/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Axis" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package org.jboss.axis.message;

import org.jboss.axis.encoding.SerializationContext;
import org.jboss.logging.Logger;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.ext.LexicalHandler;
import org.xml.sax.helpers.DefaultHandler;

import javax.xml.namespace.QName;
import java.io.IOException;

public class SAXOutputter extends DefaultHandler implements LexicalHandler
{
   private static Logger log = Logger.getLogger(SAXOutputter.class.getName());

   SerializationContext context;
   boolean isCDATA = false;

   public SAXOutputter(SerializationContext context)
   {
      this.context = context;
   }

   public void startDocument() throws SAXException
   {
      if (log.isTraceEnabled())
      {
         log.trace("SAXOutputter.startDocument");
      }

      try
      {
         context.startDocument();
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void endDocument() throws SAXException
   {
      if (log.isTraceEnabled())
      {
         log.trace("SAXOutputter.endDocument");
      }
   }

   public void startPrefixMapping(String p1, String p2) throws SAXException
   {
      context.registerPrefixForURI(p1, p2);
   }

   public void endPrefixMapping(String p1) throws SAXException
   {
      // !!!
   }

   public void characters(char[] p1, int p2, int p3) throws SAXException
   {
      if (log.isTraceEnabled())
      {
         log.trace("SAXOutputter.characters ['" + new String(p1, p2, p3) + "']");
      }
      try
      {
         if (!isCDATA)
         {
            context.writeChars(p1, p2, p3);
         }
         else
         {
            context.writeString(new String(p1, p2, p3));
         }
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void ignorableWhitespace(char[] p1, int p2, int p3)
           throws SAXException
   {
      try
      {
         context.writeChars(p1, p2, p3);
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void skippedEntity(String p1) throws SAXException
   {
   }

   public void startElement(String namespace, String localName,
                            String qName, Attributes attributes)
           throws SAXException
   {
      if (log.isTraceEnabled())
      {
         log.trace("SAXOutputter.startElement ['" + namespace + "' " +
                 localName + "]");
      }

      try
      {
         context.startElement(new QName(namespace, localName), attributes);
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void endElement(String namespace, String localName, String qName)
           throws SAXException
   {
      if (log.isTraceEnabled())
      {
         log.trace("SAXOutputter.endElement ['" + namespace + "' " +
                 localName + "]");
      }

      try
      {
         context.endElement();
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void startDTD(java.lang.String name,
                        java.lang.String publicId,
                        java.lang.String systemId)
           throws SAXException
   {
   }

   public void endDTD()
           throws SAXException
   {
   }

   public void startEntity(java.lang.String name)
           throws SAXException
   {
   }

   public void endEntity(java.lang.String name)
           throws SAXException
   {
   }

   public void startCDATA()
           throws SAXException
   {
      try
      {
         isCDATA = true;
         context.writeString("<![CDATA[");
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void endCDATA()
           throws SAXException
   {
      try
      {
         isCDATA = false;
         context.writeString("]]>");
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }

   public void comment(char[] ch,
                       int start,
                       int length)
           throws SAXException
   {
      if (log.isTraceEnabled())
      {
         log.trace("SAXOutputter.comment ['" + new String(ch, start, length) + "']");
      }
      try
      {
         context.writeString("<!--");
         context.writeChars(ch, start, length);
         context.writeString("-->");
      }
      catch (IOException e)
      {
         throw new SAXException(e);
      }
   }
}
