io.github.oliviercailloux.grade.CriterionGradeWeight Maven / Gradle / Ivy

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package io.github.oliviercailloux.grade;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.MoreObjects;
import io.github.oliviercailloux.grade.WeightingGrade.WeightedGrade;
import jakarta.json.bind.annotation.JsonbCreator;
import jakarta.json.bind.annotation.JsonbProperty;
import jakarta.json.bind.annotation.JsonbPropertyOrder;
import java.util.Objects;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@JsonbPropertyOrder({"criterion", "grade", "weight"})
public class CriterionGradeWeight {
  @SuppressWarnings("unused")
  private static final Logger LOGGER = LoggerFactory.getLogger(CriterionGradeWeight.class);

  @JsonbCreator
  public static CriterionGradeWeight from(@JsonbProperty("criterion") Criterion criterion,
      @JsonbProperty("grade") IGrade grade, @JsonbProperty("weight") double weight) {
    return new CriterionGradeWeight(criterion, grade, weight);
  }

  public static CriterionGradeWeight from(Criterion criterion, WeightedGrade weightedGrade) {
    return new CriterionGradeWeight(criterion, weightedGrade.getGrade(), weightedGrade.getWeight());
  }

  private final Criterion criterion;
  private final IGrade grade;
  private final double weight;

  private CriterionGradeWeight(Criterion criterion, IGrade grade, double weight) {
    this.criterion = checkNotNull(criterion);
    this.grade = checkNotNull(grade, criterion);
    this.weight = checkNotNull(weight, criterion);
    LOGGER.debug("Built {}, {}, {}.", criterion, grade, weight);
  }

  public Criterion getCriterion() {
    return criterion;
  }

  public IGrade getGrade() {
    return grade;
  }

  public double getWeight() {
    return weight;
  }

  @Override
  public boolean equals(Object o2) {
    if (!(o2 instanceof CriterionGradeWeight)) {
      return false;
    }
    final CriterionGradeWeight c2 = (CriterionGradeWeight) o2;
    return criterion.equals(c2.criterion) && grade.equals(c2.grade) && weight == c2.weight;
  }

  @Override
  public int hashCode() {
    return Objects.hash(criterion, grade, weight);
  }

  @Override
  public String toString() {
    return MoreObjects.toStringHelper(this).add("criterion", criterion).add("grade", grade)
        .add("weight", weight).toString();
  }
}