org.lsst.ccs.monitor

Class CalcDevice

java.lang.Object

org.lsst.ccs.monitor.Device

org.lsst.ccs.monitor.CalcDevice

All Implemented Interfaces:

HardwareController, HasLifecycle

public class CalcDevice
extends Device

"Device" for performing calculations.

Author:

Owen Saxton

Field Summary

Fields inherited from class org.lsst.ccs.monitor.Device

chanMask, ctlChans, disabled, fullName, inited, lineMask, lineState, lineWarm, log, mon, name, online, s

Constructor Summary

Constructors

Constructor and Description
CalcDevice()

Method Summary

Modifier and Type	Method and Description
protected int[]	checkChannel(String name, int hwChan, String type, String subtype) Checks a channel's parameters for validity.
protected void	close() Closes the connection.
protected void	initChannel(String name, int id, int hwChan, int type, int subtype) Completes the initialization of a calculation channel.
protected void	initialize() Performs basic initialization.
protected double	readChannel(int hwChan, int type) Reads a channel.

Methods inherited from class org.lsst.ccs.monitor.Device

addChannel, addLine, checkHardware, checkHwLine, checkLine, checkOnline, checkTimeout, configure, disable, dropChannel, enable, getFullName, getName, getOutputLines, init, initChannel, initDevice, initSensors, isHwLineSet, isLineSet, isOnline, isTimeout, readChannelGroup, readChannelNow, readSensors, setHwLine, setLine, setLineWarm, setOnline, setOutputLines, testOnline

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.framework.HardwareController

checkStarted, checkStopped

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

build, postBuild, postInit, postShutdown, postStart, shutdown, start

Constructor Detail

CalcDevice

public CalcDevice()

Method Detail

initialize

protected void initialize()

Performs basic initialization.

Specified by:

initialize in class Device

close

protected void close()

Closes the connection.

Specified by:

close in class Device

checkChannel

protected int[] checkChannel(String name,
                             int hwChan,
                             String type,
                             String subtype)
                      throws Exception

Checks a channel's parameters for validity.

Overrides:

checkChannel in class Device

Parameters:

name - The name of the channel.

hwChan - The hardware channel number.

type - The channel type string.

subtype - The channel subtype string.

Returns:

A two-element array containing the encoded type [0] and subtype [1].

Throws:

Exception - if any errors found in the parameters

initChannel

protected void initChannel(String name,
                           int id,
                           int hwChan,
                           int type,
                           int subtype)

Completes the initialization of a calculation channel. Has to be done here, after all channels have been configured

Overrides:

initChannel in class Device

Parameters:

name - The channel name

id - The channel ID

hwChan - The hardware channel number.

type - The encoded channel type returned by checkChannel.

subtype - The channel subtype returned by checkChannel.

readChannel

protected double readChannel(int hwChan,
                             int type)

Reads a channel.

Overrides:

readChannel in class Device

Parameters:

hwChan - The hardware channel number.

type - The encoded channel type.

Returns:

The value read from the channel