Summary: Protected Ctors | Methods | Inherited Methods | [Expand All]

public abstract class

SSLSocket

extends Socket

java.lang.Object
↳	java.net.Socket
	↳	javax.net.ssl.SSLSocket

Class Overview

The extension of Socket providing secure protocols like SSL (Secure Socket Layer") or TLS (Transport Layer Security).

Summary

Protected Constructors
	SSLSocket() Only to be used by subclasses.
	SSLSocket(String host, int port) Only to be used by subclasses.
	SSLSocket(InetAddress address, int port) Only to be used by subclasses.
	SSLSocket(String host, int port, InetAddress clientAddress, int clientPort) Only to be used by subclasses.
	SSLSocket(InetAddress address, int port, InetAddress clientAddress, int clientPort) Only to be used by subclasses.

Public Methods
abstract void	addHandshakeCompletedListener(HandshakeCompletedListener listener) Registers the specified listener to receive notification on completion of a handshake on this connection.
abstract boolean	getEnableSessionCreation() Returns whether new SSL sessions may be created by this socket or if existing sessions must be reused.
abstract String[]	getEnabledCipherSuites() Returns the names of the enabled cipher suites.
abstract String[]	getEnabledProtocols() Returns the names of the enabled protocols.
abstract boolean	getNeedClientAuth() Returns whether this connection requires client authentication.
abstract SSLSession	getSession() Returns the `SSLSession` for this connection.
abstract String[]	getSupportedCipherSuites() Returns the names of the supported cipher suites.
abstract String[]	getSupportedProtocols() Returns the names of the supported protocols.
abstract boolean	getUseClientMode() Returns whether this connection will act in client mode when handshaking.
abstract boolean	getWantClientAuth() Returns whether this connections will request client authentication.
abstract void	removeHandshakeCompletedListener(HandshakeCompletedListener listener) Removes the specified handshake completion listener.
abstract void	setEnableSessionCreation(boolean flag) Sets whether new SSL sessions may be created by this socket or if existing sessions must be reused.
abstract void	setEnabledCipherSuites(String[] suites) Sets the names of the cipher suites to be enabled.
abstract void	setEnabledProtocols(String[] protocols) Sets the names of the protocols to be enabled.
abstract void	setNeedClientAuth(boolean need) Sets whether this connection should require client authentication.
abstract void	setUseClientMode(boolean mode) Sets whether this connection should act in client mode when handshaking.
abstract void	setWantClientAuth(boolean want) Sets whether this connections should request client authentication.
abstract void	startHandshake() Starts a new SSL handshake on this connection.

[Expand]

