Package com.oceanprotocol.squid.helpers

Class EncodingHelper

java.lang.Object

com.oceanprotocol.squid.helpers.EncodingHelper

public abstract class EncodingHelper
extends Object

Constructor Summary

Constructors

Constructor	Description
EncodingHelper()

Method Summary

Modifier and Type	Method	Description
static byte[]	byteArrayToByteArray32(byte[] byteValue)	Given a byte array returns the first 32 bytes in a new byte array
static String	encodeToHex(String input)	Encodes a String in Hex
static String	hexEncodeAbiType(String type, Object value)	Given a type and an object, convert to the proper web3j abi type
static byte[]	hexStringToBytes(String input)	Encodes a Hex String in a byte array
static boolean	isHexString(String input)	Return true or false if a input string is in hex format
static String	padRightWithZero(String input, int len)	Pad a string with zero given a specific length
static String	signatureToString(org.web3j.crypto.Sign.SignatureData signatureData)
static byte[]	stringToBytes(String input)	Convert a string to hex and after to a byte array
static org.web3j.abi.datatypes.generated.Bytes32	stringToBytes32(String input)	Given a String return a Bytes32
static org.web3j.crypto.Sign.SignatureData	stringToSignature(String signatureString)
static String	toHexString(byte[] input)	Convert a byte[] to a hex string with 0x appended

Methods inherited from class java.lang.Object

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

Constructor Detail

EncodingHelper

public EncodingHelper()

Method Detail

stringToBytes32

public static org.web3j.abi.datatypes.generated.Bytes32 stringToBytes32(String input)

Given a String return a Bytes32

Parameters:

input - input string

Returns:

Bytes32 output

byteArrayToByteArray32

public static byte[] byteArrayToByteArray32(byte[] byteValue)

Given a byte array returns the first 32 bytes in a new byte array

Parameters:

byteValue - byte[]

Returns:

byte[]

encodeToHex

public static String encodeToHex(String input)
                          throws UnsupportedEncodingException

Encodes a String in Hex

Parameters:

input - string to encode

Returns:

Hex string

Throws:

UnsupportedEncodingException - Error encoding to Hex

hexStringToBytes

public static byte[] hexStringToBytes(String input)
                               throws UnsupportedEncodingException

Encodes a Hex String in a byte array

Parameters:

input - hex string to encode

Returns:

byte[]

Throws:

UnsupportedEncodingException - Error encoding to byte array

stringToBytes

public static byte[] stringToBytes(String input)
                            throws UnsupportedEncodingException

Convert a string to hex and after to a byte array

Parameters:

input - string to encode

Returns:

byte[]

Throws:

UnsupportedEncodingException - Error encoding to byte array

padRightWithZero

public static String padRightWithZero(String input,
                                      int len)

Pad a string with zero given a specific length

Parameters:

input - string

len - length of the output string

Returns:

string

toHexString

public static String toHexString(byte[] input)

Convert a byte[] to a hex string with 0x appended

Parameters:

input - byte[]

Returns:

hex string

isHexString

public static boolean isHexString(String input)

Return true or false if a input string is in hex format

Parameters:

input - the input string

Returns:

bool

hexEncodeAbiType

public static String hexEncodeAbiType(String type,
                                      Object value)
                               throws UnsupportedEncodingException

Given a type and an object, convert to the proper web3j abi type

Parameters:

type - thw type

value - the object

Returns:

String in hex format

Throws:

UnsupportedEncodingException - UnsupportedEncodingException

signatureToString

public static String signatureToString(org.web3j.crypto.Sign.SignatureData signatureData)

stringToSignature

public static org.web3j.crypto.Sign.SignatureData stringToSignature(String signatureString)
                                                             throws EncodingException

Throws:

EncodingException