BrmTron Server/src/cz/brmlab/brmtron/server/ProtocolHelper.java

   1 package cz.brmlab.brmtron.server;
   2
   3 import java.util.Map;
   4 import java.util.Set;
   5
   6 public class ProtocolHelper {
   7
   8         //id --- name --- longitude --- latitude --- active\n
   9
  10         private static final int FIELD_ID = 0;
  11         private static final int FIELD_NAME = 1;
  12         private static final int FIELD_LONGITUDE = 2;
  13         private static final int FIELD_LATITUDE = 3;
  14         private static final int FIELD_ACTIVE = 4;
  15         private static final String FIELD_DELIMITER = " --- ";
  16
  17         public static Player parsePlayer(String input) {
  18                 //TODO overeni vstupu
  19                 String[] tmp = input.trim().split(FIELD_DELIMITER);
  20                 int id = Integer.parseInt(tmp[FIELD_ID]);
  21                 Player ret = new Player(id);
  22                 ret.setName(tmp[FIELD_NAME]);
  23                 ret.setCoords(Double.parseDouble(tmp[FIELD_LONGITUDE]), Double.parseDouble(tmp[FIELD_LATITUDE]));
  24                 ret.setActive(Boolean.parseBoolean(tmp[FIELD_ACTIVE]));
  25                 return ret;
  26         }
  27
  28         public static String buildPlayer(Player p) {
  29                 StringBuilder sb = new StringBuilder();
  30
  31                 sb.append(p.getId());
  32                 sb.append(FIELD_DELIMITER);
  33                 sb.append(p.getName());
  34                 sb.append(FIELD_DELIMITER);
  35                 sb.append(p.getLongitude());
  36                 sb.append(FIELD_DELIMITER);
  37                 sb.append(p.getLatitude());
  38                 sb.append(FIELD_DELIMITER);
  39                 sb.append(p.isActive());
  40                 sb.append("\n");
  41
  42                 return sb.toString();
  43         }
  44
  45
  46         /**
  47          * @param players Numbered list of players
  48          * @return String representation of each player's state
  49          */
  50         public static String getUpdate(Map<Integer, Player> players) {
  51                 StringBuilder sb = new StringBuilder();
  52                 Set<Integer> keys = players.keySet();
  53
  54                 for(int i: keys) {
  55                         sb.append(buildPlayer(players.get(i)));
  56                 }
  57
  58                 return sb.toString();
  59         }
  60 }