decodeHexByte() — netty Function Reference

Architecture documentation for the decodeHexByte() function in StringUtil.java from the netty codebase.

Function java CommonUtil Internal calls 2 called by 1

Entity Profile

CommonUtil→ Internal→ decodeHexByte() — netty Function Reference

Dependency Diagram

graph TD
  5c036a71_d01b_29b6_a0d1_7c91b6bb766e["decodeHexByte()"]
  2bdecda8_5186_4936_ca05_ebee455a476a["StringUtil"]
  5c036a71_d01b_29b6_a0d1_7c91b6bb766e -->|defined in| 2bdecda8_5186_4936_ca05_ebee455a476a
  b7517576_151e_6981_eb99_5b60ed249fb5["decodeHexDump()"]
  b7517576_151e_6981_eb99_5b60ed249fb5 -->|calls| 5c036a71_d01b_29b6_a0d1_7c91b6bb766e
  de38cb8c_b04f_de23_e1f2_9bf861958795["decodeHexNibble()"]
  5c036a71_d01b_29b6_a0d1_7c91b6bb766e -->|calls| de38cb8c_b04f_de23_e1f2_9bf861958795
  5a8bb340_5986_4b56_4e99_332b7ebf6401["IllegalArgumentException()"]
  5c036a71_d01b_29b6_a0d1_7c91b6bb766e -->|calls| 5a8bb340_5986_4b56_4e99_332b7ebf6401
  style 5c036a71_d01b_29b6_a0d1_7c91b6bb766e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

common/src/main/java/io/netty/util/internal/StringUtil.java lines 277–285

    public static byte decodeHexByte(CharSequence s, int pos) {
        int hi = decodeHexNibble(s.charAt(pos));
        int lo = decodeHexNibble(s.charAt(pos + 1));
        if (hi == -1 || lo == -1) {
            throw new IllegalArgumentException(String.format(
                    "invalid hex byte '%s' at index %d of '%s'", s.subSequence(pos, pos + 2), pos, s));
        }
        return (byte) ((hi << 4) + lo);
    }