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51 lines
1.8 KiB
51 lines
1.8 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 grade defined by `getDefaultGrade()`.
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* This is an abstract class to dry code between static default grade and median default grade.
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*/
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abstract public class DefaultGradeTally extends Tally implements TallyInterface {
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/**
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* Override this to choose the default grade for a given proposal.
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*/
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abstract protected Integer getDefaultGradeForProposal(ProposalTallyInterface proposalTally);
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// <domi41> /me is confused with why we need constructors in an abstract class?
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public DefaultGradeTally(TallyInterface tally) {
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super(tally.getProposalsTallies(), tally.getAmountOfJudges());
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}
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public DefaultGradeTally(ProposalTallyInterface[] proposalsTallies, Integer amountOfJudges) {
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super(proposalsTallies, amountOfJudges);
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}
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public DefaultGradeTally(ProposalTallyInterface[] proposalsTallies, Long amountOfJudges) {
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super(proposalsTallies, amountOfJudges);
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}
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public DefaultGradeTally(ProposalTallyInterface[] proposalsTallies, BigInteger amountOfJudges) {
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super(proposalsTallies, amountOfJudges);
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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 proposalTally = getProposalsTallies()[i];
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Integer defaultGrade = getDefaultGradeForProposal(proposalTally);
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BigInteger amountOfJudgments = proposalTally.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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BigInteger[] rawTally = proposalTally.getTally();
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rawTally[defaultGrade] = rawTally[defaultGrade].add(missingAmount);
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}
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}
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}
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}
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