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   源码介绍

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基于DDD框架COLA应用示例

public class ATAMetricItem extends MetricItem { private static Logger logger = LoggerFactory.getLogger(ATAMetricItem.class); private String authorId;//作者  private String title;//文章标题  private String url;//文章链接  private long thumbsUpCount;//点赞数  private long hitCount;//点击数  private long commentCount;//评论数  private long favoriteCount;//收藏数   private static int HIT_STEP_SIZE = 100; private static int THUMB_UPS_STEP_SIZE = 20; private static int FAVORITE_STEP_SIZE = 15; private static int COMMENT_STEP_SIZE = 3; private static double STEP_SCORE = 0.25; private static double BASIC_SCORE = 0.5; public ATAMetricItem(){
    } public ATAMetricItem(String title, long thumbsUpCount, long hitCount, long favoriteCount, long commentCount) { this.title = title; this.thumbsUpCount = thumbsUpCount; this.hitCount = hitCount; this.favoriteCount = favoriteCount; this.commentCount = commentCount;
    } public static ATAMetricItem valueOf(String json){ return JSON.parseObject(json, ATAMetricItem.class);
    } @Override  public double calculateScore() { logger.debug("calculate score for : "  this); double score = BASIC_SCORE; score = addScoreByHitCount(score); score = addScoreByThumbsupCount(score); score = addScoreByFavoriteCount(score); score = addScoreByCommentCount(score); logger.debug("calculated score is : "  score); return score;
    } private double addScoreByHitCount(double score) { for(int counter = HIT_STEP_SIZE; counter <= hitCount; counter = counter  HIT_STEP_SIZE){
            score = score STEP_SCORE;
        } return score;
    } private double addScoreByThumbsupCount(double score){ for(int counter = THUMB_UPS_STEP_SIZE; counter <= thumbsUpCount; counter = counter  THUMB_UPS_STEP_SIZE){
            score = score STEP_SCORE;
        } return score;
    } private double addScoreByFavoriteCount(double score){ for(int counter = FAVORITE_STEP_SIZE; counter <= favoriteCount; counter = counter  FAVORITE_STEP_SIZE){
            score = score STEP_SCORE;
        } return score;
    } private double addScoreByCommentCount(double score){ for(int counter = COMMENT_STEP_SIZE; counter <= commentCount; counter = counter  COMMENT_STEP_SIZE){
            score = score STEP_SCORE;
        } return score;
    }
}