genius.core.protocol

Class AlternatingMajorityConsensusProtocol

java.lang.Object

genius.core.protocol.DefaultMultilateralProtocol

genius.core.protocol.AlternatingMultipleOffersProtocol

genius.core.protocol.AlternatingMajorityConsensusProtocol

All Implemented Interfaces:

MultilateralProtocol

public class AlternatingMajorityConsensusProtocol
extends AlternatingMultipleOffersProtocol

Implementation of an alternating offer protocol using majority voting. This is essentially equal to the AlternatingMultipleOffersProtocol but now an offer is accepted if the majority (instead of all) accept.

Protocol:

 Round 1 (offers): Each agent makes an offer
 Round 2 (voting): Each agent votes for each offer on the table
 
 The offer that is supported by the most parties, will stay on the table.
 If a new offer has more supporting parties, it overwrites the old offer.
 This protocol always has some agreement.
 
 When deadline reached, the most recent agreement will be considered the final agreement.
 

Author:

David Festen, Reyhan, W.Pasman removed all code except acceptedOffer and extend existing AMOP

Field Summary

Fields inherited from class genius.core.protocol.DefaultMultilateralProtocol

isAborted

Constructor Summary

Constructors

Constructor and Description
AlternatingMajorityConsensusProtocol()

Method Summary

Modifier and Type	Method and Description
protected Offer	acceptedOffer(Round votingRound, Round offerRound) returns the first offer with more support than the current one, or null if no such offer.
boolean	isFinished(Session session, java.util.List<NegotiationParty> parties) Check if the protocol is done or still busy.

Methods inherited from class genius.core.protocol.AlternatingMultipleOffersProtocol

allActionsAreOffers, createRound, createTurn, createTurn, getActionListeners, getCurrentAgreement, getNumberOfAgreeingParties, getRoundStructure, isVotingRound, nrOfVotes

Methods inherited from class genius.core.protocol.DefaultMultilateralProtocol

afterSession, applyAction, beforeSession, checkOffer, endNegotiation, endNegotiation, exclude, includeOnly, listenToAll, listenToNone

Methods inherited from class java.lang.Object

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

Constructor Detail

AlternatingMajorityConsensusProtocol

public AlternatingMajorityConsensusProtocol()

Method Detail

isFinished

public boolean isFinished(Session session,
                          java.util.List<NegotiationParty> parties)

Description copied from interface: MultilateralProtocol

Check if the protocol is done or still busy. If this method returns true, the SessionManager will not start a new Round after the current one. It will however finish all the turns described in the MultilateralProtocol.getRoundStructure(java.util.List, genius.core.session.Session) method.

Specified by:

isFinished in interface MultilateralProtocol

Overrides:

isFinished in class AlternatingMultipleOffersProtocol

Parameters:

session - the current state of this session

parties - all the parties involved in the negotiation

Returns:

true if the protocol is finished

acceptedOffer

protected Offer acceptedOffer(Round votingRound,
                              Round offerRound)

returns the first offer with more support than the current one, or null if no such offer.

Overrides:

acceptedOffer in class AlternatingMultipleOffersProtocol

Parameters:

votingRound - the round with the voting (expected number of turns is agent# * agent#)

offerRound - the round with the offers (expected number of turns is agent#)

Returns:

The best offer on the table