Package org.fisco.bcos.sdk.utils

Class Hex

java.lang.Object
org.fisco.bcos.sdk.utils.Hex
public class Hex
extends java.lang.Object
Utility class for converting hex data to bytes and back again.

  • Constructor Summary

    Constructors 
    Constructor Description
    Hex()  

  • Method Summary

    Modifier and Type Method Description
    static byte[] decode​(byte[] data)
    decode the Hex encoded input data.
    static byte[] decode​(java.lang.String data)
    decode the Hex encoded String data - whitespace will be ignored.
    static int decode​(java.lang.String data, java.io.OutputStream out)
    decode the Hex encoded String data writing it to the given output stream, whitespace characters will be ignored.
    static byte[] encode​(byte[] data)
    encode the input data producing a Hex encoded byte array.
    static byte[] encode​(byte[] data, int off, int length)
    encode the input data producing a Hex encoded byte array.
    static int encode​(byte[] data, int off, int length, java.io.OutputStream out)
    Hex encode the byte data writing it to the given output stream.
    static int encode​(byte[] data, java.io.OutputStream out)
    Hex encode the byte data writing it to the given output stream.
    static java.lang.String toHexString​(byte[] data)  
    static java.lang.String toHexString​(byte[] data, int off, int length)  

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Hex

      public Hex()

  • Method Details

    • toHexString

      public static java.lang.String toHexString​(byte[] data)

    • toHexString

      public static java.lang.String toHexString​(byte[] data, int off, int length)

    • encode

      public static byte[] encode​(byte[] data)
      encode the input data producing a Hex encoded byte array.
      Parameters:
      data - the input data
      Returns:
      a byte array containing the Hex encoded data.

    • encode

      public static byte[] encode​(byte[] data, int off, int length)
      encode the input data producing a Hex encoded byte array.
      Parameters:
      data - the input byte array
      off - the offset of the data to be converted
      length - the length of the data to be converted
      Returns:
      a byte array containing the Hex encoded data.

    • encode

      public static int encode​(byte[] data, java.io.OutputStream out) throws java.io.IOException
      Hex encode the byte data writing it to the given output stream.
      Parameters:
      data - the byte array
      out - the output stream
      Returns:
      the number of bytes produced.
      Throws:
      java.io.IOException - the I/O exception

    • encode

      public static int encode​(byte[] data, int off, int length, java.io.OutputStream out) throws java.io.IOException
      Hex encode the byte data writing it to the given output stream.
      Parameters:
      data - the byte array
      off - the offset of the data to be converted
      length - the length of the data to be converted
      out - the output stream
      Returns:
      the number of bytes produced.
      Throws:
      java.io.IOException - the I/O exception

    • decode

      public static byte[] decode​(byte[] data)
      decode the Hex encoded input data. It is assumed the input data is valid.
      Parameters:
      data - the input byte array
      Returns:
      a byte array representing the decoded data.

    • decode

      public static byte[] decode​(java.lang.String data)
      decode the Hex encoded String data - whitespace will be ignored.
      Parameters:
      data - the input byte array
      Returns:
      a byte array representing the decoded data.

    • decode

      public static int decode​(java.lang.String data, java.io.OutputStream out) throws java.io.IOException
      decode the Hex encoded String data writing it to the given output stream, whitespace characters will be ignored.
      Parameters:
      data - the input byte array
      out - the output stream
      Returns:
      the number of bytes produced.
      Throws:
      java.io.IOException - the I/O exception