/*
* Copyright (c) 2016 wetransform GmbH
*
* All rights reserved. This program and the accompanying materials are made
* available under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution. If not, see <http://www.gnu.org/licenses/>.
*
* Contributors:
* wetransform GmbH <http://www.wetransform.to>
*/
package eu.esdihumboldt.hale.io.gml.geometry.handler;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.xml.namespace.QName;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.Point;
import de.fhg.igd.slf4jplus.ALogger;
import de.fhg.igd.slf4jplus.ALoggerFactory;
import eu.esdihumboldt.hale.common.convert.ConversionUtil;
import eu.esdihumboldt.hale.common.core.io.IOProvider;
import eu.esdihumboldt.hale.common.instance.geometry.DefaultGeometryProperty;
import eu.esdihumboldt.hale.common.instance.geometry.InterpolationHelper;
import eu.esdihumboldt.hale.common.instance.helper.PropertyResolver;
import eu.esdihumboldt.hale.common.instance.model.Instance;
import eu.esdihumboldt.hale.common.schema.geometry.CRSDefinition;
import eu.esdihumboldt.hale.common.schema.geometry.GeometryProperty;
import eu.esdihumboldt.hale.common.schema.model.TypeConstraint;
import eu.esdihumboldt.hale.common.schema.model.constraint.type.Binding;
import eu.esdihumboldt.hale.common.schema.model.constraint.type.GeometryType;
import eu.esdihumboldt.hale.io.gml.geometry.FixedConstraintsGeometryHandler;
import eu.esdihumboldt.hale.io.gml.geometry.GMLGeometryUtil;
import eu.esdihumboldt.hale.io.gml.geometry.GeometryNotSupportedException;
import eu.esdihumboldt.hale.io.gml.geometry.constraint.GeometryFactory;
import eu.esdihumboldt.util.geometry.interpolation.InterpolationAlgorithm;
import eu.esdihumboldt.util.geometry.interpolation.model.Angle;
import eu.esdihumboldt.util.geometry.interpolation.model.Arc;
import eu.esdihumboldt.util.geometry.interpolation.model.impl.ArcByCenterPointImpl;
/**
* Handler for circle by center point geometries
*
* @author Arun
*/
public class CircleByCenterPointHandler extends FixedConstraintsGeometryHandler {
private static final String CIRCLE_BY_CENTER_POINT_TYPE = "CircleByCenterPointType";
private static final ALogger log = ALoggerFactory.getLogger(CircleByCenterPointHandler.class);
@Override
public Object createGeometry(Instance instance, int srsDimension, IOProvider reader)
throws GeometryNotSupportedException {
PointHandler handler = new PointHandler();
// XXX support for different types of line strings in one instance (we
// support only one type per instance!)
Coordinate[] controlCoord = null;
double radius = 0;
// to parse coordinates of a line string
// for use with GML 2, 3, 3.1, 3.2
Collection<Object> values = PropertyResolver.getValues(instance, "coordinates", false);
if (values != null && !values.isEmpty()) {
Object value = values.iterator().next();
if (value instanceof Instance) {
try {
controlCoord = GMLGeometryUtil.parseCoordinates((Instance) value);
} catch (ParseException e) {
throw new GeometryNotSupportedException("Could not parse coordinates", e);
}
}
}
// to parse several pos of a line string
// for use with GML 3, 3.2
if (controlCoord == null || controlCoord.length == 0) {
values = PropertyResolver.getValues(instance, "pos", false);
if (values != null && !values.isEmpty()) {
Iterator<Object> iterator = values.iterator();
List<Coordinate> cs = new ArrayList<Coordinate>();
while (iterator.hasNext()) {
Object value = iterator.next();
if (value instanceof Instance) {
Coordinate c = GMLGeometryUtil.parseDirectPosition((Instance) value);
if (c != null) {
cs.add(c);
}
}
}
controlCoord = cs.toArray(new Coordinate[cs.size()]);
}
}
// to parse a posList of a line string
// for use with GML 3.1, 3.2
if (controlCoord == null || controlCoord.length == 0) {
values = PropertyResolver.getValues(instance, "posList", false);
if (values != null && !values.isEmpty()) {
Iterator<Object> iterator = values.iterator();
Object value = iterator.next();
if (value instanceof Instance) {
controlCoord = GMLGeometryUtil.parsePosList((Instance) value, srsDimension);
}
}
}
