/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
* (C) 2009, Geomatys
*
* 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.geotoolkit.filter.binaryspatial;
import com.vividsolutions.jts.geom.Geometry;
import java.util.logging.Level;
import javax.measure.UnitConverter;
import javax.measure.Unit;
import org.geotoolkit.util.StringUtilities;
import org.opengis.filter.FilterVisitor;
import org.opengis.filter.expression.Expression;
import org.opengis.filter.spatial.Beyond;
import org.opengis.util.FactoryException;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.referencing.operation.TransformException;
import org.apache.sis.util.logging.Logging;
/**
* Immutable "beyond" filter.
*
* @author Johann Sorel (Geomatys)
* @module
*/
public class DefaultBeyond extends AbstractBinarySpatialOperator<Expression,Expression> implements Beyond {
private final double distance;
private final Unit unit;
private final String strUnit;
public DefaultBeyond(final Expression left, final Expression right, final double distance, final String unit) {
super(left,right);
this.distance = distance;
this.strUnit = unit;
this.unit = toUnit(unit);
}
/**
* {@inheritDoc }
*/
@Override
public double getDistance() {
return distance;
}
/**
* {@inheritDoc }
*/
@Override
public String getDistanceUnits() {
return strUnit;
}
/**
* {@inheritDoc }
*/
@Override
public boolean evaluate(final Object object) {
final Geometry leftGeom = toGeometry(object, left);
final Geometry rightGeom = toGeometry(object, right);
if(leftGeom == null || rightGeom == null){
return false;
}
try {
final Object[] values = toSameCRS(leftGeom, rightGeom, unit);
if(values[2] == null){
//no matching crs was found, assume both have the same and valid unit
return !leftGeom.isWithinDistance(rightGeom, distance);
}else{
final Geometry leftMatch = (Geometry) values[0];
final Geometry rightMatch = (Geometry) values[1];
final CoordinateReferenceSystem crs = (CoordinateReferenceSystem) values[2];
final UnitConverter converter = unit.getConverterTo(crs.getCoordinateSystem().getAxis(0).getUnit());
return !leftMatch.isWithinDistance(rightMatch, converter.convert(distance));
}
} catch (FactoryException | TransformException ex) {
Logging.getLogger("org.geotoolkit.filter.binaryspatial").log(Level.WARNING, null, ex);
return false;
}
}
/**
* {@inheritDoc }
*/
@Override
public Object accept(final FilterVisitor visitor, final Object extraData) {
return visitor.visit(this, extraData);
}
/**
* {@inheritDoc }
*/
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("Beyond (distance=");
sb.append(distance).append(" ,unit=").append(strUnit).append(")\n");
sb.append(StringUtilities.toStringTree(left,right));
return sb.toString();
}
/**
* {@inheritDoc }
*/
@Override
public boolean equals(final Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final DefaultBeyond other = (DefaultBeyond) obj;
if (this.left != other.left && !this.left.equals(other.left)) {
return false;
}
if (this.right != other.right && !this.right.equals(other.right)) {
return false;
}
if (this.distance != other.distance) {
return false;
}
if (!this.strUnit.equals(other.strUnit)) {
return false;
}
return true;
}
/**
* {@inheritDoc }
*/
@Override
public int hashCode() {
int hash = 16;
hash = 71 * hash + this.left.hashCode();
hash = 71 * hash + this.right.hashCode();
hash = 71 * hash + (int)this.distance;
hash = 71 * hash + this.strUnit.hashCode();
return hash;
}
}