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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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192
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13 import java.util.concurrent.LinkedBlockingQueue;
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0
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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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24
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1
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25 //+-------+--------+--------+-------+--------+---------+------+
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26 //| cmd | session| editor | seqid | lineno | textsiz | text |
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27 //| | id | id | | | | |
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28 //+-------+--------+--------+-------+--------+---------+------+
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29 //o-------header section (network order)-------------o
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30 /*int cmd; // command
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101
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31 int sid; // session ID : uniqu to editing file
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123
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32 int eid; // editor ID : owner editor ID = 1。Session に対して unique
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33 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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34 int lineno; // line number
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101
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35 int textsize; // textsize : bytesize
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1
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36 byte[] text;*/
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37
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8
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38 public class SessionManager implements ConnectionListener, REPActionListener{
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39
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40
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163
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41 //private SessionList sessionlist;
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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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191
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44 private REPSelector 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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21
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47 private boolean isMaster = true;
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160
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48 //private EditorList ownEditorList;
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144
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49 private List<Editor> editorList;
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78
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50 private String maxHost;
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148
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51 private boolean isSimulation;
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155
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52 private List<PacketSet> packetSetList;
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178
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53 private BlockingQueue<SessionManagerEvent> waitingQueue;
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163
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54 //private List<SessionManagerNode> managerList;
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95
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55 private static int temp_port;
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56 private static int send_port;
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101
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57
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58 static final int DEFAULT_PORT = 8766;
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59
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2
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60 public SessionManager(int port) {
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191
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61
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2
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62 }
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63
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64 public void openSelector() throws IOException{
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191
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65 selector = REPSelector.create();
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2
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66 }
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0
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67
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155
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68 public void init(int port) throws InterruptedException, IOException {
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2
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69
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186
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70 REPServerSocketChannel<REPCommand> ssc = REPServerSocketChannel.<REPCommand>open(new REPCommandPacker());
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71 ssc.configureBlocking(false); //reuse address 必須
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72 ssc.socket().setReuseAddress(true);
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192
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73 ssc.socket().bind(new InetSocketAddress("localhost", port));
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74 ssc.register(selector, SelectionKey.OP_ACCEPT, new REPHandlerImpl(-1, this));
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75 //registerChannel(selector, ssc, SelectionKey.OP_ACCEPT);
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6
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76
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77
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163
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78 //sessionlist = new SessionList();
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79 sessionList = new LinkedList<Session>();
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80 smList = new SessionManagerList();
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162
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81 //ownEditorList = new EditorList();
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82 editorList = new LinkedList<Editor>();
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83 packetSetList = new LinkedList<PacketSet>();
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0
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84
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192
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85 waitingQueue = new LinkedBlockingQueue<SessionManagerEvent>();
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155
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86 // main loop
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191
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87 //mainLoop();
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155
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88 }
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89
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90 private void mainLoop() throws IOException {
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0
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91 while(true){
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178
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92 if(checkSend()){
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93 if(selector.selectNow() > 0){
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94 select();
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95 }
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96 continue;
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97 }
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98 selector.select();
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144
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99 select();
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100 }
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101 }
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102
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178
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103 private boolean checkSend() {
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104 for(Iterator<PacketSet> it = packetSetList.iterator(); it.hasNext();){
