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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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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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83
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60 gui = new SessionManagerGUI();
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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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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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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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162 gui.setComboEditor(editor.getEID(), channel);
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163 }
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164
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165
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166 break;
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144
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167
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1
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168 case REP.SMCMD_JOIN_ACK:
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144
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169
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1
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170 break;
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144
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171
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0
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172 case REP.SMCMD_PUT:
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164
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173 {
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174 //エディタのリストに追加
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175 Editor editor = new Editor(editorList.size(), channel);
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176 editorList.add(editor);
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177
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178 //Sessionを生成
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179 int sid = sessionList.size();
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180 editor = new Editor(0, channel);
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181 editor.setHost(myHost);
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182 Session session = new Session(sid, editor);
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183 session.hasOwner(true);
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184 sessionList.add(new Session(sid, editor));
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185
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186 //GUIに反映
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178
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187 //gui.update();ぐらいで
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164
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188 gui.setComboSession(session.getSID(), session.getName());
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189 gui.setComboEditor(editor.getEID(), editor.getChannel());
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158
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190
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164
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191 //エディタにAckを送信
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192 sendCommand.setCMD(REP.SMCMD_PUT_ACK);
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193 sendCommand.setEID(editor.getEID());
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194 sendCommand.setSID(session.getSID());
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195 editor.send(sendCommand);
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144
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196
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164
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197 //他のSessionManagerへSessionの追加を報告
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198 SessionXMLEncoder sessionEncoder = new SessionXMLEncoder(session);
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199 REPCommand command = new REPCommand();
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200 command.setSID(session.getSID());
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201 command.setString(sessionEncoder.sessionListToXML());
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202 command.setCMD(REP.SMCMD_UPDATE);
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203 smList.sendExcept(channel, command);
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204
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205 }
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206
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207 break;
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133
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208
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0
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209 case REP.SMCMD_SELECT:
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164
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210 {
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178
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211 //他のSessionManagerをエディタとしてSessionに追加
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164
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212 Editor editor = new Editor(channel);
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213 Session session = getSession(receivedCommand.sid);
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214 session.addEditor(editor);
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215
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216 if(session.hasOwner()){
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217 //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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218 sendCommand.setCMD(REP.SMCMD_SELECT_ACK);
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219 sendCommand.setEID(editor.getEID());
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220 editor.send(sendCommand);
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221 }else{
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222 //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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223 Editor owner = session.getOwner();
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224 owner.send(receivedCommand);
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148
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225 }
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164
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226 }
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144
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227
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164
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228 break;
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144
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229
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8
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230 case REP.SMCMD_SELECT_ACK:
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160
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231 {
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85
