Mercurial > hg > RemoteEditor > REPSessionManager
annotate rep/handler/Forwarder.java @ 467:87ae0424a62a
minor fix
author | one |
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date | Mon, 11 Oct 2010 12:54:55 +0900 |
parents | c83af820eb62 |
children | 6d7e284f22dc |
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REP Session Manager (Java version)
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1 package rep.handler; |
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2 |
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3 import java.io.IOException; |
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4 |
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5 import rep.PacketSet; |
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6 import rep.REP; |
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7 import rep.REPCommand; |
386 | 8 import rep.Session; |
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9 import rep.SessionManager; |
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10 import rep.channel.REPLogger; |
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11 import rep.channel.REPSelectionKey; |
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12 import rep.channel.REPSocketChannel; |
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13 |
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14 /** |
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15 * @author kono |
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16 * Forward Editor Command to the other Session Manager |
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17 * Basic send API is supported. |
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18 */ |
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19 public class Forwarder extends REPNode { |
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20 int seq = 0; |
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21 // REPCommands we sent to the next editor |
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22 final int limit=100; // debugging purpose, assert check only |
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23 final REPLogger ns = REPLogger.singleton(); |
387 | 24 |
25 public Forwarder(SessionManager manager, | |
26 REPSocketChannel<REPCommand> channel) { | |
27 super(manager,channel); | |
28 } | |
29 | |
30 public Forwarder(int editorNo, SessionManager manager, | |
31 REPSocketChannel<REPCommand> channel) { | |
32 super(editorNo,manager,channel); | |
382
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33 } |
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34 |
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35 public int seq() { |
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36 return seq++; |
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37 } |
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38 |
385 | 39 @Override |
382
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40 public void send(REPCommand command) { |
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41 assert(command!=null); |
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42 assert(channel!=null); |
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43 REPCommand c = new REPCommand(command); |
450 | 44 manager.addWriteQueue(new PacketSet(this, c)); |
382
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45 } |
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46 |
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47 public void sendWithSeq(REPCommand command) { |
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48 assert(command!=null); |
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49 assert(channel!=null); |
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50 REPCommand c = new REPCommand(command); |
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51 c.setSEQID(seq()); |
450 | 52 manager.addWriteQueue(new PacketSet(this, c)); |
382
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53 } |
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54 |
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55 public REPSocketChannel<REPCommand> getChannel() { |
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56 return channel; |
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57 } |
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58 |
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59 public void setChannel(REPSocketChannel<REPCommand> channel) { |
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60 this.channel = channel; |
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61 } |
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62 |
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63 public void setQuit2(REPCommand cmd) { |
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64 send(cmd); |
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65 } |
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66 |
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67 public void setNext(Forwarder next) { |
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68 this.next = next; |
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69 } |
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70 |
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71 public REPNode getNextForwarder() { |
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72 return next; |
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73 } |
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74 |
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75 public boolean manage(REPCommand command) { |
385 | 76 assert false; |
382
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77 return true; |
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78 } |
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79 |
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80 public String toString(){ |
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81 return ("Forwarder:" + channel); |
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82 } |
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83 |
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84 public String getLocalHostName() { |
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85 return channel.getLocalHostName(); |
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86 } |
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87 |
387 | 88 @Override |
382
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89 public void cancel(REPSocketChannel<REPCommand> socketChannel) { |
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90 manager.remove(socketChannel); |
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91 } |
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92 |
387 | 93 @Override |
94 public void handle(REPCommand command, REPSelectionKey<REPCommand> key) throws IOException { | |
382
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95 assert false; |
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96 } |
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97 |
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98 |
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99 public boolean isMerging() { |
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100 return false; |
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101 } |
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102 |
389 | 103 /* |
104 * Connect to the session which has a active connection (forwarder or | |
105 * editor) | |
106 */ | |
386 | 107 public void selectSession(REPCommand sendCommand,Session session) { |
389 | 108 // we have a selected session. |
109 if (isDirect()&&getEID()==sendCommand.eid) { | |
110 // Found directly connected joined editor. Send join_ack(). | |
111 // we have one more point to send JOIN_ACK to the editor. | |
112 session.addForwarder(this); | |
113 joinAck(sendCommand, session.getSID()); | |
406 | 114 return; |
389 | 115 } else { |
116 // We have a session, but joined editor is on the other sm. | |
117 // SELECT_ACK is sent to the session ring to | |
118 // find out the joined editor to send JOIN_ACK. | |
119 sendCommand.setCMD(REP.SMCMD_SELECT_ACK); | |
120 } | |
121 sendCommand.string = session.getName(); | |
122 send(sendCommand); | |
123 | |
124 } | |
125 | |
126 @Override | |
127 public void joinAck(REPCommand sendCommand, int sid) { | |
128 manager.sendUpdate(sid); | |
129 sendCommand.setCMD(REP.SMCMD_JOIN_ACK); | |
401 | 130 send(sendCommand); |
389 | 131 if (manager.sync) { |
132 REPCommand sync = new REPCommand(sendCommand); | |
133 sync.setCMD(REP.SMCMD_SYNC); | |
134 sendSync(sync); | |
386 | 135 } |
136 } | |
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137 |
399 | 138 @Override |
139 public void forwardedCommandManage(REPCommand command) { | |
140 | |
141 } | |
142 | |
143 @Override | |
144 public void checkWaitingCommandInMerge() { | |
145 | |
146 } | |
147 | |
431 | 148 |
450 | 149 @Override |
150 public void write(REPCommand command) { | |
151 channel.write(command); | |
152 } | |
153 | |
386 | 154 |
155 | |
156 | |
157 | |
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158 } |