[44] | 1 | package geniusweb.boa;
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| 2 |
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| 3 | import java.lang.reflect.Parameter;
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| 4 | import java.util.ArrayList;
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| 5 | import java.util.Collections;
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| 6 | import java.util.HashMap;
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| 7 | import java.util.List;
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| 8 | import java.util.Map;
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| 9 |
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| 10 | import geniusweb.actions.Action;
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| 11 | import geniusweb.actions.Offer;
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| 12 | import geniusweb.actions.PartyId;
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| 13 | import geniusweb.boa.acceptancestrategy.AcceptanceStrategy;
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| 14 | import geniusweb.boa.biddingstrategy.BiddingStrategy;
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| 15 | import geniusweb.inform.Settings;
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| 16 | import geniusweb.opponentmodel.OpponentModel;
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| 17 | import geniusweb.profile.Profile;
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| 18 | import geniusweb.profile.utilityspace.LinearAdditive;
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| 19 | import geniusweb.progress.Progress;
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| 20 | import geniusweb.progress.ProgressRounds;
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| 21 | import tudelft.utilities.logging.Reporter;
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| 22 |
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| 23 | /**
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| 24 | * Stores the current state of the negotiation for a {@link BoaParty}, including
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| 25 | * the state of the opponent models. immutable.
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| 26 | *
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| 27 | */
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| 28 | public class BoaState {
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| 29 | private final Settings settings;
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| 30 | private final Profile profile;
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| 31 | private final Progress progress;
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| 32 | private final Class<? extends OpponentModel> opponentModelClass;
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| 33 | private final Map<PartyId, OpponentModel> opponentModels;
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| 34 | private final List<Action> actionHistory;
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| 35 | private final Reporter reporter;
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| 36 |
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| 37 | /**
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| 38 | * Initial state. Update using with(settings).
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| 39 | *
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| 40 | * @param reporter the {@link Reporter} to use for logging
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| 41 | */
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| 42 | public BoaState(Reporter reporter) {
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| 43 | this(null, null, null, null, Collections.emptyList(),
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| 44 | Collections.emptyMap(), reporter);
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| 45 | if (reporter == null) {
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| 46 | throw new NullPointerException("reporter must be not null");
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| 47 | }
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| 48 | }
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| 49 |
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| 50 | /**
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| 51 | * Internal constructor. Use
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| 52 | * {@link #with(Settings, BiddingStrategy, AcceptanceStrategy, Class, Reporter)}
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| 53 | *
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| 54 | * @param settings the negoi {@link Settings}
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| 55 | * @param profile the {@link Profile} to be used. BOA only supports
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| 56 | * {@link LinearAdditive} so this can be assumed to be
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| 57 | * {@link LinearAdditive}.
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| 58 | * @param progr the {@link Progress}
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| 59 | * @param bidstrat the {@link BiddingStrategy}
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| 60 | * @param acceptstrat the {@link AcceptanceStrategy}
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| 61 | * @param omClass the class of the {@link OpponentModel}
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| 62 | * @param actionHistory list of {@link Action}s that have been done in the
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| 63 | * negotiatino (by us and others), first action is the
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| 64 | * oldest.
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| 65 | * @param oppMods a map of {@link OpponentModel}s, one for each
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| 66 | * {@link PartyId} encountered in the negotiation
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| 67 | * @param reporter the {@link Reporter} that can be used to log
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| 68 | * messages. Should equal {@link BoaParty}'s reporter
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| 69 | */
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| 70 | private BoaState(Settings settings, Profile profile, Progress progr,
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| 71 | Class<? extends OpponentModel> omClass, List<Action> actionHistory,
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| 72 | Map<PartyId, OpponentModel> oppMods, Reporter reporter) {
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| 73 | this.settings = settings;
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| 74 | this.profile = profile;
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| 75 | this.progress = progr;
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| 76 | this.opponentModelClass = omClass;
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| 77 | this.actionHistory = actionHistory;
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| 78 | this.opponentModels = oppMods;
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| 79 | this.reporter = reporter;
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| 80 | }
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| 81 |
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| 82 | /**
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| 83 | * This should be the first update call used.
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| 84 | *
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| 85 | * @param newsettings the negoi {@link Settings}
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| 86 | * @param omClass the class of the {@link OpponentModel}
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| 87 | * @return initialized BoaState
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| 88 | */
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| 89 | public BoaState with(Settings newsettings,
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| 90 | Class<? extends OpponentModel> omClass) {
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| 91 | if (settings != null)
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| 92 | throw new IllegalStateException("settings already set");
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| 93 | if (newsettings == null || omClass == null || reporter == null)
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| 94 | throw new NullPointerException(
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| 95 | "settings, reporter, omClass and oModels must be not null");
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| 96 | return new BoaState(newsettings, null, newsettings.getProgress(),
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| 97 | omClass, actionHistory, new HashMap<PartyId, OpponentModel>(),
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| 98 | reporter);
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| 99 | }
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| 100 |
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| 101 | /**
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| 102 | * @param newprofile a new profile to be used, replaces old profile.
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| 103 | * {@link LinearAdditive} profile (BOA does not support
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| 104 | * other types)
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| 105 | * @return new {@link BoaState}
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| 106 | */
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| 107 | public BoaState with(Profile newprofile) {
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| 108 | return new BoaState(settings, newprofile, progress, opponentModelClass,
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| 109 | actionHistory, opponentModels, reporter);
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| 110 |
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| 111 | }
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| 112 |
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| 113 | /**
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| 114 | *
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| 115 | * @return the settings for this negotiation, includes my {@link PartyId},
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| 116 | * {@link Parameter}, {@link Profile} etc.
