示例#1
0
 public static double distance(double lat1, double lon1, double lat2, double lon2) {
   double theta = lon1 - lon2;
   double dist =
       Math.sin(deg2rad(lat1)) * Math.sin(deg2rad(lat2))
           + Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) * Math.cos(deg2rad(theta));
   dist = Math.acos(dist);
   dist = rad2deg(dist);
   dist = dist * 60 * 1.85315962;
   return (dist);
 }
示例#2
0
文件: Ads.java 项目: habib123/SEBA
  public static void list(
      String search, int category, Integer size, Integer page, int firstPage, int lastPage) {
    List<Ad> ads = null;

    List<Category> cats = Category.find("categorytype_id=?1", "1").fetch();

    EntityManager entityManager = play.db.jpa.JPA.em();
    List<BigInteger> bCounts =
        entityManager
            .createNativeQuery(
                "select count(*) as maxCount from Ad as a group by category_id order by maxCount")
            .getResultList();
    int min = bCounts.get(0).intValue();
    int max = bCounts.get(bCounts.size() - 1).intValue();
    bCounts =
        entityManager
            .createNativeQuery(
                "select count(*) as maxCount from Ad as a group by category_id order by category_id ")
            .getResultList();
    List<String> fonts = new ArrayList<String>();
    for (int i = 0; i < bCounts.size(); i++) {
      BigInteger count = bCounts.get(i);
      int x = Ads.getFontSize(count.intValue(), min, max);
      fonts.add(String.valueOf(x));
    }

    int pagesCount = 0;

    page = page != null ? page : 1;
    if (search.trim().length() == 0) {
      Long l = null;
      if (category == 0) {

        ads = Ad.find("order by createDate desc").fetch(page, size);
        l = Ad.count();
      } else {

        ads = Ad.find(" category_id=?1 order by createDate desc", category).fetch(page, size);
        l = Ad.count(" category_id=?1 ", category);
      }

      Long l2 = (l / 10);
      if ((l % 10) > 0) l2 = (long) (Math.floor(l2) + 1);
      pagesCount = Integer.valueOf(l2.intValue());

    } else {
      search = search.toLowerCase();
      Long l = null;
      if (category == 0) {
        ads =
            Ad.find(
                    "(lower(headline) like ?1 OR lower(description) like ?2)",
                    "%" + search + "%",
                    "%" + search + "%")
                .fetch(page, size);
        l =
            Ad.count(
                "(lower(headline) like ?1 OR lower(description) like ?2)",
                "%" + search + "%",
                "%" + search + "%");
      } else {
        ads =
            Ad.find(
                    " category_id=?1 and (lower(headline) like ?2 OR lower(description) like ?3)",
                    category,
                    "%" + search + "%",
                    "%" + search + "%")
                .fetch(page, size);
        l =
            Ad.count(
                "category_id=?1 and (lower(headline) like ?2 OR lower(description) like ?3)",
                category,
                "%" + search + "%",
                "%" + search + "%");
      }

      Long l2 = (l / 10);
      if ((l % 10) > 0) l2 = (long) (Math.floor(l2) + 1);
      pagesCount = Integer.valueOf(l2.intValue());
    }

    if ((lastPage - page) <= 2) {
      firstPage = page - 2;
      lastPage = page + 7;
      if (lastPage > pagesCount) lastPage = pagesCount;

    } else if ((page - firstPage) <= 2) {
      firstPage = page - 7;
      lastPage = page + 2;
      if (firstPage < 1) {
        firstPage = 1;
        lastPage = 10;
      }
    }

    if (lastPage > pagesCount) lastPage = pagesCount;

    render(ads, search, size, page, pagesCount, firstPage, lastPage, cats, fonts);
  }