/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 *

 * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC.

 */

package com.sun.xml.internal.fastinfoset.tools;

import com.sun.xml.internal.fastinfoset.QualifiedName;

import java.util.ArrayList;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.XMLStreamWriter;

import org.xml.sax.Attributes;

import org.xml.sax.Locator;

import org.xml.sax.SAXException;

import org.xml.sax.ext.LexicalHandler;

import org.xml.sax.helpers.DefaultHandler;

public class SAX2StAXWriter extends DefaultHandler implements LexicalHandler {

    private static final Logger logger = Logger.getLogger(SAX2StAXWriter.class.getName());

    /**

     * XML stream writer where events are pushed.

     */

    XMLStreamWriter _writer;

    /**

     * List of namespace decl for upcoming element.

     */

    ArrayList _namespaces = new ArrayList();

    public SAX2StAXWriter(XMLStreamWriter writer) {

        _writer = writer;

    }

    public XMLStreamWriter getWriter() {

        return _writer;

    }

    public void startDocument() throws SAXException {

        try {

            _writer.writeStartDocument();

        }

        catch (XMLStreamException e) {

            throw new SAXException(e);

        }

    }

    public void endDocument() throws SAXException {

        try {

            _writer.writeEndDocument();

            _writer.flush();

        }

        catch (XMLStreamException e) {

            throw new SAXException(e);

        }

    }

    public void characters(char[] ch, int start, int length)

        throws SAXException

    {

        try {

            _writer.writeCharacters(ch, start, length);

        }

        catch (XMLStreamException e) {

            throw new SAXException(e);

        }

    }

    public void startElement(String namespaceURI, String localName,

        String qName, Attributes atts) throws SAXException

    {

        try {

            int k = qName.indexOf(':');

            String prefix = (k > 0) ? qName.substring(0, k) : "";

            _writer.writeStartElement(prefix, localName, namespaceURI);

            int length = _namespaces.size();

            for (int i = 0; i < length; i++) {

                QualifiedName nsh = (QualifiedName) _namespaces.get(i);

                _writer.writeNamespace(nsh.prefix, nsh.namespaceName);

            }

            _namespaces.clear();

            length = atts.getLength();

            for (int i = 0; i < length; i++) {

                _writer.writeAttribute(atts.getURI(i),

                                       atts.getLocalName(i),

                                       atts.getValue(i));

            }

        }

        catch (XMLStreamException e) {

            throw new SAXException(e);

        }

    }

    public void endElement(String namespaceURI, String localName,

        String qName) throws SAXException

    {

        try {

            _writer.writeEndElement();

        }

        catch (XMLStreamException e) {

            logger.log(Level.FINE, "Exception on endElement", e);

            throw new SAXException(e);

        }

    }

    public void startPrefixMapping(String prefix, String uri)

        throws SAXException

    {

    // Commented as in StAX NS are declared for current element?

    // now _writer.setPrefix() is invoked in _writer.writeNamespace()

//        try {

//            _writer.setPrefix(prefix, uri);

            _namespaces.add(new QualifiedName(prefix, uri));

//        }

//        catch (XMLStreamException e) {

//            throw new SAXException(e);

//        }

    }

    public void endPrefixMapping(String prefix) throws SAXException {

    }

    public void ignorableWhitespace(char[] ch, int start, int length)

        throws SAXException

    {

        characters(ch, start, length);

    }

    public void processingInstruction(String target, String data)

        throws SAXException

    {

        try {

            _writer.writeProcessingInstruction(target, data);

        }

        catch (XMLStreamException e) {

            throw new SAXException(e);

        }

    }

    public void setDocumentLocator(Locator locator) {

    }

    public void skippedEntity(String name) throws SAXException {

    }

    public void comment(char[] ch, int start, int length)

        throws SAXException

    {

        try {

            _writer.writeComment(new String(ch, start, length));

        }

        catch (XMLStreamException e) {

            throw new SAXException(e);

        }

    }

    public void endCDATA() throws SAXException {

    }

    public void endDTD() throws SAXException {

    }

    public void endEntity(String name) throws SAXException {

    }

    public void startCDATA() throws SAXException {

    }

    public void startDTD(String name, String publicId, String systemId) throws SAXException {

    }

    public void startEntity(String name) throws SAXException {

    }

}