com.syncbuilder.util
Class PackUtils

java.lang.Object
  |
  +--com.syncbuilder.util.PackUtils

public final class PackUtils

extends java.lang.Object

A collection of static helper-methods for packing/unpacking of the native Records, AppInfos, SortInfos, etc.

Method Summary

static int	getLong(byte[] data, int offset)
static int	getShort(byte[] data, int offset)
static java.lang.String	getZeroTermString(byte[] data, int offset, Index newoff) Extract a String from the data-array.
static void	setLong(byte[] data, int offset, int s)
static void	setShort(byte[] data, int offset, int s)
static int	setZeroTermString(byte[] data, int offset, java.lang.String text) Place a String into an array of bytes.

Methods inherited from class java.lang.Object

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

Method Detail

getZeroTermString

public static java.lang.String getZeroTermString(byte[] data,
                                                 int offset,
                                                 Index newoff)
                                          throws java.lang.ArrayIndexOutOfBoundsException

Extract a String from the data-array. The beginning of the String within the array is specified by the offset. The end of the string is automatically determined by looking for a 0x00-byte.

Parameters:

data - the array of bytes from which the String is extracted

offset - the beginning of the string within the array

newoff - an Index, which will be set to the offset right behind the terminating 0x00-byte, or null if you are not interested in this information

Returns:

a Java.lang.String, with NO terminating 0x00-byte

setZeroTermString

public static int setZeroTermString(byte[] data,
                                    int offset,
                                    java.lang.String text)
                             throws java.lang.ArrayIndexOutOfBoundsException

Place a String into an array of bytes. The string-data in the array will be zero-terminated. The array therefore needs to be 1 byte longer than the string.

Parameters:

data - the array where the result will be placed

offset - the place in the array where the result will be placed

the - String. null is equivalent to an empty string

Returns:

the offset in the array right behind the terminating 0x00-byte

setShort

public static void setShort(byte[] data,
                            int offset,
                            int s)
                     throws java.lang.ArrayIndexOutOfBoundsException

getShort

public static int getShort(byte[] data,
                           int offset)
                    throws java.lang.ArrayIndexOutOfBoundsException

getLong

public static int getLong(byte[] data,
                          int offset)
                   throws java.lang.ArrayIndexOutOfBoundsException

setLong

public static void setLong(byte[] data,
                           int offset,
                           int s)
                    throws java.lang.ArrayIndexOutOfBoundsException