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105 PacketSet p = it.next();
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106 if(p.getEditor().isMerging()) {
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107 continue;
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108 }else{
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109 manage(p.channel, p.command);
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110 it.remove();
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111 }
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112 }
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113 return false;
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114 }
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115
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144
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116 private void select() throws IOException {
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178
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117 SessionManagerEvent e = waitingQueue.poll();
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118 if(e != null) {
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119 e.exec();
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120 }
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148
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121 for(SelectionKey key : selector.selectedKeys()){
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144
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122 if(key.isAcceptable()){
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123 /*** serverChannelはenableになったSelectionKeyのchannel ***/
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146
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124 REPServerSocketChannel serverChannel = (REPServerSocketChannel)key.channel();
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173
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125 REPSocketChannel channel = serverChannel.accept1(); //keyからchannelを取って、accept
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144
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126 registerChannel (selector, channel, SelectionKey.OP_READ);
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127 channel = null;
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123
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128
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144
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129 }else if(key.isReadable()){
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130
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146
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131 REPHandler handler = (REPHandler)key.attachment();
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132 handler.handle(key);
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144
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133
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134 }else if(key.isConnectable()){
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135 System.out.println("Connectable");
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136 }
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137 }
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138 }
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1
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139
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178
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140 private void registerChannel(Selector selector, SelectableChannel channel, int ops) throws IOException {
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2
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141 if(channel == null) {
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142 return;
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143 }
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144 channel.configureBlocking(false);
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170
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145 REPHandler handler = new REPHandlerImpl(-1, this);
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148
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146 channel.register(selector, ops, handler);
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2
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147 }
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148
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144
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149 public void manage(REPSocketChannel<REPCommand> channel, REPCommand receivedCommand) {
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75
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150 if(receivedCommand == null) return;
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158
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151 //Session session;
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141
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152 REPCommand sendCommand = new REPCommand(receivedCommand);
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153 REPSocketChannel<REPCommand> send = channel;
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154
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75
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155 switch(receivedCommand.cmd){
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144
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156
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0
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157 case REP.SMCMD_JOIN:
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164
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158 {
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159 //どのSessionにも属さないエディタをリストに追加
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160 Editor editor = new Editor(editorList.size(), channel);
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161 editor.setHost(myHost);
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162 editorList.add(editor);
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163
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164
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164 //GUIに反映
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182
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165 //gui.setComboEditor(editor.getEID(), channel);
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166 gui.update();
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164
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167 }
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168
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169
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170 break;
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144
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171
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1
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172 case REP.SMCMD_JOIN_ACK:
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144
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173
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1
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174 break;
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144
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175
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0
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176 case REP.SMCMD_PUT:
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164
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177 {
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178 //エディタのリストに追加
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179 Editor editor = new Editor(editorList.size(), channel);
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180 editorList.add(editor);
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181
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182 //Sessionを生成
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183 int sid = sessionList.size();
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184 editor = new Editor(0, channel);
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185 editor.setHost(myHost);
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186 Session session = new Session(sid, editor);
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187 session.hasOwner(true);
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188 sessionList.add(new Session(sid, editor));
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189
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190 //GUIに反映
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178
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191 //gui.update();ぐらいで
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164
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192 gui.setComboSession(session.getSID(), session.getName());
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193 gui.setComboEditor(editor.getEID(), editor.getChannel());
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158
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194
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164
