cvs commit: jakarta-avalon-excalibur/xmlutil/src/java/org/apache/excalibur/xml/dom DOMSerializer.java DefaultDOMSerializer.java

[mi...@apache.org]

mirceatoma    2002/09/03 13:26:59

  Added:       xmlutil/src/java/org/apache/excalibur/xml/dom
                        DOMSerializer.java DefaultDOMSerializer.java
  Log:
  Add component that transform a DOM document to a stream of SAX events.
  
  Revision  Changes    Path
  1.1                  jakarta-avalon-excalibur/xmlutil/src/java/org/apache/excalibur/xml/dom/DOMSerializer.java
  
  Index: DOMSerializer.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included  with this distribution in
   * the LICENSE.txt file.
   */
  package org.apache.excalibur.xml.dom;
  
  import org.w3c.dom.Document;
  import org.xml.sax.ContentHandler;
  import org.xml.sax.ext.LexicalHandler;
  import org.xml.sax.SAXException;
  
  /**
   * Converts a DOM document to a stream of SAX events.
   *
   * @author <a href="mailto:mirceatoma@apache.org">Mircea Toma</a>
   * @version CVS $Revision: 1.1 $ $Date: 2002/09/03 20:26:59 $
   */
  public interface DOMSerializer 
  {    
      String ROLE = DOMSerializer.class.getName();
      
      void serialize( Document document, ContentHandler contentHandler, LexicalHandler lexicalHandler ) throws SAXException;
  }
  
  
  
  1.1                  jakarta-avalon-excalibur/xmlutil/src/java/org/apache/excalibur/xml/dom/DefaultDOMSerializer.java
  
  Index: DefaultDOMSerializer.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included  with this distribution in
   * the LICENSE.txt file.
   */
  package org.apache.excalibur.xml.dom;
  
  import org.w3c.dom.Document;
  import org.xml.sax.ContentHandler;
  import org.xml.sax.SAXException;
  import org.xml.sax.ext.LexicalHandler;
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerConfigurationException;
  import javax.xml.transform.TransformerException;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.dom.DOMSource;
  import javax.xml.transform.sax.SAXResult;
  import org.apache.avalon.framework.logger.AbstractLogEnabled;
  import org.apache.avalon.framework.component.Component;
  
  public class DefaultDOMSerializer extends AbstractLogEnabled implements DOMSerializer, Component
  {    
      private final TransformerFactory m_factory = TransformerFactory.newInstance();
          
      public void serialize( Document document, ContentHandler contentHandler, LexicalHandler lexicalHandler ) throws SAXException 
      {        
          try 
          {
              final Transformer transformer = m_factory.newTransformer();
              final DOMSource source = new DOMSource(document);
              final SAXResult result = new SAXResult(contentHandler);
              result.setLexicalHandler(lexicalHandler);
  
              transformer.transform(source, result);
          }
          catch (TransformerConfigurationException e) 
          {
              getLogger().error("Cannot create transformer", e);
              throw new SAXException(e);
          }
          catch (TransformerException e)
          {
              getLogger().error("Cannot serialize document", e);
              throw new SAXException(e);
          }
      }    
  }
  
  
  

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