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0
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1 package rep;
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2
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3 import java.io.IOException;
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4 import java.net.InetSocketAddress;
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2
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5 import java.nio.channels.SelectableChannel;
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0
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6 import java.nio.channels.SelectionKey;
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7 import java.nio.channels.Selector;
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179
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8
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178
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9 import java.util.Iterator;
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83
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10 import java.util.LinkedList;
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144
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11 import java.util.List;
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178
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12 import java.util.concurrent.BlockingQueue;
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0
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13
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123
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14 import rep.channel.REPServerSocketChannel;
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133
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15 import rep.channel.REPSocketChannel;
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144
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16 import rep.handler.PacketSet;
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146
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17 import rep.handler.REPHandler;
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148
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18 import rep.handler.REPHandlerImpl;
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164
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19 import rep.handler.REPHandlerInMerge;
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158
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20 import rep.channel.REPSelector;
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56
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21 import rep.xml.SessionXMLDecoder;
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45
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22 import rep.xml.SessionXMLEncoder;
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23
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1
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24 //+-------+--------+--------+-------+--------+---------+------+
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25 //| cmd | session| editor | seqid | lineno | textsiz | text |
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26 //| | id | id | | | | |
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27 //+-------+--------+--------+-------+--------+---------+------+
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28 //o-------header section (network order)-------------o
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29 /*int cmd; // command
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101
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30 int sid; // session ID : uniqu to editing file
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123
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31 int eid; // editor ID : owner editor ID = 1。Session に対して unique
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122
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32 int seqno; // Sequence number : sequence number はエディタごとに管理
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1
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33 int lineno; // line number
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101
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34 int textsize; // textsize : bytesize
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1
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35 byte[] text;*/
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36
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8
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37 public class SessionManager implements ConnectionListener, REPActionListener{
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0
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38
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39
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163
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40 //private SessionList sessionlist;
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164
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41 private LinkedList<Session> sessionList;
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83
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42 private SessionManagerGUI gui;
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2
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43 private Selector selector;
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7
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44 private SessionManagerList smList;
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17
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45 private String myHost;
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21
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46 private boolean isMaster = true;
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160
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47 //private EditorList ownEditorList;
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144
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48 private List<Editor> editorList;
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78
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49 private String maxHost;
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148
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50 private boolean isSimulation;
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155
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51 private List<PacketSet> packetSetList;
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178
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52 private BlockingQueue<SessionManagerEvent> waitingQueue;
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163
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53 //private List<SessionManagerNode> managerList;
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95
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54 private static int temp_port;
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55 private static int send_port;
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101
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56
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57 static final int DEFAULT_PORT = 8766;
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58
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2
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59 public SessionManager(int port) {
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182
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60 gui = new SessionManagerGUI(this);
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2
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61 }
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62
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63 public void openSelector() throws IOException{
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123
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64 selector = REPSelector.open();
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2
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65 }
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0
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66
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155
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67 public void init(int port) throws InterruptedException, IOException {
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2
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68
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148
