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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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5 import java.nio.channels.SelectionKey;
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178
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6 import java.util.Iterator;
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83
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7 import java.util.LinkedList;
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144
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8 import java.util.List;
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231
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9 import java.util.Set;
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178
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10 import java.util.concurrent.BlockingQueue;
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192
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11 import java.util.concurrent.LinkedBlockingQueue;
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0
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12
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198
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13 import javax.swing.SwingUtilities;
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14
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123
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15 import rep.channel.REPServerSocketChannel;
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133
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16 import rep.channel.REPSocketChannel;
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144
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17 import rep.handler.PacketSet;
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146
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18 import rep.handler.REPHandler;
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148
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19 import rep.handler.REPHandlerImpl;
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164
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20 import rep.handler.REPHandlerInMerge;
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158
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21 import rep.channel.REPSelector;
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56
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22 import rep.xml.SessionXMLDecoder;
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45
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23 import rep.xml.SessionXMLEncoder;
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198
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24 import rep.channel.REPSelectionKey;
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25 /*
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1
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26 //+-------+--------+--------+-------+--------+---------+------+
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27 //| cmd | session| editor | seqid | lineno | textsiz | text |
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28 //| | id | id | | | | |
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29 //+-------+--------+--------+-------+--------+---------+------+
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30 //o-------header section (network order)-------------o
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198
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31 int cmd; // command
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101
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32 int sid; // session ID : uniqu to editing file
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123
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33 int eid; // editor ID : owner editor ID = 1。Session に対して unique
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122
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34 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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35 int lineno; // line number
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101
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36 int textsize; // textsize : bytesize
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198
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37 byte[] text;
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38 */
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1
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39
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250
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40 public class SessionManager implements SessionManagerEventListener{
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0
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41
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164
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42 private LinkedList<Session> sessionList;
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83
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43 private SessionManagerGUI gui;
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198
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44 private REPSelector<REPCommand> selector;
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7
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45 private SessionManagerList smList;
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17
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46 private String myHost;
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144
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47 private List<Editor> editorList;
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78
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48 private String maxHost;
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212
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49 private List<PacketSet> waitingCommandInMerge;
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178
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50 private BlockingQueue<SessionManagerEvent> waitingQueue;
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95
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51 private static int temp_port;
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52 private static int send_port;
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101
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53 static final int DEFAULT_PORT = 8766;
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54
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2
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55 public SessionManager(int port) {
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191
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56
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2
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57 }
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58
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59 public void openSelector() throws IOException{
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231
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60 selector = REPSelector.<REPCommand>create();
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2
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61 }
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0
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62
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155
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63 public void init(int port) throws InterruptedException, IOException {
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2
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64
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186
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65 REPServerSocketChannel<REPCommand> ssc = REPServerSocketChannel.<REPCommand>open(new REPCommandPacker());
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122
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66 ssc.configureBlocking(false); //reuse address 必須
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101
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67 ssc.socket().setReuseAddress(true);
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212
