com.cosylab.acs.maci.manager

Class PingTimerTask

java.lang.Object

java.util.TimerTask

com.cosylab.acs.maci.manager.PingTimerTask

All Implemented Interfaces:

java.lang.Runnable

public class PingTimerTask
extends java.util.TimerTask

Implementation of ping task executed by java.util.Timer. Manager pings its clients (both GUI clients, as well as Containers) repeatedly to verify that they still exist. The return value of Client#ping() can be either "true", indicating that everything is OK with the client, or "false", indicating that client is malfunctioning. If RemoteTransientException or RemoteTimeoutException exception is thrown, the Manager should retry the ping several times, and only then shall the client be assumed to be malfunctioning. If another exception is thrown, the client may be immediately assumed to be malfunctioning. Once the client is found to be malfunctioning, the Manager makes an implicit logout of the client.

Author:

Matej Sekoranja (matej.sekoranja@cosylab.com)

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	FAULT_CODE
protected static java.lang.String	FAULT_FAMILY

Constructor Summary

Constructors

Constructor and Description
PingTimerTask(ManagerImpl manager, java.util.logging.Logger logger, ClientInfo clientInfo, AlarmSource alarmSource) Constructs a ping task which monitors client's state.

Method Summary

Modifier and Type	Method and Description
void	run()
java.lang.String	toString() Returns a single-line rendition of this instance into text.

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

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

Field Detail

FAULT_FAMILY

protected static final java.lang.String FAULT_FAMILY

See Also:

Constant Field Values

FAULT_CODE

protected static final int FAULT_CODE

See Also:

Constant Field Values

Constructor Detail

PingTimerTask

public PingTimerTask(ManagerImpl manager,
                     java.util.logging.Logger logger,
                     ClientInfo clientInfo,
                     AlarmSource alarmSource)

Constructs a ping task which monitors client's state.

Parameters:

manager - manager to which the client is logged in

logger - logger.

clientInfo - info of the client to be monitored

alarmSource - interface to send alarms

activeAlarm - set of active alarms

Method Detail

run

public void run()

Specified by:

run in interface java.lang.Runnable

Specified by:

run in class java.util.TimerTask

See Also:

Runnable.run()

toString

public java.lang.String toString()

Returns a single-line rendition of this instance into text.

Overrides:

toString in class java.lang.Object

Returns:

internal state of this instance