Data Transformation Engine FTP Adapter Reference Guide

Chapter 4 - Syntax Summary URL Syntax

FTP Adapter Reference Guide

an at sign (

@). Within the user and password field, any :, @, or /

characters must be encoded. See URL Encoding.

The

url_path of an FTP URL has the following syntax:

cwd1/cwd2/.../cwdN/name;type= xfer_type

where

cwd1 through cwdN and name are (possibly encoded) strings and

xfer_type is one of the characters

a, i, or d. The part ;type= xfer_type may be

omitted. The

cwdx and name parts may be empty. The whole url_path may be

omitted, including the

/, delimiting it from the prefix containing user, password,

host, and port.

The

url_path is interpreted as a series of FTP commands as follows:

♦ Each

cwd element is to be sequentially supplied as the argument to a CWD

(change working directory) command.

♦ If the typecode is “

d”, perform a NLST (name list) command with name as the

argument and interpret the results as a file directory listing.

♦ Otherwise, perform a

TYPE command with xfer_type as the argument and

then access the file named

name (for example, using the RETR command).

Note The xfer_type argument has been extended beyond what is supported by the

RFC, specifically the D1, D2, D3, and D4 sections. Also, host:port may be

excluded, although it is rarely useful to do so; host defaults to localhost.