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68 //getAllByNameで取れた全てのアドレスに対してbindする
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69 ssc.socket().bind(new InetSocketAddress(port));
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192
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70 ssc.register(selector, SelectionKey.OP_ACCEPT, new REPHandlerImpl(-1, this));
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6
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71
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144
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72 sessionList = new LinkedList<Session>();
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7
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73 smList = new SessionManagerList();
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144
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74 editorList = new LinkedList<Editor>();
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212
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75 waitingCommandInMerge = new LinkedList<PacketSet>();
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192
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76 waitingQueue = new LinkedBlockingQueue<SessionManagerEvent>();
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228
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77
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78 //デフォルトのSessionを作っておく（テスト用に？）
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79 if(sessionList.size() > 0) System.out.println("Error : SessionManager.init():");
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80 Session defaultSession = new Session(sessionList.size(), "DefaultSession.txt", new Editor(0,null));
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81 sessionList.add(defaultSession);
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215
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82
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155
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83 }
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84
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231
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85 public void mainLoop() throws IOException {
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0
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86 while(true){
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178
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87 if(checkSend()){
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88 if(selector.selectNow() > 0){
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89 select();
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90 }
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91 continue;
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92 }
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233
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93 selector.select();
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144
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94 select();
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95 }
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96 }
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97
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178
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98 private boolean checkSend() {
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212
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99 for(Iterator<PacketSet> it = waitingCommandInMerge.iterator(); it.hasNext();){
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178
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100 PacketSet p = it.next();
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101 if(p.getEditor().isMerging()) {
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102 continue;
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103 }else{
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104 manage(p.channel, p.command);
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105 it.remove();
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212
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106 return true;
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178
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107 }
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108 }
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109 return false;
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110 }
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111
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144
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112 private void select() throws IOException {
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212
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113 SessionManagerEvent e;
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114 while((e = waitingQueue.poll())!=null){
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178
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115 e.exec();
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116 }
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231
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117
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118 Set<REPSelectionKey<REPCommand>> keys = selector.selectedKeys1();
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119 for(REPSelectionKey<REPCommand> key : keys){
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144
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120 if(key.isAcceptable()){
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199
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121 REPSocketChannel<REPCommand> channel = key.accept(new REPCommandPacker());
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233
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122 System.out.println("SessionManager.select() : key.isAcceptable : channel = " + channel);
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229
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123 registerChannel (channel, SelectionKey.OP_READ);
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144
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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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212
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127 REPHandler handler = (REPHandler)(key.attachment());
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146
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128 handler.handle(key);
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144
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129
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0
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130 }
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131 }
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132 }
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1
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133
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229
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134 private void registerChannel(REPSocketChannel<REPCommand> channel, int ops) throws IOException {
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2
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135 if(channel == null) {
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136 return;
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137 }
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138 channel.configureBlocking(false);
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170
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139 REPHandler handler = new REPHandlerImpl(-1, this);
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148
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140 channel.register(selector, ops, handler);
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2
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141 }
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142
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144
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143 public void manage(REPSocketChannel<REPCommand> channel, REPCommand receivedCommand) {
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75
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144 if(receivedCommand == null) return;
