Exemplo n.º 1
0
  public static void insertPost(Post post, String type) {
    try {
      String postId = post.getId();
      IdNameEntity idNameEntity = post.getFrom();
      String userId = idNameEntity.getId();
      String userName = idNameEntity.getName();
      String commentsCount = post.getComments() == null ? "0" : post.getComments().size() + "";
      String likeCount = post.getLikes() == null ? "0" : post.getLikes().size() + "";

      String columnFamily = COLUMN_FAMILY_FACEBOOK_POST;
      String rowKey = type;
      String superColumn = postId + "-" + userId + "-" + userName;

      Clock clock = new Clock(System.nanoTime());
      Column column = new Column();
      String columnName = commentsCount + "-" + likeCount;
      column.setName(columnName.getBytes(UTF8));
      String columnValue = post.getMessage();
      if (!StringUtils.isBlank(columnValue)) {
        column.setValue(columnValue.getBytes(UTF8));
      } else {
        column.setValue("".getBytes(UTF8));
      }
      column.setTimestamp(clock.timestamp);

      cassandra.insertSuperColumn(columnFamily, rowKey, superColumn, column);
    } catch (UnsupportedEncodingException e) {
      logger.error("[Info: encoding invalid] - [Error: {}]", e.toString());
    }
  }
Exemplo n.º 2
0
 public static ColumnOrSuperColumn getPostPopular(String type, Integer rankingPosition) {
   String rowKey = (type + "-" + rankingPosition);
   List<ColumnOrSuperColumn> cscs =
       cassandra.findColumnOrSuperColumn(COLUMN_FAMILY_FACEBOOK_POST_POPULAR, rowKey);
   if (cscs != null && !cscs.isEmpty()) {
     return cscs.get(0); // we are using "index_interval = 1", so we can get the first data
   } else {
     return null;
   }
 }
Exemplo n.º 3
0
  public static void removePost(Post post, String type) {
    String postId = post.getId();
    IdNameEntity idNameEntity = post.getFrom();
    String userId = idNameEntity.getId();
    String userName = idNameEntity.getName();

    String columnFamily = COLUMN_FAMILY_FACEBOOK_POST;
    String rowKey = type;
    String superColumn = postId + "-" + userId + "-" + userName;

    cassandra.removeSuperColumn(columnFamily, rowKey, superColumn);
  }
Exemplo n.º 4
0
  public static void insertPostPopular(Post post, String type, Integer position) {
    try {
      String postId = post.getId();
      IdNameEntity idNameEntity = post.getFrom();
      String userId = idNameEntity.getId();
      String userName = idNameEntity.getName();

      String columnFamily = COLUMN_FAMILY_FACEBOOK_POST_POPULAR;
      String rowKey = (type + "-" + position);

      Clock clock = new Clock(System.nanoTime());
      Column column = new Column();
      String columnName = (postId + "-" + userId + "-" + userName);
      column.setName(columnName.getBytes(UTF8));
      String columnValue = post.getMessage();
      column.setValue(columnValue.getBytes(UTF8));
      column.setTimestamp(clock.timestamp);

      cassandra.insertColumn(columnFamily, rowKey, column);
    } catch (UnsupportedEncodingException e) {
      logger.error("[Info: encoding invalid] - [Error: {}]", e.toString());
    }
  }
Exemplo n.º 5
0
 public static List<ColumnOrSuperColumn> getPost(String type) {
   return cassandra.findColumnOrSuperColumn(COLUMN_FAMILY_FACEBOOK_POST, type);
 }
Exemplo n.º 6
0
 public static Integer countPost(String type) {
   return cassandra.countColumnOrSuperColumn(COLUMN_FAMILY_FACEBOOK_POST, type);
 }
Exemplo n.º 7
0
  public static void removePostPopular(String type, Integer position) {
    String columnFamily = COLUMN_FAMILY_FACEBOOK_POST_POPULAR;
    String rowKey = (type + "-" + position);

    cassandra.removeColumn(columnFamily, rowKey);
  }