Inherited Methods

From class java.net.Socket

void	bind(SocketAddress localAddr) Binds this socket to the given local host address and port specified by the SocketAddress `localAddr`.
synchronized void	close() Closes the socket.
void	connect(SocketAddress remoteAddr, int timeout) Connects this socket to the given remote host address and port specified by the SocketAddress `remoteAddr` with the specified timeout.
void	connect(SocketAddress remoteAddr) Connects this socket to the given remote host address and port specified by the SocketAddress `remoteAddr`.
SocketChannel	getChannel() Gets the SocketChannel of this socket, if one is available.
InetAddress	getInetAddress() Gets the IP address of the target host this socket is connected to.
InputStream	getInputStream() Gets an input stream to read data from this socket.
boolean	getKeepAlive() Gets the setting of the socket option `SocketOptions.SO_KEEPALIVE`.
InetAddress	getLocalAddress() Gets the local IP address this socket is bound to.
int	getLocalPort() Gets the local port this socket is bound to.
SocketAddress	getLocalSocketAddress() Gets the local address and port of this socket as a SocketAddress or `null` if the socket is unbound.
boolean	getOOBInline() Gets the setting of the socket option `SocketOptions.SO_OOBINLINE`.
OutputStream	getOutputStream() Gets an output stream to write data into this socket.
int	getPort() Gets the port number of the target host this socket is connected to.
synchronized int	getReceiveBufferSize() Gets the receive buffer size of this socket.
SocketAddress	getRemoteSocketAddress() Gets the remote address and port of this socket as a `SocketAddress` or `null` if the socket is not connected.
boolean	getReuseAddress() Gets the setting of the socket option `SocketOptions.SO_REUSEADDR`.
synchronized int	getSendBufferSize() Gets the send buffer size of this socket.
int	getSoLinger() Gets the value of the socket option `SocketOptions.SO_LINGER`.
synchronized int	getSoTimeout() Gets the timeout for this socket during which a reading operation shall block while waiting for data.
boolean	getTcpNoDelay() Gets the setting of the socket option `SocketOptions.TCP_NODELAY`.
int	getTrafficClass() Gets the value of the socket option `SocketOptions.IP_TOS`.
boolean	isBound() Returns whether this socket is bound to a local address and port.
boolean	isClosed() Returns whether this socket is closed.
boolean	isConnected() Returns whether this socket is connected to a remote host.
boolean	isInputShutdown() Returns whether the incoming channel of the socket has already been closed.
boolean	isOutputShutdown() Returns whether the outgoing channel of the socket has already been closed.
void	sendUrgentData(int value) Sends the given single byte data which is represented by the lowest octet of `value` as "TCP urgent data".
void	setKeepAlive(boolean value) Sets the state of the `SocketOptions.SO_KEEPALIVE` for this socket.
void	setOOBInline(boolean oobinline) Sets the state of the `SocketOptions.SO_OOBINLINE` for this socket.
void	setPerformancePreferences(int connectionTime, int latency, int bandwidth) Sets performance preferences for connectionTime, latency and bandwidth.
synchronized void	setReceiveBufferSize(int size) Sets the receive buffer size of this socket.
void	setReuseAddress(boolean reuse) Sets the state of the `SocketOptions.SO_REUSEADDR` for this socket.
synchronized void	setSendBufferSize(int size) Sets the send buffer size of this socket.
void	setSoLinger(boolean on, int timeout) Sets the state of the `SocketOptions.SO_LINGER` with the given timeout in seconds.
synchronized void	setSoTimeout(int timeout) Sets the reading timeout in milliseconds for this socket.
synchronized static void	setSocketImplFactory(SocketImplFactory fac) Sets the internal factory for creating socket implementations.
void	setTcpNoDelay(boolean on) Sets the state of the `SocketOptions.TCP_NODELAY` for this socket.
void	setTrafficClass(int value) Sets the value of the `SocketOptions.IP_TOS` for this socket.
void	shutdownInput() Closes the input stream of this socket.
void	shutdownOutput() Closes the output stream of this socket.
String	toString() Returns a `String` containing a concise, human-readable description of the socket.

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Is called before the object's memory is being reclaimed by the VM.
final Class<? extends Object>	getClass() Returns the unique instance of Class which represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.

Protected Constructors

protected SSLSocket ()

Only to be used by subclasses.

Creates a TCP socket.

protected SSLSocket (String host, int port)

Only to be used by subclasses.

Creates a TCP socket connection to the specified host at the specified port.

Parameters

host	the host name to connect to.
port	the port number to connect to.

Throws

IOException	if creating the socket fails.
UnknownHostException	if the specified host is not known.

protected SSLSocket (InetAddress address, int port)

Only to be used by subclasses.

Creates a TCP socket connection to the specified address at the specified port.

Parameters

address	the address to connect to.
port	the port number to connect to.

Throws

IOException	if creating the socket fails.

protected SSLSocket (String host, int port, InetAddress clientAddress, int clientPort)

Only to be used by subclasses.

Creates a TCP socket connection to the specified host at the specified port with the client side bound to the specified address and port.

Parameters

host	the host name to connect to.
port	the port number to connect to.
clientAddress	the client address to bind to
clientPort	the client port number to bind to.

Throws

IOException	if creating the socket fails.
UnknownHostException	if the specified host is not known.

protected SSLSocket (InetAddress address, int port, InetAddress clientAddress, int clientPort)

Only to be used by subclasses.

Creates a TCP socket connection to the specified address at the specified port with the client side bound to the specified address and port.

Parameters

address	the address to connect to.
port	the port number to connect to.
clientAddress	the client address to bind to.
clientPort	the client port number to bind to.

Throws

IOException	if creating the socket fails.

Public Methods

public abstract void addHandshakeCompletedListener (HandshakeCompletedListener listener)

Registers the specified listener to receive notification on completion of a handshake on this connection.

Parameters

listener	the listener to register.

Throws

IllegalArgumentException	if `listener` is `null`.

public abstract boolean getEnableSessionCreation ()

Returns whether new SSL sessions may be created by this socket or if existing sessions must be reused.

Returns

true if new sessions may be created, otherwise false.

public abstract String[] getEnabledCipherSuites ()

Returns the names of the enabled cipher suites.

Returns

the names of the enabled cipher suites.

public abstract String[] getEnabledProtocols ()

Returns the names of the enabled protocols.

Returns

the names of the enabled protocols.

public abstract boolean getNeedClientAuth ()

Returns whether this connection requires client authentication. This is only useful for sockets in server mode.