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158
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145 //Session session;
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141
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146 REPCommand sendCommand = new REPCommand(receivedCommand);
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178
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147 REPSocketChannel<REPCommand> send = channel;
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144
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148
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75
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149 switch(receivedCommand.cmd){
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144
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150
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0
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151 case REP.SMCMD_JOIN:
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164
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152 {
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153 //どのSessionにも属さないエディタをリストに追加
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212
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154 //エディタとchannelは1対1
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155 //エディタが新しくputする場合は新しくソケットを作る
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164
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156 Editor editor = new Editor(editorList.size(), channel);
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157 editor.setHost(myHost);
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158 editorList.add(editor);
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144
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159
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212
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160 guiUpdate();
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199
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161
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164
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162 }
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163
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164 break;
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144
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165
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1
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166 case REP.SMCMD_JOIN_ACK:
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212
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167 assert (false);
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1
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168 break;
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144
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169
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0
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170 case REP.SMCMD_PUT:
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164
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171 {
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172 //エディタのリストに追加
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173 Editor editor = new Editor(editorList.size(), channel);
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227
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174 //editorList.add(editor);
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164
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175
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176 //Sessionを生成
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177 int sid = sessionList.size();
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178 editor = new Editor(0, channel);
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179 editor.setHost(myHost);
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227
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180 Session session = new Session(sid, receivedCommand.string, editor);
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164
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181 session.hasOwner(true);
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227
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182 sessionList.add(session);
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164
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183
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212
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184 guiUpdate();
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158
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185
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164
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186 //エディタにAckを送信
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187 sendCommand.setCMD(REP.SMCMD_PUT_ACK);
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188 sendCommand.setEID(editor.getEID());
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189 sendCommand.setSID(session.getSID());
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190 editor.send(sendCommand);
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144
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191
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164
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192 //他のSessionManagerへSessionの追加を報告
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212
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193 //親に送って、親から子へ
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164
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194 SessionXMLEncoder sessionEncoder = new SessionXMLEncoder(session);
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195 REPCommand command = new REPCommand();
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196 command.setSID(session.getSID());
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197 command.setString(sessionEncoder.sessionListToXML());
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198 command.setCMD(REP.SMCMD_UPDATE);
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199 smList.sendExcept(channel, command);
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200
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201 }
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202
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203 break;
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133
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204
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0
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205 case REP.SMCMD_SELECT:
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164
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206 {
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178
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207 //他のSessionManagerをエディタとしてSessionに追加
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164
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208 Editor editor = new Editor(channel);
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209 Session session = getSession(receivedCommand.sid);
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210 session.addEditor(editor);
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211
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212 if(session.hasOwner()){
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213 //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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214 sendCommand.setCMD(REP.SMCMD_SELECT_ACK);
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215 sendCommand.setEID(editor.getEID());
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216 editor.send(sendCommand);
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217 }else{
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218 //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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219 Editor owner = session.getOwner();
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220 owner.send(receivedCommand);
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148
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221 }
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164
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222 }
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144
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223