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69 REPServerSocketChannel<REPCommand> ssc = REPServerSocketChannel.<REPCommand>open();
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122
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70 ssc.configureBlocking(false); //reuse address 必須
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101
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71 ssc.socket().setReuseAddress(true);
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0
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72 ssc.socket().bind(new InetSocketAddress(port));
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73 ssc.register(selector, SelectionKey.OP_ACCEPT);
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6
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74
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75
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163
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76 //sessionlist = new SessionList();
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144
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77 sessionList = new LinkedList<Session>();
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7
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78 smList = new SessionManagerList();
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162
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79 //ownEditorList = new EditorList();
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144
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80 editorList = new LinkedList<Editor>();
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155
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81 packetSetList = new LinkedList<PacketSet>();
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0
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82
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155
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83 // main loop
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84 mainLoop();
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85 }
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86
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87 private void mainLoop() throws IOException {
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0
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88 while(true){
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178
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89 if(checkSend()){
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90 if(selector.selectNow() > 0){
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91 select();
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92 }
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93 continue;
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94 }
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0
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95 selector.select();
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144
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96 select();
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97 }
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98 }
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99
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178
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100 private boolean checkSend() {
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101 for(Iterator<PacketSet> it = packetSetList.iterator(); it.hasNext();){
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102 PacketSet p = it.next();
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103 if(p.getEditor().isMerging()) {
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104 continue;
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105 }else{
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106 manage(p.channel, p.command);
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107 it.remove();
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108 }
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109 }
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110 return false;
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111 }
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112
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144
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113 private void select() throws IOException {
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178
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114 SessionManagerEvent e = waitingQueue.poll();
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115 if(e != null) {
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116 e.exec();
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117 }
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148
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118 for(SelectionKey key : selector.selectedKeys()){
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144
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119 if(key.isAcceptable()){
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120 /*** serverChannelはenableになったSelectionKeyのchannel ***/
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146
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121 REPServerSocketChannel serverChannel = (REPServerSocketChannel)key.channel();
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173
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122 REPSocketChannel channel = serverChannel.accept1(); //keyからchannelを取って、accept
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144
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123 registerChannel (selector, channel, SelectionKey.OP_READ);
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124 channel = null;
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123
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125
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144
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126 }else if(key.isReadable()){
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127
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146
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128 REPHandler handler = (REPHandler)key.attachment();
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129 handler.handle(key);
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144
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130
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131 }else if(key.isConnectable()){
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132 System.out.println("Connectable");
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0
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133 }
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134 }
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135 }
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1
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136
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178
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137 private void registerChannel(Selector selector, SelectableChannel channel, int ops) throws IOException {
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2
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138 if(channel == null) {
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139 return;
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140 }
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141 channel.configureBlocking(false);
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170
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142 REPHandler handler = new REPHandlerImpl(-1, this);
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148
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143 channel.register(selector, ops, handler);
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2
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144 }
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145
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144
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146 public void manage(REPSocketChannel<REPCommand> channel, REPCommand receivedCommand) {
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75
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147 if(receivedCommand == null) return;
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158
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148 //Session session;
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141
