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java.net
Class ZSocketImpl  

java.lang.Object
  java.net.SocketImpl
      java.net.PlainSocketImpl
          java.net.ZSocketImpl

All Implemented Interfaces:

SocketOptions

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class ZSocketImpl

extends PlainSocketImpl

This class is the main entry point to the compression layer. It provides method to deal with compressed objects through the incapsulation into streams.

Version:

1.0

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Nested Class Summary
(package private)  class	PlainSocketImpl.SocketInputStream           A stream which reads from the socket implementation.
(package private)  class	PlainSocketImpl.SocketOutputStream           A stream which writes to the socket implementation.

 

Field Summary
(package private) static int	_Jv_IP_MULTICAST_IF_
(package private) static int	_Jv_IP_MULTICAST_IF2_
(package private) static int	_Jv_IP_MULTICAST_LOOP_
(package private) static int	_Jv_IP_TOS_
(package private) static int	_Jv_SO_BINDADDR_
(package private) static int	_Jv_SO_BROADCAST_
(package private) static int	_Jv_SO_KEEPALIVE_
(package private) static int	_Jv_SO_LINGER_
(package private) static int	_Jv_SO_OOBINLINE_
(package private) static int	_Jv_SO_RCVBUF_
(package private) static int	_Jv_SO_REUSEADDR_
(package private) static int	_Jv_SO_SNDBUF_
(package private) static int	_Jv_SO_TIMEOUT_
(package private) static int	_Jv_TCP_NODELAY_
protected  Connector	conn           The Connector is responsible for packet handling.
(package private)  int	fnum           The OS file handle representing the socket.
protected  java.io.InputStream	input
(package private)  InetAddress	localAddress
protected  java.io.OutputStream	output
(package private)  int	timeout

 

Fields inherited from class java.net.SocketImpl

address, fd, localport, port

 

Fields inherited from interface java.net.SocketOptions

IP_MULTICAST_IF, IP_MULTICAST_IF2, IP_MULTICAST_LOOP, IP_TOS, SO_BINDADDR, SO_BROADCAST, SO_KEEPALIVE, SO_LINGER, SO_OOBINLINE, SO_RCVBUF, SO_REUSEADDR, SO_SNDBUF, SO_TIMEOUT, TCP_NODELAY

 

Constructor Summary
(package private)	ZSocketImpl()

 

Method Summary
protected  void	accept(SocketImpl s)           Accepts a connection on this socket.
protected  int	available()           Returns the number of bytes that the caller can read from this socket without blocking.
protected  void	bind(InetAddress host, int port)           Binds to the specified port on the specified addr.
void	close()           This method stops the connector before object deallocation.
protected  void	connect(InetAddress host, int port)           Connects to the remote address and port specified as arguments.
protected  void	connect(SocketAddress addr, int timeout)           Connects to the socket to the host specified in address.
protected  void	connect(java.lang.String host, int port)           Connects to the remote hostname and port specified as arguments.
protected  void	create(boolean stream)           Creates a new socket that is not bound to any local address/port and is not connected to any remote address/port.
protected  void	finalize()           Called on an object by the Virtual Machine at most once, at some point after the Object is determined unreachable but before it is destroyed.
java.io.InputStream	getInputStream()           When this method is first invoked, a connector is created with a SocketInputStream and a SocketOutputStream bound to it.
java.lang.Object	getOption(int optID)           Returns the current setting of the specified option.
protected  java.io.OutputStream	getOutputStream()           When this method is first invoked, a connector is created with a SocketInputStream and a SocketOutputStream bound to it.
protected  void	listen(int backlog)           Starts listening for connections on a socket.
protected  void	sendUrgentData(int data)           Sends one byte of urgent data to the socket.
void	setOption(int optID, java.lang.Object value)           Sets the specified option on a socket to the passed in object.
void	shutdownInput()           Shut down the input side of this socket.
void	shutdownOutput()           Shut down the output side of this socket.