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164
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224 break;
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144
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225
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8
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226 case REP.SMCMD_SELECT_ACK:
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160
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227 {
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85
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228 String hostport = receivedCommand.string;
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160
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229 Editor editor = getEditor(hostport);
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164
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230
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160
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231 if(editor != null) {
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232 //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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233 REPCommand command = new REPCommand();
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234 command.setCMD(REP.SMCMD_JOIN_ACK);
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235 command.setSID(receivedCommand.sid);
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236 command.setEID(receivedCommand.eid);
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237 editor.send(command);
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164
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238
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85
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239 }else{
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160
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240 //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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241 smList.sendExcept(channel, receivedCommand);
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242 }
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160
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243 }
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144
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244
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164
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245 break;
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144
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246
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8
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247 case REP.SMCMD_SM_JOIN:
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164
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248
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160
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249 {
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122
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250 //SessionManagerのリストへ追加
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83
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251 smList.add(channel);
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144
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252
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122
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253 //XMLからSessionListオブジェクトを生成する。
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77
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254 SessionXMLDecoder decoder = new SessionXMLDecoder();
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79
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255 SessionList receivedSessionList = decoder.decode(receivedCommand.string);
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144
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256
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122
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257 //myHost を設定。
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178
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258 //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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259 if(myHost == null) setMyHostName(getLocalHostName(channel));
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144
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260
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122
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261 //maxHost を設定。
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95
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262 if(setMaxHost(channel, receivedSessionList.getMaxHost())){
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263 sendCommand = new REPCommand();
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264 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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265 sendCommand.setString(maxHost);
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266 smList.sendExcept(channel, sendCommand);
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267 }
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144
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268
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122
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269 //SessionListからXMLを生成。
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270 //joinしてきたSessionManagerに対してACKを送信。
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164
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271 SessionXMLEncoder sessionlistEncoder = new SessionXMLEncoder(sessionList);
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78
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272 sendCommand = new REPCommand();
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273 sendCommand.setCMD(REP.SMCMD_SM_JOIN_ACK);
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274 sendCommand.setString(sessionlistEncoder.sessionListToXML());
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178
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275 send.write(sendCommand);
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144
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276
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122
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277 //その他の SessionManager に対して SMCMD_UPDATEを 送信。
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78
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278 sendCommand = new REPCommand();
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83
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279 sendCommand.setCMD(REP.SMCMD_UPDATE);
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78
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280 sendCommand.setString(receivedCommand.string);
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281 smList.sendExcept(channel, sendCommand);
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144
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282
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160
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283 }
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164
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284 break;
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144
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285
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8
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286 case REP.SMCMD_SM_JOIN_ACK:
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144
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287
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122
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288 //XMLからSessionListオブジェクトを生成。
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82
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289 SessionXMLDecoder decoder2 = new SessionXMLDecoder();
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290 SessionList receivedSessionList2 = decoder2.decode(receivedCommand.string);
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144
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291
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122
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292 //maxHostを決定。
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95
