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Java example source code file (ToTextSAXHandler.java)

This example Java source code file (ToTextSAXHandler.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

attributes, dom, ioexception, lexicalhandler, outputstream, properties, sax, saxexception, string, tosaxhandler, totextsaxhandler, util, writer, xslattribute

The ToTextSAXHandler.java Java example source code

/*
 * 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
    }

}

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