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149 REPCommand sendCommand = new REPCommand(receivedCommand);
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178
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150 REPSocketChannel<REPCommand> send = channel;
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144
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151
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75
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152 switch(receivedCommand.cmd){
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144
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153
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0
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154 case REP.SMCMD_JOIN:
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164
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155 {
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156 //どのSessionにも属さないエディタをリストに追加
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157 Editor editor = new Editor(editorList.size(), channel);
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158 editor.setHost(myHost);
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159 editorList.add(editor);
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144
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160
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164
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161 //GUIに反映
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182
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162 //gui.setComboEditor(editor.getEID(), channel);
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163 gui.update();
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164
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164 }
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165
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166
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167 break;
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144
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168
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1
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169 case REP.SMCMD_JOIN_ACK:
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144
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170
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1
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171 break;
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144
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172
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0
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173 case REP.SMCMD_PUT:
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164
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174 {
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175 //エディタのリストに追加
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176 Editor editor = new Editor(editorList.size(), channel);
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177 editorList.add(editor);
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178
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179 //Sessionを生成
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180 int sid = sessionList.size();
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181 editor = new Editor(0, channel);
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182 editor.setHost(myHost);
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183 Session session = new Session(sid, editor);
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184 session.hasOwner(true);
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185 sessionList.add(new Session(sid, editor));
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186
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187 //GUIに反映
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178
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188 //gui.update();ぐらいで
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164
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189 gui.setComboSession(session.getSID(), session.getName());
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190 gui.setComboEditor(editor.getEID(), editor.getChannel());
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158
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191
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164
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192 //エディタにAckを送信
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193 sendCommand.setCMD(REP.SMCMD_PUT_ACK);
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194 sendCommand.setEID(editor.getEID());
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195 sendCommand.setSID(session.getSID());
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196 editor.send(sendCommand);
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144
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197
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164
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198 //他のSessionManagerへSessionの追加を報告
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199 SessionXMLEncoder sessionEncoder = new SessionXMLEncoder(session);
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200 REPCommand command = new REPCommand();
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201 command.setSID(session.getSID());
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202 command.setString(sessionEncoder.sessionListToXML());
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203 command.setCMD(REP.SMCMD_UPDATE);
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204 smList.sendExcept(channel, command);
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205
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206 }
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207
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208 break;
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133
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209
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0
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210 case REP.SMCMD_SELECT:
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164
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211 {
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178
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212 //他のSessionManagerをエディタとしてSessionに追加
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164
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213 Editor editor = new Editor(channel);
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214 Session session = getSession(receivedCommand.sid);
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215 session.addEditor(editor);
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216
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217 if(session.hasOwner()){
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218 //このSessionManagerがオーナーを持っている場合、Sessionにエディタを追加し、エディタへAckを返す
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219 sendCommand.setCMD(REP.SMCMD_SELECT_ACK);
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220 sendCommand.setEID(editor.getEID());
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221 editor.send(sendCommand);
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222 }else{
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223 //オーナーを持ってない場合は、オーナーを持っているSessionManagerへSELECTコマンドを中継する
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224 Editor owner = session.getOwner();
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225 owner.send(receivedCommand);
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148
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226 }
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164
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227 }
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144
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228
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164
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229 break;
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144
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230
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8
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231 case REP.SMCMD_SELECT_ACK:
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160
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232 {
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85
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233 String hostport = receivedCommand.string;
