com.ibm.di.api.remote.impl.rmi
Class ServerSocketWrapper

java.lang.Object
  java.net.ServerSocket
      com.ibm.di.api.remote.impl.rmi.ServerSocketWrapper

public class ServerSocketWrapper
extends ServerSocket

A wrapper class of ServerSocket class for use by the RMI. ServerSocket class implements server sockets. A server socket waits for requests to come in over the network. It performs some operation based on that request, and then possibly returns a result to the requester.

Constructor Summary

ServerSocketWrapper(ServerSocket aServer)
Creates an unbound server socket.

Method Summary

Socket	accept() Listens for a connection to be made to this socket and accepts it.
void	bind(SocketAddress aEndpoint) Binds the ServerSocketWrapper to a specific address (IP address and port number).
void	bind(SocketAddress aEndpoint, int aBacklog) Binds the ServerSocketWrapper to a specific address (IP address and port number) with specified backlog length.
void	close() Closes this socket.
ServerSocketChannel	getChannel() Returns the unique ServerSocketChannel object associated with this socket, if any.
InetAddress	getInetAddress() Returns the local address of this server socket.
int	getLocalPort() Returns the port on which this socket is listening.
SocketAddress	getLocalSocketAddress() Returns the address of the endpoint this socket is bound to, or null if it is not bound yet.
int	getReceiveBufferSize() Gets the value of the SO_RCVBUF option for this ServerSocketWrapper, that is the proposed buffer size that will be used for Sockets accepted from this ServerSocketWrapper.
boolean	getReuseAddress() Tests if SO_REUSEADDR is enabled.
int	getSoTimeout() Retrive setting for SO_TIMEOUT.
boolean	isBound() Returns the binding state of the ServerSocket.
boolean	isClosed() Returns the closed state of the ServerSocketWrapper.
void	setReceiveBufferSize(int aSize) Sets a default proposed value for the SO_RCVBUF option for sockets accepted from this ServerSocketWrapper.
void	setReuseAddress(boolean aOn) Enable/disable the SO_REUSEADDR socket option.
void	setSoTimeout(int aTimeout) Enable/disable SO_TIMEOUT with the specified timeout, in milliseconds.
String	toString() Returns the implementation address and implementation port of this socket as a String.

Methods inherited from class java.net.ServerSocket

implAccept, setPerformancePreferences, setSocketFactory

Methods inherited from class java.lang.Object

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

Constructor Detail

ServerSocketWrapper

public ServerSocketWrapper(ServerSocket aServer)
                    throws IOException

Creates an unbound server socket.

Parameters:

aServer - ServerSocket object

Throws:

IOException - IO error when opening the socket.

Method Detail

bind

public void bind(SocketAddress aEndpoint)
          throws IOException

Binds the ServerSocketWrapper to a specific address (IP address and port number).

Overrides:

bind in class ServerSocket

Parameters:

aEndpoint - The IP address & port number to bind to.

Throws:

IOException - if the bind operation fails, or if the socket is already bound.

bind

public void bind(SocketAddress aEndpoint,
                 int aBacklog)
          throws IOException

Binds the ServerSocketWrapper to a specific address (IP address and port number) with specified backlog length.

Overrides:

bind in class ServerSocket

Parameters:

aEndpoint - The IP address & port number to bind to.

aBacklog - The listen backlog length.

Throws:

IOException - if the bind operation fails, or if the socket is already bound.

getInetAddress

public InetAddress getInetAddress()

Returns the local address of this server socket.

Overrides:

getInetAddress in class ServerSocket

Returns:

the address to which this socket is bound, or null if the socket is unbound.

getLocalPort

public int getLocalPort()

Returns the port on which this socket is listening.

Overrides:

getLocalPort in class ServerSocket

Returns:

the port number to which this socket is listening or -1 if the socket is not bound yet.

getLocalSocketAddress

public SocketAddress getLocalSocketAddress()

Returns the address of the endpoint this socket is bound to, or null if it is not bound yet.

