ip1.ex14
Class JFtpControl

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--ip1.ex14.JFtpThread
              |
              +--ip1.ex14.JFtpControl

All Implemented Interfaces:

java.lang.Runnable

public class JFtpControl

extends JFtpThread

The JFtpControl class implements an FTP control thread. Depending on the chosen threading model, at any moment there can be zero, one or any number of control threads running simultaneously. All control threads are owned by the JFtp instance. A control thread may own JFtpData threads.

Version:

$Id: JFtpControl.java,v 1.42 2003/10/17 14:03:39 sharky Exp $

See Also:

JFtp, JFtpData, JFtpResponse

Nested Class Summary

(package private) class	JFtpControl.ControlQueueItem Class for describing a JFtpControl's queue.
(package private) class	JFtpControl.IdleTask A TimerTask to watch inactivity on a JFtpControlThread.

Nested classes inherited from class ip1.ex14.JFtpThread

Field Summary

private java.io.BufferedReader	in
protected java.io.File	localDir The local working directory.
private java.io.PrintWriter	out
protected boolean	passive Are we in passive mode?
protected java.net.URL	remoteUrl The remote working URL.
protected java.net.Socket	sockControl Control connection.
static int	STATE_CONNECT We are connected .
static int	STATE_LOGGED We have logged in.

Fields inherited from class ip1.ex14.JFtpThread

children, counter, id, node, parent, queue, state, STATE_EXITED, STATE_NOTRUNNING, STATE_SHUTDOWN, threadTree, threadTreeChanged, type

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

JFtpControl(JFtp jftp, java.net.URL url)
The constructor.

Method Summary

(package private) void	die_command(java.lang.String cmd) The command issued is not allowed in current state.
private void	makeCwd(JFtpEntry entry) Change the remote working directory.
private void	makeDele(JFtpEntry entry) Delete a remote file.
private JFtpResponse	makeList() Returns the directory listing.
private JFtpResponse	makeNoop() Send a NOOP command.
private JFtpResponse	makePass() Sent the user's password.
private JFtpResponse	makePwd() Prints current working directory.
private void	makeQuit() Says goodbye to the FTP server.
private void	makeRetr(JFtpEntry entry) Retrieve a remote file.
private void	makeStor(JFtpEntry entry) Send a file to the server.
private boolean	makeType(java.lang.String type) Set the transfer type.
private JFtpResponse	makeUser() Authenticate.
void	queueCwd(JFtpEntry entry) Queue a CWD command.
void	queueDele(JFtpEntry entry) Queue a DELE command.
void	queueList() Queue a LIST command.
void	queueNoop() Queue a NOOP command.
void	queuePwd() Queue a PWD command.
void	queueRetr(JFtpEntry entry) Queue a RETR command.
void	queueStor(JFtpEntry entry) Queue a STOR command.
protected JFtpResponse	recvResponse() Receive and process a reponse from the server.
void	run() The thread's entry point.
protected void	sendCommand(java.lang.String strng) Sends a string to the remote host.
protected void	shutdown() Close reader, writer and socket.

Methods inherited from class ip1.ex14.JFtpThread

addChild, addQueue, debug, dumpQueue, getChild, getRoot, isBusy, peekQueue, propagateTreeChange, queueShutdown, readQueue, refreshNode, refreshThreadView, removeChild, reset, toString, waitShutdown

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, yield

Methods inherited from class java.lang.Object

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

Field Detail

sockControl

protected java.net.Socket sockControl

Control connection.

STATE_CONNECT

public static final int STATE_CONNECT

We are connected .

See Also:

Constant Field Values

STATE_LOGGED

public static final int STATE_LOGGED

We have logged in.

See Also:

Constant Field Values

localDir

protected java.io.File localDir

The local working directory.

remoteUrl

protected java.net.URL remoteUrl

The remote working URL.

passive

protected boolean passive

Are we in passive mode?

in

private java.io.BufferedReader in

out

private java.io.PrintWriter out

Constructor Detail

JFtpControl

public JFtpControl(JFtp jftp,
                   java.net.URL url)

The constructor.

Parameters:

jftp - the JFtp paren thread

url - the starting URL

Method Detail

die_command

void die_command(java.lang.String cmd)

The command issued is not allowed in current state.

Parameters:

cmd - the rejected command

run

public void run()

The thread's entry point.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class JFtpThread

recvResponse

protected JFtpResponse recvResponse()

Receive and process a reponse from the server.

See Also:

sendCommand(java.lang.String), JFtpResponse

sendCommand

protected void sendCommand(java.lang.String strng)

Sends a string to the remote host.

Parameters:

strng - the string to send

See Also:

recvResponse()

shutdown

protected void shutdown()

Close reader, writer and socket.

Overrides:

shutdown in class JFtpThread

makeCwd

private void makeCwd(JFtpEntry entry)

Change the remote working directory.

See Also:

queueCwd(ip1.ex14.JFtpEntry)

makeDele

private void makeDele(JFtpEntry entry)

Delete a remote file.

See Also:

queueDele(ip1.ex14.JFtpEntry)

makeList

private JFtpResponse makeList()

Returns the directory listing.

See Also:

queueList(), JFtpData.queueReadStr(java.lang.StringBuffer), JFtp.dispRemote(java.util.Vector)

makeNoop

private JFtpResponse makeNoop()

Send a NOOP command.

See Also:

queueNoop(), JFtpControl.IdleTask

makePass

private JFtpResponse makePass()

Sent the user's password.

makePwd

private JFtpResponse makePwd()

Prints current working directory.

See Also:

queuePwd()

makeRetr

private void makeRetr(JFtpEntry entry)

Retrieve a remote file.

Parameters:

entry - the file we are retrieving

See Also:

makeType(java.lang.String), queueRetr(ip1.ex14.JFtpEntry), recvResponse(), sendCommand(java.lang.String), JFtpData.queueReceive(java.io.File)

makeStor

private void makeStor(JFtpEntry entry)

Send a file to the server.

See Also:

makeType(java.lang.String), queueStor(ip1.ex14.JFtpEntry), recvResponse(), sendCommand(java.lang.String), JFtpData.queueSend(java.io.File)

makeType

private boolean makeType(java.lang.String type)

Set the transfer type.

Parameters:

type - the transfer type

See Also:

makeRetr(ip1.ex14.JFtpEntry), makeStor(ip1.ex14.JFtpEntry), sendCommand(java.lang.String), recvResponse()

makeQuit

private void makeQuit()

Says goodbye to the FTP server.

See Also:

sendCommand(java.lang.String), recvResponse()

makeUser

private JFtpResponse makeUser()

Authenticate.

See Also:

makePass()

queueCwd

public void queueCwd(JFtpEntry entry)

Queue a CWD command.

See Also:

makeCwd(ip1.ex14.JFtpEntry)

queueDele

public void queueDele(JFtpEntry entry)

Queue a DELE command.

See Also:

makeDele(ip1.ex14.JFtpEntry), JFtpWindow.actionPerformed(java.awt.event.ActionEvent)

queueList

public void queueList()

Queue a LIST command.

See Also:

makeList()

queueNoop

public void queueNoop()

Queue a NOOP command.

See Also:

makeNoop()

queuePwd

public void queuePwd()

Queue a PWD command.

See Also:

makePwd()

queueRetr

public void queueRetr(JFtpEntry entry)

Queue a RETR command.

See Also:

makeRetr(ip1.ex14.JFtpEntry)

queueStor

public void queueStor(JFtpEntry entry)

Queue a STOR command.

See Also:

makeStor(ip1.ex14.JFtpEntry)