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195 //エディタにAckを送信
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196 sendCommand.setCMD(REP.SMCMD_PUT_ACK);
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197 sendCommand.setEID(editor.getEID());
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198 sendCommand.setSID(session.getSID());
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199 editor.send(sendCommand);
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200
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164
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201 //他のSessionManagerへSessionの追加を報告
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202 SessionXMLEncoder sessionEncoder = new SessionXMLEncoder(session);
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203 REPCommand command = new REPCommand();
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204 command.setSID(session.getSID());
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205 command.setString(sessionEncoder.sessionListToXML());
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206 command.setCMD(REP.SMCMD_UPDATE);
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207 smList.sendExcept(channel, command);
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208
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209 }
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210
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211 break;
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133
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212
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0
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213 case REP.SMCMD_SELECT:
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164
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214 {
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178
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215 //他のSessionManagerをエディタとしてSessionに追加
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164
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216 Editor editor = new Editor(channel);
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217 Session session = getSession(receivedCommand.sid);
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218 session.addEditor(editor);
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219
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220 if(session.hasOwner()){
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221 //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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222 sendCommand.setCMD(REP.SMCMD_SELECT_ACK);
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223 sendCommand.setEID(editor.getEID());
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224 editor.send(sendCommand);
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225 }else{
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226 //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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227 Editor owner = session.getOwner();
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228 owner.send(receivedCommand);
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148
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229 }
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164
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230 }
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144
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231
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164
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232 break;
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144
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233
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8
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234 case REP.SMCMD_SELECT_ACK:
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160
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235 {
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85
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236 String hostport = receivedCommand.string;
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160
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237 Editor editor = getEditor(hostport);
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164
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238
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160
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239 if(editor != null) {
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240 //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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241 REPCommand command = new REPCommand();
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242 command.setCMD(REP.SMCMD_JOIN_ACK);
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243 command.setSID(receivedCommand.sid);
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244 command.setEID(receivedCommand.eid);
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245 editor.send(command);
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164
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246
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85
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247 }else{
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160
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248 //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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249 smList.sendExcept(channel, receivedCommand);
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250 }
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160
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251 }
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144
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252
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164
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253 break;
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144
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254
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8
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255 case REP.SMCMD_SM_JOIN:
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164
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256
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160
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257 {
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122
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258 //SessionManagerのリストへ追加
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83
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259 smList.add(channel);
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144
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260
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122
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261 //XMLからSessionListオブジェクトを生成する。
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77
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262 SessionXMLDecoder decoder = new SessionXMLDecoder();
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79
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263 SessionList receivedSessionList = decoder.decode(receivedCommand.string);
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144
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264
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122
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265 //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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266 //sessionlist.update(channel, receivedSessionList);
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144
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267
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122
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268 //myHost を設定。
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178
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269 //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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270 if(myHost == null) setMyHostName(getLocalHostName(channel));
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144
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271
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122
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272 //maxHost を設定。
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95
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273 if(setMaxHost(channel, receivedSessionList.getMaxHost())){
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274 sendCommand = new REPCommand();
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275 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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276 sendCommand.setString(maxHost);
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277 smList.sendExcept(channel, sendCommand);
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278 }
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144
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279
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122