// to parse Point Representations of a line string
// for use with GML 3, 3.1, 3.2
if (controlCoord == null || controlCoord.length == 0) {
values = PropertyResolver.getValues(instance, "pointRep.Point", false);
if (values != null && !values.isEmpty()) {
Iterator<Object> iterator = values.iterator();
List<Coordinate> cs = new ArrayList<Coordinate>();
while (iterator.hasNext()) {
Object value = iterator.next();
if (value instanceof Instance) {
try {
@SuppressWarnings("unchecked")
DefaultGeometryProperty<Point> point = (DefaultGeometryProperty<Point>) handler
.createGeometry((Instance) value, srsDimension, reader);
cs.add(point.getGeometry().getCoordinate());
} catch (GeometryNotSupportedException e) {
throw new GeometryNotSupportedException(
"Could not parse Point Representation", e);
}
}
}
controlCoord = cs.toArray(new Coordinate[cs.size()]);
}
}
// to parse Point Properties of a line string
// for use with GML 3.1
if (controlCoord == null || controlCoord.length == 0) {
values = PropertyResolver.getValues(instance, "pointProperty.Point", false);
if (values != null && !values.isEmpty()) {
Iterator<Object> iterator = values.iterator();
List<Coordinate> cs = new ArrayList<Coordinate>();
while (iterator.hasNext()) {
Object value = iterator.next();
if (value instanceof Instance) {
try {
@SuppressWarnings("unchecked")
DefaultGeometryProperty<Point> point = (DefaultGeometryProperty<Point>) handler
.createGeometry((Instance) value, srsDimension, reader);
cs.add(point.getGeometry().getCoordinate());
} catch (GeometryNotSupportedException e) {
throw new GeometryNotSupportedException(
"Could not parse Point Property", e);
}
}
}
controlCoord = cs.toArray(new Coordinate[cs.size()]);
}
}
// to parse coord of a line string
// for use with GML2, 3, 3.1, 3.2
if (controlCoord == null || controlCoord.length == 0) {
values = PropertyResolver.getValues(instance, "coord", false);
if (values != null && !values.isEmpty()) {
Iterator<Object> iterator = values.iterator();
List<Coordinate> cs = new ArrayList<Coordinate>();
while (iterator.hasNext()) {
Object value = iterator.next();
if (value instanceof Instance) {
Coordinate c = GMLGeometryUtil.parseCoord((Instance) value);
if (c != null) {
cs.add(c);
}
}
}
controlCoord = cs.toArray(new Coordinate[cs.size()]);
}
}
values = PropertyResolver.getValues(instance, "radius", false);
if (values != null && !values.isEmpty()) {
Object value = values.iterator().next();
if (value instanceof Instance) {
// ##TODO :: need to check with real time data
radius = ConversionUtil.getAs(((Instance) value).getValue(), Double.class);
}
}
if (controlCoord != null && controlCoord.length != 0 && radius != 0) {
CRSDefinition crsDef = GMLGeometryUtil.findCRS(instance);
// create Arc representing a circle
Arc arc = new ArcByCenterPointImpl(controlCoord[0], radius, Angle.fromDegrees(0),
Angle.fromDegrees(0), true);
// get interpolation algorithm
InterpolationAlgorithm interpol = InterpolationHelper.getInterpolation(reader,
getGeometryFactory());
LineString interpolatedCircle = interpol.interpolateArc(arc);
if (interpolatedCircle == null) {
log.error("Circle could be not interpolated to Linestring");
return null;
}
return new DefaultGeometryProperty<LineString>(crsDef, interpolatedCircle);
}
throw new GeometryNotSupportedException();
}
/**
* @see eu.esdihumboldt.hale.io.gml.geometry.FixedConstraintsGeometryHandler#initConstraints()
*/
@Override
protected Collection<? extends TypeConstraint> initConstraints() {
Collection<TypeConstraint> constraints = new ArrayList<TypeConstraint>(2);
constraints.add(Binding.get(GeometryProperty.class));
constraints.add(GeometryType.get(LineString.class));
constraints.add(new GeometryFactory(this));
return constraints;
}
/**
* @see eu.esdihumboldt.hale.io.gml.geometry.AbstractGeometryHandler#initSupportedTypes()
*/
@Override
protected Set<? extends QName> initSupportedTypes() {
Set<QName> types = new HashSet<QName>();
types.add(new QName(NS_GML, CIRCLE_BY_CENTER_POINT_TYPE));
types.add(new QName(NS_GML_32, CIRCLE_BY_CENTER_POINT_TYPE));
return types;
}
}