Output a star rating using Java backing code.

Rated.java

public class Rated {
  
  public Rated(JsonNode node) {
    starRating = node.get("rating").intValue();
  }
  
  int starRating;
  
  class Star {
    boolean active;
    int num;
  }
  
  List<Star> stars() {
    List<Star> stars = new ArrayList<Star>();
    for (int i = 1; i <= 5; i++) {
      Star star = new Star();
      star.active = starRating >= i;
      star.num = i;
      stars.add(star);
    }
    return stars;
  }
}

stars.mustache

{{#stars}}
<span class="star {{#active}}activeStar{{/active}}">{{num}}</span>
{{/stars}}