Validate Stax : Stream Parser « XML « Java Tutorial

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/*
 * Validate.java
 *
 * Created on May 28, 2005, 3:02 PM
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;

import javax.xml.XMLConstants;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;

/**
 * 
 * @author pv156767
 */
public class ValidateStax {
  /**
   * @param args
   *          the command line arguments
   */
  public static void main(String[] args) {
    try {
      // TODO code application logic here
      SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
      System.out.println("schema factory instance obtained is " + sf);

      Schema schema = sf.newSchema(new File(args[0]));
      System.out.println("schema obtained is = " + schema);
      // Get a Validator which can be used to validate instance document against
      // this grammar.
      Validator validator = schema.newValidator();

      // Validate this instance document against the Instance document supplied
      String fileName = args[1].toString();
      String fileName2 = args[2].toString();
      javax.xml.transform.Result xmlResult = new javax.xml.transform.stax.StAXResult(
          XMLOutputFactory.newInstance().createXMLStreamWriter(new FileWriter(fileName2)));
      javax.xml.transform.Source xmlSource = new javax.xml.transform.stax.StAXSource(
          getXMLEventReader(fileName));
      // validator.validate(new StreamSource(args[1]));
      validator.validate(xmlSource, xmlResult);
    } catch (Exception ex) {
      ex.printStackTrace();
      System.out.println("GET CAUSE");
      ex.getCause().fillInStackTrace();
    }
  }

  private static XMLEventReader getXMLEventReader(String filename) {
    XMLInputFactory xmlif = null;
    XMLEventReader xmlr = null;
    try {
      xmlif = XMLInputFactory.newInstance();
      xmlif.setProperty(XMLInputFactory.IS_REPLACING_ENTITY_REFERENCES, Boolean.TRUE);
      xmlif.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, Boolean.FALSE);
      xmlif.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, Boolean.TRUE);
      xmlif.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);

      FileInputStream fis = new FileInputStream(filename);
      xmlr = xmlif.createXMLEventReader(filename, fis);
    } catch (Exception ex) {
      ex.printStackTrace();
    }
    return xmlr;
  }

}