Class DisBitSet

java.lang.Object

java.util.BitSet

edu.nps.moves.dis7.pdus.DisBitSet

All Implemented Interfaces:

Marshaller, Serializable, Cloneable

Direct Known Subclasses:

AirPlatformAppearance, AirPlatformCapabilities, ArealObjectAppearanceMinefield, CulturalFeatureAppearance, CulturalFeatureCapabilities, DEDamageDescriptionComponentVisualDamageStatus, DEFireFlags, EnvironmentalAppearance, EnvironmentalCapabilities, EnvironmentalProcessEnvironmentStatus, ExpendableAppearance, ExpendableCapabilities, LandPlatformAppearance, LandPlatformCapabilities, LifeFormsAppearance, LifeFormsCapabilities, LinearObjectAppearanceBreach, LinearObjectAppearanceExhaustSmoke, LinearObjectAppearanceMinefieldLaneMarker, LinearObjectAppearanceSpeedBump, LinearObjectAppearanceTankDitchAndConcertinaWire, LinearObjectAppearanceWire, MinefieldDataFusing, MinefieldDataPaintScheme, MinefieldStateAppearanceBitMap, MunitionAppearance, MunitionCapabilities, NonHumanLifeFormsAppearance, ObjectStateAppearanceGeneral, ObjectStateModificationArealObject, ObjectStateModificationLinearObject, ObjectStateModificationPointObject, PointObjectAppearanceAirGroundBurst, PointObjectAppearanceBuildingRubble, PointObjectAppearanceBuildingStructure, PointObjectAppearanceCrater, PointObjectAppearanceDisturbedEarthRoad, PointObjectAppearanceLogCribAbatisEtAl, PointObjectAppearancePothole, PointObjectAppearanceRibbonBridge, PointObjectAppearanceStationaryBridgeAndAVLB, PointObjectAppearanceTree, RadioAppearance, RadioCapabilities, SensorEmitterAppearance, SensorEmitterCapabilities, SpacePlatformAppearance, SpacePlatformCapabilities, StopFreezeFrozenBehavior, SubsurfacePlatformAppearance, SubsurfacePlatformCapabilities, SupplyAppearance, SupplyCapabilities, SurfacePlatformAppearance, SurfacePlatformCapabilities, UAPropulsionPlantConfiguration

public abstract class DisBitSet
extends BitSet
implements Marshaller

This class is backed by a Java library class, BitSet. That class exports its byte array contents in little-endian order (least significant byte first). The DIS spec requires the opposite, which is the default for "network byte order".

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DisBitSet(int length)	Constructor

Method Summary

Modifier and Type	Method	Description
protected static int	calculateMask(int length)	Calculate bit mask
protected static int	calculateMask(int position, int length)	Calculate bit mask
int	getMarshalledSize()	Returns size of this serialized (marshalled) object in bytes
void	marshal(DataOutputStream dos)	Marshal value to DataOutputStream
void	marshal(ByteBuffer byteBuffer)	Marshal value to ByteBuffer
byte[]	marshallCommon()	Marshal value to ByteBuffer
protected void	setbits(int position, int length, int value)	Accessor method to set bits
int	unmarshal(DataInputStream dis)	Deserializes an object from a DataInputStream.
int	unmarshal(ByteBuffer byteBuffer)	Deserializes an object from a ByteBuffer.

Methods inherited from class java.util.BitSet

and, andNot, cardinality, clear, clear, clear, clone, equals, flip, flip, get, get, hashCode, intersects, isEmpty, length, nextClearBit, nextSetBit, or, previousClearBit, previousSetBit, set, set, set, set, size, stream, toByteArray, toLongArray, toString, valueOf, valueOf, valueOf, valueOf, xor

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

DisBitSet

public DisBitSet(int length)

Constructor

Parameters:

length - number of bits

Method Details

calculateMask

protected static int calculateMask(int position,
 int length)

Calculate bit mask

Parameters:

position - in this DisBitSet

length - number of bits

Returns:

bit mask

calculateMask

protected static int calculateMask(int length)

Calculate bit mask

Parameters:

length - number of bits

Returns:

bit mask

setbits

protected void setbits(int position,
 int length,
 int value)

Accessor method to set bits

Parameters:

position - in this DisBitSet

length - number of bits

value - value of bits to set

getMarshalledSize

public int getMarshalledSize()

Returns size of this serialized (marshalled) object in bytes

Specified by:

getMarshalledSize in interface Marshaller

Returns:

serialized size in bytes

See Also:

• https://en.wikipedia.org/wiki/Marshalling_(computer_science)

marshal

public void marshal(DataOutputStream dos)

Marshal value to DataOutputStream

Specified by:

marshal in interface Marshaller

Parameters:

dos - DataOutputStream for output

See Also:

• https://en.wikipedia.org/wiki/Marshalling_(computer_science)

marshal

public void marshal(ByteBuffer byteBuffer)

Marshal value to ByteBuffer

Specified by:

marshal in interface Marshaller

Parameters:

byteBuffer - ByteBuffer for output

See Also:

• https://en.wikipedia.org/wiki/Marshalling_(computer_science)

marshallCommon

public byte[] marshallCommon()

Marshal value to ByteBuffer

Returns:

Little-Endian byte array, network byte order requires reverse

See Also:

• https://en.wikipedia.org/wiki/Marshalling_(computer_science)
• https://en.wikipedia.org/wiki/Endianness

unmarshal

public int unmarshal(DataInputStream dis)

Deserializes an object from a DataInputStream.

Specified by:

unmarshal in interface Marshaller

Parameters:

dis - DataInputStream

Returns:

marshalled serialized size in bytes

See Also:

• DataInputStream
• https://en.wikipedia.org/wiki/Marshalling_(computer_science)

unmarshal

public int unmarshal(ByteBuffer byteBuffer)

Deserializes an object from a ByteBuffer.

Specified by:

unmarshal in interface Marshaller

Parameters:

byteBuffer - input

Returns:

marshalled serialized size in bytes

See Also:

• https://en.wikipedia.org/wiki/Marshalling_(computer_science)