Package biz.onixs.util.network

Interface Acceptor

All Superinterfaces:

AutoCloseable

public interface Acceptor
extends AutoCloseable

The interface provides methods for maintaining multiple listening ports. It allows to add/remove listening port and calls the specified listener when a new connection is accepted via an added listening port.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	Acceptor.Listener	The interface represents a listener for handling accept events.

Field Summary

Fields

Modifier and Type	Field	Description
static Acceptor.Listener	NULL_LISTENER	This field represents a null implementation of the Acceptor.Listener interface.

Method Summary

Modifier and Type	Method	Description
void	addListeningPort(InetSocketAddress bindAddress, Object attachment)	Creates a server-socket bound to the specified address.
int	getBacklog()	Returns the maximum number of pending connections on listen ports.
Acceptor.Listener	getListener()	Returns the listener which will be called in case there is a new connection accepted on a listening port.
boolean	removeListeningPort(int port)	Removes the server-socket corresponding to the port number.
void	setBacklog(int backlog)	Sets the maximum number of pending connections on listen ports.
void	setListener(Acceptor.Listener listener)	Sets the listener which will be called in case there is a new connection accepted on a listening port.

Methods inherited from interface java.lang.AutoCloseable

close

Field Detail

NULL_LISTENER

static final Acceptor.Listener NULL_LISTENER

This field represents a null implementation of the Acceptor.Listener interface.

Method Detail

getListener

Acceptor.Listener getListener()

Returns the listener which will be called in case there is a new connection accepted on a listening port.

Returns:

the listener which will be called in case there is a new connection accepted on a listening port.

setListener

void setListener(Acceptor.Listener listener)

Sets the listener which will be called in case there is a new connection accepted on a listening port. By default, NULL_LISTENER is specified.

Parameters:

listener - listener to be used when a new connection accepted.

addListeningPort

void addListeningPort(InetSocketAddress bindAddress,
                      Object attachment)
               throws IOException

Creates a server-socket bound to the specified address. In case there will be a new connection accepted on the port the specified Acceptor listener will be fired with accepted socket and the specified attachment.

Parameters:

bindAddress - address created server-socket will be bound.

attachment - attachment which will be returned when a new connection will be accepted.

Throws:

IOException - will be thrown in case there is a exception while binding/configuring server-socket.

removeListeningPort

boolean removeListeningPort(int port)
                     throws IOException

Removes the server-socket corresponding to the port number.

Parameters:

port - port number

Returns:

true in case corresponding server-socket is removed, false otherwise.

Throws:

IOException - will be thrown in case there is a exception while unbinding/closing server-socket.

getBacklog

int getBacklog()

Returns the maximum number of pending connections on listen ports.

Returns:

the maximum number of pending connections on listen ports.

setBacklog

void setBacklog(int backlog)

Sets the maximum number of pending connections on listen ports.

Parameters:

backlog - the maximum number of pending connections