/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.spatial;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.io.ParseException;
import com.vividsolutions.jts.io.WKTReader;
import org.geolatte.geom.jts.JTS;
import org.hibernate.type.descriptor.WrapperOptions;
import org.hibernate.type.descriptor.java.AbstractTypeDescriptor;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;
import org.hibernate.type.descriptor.java.JavaTypeDescriptorRegistry;
/**
* Descriptor for JTS {@code Geometry}s.
*
* @author Karel Maesen, Geovise BVBA
* creation-date: 7/27/11
*/
public class JTSGeometryJavaTypeDescriptor extends AbstractTypeDescriptor<Geometry> {
/**
* An instance of this descriptor
*/
public static final JavaTypeDescriptor<Geometry> INSTANCE = new JTSGeometryJavaTypeDescriptor();
/**
* Initialize a type descriptor for the geolatte-geom {@code Geometry} type.
*/
public JTSGeometryJavaTypeDescriptor() {
super( Geometry.class );
JavaTypeDescriptorRegistry.INSTANCE.addDescriptor( this );
}
@Override
public String toString(Geometry value) {
return value.toText();
}
@Override
public Geometry fromString(String string) {
final WKTReader reader = new WKTReader();
try {
return reader.read( string );
}
catch ( ParseException e ) {
throw new RuntimeException( String.format( "Can't parse string %s as WKT", string ) );
}
}
@Override
public <X> X unwrap(Geometry value, Class<X> type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Geometry.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( org.geolatte.geom.Geometry.class.isAssignableFrom( type ) ) {
return (X) JTS.from( value );
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) toString( value );
}
throw unknownUnwrap( type );
}
@Override
public <X> Geometry wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( Geometry.class.isInstance( value ) ) {
return (Geometry) value;
}
if ( org.geolatte.geom.Geometry.class.isInstance( value ) ) {
return JTS.to( (org.geolatte.geom.Geometry) value );
}
if ( String.class.isInstance( value ) ) {
return fromString( (String) value );
}
throw unknownWrap( value.getClass() );
}
}