 

Methods inherited from class java.net.SocketImpl

getFileDescriptor, getInetAddress, getLocalPort, getPort, supportsUrgentData, toString

 

Methods inherited from class java.lang.Object

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

 

Field Detail

conn

protected Connector conn

The Connector is responsible for packet handling.

See Also:

Connector

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input

protected java.io.InputStream input

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output

protected java.io.OutputStream output

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_Jv_TCP_NODELAY_

static final int _Jv_TCP_NODELAY_

See Also:

Constant Field Values

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_Jv_SO_BINDADDR_

static final int _Jv_SO_BINDADDR_

See Also:

Constant Field Values

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_Jv_SO_REUSEADDR_

static final int _Jv_SO_REUSEADDR_

See Also:

Constant Field Values

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_Jv_SO_BROADCAST_

static final int _Jv_SO_BROADCAST_

See Also:

Constant Field Values

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_Jv_SO_OOBINLINE_

static final int _Jv_SO_OOBINLINE_

See Also:

Constant Field Values

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_Jv_IP_MULTICAST_IF_

static final int _Jv_IP_MULTICAST_IF_

See Also:

Constant Field Values

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_Jv_IP_MULTICAST_IF2_

static final int _Jv_IP_MULTICAST_IF2_

See Also:

Constant Field Values

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_Jv_IP_MULTICAST_LOOP_

static final int _Jv_IP_MULTICAST_LOOP_

See Also:

Constant Field Values

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_Jv_IP_TOS_

static final int _Jv_IP_TOS_

See Also:

Constant Field Values

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_Jv_SO_LINGER_

static final int _Jv_SO_LINGER_

See Also:

Constant Field Values

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_Jv_SO_TIMEOUT_

static final int _Jv_SO_TIMEOUT_

See Also:

Constant Field Values

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_Jv_SO_SNDBUF_

static final int _Jv_SO_SNDBUF_

See Also:

Constant Field Values

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_Jv_SO_RCVBUF_

static final int _Jv_SO_RCVBUF_

See Also:

Constant Field Values

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_Jv_SO_KEEPALIVE_

static final int _Jv_SO_KEEPALIVE_

See Also:

Constant Field Values

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fnum

int fnum

The OS file handle representing the socket. This is used for reads and writes to/from the socket and to close it. When the socket is closed this is reset to -1.

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timeout

int timeout

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localAddress

InetAddress localAddress

Constructor Detail

ZSocketImpl

ZSocketImpl()

Method Detail

getOutputStream

protected java.io.OutputStream getOutputStream()
                                        throws java.io.IOException

When this method is first invoked, a connector is created with a SocketInputStream and a SocketOutputStream bound to it. Then a new (compressed) OutputStream is created and returned.

Overrides:

getOutputStream in class PlainSocketImpl

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getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

When this method is first invoked, a connector is created with a SocketInputStream and a SocketOutputStream bound to it. Then a new (compressed) InputStream is created and returned.

Overrides:

getInputStream in class PlainSocketImpl

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close

public void close()
           throws java.io.IOException

This method stops the connector before object deallocation.

Overrides:

close in class PlainSocketImpl

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setOption

public void setOption(int optID,
                      java.lang.Object value)
               throws SocketException

Description copied from interface: SocketOptions

Sets the specified option on a socket to the passed in object. For options that take an integer argument, the passed in object is an Integer. For options that are set to on or off, the value passed will be a Boolean. The optionId parameter is one of the defined constants in this interface.

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getOption

public java.lang.Object getOption(int optID)
                           throws SocketException

Description copied from interface: SocketOptions

Returns the current setting of the specified option. The Object returned will be an Integer for options that have integer values. For options that are set to on or off, a Boolean will be returned. The optionId parameter is one of the defined constants in this interface.

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shutdownInput

public void shutdownInput()
                   throws java.io.IOException

Description copied from class: SocketImpl

Shut down the input side of this socket. Subsequent reads will return end-of-file.