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| 117 | */
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| 118 | public Settings getSettings() {
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| 119 | return settings;
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| 120 | }
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| 121 |
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| 122 | /**
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| 123 | *
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| 124 | * @return the {@link Profile} as fetched from the profiles server, or null
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| 125 | * if no profile was received yet. BOA only supports
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| 126 | * {@link LinearAdditive} so this can be assumed to be
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| 127 | * {@link LinearAdditive}.
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| 128 | */
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| 129 | public Profile getProfile() {
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| 130 | return profile;
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| 131 | }
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| 132 |
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| 133 | /**
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| 134 | *
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| 135 | * @param action the action that was done by some participant (possibly us).
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| 136 | * @return new BoaState that includes action.getBid as last bid (if action
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| 137 | * contains a bid), and with updated opponentmodel of that
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| 138 | * participant.
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| 139 | * @throws InstantiationFailedException if one of provided classes can not
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| 140 | * be instantiated.
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| 141 | */
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| 142 | public BoaState with(Action action) throws InstantiationFailedException {
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| 143 | List<Action> newactions = new ArrayList<Action>(actionHistory);
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| 144 | newactions.add(action);
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| 145 | Progress newprogress = progress;
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| 146 | Map<PartyId, OpponentModel> newmodels = opponentModels;
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| 147 |
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| 148 | if (action.getActor().equals(settings.getID())) {
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| 149 | // ourside, just advance progress
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| 150 | if (progress instanceof ProgressRounds) {
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| 151 | // bit hacky, maybe we should wait
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| 152 | newprogress = ((ProgressRounds) progress).advance();
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| 153 | }
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| 154 | } else {
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| 155 | // not ourselves, update the OpponentModel
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| 156 | newmodels = updateModels(action);
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| 157 | }
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| 158 | return new BoaState(settings, profile, newprogress, opponentModelClass,
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| 159 | newactions, newmodels, reporter);
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| 160 | }
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| 161 |
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| 162 | /**
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| 163 | * @return the current {@link Progress}
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| 164 | */
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| 165 | public Progress getProgress() {
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| 166 | return progress;
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| 167 | }
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| 168 |
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| 169 | /**
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| 170 | * @return list of actions done so far, oldest action first
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| 171 | */
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| 172 | public List<Action> getActionHistory() {
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| 173 | return Collections.unmodifiableList(actionHistory);
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| 174 | }
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| 175 |
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| 176 | /**
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| 177 | *
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| 178 | * @return the Reporter (same as the BoaParty's reporter)
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| 179 | */
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| 180 | public Reporter getReporter() {
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| 181 | return reporter;
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| 182 | }
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| 183 |
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| 184 | /**
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| 185 | * @param action
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| 186 | * @return the map with the opponentmodels, with the model for the party
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| 187 | * that did the action updated.
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| 188 | * @throws InstantiationFailedException
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| 189 | */
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| 190 | private Map<PartyId, OpponentModel> updateModels(Action action)
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| 191 | throws InstantiationFailedException {
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| 192 | PartyId actor = action.getActor();
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| 193 | Map<PartyId, OpponentModel> updated = extendedOpponentModels(actor);
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| 194 | updated.put(actor, updated.get(actor).with(action, progress));
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| 195 | return updated;
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| 196 | }
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| 197 |
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| 198 | /**
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| 199 | * Get the current opponent model, extended with newparty if there is no
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| 200 | * model yet for newparty.
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| 201 | *
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| 202 | * @param newparty a possibly new party
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| 203 | * @return a (possibly new) opponentModels map
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| 204 | * @throws InstantiationException
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| 205 | * @throws IllegalAccessException
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| 206 | * @throws InstantiationFailedException
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| 207 | */
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| 208 | private Map<PartyId, OpponentModel> extendedOpponentModels(PartyId newparty)
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| 209 | throws InstantiationFailedException {
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| 210 | // check if this is new party
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| 211 | if (opponentModels.containsKey(newparty))
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| 212 | return opponentModels;
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| 213 |
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| 214 | Map<PartyId, OpponentModel> newmodels = new HashMap<>(opponentModels);
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| 215 | OpponentModel newmodel;
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| 216 | try {
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| 217 | newmodel = opponentModelClass.newInstance()
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| 218 | .with(settings.getParameters())
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| 219 | .with(profile.getDomain(), profile.getReservationBid());
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| 220 | } catch (Exception e) {
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| 221 | throw new InstantiationFailedException(
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| 222 | "Failed to instantiate " + opponentModelClass, e);
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| 223 | }
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| 224 | newmodels.put(newparty, newmodel);
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| 225 | return newmodels;
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| 226 | }
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| 227 |
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| 228 | /**
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| 229 | *
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| 230 | * @return last received Offer, or null if no offer was done.
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| 231 | */
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| 232 | public Offer getLastReceivedOffer() {
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| 233 | for (int i = actionHistory.size() - 1; i >= 0; i--) {
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| 234 | Action act = actionHistory.get(i);
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| 235 | if (act instanceof Offer)
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| 236 | return (Offer) act;
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| 237 | }
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| 238 | return null;
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| 239 | }
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| 240 |
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| 241 | }
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