rheise.jftpd
Class Representation

java.lang.Object
  |
  +--rheise.jftpd.Representation

Direct Known Subclasses:

AsciiRepresentation, ImageRepresentation

public abstract class Representation

extends java.lang.Object

A File is transferred to and from the FTP server using a particular representation. The server can be told which representation type to use with the TYPE command. Each subclass of Representation handles the conversion of data between that type and the server's storage representation.

Field Summary

static Representation	ASCII The ASCII representation.
private char	code The character code for this representation.
static Representation	IMAGE The IMAGE representation.
private java.lang.String	name The name of the representation.
private static java.util.Hashtable	representations A code to representation map.

Constructor Summary

protected

Representation(java.lang.String name, char code)

Method Summary

static Representation	get(char code)
char	getCode()
abstract java.io.InputStream	getInputStream(java.net.Socket socket)
java.lang.String	getName()
abstract java.io.OutputStream	getOutputStream(java.net.Socket socket)
abstract long	sizeOf(java.io.File file)

Methods inherited from class java.lang.Object

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

Field Detail

representations

private static java.util.Hashtable representations

A code to representation map.

ASCII

public static final Representation ASCII

The ASCII representation.

IMAGE

public static final Representation IMAGE

The IMAGE representation.

name

private java.lang.String name

The name of the representation.

code

private char code

The character code for this representation.

Constructor Detail

Representation

protected Representation(java.lang.String name,
                         char code)

Method Detail

get

public static Representation get(char code)

Returns:

the Representation indicated by the code argument.

getName

public final java.lang.String getName()

Returns:

the name of this representation type.

getCode

public final char getCode()

Returns:

the character code for this representation type.

getInputStream

public abstract java.io.InputStream getInputStream(java.net.Socket socket)
                                            throws java.io.IOException

Returns:

an input stream to read data from the socket. Data will be translated from this representation to the server's representation.

getOutputStream

public abstract java.io.OutputStream getOutputStream(java.net.Socket socket)
                                              throws java.io.IOException

Returns:

an output stream to write data to the socket. Data will be translated from the server's representation to this representation.

sizeOf

public abstract long sizeOf(java.io.File file)
                     throws java.io.IOException

Returns:

the size that the specified file would have in this representation.