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280 //SessionListからXMLを生成。
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281 //joinしてきたSessionManagerに対してACKを送信。
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164
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282 SessionXMLEncoder sessionlistEncoder = new SessionXMLEncoder(sessionList);
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78
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283 sendCommand = new REPCommand();
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284 sendCommand.setCMD(REP.SMCMD_SM_JOIN_ACK);
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285 sendCommand.setString(sessionlistEncoder.sessionListToXML());
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178
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286 send.write(sendCommand);
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144
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287
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122
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288 //その他の SessionManager に対して SMCMD_UPDATEを 送信。
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78
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289 sendCommand = new REPCommand();
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83
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290 sendCommand.setCMD(REP.SMCMD_UPDATE);
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78
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291 sendCommand.setString(receivedCommand.string);
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292 smList.sendExcept(channel, sendCommand);
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144
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293
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160
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294 }
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164
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295 break;
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144
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296
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8
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297 case REP.SMCMD_SM_JOIN_ACK:
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144
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298
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122
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299 //XMLからSessionListオブジェクトを生成。
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82
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300 SessionXMLDecoder decoder2 = new SessionXMLDecoder();
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301 SessionList receivedSessionList2 = decoder2.decode(receivedCommand.string);
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144
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302
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122
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303 //maxHostを決定。
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95
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304 if(setMaxHost(channel, receivedSessionList2.getMaxHost())){
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305 sendCommand = new REPCommand();
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306 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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307 sendCommand.setString(maxHost);
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308 smList.sendExcept(channel, sendCommand);
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309 }
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144
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310
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6
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311 break;
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144
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312
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8
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313 case REP.SMCMD_UPDATE:
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144
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314
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99
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315 SessionXMLDecoder decoder3 = new SessionXMLDecoder();
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316 SessionList receivedSessionList3 = decoder3.decode(receivedCommand.string);
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144
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317
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122
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318 //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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319 //sessionlist.update(channel, receivedSessionList3);
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179
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320 sessionList.add(new Session(new Editor(channel)));
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178
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321
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99
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322 smList.sendExcept(channel, receivedCommand);
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144
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323
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100
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324 for(Session session3 : receivedSessionList3.getList()){
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178
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325 //gui.update();
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100
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326 gui.setComboSession(session3.getSID(), session3.getName());
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327 }
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144
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328
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9
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329 break;
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144
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330
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9
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331 case REP.SMCMD_UPDATE_ACK:
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164
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332 if(receivedCommand.sid > sessionList.size()){
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148
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333 Editor editor = new Editor(channel);
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75
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334 editor.setName(receivedCommand.string);
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144
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335
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158
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336 Session session = new Session(editor);
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73
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337 session.addEditor(editor);
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144
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338
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164
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339 sessionList.add(session);
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144
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340
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83
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341 gui.setComboSession(session.getSID(), session.getName());
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73
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342 }
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75
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343 smList.sendToSlave(receivedCommand);
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1
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344 break;
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144
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345
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95
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346 case REP.SMCMD_CH_MASTER:
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122
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347 //maxHost を設定。
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95
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348 if(setMaxHost(channel, receivedCommand.string)){
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349 sendCommand = new REPCommand();
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350 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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351 sendCommand.setString(maxHost);
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352 smList.sendExcept(channel, sendCommand);
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353 }
