyEntity_Validate] public string ItemFromList { get; set; } [MyEntity_Validate] public string ItemFromCombo { get; set; } } } Any help would be very much appreciated. Thank you.

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• C# Winforms ADO.NET - DataGridView INSERT starting with null data

  - by Geo Ego

  I have a C# Winforms app that is connecting to a SQL Server 2005 database. The form I am currently working on allows a user to enter a large amount of different types of data into various textboxes, comboboxes, and a DataGridView to insert into the database. It all represents one particular type of machine, and the data is spread out over about nine tables. The problem I have is that my DataGridView represents a type of data that may or may not be added to the database. Thus, when the DataGridView is created, it is empty and not databound, and so data cannot be entered. My question is, should I create the table with hard-coded field names representing the way that the data looks in the database, or is there a way to simply have the column names populate with no data so that the user can enter it if they like? I don't like the idea of hard-coding them in case there is a change in the database schema, but I'm not sure how else to deal with this problem.

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• Should classes that are passed references to IDisposable objects be IDisposable as well and set them

  - by Trap

  I think the question says it all. Thanks.

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