qcsim.peer.impl
Class PeerBehaviorImpl

java.lang.Object
  |
  +--qcsim.peer.impl.PeerBehaviorImpl

All Implemented Interfaces:

PeerBehavior

public class PeerBehaviorImpl

extends java.lang.Object

implements PeerBehavior

Represents a peer's behavior during a simulation. The peer will use an object of this type to make decisions regarding its behavior.

Version:

1.0

Author:

unascribed

Field Summary

(package private) static int	ACTIVE
(package private) static int	ACTIVITY_ALWAYSUP
(package private) static int	ACTIVITY_ALWAYSUPNOQUERIES
(package private) static int	ACTIVITY_RANDOM
(package private) static int	BOTTOM_CATEGORY
(package private) static int	GOOD_PEER
(package private) static int	HIGHLY_TRUSTED_PEER
(package private) static int	INACTIVE
(package private) static int	MALICIOUS_CAMOUFLAGED
(package private) static int	MALICIOUS_COLLECTIVE
(package private) static int	MALICIOUS_PEER
(package private) static int	MALICIOUS_SPY
(package private) static int	MAX_TTL
(package private) static int	MED_TTL
(package private) static int	MIN_TTL
(package private) static int	RANDOM_CATEGORY
(package private) static int	RPB_RANDOM
(package private) static int	RPB_SIMPLEPROBABILISTIC
(package private) static int	RPB_TRUSTDETERMINISTIC
(package private) static int	RPB_TRUSTPROBABILISTIC
(package private) static int	TOP_CATEGORY

Constructor Summary

PeerBehaviorImpl(Peer peer, int type)
Constructor

Method Summary

void	activity(int activity) Initializes uptime ratio and query activity ratio for all specified peers.
int	categoryPreference() Get the peers category preference.
void	categoryPreference(int preference) Indicates which category of files a peer is likely to respond to.
void	errorFraction(double errorFraction) The fraction of uploads that will contain errors.
double	opinion(Peer peer, boolean authenticFile) Will determine the value a peer should use to update it's local trust
double	queryActivity() The fraction of cycles this peer will participate by sending to queries.
boolean	respond(PeerMsgQuery msg) Will determine if peer should respond to a query
int	responseSelector() This determines how a peer will choose a site to download from.
void	responseSelector(int selector) Set the selector for how a peer will choose a download site.
int	type() The type of peer.
void	type(int type) Set the type of peer.
double	uploadStatus(Peer dest) Will determine the file upload status.

Methods inherited from class java.lang.Object

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

Field Detail

GOOD_PEER

static final int GOOD_PEER

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Constant Field Values

HIGHLY_TRUSTED_PEER

static final int HIGHLY_TRUSTED_PEER

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Constant Field Values

MALICIOUS_PEER

static final int MALICIOUS_PEER

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Constant Field Values

MALICIOUS_COLLECTIVE

static final int MALICIOUS_COLLECTIVE

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Constant Field Values

MALICIOUS_CAMOUFLAGED

static final int MALICIOUS_CAMOUFLAGED

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Constant Field Values

MALICIOUS_SPY

static final int MALICIOUS_SPY

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Constant Field Values

INACTIVE

static final int INACTIVE

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Constant Field Values

ACTIVE

static final int ACTIVE

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Constant Field Values

ACTIVITY_ALWAYSUP

static final int ACTIVITY_ALWAYSUP

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Constant Field Values

ACTIVITY_RANDOM

static final int ACTIVITY_RANDOM

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Constant Field Values

ACTIVITY_ALWAYSUPNOQUERIES

static final int ACTIVITY_ALWAYSUPNOQUERIES

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Constant Field Values

MIN_TTL

static final int MIN_TTL

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Constant Field Values

MED_TTL

static final int MED_TTL

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Constant Field Values

MAX_TTL

static final int MAX_TTL

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Constant Field Values

TOP_CATEGORY

static final int TOP_CATEGORY

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Constant Field Values

BOTTOM_CATEGORY

static final int BOTTOM_CATEGORY

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Constant Field Values

RANDOM_CATEGORY

static final int RANDOM_CATEGORY

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Constant Field Values

RPB_RANDOM

static final int RPB_RANDOM

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Constant Field Values

RPB_TRUSTDETERMINISTIC

static final int RPB_TRUSTDETERMINISTIC

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Constant Field Values

RPB_TRUSTPROBABILISTIC

static final int RPB_TRUSTPROBABILISTIC

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Constant Field Values

RPB_SIMPLEPROBABILISTIC

static final int RPB_SIMPLEPROBABILISTIC

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Constant Field Values

Constructor Detail

PeerBehaviorImpl

public PeerBehaviorImpl(Peer peer,
                        int type)

Constructor

Method Detail

queryActivity

public double queryActivity()

Description copied from interface: PeerBehavior

The fraction of cycles this peer will participate by sending to queries.

Specified by:

queryActivity in interface PeerBehavior

Returns:

the query activity.

type

public int type()

Description copied from interface: PeerBehavior

The type of peer.

Specified by:

type in interface PeerBehavior

Returns:

the peer type.

type

public void type(int type)

Description copied from interface: PeerBehavior

Set the type of peer.

Specified by:

type in interface PeerBehavior

Returns:

the peer type.

errorFraction

public void errorFraction(double errorFraction)

Description copied from interface: PeerBehavior

The fraction of uploads that will contain errors.

Specified by:

errorFraction in interface PeerBehavior

Parameters:

errorFraction - fraction of file upload errors.

categoryPreference

public int categoryPreference()

Description copied from interface: PeerBehavior

Get the peers category preference.

Specified by:

categoryPreference in interface PeerBehavior

Returns:

TOP_CATEGORY, BOTTOM_CATEGORY, or RANDOM_CATEGORY

categoryPreference

public void categoryPreference(int preference)

Description copied from interface: PeerBehavior

Indicates which category of files a peer is likely to respond to. For instance setting the value to RB_TOP will focus the peer's interest to top level categories of files.

Specified by:

categoryPreference in interface PeerBehavior

responseSelector

public int responseSelector()

Description copied from interface: PeerBehavior

This determines how a peer will choose a site to download from.

Specified by:

responseSelector in interface PeerBehavior

Returns:

selector type

responseSelector

public void responseSelector(int selector)

Description copied from interface: PeerBehavior

Set the selector for how a peer will choose a download site.

Specified by:

responseSelector in interface PeerBehavior

Parameters:

selector - type

respond

public boolean respond(PeerMsgQuery msg)

Will determine if peer should respond to a query

Specified by:

respond in interface PeerBehavior

Parameters:

msg - The query message

uploadStatus

public double uploadStatus(Peer dest)

Will determine the file upload status.

Specified by:

uploadStatus in interface PeerBehavior

Parameters:

dest - The destination peer.

Returns:

The files status: GOOD_FILE or BAD_FILE.

opinion

public double opinion(Peer peer,
                      boolean authenticFile)

Will determine the value a peer should use to update it's local trust

Specified by:

opinion in interface PeerBehavior

Parameters:

peer - the peer that was downloaded from.

authenticFile - true if the file download successful.

activity

public void activity(int activity)

Initializes uptime ratio and query activity ratio for all specified peers.

Specified by:

activity in interface PeerBehavior