/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.web.wicket;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.wicket.model.IModel;
import org.geotools.referencing.CRS;
import org.geotools.util.logging.Logging;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
/**
* A model allowing to edit an SRS property with the CRSPanel (by dynamically
* converting it into a {@link CoordinateReferenceSystem} and back)
*/
@SuppressWarnings("serial")
public class SRSToCRSModel implements IModel {
private static final Logger LOGGER = Logging.getLogger(SRSToCRSModel.class);
IModel srsModel;
public SRSToCRSModel(IModel srsModel) {
this.srsModel = srsModel;
}
public Object getObject() {
String srs = (String) srsModel.getObject();
if(srs == null || "UNKNOWN".equals(srs))
return null;
try {
return CRS.decode(srs);
} catch(Exception e) {
return null;
}
}
public void setObject(Object object) {
CoordinateReferenceSystem crs = (CoordinateReferenceSystem) object;
try {
Integer epsgCode = CRS.lookupEpsgCode(crs, false);
String srs = epsgCode != null ? "EPSG:" + epsgCode : null;
srsModel.setObject(srs);
} catch(Exception e) {
LOGGER.log(Level.INFO, "Failed to lookup the SRS code for " + crs);
srsModel.setObject(null);
}
}
public void detach() {
srsModel.detach();
}
}