Returns

true if client authentication is required, false if no client authentication is needed.

public abstract SSLSession getSession ()

Returns the SSLSession for this connection. If necessary, a handshake will be initiated, in which case this method will block until the handshake has been established. If the handshake fails, an invalid session object will be returned.

Returns

the session object.

public abstract String[] getSupportedCipherSuites ()

Returns the names of the supported cipher suites.

Returns

the names of the supported cipher suites.

public abstract String[] getSupportedProtocols ()

Returns the names of the supported protocols.

Returns

the names of the supported protocols.

public abstract boolean getUseClientMode ()

Returns whether this connection will act in client mode when handshaking.

Returns

true if this connections will act in client mode when handshaking, false if not.

public abstract boolean getWantClientAuth ()

Returns whether this connections will request client authentication.

Returns

true is client authentication will be requested, false if no client authentication is needed.

public abstract void removeHandshakeCompletedListener (HandshakeCompletedListener listener)

Removes the specified handshake completion listener.

Parameters

listener	the listener to remove.

Throws

IllegalArgumentException	if the specified listener is not registered or `null`.

public abstract void setEnableSessionCreation (boolean flag)

Sets whether new SSL sessions may be created by this socket or if existing sessions must be reused.

Parameters

flag	`true` if new sessions may be created, otherwise `false`.

public abstract void setEnabledCipherSuites (String[] suites)

Sets the names of the cipher suites to be enabled. Only cipher suites returned by getSupportedCipherSuites() are allowed.

Parameters

suites	the names of the to be enabled cipher suites.

Throws

IllegalArgumentException	if one of the cipher suite names is not supported.

public abstract void setEnabledProtocols (String[] protocols)

Sets the names of the protocols to be enabled. Only protocols returned by getSupportedProtocols() are allowed.

Parameters

protocols	the names of the to be enabled protocols.

Throws

IllegalArgumentException	if one of the protocols is not supported.

public abstract void setNeedClientAuth (boolean need)

Sets whether this connection should require client authentication. This is only useful for sockets in server mode. The client authentication is one of the following:

authentication required
authentication requested
no authentication needed

This method overrides the setting of setWantClientAuth(boolean).

Parameters

need	`true` if client authentication is required, `false` if no authentication is needed.

public abstract void setUseClientMode (boolean mode)

Sets whether this connection should act in client mode when handshaking.

Parameters

mode	`true` if this connection should act in client mode, `false` if not.

public abstract void setWantClientAuth (boolean want)

Sets whether this connections should request client authentication. This is only useful for sockets in server mode. The client authentication is one of:

authentication required
authentication requested
no authentication needed

This method overrides the setting of setNeedClientAuth(boolean).

Parameters

want	`true` if client authentication should be requested, `false` if not authentication is needed.

public abstract void startHandshake ()

Starts a new SSL handshake on this connection.

Throws

IOException	if an error occurs.

Interfaces

Classes

Enums

Exceptions

SSLSocket

Class Overview

Summary

Protected Constructors

protected SSLSocket ()

protected SSLSocket (String host, int port)

Parameters

Throws

protected SSLSocket (InetAddress address, int port)

Parameters

Throws

protected SSLSocket (String host, int port, InetAddress clientAddress, int clientPort)

Parameters

Throws

protected SSLSocket (InetAddress address, int port, InetAddress clientAddress, int clientPort)

Parameters

Throws

Public Methods

public abstract void addHandshakeCompletedListener (HandshakeCompletedListener listener)

Parameters

Throws

public abstract boolean getEnableSessionCreation ()

Returns

public abstract String[] getEnabledCipherSuites ()

Returns

public abstract String[] getEnabledProtocols ()

Returns

public abstract boolean getNeedClientAuth ()

Returns

public abstract SSLSession getSession ()

Returns

public abstract String[] getSupportedCipherSuites ()

Returns

public abstract String[] getSupportedProtocols ()

Returns

public abstract boolean getUseClientMode ()

Returns

public abstract boolean getWantClientAuth ()

Returns

public abstract void removeHandshakeCompletedListener (HandshakeCompletedListener listener)

Parameters

Throws

public abstract void setEnableSessionCreation (boolean flag)

Parameters

public abstract void setEnabledCipherSuites (String[] suites)

Parameters

Throws

public abstract void setEnabledProtocols (String[] protocols)

Parameters

Throws

public abstract void setNeedClientAuth (boolean need)

Parameters

public abstract void setUseClientMode (boolean mode)

Parameters

public abstract void setWantClientAuth (boolean want)

Parameters

public abstract void startHandshake ()

Throws