com.android.ddmlib.utils

Class ArrayHelper

java.lang.Object

com.android.ddmlib.utils.ArrayHelper

public final class ArrayHelper
extends java.lang.Object

Utility class providing array to int/long conversion for data received from devices through adb.

Constructor Summary

Constructors

Constructor and Description
ArrayHelper()

Method Summary

Modifier and Type	Method and Description
static int	swap32bitFromArray(byte[] value, int offset) Reads a signed 32 bit integer from an array coming from a device.
static void	swap32bitsToArray(int value, byte[] dest, int offset) Swaps an unsigned value around, and puts the result in an array that can be sent to a device.
static long	swap64bitFromArray(byte[] value, int offset) Reads a signed 64 bit integer from an array coming from a device.
static int	swapU16bitFromArray(byte[] value, int offset) Reads an unsigned 16 bit integer from an array coming from a device, and returns it as an 'int'

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayHelper

public ArrayHelper()

Method Detail

swap32bitsToArray

public static void swap32bitsToArray(int value,
                                     byte[] dest,
                                     int offset)

Swaps an unsigned value around, and puts the result in an array that can be sent to a device.

Parameters:

value - The value to swap.

dest - the destination array

offset - the offset in the array where to put the swapped value. Array length must be at least offset + 4

swap32bitFromArray

public static int swap32bitFromArray(byte[] value,
                                     int offset)

Reads a signed 32 bit integer from an array coming from a device.

Parameters:

value - the array containing the int

offset - the offset in the array at which the int starts

Returns:

the integer read from the array

swapU16bitFromArray

public static int swapU16bitFromArray(byte[] value,
                                      int offset)

Reads an unsigned 16 bit integer from an array coming from a device, and returns it as an 'int'

Parameters:

value - the array containing the 16 bit int (2 byte).

offset - the offset in the array at which the int starts Array length must be at least offset + 2

Returns:

the integer read from the array.

swap64bitFromArray

public static long swap64bitFromArray(byte[] value,
                                      int offset)

Reads a signed 64 bit integer from an array coming from a device.

Parameters:

value - the array containing the int

offset - the offset in the array at which the int starts Array length must be at least offset + 8

Returns:

the integer read from the array