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44 lines
1.5 KiB
44 lines
1.5 KiB
package fr.mieuxvoter.mj;
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import java.math.BigInteger;
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/**
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* Fill the missing judgments into the median grade.
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* Useful when the proposals have not received the exact same amount of votes and
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* the median grade is considered a sane default.
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*/
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public class MedianDefaultTally extends Tally implements TallyInterface {
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public MedianDefaultTally(ProposalTallyInterface[] proposalsTallies, BigInteger amountOfJudges) {
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super(proposalsTallies, amountOfJudges);
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fillWithDefaultGrade();
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}
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public MedianDefaultTally(ProposalTallyInterface[] proposalsTallies, Long amountOfJudges) {
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super(proposalsTallies, amountOfJudges);
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fillWithDefaultGrade();
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}
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public MedianDefaultTally(ProposalTallyInterface[] proposalsTallies, Integer amountOfJudges) {
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super(proposalsTallies, amountOfJudges);
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fillWithDefaultGrade();
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}
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protected void fillWithDefaultGrade() {
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int amountOfProposals = getAmountOfProposals();
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for (int i = 0 ; i < amountOfProposals ; i++) {
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ProposalTallyInterface proposal = getProposalsTallies()[i];
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ProposalTallyAnalysis analysis = new ProposalTallyAnalysis(proposal);
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Integer defaultGrade = analysis.getMedianGrade();
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BigInteger amountOfJudgments = proposal.getAmountOfJudgments();
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BigInteger missingAmount = this.amountOfJudges.subtract(amountOfJudgments);
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int missingSign = missingAmount.compareTo(BigInteger.ZERO);
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assert(0 <= missingSign); // ERROR: More judgments than judges!
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if (0 < missingSign) {
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proposal.getTally()[defaultGrade] = proposal.getTally()[defaultGrade].add(missingAmount);
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}
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}
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}
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}
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