es.ants.felixgm.trmsim_wsn.trm.lftm
Class LFTM_Sensor

java.lang.Object
  es.ants.felixgm.trmsim_wsn.network.Sensor
      es.ants.felixgm.trmsim_wsn.trm.lftm.LFTM_Sensor

All Implemented Interfaces:

java.lang.Runnable

public class LFTM_Sensor
extends Sensor

This class models a Sensor implementing LFTM

Since:

0.4

Version:

0.4

Author:

Félix Gómez Mármol, Gregorio Martínez Pérez

Field Summary

protected static int	_numServers Number of servers composing the network this sensor belongs to
protected java.util.HashMap<LFTM_Service,Variable>	_servicesGoodness Goodness of this sensor related to each provided service
protected Variable	clientConformity Client's conformity, used to assess the client satisfaction with a received service
protected Variable	clientGoodness Client's goodness, used to assess the level of punishment or reward to apply to a trustworthy or untrustworthy server
protected double	costWeight Service's cost weight used when comparing two services
protected double	deliveryWeight Service's delivery time weight used when comparing two services
protected double	priceWeight Service's price weight used when comparing two services
protected double	qualityWeight Service's quality weight used when comparing two services

Fields inherited from class es.ants.felixgm.trmsim_wsn.network.Sensor

_maxDistance, activeState, collusion, dynamic, id, idCount, links, numRequests, numRequestsThreshold, numRequestsTimer, outcome, requiredService, runningSimulation, servicesGoodness, sleepTimer, sleepTimerAux, transmittedDistance, trmmodelWSN, xPosition, yPosition

Constructor Summary

LFTM_Sensor()
This constructor creates a new Sensor implementing LFTM

LFTM_Sensor(int id, double x, double y)
This constructor creates a new Sensor implementing LFTM

Method Summary

void	addLink(Sensor node) Adds a link to a given sensor
void	addService(Service service, double goodness) Adds a new service to the set of offered services of this sensor
Variable	evaluateSatisfaction(Variable servicesComparison) This method evaluates the client satisfaction with the received service using both the comparison between the expected service and the actually received one, and the client's conformity
Variable	get_clientGoodness() This method returns this client's goodness
double	get_costWeight() This method returns the service's cost weight used when comparing two services
double	get_deliveryWeight() This method returns the service's delivery time weight used when comparing two services
double	get_goodness(Service service) Gets the goodness of a given service
int	get_numServers() Returns the number of servers of the network
double	get_priceWeight() This method returns the service's price weight used when comparing two services
double	get_qualityWeight() This method returns the service's quality weight used when comparing two services
double	getHeuristic(Sensor sensor) Gets the heuristic value with a given neighbor
double	getPheromone(Sensor sensor) Gets the pheromone trace with a given neighbor
void	removeService(Service service) Removes a service from the set of offered services by this sensor
void	reset() This method resets a Sensor to its initial state
Service	serve(Service service, java.util.Vector<Sensor> path) This method returns a requested service.
void	set_goodness(Service service, double goodness) Sets the goodness of a given service
void	set_requiredService(Service requiredService) Updates the client required Service.
void	setHeuristic(Sensor sensor, double value) Sets the heuristic trace value of the link connecting to a certain neighbor
static void	setNumServers(int numServers) Sets the number of servers
void	setPheromone(Sensor sensor, double value) Sets the pheromone trace value of the link connecting to a certain neighbor
java.lang.String	toString() This method returns a String representation of this sensor

Methods inherited from class es.ants.felixgm.trmsim_wsn.network.Sensor

addTransmittedDistance, cancelAllTimers, distance, distanceInHops, equals, findSensors, get_numServices, get_outcome, get_requiredService, get_services, get_transmittedDistance, get_TRModel_WSN, getNeighbors, getService, getX, getY, id, isActive, isNeighbor, isRunningSimulation, offersService, offersService, removeAllNeighbors, removeLink, resetId, run, set_TRModel_WSN, setActiveState, setCollusion, setDynamic, setMaxDistance, setRunningSimulation

Methods inherited from class java.lang.Object

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

Field Detail

_numServers

protected static int _numServers

Number of servers composing the network this sensor belongs to

_servicesGoodness

protected java.util.HashMap<LFTM_Service,Variable> _servicesGoodness

Goodness of this sensor related to each provided service

clientConformity

protected Variable clientConformity

Client's conformity, used to assess the client satisfaction with a received service

clientGoodness

protected Variable clientGoodness

Client's goodness, used to assess the level of punishment or reward to apply to a trustworthy or untrustworthy server

priceWeight

protected double priceWeight

Service's price weight used when comparing two services

costWeight

protected double costWeight

Service's cost weight used when comparing two services

deliveryWeight

protected double deliveryWeight

Service's delivery time weight used when comparing two services

qualityWeight

protected double qualityWeight

Service's quality weight used when comparing two services

Constructor Detail

LFTM_Sensor

public LFTM_Sensor()

