org.lsst.ccs.subsystems.fcs

Class AutochangerTwoLatches

java.lang.Object

org.lsst.ccs.subsystems.fcs.AutochangerTwoLatches

All Implemented Interfaces:

org.lsst.ccs.framework.HasLifecycle, org.lsst.ccs.framework.SignalHandler, AlertRaiser

public class AutochangerTwoLatches
extends Object
implements AlertRaiser, org.lsst.ccs.framework.SignalHandler, org.lsst.ccs.framework.HasLifecycle

This class represents a model for the 2 Latches of the autochanger. The Latches hold a filter on the trucks. There is one latch on each side of the filter. Because the ACTION open (or close) for 2 latches is different from opening (or closing) one Latch, then the other one, it's more convenient to have a class to represent 2 Latches at a time.

Author:

virieux

Field Summary

Fields

Modifier and Type	Field and Description
protected org.lsst.ccs.services.DataProviderDictionaryService	dataProviderDictionaryService
protected String	name
protected String	path

Fields inherited from interface org.lsst.ccs.subsystems.fcs.common.AlertRaiser

alertSeparator, FCSLOG

Constructor Summary

Constructors

Constructor and Description
AutochangerTwoLatches(AutochangerLatch latchXminus, AutochangerLatch latchXplus) Build an Object AutochangerTwoLatches from 2 AutochangerLatch.

Method Summary

Modifier and Type	Method and Description
void	build()
void	close() Close latches
StatusDataPublishedByAutochangerTwoLatches	createStatusDataPublishedByTwoLatches() Creates an object to be published on the STATUS bus by AutochangerTwoLatches.
org.lsst.ccs.services.alert.AlertService	getAlertService() return alertService
FcsEnumerations.FilterPresenceStatus	getFilterPresenceStatus() return filterPresenceStatus
FcsEnumerations.LockStatus	getLockStatus()
org.lsst.ccs.Subsystem	getSubsystem()
void	init()
void	initializeHardware() initialize AC latches hardware after initialization.
boolean	isClosed() Return if both latches are CLOSED.
boolean	isEmpty() Returns true if there is no filter is latches.
boolean	isFilterEngagedInError()
boolean	isHoldingFilter() Return true if autochanger is holding a filter.
boolean	isInError() Returns true if one of the latches is in ERROR state.
boolean	isInitialized() Returns true if the 2 latches controllers are initialized.
boolean	isOpened() Return if both latches are OPENED.
void	open() Open the 2 latches.
void	publishData()
void	updateState() Update lockStatus from latchXminus state and latchXplus state.
void	updateStateAndCheckSensors() Checks sensors.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.lsst.ccs.subsystems.fcs.common.AlertRaiser

clearAlarm, getAlertSeparator, raiseAlarm, raiseAlarm, raiseAlarm, raiseAlarm, raiseAlarmOnlyIfNew, raiseAlertOnlyEveryTenMinutes, raiseAlertOnlyEveryTenMinutes, raiseAlertOnlyIfNew, raiseWarning, raiseWarning, raiseWarning, raiseWarning, raiseWarningOnlyEveryTenMinutes, raiseWarningOnlyIfNew

Methods inherited from interface org.lsst.ccs.framework.SignalHandler

signal

Methods inherited from interface org.lsst.ccs.framework.HasLifecycle

postBuild, postInit, postShutdown, postStart, shutdown, start

Field Detail

name

@LookupName
protected String name

path

@LookupPath
protected String path

dataProviderDictionaryService

@LookupField(strategy=TREE)
protected org.lsst.ccs.services.DataProviderDictionaryService dataProviderDictionaryService

Constructor Detail

AutochangerTwoLatches

public AutochangerTwoLatches(AutochangerLatch latchXminus,
                             AutochangerLatch latchXplus)

Build an Object AutochangerTwoLatches from 2 AutochangerLatch.

Parameters:

latchXminus -

latchXplus -

Method Detail

getAlertService

public org.lsst.ccs.services.alert.AlertService getAlertService()

Description copied from interface: AlertRaiser

return alertService

Specified by:

getAlertService in interface AlertRaiser

Returns:

getSubsystem

public org.lsst.ccs.Subsystem getSubsystem()

Specified by:

getSubsystem in interface AlertRaiser

build

public void build()

Specified by:

build in interface org.lsst.ccs.framework.HasLifecycle

init

public void init()

Specified by:

init in interface org.lsst.ccs.framework.HasLifecycle

isInitialized

@Command(type=QUERY,
         level=1,
         description="Returns true if the 2 latches are initialized.")
public boolean isInitialized()

Returns true if the 2 latches controllers are initialized.

Returns:

getFilterPresenceStatus

@Command(type=QUERY,
         level=0,
         description="return filterPresenceStatus")
public FcsEnumerations.FilterPresenceStatus getFilterPresenceStatus()

return filterPresenceStatus

Returns:

getLockStatus

public FcsEnumerations.LockStatus getLockStatus()

isClosed

@Command(type=QUERY,
         level=1,
         description="Returns true if both latches are CLOSED.")
public boolean isClosed()

Return if both latches are CLOSED.

Returns:

isOpened

@Command(type=QUERY,
         level=1,
         description="Returns true if both latches are OPENED.")
public boolean isOpened()

Return if both latches are OPENED.

Returns:

isInError

@Command(type=QUERY,
         level=1,
         description="Returns true if one of the latches is in ERROR state.")
public boolean isInError()

Returns true if one of the latches is in ERROR state. Doesn't read again sensors.

Returns:

isEmpty

@Command(type=QUERY,
         level=1,
         description="Returns true if there is no filter is latches.")
public boolean isEmpty()

Returns true if there is no filter is latches. Doesn't read again sensors.

Returns:

isFilterEngagedInError

public boolean isFilterEngagedInError()

isHoldingFilter

@Command(type=QUERY,
         level=1,
         description="Return true if autochanger is holding a filter.")
public boolean isHoldingFilter()

Return true if autochanger is holding a filter. A filter is ENGAGED and latches are CLOSED. Does not read again sensors values.

Returns:

updateStateAndCheckSensors

public void updateStateAndCheckSensors()

Checks sensors.

Throws:

FcsHardwareException - if some latch sensors are in error or if latches state is not equal on both side of the filter.

FcsHardwareException

updateState

public void updateState()

Update lockStatus from latchXminus state and latchXplus state.

close

public void close()

Close latches

Throws:

FcsHardwareException

open

public void open()

Open the 2 latches.

Throws:

FcsHardwareException

initializeHardware

@Command(type=QUERY,
         level=1,
         description="Initialize AC latches hardware after initialization. To be executed if during boot process some hardware is missing.")
public void initializeHardware()

initialize AC latches hardware after initialization. to be executed if during boot process some hardware is missing.

createStatusDataPublishedByTwoLatches

public StatusDataPublishedByAutochangerTwoLatches createStatusDataPublishedByTwoLatches()

Creates an object to be published on the STATUS bus by AutochangerTwoLatches.

Returns:

publishData

public void publishData()