/** * Reads a single {@link Geometry} in WKB format from a byte array. * * @param bytes the byte array to read from * @return the geometry read * @throws ParseException if the WKB is ill-formed */ public Geometry read(byte[] bytes) throws ParseException { // possibly reuse the ByteArrayInStream? // don't throw IOExceptions, since we are not doing any I/O try { return read(new ByteArrayInStream(bytes)); } catch (IOException ex) { throw new RuntimeException("Unexpected IOException caught: " + ex.getMessage()); } }
public Geometry read(byte[] bytes) throws IOException { return read(new ByteArrayInStream(bytes)); }
public Geometry read(byte[] bytes) throws IOException { return read(new ByteArrayInStream(bytes)); }
/** * Reads a single {@link Geometry} in WKB format from a byte array. * * @param bytes the byte array to read from * @return the geometry read * @throws ParseException if the WKB is ill-formed */ public Geometry read(byte[] bytes) throws ParseException { // possibly reuse the ByteArrayInStream? // don't throw IOExceptions, since we are not doing any I/O try { return read(new ByteArrayInStream(bytes)); } catch (IOException ex) { throw new RuntimeException("Unexpected IOException caught: " + ex.getMessage()); } }
/** * Reads a single {@link Geometry} from a byte array. * * @param bytes the byte array to read from * @return the geometry read * @throws ParseException if a parse exception occurs */ public Geometry read(byte[] bytes) throws ParseException { // possibly reuse the ByteArrayInStream? // don't throw IOExceptions, since we are not doing any I/O try { return read(new ByteArrayInStream(bytes)); } catch (IOException ex) { throw new RuntimeException("Unexpected IOException caught: " + ex.getMessage()); } }
byte[] bytes = rs.getBytes(1); ByteOrderDataInStream dis = new ByteOrderDataInStream(); dis.setInStream(new ByteArrayInStream(bytes)); byte byteOrder = dis.readByte();
/** * Read the first bytes of Geometry WKB. * @param bytes WKB Bytes * @return Geometry MetaData * @throws IOException If WKB meta is invalid (do not check the Geometry) */ public static GeometryMetaData getMetaDataFromWKB(byte[] bytes) throws IOException { ByteOrderDataInStream dis = new ByteOrderDataInStream(); dis.setInStream(new ByteArrayInStream(bytes)); // determine byte order byte byteOrderWKB = dis.readByte(); // always set byte order, since it may change from geometry to geometry int byteOrder = byteOrderWKB == WKBConstants.wkbNDR ? ByteOrderValues.LITTLE_ENDIAN : ByteOrderValues.BIG_ENDIAN; dis.setOrder(byteOrder); int typeInt = dis.readInt(); int geometryType = typeInt & 0xff; // determine if Z values are present boolean hasZ = (typeInt & 0x80000000) != 0; int inputDimension = hasZ ? 3 : 2; // determine if SRIDs are present boolean hasSRID = (typeInt & 0x20000000) != 0; int SRID = 0; if (hasSRID) { SRID = dis.readInt(); } return new GeometryMetaData(inputDimension, hasSRID, hasZ, geometryType, SRID); } }
/** * Read the first bytes of Geometry WKB. * @param bytes WKB Bytes * @return Geometry MetaData * @throws IOException If WKB meta is invalid (do not check the Geometry) */ public static GeometryMetaData getMetaDataFromWKB(byte[] bytes) throws IOException { ByteOrderDataInStream dis = new ByteOrderDataInStream(); dis.setInStream(new ByteArrayInStream(bytes)); // determine byte order byte byteOrderWKB = dis.readByte(); // always set byte order, since it may change from geometry to geometry int byteOrder = byteOrderWKB == WKBConstants.wkbNDR ? ByteOrderValues.LITTLE_ENDIAN : ByteOrderValues.BIG_ENDIAN; dis.setOrder(byteOrder); int typeInt = dis.readInt(); int geometryType = typeInt & 0xff; // determine if Z values are present boolean hasZ = (typeInt & 0x80000000) != 0; int inputDimension = hasZ ? 3 : 2; // determine if SRIDs are present boolean hasSRID = (typeInt & 0x20000000) != 0; int SRID = 0; if (hasSRID) { SRID = dis.readInt(); } return new GeometryMetaData(inputDimension, hasSRID, hasZ, geometryType, SRID); } }