| gvSIG desktop 1

package org.gvsig.gpe.xml.stream;

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

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

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program 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 for more details.

*

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

* along with this program; if not, write to the Free Software

* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*

* For more information, contact:

*

*  Generalitat Valenciana

*   Conselleria d'Infraestructures i Transport

*   Av. Blasco Ib??ez, 50

*   46010 VALENCIA

*   SPAIN

*

*      +34 963862235

*   gvsig@gva.es

*      www.gvsig.gva.es

*

*    or

*

*   IVER T.I. S.A

*   Salamanca 50

*   46005 Valencia

*   Spain

*

*   +34 963163400

*   dac@iver.es

*/

/* CVS MESSAGES:

*

* $Id: XmlPullStreamReader.java 19593 2008-03-12 17:23:30Z groldan $

* $Log$

*/

import java.io.IOException;

import java.io.InputStream;

import org.kxml2.io.KXmlParser;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

/**

 * An {@link IXmlStreamReader} adapter for xml textual parsing using a

 * {@link XmlPullParser pull parser}.

 * 

 * @author Gabriel Roldan (TOPP)

 * @version $Id: XmlPullStreamReader.java 19593 2008-03-12 17:23:30Z groldan $

 */

public class XmlPullStreamReader implements IXmlStreamReader {

    private XmlPullParser parser;

    public XmlPullStreamReader() {

        parser = new KXmlParser();

    }

    public void setInput(InputStream inputStream, String encoding) throws XmlStreamException {

        try {

            parser.setInput(inputStream, encoding);

        } catch (XmlPullParserException e) {

            throw new XmlStreamException(e);

        }

    }

    public int getAttributeCount() {

        return parser.getAttributeCount();

    }

    public String getAttributeName(int i) {

        return parser.getAttributeName(i);

    }

    public String getAttributeValue(int i) {

        return parser.getAttributeValue(i);

    }

    public int getEventType() throws XmlStreamException {

        // TODO: improve this mapping

        int xmlPullEventType;

        try {

            xmlPullEventType = parser.getEventType();

        } catch (XmlPullParserException e) {

            throw new XmlStreamException(e);

        }

        return pullEventToGpeEventType(xmlPullEventType);

    }

    public String getName() {

        return parser.getName();

    }

    public String getText() {

        return parser.getText();

    }

    public boolean isWhitespace() throws XmlStreamException {

        try {

            return parser.isWhitespace();

        } catch (XmlPullParserException e) {

            throw new XmlStreamException(e);

        }

    }

    public int next() throws XmlStreamException {

        int xmlPullEventType;

        try {

            xmlPullEventType = parser.next();

        } catch (XmlPullParserException e) {

            throw new XmlStreamException(e);

        } catch (IOException e) {

            throw new XmlStreamException(e);

        }

        return pullEventToGpeEventType(xmlPullEventType);

    }

    private int pullEventToGpeEventType(int xmlPullEventType) {

        switch (xmlPullEventType) {

        case XmlPullParser.START_DOCUMENT:

            return START_DOCUMENT;

        case XmlPullParser.END_DOCUMENT:

            return END_DOCUMENT;

        case XmlPullParser.START_TAG:

            return START_TAG;

        case XmlPullParser.END_TAG:

            return END_TAG;

        case XmlPullParser.TEXT:

            return TEXT;

        case XmlPullParser.CDSECT:

            return CDSECT;

        case XmlPullParser.ENTITY_REF:

            return ENTITY_REF;

        case XmlPullParser.IGNORABLE_WHITESPACE:

            return IGNORABLE_WHITESPACE;

        case XmlPullParser.PROCESSING_INSTRUCTION:

            return PROCESSING_INSTRUCTION;

        case XmlPullParser.COMMENT:

            return COMMENT;

        case XmlPullParser.DOCDECL:

            return DOCDECL;

        default:

            throw new IllegalStateException("Unknown tag type, this should't happen!: "

                    + xmlPullEventType);

        }

    }

}