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160
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234 Editor editor = getEditor(hostport);
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164
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235
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160
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236 if(editor != null) {
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237 //host, port を見て、このコマンドが自分が送信したSelectコマンドのAckかどうかを判断する
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238 REPCommand command = new REPCommand();
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239 command.setCMD(REP.SMCMD_JOIN_ACK);
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240 command.setSID(receivedCommand.sid);
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241 command.setEID(receivedCommand.eid);
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242 editor.send(command);
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164
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243
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85
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244 }else{
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160
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245 //自分が送信したコマンドでなければ、次のSessionManagerへ中継する
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85
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246 smList.sendExcept(channel, receivedCommand);
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247 }
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160
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248 }
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144
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249
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164
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250 break;
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144
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251
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8
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252 case REP.SMCMD_SM_JOIN:
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164
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253
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160
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254 {
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122
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255 //SessionManagerのリストへ追加
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83
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256 smList.add(channel);
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144
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257
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122
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258 //XMLからSessionListオブジェクトを生成する。
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77
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259 SessionXMLDecoder decoder = new SessionXMLDecoder();
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79
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260 SessionList receivedSessionList = decoder.decode(receivedCommand.string);
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144
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261
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122
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262 //SessionListへ追加し変換テーブルを生成する。
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163
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263 //sessionlist.update(channel, receivedSessionList);
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144
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264
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122
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265 //myHost を設定。
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178
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266 //立ち上げ時にやるとlocalhostしか取れない
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76
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267 if(myHost == null) setMyHostName(getLocalHostName(channel));
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144
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268
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122
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269 //maxHost を設定。
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95
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270 if(setMaxHost(channel, receivedSessionList.getMaxHost())){
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271 sendCommand = new REPCommand();
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272 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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273 sendCommand.setString(maxHost);
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274 smList.sendExcept(channel, sendCommand);
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275 }
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144
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276
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122
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277 //SessionListからXMLを生成。
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278 //joinしてきたSessionManagerに対してACKを送信。
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164
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279 SessionXMLEncoder sessionlistEncoder = new SessionXMLEncoder(sessionList);
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78
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280 sendCommand = new REPCommand();
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281 sendCommand.setCMD(REP.SMCMD_SM_JOIN_ACK);
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282 sendCommand.setString(sessionlistEncoder.sessionListToXML());
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178
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283 send.write(sendCommand);
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144
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284
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122
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285 //その他の SessionManager に対して SMCMD_UPDATEを 送信。
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78
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286 sendCommand = new REPCommand();
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83
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287 sendCommand.setCMD(REP.SMCMD_UPDATE);
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78
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288 sendCommand.setString(receivedCommand.string);
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289 smList.sendExcept(channel, sendCommand);
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144
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290
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160
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291 }
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164
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292 break;
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144
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293
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8
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294 case REP.SMCMD_SM_JOIN_ACK:
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144
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295
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122
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296 //XMLからSessionListオブジェクトを生成。
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82
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297 SessionXMLDecoder decoder2 = new SessionXMLDecoder();
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298 SessionList receivedSessionList2 = decoder2.decode(receivedCommand.string);
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144
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299
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122
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300 //maxHostを決定。
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95
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301 if(setMaxHost(channel, receivedSessionList2.getMaxHost())){
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302 sendCommand = new REPCommand();
