/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * Copyright 2001-2004 The Apache Software Foundation.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

/*

 * $Id: ToTextSAXHandler.java,v 1.3 2005/09/28 13:49:08 pvedula Exp $

 */

package com.sun.org.apache.xml.internal.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;

/**

 * This class converts SAX-like event to SAX events for

 * xsl:output method "text".

 *

 * This class is only to be used internally. This class is not a public API.

 *

 * @xsl.usage internal

 */

public final class ToTextSAXHandler extends ToSAXHandler

{

    /**

     * From XSLTC

     * @see 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 Serializer#getOutputFormat()

     */

    public Properties getOutputFormat()

    {

        return null;

    }

    /**

     * @see Serializer#getOutputStream()

     */

    public OutputStream getOutputStream()

    {

        return null;

    }

    /**

     * @see 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 Serializer#reset()

     */

    public boolean reset()

    {

        return false;

    }

    /**

     * @see DOMSerializer#serialize(Node)

     */

    public void serialize(Node node) throws IOException

    {

    }

    /**

     * @see SerializationHandler#setEscaping(boolean)

     */

    public boolean setEscaping(boolean escape)

    {

        return false;

    }

    /**

     * @see SerializationHandler#setIndent(boolean)

     */

    public void setIndent(boolean indent)

    {

    }

    /**

     * @see Serializer#setOutputFormat(Properties)

     */

    public void setOutputFormat(Properties format)

    {

    }

    /**

     * @see Serializer#setOutputStream(OutputStream)

     */

    public void setOutputStream(OutputStream output)

    {

    }

    /**

     * @see Serializer#setWriter(Writer)

     */

    public void setWriter(Writer writer)

    {

    }

    /**

     * @see ExtendedContentHandler#addAttribute(String, String, String, String, String)

     */

    public void addAttribute(

        String uri,

        String localName,

        String rawName,

        String type,

        String value,

        boolean XSLAttribute)

    {

    }

    /**

     * @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)

    {

        super.setDocumentLocator(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 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 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

    }

}