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232 String hostport = receivedCommand.string;
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160
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233 Editor editor = getEditor(hostport);
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164
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234
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160
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235 if(editor != null) {
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236 //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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237 REPCommand command = new REPCommand();
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238 command.setCMD(REP.SMCMD_JOIN_ACK);
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239 command.setSID(receivedCommand.sid);
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240 command.setEID(receivedCommand.eid);
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241 editor.send(command);
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164
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242
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85
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243 }else{
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160
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244 //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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245 smList.sendExcept(channel, receivedCommand);
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246 }
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160
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247 }
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144
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248
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164
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249 break;
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144
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250
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8
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251 case REP.SMCMD_SM_JOIN:
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164
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252
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160
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253 {
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122
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254 //SessionManagerのリストへ追加
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83
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255 smList.add(channel);
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144
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256
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122
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257 //XMLからSessionListオブジェクトを生成する。
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77
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258 SessionXMLDecoder decoder = new SessionXMLDecoder();
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79
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259 SessionList receivedSessionList = decoder.decode(receivedCommand.string);
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144
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260
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122
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261 //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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262 //sessionlist.update(channel, receivedSessionList);
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144
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263
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122
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264 //myHost を設定。
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178
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265 //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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266 if(myHost == null) setMyHostName(getLocalHostName(channel));
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144
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267
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122
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268 //maxHost を設定。
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95
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269 if(setMaxHost(channel, receivedSessionList.getMaxHost())){
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270 sendCommand = new REPCommand();
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271 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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272 sendCommand.setString(maxHost);
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273 smList.sendExcept(channel, sendCommand);
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274 }
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144
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275
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122
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276 //SessionListからXMLを生成。
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277 //joinしてきたSessionManagerに対してACKを送信。
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164
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278 SessionXMLEncoder sessionlistEncoder = new SessionXMLEncoder(sessionList);
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78
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279 sendCommand = new REPCommand();
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280 sendCommand.setCMD(REP.SMCMD_SM_JOIN_ACK);
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281 sendCommand.setString(sessionlistEncoder.sessionListToXML());
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178
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282 send.write(sendCommand);
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144
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283
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122
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284 //その他の SessionManager に対して SMCMD_UPDATEを 送信。
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78
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285 sendCommand = new REPCommand();
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83
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286 sendCommand.setCMD(REP.SMCMD_UPDATE);
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78
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287 sendCommand.setString(receivedCommand.string);
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288 smList.sendExcept(channel, sendCommand);
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144
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289
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160
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290 }
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164
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291 break;
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144
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292
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8
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293 case REP.SMCMD_SM_JOIN_ACK:
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144
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294
