RtjAocsFramework.FailureDetection
Class FollowerFailureDetectionModeManager

java.lang.Object
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  +--RtjAocsFramework.BasicObjects.RootObject
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        +--RtjAocsFramework.BasicObjects.AocsObject
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              +--RtjAocsFramework.ModeManagement.ModeManager
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                    +--RtjAocsFramework.ModeManagement.FollowerModeManager
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                          +--RtjAocsFramework.FailureDetection.FollowerFailureDetectionModeManager

All Implemented Interfaces:

Configurable, EventListener, FailureDetectionModeManager, ModeListener, Monitorable, Resettable, Telemeterable

public class FollowerFailureDetectionModeManager

extends FollowerModeManager

implements FailureDetectionModeManager

Encapsulation of a follower mode manager for the failure detection manager. Concrete failure detection mode managers are defined by the mechanism that they use to decide which particular consistency checkable and monitoring check lists should be returned at any given point in time. This class defines a mode manager that is based on the follower mode manager. In a typical configuration, this mode manager would be slaved to the AOCS mission mode manager.

This class is basically a type-safe wrapper around the follower mode manager component exported by the operational mode framelet.

This failure detection mode manager also performs hard-coded mode change actions: when there a mode transition, all the change objects in the monitoring check list that becomes active are reset. This is advisable because change objects normally have an internal state.

Change Record:

• Version 1.1: Added methods setXxx that are semantically identical to the loadXxx methods but have a signature that complies with the JavaBeans indexed property naming pattern. A minor update to a method comment was also done. Done by A. Pasetti on 23.03.03
• Version 1.2: Modified the default constructor to set the number of strategies to 1. Done by A. Pasetti on 31.03.03
• Version 1.3: Fixed bug in version 1.2: the number of strategies set in the the constructor should be 2, not 1. Done by A. Pasetti on 13.05.03

Copyright: see the Copyright Notice.

Version:

1.3

Author:

Alessandro Pasetti (University of Konstanz)

Field Summary

Fields inherited from class RtjAocsFramework.ModeManagement.ModeManager

currentMode, nModes, nStrategies

Fields inherited from interface RtjAocsFramework.TelemetryManagement.Telemeterable

DEBUG_TM, LONG_TM, NORMAL_TM, NTMFORMATS, SHORT_TM

Constructor Summary

FollowerFailureDetectionModeManager()
Default constructor.

FollowerFailureDetectionModeManager(int numberOfListeners, ModeManager masterModeManager)

Method Summary

ConsistencyCheckableList	getConsistencyCheckableList() Method called by the failure detection manager to retrieve the list of objects to be subjected to a consistency check in the current activation cycle.
MonitoringCheckList	getMonitoringCheckList() Return the currently active monitoring check list.
void	loadConsistencyCheckableList(int mode, ConsistencyCheckableList l) Method to configure the failure detection mode manager.
void	loadMonitoringCheckList(int mode, MonitoringCheckList l) Method to configure the failure detection mode manager.
void	setConsistencyCheckableList(int mode, ConsistencyCheckableList l) This method is identical to method loadConsistencyCheckableList.
void	setMonitoringCheckList(int mode, MonitoringCheckList l) This method is identical to method loadConsistencyCheckableList.

Methods inherited from class RtjAocsFramework.ModeManagement.FollowerModeManager

processModeEvent, setDefaultMode, setMasterModeManager, setNumberOfModes

Methods inherited from class RtjAocsFramework.ModeManagement.ModeManager

addChangeListener, addModeListener, changeMode, disableMode, enableMode, fireChangeEvent, fireModeEvent, forceMode, getAocsObject, getDefaultMode, getImplementer, getMode, getModeChangeAction, getMonitorablePropertyValue, getNumberOfModes, getNumberOfMonitorableProperties, getTelemetryImageLength, isConfigured, isModeLegal, loadImplementer, notifyMonitors, releaseMode, removeChangeListener, removeModeListener, reset, resetConfiguration, setMaxNumberOfChangeListeners, setMaxNumberOfModeListeners, setMode, setModeChangeAction, setNumberOfStrategies, setPropertyMonitorListSize, updateMode, writeToTelemetry

Methods inherited from class RtjAocsFramework.BasicObjects.AocsObject

addConfigurationListener, addFailureListener, finalize, getAocsClock, getConfigurationListenerList, getCycle, getDestructionRecoveryAction, getFailureListenerList, getSystemManager, getTelemetryFormat, getTime, removeConfigurationListener, removeFailureListener, reportConfigurationEvent, reportFailure, resetStaticConfiguration, setAocsClock, setDestructionRecoveryAction, setMaxNumberOfConfigurationListeners, setMaxNumberOfFailureListeners, setSystemManager, setTelemetryFormat

Methods inherited from class RtjAocsFramework.BasicObjects.RootObject

getClassId, getInstanceId, setClassId

Methods inherited from class java.lang.Object

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

Constructor Detail

FollowerFailureDetectionModeManager

public FollowerFailureDetectionModeManager()

Default constructor. The object should not be used before it is configured by setting the master mode manager and the maximum number of listeners.

FollowerFailureDetectionModeManager

public FollowerFailureDetectionModeManager(int numberOfListeners,
                                           ModeManager masterModeManager)

Method Detail

loadConsistencyCheckableList

public void loadConsistencyCheckableList(int mode,
                                         ConsistencyCheckableList l)

Description copied from interface: FailureDetectionModeManager

Method to configure the failure detection mode manager. It associates the consistency checkable list l to operational mode 'mode'.

Specified by:

loadConsistencyCheckableList in interface FailureDetectionModeManager

setConsistencyCheckableList

public void setConsistencyCheckableList(int mode,
                                        ConsistencyCheckableList l)

Description copied from interface: FailureDetectionModeManager

This method is identical to method loadConsistencyCheckableList.

Specified by:

setConsistencyCheckableList in interface FailureDetectionModeManager

loadMonitoringCheckList

public void loadMonitoringCheckList(int mode,
                                    MonitoringCheckList l)

Description copied from interface: FailureDetectionModeManager

Method to configure the failure detection mode manager. It associates the monitoring check list l to operational mode 'mode'.

Specified by:

loadMonitoringCheckList in interface FailureDetectionModeManager

setMonitoringCheckList

public void setMonitoringCheckList(int mode,
                                   MonitoringCheckList l)

Description copied from interface: FailureDetectionModeManager

This method is identical to method loadConsistencyCheckableList.

Specified by:

setMonitoringCheckList in interface FailureDetectionModeManager

getConsistencyCheckableList

public ConsistencyCheckableList getConsistencyCheckableList()

Description copied from interface: FailureDetectionModeManager

Method called by the failure detection manager to retrieve the list of objects to be subjected to a consistency check in the current activation cycle.

Specified by:

getConsistencyCheckableList in interface FailureDetectionModeManager

getMonitoringCheckList

public MonitoringCheckList getMonitoringCheckList()

Return the currently active monitoring check list. If this is different from the monitoring check list returned at the previous activation (which would indicate that a mode change has just taken place), the all the change objects associated to the monitoring check objects in the list are reset.

Specified by:

getMonitoringCheckList in interface FailureDetectionModeManager

See Also:

FailureDetectionModeManager.getMonitoringCheckList()