public static String urlEncode()

in ldap/model/src/main/java/org/apache/directory/api/ldap/model/url/LdapUrl.java [1665:1810]

• 118 lines of code
• 88 McCabe index (conditional complexity)

    public static String urlEncode( String url, boolean doubleEncode )
    {
        StringBuilder sb = new StringBuilder();

        for ( int i = 0; i < url.length(); i++ )
        {
            char c = url.charAt( i );

            switch ( c )

            {
            // reserved and unreserved characters:
            // just append to the buffer

            // reserved gen-delims, excluding '?'
            // gen-delims  = ":" / "/" / "?" / "#" / "[" / "]" / "@"
                case ':':
                case '/':
                case '#':
                case '[':
                case ']':
                case '@':

                    // reserved sub-delims, excluding ','
                    // sub-delims  = "!" / "$" / "&" / "'" / "(" / ")"
                    //               / "*" / "+" / "," / ";" / "="
                case '!':
                case '$':
                case '&':
                case '\'':
                case '(':
                case ')':
                case '*':
                case '+':
                case ';':
                case '=':

                    // unreserved
                    // unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"
                case 'a':
                case 'b':
                case 'c':
                case 'd':
                case 'e':
                case 'f':
                case 'g':
                case 'h':
                case 'i':
                case 'j':
                case 'k':
                case 'l':
                case 'm':
                case 'n':
                case 'o':
                case 'p':
                case 'q':
                case 'r':
                case 's':
                case 't':
                case 'u':
                case 'v':
                case 'w':
                case 'x':
                case 'y':
                case 'z':

                case 'A':
                case 'B':
                case 'C':
                case 'D':
                case 'E':
                case 'F':
                case 'G':
                case 'H':
                case 'I':
                case 'J':
                case 'K':
                case 'L':
                case 'M':
                case 'N':
                case 'O':
                case 'P':
                case 'Q':
                case 'R':
                case 'S':
                case 'T':
                case 'U':
                case 'V':
                case 'W':
                case 'X':
                case 'Y':
                case 'Z':

                case '0':
                case '1':
                case '2':
                case '3':
                case '4':
                case '5':
                case '6':
                case '7':
                case '8':
                case '9':

                case '-':
                case '.':
                case '_':
                case '~':

                    sb.append( c );
                    break;

                case ',':

                    // special case for comma
                    if ( doubleEncode )
                    {
                        sb.append( "%2c" );
                    }
                    else
                    {
                        sb.append( c );
                    }
                    break;

                default:

                    // percent encoding
                    byte[] bytes = Unicode.charToBytes( c );
                    char[] hex = Strings.toHexString( bytes ).toCharArray();
                    for ( int j = 0; j < hex.length; j++ )
                    {
                        if ( j % 2 == 0 )
                        {
                            sb.append( '%' );
                        }
                        sb.append( hex[j] );

                    }

                    break;
            }
        }

        return sb.toString();
    }