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122
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295 //XMLからSessionListオブジェクトを生成。
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82
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296 SessionXMLDecoder decoder2 = new SessionXMLDecoder();
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297 SessionList receivedSessionList2 = decoder2.decode(receivedCommand.string);
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144
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298
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122
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299 //maxHostを決定。
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95
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300 if(setMaxHost(channel, receivedSessionList2.getMaxHost())){
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301 sendCommand = new REPCommand();
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302 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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303 sendCommand.setString(maxHost);
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304 smList.sendExcept(channel, sendCommand);
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305 }
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144
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306
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6
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307 break;
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144
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308
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8
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309 case REP.SMCMD_UPDATE:
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144
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310
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99
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311 SessionXMLDecoder decoder3 = new SessionXMLDecoder();
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312 SessionList receivedSessionList3 = decoder3.decode(receivedCommand.string);
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144
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313
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122
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314 //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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315 //sessionlist.update(channel, receivedSessionList3);
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179
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316 sessionList.add(new Session(new Editor(channel)));
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178
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317
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99
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318 smList.sendExcept(channel, receivedCommand);
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144
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319
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100
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320 for(Session session3 : receivedSessionList3.getList()){
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178
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321 //gui.update();
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100
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322 gui.setComboSession(session3.getSID(), session3.getName());
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323 }
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144
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324
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9
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325 break;
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144
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326
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9
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327 case REP.SMCMD_UPDATE_ACK:
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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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144
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336
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83
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337 gui.setComboSession(session.getSID(), session.getName());
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73
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338 }
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75
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339 smList.sendToSlave(receivedCommand);
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1
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340 break;
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144
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341
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95
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342 case REP.SMCMD_CH_MASTER:
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122
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343 //maxHost を設定。
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95
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344 if(setMaxHost(channel, receivedCommand.string)){
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345 sendCommand = new REPCommand();
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346 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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347 sendCommand.setString(maxHost);
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348 smList.sendExcept(channel, sendCommand);
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349 }
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350 break;
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144
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351
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0
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352 default:
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164
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353 {
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144
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354 //sid から Session を取得
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158
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355 Session session = getSession(receivedCommand.sid);
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144
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356 //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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357 session.translate(channel, receivedCommand);
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164
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358
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178
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359
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167
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360 Editor editor = session.getEditor(channel);
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361 Editor prevEditor = session.getPrevEditor(editor);
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362
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179
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363 //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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364 if(editor.isMerging()){
