jist.swans.app
Class AppHeartbeat

java.lang.Object
  jist.swans.app.AppHeartbeat

All Implemented Interfaces:

JistAPI.Proxiable, JistAPI.Timeless, AppInterface, NetInterface.NetHandler

public class AppHeartbeat
extends java.lang.Object
implements AppInterface, NetInterface.NetHandler

Heartbeat application.

Since:

SWANS1.0

Nested Class Summary

Nested classes/interfaces inherited from interface jist.swans.app.AppInterface

AppInterface.TcpApp, AppInterface.ThreadedApp, AppInterface.UdpApp

Field Summary

static short	FRESHNESS throw out information older than FRESHNESS beats.
static long	HEARTBEAT_MAX maximum heartbeat period.
static long	HEARTBEAT_MIN minimum heartbeat period.

Constructor Summary

AppHeartbeat(int nodenum, boolean display)
Create new heartbeat application instance.

Method Summary

void	dropNotify(Message msg, MacAddress nextHopMac, Reason reason) Notification mechanism for packet dropped due to various "Reasons"
AppInterface	getAppProxy() Return self-referencing APPLICATION proxy entity.
NetInterface.NetHandler	getNetProxy() Return self-referencing NETWORK proxy entity.
void	receive(Message msg, NetAddress src, MacAddress lastHop, byte macId, NetAddress dst, byte priority, byte ttl) Receive a message from network layer.
void	run() Run application.
void	run(java.lang.String[] args) Run application.
void	send(NetMessage msg) Send a message through the routing protocol
void	setNetEntity(NetInterface netEntity) Set network entity.

Methods inherited from class java.lang.Object

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

Field Detail

HEARTBEAT_MIN

public static final long HEARTBEAT_MIN

minimum heartbeat period.

See Also:

Constant Field Values

HEARTBEAT_MAX

public static final long HEARTBEAT_MAX

maximum heartbeat period.

See Also:

Constant Field Values

FRESHNESS

public static final short FRESHNESS

throw out information older than FRESHNESS beats.

See Also:

Constant Field Values

Constructor Detail

AppHeartbeat

public AppHeartbeat(int nodenum,
                    boolean display)

Create new heartbeat application instance.

Parameters:

nodenum - node identifier

display - whether to display application output

Method Detail

setNetEntity

public void setNetEntity(NetInterface netEntity)

Set network entity.

Parameters:

netEntity - network entity

getNetProxy

public NetInterface.NetHandler getNetProxy()

Return self-referencing NETWORK proxy entity.

Returns:

self-referencing NETWORK proxy entity

getAppProxy

public AppInterface getAppProxy()

Return self-referencing APPLICATION proxy entity.

Returns:

self-referencing APPLICATION proxy entity

dropNotify

public void dropNotify(Message msg,
                       MacAddress nextHopMac,
                       Reason reason)

Description copied from interface: NetInterface.NetHandler

Notification mechanism for packet dropped due to various "Reasons"

Specified by:

dropNotify in interface NetInterface.NetHandler

receive

public void receive(Message msg,
                    NetAddress src,
                    MacAddress lastHop,
                    byte macId,
                    NetAddress dst,
                    byte priority,
                    byte ttl)

Receive a message from network layer.

Specified by:

receive in interface AppInterface

Specified by:

receive in interface NetInterface.NetHandler

Parameters:

msg - message received

src - source network address

lastHop - source link address

macId - incoming interface

dst - destination network address

priority - packet priority

ttl - packet time-to-live

send

public void send(NetMessage msg)

Description copied from interface: NetInterface.NetHandler

Send a message through the routing protocol

Specified by:

send in interface NetInterface.NetHandler

run

public void run(java.lang.String[] args)

Run application.

Specified by:

run in interface AppInterface

Parameters:

args - command-line parameters

run

public void run()

Run application.

Specified by:

run in interface AppInterface