Package de.tsenger.vdstools

Class DataParser

java.lang.Object

de.tsenger.vdstools.DataParser

public class DataParser
extends Object

Created by Tobias Senger on 18.01.2017.

Constructor Summary

Constructors

Constructor	Description
DataParser()

Method Summary

Modifier and Type	Method	Description
static byte[]	decodeBase256(String s)
static String	decodeC40(byte[] bytes)
static LocalDate	decodeDate(byte[] dateBytes)
static LocalDateTime	decodeDateTime(byte[] dateTimeBytes)	Decodes a byte[] encoded datetime as described in ICAO TR "Datastructure for Barcode".
static String	decodeMaskedDate(byte[] maskedDateBytes)	Decodes a byte[] encoded masked date as described in ICAO TR "Datastructure for Barcode".
static byte[]	getFromByteBuffer(ByteBuffer buffer, int size)	Returns a byte array of the requested size which contains the number of bytes from the given ByteBuffer beginning at the current pointer of the ByteBuffer.
static List<DerTlv>	parseDerTLvs(byte[] rawBytes)
static byte[]	unzip(byte[] bytesToDecompress)

Methods inherited from class java.lang.Object

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

Constructor Detail

DataParser

public DataParser()

Method Detail

getFromByteBuffer

public static byte[] getFromByteBuffer(ByteBuffer buffer,
                                       int size)

Returns a byte array of the requested size which contains the number of bytes from the given ByteBuffer beginning at the current pointer of the ByteBuffer.

Parameters:

buffer - The ByteBuffer to get the number of bytes from.

size - Number of bytes to get from ByteBuffer. Starting from the internal ByteBuffers pointer

Returns:

byte array of length 'size' with bytes from ByteBuffer

decodeMaskedDate

public static String decodeMaskedDate(byte[] maskedDateBytes)
                               throws IllegalArgumentException

Decodes a byte[] encoded masked date as described in ICAO TR "Datastructure for Barcode". Returns a date string in format yyyy-MM-dd where unknown parts of the date are marked with an 'x'. e.g. 19xx-10-xx

Parameters:

maskedDateBytes - byte array that contains a encoded masked date

Returns:

date string where unknown parts of the date are marked with an 'x'

Throws:

IllegalArgumentException

decodeDate

public static LocalDate decodeDate(byte[] dateBytes)

decodeDateTime

public static LocalDateTime decodeDateTime(byte[] dateTimeBytes)

Decodes a byte[] encoded datetime as described in ICAO TR "Datastructure for Barcode". Returns a LocalDateTime object

Parameters:

dateTimeBytes - byte array with length 6 which contains encoded datetime

Returns:

LocalDateTime object

parseDerTLvs

public static List<DerTlv> parseDerTLvs(byte[] rawBytes)

decodeC40

public static String decodeC40(byte[] bytes)

decodeBase256

public static byte[] decodeBase256(String s)

unzip

public static byte[] unzip(byte[] bytesToDecompress)
                    throws IOException

Throws:

IOException