This constructor creates a new Sensor implementing LFTM

LFTM_Sensor

public LFTM_Sensor(int id,
                   double x,
                   double y)

This constructor creates a new Sensor implementing LFTM

Parameters:

id - Identifier of the new sensor

x - X coordinate of the new sensor

y - Y coordinate of the new sensor

Method Detail

evaluateSatisfaction

public Variable evaluateSatisfaction(Variable servicesComparison)

This method evaluates the client satisfaction with the received service using both the comparison between the expected service and the actually received one, and the client's conformity

Parameters:

servicesComparison - Comparison between the expected and the actually received service

Returns:

Client's satisfaction with the received service (as a fuzzy set)

serve

public Service serve(Service service,
                     java.util.Vector<Sensor> path)

This method returns a requested service. The similarity between the actually offered service and the actually delivered service depends on the goodness of this sensor about this service. If it has a high goodness both services will be very similar (or equal), otherwise it will deliver a very different service than the one requested

Overrides:

serve in class Sensor

Parameters:

service - Requested service

path - Path leading from the client requesting the service to the server providing it

Returns:

A service more or less similar to the requested one, depending on the goodness of this sensor delivering that certain service

addService

public void addService(Service service,
                       double goodness)

Description copied from class: Sensor

Adds a new service to the set of offered services of this sensor

Overrides:

addService in class Sensor

Parameters:

service - The new service to be added

goodness - The goodness when offering that new service

removeService

public void removeService(Service service)

Description copied from class: Sensor

Removes a service from the set of offered services by this sensor

Overrides:

removeService in class Sensor

Parameters:

service - Service to be removed from the set of offered services by this sensor

get_goodness

public double get_goodness(Service service)
                    throws java.lang.Exception

Description copied from class: Sensor

Gets the goodness of a given service

Overrides:

get_goodness in class Sensor

Parameters:

service - The service to get its goodness

Returns:

The goodness of the given service

Throws:

java.lang.Exception - If this sensor does not offer the given service

set_goodness

public void set_goodness(Service service,
                         double goodness)
                  throws java.lang.Exception

Description copied from class: Sensor

Sets the goodness of a given service

Overrides:

set_goodness in class Sensor

Parameters:

service - The service to set its goodness

goodness - The goodness to be set

Throws:

java.lang.Exception - If this sensor does not offer the given service

set_requiredService

public void set_requiredService(Service requiredService)

Description copied from class: Sensor

Updates the client required Service.

Overrides:

set_requiredService in class Sensor

Parameters:

requiredService - New service.

addLink

public void addLink(Sensor node)

Description copied from class: Sensor

Adds a link to a given sensor

Overrides:

addLink in class Sensor

Parameters:

node - Sensor to link to

get_numServers

public int get_numServers()

Returns the number of servers of the network

Returns:

Number of servers

setNumServers

public static void setNumServers(int numServers)

Sets the number of servers

Parameters:

numServers - Number of servers

getPheromone

public double getPheromone(Sensor sensor)

Gets the pheromone trace with a given neighbor

Parameters:

sensor - One of this sensor's neighbors

Returns:

The pheromone trace with the given neighbor sensor

getHeuristic

public double getHeuristic(Sensor sensor)

Gets the heuristic value with a given neighbor

Parameters:

sensor - One of this sensor's neighbors

Returns:

The heuristic value with the given neighbor sensor

setPheromone

public void setPheromone(Sensor sensor,
                         double value)

Sets the pheromone trace value of the link connecting to a certain neighbor

Parameters:

sensor - Neighbor whose pheromone trace is to be modified

value - New pheromone value

setHeuristic

public void setHeuristic(Sensor sensor,
                         double value)

Sets the heuristic trace value of the link connecting to a certain neighbor

Parameters:

sensor - Neighbor whose heuristic trace is to be modified

value - New heuristic value

get_clientGoodness

public Variable get_clientGoodness()

This method returns this client's goodness

Returns:

This client's goodness

get_priceWeight

public double get_priceWeight()

This method returns the service's price weight used when comparing two services

Returns:

The service's price weight used when comparing two services

get_costWeight

public double get_costWeight()

This method returns the service's cost weight used when comparing two services

Returns:

The service's cost weight used when comparing two services

get_deliveryWeight

public double get_deliveryWeight()

This method returns the service's delivery time weight used when comparing two services

Returns:

The service's delivery time weight used when comparing two services

get_qualityWeight

public double get_qualityWeight()

This method returns the service's quality weight used when comparing two services

Returns:

The service's quality weight used when comparing two services

reset

public void reset()

Description copied from class: Sensor

This method resets a Sensor to its initial state

Specified by:

reset in class Sensor

toString

public java.lang.String toString()

Description copied from class: Sensor

This method returns a String representation of this sensor

Overrides:

toString in class Sensor

Returns:

A String representation of this sensor