[52] | 1 | package geniusweb.protocol.session.mopac.phase;
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| 2 |
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| 3 | import java.util.Arrays;
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| 4 | import java.util.Collections;
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| 5 | import java.util.List;
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| 6 | import java.util.Map;
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| 7 | import java.util.stream.Collectors;
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| 8 |
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| 9 | import com.fasterxml.jackson.annotation.JsonCreator;
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| 10 | import com.fasterxml.jackson.annotation.JsonProperty;
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| 11 |
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| 12 | import geniusweb.actions.Action;
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| 13 | import geniusweb.actions.EndNegotiation;
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| 14 | import geniusweb.actions.PartyId;
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| 15 | import geniusweb.actions.Votes;
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| 16 | import geniusweb.inform.Agreements;
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| 17 | import geniusweb.inform.Inform;
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| 18 | import geniusweb.inform.OptIn;
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| 19 | import geniusweb.protocol.ProtocolException;
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| 20 | import geniusweb.protocol.session.mopac.PartyStates;
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| 21 | import geniusweb.voting.CollectedVotes;
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| 22 | import geniusweb.voting.VotingEvaluator;
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| 23 |
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| 24 | public class OptInPhase extends DefaultPhase {
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| 25 |
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| 26 | /**
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| 27 | * The votes received in the {@link VotingPhase}
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| 28 | */
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| 29 | private final List<Votes> votes;
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| 30 |
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| 31 | @JsonCreator
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| 32 | protected OptInPhase(@JsonProperty("votes") List<Votes> votes,
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| 33 | @JsonProperty("partyStates") PartyStates partyStates,
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| 34 | @JsonProperty("deadline") Long deadline,
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| 35 | @JsonProperty("evaluator") VotingEvaluator evaluator) {
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| 36 | super(partyStates, deadline, evaluator);
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| 37 | this.votes = votes;
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| 38 | if (votes == null)
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| 39 | throw new IllegalArgumentException("votes must be not null");
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| 40 | }
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| 41 |
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| 42 | @Override
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| 43 | public Inform getInform() {
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| 44 | return new OptIn(votes);
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| 45 | }
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| 46 |
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| 47 | @Override
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| 48 | public Phase with(PartyId actor, Action action, long now) {
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| 49 | try {
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| 50 | checkAction(actor, action, now);
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| 51 | if (action instanceof Votes)
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| 52 | checkExtends((Votes) action);
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| 53 |
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| 54 | return new OptInPhase(votes, partyStates.with(action), deadline,
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| 55 | evaluator);
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| 56 |
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| 57 | } catch (ProtocolException e) {
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| 58 | return this.with(e);
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| 59 | }
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| 60 | }
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| 61 |
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| 62 | /**
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| 63 | * Check that this action extends previous action.
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| 64 | *
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| 65 | * @param newvotes new {@link Votes} just received
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| 66 | * @throws ProtocolException if this action does not correctly extend
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| 67 | * previous vote.
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| 68 | */
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| 69 | private void checkExtends(Votes newvotes) throws ProtocolException {
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| 70 | PartyId actor = newvotes.getActor();
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| 71 | // this actor is active so he must have voted in previous round.
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| 72 | Votes prevVotes = votes.stream().filter(v -> v.getActor().equals(actor))
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| 73 | .findFirst().get();
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| 74 | if (!(newvotes.isExtending(prevVotes)))
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| 75 | throw new ProtocolException("New votes " + newvotes
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| 76 | + " does not extend previous vote " + prevVotes, actor);
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| 77 | }
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| 78 |
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| 79 | @Override
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| 80 | public OptInPhase with(ProtocolException e) {
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| 81 | return new OptInPhase(votes, partyStates.with(e), deadline, evaluator);
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| 82 | }
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| 83 |
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| 84 | @Override
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| 85 | public OptInPhase finish() {
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| 86 | PartyStates states = partyStates.finish();
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| 87 | Map<PartyId, Votes> votesmap = states.getActions(Votes.class).stream()
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| 88 | .collect(Collectors.toMap(votes -> votes.getActor(), v -> v));
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| 89 | CollectedVotes allvotes = new CollectedVotes(votesmap,
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| 90 | states.getPowers());
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| 91 | Agreements newAgree = evaluator.create(allvotes).getAgreements();
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| 92 | if (!newAgree.getMap().isEmpty()) {
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| 93 | System.out.println("detected new agreements");
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| 94 | }
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| 95 | PartyStates finalStates = states.with(newAgree);
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| 96 |
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| 97 | return new OptInPhase(votes, finalStates, deadline, evaluator);
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| 98 | }
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| 99 |
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| 100 | @Override
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| 101 | public OfferPhase checkedNext(long newdeadline) {
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| 102 | return new OfferPhase(partyStates.flush(), newdeadline, evaluator);
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| 103 | }
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| 104 |
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| 105 | @Override
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| 106 | public List<Class<? extends Action>> getAllowedActions() {
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| 107 | return Arrays.asList(Votes.class, EndNegotiation.class);
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| 108 | }
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| 109 |
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| 110 | public List<Votes> getVotes() {
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| 111 | return Collections.unmodifiableList(votes);
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| 112 | }
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| 113 | }
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