/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2004-2008, 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.validation.spatial;
import org.geotools.validation.DefaultFeatureValidation;
import org.geotools.validation.ValidationResults;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.Polygon;
/**
* PolygonNoGapsValidation purpose.
*
* <p>
* Ensures Polygon does not have gaps.
* </p>
*
* @author dzwiers, Refractions Research, Inc.
* @author $Author: dmzwiers $ (last modification)
* @source $URL$
* @version $Id$
*/
public class PolygonNoGapsValidation extends DefaultFeatureValidation {
/**
* PolygonNoGapsValidation constructor.
*
* <p>
* Description
* </p>
*/
public PolygonNoGapsValidation() {
super();
}
/**
* Ensure Polygon does not have gaps.
*
* <p></p>
*
* @param feature the Feature to be validated
* @param type the FeatureType of the feature
* @param results storage for the error and warning messages
*
* @return True if no features intersect. If they do then the validation
* failed.
*
* @throws Exception DOCUMENT ME!
*
* @see org.geotools.validation.IntegrityValidation#validate(java.util.Map,
* com.vividsolutions.jts.geom.Envelope,
* org.geotools.validation.ValidationResults)
*/
public boolean validate(SimpleFeature feature,
SimpleFeatureType type,
ValidationResults results){
if(feature != null){
Geometry layer = (Geometry) feature.getDefaultGeometry();
if(layer instanceof Polygon){
Polygon p = (Polygon)layer;
if(p.getNumInteriorRing()!=0){
results.error(feature,"The generated result was had gaps.");
return false;
}
return true;
}
results.error(feature,"The generated result was not of type polygon.");
return false;
}
return true;
}
}