private int parseHost()

in ldap/model/src/main/java/org/apache/directory/api/ldap/model/url/LdapUrl.java [384:449]
48 lines of code
78 McCabe index (conditional complexity)

    private int parseHost( char[] chars, int pos )
    {
        int start = pos;
        
        if ( pos >= chars.length )
        {
            return INVALID;
        }

        // The host will be followed by a '/' or a ':', or by nothing if it's
        // the end.
        // We will search the end of the host part, and we will check some
        // elements.
        switch ( chars[pos] )
        {
            case '[':
                // This is an IP Literal address
                return parseIpLiteral( chars, pos + 1 );

            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
                // Probably an IPV4 address, but may be a reg-name
                // try to parse an IPV4 address first
                int currentPos = parseIPV4( chars, pos );

                if ( currentPos != INVALID )
                {
                    host = new String( chars, start, currentPos - start );

                    return currentPos;
                }
                //fallback to reg-name

            case 'a' : case 'b' : case 'c' : case 'd' : case 'e' :
            case 'A' : case 'B' : case 'C' : case 'D' : case 'E' :
            case 'f' : case 'g' : case 'h' : case 'i' : case 'j' :
            case 'F' : case 'G' : case 'H' : case 'I' : case 'J' :
            case 'k' : case 'l' : case 'm' : case 'n' : case 'o' :
            case 'K' : case 'L' : case 'M' : case 'N' : case 'O' :
            case 'p' : case 'q' : case 'r' : case 's' : case 't' :
            case 'P' : case 'Q' : case 'R' : case 'S' : case 'T' :
            case 'u' : case 'v' : case 'w' : case 'x' : case 'y' :
            case 'U' : case 'V' : case 'W' : case 'X' : case 'Y' :
            case 'z' : case 'Z' : case '-' : case '.' : case '_' :
            case '~' : case '%' : case '!' : case '$' : case '&' :
            case '\'' : case '(' : case ')' : case '*' : case '+' :
            case ',' : case ';' : case '=' :
                // A reg-name
                return parseRegName( chars, pos );

            default:
                break;
        }

        host = new String( chars, start, pos - start );

        return pos;
    }