com.aelitis.azureus.core.dht.netcoords.vivaldi.ver1.impl
Class VivaldiPositionImpl

java.lang.Object
  com.aelitis.azureus.core.dht.netcoords.vivaldi.ver1.impl.VivaldiPositionImpl

All Implemented Interfaces:

DHTNetworkPosition, VivaldiPosition

public class VivaldiPositionImpl
extends java.lang.Object
implements VivaldiPosition

Vivaldi Papers : http://www.sigcomm.org/sigcomm2004/papers/p426-dabek111111.pdf

Field Summary

Fields inherited from interface com.aelitis.azureus.core.dht.netcoords.vivaldi.ver1.VivaldiPosition

CONVERGE_EVERY, CONVERGE_FACTOR, ERROR_MIN, FLOAT_ARRAY_SIZE

Fields inherited from interface com.aelitis.azureus.core.dht.netcoords.DHTNetworkPosition

POSITION_TYPE_NONE, POSITION_TYPE_VIVALDI_V1, POSITION_TYPE_VIVALDI_V2

Constructor Summary

VivaldiPositionImpl(HeightCoordinatesImpl coordinates)

Method Summary

boolean	equals(java.lang.Object arg0)
float	estimateRTT(Coordinates coordinates)
float	estimateRTT(DHTNetworkPosition _other)
void	fromFloatArray(float[] data)
Coordinates	getCoordinates()
float	getErrorEstimate()
double[]	getLocation()
byte	getPositionType()
int	getSerialisedSize() number of bytes on wire
boolean	isValid()
void	serialise(java.io.DataOutputStream os)
void	setErrorEstimate(float error)
float[]	toFloatArray()
java.lang.String	toString()
void	update(byte[] _other_id, DHTNetworkPosition _other, float rtt)
void	update(float rtt, Coordinates cj, float ej)
void	update(float rtt, float[] data)

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

VivaldiPositionImpl

public VivaldiPositionImpl(HeightCoordinatesImpl coordinates)

Method Detail

getPositionType

public byte getPositionType()

Specified by:

getPositionType in interface DHTNetworkPosition

getCoordinates

public Coordinates getCoordinates()

Specified by:

getCoordinates in interface VivaldiPosition

getLocation

public double[] getLocation()

Specified by:

getLocation in interface DHTNetworkPosition

getErrorEstimate

public float getErrorEstimate()

Specified by:

getErrorEstimate in interface VivaldiPosition

setErrorEstimate

public void setErrorEstimate(float error)

Specified by:

setErrorEstimate in interface VivaldiPosition

update

public void update(float rtt,
                   Coordinates cj,
                   float ej)

Specified by:

update in interface VivaldiPosition

isValid

public boolean isValid()

Specified by:

isValid in interface DHTNetworkPosition

update

public void update(float rtt,
                   float[] data)

Specified by:

update in interface VivaldiPosition

estimateRTT

public float estimateRTT(Coordinates coordinates)

Specified by:

estimateRTT in interface VivaldiPosition

toFloatArray

public float[] toFloatArray()

Specified by:

toFloatArray in interface VivaldiPosition

fromFloatArray

public void fromFloatArray(float[] data)

Specified by:

fromFloatArray in interface VivaldiPosition

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object arg0)

Overrides:

equals in class java.lang.Object

estimateRTT

public float estimateRTT(DHTNetworkPosition _other)

Specified by:

estimateRTT in interface DHTNetworkPosition

Returns:

Float.NaN if no value available

update

public void update(byte[] _other_id,
                   DHTNetworkPosition _other,
                   float rtt)

Specified by:

update in interface DHTNetworkPosition

getSerialisedSize

public int getSerialisedSize()

Description copied from interface: DHTNetworkPosition

number of bytes on wire

Specified by:

getSerialisedSize in interface DHTNetworkPosition

Returns:

serialise

public void serialise(java.io.DataOutputStream os)
               throws java.io.IOException

Specified by:

serialise in interface DHTNetworkPosition

Throws:

java.io.IOException