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303 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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304 sendCommand.setString(maxHost);
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305 smList.sendExcept(channel, sendCommand);
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306 }
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144
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307
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6
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308 break;
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144
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309
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8
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310 case REP.SMCMD_UPDATE:
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144
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311
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99
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312 SessionXMLDecoder decoder3 = new SessionXMLDecoder();
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313 SessionList receivedSessionList3 = decoder3.decode(receivedCommand.string);
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144
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314
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122
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315 //SessionListへ追加し変換テーブルを生成する。
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163
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316 //sessionlist.update(channel, receivedSessionList3);
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179
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317 sessionList.add(new Session(new Editor(channel)));
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178
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318
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99
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319 smList.sendExcept(channel, receivedCommand);
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144
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320
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100
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321 for(Session session3 : receivedSessionList3.getList()){
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178
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322 //gui.update();
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100
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323 gui.setComboSession(session3.getSID(), session3.getName());
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324 }
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144
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325
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9
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326 break;
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144
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327
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9
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328 case REP.SMCMD_UPDATE_ACK:
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164
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329 if(receivedCommand.sid > sessionList.size()){
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148
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330 Editor editor = new Editor(channel);
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75
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331 editor.setName(receivedCommand.string);
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144
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332
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158
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333 Session session = new Session(editor);
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73
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334 session.addEditor(editor);
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144
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335
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164
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336 sessionList.add(session);
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144
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337
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83
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338 gui.setComboSession(session.getSID(), session.getName());
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73
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339 }
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75
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340 smList.sendToSlave(receivedCommand);
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1
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341 break;
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144
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342
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95
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343 case REP.SMCMD_CH_MASTER:
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122
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344 //maxHost を設定。
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95
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345 if(setMaxHost(channel, receivedCommand.string)){
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346 sendCommand = new REPCommand();
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347 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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348 sendCommand.setString(maxHost);
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349 smList.sendExcept(channel, sendCommand);
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350 }
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351 break;
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144
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352
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0
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353 default:
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164
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354 {
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144
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355 //sid から Session を取得
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158
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356 Session session = getSession(receivedCommand.sid);
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144
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357 //マージの処理と次のエディタへコマンドを送信する処理
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358 session.translate(channel, receivedCommand);
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164
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359
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178
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360
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167
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361 Editor editor = session.getEditor(channel);
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362 Editor prevEditor = session.getPrevEditor(editor);
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363
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179
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364 //マージ中は前のエディタからのコマンドを受信しない
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164
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365 if(editor.isMerging()){
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366 //Handlerを切り替える
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167
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367 setMergeState(prevEditor.getChannel(), session.getSID());
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169
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368 }else {
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178
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369 setNormalState(prevEditor.getChannel(), session.getSID());
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164
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370 }
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371 }
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144
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372 break;
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373 }
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374 }
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375
