stella.parameter
Class AzTelescope

java.lang.Object
  util.PropertyContainer
      util.PropertyResources
          util.PropertyBundles
              stella.parameter.AbstractParameter
                  stella.parameter.AbstractCachedParameter
                      stella.parameter.AbstractStatusRequestor
                          stella.parameter.AzTelescope

All Implemented Interfaces:

Cloneable, ErrorDependingParameter, Parameter, StatusRequesting, Value, ExitCleaning, Initializable, LocalizedSupplying, PropertySupplying, Reloadable, ResourceSupplying

public class AzTelescope
extends AbstractStatusRequestor
implements Value, Reloadable

The current position of the telescope, altitude in degrees. It uses a TelescopeStatus error event to retrieve a most accurate position of the telescope. Note that there will still be some deviation from the true position due to the following reasons:

• The position reflected is always the last position sent. On a moving telescope (tracking) this will always result in a sometimes even big deviation.
• Even if the telescope is urged to send a status event just prior to querying this parameter, the latency time (a few 100ms) will prevent exact values on a moving telescope.
• Even if the telescope is at rest, a few arcsec. inaccuracy remains due to the inversion of the pointing model.

Nested Class Summary

Nested classes/interfaces inherited from class util.PropertyResources

PropertyResources.URLResource

Field Summary

private static double	DEFAZHOME The home position of the telescope.
private static String	DEFCOMMAND The default class name of the status event to tackle.
static String	DEFNAME The default name of this parameter.
private static DecimalFormat	df The formatter for the telescope altitude.
static String	KEY_AZHOME The key pointing to the home position of the telescope.

Fields inherited from class stella.parameter.AbstractStatusRequestor

KEY_COMMAND, KEY_DISABLE, KEY_TIMEOUT

Fields inherited from class stella.parameter.AbstractCachedParameter

KEY_CACHE

Fields inherited from class stella.parameter.AbstractParameter

KEY_FORMAT, KEY_NAME, KEY_PRESERVE, UNKNOWN

Fields inherited from class util.PropertyBundles

KEY_LOCALECOUNTRY, KEY_LOCALELANGUAGE, KEY_RESOURCEBUNDLES

Fields inherited from class util.PropertyResources

KEY_NOINITONCREATE, localurl, locate, POSTFIX_DIR, POSTFIX_EXT, POSTFIX_FILE, POSTFIX_LIST, POSTFIX_URL, urlset

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 stella.ErrorDependingParameter

NAMING_EXTENSION

Fields inherited from interface util.ResourceSupplying

KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Constructor Summary

AzTelescope(Map prop)
Constructs a new alt telescope parameter.

Method Summary

Object	getForError(ErrorEvent ee) Returns the azimuth of the telescope deduced from a freshly received TelescopeStatus.
String	getFormatted() Returns the azimuth of the telescope in a properly formatted way.
Number	getValue() Returns the azimuth of the telescope.
protected boolean	isStatusRequested(ErrorEvent ee) Returns true if the error event received is of TelescopeStatus
double	rescanned(String key, String old, String newval) Makes this method public, no further changes.
Number	setValue(Number newaz) Sets the azimuth of the telescope.

Methods inherited from class stella.parameter.AbstractStatusRequestor

getUncached, init, registerError, registerLauncher

Methods inherited from class stella.parameter.AbstractCachedParameter

get, getCache, getCacheFormatted, set

Methods inherited from class stella.parameter.AbstractParameter

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

Methods inherited from class util.PropertyBundles

clone, getLocalized, getLocalized, getLocalizedString, getLocalizedString, loadResource

Methods inherited from class util.PropertyResources

createFrom, createFrom, createFrom, getApplet, getAsResources, getLocalClassLoader, getPropertiesToKey, getPropertiesToKey, getResource, getResourceAsStream, getResourceFromKey, getResources, keyCreate, keyCreate, reload, setApplet

Methods inherited from class util.PropertyContainer

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, reload, removeProperty, setObject, setProperties, setProperty, stringProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface stella.Parameter

get, 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.Initializable

init

Methods inherited from interface util.Reloadable

reload

Methods inherited from interface stella.StatusRequesting

getCache, getCacheFormatted

Methods inherited from interface util.ResourceSupplying

getResource, getResourceAsStream, getResources

Field Detail

KEY_AZHOME

public static final String KEY_AZHOME

The key pointing to the home position of the telescope.

See Also:

Constant Field Values

DEFNAME

public static final String DEFNAME

The default name of this parameter.

See Also:

Constant Field Values

DEFAZHOME

private static final double DEFAZHOME

The home position of the telescope. Value adopted at construct.

See Also:

Constant Field Values

DEFCOMMAND

private static final String DEFCOMMAND

The default class name of the status event to tackle.

See Also:

Constant Field Values

df

private static final DecimalFormat df

The formatter for the telescope altitude.

Constructor Detail

AzTelescope

public AzTelescope(Map prop)

Constructs a new alt telescope parameter. Until the first TelescopeStatus event is registered, this parameter points to the home position of the telescope KEY_AZHOME.

Method Detail

rescanned

public double rescanned(String key,
                        String old,
                        String newval)

Makes this method public, no further changes.

Specified by:

rescanned in interface Reloadable

Overrides:

rescanned in class AbstractStatusRequestor

setValue

public Number setValue(Number newaz)

Sets the azimuth of the telescope.

Specified by:

setValue in interface Value

getValue

public Number getValue()

Returns the azimuth of the telescope. Deduced from the last TelescopeStatus event registered to this parameter.

Specified by:

getValue in interface Value

getFormatted

public String getFormatted()

Returns the azimuth of the telescope in a properly formatted way.

Specified by:

getFormatted in interface Parameter

Overrides:

getFormatted in class AbstractParameter

getForError

public Object getForError(ErrorEvent ee)

Returns the azimuth of the telescope deduced from a freshly received TelescopeStatus. This method is probably not extremly useful, normally a TelescopeStatus error will be registered to this parameter and its value queried later.

Specified by:

getForError in interface ErrorDependingParameter

isStatusRequested

protected boolean isStatusRequested(ErrorEvent ee)

Returns true if the error event received is of TelescopeStatus

Specified by:

isStatusRequested in class AbstractStatusRequestor