net.sf.hermesftp.cmd
Class PassiveModeSocketProvider

java.lang.Object
  net.sf.hermesftp.cmd.PassiveModeSocketProvider

All Implemented Interfaces:

SocketProvider

public class PassiveModeSocketProvider
extends java.lang.Object
implements SocketProvider

Provides the data transfer socket for transfer passive mode.

Author:

Behnke

Constructor Summary

PassiveModeSocketProvider(FtpSessionContext ctx, int preferredProtocol)
Constructor.

Method Summary

void	closeSocket() Closes the socket, if necessary.
DataChannelInfo	init() Initializes the provider.
java.net.Socket	provideSocket() Provides the socket for data transfer.

Methods inherited from class java.lang.Object

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

Constructor Detail

PassiveModeSocketProvider

public PassiveModeSocketProvider(FtpSessionContext ctx,
                                 int preferredProtocol)

Constructor.

Parameters:

ctx - Session context.

preferredProtocol - Preferred protocol (IPv4 or IPv6)

Method Detail

init

public DataChannelInfo init()
                     throws java.io.IOException

Initializes the provider.

Specified by:

init in interface SocketProvider

Returns:

Information about the data channel is provided.

Throws:

java.io.IOException - Error on initializing the data channel.

closeSocket

public void closeSocket()

Closes the socket, if necessary.

Specified by:

closeSocket in interface SocketProvider

provideSocket

public java.net.Socket provideSocket()
                              throws java.io.IOException

Provides the socket for data transfer. Multiple calls of this method do not result in multiple socket instance. One instance is created and cached.

Specified by:

provideSocket in interface SocketProvider

Returns:

The Socket.

Throws:

java.io.IOException - Error on creating the data channel.