com.github.mrstampy.esp.multiconnectionsocket

Class AbstractMultiConnectionSocket<MESSAGE>

java.lang.Object

com.github.mrstampy.esp.multiconnectionsocket.AbstractMultiConnectionSocket<MESSAGE>

Type Parameters:

MESSAGE - the generic type

All Implemented Interfaces:

MultiConnectionSocket

public abstract class AbstractMultiConnectionSocket<MESSAGE>
extends java.lang.Object
implements MultiConnectionSocket

Abstract implementation of a MultiConnectionSocket. This superclass uses Disruptor to pull EEG device messages off a socket and pass them to an Executor for processing. Subclasses type the format of the raw data messages. Should multiple types ie. double and byte arrays be received from the device then a serializable wrapper can be created to contain the data.

Author:

burton

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractMultiConnectionSocket(boolean broadcasting) Instantiates a new abstract multi connection socket.

Method Summary

Modifier and Type	Method and Description
void	addConnectionEventListener(ConnectionEventListener listener) Adds the connection event listener.
void	bindBroadcaster() Binds the broadcaster to the local host and the broadcaster port in AbstractSocketConnector.
boolean	canBroadcast() Returns true if this instance has been configured for broadcasting.
void	clearConnectionEventListeners() Clear connection event listeners.
protected abstract org.apache.mina.core.service.IoHandler	getHandlerAdapter() Gets the handler adapter.
int	getNumChannels() Returns the number of channels.
protected void	initBroadCaster() Initialization of the broadcaster, to send AbstractMultiConnectionEvents to remote processes which have registered for subscriptions.
boolean	isBound() Returns true if the broadcaster is bound.
protected void	notifyConnectionEventListeners(ConnectionEvent.State state) Notify connection event listeners.
protected abstract void	parseMessage(MESSAGE message) Invoked via Disruptor's onEvent processing, implement to notify event listeners and any multi connection subscribers.
protected void	publishMessage(MESSAGE message) EEG device messages are passed to this method which uses Disruptor to pass the message asynchronously for processing by subclasses.
void	removeConnectionEventListener(ConnectionEventListener listener) Removes the connection event listener.
void	setNumChannels(int numChannels) Sets the num channels.
void	start() Connects to the socket.
protected abstract void	startImpl() Implement to create a connection to the EEG device.
void	stop() Closes the connection to the AbstractMultiConnectionSocket socket.
protected abstract void	stopImpl() Implement to close the connection to the EEG device.
void	unbindBroadcaster() Unbinds the broadcaster.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.mrstampy.esp.multiconnectionsocket.MultiConnectionSocket

getChannel, getChannels, isConnected

Constructor Detail

AbstractMultiConnectionSocket

protected AbstractMultiConnectionSocket(boolean broadcasting)
                                 throws java.io.IOException

Instantiates a new abstract multi connection socket.

Parameters:

broadcasting - the broadcasting

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

Method Detail

start

public final void start()
                 throws MultiConnectionSocketException

Description copied from interface: MultiConnectionSocket

Connects to the socket.

Specified by:

start in interface MultiConnectionSocket

Throws:

MultiConnectionSocketException - if already connected or an unexpected error occurs

startImpl

protected abstract void startImpl()
                           throws MultiConnectionSocketException

Implement to create a connection to the EEG device. Messages retrieved from the device should be passed to the AbstractMultiConnectionSocket#publishMessage(String) method.

Throws:

MultiConnectionSocketException - the multi connection socket exception

See Also:

AbstractMultiConnectionSocket#publishMessage(String)

stop

public void stop()

Description copied from interface: MultiConnectionSocket

Closes the connection to the AbstractMultiConnectionSocket socket.

Specified by:

stop in interface MultiConnectionSocket

stopImpl

protected abstract void stopImpl()

Implement to close the connection to the EEG device.

addConnectionEventListener

public void addConnectionEventListener(ConnectionEventListener listener)

Description copied from interface: MultiConnectionSocket

Adds the connection event listener.

Specified by:

addConnectionEventListener in interface MultiConnectionSocket

Parameters:

listener - the listener

removeConnectionEventListener

public void removeConnectionEventListener(ConnectionEventListener listener)

Description copied from interface: MultiConnectionSocket

Removes the connection event listener.

Specified by:

removeConnectionEventListener in interface MultiConnectionSocket

Parameters:

listener - the listener

clearConnectionEventListeners

public void clearConnectionEventListeners()

Description copied from interface: MultiConnectionSocket

Clear connection event listeners.

Specified by:

clearConnectionEventListeners in interface MultiConnectionSocket

bindBroadcaster

public void bindBroadcaster()
                     throws java.io.IOException

Description copied from interface: MultiConnectionSocket

Binds the broadcaster to the local host and the broadcaster port in AbstractSocketConnector.

Specified by:

bindBroadcaster in interface MultiConnectionSocket

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

See Also:

AbstractSocketConnector

unbindBroadcaster

public void unbindBroadcaster()

Description copied from interface: MultiConnectionSocket

Unbinds the broadcaster.

Specified by:

unbindBroadcaster in interface MultiConnectionSocket

See Also:

AbstractSocketConnector

canBroadcast

public boolean canBroadcast()

Description copied from interface: MultiConnectionSocket

Returns true if this instance has been configured for broadcasting.

Specified by:

canBroadcast in interface MultiConnectionSocket

Returns:

true, if successful

isBound

public boolean isBound()

Description copied from interface: MultiConnectionSocket

Returns true if the broadcaster is bound.

Specified by:

isBound in interface MultiConnectionSocket

Returns:

true, if is bound

See Also:

AbstractSocketConnector

notifyConnectionEventListeners

protected void notifyConnectionEventListeners(ConnectionEvent.State state)

Notify connection event listeners.

Parameters:

state - the state

initBroadCaster

protected void initBroadCaster()
                        throws java.io.IOException

Initialization of the broadcaster, to send AbstractMultiConnectionEvents to remote processes which have registered for subscriptions. Invoke during object creation.

Throws:

java.io.IOException - Signals that an I/O exception has occurred.

getHandlerAdapter

protected abstract org.apache.mina.core.service.IoHandler getHandlerAdapter()

Gets the handler adapter.

Returns:

the handler adapter

publishMessage

protected void publishMessage(MESSAGE message)

EEG device messages are passed to this method which uses Disruptor to pass the message asynchronously for processing by subclasses.

Parameters:

message - the message

See Also:

AbstractMultiConnectionSocket#parseMessage(String)

parseMessage

protected abstract void parseMessage(MESSAGE message)

Invoked via Disruptor's onEvent processing, implement to notify event listeners and any multi connection subscribers.

Parameters:

message - the message

getNumChannels

public int getNumChannels()

Description copied from interface: MultiConnectionSocket

Returns the number of channels.

Specified by:

getNumChannels in interface MultiConnectionSocket

Returns:

the num channels

setNumChannels

public void setNumChannels(int numChannels)

Sets the num channels.

Parameters:

numChannels - the new num channels