MainClass.java Source code

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/*
Parser object is: com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl@c9ba38
Start document: 
Start element: local name: PHONEBOOK qname: PHONEBOOK uri: 
Characters:   
Start element: local name: PERSON qname: PERSON uri: 
Characters:    
Start element: local name: NAME qname: NAME uri: 
Attributes:
  Name : firstName
  Type : CDATA
  Value: Joe
  Name : lastName
  Type : CDATA
  Value: Yin
Characters: Joe
Characters:  Yin
End element: local name: NAME qname: NAME uri: 
Characters:    
Start element: local name: EMAIL qname: EMAIL uri: 
Characters: joe@yourserver.com
End element: local name: EMAIL qname: EMAIL uri: 
Characters:    
Start element: local name: TELEPHONE qname: TELEPHONE uri: 
Characters: 202-999-9999
End element: local name: TELEPHONE qname: TELEPHONE uri: 
Characters:    
Start element: local name: WEB qname: WEB uri: 
Characters: www.java2s.com
End element: local name: WEB qname: WEB uri: 
Characters:   
End element: local name: PERSON qname: PERSON uri: 
Characters:   
End element: local name: PHONEBOOK qname: PHONEBOOK uri: 
End document: 
 */
import java.io.StringReader;

import javax.xml.XMLConstants;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.sax.SAXSource;
import javax.xml.validation.SchemaFactory;

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

public class MainClass {
    public static void main(String args[]) throws Exception {
        SAXParserFactory spf = SAXParserFactory.newInstance();
        SAXParser parser = null;
        spf.setNamespaceAware(true);
        try {
            SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
            spf.setSchema(sf.newSchema(new SAXSource(new InputSource(new StringReader(schemaString)))));

            parser = spf.newSAXParser();
        } catch (SAXException e) {
            e.printStackTrace(System.err);
            System.exit(1);
        } catch (ParserConfigurationException e) {
            e.printStackTrace(System.err);
            System.exit(1);
        }
        MySAXHandler handler = new MySAXHandler();
        System.out.println(schemaString);
        parser.parse(new InputSource(new StringReader(xmlString)), handler);
    }

    static String xmlString = "<?xml version=\"1.0\"?>" + "<note>" + "<to>rtoName</to>" + "<from>FromName</from>"
            + "<heading>Info</heading>" + "<body>Message Body</body>" + "</note>";

    static String schemaString = "<?xml version=\"1.0\"?>"
            + "<xs:schema xmlns:xs=\"http://www.w3.org/2001/XMLSchema\""
            + " targetNamespace=\"http://www.java2s.com\"" + " xmlns=\"http://www.java2s.com\""
            + " elementFormDefault=\"qualified\">" + "<xs:element name=\"note\">" + "<xs:complexType>"
            + "<xs:sequence>" + "<xs:element name=\"to\" type=\"xs:string\"/>"
            + "<xs:element name=\"from\" type=\"xs:string\"/>" + "<xs:element name=\"heading\" type=\"xs:string\"/>"
            + "<xs:element name=\"body\" type=\"xs:string\"/>" + "</xs:sequence>" + "</xs:complexType>"
            + "</xs:element>" + "</xs:schema>";
}

class MySAXHandler extends DefaultHandler {
    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);
        int attrCount = attr.getLength();
        if (attrCount > 0) {
            System.out.println("Attributes:");
            for (int i = 0; i < attrCount; i++) {
                System.out.println("  Name : " + attr.getQName(i));
                System.out.println("  Type : " + attr.getType(i));
                System.out.println("  Value: " + attr.getValue(i));
            }
        }
    }

    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));
    }

    public void startPrefixMapping(String prefix, String uri) {
        System.out.println("Start \"" + prefix + "\" namespace scope. URI: " + uri);
    }

    public void endPrefixMapping(String prefix) {
        System.out.println("End \"" + prefix + "\" namespace scope.");
    }

    public void warning(SAXParseException spe) {
        System.out.println("Warning at line " + spe.getLineNumber());
        System.out.println(spe.getMessage());
    }

    public void fatalError(SAXParseException spe) throws SAXException {
        System.out.println("Fatal error at line " + spe.getLineNumber());
        System.out.println(spe.getMessage());
        throw spe;
    }
}