net.sf.hermesftp.cmd
Class ActiveModeSocketProvider

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

All Implemented Interfaces:

SocketProvider

public class ActiveModeSocketProvider
extends java.lang.Object
implements SocketProvider

Provider for the client socket (active transfer). The creation of the socket is deferred until it is needed.

Author:

Behnke

Constructor Summary

ActiveModeSocketProvider(FtpSessionContext ctx, DataChannelInfo info)
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

ActiveModeSocketProvider

public ActiveModeSocketProvider(FtpSessionContext ctx,
                                DataChannelInfo info)

Constructor.

Parameters:

ctx - Session context.

info - Channel about the data channel to open.

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.

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.

closeSocket

public void closeSocket()

Closes the socket, if necessary.

Specified by:

closeSocket in interface SocketProvider