stella.roof

Class LightSwitch

java.lang.Object

util.PropertyContainer

util.PropertyResources

globals.parameter.AbstractParameter

globals.trigger.AbstractTrigger

globals.trigger.SimpleTrigger

io.AbstractSwitch

stella.io.RS485Switch

stella.roof.LightSwitch

All Implemented Interfaces:

Parameter, ParameterDepending, Trigger, DriverDepending, Switch, Cloneable, EventListener, CacheChangedListener, ExitCleaning, Initializable, PropertySupplying, Reloadable, ResourceSupplying, Triggering

public class LightSwitch
extends RS485Switch
implements ParameterDepending, CacheChangedListener

A class providing access to a RS485-enabled light switch. This means the following:

• On the RS485 bus there is a switch that registers two states: on and off. This switch is polled in a PollingRS485Server instance which is registered to the light switch on startup using the registerDriver(io.Driver) method.
• On the RS485 bus there is a relay that allows to switch the light on and off.
• The current observing conditions are known to the light switch. Normally, switching on the light is not allowed in weather-clear phases, except when manually invoked.
• If the RS485 bus switch is toggled, then the current observing conditions and the status of the KEY_ALLOWONCLEAR flag are checked. If weather conditions are clear and the KEY_ALLOWONCLEAR flag is false, the light is not switched on. Otherwise, it is turned on using a time-out of KEY_TIMEOUT.
• Manual switching of the light with the remote-accessible #switchOn, #switchOff, and the #switchOnTimeout methods is always allowed.

Nested Class Summary

Nested classes/interfaces inherited from class util.PropertyResources

PropertyResources.Load, PropertyResources.URLResource

Field Summary

Fields

Modifier and Type	Field and Description
private static boolean	DEFALLOWONCLEAR The default allowance to switch on light during night.
private static int	DEFCHANNEL The defalt input channel to read.
private static boolean	DEFINVERSE The default inverse mask interpretation (false).
private static int	DEFMASK The bits masking to the open-roof switches, used as default.
static String	DEFNAME The default parameter name.
private static String	DEFREADSWITCH The default read switch string.
private static String	DEFSERIAL The default serial driver name.
private static int	DEFSKIP The default number of chars to skip on digital input.
private static String	DEFSWITCHOFF The default serial command to switch on the light.
private static String	DEFSWITCHON The default serial command to switch on the light.
private static long	DEFTIMEOUT The default time out after witch light is turned off again.
private Trigger	forced Monitors forced switches.
static String	KEY_ALLOWONCLEAR If true, light may also be switched on during roof open.
static String	KEY_CHANNEL The key pointing to the digital input word to interpret.
static String	KEY_INVERSE The key for interpreting the mask inversely, true or false.
static String	KEY_MASK The key for interpreting the return bitmask as true or false.
static String	KEY_READSWITCH The key linked to the string sent to the serial port before reading.
static String	KEY_SKIP The key for skiping leading bytes on digital input.
static String	KEY_TIMEOUT The default time out for light switch off.
private Trigger	open The roof-open trigger.

Fields inherited from class stella.io.RS485Switch

KEY_INITOFF, KEY_SERIAL, KEY_SWITCHOFF, KEY_SWITCHON

Fields inherited from class globals.trigger.SimpleTrigger

KEY_INITBOOLEAN

Fields inherited from class globals.parameter.AbstractParameter

KEY_FORMAT, KEY_NAME, KEY_PRESERVE, UNKNOWN

Fields inherited from class util.PropertyResources

KEY_NOINITONCREATE, POSTFIX_ALPHABET, POSTFIX_BYTES, POSTFIX_DIR, POSTFIX_EXT, POSTFIX_FILE, POSTFIX_LIST, POSTFIX_MODTIME, POSTFIX_URL

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Fields inherited from interface util.ResourceSupplying

KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Constructor Summary

Constructors

Constructor and Description
LightSwitch(Map prop) Constructs a new light switch trigger.

Method Summary

Modifier and Type	Method and Description
protected Boolean	getBooleanFromResponse(String read) This method transforms the output of the switches into a single information whether the roof-switches are down.
protected int	getDigiatlIOChannelsFromResponse(String read) The string read in from the serial port has the following format:
void	init() Initializes the light switch.
void	newValue(CacheChangedEvent cce) First, get the current state of the trigger.
boolean	registerDriver(Driver server) Additionally registers the light switch as a cache-changed listener to the polling server.
void	registerParameter(Parameter roof) Registers the weather station.

Methods inherited from class stella.io.RS485Switch

off, on, rescanned

Methods inherited from class io.AbstractSwitch

turnOff, turnOn

Methods inherited from class globals.trigger.SimpleTrigger

getLastToggleTime, getTrigger, setTrigger

Methods inherited from class globals.trigger.AbstractTrigger

get, getElapsedToggleTime, isTrue, set, toggleTrigger

Methods inherited from class globals.parameter.AbstractParameter

createParameter, delivers, exit, getFormatted, getFormatted, getName, getPreserveFile, getString, getString, overrideDefaultName, register, setName, toString

Methods inherited from class util.PropertyResources

clone, createFrom, createFrom, createFrom, createInstance, getApplet, getAsResources, getLocate, getPropertiesToKey, getPropertiesToKey, getResource, getResourceAsStream, getResourceFromKey, getResources, hasLocalURLs, initProperties, keyCreate, keyCreate, reload, setApplet

Methods inherited from class util.PropertyContainer

augment, augment, augment, augment, augment, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, isNew, parseObject, parseObject, reload, removeProperty, requires, setObject, setProperties, setProperty, stringProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface util.Reloadable

reload

Methods inherited from interface globals.Parameter

get, getFormatted, getName, getString, set

Methods inherited from interface util.PropertySupplying

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Methods inherited from interface util.Triggering

getElapsedToggleTime, getLastToggleTime, getTrigger, isTrue, setTrigger, toggleTrigger

Field Detail

KEY_ALLOWONCLEAR

public static final String KEY_ALLOWONCLEAR

If true, light may also be switched on during roof open.