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293 if(setMaxHost(channel, receivedSessionList2.getMaxHost())){
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294 sendCommand = new REPCommand();
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295 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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296 sendCommand.setString(maxHost);
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297 smList.sendExcept(channel, sendCommand);
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298 }
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144
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299
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6
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300 break;
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144
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301
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8
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302 case REP.SMCMD_UPDATE:
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200
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303 {
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99
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304 SessionXMLDecoder decoder3 = new SessionXMLDecoder();
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305 SessionList receivedSessionList3 = decoder3.decode(receivedCommand.string);
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144
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306
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200
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307 //UPDATEコマンドにより送られてきたSessionの情報を追加する
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308 LinkedList<Session> list = receivedSessionList3.getList();
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309 for(Session session : list){
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310 session.getEditorList().get(0).setChannel(channel);
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311 sessionList.add(session);
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312 }
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313
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314 //他のSessionManagerへ中継する
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99
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315 smList.sendExcept(channel, receivedCommand);
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144
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316
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200
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317 //リストのコピーをGUIに渡す
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318 LinkedList<Session> sList = new LinkedList<Session>(sessionList);
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319 LinkedList<Editor> eList = new LinkedList<Editor>(editorList);
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320 //GUIに反映
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321 Runnable doRun = new DoGUIUpdate(sList, eList, gui);
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322 SwingUtilities.invokeLater(doRun);
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323 }
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9
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324 break;
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144
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325
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9
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326 case REP.SMCMD_UPDATE_ACK:
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200
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327 {
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164
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328 if(receivedCommand.sid > sessionList.size()){
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148
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329 Editor editor = new Editor(channel);
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75
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330 editor.setName(receivedCommand.string);
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144
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331
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158
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332 Session session = new Session(editor);
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73
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333 session.addEditor(editor);
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144
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334
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164
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335 sessionList.add(session);
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200
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336
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337 //リストのコピーをGUIに渡す
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338 LinkedList<Session> sList = new LinkedList<Session>(sessionList);
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339 LinkedList<Editor> eList = new LinkedList<Editor>(editorList);
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340 //GUIに反映
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341 Runnable doRun = new DoGUIUpdate(sList, eList, gui);
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342 SwingUtilities.invokeLater(doRun);
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73
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343 }
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75
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344 smList.sendToSlave(receivedCommand);
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200
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345 }
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1
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346 break;
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144
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347
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95
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348 case REP.SMCMD_CH_MASTER:
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200
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349 {
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122
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350 //maxHost を設定。
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95
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351 if(setMaxHost(channel, receivedCommand.string)){
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352 sendCommand = new REPCommand();
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353 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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354 sendCommand.setString(maxHost);
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355 smList.sendExcept(channel, sendCommand);
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356 }
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200
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357 }
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95
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358 break;
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144
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359
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213
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360 case REP.REPCMD_DELETE:
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361 case REP.REPCMD_INSERT:
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164
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362 {
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144
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363 //sid から Session を取得
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158
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364 Session session = getSession(receivedCommand.sid);
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144
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365 //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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366 session.translate(channel, receivedCommand);
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164
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367
