com.kontakt.sdk.android.common.util

Class ConversionUtils

java.lang.Object

com.kontakt.sdk.android.common.util.ConversionUtils

public final class ConversionUtils
extends java.lang.Object

Converter provides utility methods which useful when working with Beacons.

Method Summary

Modifier and Type	Method and Description
static int	asInt(byte value) Converts byte to integer value.
static int	asInt(byte[] input) Converts array into integer value.
static byte[]	convert(java.io.File file) Converts File to bytes of array.
static byte[]	convert(java.util.UUID uuid) Converts UUID (UUID) to bytes array.
static byte[]	convertPowerLevel(int powerLevel) Converts power level to bytes array which can be accepted by Beacon.
static boolean	doesArrayBeginWith(byte[] array, byte[] prefix) checkes whether array starts with the byte sequence specified in prefix array.
static boolean	doesArrayContainSubset(byte[] src, byte[] subset, int startIndex)
static byte[]	extractPayload(byte[] src, int start, int length)
static byte[]	invert(byte[] array) Inverts bytes array.
static byte[]	to2ByteArray(int value) Converts integer value to 2-byte array.
static int	toPowerLevel(byte[] byteValue) Converts bytes array to Beacon power level.
static int	toPowerLevel(int value) Converts integer value to power level.
static double[]	toPrimitive(java.lang.Double[] array) Converts an array of object Doubles to primitives.
static java.util.UUID	toUUID(byte[] uuid) Converts bytes array to UUID

Methods inherited from class java.lang.Object

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

Method Detail

asInt

public static int asInt(byte value)

Converts byte to integer value.

Parameters:

value - the value

Returns:

the int

extractPayload

public static byte[] extractPayload(byte[] src,
                                    int start,
                                    int length)

doesArrayBeginWith

public static boolean doesArrayBeginWith(byte[] array,
                                         byte[] prefix)

checkes whether array starts with the byte sequence specified in prefix array.

Parameters:

array - the array

prefix - the prefix array

Returns:

returns true if array starts with bytes sequence specified in prefix array

invert

public static byte[] invert(byte[] array)

Inverts bytes array.

Parameters:

array - the array

Returns:

the byte [ ]

asInt

public static int asInt(byte[] input)

Converts array into integer value.

Parameters:

input - the input array

Returns:

the int value

to2ByteArray

public static byte[] to2ByteArray(int value)

Converts integer value to 2-byte array.

Parameters:

value - the value

Returns:

the byte [ ]

convert

public static byte[] convert(java.util.UUID uuid)

Converts UUID (UUID) to bytes array.

Parameters:

uuid - the uuid

Returns:

the byte array

convert

public static byte[] convert(java.io.File file)
                      throws java.io.IOException

Converts File to bytes of array.

Parameters:

file - the file

Returns:

the byte [ ]

Throws:

java.io.IOException - the iO exception

toPowerLevel

public static int toPowerLevel(byte[] byteValue)

Converts bytes array to Beacon power level.

Parameters:

byteValue - the byte value

Returns:

the int

See Also:

kontakt.io Beacon Datasheet - version 2.0.

toPowerLevel

public static int toPowerLevel(int value)

Converts integer value to power level. The value should be obtained from Beacon device.

Parameters:

value - the value

Returns:

the int

See Also:

kontakt.io Beacon Datasheet - version 2.0.

convertPowerLevel

public static byte[] convertPowerLevel(int powerLevel)

Converts power level to bytes array which can be accepted by Beacon.

Parameters:

powerLevel - the power level

Returns:

the byte [ ] array

toUUID

public static java.util.UUID toUUID(byte[] uuid)

Converts bytes array to UUID

Parameters:

uuid - the byte array

Returns:

the uUID

doesArrayContainSubset

public static boolean doesArrayContainSubset(byte[] src,
                                             byte[] subset,
                                             int startIndex)

toPrimitive

public static double[] toPrimitive(java.lang.Double[] array)

Converts an array of object Doubles to primitives.

This method returns null for a null input array.

Parameters:

array - a Double array, may be null

Returns:

a double array, null if null array input

Throws:

java.lang.NullPointerException - if array content is null