/*
 * 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 "Xalan" 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 and was
 * originally based on software copyright (c) 2001, Sun
 * Microsystems., http://www.sun.com.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * @author Santiago Pericas-Geertsen
 *
 */
package org.apache.xml.serializer;

import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
import java.util.Properties;

import org.w3c.dom.Node;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.ext.LexicalHandler;

/**
 * @author minchau
 *
 * To change this generated comment edit the template variable "typecomment":
 * Window>Preferences>Java>Templates.
 * To enable and disable the creation of type comments go to
 * Window>Preferences>Java>Code Generation.
 */
public class ToTextSAXHandler extends ToSAXHandler 
{
    /**
     * From XSLTC
     * @see org.apache.xml.serializer.ExtendedContentHandler#endElement(String)
     */
    public void endElement(String elemName) throws SAXException
    {
        if (m_tracer != null)
            super.fireEndElem(elemName);
    }

    /**
     * @see org.xml.sax.ContentHandler#endElement(String, String, String)
     */
    public void endElement(String arg0, String arg1, String arg2)
        throws SAXException
    {
		if (m_tracer != null)
            super.fireEndElem(arg2);    	
    }

    public ToTextSAXHandler(ContentHandler hdlr, LexicalHandler lex, String encoding)
    {
        super(hdlr, lex, encoding);
    }
    
        /**
     * From XSLTC
     */
    public ToTextSAXHandler(ContentHandler handler, String encoding)
    {
        super(handler,encoding);
    }

    public void comment(char ch[], int start, int length)
        throws org.xml.sax.SAXException
    {
        if (m_tracer != null)
            super.fireCommentEvent(ch, start, length);
    }

    public void comment(String data) throws org.xml.sax.SAXException
    {
        final int length = data.length();
        if (length > m_charsBuff.length)
        {
            m_charsBuff = new char[length*2 + 1];
        }
        data.getChars(0, length, m_charsBuff, 0);
        comment(m_charsBuff, 0, length);
    }

    /**
     * @see org.apache.xml.serializer.Serializer#getOutputFormat()
     */
    public Properties getOutputFormat()
    {
        return null;
    }

    /**
     * @see org.apache.xml.serializer.Serializer#getOutputStream()
     */
    public OutputStream getOutputStream()
    {
        return null;
    }

    /**
     * @see org.apache.xml.serializer.Serializer#getWriter()
     */
    public Writer getWriter()
    {
        return null;
    }

    /**
     * Does nothing because 
     * the indent attribute is ignored for text output.
     *
     */
    public void indent(int n) throws SAXException
    {
    }

    /**
     * @see org.apache.xml.serializer.Serializer#reset()
     */
    public boolean reset()
    {
        return false;
    }

    /**
     * @see org.apache.xml.serializer.DOMSerializer#serialize(Node)
     */
    public void serialize(Node node) throws IOException
    {
    }

    /**
     * @see org.apache.xml.serializer.SerializationHandler#setEscaping(boolean)
     */
    public boolean setEscaping(boolean escape)
    {
        return false;
    }

    /**
     * @see org.apache.xml.serializer.SerializationHandler#setIndent(boolean)
     */
    public void setIndent(boolean indent)
    {
    }

    /**
     * @see org.apache.xml.serializer.Serializer#setOutputFormat(Properties)
     */
    public void setOutputFormat(Properties format)
    {
    }

    /**
     * @see org.apache.xml.serializer.Serializer#setOutputStream(OutputStream)
     */
    public void setOutputStream(OutputStream output)
    {
    }

    /**
     * @see org.apache.xml.serializer.Serializer#setWriter(Writer)
     */
    public void setWriter(Writer writer)
    {
    }

    /**
     * @see org.apache.xml.serializer.ExtendedContentHandler#addAttribute(String, String, String, String, String)
     */
    public void addAttribute(
        String uri,
        String localName,
        String rawName,
        String type,
        String value)
    {
    }

