source: src/main/java/agents/anac/y2015/Atlas3/Atlas3.java

package agents.anac.y2015.Atlas3;

import java.util.ArrayList;
import java.util.List;

import agents.anac.y2015.Atlas3.etc.bidSearch;
import agents.anac.y2015.Atlas3.etc.negotiatingInfo;
import agents.anac.y2015.Atlas3.etc.strategy;
import genius.core.AgentID;
import genius.core.Bid;
import genius.core.actions.Accept;
import genius.core.actions.Action;
import genius.core.actions.EndNegotiation;
import genius.core.actions.Inform;
import genius.core.actions.Offer;
import genius.core.parties.AbstractNegotiationParty;
import genius.core.parties.NegotiationInfo;
import genius.core.utility.AdditiveUtilitySpace;

/**
 * This is your negotiation party.
 */
public class Atlas3 extends AbstractNegotiationParty {
        private negotiatingInfo negotiatingInfo; // 交渉情報
        private bidSearch bidSearch; // Bid探索
        private strategy strategy; // 交渉戦略
        private double rv; // 留保価格
        private Bid offeredBid = null; // 提案された合意案候補
        private int supporter_num = 0; // 支持者数
        private int CList_index = 0; // CListのインデックス：最終提案フェーズにおける遡行を行うために利用(ConcessionList)

        // デバッグ用
        public static boolean isPrinting = false; // メッセージを表示する

        @Override
        public void init(NegotiationInfo info) {
                super.init(info);

                if (isPrinting) {
                        System.out.println("*** Atlas3 v1.0 ***");
                }

                negotiatingInfo = new negotiatingInfo(
                                (AdditiveUtilitySpace) utilitySpace);
                try {
                        bidSearch = new bidSearch((AdditiveUtilitySpace) utilitySpace,
                                        negotiatingInfo);
                } catch (Exception e) {
                        throw new RuntimeException("init failed:" + e, e);
                }
                strategy = new strategy((AdditiveUtilitySpace) utilitySpace,
                                negotiatingInfo);
                rv = utilitySpace.getReservationValue();
        }

        /**
         * Each round this method gets called and ask you to accept or offer. The
         * first party in the first round is a bit different, it can only propose an
         * offer.
         *
         * @param validActions
         *            Either a list containing both accept and offer or only offer.
         * @return The chosen action.
         */
        @SuppressWarnings("rawtypes")
        @Override
        // Actionの選択
        public Action chooseAction(List<Class<? extends Action>> validActions) {
                double time = timeline.getTime(); // 現在の交渉時刻を取得
                negotiatingInfo.updateTimeScale(time); // 自身の手番が回ってくる時間間隔を記録

                // 最終提案フェーズにおけるアクション
                ArrayList<Bid> CList;
                CList = negotiatingInfo.getPBList();
                if (time > 1.0 - negotiatingInfo.getTimeScale() * (CList.size() + 1)) {
                        try {
                                return chooseFinalAction(offeredBid, CList);
                        } catch (Exception e) {
                                System.out.println(
                                                "最終提案フェーズにおけるActionの選択に失敗しました");
                                e.printStackTrace();
                        }
                }

                // Accept
                if (validActions.contains(Accept.class)
                                && strategy.selectAccept(offeredBid, time)) {
                        return new Accept(getPartyId(), offeredBid);
                }

                // EndNegotiation
                if (strategy.selectEndNegotiation(time)) {
                        return new EndNegotiation(getPartyId());
                }

                // Offer
                return OfferAction();
        }

        public Action chooseFinalAction(Bid offeredBid, ArrayList<Bid> CList)
                        throws Exception {
                double offeredBid_util = 0;
                if (offeredBid != null) {
                        offeredBid_util = utilitySpace.getUtility(offeredBid);
                }
                if (CList_index >= CList.size()) {
                        if (offeredBid_util >= rv) {
                                return new Accept(getPartyId(), offeredBid);
                        } // 遡行を行っても合意が失敗する場合，Acceptする
                        else {
                                return OfferAction();
                        }
                }

                // CListの遡行
                Bid CBid = CList.get(CList_index);
                double CBid_util = utilitySpace.getUtility(CBid);
                if (CBid_util > offeredBid_util && CBid_util > rv) {
                        CList_index++;
                        negotiatingInfo.updateMyBidHistory(CBid);
                        return new Offer(getPartyId(), CBid);
                } else if (offeredBid_util > rv) {
                        return new Accept(getPartyId(), offeredBid);
                }

                return OfferAction();
        }

        public Action OfferAction() {
                Bid offerBid = bidSearch.getBid(generateRandomBid(),
                                strategy.getThreshold(timeline.getTime()));
                negotiatingInfo.updateMyBidHistory(offerBid);
                return new Offer(getPartyId(), offerBid);
        }

        /**
         * All offers proposed by the other parties will be received as a message.
         * You can use this information to your advantage, for example to predict
         * their utility.
         *
         * @param sender
         *            The party that did the action.
         * @param action
         *            The action that party did.
         */
        @Override
        // 自身以外の交渉参加者のActionを受信
        public void receiveMessage(AgentID sender, Action action) {
                super.receiveMessage(sender, action);
                // Here you can listen to other parties' messages
                if (isPrinting) {
                        System.out.println("Sender:" + sender + ", Action:" + action);
                }

                if (action != null) {
                        if (action instanceof Inform
                                        && ((Inform) action).getName() == "NumberOfAgents"
                                        && ((Inform) action).getValue() instanceof Integer) {
                                Integer opponentsNum = (Integer) ((Inform) action).getValue();
                                negotiatingInfo.updateOpponentsNum(opponentsNum);
                                if (isPrinting) {
                                        System.out.println("NumberofNegotiator:"
                                                        + negotiatingInfo.getNegotiatorNum());
                                }
                        } else if (action instanceof Accept) {
                                if (!negotiatingInfo.getOpponents().contains(sender)) {
                                        negotiatingInfo.initOpponent(sender);
                                } // 初出の交渉者は初期化
                                supporter_num++;
                        } else if (action instanceof Offer) {
                                if (!negotiatingInfo.getOpponents().contains(sender)) {
                                        negotiatingInfo.initOpponent(sender);
                                } // 初出の交渉者は初期化
                                supporter_num = 1; // supporterをリセット
                                offeredBid = ((Offer) action).getBid(); // 提案された合意案候補
                                try {
                                        negotiatingInfo.updateInfo(sender, offeredBid);
                                } // 交渉情報を更新
                                catch (Exception e) {
                                        System.out.println(
                                                        "交渉情報の更新に失敗しました");
                                        e.printStackTrace();
                                }
                        } else if (action instanceof EndNegotiation) {
                        }

                        // 自身以外が賛成している合意案候補を記録（自身以外のエージェントを1つの交渉者とみなす．そもそも自身以外のエージェントが二人以上非協力であれば，自身の選択に関わらず合意は不可能である）
                        if (supporter_num == negotiatingInfo.getNegotiatorNum() - 1) {
                                if (offeredBid != null) {
                                        try {
                                                negotiatingInfo.updatePBList(offeredBid);
                                        } catch (Exception e) {
                                                System.out.println(
                                                                "PBListの更新に失敗しました"); // PopularBidHistoryを更新
                                                e.printStackTrace();
                                        }
                                }
                        }
                }
        }

        @Override
        public String getDescription() {
                return "ANAC2015";
        }

}