com.act365.net
Class GeneralSocketImpl

java.lang.Object
  |
  +--java.net.SocketImpl
        |
        +--com.act365.net.GeneralSocketImpl

All Implemented Interfaces:

java.net.SocketOptions

Direct Known Subclasses:

TCPSocketImpl

public abstract class GeneralSocketImpl

extends java.net.SocketImpl

GeneralDatagramSocketImpl extends java.net.SocketImpl and provides native implementations of all of its abstract methods. The class remains abstract because it leaves its create() method undefined - it is up to subclasses to specify the parameters that will be used to create the underlying socket. The native code calls into the local Berkeley sockets implementation.

Fields inherited from interface java.net.SocketOptions

IP_MULTICAST_IF, SO_BINDADDR, SO_KEEPALIVE, SO_LINGER, SO_RCVBUF, SO_REUSEADDR, SO_SNDBUF, SO_TIMEOUT, TCP_NODELAY

Constructor Summary

GeneralSocketImpl()

Method Summary

void	accept(java.net.SocketImpl newSocket) Accepts a connection request for this socket.
int	available() available() isn't supported.
void	bind(java.net.InetAddress inetAddress, int port) Binds this socket to the local port.
void	close() Closes this socket.
void	connect(java.net.InetAddress dst, int remotePort) Connects this socket to a given destination.
void	connect(java.net.SocketAddress address, int timeout) Connects to the specified host.
void	connect(java.lang.String hostName, int port) Connects this socket to a named host.
void	create(int socketType, int protocol) Creates a new unconnected TCP socket.
static java.net.InetAddress	createInetAddress(int family, byte[] ipAddress) Creates a java.net.InetAddress object with a given IP address.
java.io.InputStream	getInputStream() Gets the input stream.
java.lang.Object	getOption(int optID) Gets the value of a socket option.
java.io.OutputStream	getOutputStream() Gets the output stream.
static int	getSocketDescriptor(java.io.FileDescriptor fd) Gets the socket descriptor from a java.io.FileDescriptor object.
void	listen(int backlog) Listens for connection requests on this socket.
void	sendUrgentData(int data) Urgent data isn't supported.
void	setOption(int optID, java.lang.Object value) Sets the value of a socket option.The value has to be an Integer object.
static void	setSocketDescriptor(java.io.FileDescriptor fd, int sd) Sets the socket descriptor for a java.io.FileDescriptor object.

Methods inherited from class java.net.SocketImpl

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

GeneralSocketImpl

public GeneralSocketImpl()

Method Detail

create

public void create(int socketType,
                   int protocol)
            throws java.io.IOException

Creates a new unconnected TCP socket.

Parameters:

socketType - the socket type as defined in SocketConstants e.g. SOCK_RAW

protocol - the protocol as defined in SocketConstants e.g. IPPROTO_UDP

See Also:

SocketConstants

bind

public void bind(java.net.InetAddress inetAddress,
                 int port)
          throws java.io.IOException

Binds this socket to the local port.

Parameters:

inetAddress - local IP address

port - number of the local port

connect

public void connect(java.lang.String hostName,
                    int port)
             throws java.io.IOException

Connects this socket to a named host.

Parameters:

hostName - name of the remote host

port - port number on the remote host

connect

public void connect(java.net.InetAddress dst,
                    int remotePort)
             throws java.io.IOException

Connects this socket to a given destination.

Parameters:

dst - address of the remote host

remotePort - port number on the remote host

connect

public void connect(java.net.SocketAddress address,
                    int timeout)
             throws java.io.IOException

Connects to the specified host.

listen

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

Listens for connection requests on this socket.

Parameters:

backlog - maxmimum number of pending requests to be serviced simultaneously

accept

public void accept(java.net.SocketImpl newSocket)
            throws java.io.IOException

Accepts a connection request for this socket.

Parameters:

newSocket - socket to be populated with the details of the remote client

close

public void close()
           throws java.io.IOException

Closes this socket.

getSocketDescriptor

public static int getSocketDescriptor(java.io.FileDescriptor fd)

Gets the socket descriptor from a java.io.FileDescriptor object. NB Java provides no public access to the value of the descriptor so it has to be extracted using native code.

setSocketDescriptor

public static void setSocketDescriptor(java.io.FileDescriptor fd,
                                       int sd)

Sets the socket descriptor for a java.io.FileDescriptor object. NB Java provides no public access to the descriptor so its value has to be set using native code.

createInetAddress

public static java.net.InetAddress createInetAddress(int family,
                                                     byte[] ipAddress)

Creates a java.net.InetAddress object with a given IP address.

Parameters:

family - the socket family - normally SocketConstants.AF_INET

ipAddress - the IP address e.g. new byte[] { 127, 0, 0, 1 }

setOption

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

Sets the value of a socket option.The value has to be an Integer object.

Overrides:

setOption in class java.net.SocketImpl

Parameters:

optID - option as defined in java.net.SocketConstants

value - an Integer object that wraps the new value

getOption

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

Gets the value of a socket option. The returned value will be an Integer object.

Overrides:

getOption in class java.net.SocketImpl

Parameters:

optID - option as defined in java.net.SocketConstants

getOutputStream

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

Gets the output stream.

getInputStream

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

Gets the input stream.

available

public int available()
              throws java.io.IOException

available() isn't supported.

sendUrgentData

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

Urgent data isn't supported.