Problem in using ErrorHandler interface

Question

Hi ,
I have a problem with Errorhandler interface.I use errorhandler class to handle the errors/warnings while parsing an XML file.Incase of an error,a JOptionPane pane is displayed to get user confirmation.If there is only one error while parsing my code is working fine. But if there are more then one error, it displays the JOptionPane for each error till the last error. I want the JOptionPane to be displayed only once.
Can anyone help me to fix this?
try {
          hErr = new MyErrorHandler1();
          DocumentBuilder builder = factory.newDocumentBuilder();
          // Set the Error handler
          builder.setErrorHandler(hErr);
          // Parse the XML Document
          document = builder.parse(f);
          if (Index.equals("T")){
          else{
catch(){
}If there is a Parsing error, then MyErrorHandler class is called
class MyErrorHandler1 implements ErrorHandler{
        public void error(SAXParseException exception)
             System.out.println("\n Error occured...."+ exception);
          try{
                 JOptionPane.showMessageDialog(null,"Parsing error occcured");
                 int response = JOptionPane.showConfirmDialog(null, "Do you want to continue?", "Confirm",     JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
                                         if (response == JOptionPane.NO_OPTION)
                System.out.println("No button clicked");
                 System.exit(0);
                                        else if (response == JOptionPane.YES_OPTION)
                OrderFrame orderframe = new OrderFrame();
                                         else if (response == JOptionPane.CLOSED_OPTION)
                System.out.println("JOptionPane closed");
          catch(Exception e){
               System.out.println(e);
     public void warning(SAXParseException exception)
     public void fatalError(SAXParseException exception)
}

Answer 1

Rather than calling a dialog in your ErrorHandler, increment a counter. Then call a cleanup method. Example (this is pretty rough, but hopefully you get the idea):
try {
          hErr = new MyErrorHandler1();
          DocumentBuilder builder = factory.newDocumentBuilder();
          // Set the Error handler
          builder.setErrorHandler(hErr);
          // Parse the XML Document
          document = builder.parse(f);
          hErr.finish(); // NEW CODE HERE
          if (Index.equals("T")){
          else{
catch(){
class MyErrorHandler1 implements ErrorHandler{
     private int errorCount=0;
        public void error(SAXParseException exception)
             System.out.println("\n Error occured...."+ exception);
          try{
               errorCount++;
          catch(Exception e){
               System.out.println(e);
     public void warning(SAXParseException exception)
     public void fatalError(SAXParseException exception)
     public void finish() {
          if (errorCount > 0) {
                 JOptionPane.showMessageDialog(null, errorCount + "parsing error(s) occcured");
                 int response = JOptionPane.showConfirmDialog(null, "Do you want to continue?", "Confirm",     JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
                                         if (response == JOptionPane.NO_OPTION)
                System.out.println("No button clicked");
                 System.exit(0);
                                        else if (response == JOptionPane.YES_OPTION)
                OrderFrame orderframe = new OrderFrame();
                                         else if (response == JOptionPane.CLOSED_OPTION)
                System.out.println("JOptionPane closed");
     public void warning(SAXParseException exception)
     public void fatalError(SAXParseException exception)
}Edited by: Hushpuppy on May 27, 2008 8:45 AM