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354 break;
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144
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355
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0
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356 default:
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164
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357 {
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144
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358 //sid から Session を取得
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158
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359 Session session = getSession(receivedCommand.sid);
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144
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360 //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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361 session.translate(channel, receivedCommand);
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164
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362
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178
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363
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167
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364 Editor editor = session.getEditor(channel);
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365 Editor prevEditor = session.getPrevEditor(editor);
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366
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179
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367 //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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368 if(editor.isMerging()){
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369 //Handlerを切り替える
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167
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370 setMergeState(prevEditor.getChannel(), session.getSID());
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169
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371 }else {
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178
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372 setNormalState(prevEditor.getChannel(), session.getSID());
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164
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373 }
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374 }
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144
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375 break;
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376 }
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377 }
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378
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169
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379 private void setNormalState(REPSocketChannel<REPCommand> channel, int sid) {
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380 SelectionKey key = channel.keyFor(selector);
|
|
|
381 key.attach(new REPHandlerImpl(sid, this));
|
|
|
382 }
|
|
|
383
|
|
167
|
384 private void setMergeState(REPSocketChannel<REPCommand> channel, int sid) {
|
|
|
385 SelectionKey key = channel.keyFor(selector);
|
|
|
386 key.attach(new REPHandlerInMerge(sid, this));
|
|
164
|
387 }
|
|
|
388
|
|
160
|
389 private Editor getEditor(String hostport) {
|
|
178
|
390 for(Editor editor : editorList){
|
|
|
391 if(editor.getHost() == hostport){
|
|
|
392 return editor;
|
|
|
393 }
|
|
|
394 }
|
|
|
395 return null;
|
|
|
396 }
|
|
|
397
|
|
|
398 public Editor getEditor(REPSocketChannel channel){
|
|
|
399 for(Editor editor : editorList){
|
|
|
400 if(editor.getChannel() == channel){
|
|
|
401 return editor;
|
|
|
402 }
|
|
|
403 }
|
|
160
|
404 return null;
|
|
|
405 }
|
|
|
406
|
|
144
|
407 private Session getSession(int sid) {
|
|
|
408 for(Session session : sessionList){
|
|
|
409 if(session.getSID() == sid) return session;
|
|
|
410 }
|
|
|
411 return null;
|
|
0
|
412 }
|
|
83
|
413
|
|
139
|
414 private boolean setMaxHost(REPSocketChannel channel, String maxHost2) {
|
|
179
|
415 if(maxHost.compareTo(maxHost2) > 0){
|
|
|
416 return false;
|
|
|
417 }else{
|
|
|
418 maxHost = maxHost2;
|
|
|
419 return true;
|
|
|
420 }
|
|
139
|
421 }
|
|
|
422
|
|
76
|
423 private void setMyHostName(String localHostName) {
|
|
95
|
424 myHost = localHostName + temp_port;
|
|
81
|
425 if(maxHost == null) {
|
|
|
426 maxHost = myHost;
|
|
|
427 }
|
|
164
|
428 setHostToEditor(myHost);
|
|
|
429 }
|
|
|
430
|
|
|
431 private void setHostToEditor(String myHost2) {
|
|
|
432 for(Editor editor : editorList){
|
|
|
433 editor.setHost(myHost2);
|
|
|
434 }
|
|
76
|
435 }
|
|
0
|
436
|
|
|
437 public static void main(String[] args) throws InterruptedException, IOException {
|
|
191
|
438
|
|
|
439 REPServerSocketChannel.isSimulation = true;
|
|
|
440
|
|
101
|
441 int port = DEFAULT_PORT;
|
|
|
442 int port_s = DEFAULT_PORT;
|
|
113
|
443 //System.setProperty("file.encoding", "UTF-8");
|
|
82
|
444 if(args.length > 0){
|
|
39
|
445 port = Integer.parseInt(args[0]);
|
|
95
|
446 port_s = Integer.parseInt(args[1]);
|
|
0
|
447 }
|
|
95
|
448 temp_port = port;
|
|
|
449 send_port = port_s;
|
|
0
|
450 SessionManager sm = new SessionManager(port);
|
|
2
|
451 sm.openSelector();
|
|
155
|
452 sm.init(port);
|
|
191
|
453 sm.startGUI(sm);
|
|
155
|
454 sm.mainLoop();
|
|
191
|
455
|
|
0
|
456 }
|
|
|
457
|
|
191
|
458 private void startGUI(SessionManager sm) {
|
|
|
459 gui = new SessionManagerGUI(this);
|
|
83
|
460 Thread th = new Thread( gui );
|
|
2
|
461 th.start();
|
|
|
462 }
|
|
|
463
|
|
178
|
464 public void connectSession(String host) {
|
|
101
|
465 int port = DEFAULT_PORT;
|
|
95
|
466 port = send_port;
|
|
1
|
467 InetSocketAddress addr = new InetSocketAddress(host, port);
|
|
|
468 try {
|
|
186
|
469 REPSocketChannel<REPCommand> sessionchannel = REPSocketChannel.<REPCommand>create(new REPCommandPacker());
|
|
1
|
470 sessionchannel.configureBlocking(true);
|
|
|
471 sessionchannel.connect(addr);
|
|
6
|
472 while(!sessionchannel.finishConnect()){
|
|
77
|
473 System.out.print("test afro");
|
|
6
|
474 }
|
|
|
475 System.out.println("");
|
|
2
|
476 registerChannel(selector, sessionchannel, SelectionKey.OP_READ);
|
|
45
|
477
|
|
77
|
478 sm_join(sessionchannel);
|
|
45
|
479
|
|
1
|
480 }catch (IOException e) {
|
|
|
481 e.printStackTrace();
|
|
|
482 }
|
|
|
483 }
|
|
77
|
484
|
|
164
|
485 private void sm_join(REPSocketChannel<REPCommand> channel){
|
|
79
|
486
|
|
122
|
487 //SM_JOINコマンドを生成。
|
|
77
|
488 REPCommand command = new REPCommand();
|
|
|
489 command.setCMD(REP.SMCMD_SM_JOIN);
|
|
79
|
490
|
|
122
|
491 //hostnameをセット。
|
|
82
|
492 setMyHostName(getLocalHostName(channel));
|
|
|
493
|
|
122
|
494 //XMLを生成。送信コマンドにセット。
|
|
164
|
495 SessionXMLEncoder encoder = new SessionXMLEncoder(sessionList);
|
|
77
|
496 String string = encoder.sessionListToXML();
|
|
|
497 command.setString(string);
|
|
|
498
|
|
122
|
499 //SM_JOINコマンドを送信。
|
|
186
|
500 channel.write(command);
|
|
122
|
501 //SessionManagerのListに追加。
|
|
77
|
502 smList.add(channel);
|
|
|
503 }
|
|
2
|
504
|
|
139
|
505 private String getLocalHostName(REPSocketChannel channel) {
|
|
74
|
506 String host = null;
|
|
|
507 host = channel.socket().getLocalAddress().getHostName();
|
|
|
508 return host;
|
|
|
509 }
|
|
|
510
|
|
2
|
511 public void connectionOccured(ConnectionEvent event) {
|
|
178
|
512 try {
|
|
|
513 waitingQueue.put(event);
|
|
|
514 } catch (InterruptedException e) {
|
|
|
515 }
|
|
|
516 selector.wakeup();
|
|
2
|
517 }
|
|
8
|
518
|
|
|
519 public void ActionOccured(REPActionEvent event) {
|
|
104
|
520
|
|
163
|
521 REPSocketChannel<REPCommand> channel = event.getEditorChannel();
|
|
107
|
522 int sid = event.getSID();
|
|
164
|
523 Session session = getSession(sid);
|
|
158
|
524 if(session.hasOwner()){
|
|
148
|
525 Editor editor = new Editor(channel);
|
|
|
526 session.addEditor(new Editor(channel));
|
|
107
|
527 REPCommand sendCommand = new REPCommand();
|
|
|
528 sendCommand.setCMD(REP.SMCMD_JOIN_ACK);
|
|
148
|
529 sendCommand.setEID(editor.getEID());
|
|
107
|
530 sendCommand.setSID(sid);
|
|
186
|
531 channel.write(sendCommand);
|
|
107
|
532 }else {
|
|
164
|
533 REPSocketChannel<REPCommand> editorChannel = event.getEditorChannel();
|
|
107
|
534 sid = event.getSID();
|
|
|
535 Editor editor = new Editor(editorChannel);
|
|
|
536 editor.setHost(myHost);
|
|
164
|
537 session = getSession(sid);
|
|
107
|
538 session.addEditor(editor);
|
|
|
539
|
|
158
|
540 Editor owner = session.getOwner();
|
|
107
|
541
|
|
|
542 REPCommand command = new REPCommand();
|
|
|
543 command.setCMD(REP.SMCMD_SELECT);
|
|
|
544 command.setSID(sid);
|
|
178
|
545 command.setString(editor.getHost());
|
|
107
|
546 owner.send(command);
|
|
|
547 }
|
|
72
|
548
|
|
|
549
|
|
8
|
550 }
|
|
122
|
551
|
|
144
|
552 public void addWaitingCommand(PacketSet set) {
|
|
155
|
553 packetSetList.add(set);
|
|
144
|
554 }
|
|
148
|
555
|
|
185
|
556 public List<Session> getSessionList() {
|
|
|
557 // TODO Auto-generated method stub
|
|
|
558 return sessionList;
|
|
|
559 }
|
|
|
560
|
|
|
561 public List<Editor> getEditorList() {
|
|
|
562 // TODO Auto-generated method stub
|
|
|
563 return editorList;
|
|
|
564 }
|
|
|
565
|
|
0
|
566 }
|
