implements ErrorHandler : ErrorHandler « org.xml.sax « Java by API

1. Java by API
2. org.xml.sax
3. ErrorHandler

implements ErrorHandler

import java.io.StringReader;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;

public class MainClass {
  static public void main(String[] arg) throws Exception{
    boolean validate = false;

    SAXParserFactory spf = SAXParserFactory.newInstance();
    spf.setValidating(validate);

    XMLReader reader = null;
      SAXParser parser = spf.newSAXParser();
      reader = parser.getXMLReader();

    reader.setErrorHandler(new MyErrorHandler());
      reader.parse(new InputSource(new StringReader(xmlString)));
}
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME>Joe Wang</NAME>" +
  "   <EMAIL>joe@yourserver.com</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.java2s.com</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAE>" +    // error here
  "   <EMAIL>karol@yourserver.com</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.java2s.com</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.com</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.java2s.com</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class MyErrorHandler implements ErrorHandler {
  public void warning(SAXParseException e) throws SAXException {
    show("Warning", e);
    throw (e);
  }

  public void error(SAXParseException e) throws SAXException {
    show("Error", e);
    throw (e);
  }

  public void fatalError(SAXParseException e) throws SAXException {
    show("Fatal Error", e);
    throw (e);
  }

  private void show(String type, SAXParseException e) {
    System.out.println(type + ": " + e.getMessage());
    System.out.println("Line " + e.getLineNumber() + " Column "
        + e.getColumnNumber());
    System.out.println("System ID: " + e.getSystemId());
  }
}
           
       

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