/*
* 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 java.util.Map;
import org.geotools.data.simple.SimpleFeatureSource;
import org.geotools.validation.ValidationResults;
import org.opengis.feature.simple.SimpleFeature;
import com.vividsolutions.jts.geom.Envelope;
import com.vividsolutions.jts.geom.Geometry;
/**
* PolygonNotOverlappingLineValidation purpose.
*
* <p>
* Checks that the polygon is not overlapping the line.
* </p>
*
* @author dzwiers, Refractions Research, Inc.
* @author $Author: dmzwiers $ (last modification)
*
*
* @source $URL$
* @version $Id$
*/
public class PolygonNotOverlappingLineValidation
extends PolygonLineAbstractValidation {
/**
* PolygonNotOverlappingLineValidation constructor.
*
* <p>
* Description
* </p>
*/
public PolygonNotOverlappingLineValidation() {
super();
}
/**
* Check that the polygon is not overlapping the line.
*
* @param layers Map of SimpleFeatureSource by "dataStoreID:typeName"
* @param envelope The bounding box that encloses the unvalidated data
* @param results Used to coallate results information
*
* @return <code>true</code> if all the features pass this test.
*
* @throws Exception DOCUMENT ME!
*/
public boolean validate(Map layers, Envelope envelope,
ValidationResults results) throws Exception {
SimpleFeatureSource polySource1 = (SimpleFeatureSource) layers.get(getPolygonTypeRef());
SimpleFeatureSource polySource2 = (SimpleFeatureSource) layers.get(getRestrictedLineTypeRef());
Object[] poly1 = polySource1.getFeatures().toArray();
Object[] poly2 = polySource2.getFeatures().toArray();
if (!envelope.contains(polySource1.getBounds())) {
results.error((SimpleFeature) poly1[0],
"Polygon Feature Source is not contained within the Envelope provided.");
return false;
}
if (!envelope.contains(polySource2.getBounds())) {
results.error((SimpleFeature) poly1[0],
"Restricted Polygon Feature Source is not contained within the Envelope provided.");
return false;
}
for (int i = 0; i < poly1.length; i++) {
SimpleFeature tmp = (SimpleFeature) poly1[i];
Geometry gt = (Geometry) tmp.getDefaultGeometry();
for (int j = 0; j < poly2.length; j++) {
SimpleFeature tmp2 = (SimpleFeature) poly2[j];
Geometry gt2 = (Geometry) tmp2.getDefaultGeometry();
if (gt2.touches(gt)) {
return false;
}
}
}
return true;
}
}