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

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package io.github.oliviercailloux.grade;

import static com.google.common.base.Verify.verify;

import io.github.oliviercailloux.git.filter.GitHistorySimple;
import io.github.oliviercailloux.gitjfs.GitPathRootSha;

public class GitFsGraderUsingLast implements GitFsGrader {
  public static  GitFsGraderUsingLast using(PathGrader g) {
    return new GitFsGraderUsingLast<>(g);
  }

  private final PathGrader g;

  private GitFsGraderUsingLast(PathGrader g) {
    this.g = g;
  }

  @Override
  public MarksTree grade(GitHistorySimple data) throws X {
    verify(!data.graph().nodes().isEmpty());

    final GitPathRootSha leaf = ByTimeGrader.last(data);
    return g.grade(leaf);
  }

  @Override
  public GradeAggregator getAggregator() {
    return g.getAggregator();
  }
}