[30] | 1 | package geniusweb.inform;
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| 2 |
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| 3 | import java.util.Collections;
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| 4 | import java.util.List;
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| 5 | import java.util.Map;
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| 6 | import java.util.Map.Entry;
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| 7 | import java.util.Optional;
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| 8 | import java.util.stream.Collectors;
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| 9 |
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| 10 | import com.fasterxml.jackson.annotation.JsonCreator;
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| 11 | import com.fasterxml.jackson.annotation.JsonProperty;
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| 12 |
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| 13 | import geniusweb.actions.PartyId;
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| 14 | import geniusweb.actions.Votes;
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| 15 |
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| 16 | /**
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| 17 | * Informs party that it's time to Opt-in.
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| 18 | */
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| 19 | public class OptIn implements Inform {
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| 20 |
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| 21 | private final List<Votes> votes;
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| 22 |
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| 23 | /**
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| 24 | * @param votes a list of votes. There may be only one votes per party.
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| 25 | */
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| 26 | @JsonCreator
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| 27 | public OptIn(@JsonProperty("votes") List<Votes> votes) {
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| 28 | this.votes = votes;
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| 29 |
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| 30 | Map<PartyId, Long> counts = votes.stream().map(vote -> vote.getActor())
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| 31 | .collect(Collectors.groupingBy(actor -> actor,
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| 32 | Collectors.counting()));
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| 33 | Optional<Entry<PartyId, Long>> nonunique = counts.entrySet().stream()
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| 34 | .filter(entry -> entry.getValue() > 1).findAny();
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| 35 | if (nonunique.isPresent())
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| 36 | throw new IllegalArgumentException(
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| 37 | "OptIn contains multiple Votes for party "
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| 38 | + nonunique.get().getKey());
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| 39 |
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| 40 | }
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| 41 |
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| 42 | /**
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| 43 | * @return list of votes that can be opted in to
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| 44 | */
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| 45 | public List<Votes> getVotes() {
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| 46 | return Collections.unmodifiableList(votes);
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| 47 | }
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| 48 |
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| 49 | @Override
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| 50 | public int hashCode() {
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| 51 | final int prime = 31;
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| 52 | int result = 1;
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| 53 | result = prime * result + ((votes == null) ? 0 : votes.hashCode());
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| 54 | return result;
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| 55 | }
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| 56 |
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| 57 | @Override
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| 58 | public boolean equals(Object obj) {
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| 59 | if (this == obj)
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| 60 | return true;
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| 61 | if (obj == null)
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| 62 | return false;
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| 63 | if (getClass() != obj.getClass())
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| 64 | return false;
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| 65 | OptIn other = (OptIn) obj;
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| 66 | if (votes == null) {
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| 67 | if (other.votes != null)
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| 68 | return false;
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| 69 | } else if (!votes.equals(other.votes))
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| 70 | return false;
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| 71 | return true;
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| 72 | }
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| 73 |
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| 74 | @Override
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| 75 | public String toString() {
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| 76 | return "OptIn[" + votes + "]";
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| 77 | }
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| 78 |
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| 79 | }
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