Overrides:

getLocalSocketAddress in class ServerSocket

Returns:

a SocketAddress representing the local endpoint of this socket, or null if it is not bound yet.

See Also:

getInetAddress(), getLocalPort()

accept

public Socket accept()
              throws IOException

Listens for a connection to be made to this socket and accepts it. The method blocks until a connection is made.

Overrides:

accept in class ServerSocket

Returns:

the new SocketWrapper

Throws:

IOException - if an I/O error occurs when waiting for a connection.

close

public void close()
           throws IOException

Closes this socket.

Overrides:

close in class ServerSocket

Throws:

IOException - if an I/O error occurs when closing the socket.

getChannel

public ServerSocketChannel getChannel()

Returns the unique ServerSocketChannel object associated with this socket, if any.

Overrides:

getChannel in class ServerSocket

Returns:

the server-socket channel associated with this socket, or null if this socket was not created for a channel

isBound

public boolean isBound()

Returns the binding state of the ServerSocket.

Overrides:

isBound in class ServerSocket

Returns:

true if the ServerSocketWrapper succesfuly bound to an address

isClosed

public boolean isClosed()

Returns the closed state of the ServerSocketWrapper.

Overrides:

isClosed in class ServerSocket

Returns:

true if the socket has been closed

setSoTimeout

public void setSoTimeout(int aTimeout)
                  throws SocketException

Enable/disable SO_TIMEOUT with the specified timeout, in milliseconds.

Overrides:

setSoTimeout in class ServerSocket

Parameters:

aTimeout - the specified timeout, in milliseconds.

Throws:

SocketException - if there is an error in the underlying protocol, such as a TCP error.

getSoTimeout

public int getSoTimeout()
                 throws IOException

Retrive setting for SO_TIMEOUT. 0 returns implies that the option is disabled (i.e., timeout of infinity).

Overrides:

getSoTimeout in class ServerSocket

Returns:

the SO_TIMEOUT value

Throws:

IOException - if an I/O error occurs

See Also:

setSoTimeout(int)

setReuseAddress

public void setReuseAddress(boolean aOn)
                     throws SocketException

Enable/disable the SO_REUSEADDR socket option.

Overrides:

setReuseAddress in class ServerSocket

Parameters:

aOn - whether to enable or disable the socket option

Throws:

SocketException - if an error occurs enabling or disabling the SO_RESUEADDR socket option, or the socket is closed.

getReuseAddress

public boolean getReuseAddress()
                        throws SocketException

Tests if SO_REUSEADDR is enabled.

Overrides:

getReuseAddress in class ServerSocket

Returns:

a boolean indicating whether or not SO_REUSEADDR is enabled.

Throws:

SocketException - if there is an error in the underlying protocol, such as a TCP error.

See Also:

setReuseAddress(boolean)

toString

public String toString()

Returns the implementation address and implementation port of this socket as a String.

Overrides:

toString in class ServerSocket

Returns:

a string representation of this socket.

setReceiveBufferSize

public void setReceiveBufferSize(int aSize)
                          throws SocketException

Sets a default proposed value for the SO_RCVBUF option for sockets accepted from this ServerSocketWrapper.

Overrides:

setReceiveBufferSize in class ServerSocket

Parameters:

aSize - the size to which to set the receive buffer size. This value must be greater than 0.

Throws:

SocketException - if there is an error in the underlying protocol, such as a TCP error.

See Also:

getReceiveBufferSize()

getReceiveBufferSize

public int getReceiveBufferSize()
                         throws SocketException

Gets the value of the SO_RCVBUF option for this ServerSocketWrapper, that is the proposed buffer size that will be used for Sockets accepted from this ServerSocketWrapper.

Overrides:

getReceiveBufferSize in class ServerSocket

Returns:

the value of the SO_RCVBUF option for this Socket.

Throws:

SocketException - if there is an error in the underlying protocol, such as a TCP error.

See Also:

setReceiveBufferSize(int)