See Also:

Constant Field Values

KEY_TIMEOUT

public static final String KEY_TIMEOUT

The default time out for light switch off.

See Also:

Constant Field Values

KEY_READSWITCH

public static final String KEY_READSWITCH

The key linked to the string sent to the serial port before reading.

See Also:

Constant Field Values

KEY_SKIP

public static final String KEY_SKIP

The key for skiping leading bytes on digital input.

See Also:

Constant Field Values

KEY_CHANNEL

public static final String KEY_CHANNEL

The key pointing to the digital input word to interpret.

See Also:

Constant Field Values

KEY_MASK

public static final String KEY_MASK

The key for interpreting the return bitmask as true or false.

See Also:

Constant Field Values

KEY_INVERSE

public static final String KEY_INVERSE

The key for interpreting the mask inversely, true or false.

See Also:

Constant Field Values

DEFNAME

public static final String DEFNAME

The default parameter name.

See Also:

Constant Field Values

DEFSERIAL

private static final String DEFSERIAL

The default serial driver name.

See Also:

Constant Field Values

DEFREADSWITCH

private static final String DEFREADSWITCH

The default read switch string.

See Also:

Constant Field Values

DEFSKIP

private static final int DEFSKIP

The default number of chars to skip on digital input.

See Also:

Constant Field Values

DEFCHANNEL

private static final int DEFCHANNEL

The defalt input channel to read.

See Also:

Constant Field Values

DEFMASK

private static final int DEFMASK

The bits masking to the open-roof switches, used as default.

See Also:

Constant Field Values

DEFINVERSE

private static final boolean DEFINVERSE

The default inverse mask interpretation (false).

See Also:

Constant Field Values

DEFALLOWONCLEAR

private static final boolean DEFALLOWONCLEAR

The default allowance to switch on light during night.

See Also:

Constant Field Values

DEFSWITCHON

private static final String DEFSWITCHON

The default serial command to switch on the light.

See Also:

Constant Field Values

DEFSWITCHOFF

private static final String DEFSWITCHOFF

The default serial command to switch on the light.

See Also:

Constant Field Values

DEFTIMEOUT

private static final long DEFTIMEOUT

The default time out after witch light is turned off again.

See Also:

Constant Field Values

open

private Trigger open

The roof-open trigger.

forced

private Trigger forced

Monitors forced switches.

Constructor Detail

LightSwitch

public LightSwitch(Map prop)

Constructs a new light switch trigger. As a monitor for notification of cache-cahnged events, this trigger registers itself in the init section.
All additional properties have default values.

Method Detail

init

public void init()
          throws InitException

Initializes the light switch.

Specified by:

init in interface Initializable

Overrides:

init in class RS485Switch

Throws:

InitException

registerDriver

public boolean registerDriver(Driver server)

Additionally registers the light switch as a cache-changed listener to the polling server.

Specified by:

registerDriver in interface DriverDepending

Overrides:

registerDriver in class RS485Switch

Returns:

True if registering at the driver was successful.

registerParameter

public void registerParameter(Parameter roof)

Registers the weather station. The station is queried for the current weather if we have a switch-signal to turn the light on. Only if the current weather conditions are bad, the light is turned on. This restriction can be overruled by setting the KEY_ALLOWONCLEAR to true. Note that direct switches of the light via the remote methods are not affected by the current weather.

Specified by:

registerParameter in interface ParameterDepending

newValue

public void newValue(CacheChangedEvent cce)

First, get the current state of the trigger. If the trigger value has changed, then switch the light

Specified by:

newValue in interface CacheChangedListener

getBooleanFromResponse

protected Boolean getBooleanFromResponse(String read)

This method transforms the output of the switches into a single information whether the roof-switches are down. This method logical ANDs the digital output channels with this trigger's KEY_MASK and returns true if the result is equal to the trigger mask.

getDigiatlIOChannelsFromResponse

protected int getDigiatlIOChannelsFromResponse(String read)

The string read in from the serial port has the following format:

               CH#0[CH#1]...[CH#N]
 

Where skip isthe number of chars to ignore at the start of the string. The following channels are all iun 2-char format, each representing a single byte. It depends on the module used how many channels will be available on the returned string. Depending on the values given in the required properties KEY_SKIP and KEY_CHANNEL, the returned integer represents the byte as deduced from a two-char hex-string.

Examples:

• NuDam 6060, roof relay, also used for deducing the power-on state: Returns !0x0y00, where x is the bit representation for the 4 output-channels. Y is the bit representation of the 4 input-channels. Note that reading the input channels can be either done by setting the skip to three and reading input channel 0, or by setting skip to 1 (skipping only the '!' char) and setting the read channel to 1.
• NuDam 6058, roof input. Returns !0x0yAABBCC where x denotes the I/O status of the ports (F for all input). y is the bit representation of the 4 dedicated input channels. AA to CC corresponds to the values of the channels 1 to 3. Note that these may also be used as output channels.
  Normal queries will set the skip to 3 and read data from the appropriate channel.