package jadex.bdi.planlib.protocols;
/**
* A helper class that handles a receiver side goals
* of the iterated contract net protocol by delegating
* to some implementation of the corresponding interface.
*/
public class ICNPHandler implements IProposalEvaluator, IQueryNextroundInfo
{
//-------- attributes --------
/** The proposal evaluator. */
protected IProposalEvaluator proposal_evaluator;
/** The query nextround info. */
protected IQueryNextroundInfo query_nextround_info;
//-------- constructors --------
/**
* Create an ICNPHandler using the given implementations.
* @param proposal_evaluator The proposal evaluator.
* @param query_nextround_info The query nextround info.
*/
public ICNPHandler(IProposalEvaluator proposal_evaluator, IQueryNextroundInfo query_nextround_info)
{
this.proposal_evaluator = proposal_evaluator;
this.query_nextround_info = query_nextround_info;
}
//-------- IProposalEvaluator interface --------
/**
* Evaluate the given proposals and determine winning proposals.
* @param cfp The original call-for-proposal object.
* @param cfp_info Local meta information associated to the interaction.
* @param history The history of negotiation rounds.
* @param proposals The received proposals.
* @return The acceptable proposals, sorted by preference (best proposal first).
*/
public ParticipantProposal[] evaluateProposals(Object cfp, Object cfp_info, NegotiationRecord[] history, ParticipantProposal[] proposals)
{
return proposal_evaluator.evaluateProposals(cfp, cfp_info, history, proposals);
}
//-------- IQueryNextroundInfo interface --------
/**
* Collect information for next negotiation round.
* @param info The nextround info object, which might be altered.
* @param history The history of negotiation rounds.
* @param proposals The received proposals.
* @return True, if another negotiation round should be performed.
*/
public boolean queryNextroundInfo(NextroundInfo info, NegotiationRecord[] history, ParticipantProposal[] proposals)
{
return query_nextround_info.queryNextroundInfo(info, history, proposals);
}
}