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365 //Handlerを切り替える
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167
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366 setMergeState(prevEditor.getChannel(), session.getSID());
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169
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367 }else {
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178
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368 setNormalState(prevEditor.getChannel(), session.getSID());
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164
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369 }
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370 }
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144
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371 break;
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372 }
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373 }
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374
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169
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375 private void setNormalState(REPSocketChannel<REPCommand> channel, int sid) {
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376 SelectionKey key = channel.keyFor(selector);
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377 key.attach(new REPHandlerImpl(sid, this));
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378 }
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379
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167
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380 private void setMergeState(REPSocketChannel<REPCommand> channel, int sid) {
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381 SelectionKey key = channel.keyFor(selector);
|
|
|
382 key.attach(new REPHandlerInMerge(sid, this));
|
|
164
|
383 }
|
|
|
384
|
|
160
|
385 private Editor getEditor(String hostport) {
|
|
178
|
386 for(Editor editor : editorList){
|
|
|
387 if(editor.getHost() == hostport){
|
|
|
388 return editor;
|
|
|
389 }
|
|
|
390 }
|
|
|
391 return null;
|
|
|
392 }
|
|
|
393
|
|
|
394 public Editor getEditor(REPSocketChannel channel){
|
|
|
395 for(Editor editor : editorList){
|
|
|
396 if(editor.getChannel() == channel){
|
|
|
397 return editor;
|
|
|
398 }
|
|
|
399 }
|
|
160
|
400 return null;
|
|
|
401 }
|
|
|
402
|
|
144
|
403 private Session getSession(int sid) {
|
|
|
404 for(Session session : sessionList){
|
|
|
405 if(session.getSID() == sid) return session;
|
|
|
406 }
|
|
|
407 return null;
|
|
0
|
408 }
|
|
83
|
409
|
|
139
|
410 private boolean setMaxHost(REPSocketChannel channel, String maxHost2) {
|
|
179
|
411 if(maxHost.compareTo(maxHost2) > 0){
|
|
|
412 return false;
|
|
|
413 }else{
|
|
|
414 maxHost = maxHost2;
|
|
|
415 return true;
|
|
|
416 }
|
|
139
|
417 }
|
|
|
418
|
|
76
|
419 private void setMyHostName(String localHostName) {
|
|
95
|
420 myHost = localHostName + temp_port;
|
|
81
|
421 if(maxHost == null) {
|
|
|
422 maxHost = myHost;
|
|
|
423 }
|
|
164
|
424 setHostToEditor(myHost);
|
|
|
425 }
|
|
|
426
|
|
|
427 private void setHostToEditor(String myHost2) {
|
|
|
428 for(Editor editor : editorList){
|
|
|
429 editor.setHost(myHost2);
|
|
|
430 }
|
|
76
|
431 }
|
|
0
|
432
|
|
|
433 public static void main(String[] args) throws InterruptedException, IOException {
|
|
101
|
434 int port = DEFAULT_PORT;
|
|
|
435 int port_s = DEFAULT_PORT;
|
|
113
|
436 //System.setProperty("file.encoding", "UTF-8");
|
|
82
|
437 if(args.length > 0){
|
|
39
|
438 port = Integer.parseInt(args[0]);
|
|
95
|
439 port_s = Integer.parseInt(args[1]);
|
|
0
|
440 }
|
|
95
|
441 temp_port = port;
|
|
|
442 send_port = port_s;
|
|
0
|
443 SessionManager sm = new SessionManager(port);
|
|
2
|
444 sm.openSelector();
|
|
|
445 sm.openWindow();
|
|
155
|
446 sm.init(port);
|
|
|
447 sm.mainLoop();
|
|
0
|
448 }
|
|
|
449
|
|
2
|
450 private void openWindow() {
|
|
83
|
451 Thread th = new Thread( gui );
|
|
2
|
452 th.start();
|
|
83
|
453 gui.addConnectionListener(this);
|
|
|
454 gui.addREPActionListener(this);
|
|
2
|
455 }
|
|
|
456
|
|
178
|
457 public void connectSession(String host) {
|
|
101
|
458 int port = DEFAULT_PORT;
|
|
95
|
459 port = send_port;
|
|
1
|
460 InetSocketAddress addr = new InetSocketAddress(host, port);
|
|
|
461 try {
|
|
164
|
462 REPSocketChannel<REPCommand> sessionchannel = REPSocketChannel.<REPCommand>create();
|
|
1
|
463 sessionchannel.configureBlocking(true);
|
|
|
464 sessionchannel.connect(addr);
|
|
6
|
465 while(!sessionchannel.finishConnect()){
|
|
77
|
466 System.out.print("test afro");
|
|
6
|
467 }
|
|
|
468 System.out.println("");
|
|
2
|
469 registerChannel(selector, sessionchannel, SelectionKey.OP_READ);
|
|
45
|
470
|
|
77
|
471 sm_join(sessionchannel);
|
|
45
|
472
|
|
1
|
473 }catch (IOException e) {
|
|
|
474 e.printStackTrace();
|
|
|
475 }
|
|
|
476 }
|
|
77
|
477
|
|
164
|
478 private void sm_join(REPSocketChannel<REPCommand> channel){
|
|
79
|
479
|
|
122
|
480 //SM_JOINコマンドを生成。
|
|
77
|
481 REPCommand command = new REPCommand();
|
|
|
482 command.setCMD(REP.SMCMD_SM_JOIN);
|
|
79
|
483
|
|
122
|
484 //hostnameをセット。
|
|
82
|
485 setMyHostName(getLocalHostName(channel));
|
|
|
486
|
|
122
|
487 //XMLを生成。送信コマンドにセット。
|
|
164
|
488 SessionXMLEncoder encoder = new SessionXMLEncoder(sessionList);
|
|
77
|
489 String string = encoder.sessionListToXML();
|
|
|
490 command.setString(string);
|
|
|
491
|
|
122
|
492 //SM_JOINコマンドを送信。
|
|
77
|
493 REPPacketSend send = new REPPacketSend(channel);
|
|
|
494 send.send(command);
|
|
|
495
|
|
122
|
496 //SessionManagerのListに追加。
|
|
77
|
497 smList.add(channel);
|
|
|
498 }
|
|
2
|
499
|
|
139
|
500 private String getLocalHostName(REPSocketChannel channel) {
|
|
74
|
501 String host = null;
|
|
|
502 host = channel.socket().getLocalAddress().getHostName();
|
|
|
503 return host;
|
|
|
504 }
|
|
|
505
|
|
2
|
506 public void connectionOccured(ConnectionEvent event) {
|
|
178
|
507 try {
|
|
|
508 waitingQueue.put(event);
|
|
|
509 } catch (InterruptedException e) {
|
|
|
510 }
|
|
|
511 selector.wakeup();
|
|
2
|
512 }
|
|
8
|
513
|
|
|
514 public void ActionOccured(REPActionEvent event) {
|
|
104
|
515
|
|
163
|
516 REPSocketChannel<REPCommand> channel = event.getEditorChannel();
|
|
107
|
517 int sid = event.getSID();
|
|
164
|
518 Session session = getSession(sid);
|
|
158
|
519 if(session.hasOwner()){
|
|
148
|
520 Editor editor = new Editor(channel);
|
|
|
521 session.addEditor(new Editor(channel));
|
|
107
|
522 REPCommand sendCommand = new REPCommand();
|
|
|
523 sendCommand.setCMD(REP.SMCMD_JOIN_ACK);
|
|
148
|
524 sendCommand.setEID(editor.getEID());
|
|
107
|
525 sendCommand.setSID(sid);
|
|
|
526 REPPacketSend sender = new REPPacketSend(channel);
|
|
|
527 sender.send(sendCommand);
|
|
|
528 }else {
|
|
164
|
529 REPSocketChannel<REPCommand> editorChannel = event.getEditorChannel();
|
|
107
|
530 sid = event.getSID();
|
|
|
531 Editor editor = new Editor(editorChannel);
|
|
|
532 editor.setHost(myHost);
|
|
164
|
533 session = getSession(sid);
|
|
107
|
534 session.addEditor(editor);
|
|
|
535
|
|
158
|
536 Editor owner = session.getOwner();
|
|
107
|
537
|
|
|
538 REPCommand command = new REPCommand();
|
|
|
539 command.setCMD(REP.SMCMD_SELECT);
|
|
|
540 command.setSID(sid);
|
|
178
|
541 command.setString(editor.getHost());
|
|
107
|
542 owner.send(command);
|
|
|
543 }
|
|
72
|
544
|
|
|
545
|
|
8
|
546 }
|
|
122
|
547
|
|
144
|
548 public void addWaitingCommand(PacketSet set) {
|
|
155
|
549 packetSetList.add(set);
|
|
144
|
550 }
|
|
148
|
551
|
|
0
|
552 }
|
