stella.xml
Class PerNightMerit

java.lang.Object
  util.PropertyContainer
      util.PropertyResources
          util.PropertyBundles
              stella.AbstractMerit
                  stella.xml.PerNightMerit

All Implemented Interfaces:

Serializable, Cloneable, Meriting, Initializable, LocalizedSupplying, PropertySupplying, ResourceSupplying

public class PerNightMerit
extends AbstractMerit

A class defining a time-slot merit for a target that should be observed up to KEY_PERNIGHT times in a night, at least separated by KEY_TIMEOUT. The merit toggles between zero and one.

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Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class util.PropertyResources

PropertyResources.URLResource

Field Summary

private static String	DEFNIGHTLENGTH Default time-span for successful observations.
private static int	DEFPERNIGHT Default number of observations to force time-out.
private static String	DEFTIME Default time parameter name.
private static long	DEFTIMEOUT Default value for the time-out.
static String	KEY_NIGHTLENGTH The key pointing to the name of the nightlength parameter.
static String	KEY_PERNIGHT The number of targets that must be observed to force timeout.
static String	KEY_TIME The key pointing to the name of the time parameter.
static String	KEY_TIMEOUT The key linked to the time-out in milliseconds.

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.ResourceSupplying

KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Constructor Summary

PerNightMerit(Map prop)
Constructs a time-out merit.

Method Summary

double

getMerit(ParameterClustering set, TargetDefinition target, Collection ignore, long within) Calculates the actual time slot merit.

Methods inherited from class stella.AbstractMerit

createMerit, getInitializer, initMerit

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, init, 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, rescanned, setObject, setProperties, setProperty, stringProperties, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface util.ResourceSupplying

getResource, getResourceAsStream, getResources

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

Field Detail

KEY_TIMEOUT

public static final String KEY_TIMEOUT

The key linked to the time-out in milliseconds.

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Constant Field Values

KEY_PERNIGHT

public static final String KEY_PERNIGHT

The number of targets that must be observed to force timeout.

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Constant Field Values

KEY_TIME

public static final String KEY_TIME

The key pointing to the name of the time parameter.

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Constant Field Values

KEY_NIGHTLENGTH

public static final String KEY_NIGHTLENGTH

The key pointing to the name of the nightlength parameter.

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Constant Field Values

DEFTIMEOUT

private static final long DEFTIMEOUT

Default value for the time-out.

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Constant Field Values

DEFPERNIGHT

private static final int DEFPERNIGHT

Default number of observations to force time-out.

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Constant Field Values

DEFNIGHTLENGTH

private static final String DEFNIGHTLENGTH

Default time-span for successful observations.

See Also:

Constant Field Values

DEFTIME

private static final String DEFTIME

Default time parameter name.

See Also:

Constant Field Values

Constructor Detail

PerNightMerit

public PerNightMerit(Map prop)

Constructs a time-out merit. It defaults the KEY_TIMEOUT parameter. Proper creation should be done using the AbstractMerit.createMerit(java.util.Map) method. This create method also takes care of proper parameter overloading.

Method Detail

getMerit

public double getMerit(ParameterClustering set,
                       TargetDefinition target,
                       Collection ignore,
                       long within)

Calculates the actual time slot merit. If the time passed (in ms) since the last observation is less than KEY_TIMEOUT, a merit of zero is returned. If not, the succes being back KEY_PERNIGHT in time is looked at. If this date compared to the actual time is shorter than the night length, zero is returned, otherwise one is returned.
If the target definition is not history aware, one is returned.

Parameters:

set - Current observing conditions.

target - The actual target.

ignore - The list of targetes relevant to the actual target.

within - The relevant time span in ms.