Overrides:

shutdownInput in class SocketImpl

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shutdownOutput

public void shutdownOutput()
                    throws java.io.IOException

Description copied from class: SocketImpl

Shut down the output side of this socket. Subsequent writes will fail with an IOException.

Overrides:

shutdownOutput in class SocketImpl

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create

protected void create(boolean stream)
               throws java.io.IOException

Description copied from class: SocketImpl

Creates a new socket that is not bound to any local address/port and is not connected to any remote address/port. This will be created as a stream socket if the stream parameter is true, or a datagram socket if the stream parameter is false.

Specified by:

create in class SocketImpl

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connect

protected void connect(java.lang.String host,
                       int port)
                throws java.io.IOException

Description copied from class: SocketImpl

Connects to the remote hostname and port specified as arguments.

Specified by:

connect in class SocketImpl

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connect

protected void connect(InetAddress host,
                       int port)
                throws java.io.IOException

Description copied from class: SocketImpl

Connects to the remote address and port specified as arguments.

Specified by:

connect in class SocketImpl

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connect

protected void connect(SocketAddress addr,
                       int timeout)
                throws java.io.IOException

Description copied from class: SocketImpl

Connects to the socket to the host specified in address. This method blocks until successful connected or the timeout occurs. A timeout of zero means no timout.

Specified by:

connect in class SocketImpl

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bind

protected void bind(InetAddress host,
                    int port)
             throws java.io.IOException

Description copied from class: SocketImpl

Binds to the specified port on the specified addr. Note that this addr must represent a local IP address.

Note that it is unspecified how to bind to all interfaces on the localhost (INADDR_ANY).

Specified by:

bind in class SocketImpl

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listen

protected void listen(int backlog)
               throws java.io.IOException

Description copied from class: SocketImpl

Starts listening for connections on a socket. The backlog parameter is how many pending connections will queue up waiting to be serviced before being accept'ed. If the queue of pending requests exceeds this number, additional connections will be refused.

Specified by:

listen in class SocketImpl

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accept

protected void accept(SocketImpl s)
               throws java.io.IOException

Description copied from class: SocketImpl

Accepts a connection on this socket.

Specified by:

accept in class SocketImpl

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available

protected int available()
                 throws java.io.IOException

Description copied from class: SocketImpl

Returns the number of bytes that the caller can read from this socket without blocking.

Specified by:

available in class SocketImpl

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sendUrgentData

protected void sendUrgentData(int data)
                       throws java.io.IOException

Description copied from class: SocketImpl

Sends one byte of urgent data to the socket.

Specified by:

sendUrgentData in class SocketImpl

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finalize

protected void finalize()
                 throws java.lang.Throwable

Description copied from class: java.lang.Object

Called on an object by the Virtual Machine at most once, at some point after the Object is determined unreachable but before it is destroyed. You would think that this means it eventually is called on every Object, but this is not necessarily the case. If execution terminates abnormally, garbage collection does not always happen. Thus you cannot rely on this method to always work. For finer control over garbage collection, use references from the java.lang.ref package.

Virtual Machines are free to not call this method if they can determine that it does nothing important; for example, if your class extends Object and overrides finalize to do simply super.finalize().

finalize() will be called by a java.lang.Thread that has no locks on any Objects, and may be called concurrently. There are no guarantees on the order in which multiple objects are finalized. This means that finalize() is usually unsuited for performing actions that must be thread-safe, and that your implementation must be use defensive programming if it is to always work.

If an Exception is thrown from finalize() during garbage collection, it will be patently ignored and the Object will still be destroyed.

It is allowed, although not typical, for user code to call finalize() directly. User invocation does not affect whether automatic invocation will occur. It is also permitted, although not recommended, for a finalize() method to "revive" an object by making it reachable from normal code again.

Unlike constructors, finalize() does not get called for an object's superclass unless the implementation specifically calls super.finalize().

The default implementation does nothing.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> java >> [ net overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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