org.lsst.ccs.subsystems.fcs
Class FilterLatchModule

java.lang.Object
  java.util.Observable
      org.lsst.ccs.framework.Module
          org.lsst.ccs.subsystems.fcs.FilterLatchModule

All Implemented Interfaces:

Serializable, Observer

Direct Known Subclasses:

SimuFilterLatchModule

public class FilterLatchModule
extends org.lsst.ccs.framework.Module

This is a model for a latch. A latch is what holds a filter in the trucks of the autochanger. There is 2 latches : one on each side of the filter. The state of the latches are monitoring by digital sensors : one sensor to know if a filter is in the latch or not and 2 status sensors to know if the latch is locked or unlocked. If the 2 status sensors are inconsistent, the latch is in error.

Author:

virieux

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.lsst.ccs.framework.Module

org.lsst.ccs.framework.Module.ValueUpdate

Field Summary

protected NumericSensor	filterPresenceSensor
protected NumericSensor	lockSensor
protected NumericSensor	unlockSensor
protected boolean	updatingState This is used when we update the latch state with the values returned by the sensors.

Fields inherited from class org.lsst.ccs.framework.Module

configMethods, log, name, nObserverThreads, registry, tickMillis

Constructor Summary

FilterLatchModule()

Method Summary

String	close()
NumericSensor	getFilterPresenceSensor()
LatchActuatorModule	getLatchActuator()
NumericSensor	getLockSensor()
FcsEnumerations.LockStatus	getLockStatus()
StatusDataPublishedByLatch	getStatusData()
NumericSensor	getUnlockSensor()
void	initModule()
boolean	isFilterEngaged()
boolean	isInError()
boolean	isLocked()
boolean	isUnlocked()
String	open()
void	setFilterPresenceSensor(NumericSensor filterPresenceSensor)
void	setLatchActuator(LatchActuatorModule latchActuator)
void	setLockSensor(NumericSensor lockSensor)
void	setLockStatus(FcsEnumerations.LockStatus lockStatus)
void	setUnlockSensor(NumericSensor unlockSensor)
void	updateState(String hexaValue)

Methods inherited from class org.lsst.ccs.framework.Module

change, checkHardware, dropConfigurationContext, getCheckedValueFromConfiguration, getContext, getModule, getName, getNObserverThreads, getObservables, getSubsystem, getTickMillis, init, listens, newConfigurationContext, notifyChange, notifyChangeWithoutPreliminaryChecks, processUpdate, publishData, publishData, publishData, publishData, register, register, sendToReply, sendToStatus, setBeanName, setContext, setName, setNObserverThreads, setObservables, setStateModularSubsystem, setStateModularSubsystem, setTickMillis, shutdownCommand, shutdownNow, start, startTicking, tick, update

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

filterPresenceSensor

protected NumericSensor filterPresenceSensor

lockSensor

protected NumericSensor lockSensor

unlockSensor

protected NumericSensor unlockSensor

updatingState

protected volatile boolean updatingState

This is used when we update the latch state with the values returned by the sensors.

Constructor Detail

FilterLatchModule

public FilterLatchModule()

Method Detail

getLatchActuator

public LatchActuatorModule getLatchActuator()

setLatchActuator

public void setLatchActuator(LatchActuatorModule latchActuator)

getFilterPresenceSensor

public NumericSensor getFilterPresenceSensor()

setFilterPresenceSensor

public void setFilterPresenceSensor(NumericSensor filterPresenceSensor)

getLockSensor

public NumericSensor getLockSensor()

setLockSensor

public void setLockSensor(NumericSensor lockSensor)

getUnlockSensor

public NumericSensor getUnlockSensor()

setUnlockSensor

public void setUnlockSensor(NumericSensor unlockSensor)

initModule

public void initModule()

Overrides:

initModule in class org.lsst.ccs.framework.Module

getLockStatus

public FcsEnumerations.LockStatus getLockStatus()

setLockStatus

public void setLockStatus(FcsEnumerations.LockStatus lockStatus)

getStatusData

public StatusDataPublishedByLatch getStatusData()

open

public String open()
            throws org.lsst.ccs.bus.BadCommandException,
                   org.lsst.ccs.bus.ErrorInCommandExecutionException,
                   HardwareErrorDetectedException

Throws:

org.lsst.ccs.bus.BadCommandException

org.lsst.ccs.bus.ErrorInCommandExecutionException

HardwareErrorDetectedException

close

public String close()
             throws org.lsst.ccs.bus.BadCommandException,
                    org.lsst.ccs.bus.ErrorInCommandExecutionException,
                    HardwareErrorDetectedException

Throws:

org.lsst.ccs.bus.BadCommandException

org.lsst.ccs.bus.ErrorInCommandExecutionException

HardwareErrorDetectedException

isLocked

public boolean isLocked()

isUnlocked

public boolean isUnlocked()

isFilterEngaged

public boolean isFilterEngaged()

isInError

public boolean isInError()

updateState

public void updateState(String hexaValue)