Package org.apache.sshd.server.shell

Class UnknownCommand

java.lang.Object

org.apache.sshd.server.shell.UnknownCommand

All Implemented Interfaces:

Runnable, Command, CommandDirectErrorStreamAware, CommandDirectInputStreamAware, CommandDirectOutputStreamAware, CommandDirectStreamsAware, CommandLifecycle

public class UnknownCommand
extends Object
implements Command, Runnable

Implementation of an unknown command that can be returned by CommandFactory when the command is not known, as it is supposed to always return a valid Command object.

Author:

Apache MINA SSHD Project

Constructor Summary

Constructors

Constructor	Description
UnknownCommand(String command)

Method Summary

Modifier and Type	Method	Description
void	destroy(ChannelSession channel)	This method is called by the SSH server to destroy the command because the client has disconnected somehow.
boolean	equals(Object obj)
String	getCommand()
String	getMessage()
int	hashCode()
void	run()
void	setErrorStream(OutputStream err)	Set the error stream that can be used by the shell to write its errors.
void	setExitCallback(ExitCallback callback)	Set the callback that the shell has to call when it is closed.
void	setInputStream(InputStream in)	Set the input stream that can be used by the shell to read input.
void	setOutputStream(OutputStream out)	Set the output stream that can be used by the shell to write its output.
void	start(ChannelSession channel, Environment env)	Starts the command execution.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

UnknownCommand

public UnknownCommand(String command)

Method Detail

getCommand

public String getCommand()

getMessage

public String getMessage()

setInputStream

public void setInputStream(InputStream in)

Description copied from interface: CommandDirectInputStreamAware

Set the input stream that can be used by the shell to read input.

Specified by:

setInputStream in interface CommandDirectInputStreamAware

Parameters:

in - The InputStream used by the shell to read input.

setOutputStream

public void setOutputStream(OutputStream out)

Description copied from interface: CommandDirectOutputStreamAware

Set the output stream that can be used by the shell to write its output.

Specified by:

setOutputStream in interface CommandDirectOutputStreamAware

Parameters:

out - The OutputStream used by the shell to write its output

setErrorStream

public void setErrorStream(OutputStream err)

Description copied from interface: CommandDirectErrorStreamAware

Set the error stream that can be used by the shell to write its errors.

Specified by:

setErrorStream in interface CommandDirectErrorStreamAware

Parameters:

err - The OutputStream used by the shell to write its errors

setExitCallback

public void setExitCallback(ExitCallback callback)

Description copied from interface: Command

Set the callback that the shell has to call when it is closed.

Specified by:

setExitCallback in interface Command

Parameters:

callback - The ExitCallback to call when shell is closed

run

public void run()

Specified by:

run in interface Runnable

start

public void start(ChannelSession channel,
                  Environment env)
           throws IOException

Description copied from interface: CommandLifecycle

Starts the command execution. All streams must have been set before calling this method. The command should implement Runnable, and this method should spawn a new thread like:

 Thread(this).start(); 
 

Specified by:

start in interface CommandLifecycle

Parameters:

channel - The ChannelSession through which the command has been received

env - The Environment

Throws:

IOException - If failed to start

destroy

public void destroy(ChannelSession channel)

Description copied from interface: CommandLifecycle

This method is called by the SSH server to destroy the command because the client has disconnected somehow.

Specified by:

destroy in interface CommandLifecycle

Parameters:

channel - The ChannelSession through which the command has been received

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object