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1 package jp.ac.u_ryukyu.alicevnc;
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2
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3 import java.util.List;
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4
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32
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5 import jp.ac.u_ryukyu.alicevnc.AliceVNCMessage.MessageType;
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6 import alice.codesegment.CodeSegment;
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7 import alice.datasegment.CommandType;
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8 import alice.datasegment.Receiver;
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9
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10 public class ReceiveChangeRequest extends CodeSegment {
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11 private Receiver info = ids.create(CommandType.TAKE);
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12 private Receiver info1 = ids.create(CommandType.PEEK); // connection list
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13
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14 public ReceiveChangeRequest() {
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15 info.setKey("changeRequest");
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16 info1.setKey("_CLIST");
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17 }
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18
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19 @Override
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20 public void run() {
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21 AliceVNCMessage order = info.asClass(AliceVNCMessage.class);
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22
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22
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23 @SuppressWarnings("unchecked")
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24 List<String> clist = info1.asClass(List.class);
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24
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25 if (order.messageID == MessageType.ChangeRequest.getId()||
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26 order.messageID == MessageType.CurrentVNCInfo.getId()) {
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27 if (clist.contains("parent")){
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28 order.route.add(info.from);
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29 ods.put("parent", "changeRequest", order);
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30 new ReceiveChangeRequest();
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31 } else { // this node is root.
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32 order.route.add(info.from);
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24
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33 if (order.messageID == MessageType.CurrentVNCInfo.getId()) {
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34 ods.put("currentServer", order);
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35 new ReceiveChangeRequest();
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36 } else {
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37 System.out.println("coming Server change request from "+ order.name+" "+order.route.size());
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27
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38 new CheckCurrentInfo(order); // check change Server flag.
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39 }
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40 }
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41 } else if (order.messageID == MessageType.StartNegotiate.getId()||
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42 order.messageID == MessageType.StopProxy.getId()) {
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43 if (order.route.size() == 0) {
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44 if (order.messageID == MessageType.StartNegotiate.getId()){
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45 // this node send ChangeVNCRequest
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46 System.out.println("coming StartNegotiate from "+ order.name);
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30
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47
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48 // negotiate VNCServer by Viewer
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49 ods.put("vncRight", true);
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50 new NegotiateVNCServer();
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51 new ReceiveChangeRequest();
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27
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52 } else {
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53 new StopProxy();
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54 }
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55 } else {
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56 int last = order.route.size() - 1;
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57 String address = order.route.get(last);
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58 order.route.remove(last);
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59 ods.put(address, "changeRequest", order);
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60 new ReceiveChangeRequest();
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61 }
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62 }
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63 }
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64 } |
