HeartBeatSender

java.lang.Object

java.util.TimerTask

it.polimi.ingsw.Network.HeartBeatSender

All Implemented Interfaces:: Runnable

public class HeartBeatSender extends TimerTask

an auto sender of HeartBeatMessage at regular intervals

Field Summary

Fields

Modifier and Type

Field

Description

private final SocketWrapper

sw

private final Timer

timer
Constructor Summary

Constructors

Constructor

Description

HeartBeatSender(SocketWrapper sw)

Creates the sender but does not activate it
Method Summary

Modifier and Type

Method

Description

void

run()

sends a HeartBeatMessage over the wrapper.

void

start(long keepAlivePeriod)

Activates the sender.

Methods inherited from class java.util.TimerTask
cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- sw
  
  private final SocketWrapper sw
- timer
  
  private final Timer timer
Constructor Details
- HeartBeatSender
  
  public HeartBeatSender(SocketWrapper sw)
  
  Creates the sender but does not activate it
  
  Parameters:
  
  sw - the socket to send heartbeats on
Method Details
- start
  
  public void start(long keepAlivePeriod)
  
  Activates the sender. The sender will stop running only if externally stopped or if the socketwrapper handling it has issues during delivery of a heartbeat.
  
  Parameters:
  
  keepAlivePeriod - the time, in milliseconds, between each HeartBeatMessage sent
- run
  
  public void run()
  
  sends a HeartBeatMessage over the wrapper. In case of errors during the sending of a message, closes the wrapper and cancels the repeating task from the timer.
  
  Specified by:
  
  run in interface Runnable
  
  Specified by:
  
  run in class TimerTask