org.deegree.model.spatialschema
Class ByteUtils

java.lang.Object
  org.deegree.model.spatialschema.ByteUtils

public class ByteUtils
extends Object

Utilities for reading and writing the components of binary files.

Version:

$Revision: 6259 $ $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $ modified Last changes:
25.11.1999 ap: memory allocation dynaminized
17.01.2000 ap: method SHPPoint readPoint(byte[] b, int off) modified
17.01.2000 ap: method SHPEnvelope readBox(byte[] b, int off) modified
17.01.2000 ap: method writePoint(..) modified
25.01.2000 ap: method writeBELong(..) added
25.01.2000 ap: method writeBEDouble(..) added
25.01.2000 ap: method readBELong(..) added
25.01.2000 ap: method readBEDouble(..) added
22.04.2000 ap: method readBEShort(byte[] b, int off) added
22.04.2000 ap: method readLEShort(byte[] b, int off) added
22.04.2000 ap: method writeBEShort(byte[] b, int off) added
22.04.2000 ap: method writeLEShort(byte[] b, int off) added

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, $Revision: 6259 $ $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $

Author:

Tom Mitchell , Andreas Poth

Constructor Summary

ByteUtils()

Method Summary

static double	readBEDouble(byte[] b, int off) method: readBEDouble(byte[] b, int off) Reads a big endian double.
static float	readBEFloat(byte[] b, int off) Reads a big endian float.
static int	readBEInt(byte[] b, int off) Reads a big endian integer.
static long	readBELong(byte[] b, int off) method: readBELong(byte[] b, int off) Reads a little endian 8 byte integer.
static int	readBEShort(byte[] b, int off) method: readBEShort(byte[] b, int off) Reads a big endian small integer.
static double	readLEDouble(byte[] b, int off) method: readLEDouble(byte[] b, int off) Reads a little endian double.
static float	readLEFloat(byte[] b, int off) Reads a little endian float.
static int	readLEInt(byte[] b, int off) Reads a little endian integer.
static long	readLELong(byte[] b, int off) method: readLELong(byte[] b, int off) Reads a little endian 8 byte integer.
static int	readLEShort(byte[] b, int off) method: readLEShort(byte[] b, int off) Reads a little endian small integer.
static int	writeBEDouble(byte[] b, int off, double val) method: writeBEDouble(byte[] b, int off, double val) Writes the given double to the given buffer at the given location in big endian format.
static int	writeBEInt(byte[] b, int off, int val) method: writeBEInt(byte[] b, int off, int val) Writes the given integer to the given buffer at the given location in big endian format.
static int	writeBELong(byte[] b, int off, long val) method: writeBELong(byte[] b, int off, long val) Writes the given long to the given buffer at the given location in big endian format.
static int	writeBEShort(byte[] b, int off, int val) method: writeBEShort(byte[] b, int off, int val) Writes the given short to the given buffer at the given location in big endian format.
static int	writeLEDouble(byte[] b, int off, double val) method: writeLEDouble(byte[] b, int off, double val) Writes the given double to the given buffer at the given location in little endian format.
static int	writeLEInt(byte[] b, int off, int val) method: writeLEInt(byte[] b, int off, int val) Writes the given integer to the given buffer at the given location in little endian format.
static int	writeLELong(byte[] b, int off, long val) method: writeLELong(byte[] b, int off, long val) Writes the given long to the given buffer at the given location in little endian format.
static int	writeLEShort(byte[] b, int off, int val) method: writeLEShort(byte[] b, int off, int val) Writes the given short to the given buffer at the given location in big endian format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ByteUtils

public ByteUtils()

Method Detail

readBEShort

public static int readBEShort(byte[] b,
                              int off)

method: readBEShort(byte[] b, int off)
Reads a big endian small integer.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the int resides

Returns:

the int read from the buffer at the offset location not tested!

readLEShort

public static int readLEShort(byte[] b,
                              int off)

method: readLEShort(byte[] b, int off)
Reads a little endian small integer.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the int resides

Returns:

the int read from the buffer at the offset location not tested!

readBEInt

public static int readBEInt(byte[] b,
                            int off)

Reads a big endian integer.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the int resides

Returns:

the int read from the buffer at the offset location

readLEInt

public static int readLEInt(byte[] b,
                            int off)

Reads a little endian integer.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the int resides

Returns:

the int read from the buffer at the offset location

readLELong

public static long readLELong(byte[] b,
                              int off)

method: readLELong(byte[] b, int off)
Reads a little endian 8 byte integer.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the long resides

Returns:

the long read from the buffer at the offset location

readBELong

public static long readBELong(byte[] b,
                              int off)

method: readBELong(byte[] b, int off)
Reads a little endian 8 byte integer.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the long resides

Returns:

the long read from the buffer at the offset location

readLEFloat

public static float readLEFloat(byte[] b,
                                int off)

Reads a little endian float.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the float resides

Returns:

the float read from the buffer at the offset location

readBEFloat

public static float readBEFloat(byte[] b,
                                int off)

Reads a big endian float.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the float resides

Returns:

the float read from the buffer at the offset location

readLEDouble

public static double readLEDouble(byte[] b,
                                  int off)

method: readLEDouble(byte[] b, int off)
Reads a little endian double.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the double resides

Returns:

the double read from the buffer at the offset location

readBEDouble

public static double readBEDouble(byte[] b,
                                  int off)

method: readBEDouble(byte[] b, int off)
Reads a big endian double.

Parameters:

b - the raw data buffer

off - the offset into the buffer where the double resides

Returns:

the double read from the buffer at the offset location

writeBEShort

public static int writeBEShort(byte[] b,
                               int off,
                               int val)

method: writeBEShort(byte[] b, int off, int val)
Writes the given short to the given buffer at the given location in big endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the short to write

Returns:

the number of bytes written not tested!

writeLEShort

public static int writeLEShort(byte[] b,
                               int off,
                               int val)

method: writeLEShort(byte[] b, int off, int val)
Writes the given short to the given buffer at the given location in big endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the short to write

Returns:

the number of bytes written not tested!

writeBEInt

public static int writeBEInt(byte[] b,
                             int off,
                             int val)

method: writeBEInt(byte[] b, int off, int val)
Writes the given integer to the given buffer at the given location in big endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the integer to write

Returns:

the number of bytes written

writeLEInt

public static int writeLEInt(byte[] b,
                             int off,
                             int val)

method: writeLEInt(byte[] b, int off, int val)
Writes the given integer to the given buffer at the given location in little endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the integer to write

Returns:

the number of bytes written

writeLELong

public static int writeLELong(byte[] b,
                              int off,
                              long val)

method: writeLELong(byte[] b, int off, long val)
Writes the given long to the given buffer at the given location in little endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the long to write

Returns:

the number of bytes written

writeBELong

public static int writeBELong(byte[] b,
                              int off,
                              long val)

method: writeBELong(byte[] b, int off, long val)
Writes the given long to the given buffer at the given location in big endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the long to write

Returns:

the number of bytes written

writeLEDouble

public static int writeLEDouble(byte[] b,
                                int off,
                                double val)

method: writeLEDouble(byte[] b, int off, double val)
Writes the given double to the given buffer at the given location in little endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the double to write

Returns:

the number of bytes written

writeBEDouble

public static int writeBEDouble(byte[] b,
                                int off,
                                double val)

method: writeBEDouble(byte[] b, int off, double val)
Writes the given double to the given buffer at the given location in big endian format.

Parameters:

b - the data buffer

off - the offset into the buffer where writing should occur

val - the double to write

Returns:

the number of bytes written