javatools.ftp
Class FTPClientImpl

java.lang.Object
  |
  +--javatools.ftp.FTPClientImpl

All Implemented Interfaces:

FTPClient

public class FTPClientImpl

extends java.lang.Object

implements FTPClient

An FTP client class which implements remote peer-to-peer transfer.

Field Summary

(package private) java.lang.String	code
(package private) java.net.Socket	controlSocket
(package private) java.lang.String	host
(package private) java.io.BufferedReader	is
(package private) int	localDataPort
(package private) java.net.InetAddress	localInetAddress
(package private) boolean	Mode
(package private) java.io.BufferedWriter	ps
(package private) java.lang.String	response
(package private) java.lang.String	user

Fields inherited from interface javatools.ftp.FTPClient

DIRECTORY, FILE, GETFILE, GETLIST, LINK, UNKNOWN

Constructor Summary

FTPClientImpl()

Method Summary

long	bytesTransf() Gets the number of bytes read
void	cwd(java.lang.String dir) Change to the specified directory, which may be relative or absolute.
void	delete(java.lang.String sDirectory, java.lang.String sFile) Delete the File
(package private) java.lang.String	extractPortAddress(java.lang.String s) Parses a port address from the string returned by the "pasv" FTP command.
java.util.Vector	list() Request a listing of the current directory.
(package private) java.lang.String	makePortAddress(java.net.InetAddress inad, int port) Manufacture the kind of host/port address required by FTP.
void	openConnection(java.lang.String host, java.lang.String user, java.lang.String password) Open a connection to a remote host that runs an FTP server.
void	quit() Close ftp connection
void	readResponse() Read a response from the host.
void	receive(java.lang.String directory, java.lang.String filename, FTPVisitor ftpVisitor) Request to receive the specified file.
java.lang.String	retResponse() Returns FTP server response
void	send(java.lang.String sDirectory, java.lang.String filename, FTPSender ftpSender) Request that the host send a file to another host.
void	sendCommand(java.lang.String command) Send a command to the host, and read the response.
void	setAscii() Set the transfer mode to Ascii.
void	setBinary() Set the transfer mode to Image (also referred to as "binary").
(package private) java.lang.String	toUnsignedDecimal(byte b) Utility function to convert a byte to an unsigned decimal string representation

Methods inherited from class java.lang.Object

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

Field Detail

host

java.lang.String host

user

java.lang.String user

localInetAddress

java.net.InetAddress localInetAddress

localDataPort

int localDataPort

Mode

boolean Mode

response

java.lang.String response

is

java.io.BufferedReader is

ps

java.io.BufferedWriter ps

code

java.lang.String code

controlSocket

java.net.Socket controlSocket

Constructor Detail

FTPClientImpl

public FTPClientImpl()

Method Detail

openConnection

public void openConnection(java.lang.String host,
                           java.lang.String user,
                           java.lang.String password)
                    throws java.io.IOException,
                           java.lang.Exception

Open a connection to a remote host that runs an FTP server.

Specified by:

openConnection in interface FTPClient

java.io.IOException

java.lang.Exception

quit

public void quit()
          throws java.io.IOException,
                 java.lang.Exception

Description copied from interface: FTPClient

Close ftp connection

Specified by:

quit in interface FTPClient

java.io.IOException

java.lang.Exception

sendCommand

public void sendCommand(java.lang.String command)
                 throws java.io.IOException,
                        java.lang.Exception

Send a command to the host, and read the response.

Specified by:

sendCommand in interface FTPClient

java.io.IOException

java.lang.Exception

readResponse

public void readResponse()
                  throws java.io.IOException

Read a response from the host.

Specified by:

readResponse in interface FTPClient

java.io.IOException

makePortAddress

java.lang.String makePortAddress(java.net.InetAddress inad,
                                 int port)

Manufacture the kind of host/port address required by FTP. The syntax is: PORT h1,h2,h3,h4,p1,p2 where h1 is the high order 8 bits of the internet host address.

toUnsignedDecimal

java.lang.String toUnsignedDecimal(byte b)

Utility function to convert a byte to an unsigned decimal string representation

setAscii

public void setAscii()
              throws java.io.IOException,
                     java.lang.Exception

Set the transfer mode to Ascii.

Specified by:

setAscii in interface FTPClient

java.io.IOException

java.lang.Exception

setBinary

public void setBinary()
               throws java.io.IOException,
                      java.lang.Exception

Set the transfer mode to Image (also referred to as "binary").

Specified by:

setBinary in interface FTPClient

java.io.IOException

java.lang.Exception

cwd

public void cwd(java.lang.String dir)
         throws java.io.IOException,
                java.lang.Exception

Change to the specified directory, which may be relative or absolute.

Specified by:

cwd in interface FTPClient

java.io.IOException

java.lang.Exception

delete

public void delete(java.lang.String sDirectory,
                   java.lang.String sFile)
            throws java.io.IOException,
                   java.lang.Exception

Delete the File

Specified by:

delete in interface FTPClient

java.io.IOException

java.lang.Exception

send

public void send(java.lang.String sDirectory,
                 java.lang.String filename,
                 FTPSender ftpSender)
          throws java.io.IOException,
                 java.lang.Exception

Request that the host send a file to another host. The destination host is specified by the port string, which conforms to the syntax used by makePortAddress().

Specified by:

send in interface FTPClient

java.io.IOException

java.lang.Exception

list

public java.util.Vector list()
                      throws java.io.IOException,
                             java.lang.Exception

Request a listing of the current directory. The result is sent on a new data connection.

Specified by:

list in interface FTPClient

java.io.IOException

java.lang.Exception

receive

public void receive(java.lang.String directory,
                    java.lang.String filename,
                    FTPVisitor ftpVisitor)
             throws java.io.IOException,
                    java.lang.Exception

Request to receive the specified file.

Specified by:

receive in interface FTPClient

java.io.IOException

java.lang.Exception

extractPortAddress

java.lang.String extractPortAddress(java.lang.String s)
                              throws java.lang.Exception

Parses a port address from the string returned by the "pasv" FTP command. Assumes that the port address is enclosed in parentheses. Extract it and return it as is.

java.lang.Exception

bytesTransf

public long bytesTransf()

Gets the number of bytes read

Specified by:

bytesTransf in interface FTPClient

retResponse

public java.lang.String retResponse()

Returns FTP server response

Specified by:

retResponse in interface FTPClient