Class GssApiAuthentication<P,T>

java.lang.Object

org.apache.sshd.client.session.proxy.AbstractAuthenticationHandler<P,T>

org.apache.sshd.client.session.proxy.GssApiAuthentication<P,T>

Type Parameters:

P - defining the parameter type for the authentication

T - defining the token type for the authentication

All Implemented Interfaces:

Closeable, AutoCloseable, AuthenticationHandler<P,T>

public abstract class GssApiAuthentication<P,T>
extends AbstractAuthenticationHandler<P,T>

An abstract implementation of a GSS-API multi-round authentication.

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	token	The last token generated.

Fields inherited from class AbstractAuthenticationHandler

done, params, proxy

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GssApiAuthentication(InetSocketAddress proxy)	Creates a new GssApiAuthentication to authenticate with the given proxy.

Method Summary

Modifier and Type	Method	Description
void	close()
protected abstract GSSContext	createContext()	Creates the GSSContext to use.
protected abstract byte[]	extractToken(P input)	Extracts the token from the last set parameters.
final void	process()	Produces the next authentication token, if any.
final void	start()	Produces the initial authentication token that can be then retrieved via AuthenticationHandler.getToken().

Methods inherited from class AbstractAuthenticationHandler

isDone, setParams

Methods inherited from class Object

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

Methods inherited from interface AuthenticationHandler

getToken

Field Details

token

protected byte[] token

The last token generated.

Constructor Details

GssApiAuthentication

protected GssApiAuthentication(InetSocketAddress proxy)

Creates a new GssApiAuthentication to authenticate with the given proxy.

Parameters:

proxy - the InetSocketAddress of the proxy to connect to

Method Details

close

public void close()

start

public final void start()
                 throws IOException

Description copied from interface: AuthenticationHandler

Produces the initial authentication token that can be then retrieved via AuthenticationHandler.getToken().

Throws:

IOException

process

public final void process()
                   throws Exception

Description copied from interface: AuthenticationHandler

Produces the next authentication token, if any.

Throws:

Exception - if an error occurs

createContext

protected abstract GSSContext createContext()
                                     throws Exception

Creates the GSSContext to use.

Returns:

a fresh GSSContext to use

Throws:

Exception - if the context cannot be created

extractToken

protected abstract byte[] extractToken(P input)
                                throws Exception

Extracts the token from the last set parameters.

Parameters:

input - to extract the token from

Returns:

the extracted token, or null if none

Throws:

Exception - if an error occurs