    /**
     * @see org.xml.sax.ext.DeclHandler#attributeDecl(String, String, String, String, String)
     */
    public void attributeDecl(
        String arg0,
        String arg1,
        String arg2,
        String arg3,
        String arg4)
        throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ext.DeclHandler#elementDecl(String, String)
     */
    public void elementDecl(String arg0, String arg1) throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ext.DeclHandler#externalEntityDecl(String, String, String)
     */
    public void externalEntityDecl(String arg0, String arg1, String arg2)
        throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ext.DeclHandler#internalEntityDecl(String, String)
     */
    public void internalEntityDecl(String arg0, String arg1)
        throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ContentHandler#endPrefixMapping(String)
     */
    public void endPrefixMapping(String arg0) throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int)
     */
    public void ignorableWhitespace(char[] arg0, int arg1, int arg2)
        throws SAXException
    {
    }

    /**
     * From XSLTC
     * @see org.xml.sax.ContentHandler#processingInstruction(String, String)
     */
    public void processingInstruction(String arg0, String arg1)
        throws SAXException
    {
        if (m_tracer != null)
            super.fireEscapingEvent(arg0, arg1);
    }

    /**
     * @see org.xml.sax.ContentHandler#setDocumentLocator(Locator)
     */
    public void setDocumentLocator(Locator arg0)
    {
    }

    /**
     * @see org.xml.sax.ContentHandler#skippedEntity(String)
     */
    public void skippedEntity(String arg0) throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ContentHandler#startElement(String, String, String, Attributes)
     */
    public void startElement(
        String arg0,
        String arg1,
        String arg2,
        Attributes arg3)
        throws SAXException
    {
        flushPending();
        super.startElement(arg0, arg1, arg2, arg3);
    }

    /**
     * @see org.xml.sax.ext.LexicalHandler#endCDATA()
     */
    public void endCDATA() throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ext.LexicalHandler#endDTD()
     */
    public void endDTD() throws SAXException
    {
    }

    /**
     * @see org.xml.sax.ext.LexicalHandler#startCDATA()
     */
    public void startCDATA() throws SAXException
    {
    }


    /**
     * @see org.xml.sax.ext.LexicalHandler#startEntity(String)
     */
    public void startEntity(String arg0) throws SAXException
    {
    }


    /**
     * From XSLTC
     * @see org.apache.xml.serializer.ExtendedContentHandler#startElement(String)
     */
    public void startElement(
    String elementNamespaceURI,
    String elementLocalName,
    String elementName) throws SAXException
    {
        super.startElement(elementNamespaceURI, elementLocalName, elementName);
    }
    
    public void startElement(
    String elementName) throws SAXException
    {
        super.startElement(elementName);
    }
    

    /**
     * From XSLTC
     * @see org.xml.sax.ContentHandler#endDocument()
     */
    public void endDocument() throws SAXException { 
        
        flushPending();
        m_saxHandler.endDocument();
		
        if (m_tracer != null)
            super.fireEndDoc();
    }
 
    /**
	 *	
     * @see org.apache.xml.serializer.ExtendedContentHandler#characters(String)
     */
    public void characters(String characters) 
    throws SAXException 
    { 
        final int length = characters.length();
        if (length > m_charsBuff.length)
        {
            m_charsBuff = new char[length*2 + 1];
        }
        characters.getChars(0, length, m_charsBuff, 0);
   
        m_saxHandler.characters(m_charsBuff, 0, length);
    
    }
    /**
	 * @see org.xml.sax.ContentHandler#characters(char[], int, int)
     */
    public void characters(char[] characters, int offset, int length)
    throws SAXException 
    { 
    
        m_saxHandler.characters(characters, offset, length);

        // time to fire off characters event
		if (m_tracer != null)
            super.fireCharEvent(characters, offset, length);                
    }

    /**
     * From XSLTC
     */
    public void addAttribute(String name, String value) 
    {
        // do nothing
    }


    public boolean startPrefixMapping(
        String prefix,
        String uri,
        boolean shouldFlush)
        throws SAXException
    {
        // no namespace support for HTML
        return false;
    }


    public void startPrefixMapping(String prefix, String uri)
        throws org.xml.sax.SAXException
    {
        // no namespace support for HTML
    }


    public void namespaceAfterStartElement(
        final String prefix,
        final String uri)
        throws SAXException
    {
        // no namespace support for HTML
    }

}