source: events/src/main/java/geniusweb/actions/VotesWithValue.java@ 53

Last change on this file since 53 was 52, checked in by ruud, 21 months ago

Fixed small issues in domaineditor.

File size: 3.6 KB
RevLine 
[52]1package geniusweb.actions;
2
3import java.util.Collections;
4import java.util.Map;
5import java.util.Map.Entry;
6import java.util.Optional;
7import java.util.Set;
8import java.util.stream.Collectors;
9
10import com.fasterxml.jackson.annotation.JsonCreator;
11import com.fasterxml.jackson.annotation.JsonProperty;
12
13import geniusweb.issuevalue.Bid;
14
15/**
16 * Indicates that a party conditionally agrees with any of the
17 * {@link VoteWithValue}s provided.
18 */
19public class VotesWithValue extends AbstractAction {
20 private final Set<VoteWithValue> votes;
21
22 /**
23 *
24 * @param id party id
25 * @param votes the {@link Vote}s that the party can agree on, if the
26 * condition of the Vote holds. Every {@link Vote#getActor()}
27 * should equal the id. The sum of the values must =100.
28 */
29 @JsonCreator
30 public VotesWithValue(@JsonProperty("actor") PartyId id,
31 @JsonProperty("votes") Set<VoteWithValue> votes) {
32 super(id);
33 this.votes = votes;
34 if (votes == null)
35 throw new NullPointerException("votes must be not null");
36 for (VoteWithValue vote : votes) {
37 if (!vote.getActor().equals(id)) {
38 throw new IllegalArgumentException("All votes must come from "
39 + id + " but found " + vote);
40 }
41 }
42 if (votes.stream().map(v -> v.getValue()).reduce(0,
43 Integer::sum) != 100)
44 throw new IllegalArgumentException(
45 "Sum of the placed votes must be 100");
46 // check for duplicate Vote's, possibly with different powers
47 Map<Bid, Long> counts = votes.stream().map(vote -> vote.getBid())
48 .collect(Collectors.groupingBy(bid -> bid,
49 Collectors.counting()));
50 Optional<Entry<Bid, Long>> nonunique = counts.entrySet().stream()
51 .filter(entry -> entry.getValue() > 1).findAny();
52 if (nonunique.isPresent())
53 throw new IllegalArgumentException(
54 "Votes contains multiple Vote's for "
55 + nonunique.get().getKey());
56 }
57
58 /**
59 * Test if Votes extends other votes. Extending means that for each vote on
60 * bid B with power P in othervotes, this contains also a vote for bid B
61 * with power at most P.
62 *
63 * @param otherVotes the {@link VotesWithValue}, usually from a previous
64 * round, that this should extend.
65 * @return true iff this extends the otherVotes.
66 */
67 public boolean isExtending(VotesWithValue otherVotes) {
68 if (!otherVotes.getActor().equals(getActor()))
69 return false;
70 for (VoteWithValue vote : otherVotes.getVotes()) {
71 VoteWithValue myvote = getVote(vote.getBid());
72 if (myvote == null || myvote.getMinPower() > vote.getMinPower()
73 || myvote.getMaxPower() < vote.getMaxPower())
74 return false;
75 }
76 return true;
77 }
78
79 /**
80 *
81 * @param bid the bid that we may have a vote for
82 * @return myvote for bid, or null if no vote for that bid;
83 */
84 public VoteWithValue getVote(Bid bid) {
85 for (VoteWithValue vote : votes) {
86 if (vote.getBid().equals(bid))
87 return vote;
88 }
89 return null;
90 }
91
92 public Set<VoteWithValue> getVotes() {
93 return Collections.unmodifiableSet(votes);
94 }
95
96 @Override
97 public int hashCode() {
98 final int prime = 31;
99 int result = super.hashCode();
100 result = prime * result + ((votes == null) ? 0 : votes.hashCode());
101 return result;
102 }
103
104 @Override
105 public boolean equals(Object obj) {
106 if (this == obj)
107 return true;
108 if (!super.equals(obj))
109 return false;
110 if (getClass() != obj.getClass())
111 return false;
112 VotesWithValue other = (VotesWithValue) obj;
113 if (votes == null) {
114 if (other.votes != null)
115 return false;
116 } else if (!votes.equals(other.votes))
117 return false;
118 return true;
119 }
120
121 @Override
122 public String toString() {
123 return "VotesWithValue[" + getActor() + "," + votes + "]";
124 }
125}
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