com.neovisionaries.bluetooth.ble.util

Class UUIDCreator

java.lang.Object

com.neovisionaries.bluetooth.ble.util.UUIDCreator

public class UUIDCreator
extends Object

Utility to create UUID instances.

Since:

1.1

Method Summary

Modifier and Type	Method and Description
static UUID	from128(byte[] data) Create a UUID instance from 128-bit UUID data (little endian).
static UUID	from128(byte[] data, int offset) Create a UUID instance from 128-bit UUID data (little endian).
static UUID	from128(byte[] data, int offset, boolean littleEndian) Create a UUID instance from 128-bit UUID data.
static UUID	from16(byte[] data) Create a UUID instance from 16-bit UUID data (little endian).
static UUID	from16(byte[] data, int offset) Create a UUID instance from 16-bit UUID data (little endian).
static UUID	from16(byte[] data, int offset, boolean littleEndian) Create a UUID instance from 16-bit UUID data.
static UUID	from32(byte[] data) Create a UUID instance from 32-bit UUID data (little endian).
static UUID	from32(byte[] data, int offset) Create a UUID instance from 32-bit UUID data (little endian).
static UUID	from32(byte[] data, int offset, boolean littleEndian) Create a UUID instance from 32-bit UUID data.

Methods inherited from class java.lang.Object

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

Method Detail

from16

public static UUID from16(byte[] data)

Create a UUID instance from 16-bit UUID data (little endian).

This method is an alias of from16(data, 0).

Parameters:

data - A byte array containing 16-bit UUID data.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from16

public static UUID from16(byte[] data,
                          int offset)

Create a UUID instance from 16-bit UUID data (little endian).

This method is an alias of from16(data, offset, true).

Parameters:

data - A byte array containing 16-bit UUID data.

offset - The offset from which 16-bit UUID data should be read.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from16

public static UUID from16(byte[] data,
                          int offset,
                          boolean littleEndian)

Create a UUID instance from 16-bit UUID data.

 // Prepare a byte array containing 32-bit UUID data (little endian).
 byte[] data = new byte[] { (byte)0xAB, (byte)0xCD };

 // Create a UUID instance from the byte array.
 UUID uuid = UUIDCreator.from16(data, 0, true);

 // uuid represents 0000cdab-0000-1000-8000-00805f9b34fb.
 

 // Prepare a byte array containing 32-bit UUID data (big endian).
 byte[] data = new byte[] { (byte)0xCD, (byte)0xAB };

 // Create a UUID instance from the byte array.
 UUID uuid = UUIDCreator.from16(data, 0, false);

 // uuid represents 0000cdab-0000-1000-8000-00805f9b34fb.
 

Parameters:

data - A byte array containing 16-bit UUID data.

offset - The offset from which 16-bit UUID data should be read.

littleEndian - true if the 16-bit UUID data is stored in little endian. false for big endian.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from32

public static UUID from32(byte[] data)

Create a UUID instance from 32-bit UUID data (little endian).

This method is an alias of from32(data, 0).

Parameters:

data - A byte array containing 32-bit UUID data.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from32

public static UUID from32(byte[] data,
                          int offset)

Create a UUID instance from 32-bit UUID data (little endian).

This method is an alias of from32(data, offset, true).

Parameters:

data - A byte array containing 32-bit UUID data.

offset - The offset from which 32-bit UUID data should be read.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from32

public static UUID from32(byte[] data,
                          int offset,
                          boolean littleEndian)

Create a UUID instance from 32-bit UUID data.

 // Prepare a byte array containing 32-bit UUID data (little endian).
 byte[] data = new byte[] { (byte)0x89, (byte)0xAB, (byte)0xCD, (byte)0xEF };

 // Create a UUID instance from the byte array.
 UUID uuid = UUIDCreator.from32(data, 0, true);

 // uuid represents efcdab89-0000-1000-8000-00805f9b34fb.
 

 // Prepare a byte array containing 32-bit UUID data (big endian).
 byte[] data = new byte[] { (byte)0xEF, (byte)0xCD, (byte)0xAB, (byte)0x89 };

 // Create a UUID instance from the byte array.
 UUID uuid = UUIDCreator.from32(data, 0, false);

 // uuid represents efcdab89-0000-1000-8000-00805f9b34fb.
 

Parameters:

data - A byte array containing 32-bit UUID data.

offset - The offset from which 32-bit UUID data should be read.

littleEndian - true if the 32-bit UUID data is stored in little endian. false for big endian.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from128

public static UUID from128(byte[] data)

Create a UUID instance from 128-bit UUID data (little endian).

This method is an alias of from128(data, 0).

Parameters:

data - A byte array containing 128-bit UUID data.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from128

public static UUID from128(byte[] data,
                           int offset)

Create a UUID instance from 128-bit UUID data (little endian).

This method is an alias of from128(data, 0, true).

Parameters:

data - A byte array containing 128-bit UUID data.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

from128

public static UUID from128(byte[] data,
                           int offset,
                           boolean littleEndian)

Create a UUID instance from 128-bit UUID data.

 // Prepare a byte array containing 128-bit UUID data (little endian).
 byte[] data = new byte[] {
     (byte)0x10, (byte)0x32, (byte)0x54, (byte)0x76,
     (byte)0x98, (byte)0xBA, (byte)0xDC, (byte)0xFE,
     (byte)0xEF, (byte)0xCD, (byte)0xAB, (byte)0x89,
     (byte)0x67, (byte)0x45, (byte)0x23, (byte)0x01 };

 // Create a UUID instance from the byte array.
 UUID uuid = UUIDCreator.from128(data, 0, true);

 // uuid represents 01234567-89ab-cdef-fedc-ba9876543210.
 

 // Prepare a byte array containing 128-bit UUID data (big endian).
 byte[] data = new byte[] {
     (byte)0x01, (byte)0x23, (byte)0x45, (byte)0x67,
     (byte)0x89, (byte)0xAB, (byte)0xCD, (byte)0xEF,
     (byte)0xFE, (byte)0xDC, (byte)0xBA, (byte)0x98,
     (byte)0x76, (byte)0x54, (byte)0x32, (byte)0x10 };

 // Create a UUID instance from the byte array.
 UUID uuid = UUIDCreator.from128(data, 0, false);

 // uuid represents 01234567-89ab-cdef-fedc-ba9876543210.
 

Parameters:

data - A byte array containing 128-bit UUID data.

offset - The offset from which 128-bit UUID data should be read.

Returns:

A UUID instance. null is returned when data is null or offset is not valid.

Since:

1.6