/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2010, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library 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
* Lesser General Public License for more details.
*/
package org.geotools.geojson.feature;
import java.io.IOException;
import org.geotools.geojson.HandlerBase;
import org.geotools.geojson.IContentHandler;
import org.geotools.referencing.CRS;
import org.json.simple.parser.ParseException;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
public class CRSHandler extends HandlerBase implements IContentHandler<CoordinateReferenceSystem> {
CoordinateReferenceSystem crs;
int state = 0;
public boolean startObjectEntry(String key) throws ParseException, IOException {
if ("properties".equals(key)) {
state = 1;
}
else if ("name".equals(key) && state == 1) {
state = 2;
}
return true;
}
public boolean primitive(Object value) throws ParseException, IOException {
if (state == 2) {
try {
crs = CRS.decode(value.toString());
}
catch(Exception e) {
throw (IOException) new IOException("Error parsing " + value + " as crs id").initCause(e);
}
state = -1;
}
return true;
}
public CoordinateReferenceSystem getValue() {
return crs;
}
}