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178
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368
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167
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369 Editor editor = session.getEditor(channel);
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370 Editor prevEditor = session.getPrevEditor(editor);
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371
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201
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372 //マージ中のエディタはコマンドを受け取らない
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164
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373 if(editor.isMerging()){
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|
374 //Handlerを切り替える
|
|
167
|
375 setMergeState(prevEditor.getChannel(), session.getSID());
|
|
169
|
376 }else {
|
|
178
|
377 setNormalState(prevEditor.getChannel(), session.getSID());
|
|
164
|
378 }
|
|
|
379 }
|
|
144
|
380 break;
|
|
213
|
381
|
|
|
382 default:
|
|
|
383 assert(false);
|
|
|
384 break;
|
|
|
385
|
|
144
|
386 }
|
|
|
387 }
|
|
|
388
|
|
212
|
389 private void guiUpdate() {
|
|
231
|
390 if(gui == null){
|
|
|
391 //System.out.println("SessionManager.guiUpdate() : gui = " + gui);
|
|
|
392 return;
|
|
|
393 }
|
|
212
|
394 //リストのコピーをGUIに渡す
|
|
|
395 LinkedList<Session> sList = new LinkedList<Session>(sessionList);
|
|
|
396 LinkedList<Editor> eList = new LinkedList<Editor>(editorList);
|
|
250
|
397 for(Editor editor : eList){
|
|
|
398 System.out.println("SessionManager.guiUpdate() : channel = " + editor.getChannel());
|
|
|
399 }
|
|
|
400
|
|
212
|
401 //GUIに反映
|
|
|
402 Runnable doRun = new DoGUIUpdate(sList, eList, gui);
|
|
|
403 SwingUtilities.invokeLater(doRun);
|
|
|
404 }
|
|
|
405
|
|
169
|
406 private void setNormalState(REPSocketChannel<REPCommand> channel, int sid) {
|
|
256
|
407 System.out.println("SessionManager.setNormalState() : channel = " + channel);
|
|
|
408 System.out.println("SessionManager.setNormalState() : selector = " + selector);
|
|
169
|
409 SelectionKey key = channel.keyFor(selector);
|
|
256
|
410 System.out.println("SessionManager.setNormalState() : key = " + key);
|
|
169
|
411 key.attach(new REPHandlerImpl(sid, this));
|
|
|
412 }
|
|
|
413
|
|
167
|
414 private void setMergeState(REPSocketChannel<REPCommand> channel, int sid) {
|
|
|
415 SelectionKey key = channel.keyFor(selector);
|
|
|
416 key.attach(new REPHandlerInMerge(sid, this));
|
|
164
|
417 }
|
|
|
418
|
|
160
|
419 private Editor getEditor(String hostport) {
|
|
178
|
420 for(Editor editor : editorList){
|
|
|
421 if(editor.getHost() == hostport){
|
|
|
422 return editor;
|
|
|
423 }
|
|
|
424 }
|
|
|
425 return null;
|
|
|
426 }
|
|
|
427
|
|
224
|
428 public Editor getEditor(REPSocketChannel<REPCommand> channel){
|
|
178
|
429 for(Editor editor : editorList){
|
|
|
430 if(editor.getChannel() == channel){
|
|
|
431 return editor;
|
|
|
432 }
|
|
|
433 }
|
|
160
|
434 return null;
|
|
|
435 }
|
|
|
436
|
|
144
|
437 private Session getSession(int sid) {
|
|
|
438 for(Session session : sessionList){
|
|
|
439 if(session.getSID() == sid) return session;
|
|
|
440 }
|
|
|
441 return null;
|
|
0
|
442 }
|
|
83
|
443
|
|
224
|
444 private boolean setMaxHost(REPSocketChannel<REPCommand> channel, String maxHost2) {
|
|
179
|
445 if(maxHost.compareTo(maxHost2) > 0){
|
|
|
446 return false;
|
|
|
447 }else{
|
|
|
448 maxHost = maxHost2;
|
|
|
449 return true;
|
|
|
450 }
|
|
139
|
451 }
|
|
|
452
|
|
76
|
453 private void setMyHostName(String localHostName) {
|
|
95
|
454 myHost = localHostName + temp_port;
|
|
81
|
455 if(maxHost == null) {
|
|
|
456 maxHost = myHost;
|
|
|
457 }
|
|
164
|
458 setHostToEditor(myHost);
|
|
|
459 }
|
|
|
460
|
|
|
461 private void setHostToEditor(String myHost2) {
|
|
|
462 for(Editor editor : editorList){
|
|
|
463 editor.setHost(myHost2);
|
|
|
464 }
|
|
76
|
465 }
|
|
0
|
466
|
|
|
467 public static void main(String[] args) throws InterruptedException, IOException {
|
|
191
|
468
|
|
101
|
469 int port = DEFAULT_PORT;
|
|
|
470 int port_s = DEFAULT_PORT;
|
|
113
|
471 //System.setProperty("file.encoding", "UTF-8");
|
|
82
|
472 if(args.length > 0){
|
|
39
|
473 port = Integer.parseInt(args[0]);
|
|
95
|
474 port_s = Integer.parseInt(args[1]);
|
|
0
|
475 }
|
|
95
|
476 temp_port = port;
|
|
|
477 send_port = port_s;
|
|
0
|
478 SessionManager sm = new SessionManager(port);
|
|
2
|
479 sm.openSelector();
|
|
155
|
480 sm.init(port);
|
|
191
|
481 sm.startGUI(sm);
|
|
155
|
482 sm.mainLoop();
|
|
191
|
483
|
|
0
|
484 }
|
|
|
485
|
|
250
|
486 public void startGUI(SessionManager sm) {
|
|
222
|
487 gui = new SessionManagerGUI();
|
|
83
|
488 Thread th = new Thread( gui );
|
|
2
|
489 th.start();
|
|
222
|
490 gui.addREPActionListener(this);
|
|
2
|
491 }
|
|
|
492
|
|
178
|
493 public void connectSession(String host) {
|
|
101
|
494 int port = DEFAULT_PORT;
|
|
95
|
495 port = send_port;
|
|
1
|
496 InetSocketAddress addr = new InetSocketAddress(host, port);
|
|
|
497 try {
|
|
186
|
498 REPSocketChannel<REPCommand> sessionchannel = REPSocketChannel.<REPCommand>create(new REPCommandPacker());
|
|
1
|
499 sessionchannel.configureBlocking(true);
|
|
|
500 sessionchannel.connect(addr);
|
|
6
|
501 while(!sessionchannel.finishConnect()){
|
|
77
|
502 System.out.print("test afro");
|
|
6
|
503 }
|
|
|
504 System.out.println("");
|
|
229
|
505 registerChannel(sessionchannel, SelectionKey.OP_READ);
|
|
45
|
506
|
|
77
|
507 sm_join(sessionchannel);
|
|
45
|
508
|
|
1
|
509 }catch (IOException e) {
|
|
|
510 e.printStackTrace();
|
|
|
511 }
|
|
|
512 }
|
|
77
|
513
|
|
164
|
514 private void sm_join(REPSocketChannel<REPCommand> channel){
|
|
79
|
515
|
|
122
|
516 //SM_JOINコマンドを生成。
|
|
77
|
517 REPCommand command = new REPCommand();
|
|
|
518 command.setCMD(REP.SMCMD_SM_JOIN);
|
|
79
|
519
|
|
122
|
520 //hostnameをセット。
|
|
82
|
521 setMyHostName(getLocalHostName(channel));
|
|
|
522
|
|
122
|
523 //XMLを生成。送信コマンドにセット。
|
|
164
|
524 SessionXMLEncoder encoder = new SessionXMLEncoder(sessionList);
|
|
77
|
525 String string = encoder.sessionListToXML();
|
|
|
526 command.setString(string);
|
|
|
527
|
|
122
|
528 //SM_JOINコマンドを送信。
|
|
186
|
529 channel.write(command);
|
|
122
|
530 //SessionManagerのListに追加。
|
|
77
|
531 smList.add(channel);
|
|
|
532 }
|
|
2
|
533
|
|
250
|
534 private String getLocalHostName(REPSocketChannel channel) {
|
|
74
|
535 String host = null;
|
|
|
536 host = channel.socket().getLocalAddress().getHostName();
|
|
|
537 return host;
|
|
|
538 }
|
|
|
539
|
|
250
|
540 public void selectSession(SelectButtonEvent event) {
|
|
|
541 REPSocketChannel<REPCommand> channel = event.getEditorChannel();
|
|
|
542 int sid = event.getSID();
|
|
|
543 int eid = event.getEID();
|
|
164
|
544 Session session = getSession(sid);
|
|
227
|
545
|
|
250
|
546 Editor editor = editorList.get(eid);
|
|
227
|
547 if(editor == null){
|
|
|
548 System.out.println("SessionManager.selectSession():editor = " + editor);
|
|
|
549 return;
|
|
|
550 }
|
|
|
551
|
|
|
552 session.addEditor(editor);
|
|
|
553
|
|
|
554 System.out.println(session.hasOwner());
|
|
158
|
555 if(session.hasOwner()){
|
|
107
|
556 REPCommand sendCommand = new REPCommand();
|
|
|
557 sendCommand.setCMD(REP.SMCMD_JOIN_ACK);
|
|
148
|
558 sendCommand.setEID(editor.getEID());
|
|
107
|
559 sendCommand.setSID(sid);
|
|
186
|
560 channel.write(sendCommand);
|
|
107
|
561 }else {
|
|
250
|
562 sid = event.getSID();
|
|
227
|
563 editor = new Editor(channel);
|
|
107
|
564 editor.setHost(myHost);
|
|
164
|
565 session = getSession(sid);
|
|
107
|
566 session.addEditor(editor);
|
|
|
567
|
|
158
|
568 Editor owner = session.getOwner();
|
|
107
|
569
|
|
|
570 REPCommand command = new REPCommand();
|
|
|
571 command.setCMD(REP.SMCMD_SELECT);
|
|
|
572 command.setSID(sid);
|
|
178
|
573 command.setString(editor.getHost());
|
|
107
|
574 owner.send(command);
|
|
|
575 }
|
|
8
|
576 }
|
|
122
|
577
|
|
144
|
578 public void addWaitingCommand(PacketSet set) {
|
|
212
|
579 waitingCommandInMerge.add(set);
|
|
144
|
580 }
|
|
148
|
581
|
|
257
|
582 private List<Session> getSessionList() {
|
|
185
|
583 return sessionList;
|
|
|
584 }
|
|
|
585
|
|
257
|
586 private List<Editor> getEditorList() {
|
|
185
|
587 return editorList;
|
|
|
588 }
|
|
|
589
|
|
222
|
590 public void buttonPressed(SessionManagerEvent event) {
|
|
|
591 try {
|
|
|
592 waitingQueue.put(event);
|
|
|
593 } catch (InterruptedException e) {}
|
|
|
594 selector.wakeup();
|
|
|
595 }
|
|
|
596
|
|
0
|
597 }
|
