TrySAX.java Source code

Introduction

Here is the source code for TrySAX.java

Source

import java.io.File;
import java.io.IOException;

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

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class TrySAX extends DefaultHandler {
    public static void main(String args[]) {
        if (args.length == 0) {
            System.out.println("No file to process. Usage is:" + "\njava TrySAX <filename>");

            return;
        }
        File xmlFile = new File(args[0]);
        handler = new TrySAX();
        handler.process(xmlFile);
    }

    private void process(File file) {
        SAXParserFactory spf = SAXParserFactory.newInstance();
        spf.setNamespaceAware(true);
        spf.setValidating(true);
        System.out.println("Parser will " + (spf.isNamespaceAware() ? "" : "not ") + "be namespace aware");
        System.out.println("Parser will " + (spf.isValidating() ? "" : "not ") + "validate XML");
        try {
            parser = spf.newSAXParser();
            System.out.println("Parser object is: " + parser);
        } catch (SAXException e) {
            e.printStackTrace(System.err);
            System.exit(1);
        } catch (ParserConfigurationException e) {
            e.printStackTrace(System.err);
            System.exit(1);
        }
        System.out.println("\nStarting parsing of " + file + "\n");
        try {
            parser.parse(file, this);
        } catch (IOException e) {
            e.printStackTrace(System.err);
        } catch (SAXException e) {
            e.printStackTrace(System.err);
        }
    }

    public void startDocument() {
        System.out.println("Start document: ");
    }

    public void endDocument() {
        System.out.println("End document: ");
    }

    public void startElement(String uri, String localName, String qname, Attributes attr) {
        System.out.println("Start element: local name: " + localName + " qname: " + qname + " uri: " + uri);
    }

    public void endElement(String uri, String localName, String qname) {
        System.out.println("End element: local name: " + localName + " qname: " + qname + " uri: " + uri);
    }

    public void characters(char[] ch, int start, int length) {
        System.out.println("Characters: " + new String(ch, start, length));
    }

    public void ignorableWhitespace(char[] ch, int start, int length) {
        System.out.println("Ignorable whitespace: " + new String(ch, start, length));
    }

    private static TrySAX handler = null;

    private SAXParser parser = null;
}