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1 package rep;
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2
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3 import java.util.HashMap;
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4 import java.util.Map.Entry;
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5
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6 public class RoutingTable {
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7
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8 HashMap<Integer,Forwarder> sessionManagers =new HashMap<Integer,Forwarder>();
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9 // we don't need this, but we keep it because it is easy.
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10 // editor can be reached using this routing table.
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11 HashMap<Integer,Forwarder> sessionTable =new HashMap<Integer,Forwarder>();
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12 // session may have multiple forward, if so we have a session
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13 // here. So we don't have to keep multiple session, just keep
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14 // one.
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15
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16 public void add(Forwarder forwarder, int smid, int sid) {
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17 if (smid>0) sessionManagers.put(smid, forwarder) ;
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18 if (sid>0) sessionTable.put(sid, forwarder) ;
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19 }
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20
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21 public void remove(Forwarder f) {
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22 for(Entry<Integer, Forwarder> entry:sessionManagers.entrySet()) {
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23 if (entry.getValue()==f) sessionManagers.remove(entry.getKey());
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24 }
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25 for(Entry<Integer, Forwarder> entry:sessionTable.entrySet()) {
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26 if (entry.getValue()==f) sessionTable.remove(entry.getKey());
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27 }
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28 }
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29
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30 public void removeSession(int sid) {
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31 sessionTable.remove(sid);
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32 }
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33
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34 public void removeManager(int smid) {
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35 sessionManagers.remove(smid);
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36 }
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37
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38 public Forwarder toSession(int sid) {
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39 return sessionTable.get(sid);
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40 }
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41
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42 public Forwarder toSessionManager(int eid) {
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43 return sessionManagers.get(eid);
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44 }
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45
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46 }
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