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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.ogc.kml;
import gov.nasa.worldwind.geom.Position;
import gov.nasa.worldwind.util.xml.*;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.XMLEvent;
import java.util.ArrayList;
/**
* Parses KML coordinates elements.
*
* @author tag
* @version $Id: KMLCoordinatesParser.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class KMLCoordinatesParser extends AbstractXMLEventParser
{
public KMLCoordinatesParser()
{
}
public KMLCoordinatesParser(String namespaceURI)
{
super(namespaceURI);
}
@SuppressWarnings( {"UnnecessaryContinue"})
public Position.PositionList parse(XMLEventParserContext ctx, XMLEvent doubleEvent, Object... args)
throws XMLStreamException
{
String s = ctx.getStringParser().parseString(ctx, doubleEvent);
if (s == null || s.length() < 3) // "a,b" is the smallest possible coordinate string
return null;
ArrayList positions = new ArrayList();
KMLCoordinateTokenizer tokenizer = new KMLCoordinateTokenizer(s);
while (tokenizer.hasMoreTokens())
{
try
{
positions.add(tokenizer.nextPosition());
}
catch (NumberFormatException e)
{
continue; // TODO: issue warning?
}
catch (NullPointerException e)
{
continue; // TODO: issue warning?
}
catch (Exception e)
{
continue; // TODO: issue warning
}
}
return new Position.PositionList(positions);
}
}