/**
* Decode the object into a {@code Geometry}
*
* @param object The object to decode
* @return The {@code Geometry}
*/
public static Geometry from(Object object) {
if (object == null) {
return null;
}
try {
if (object instanceof com.vividsolutions.jts.geom.Geometry) {
return JTS.from((com.vividsolutions.jts.geom.Geometry) object);
}
final WkbDecoder decoder = Wkb.newDecoder(Wkb.Dialect.POSTGIS_EWKB_1);
if (object instanceof Blob) {
return decoder.decode(toByteBuffer((Blob) object));
} else if (object instanceof byte[]) {
return decoder.decode(ByteBuffer.from((byte[]) object));
} else if (object instanceof com.vividsolutions.jts.geom.Envelope) {
return toPolygon(JTS.from((com.vividsolutions.jts.geom.Envelope) object));
} else {
throw new IllegalArgumentException(
"Can't convert database object of type " + object.getClass().getCanonicalName());
}
} catch (Exception e) {
LOGGER.warn("Could not convert database object to a Geometry.");
throw new HibernateException(e);
}
}
@Override
@Nullable
public T getValue(ResultSet rs, int startIndex) throws SQLException {
byte[] bytes = rs.getBytes(startIndex);
if (bytes != null) {
byte[] wkb;
if (bytes[0] != 0 && bytes[0] != 1) { // decodes EWKB
wkb = new byte[bytes.length - 32];
System.arraycopy(bytes, 32, wkb, 0, wkb.length);
} else {
wkb = bytes;
}
WkbDecoder decoder = Wkb.newDecoder(Wkb.Dialect.POSTGIS_EWKB_1);
return (T) decoder.decode(ByteBuffer.from(wkb));
} else {
return null;
}
}
public static Geometry toGeometry(Object object) {
if (object == null) {
return null;
}
ByteBuffer buffer = null;
if (object instanceof PGobject) {
String pgValue = ((PGobject) object).getValue();
if (pgValue.charAt(0) == 'S') { // /we have a Wkt value
final WktDecoder decoder = Wkt.newDecoder(Wkt.Dialect.POSTGIS_EWKT_1);
return decoder.decode(pgValue);
} else {
buffer = ByteBuffer.from(pgValue);
final WkbDecoder decoder = Wkb.newDecoder(Wkb.Dialect.POSTGIS_EWKB_1);
return decoder.decode(buffer);
}
}
throw new IllegalStateException(
"Received object of type " + object.getClass().getCanonicalName());
}
