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Java > XML sample source codes

Xml Util

Xml Util
  
 

package com.ack.util;

import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

public class XmlUtil {
  private static DocumentBuilderFactory documentBuilderFactory;

  /**
   * Not Thread Safe
   * @return javax.xml.parsers.DocumentBuilderFactory
   */
  public static synchronized DocumentBuilderFactory getDocumentBuilderFactory() {
    if( XmlUtil.documentBuilderFactory == null ) {
      // configure the document builder factory
      documentBuilderFactory = DocumentBuilderFactory.newInstance();
      documentBuilderFactory.setValidating( true );
      documentBuilderFactory.setNamespaceAware( true );
    }
    return XmlUtil.documentBuilderFactory;
  }

  /**
   * @param is an InputSource
   * @return org.w3c.dom.Document
   * @throws javax.xml.parsers.ParserConfigurationException
   * @throws org.xml.sax.SAXException
   * @throws java.io.IOException
   */
  public static Document getDocument( InputSource is )
      throws ParserConfigurationException, SAXException, IOException {
    // get a builder to create a DOM document
    DocumentBuilder builder =
        XmlUtil.getDocumentBuilderFactory().newDocumentBuilder();

    // parse the damned document
    return builder.parse( is );
  }

}
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