Package org.geotools.data.vpf.util

Class DataUtils

Object

DataUtils

All Implemented Interfaces:

DataTypesDefinition

public class DataUtils
extends Object
implements DataTypesDefinition

Class DataUtils.java is responsible for a bunch of miscellaneous operations for reading and converting data

Created: Wed Jan 29 10:06:37 2003

Author:

Artur Hefczyc

Field Summary

Fields inherited from interface DataTypesDefinition

BIG_ENDIAN_ORDER, CHAR_NULL_VALUE, DATA_2_COORD_F, DATA_2_COORD_F_LEN, DATA_2_COORD_R, DATA_2_COORD_R_LEN, DATA_3_COORD_F, DATA_3_COORD_F_LEN, DATA_3_COORD_R, DATA_3_COORD_R_LEN, DATA_DATE_TIME, DATA_DATE_TIME_LEN, DATA_LEVEL1_TEXT, DATA_LEVEL2_TEXT, DATA_LEVEL3_TEXT, DATA_LONG_FLOAT, DATA_LONG_FLOAT_LEN, DATA_LONG_INTEGER, DATA_LONG_INTEGER_LEN, DATA_NULL_FIELD, DATA_NULL_FIELD_LEN, DATA_SHORT_FLOAT, DATA_SHORT_FLOAT_LEN, DATA_SHORT_INTEGER, DATA_SHORT_INTEGER_LEN, DATA_TEXT, DATA_TRIPLET_ID, DATA_TRIPLET_ID_LEN, LEAST_SIGNIF_FIRST, LITTLE_ENDIAN_ORDER, MOST_SIGNIF_FIRST, STRING_NULL_VALUE, STRING_NULL_VALUES

Constructor Summary

Constructors

Constructor	Description
DataUtils()

Method Summary

Modifier and Type	Method	Description
static void	copyArrays(byte[] dest, byte[] source, int fromIdx)	Describe copyArrays method here.
static Object	decodeData(byte[] bytes, char type)	Describe decodeData method here.
static double	decodeDouble(byte[] bytes)	Describe decodeDouble method here.
static float	decodeFloat(byte[] bytes)	Describe decodeFloat method here.
static int	decodeInt(byte[] bytes)	Describe decodeInt method here.
static short	decodeShort(byte[] bytes)	Describe decodeShort method here.
static int	getDataTypeSize(char type)	Describe getDataTypeSize method here.
static boolean	isNumeric(char type)	Describe isNumeric method here.
static int	littleEndianToInt(byte[] fourBytes)
static byte[]	toBigEndian(byte[] source)	Converts the provided array to big endian.
static int	unsigByteToInt(byte b)	Describe unsigByteToInt method here.

Methods inherited from class Object

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

Constructor Detail

DataUtils

public DataUtils()

Method Detail

toBigEndian

public static byte[] toBigEndian(byte[] source)

Converts the provided array to big endian.

As java is BigEndian the implementation just makes a copy.

Parameters:

source - a byte[] value

Returns:

a byte[] value

decodeData

public static Object decodeData(byte[] bytes,
                                char type)

Describe decodeData method here.

Parameters:

bytes - a byte[] value

type - a char value

Returns:

an Object value

copyArrays

public static void copyArrays(byte[] dest,
                              byte[] source,
                              int fromIdx)

Describe copyArrays method here.

Parameters:

dest - a byte[] value

source - a byte[] value

fromIdx - an int value

decodeShort

public static short decodeShort(byte[] bytes)

Describe decodeShort method here.

Parameters:

bytes - a byte[] value

Returns:

a short value

littleEndianToInt

public static int littleEndianToInt(byte[] fourBytes)

decodeInt

public static int decodeInt(byte[] bytes)

Describe decodeInt method here.

Parameters:

bytes - a byte[] value

Returns:

an int value

decodeFloat

public static float decodeFloat(byte[] bytes)

Describe decodeFloat method here.

Parameters:

bytes - a byte[] value

Returns:

a float value

decodeDouble

public static double decodeDouble(byte[] bytes)

Describe decodeDouble method here.

Parameters:

bytes - a byte[] value

Returns:

a double value

unsigByteToInt

public static int unsigByteToInt(byte b)

Describe unsigByteToInt method here.

Parameters:

b - a byte value

Returns:

an int value

getDataTypeSize

public static int getDataTypeSize(char type)

Describe getDataTypeSize method here.

Parameters:

type - a char value

Returns:

an int value

isNumeric

public static boolean isNumeric(char type)

Describe isNumeric method here.

Parameters:

type - a char value

Returns:

a boolean value