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169
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376 private void setNormalState(REPSocketChannel<REPCommand> channel, int sid) {
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377 SelectionKey key = channel.keyFor(selector);
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378 key.attach(new REPHandlerImpl(sid, this));
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379 }
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380
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167
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381 private void setMergeState(REPSocketChannel<REPCommand> channel, int sid) {
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|
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382 SelectionKey key = channel.keyFor(selector);
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|
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383 key.attach(new REPHandlerInMerge(sid, this));
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164
|
384 }
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|
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385
|
|
160
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386 private Editor getEditor(String hostport) {
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178
|
387 for(Editor editor : editorList){
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|
|
388 if(editor.getHost() == hostport){
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389 return editor;
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|
|
390 }
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|
|
391 }
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|
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392 return null;
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|
|
393 }
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394
|
|
|
395 public Editor getEditor(REPSocketChannel channel){
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396 for(Editor editor : editorList){
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|
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397 if(editor.getChannel() == channel){
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398 return editor;
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|
399 }
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|
|
400 }
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160
|
401 return null;
|
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|
402 }
|
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|
403
|
|
144
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404 private Session getSession(int sid) {
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405 for(Session session : sessionList){
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|
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406 if(session.getSID() == sid) return session;
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|
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407 }
|
|
|
408 return null;
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|
0
|
409 }
|
|
83
|
410
|
|
139
|
411 private boolean setMaxHost(REPSocketChannel channel, String maxHost2) {
|
|
179
|
412 if(maxHost.compareTo(maxHost2) > 0){
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|
413 return false;
|
|
|
414 }else{
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415 maxHost = maxHost2;
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416 return true;
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|
|
417 }
|
|
139
|
418 }
|
|
|
419
|
|
76
|
420 private void setMyHostName(String localHostName) {
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|
95
|
421 myHost = localHostName + temp_port;
|
|
81
|
422 if(maxHost == null) {
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|
|
423 maxHost = myHost;
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|
|
424 }
|
|
164
|
425 setHostToEditor(myHost);
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|
|
426 }
|
|
|
427
|
|
|
428 private void setHostToEditor(String myHost2) {
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|
|
429 for(Editor editor : editorList){
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|
|
430 editor.setHost(myHost2);
|
|
|
431 }
|
|
76
|
432 }
|
|
0
|
433
|
|
|
434 public static void main(String[] args) throws InterruptedException, IOException {
|
|
101
|
435 int port = DEFAULT_PORT;
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|
|
436 int port_s = DEFAULT_PORT;
|
|
113
|
437 //System.setProperty("file.encoding", "UTF-8");
|
|
82
|
438 if(args.length > 0){
|
|
39
|
439 port = Integer.parseInt(args[0]);
|
|
95
|
440 port_s = Integer.parseInt(args[1]);
|
|
0
|
441 }
|
|
95
|
442 temp_port = port;
|
|
|
443 send_port = port_s;
|
|
0
|
444 SessionManager sm = new SessionManager(port);
|
|
2
|
445 sm.openSelector();
|
|
|
446 sm.openWindow();
|
|
155
|
447 sm.init(port);
|
|
|
448 sm.mainLoop();
|
|
0
|
449 }
|
|
|
450
|
|
2
|
451 private void openWindow() {
|
|
83
|
452 Thread th = new Thread( gui );
|
|
2
|
453 th.start();
|
|
83
|
454 gui.addConnectionListener(this);
|
|
|
455 gui.addREPActionListener(this);
|
|
2
|
456 }
|
|
|
457
|
|
178
|
458 public void connectSession(String host) {
|
|
101
|
459 int port = DEFAULT_PORT;
|
|
95
|
460 port = send_port;
|
|
1
|
461 InetSocketAddress addr = new InetSocketAddress(host, port);
|
|
|
462 try {
|
|
164
|
463 REPSocketChannel<REPCommand> sessionchannel = REPSocketChannel.<REPCommand>create();
|
|
1
|
464 sessionchannel.configureBlocking(true);
|
|
|
465 sessionchannel.connect(addr);
|
|
6
|
466 while(!sessionchannel.finishConnect()){
|
|
77
|
467 System.out.print("test afro");
|
|
6
|
468 }
|
|
|
469 System.out.println("");
|
|
2
|
470 registerChannel(selector, sessionchannel, SelectionKey.OP_READ);
|
|
45
|
471
|
|
77
|
472 sm_join(sessionchannel);
|
|
45
|
473
|
|
1
|
474 }catch (IOException e) {
|
|
|
475 e.printStackTrace();
|
|
|
476 }
|
|
|
477 }
|
|
77
|
478
|
|
164
|
479 private void sm_join(REPSocketChannel<REPCommand> channel){
|
|
79
|
480
|
|
122
|
481 //SM_JOINコマンドを生成。
|
|
77
|
482 REPCommand command = new REPCommand();
|
|
|
483 command.setCMD(REP.SMCMD_SM_JOIN);
|
|
79
|
484
|
|
122
|
485 //hostnameをセット。
|
|
82
|
486 setMyHostName(getLocalHostName(channel));
|
|
|
487
|
|
122
|
488 //XMLを生成。送信コマンドにセット。
|
|
164
|
489 SessionXMLEncoder encoder = new SessionXMLEncoder(sessionList);
|
|
77
|
490 String string = encoder.sessionListToXML();
|
|
|
491 command.setString(string);
|
|
|
492
|
|
122
|
493 //SM_JOINコマンドを送信。
|
|
77
|
494 REPPacketSend send = new REPPacketSend(channel);
|
|
|
495 send.send(command);
|
|
|
496
|
|
122
|
497 //SessionManagerのListに追加。
|
|
77
|
498 smList.add(channel);
|
|
|
499 }
|
|
2
|
500
|
|
139
|
501 private String getLocalHostName(REPSocketChannel channel) {
|
|
74
|
502 String host = null;
|
|
|
503 host = channel.socket().getLocalAddress().getHostName();
|
|
|
504 return host;
|
|
|
505 }
|
|
|
506
|
|
2
|
507 public void connectionOccured(ConnectionEvent event) {
|
|
178
|
508 try {
|
|
|
509 waitingQueue.put(event);
|
|
|
510 } catch (InterruptedException e) {
|
|
|
511 }
|
|
|
512 selector.wakeup();
|
|
2
|
513 }
|
|
8
|
514
|
|
|
515 public void ActionOccured(REPActionEvent event) {
|
|
104
|
516
|
|
163
|
517 REPSocketChannel<REPCommand> channel = event.getEditorChannel();
|
|
107
|
518 int sid = event.getSID();
|
|
164
|
519 Session session = getSession(sid);
|
|
158
|
520 if(session.hasOwner()){
|
|
148
|
521 Editor editor = new Editor(channel);
|
|
|
522 session.addEditor(new Editor(channel));
|
|
107
|
523 REPCommand sendCommand = new REPCommand();
|
|
|
524 sendCommand.setCMD(REP.SMCMD_JOIN_ACK);
|
|
148
|
525 sendCommand.setEID(editor.getEID());
|
|
107
|
526 sendCommand.setSID(sid);
|
|
|
527 REPPacketSend sender = new REPPacketSend(channel);
|
|
|
528 sender.send(sendCommand);
|
|
|
529 }else {
|
|
164
|
530 REPSocketChannel<REPCommand> editorChannel = event.getEditorChannel();
|
|
107
|
531 sid = event.getSID();
|
|
|
532 Editor editor = new Editor(editorChannel);
|
|
|
533 editor.setHost(myHost);
|
|
164
|
534 session = getSession(sid);
|
|
107
|
535 session.addEditor(editor);
|
|
|
536
|
|
158
|
537 Editor owner = session.getOwner();
|
|
107
|
538
|
|
|
539 REPCommand command = new REPCommand();
|
|
|
540 command.setCMD(REP.SMCMD_SELECT);
|
|
|
541 command.setSID(sid);
|
|
178
|
542 command.setString(editor.getHost());
|
|
107
|
543 owner.send(command);
|
|
|
544 }
|
|
72
|
545
|
|
|
546
|
|
8
|
547 }
|
|
122
|
548
|
|
144
|
549 public void addWaitingCommand(PacketSet set) {
|
|
155
|
550 packetSetList.add(set);
|
|
144
|
551 }
|
|
148
|
552
|
|
0
|
553 }
|
