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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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198
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15 import javax.swing.SwingUtilities;
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16
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123
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17 import rep.channel.REPServerSocketChannel;
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133
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18 import rep.channel.REPSocketChannel;
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144
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19 import rep.handler.PacketSet;
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146
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20 import rep.handler.REPHandler;
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148
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21 import rep.handler.REPHandlerImpl;
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164
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22 import rep.handler.REPHandlerInMerge;
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158
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23 import rep.channel.REPSelector;
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56
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24 import rep.xml.SessionXMLDecoder;
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45
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25 import rep.xml.SessionXMLEncoder;
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198
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26 import rep.channel.REPSelectionKey;
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27 /*
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1
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28 //+-------+--------+--------+-------+--------+---------+------+
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29 //| cmd | session| editor | seqid | lineno | textsiz | text |
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30 //| | id | id | | | | |
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31 //+-------+--------+--------+-------+--------+---------+------+
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32 //o-------header section (network order)-------------o
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198
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33 int cmd; // command
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101
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34 int sid; // session ID : uniqu to editing file
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123
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35 int eid; // editor ID : owner editor ID = 1。Session に対して unique
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122
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36 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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37 int lineno; // line number
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101
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38 int textsize; // textsize : bytesize
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198
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39 byte[] text;
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40 */
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1
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41
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8
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42 public class SessionManager implements ConnectionListener, REPActionListener{
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0
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43
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164
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44 private LinkedList<Session> sessionList;
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83
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45 private SessionManagerGUI gui;
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198
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46 private REPSelector<REPCommand> selector;
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7
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47 private SessionManagerList smList;
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17
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48 private String myHost;
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21
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49 private boolean isMaster = true;
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144
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50 private List<Editor> editorList;
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78
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51 private String maxHost;
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148
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52 private boolean isSimulation;
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155
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53 private List<PacketSet> packetSetList;
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178
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54 private BlockingQueue<SessionManagerEvent> waitingQueue;
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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 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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191
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60
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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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191
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64 selector = REPSelector.create();
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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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186
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69 REPServerSocketChannel<REPCommand> ssc = REPServerSocketChannel.<REPCommand>open(new REPCommandPacker());
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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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192
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72 ssc.socket().bind(new InetSocketAddress("localhost", port));
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73 ssc.register(selector, SelectionKey.OP_ACCEPT, new REPHandlerImpl(-1, this));
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74 //registerChannel(selector, ssc, SelectionKey.OP_ACCEPT);
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6
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75
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76
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163
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77 //sessionlist = new SessionList();
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144
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78 sessionList = new LinkedList<Session>();
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7
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79 smList = new SessionManagerList();
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162
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80 //ownEditorList = new EditorList();
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144
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81 editorList = new LinkedList<Editor>();
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155
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82 packetSetList = new LinkedList<PacketSet>();
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0
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83
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192
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84 waitingQueue = new LinkedBlockingQueue<SessionManagerEvent>();
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155
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85 // main loop
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191
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86 //mainLoop();
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155
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87 }
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88
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89 private void mainLoop() throws IOException {
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0
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90 while(true){
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178
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91 if(checkSend()){
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92 if(selector.selectNow() > 0){
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93 select();
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94 }
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95 continue;
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96 }
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0
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97 selector.select();
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144
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98 select();
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99 }
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100 }
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101
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178
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102 private boolean checkSend() {
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103 for(Iterator<PacketSet> it = packetSetList.iterator(); it.hasNext();){
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104 PacketSet p = it.next();
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105 if(p.getEditor().isMerging()) {
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106 continue;
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107 }else{
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108 manage(p.channel, p.command);
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109 it.remove();
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110 }
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111 }
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112 return false;
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113 }
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114
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144
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115 private void select() throws IOException {
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178
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116 SessionManagerEvent e = waitingQueue.poll();
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117 if(e != null) {
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118 e.exec();
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119 }
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198
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120 for(REPSelectionKey<REPCommand> key : selector.selectedKeys1()){
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144
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121 if(key.isAcceptable()){
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122 /*** serverChannelはenableになったSelectionKeyのchannel ***/
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199
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123 // REPServerSocketChannel serverChannel = (REPServerSocketChannel)key.channel();
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124 REPSocketChannel<REPCommand> channel = key.accept(new REPCommandPacker());
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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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199
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131 //REPHandler handler = (REPHandler)key.attachment();
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132
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133 //いんちき
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134 REPHandler handler = new REPHandlerImpl(-1, this);
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146
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135 handler.handle(key);
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144
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136
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137 }else if(key.isConnectable()){
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138 System.out.println("Connectable");
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0
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139 }
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140 }
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141 }
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1
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142
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178
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143 private void registerChannel(Selector selector, SelectableChannel channel, int ops) throws IOException {
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2
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144 if(channel == null) {
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145 return;
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146 }
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147 channel.configureBlocking(false);
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170
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148 REPHandler handler = new REPHandlerImpl(-1, this);
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148
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149 channel.register(selector, ops, handler);
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2
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150 }
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151
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144
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152 public void manage(REPSocketChannel<REPCommand> channel, REPCommand receivedCommand) {
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75
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153 if(receivedCommand == null) return;
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158
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154 //Session session;
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141
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155 REPCommand sendCommand = new REPCommand(receivedCommand);
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178
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156 REPSocketChannel<REPCommand> send = channel;
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144
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157
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75
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158 switch(receivedCommand.cmd){
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144
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159
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0
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160 case REP.SMCMD_JOIN:
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164
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161 {
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162 //どのSessionにも属さないエディタをリストに追加
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163 Editor editor = new Editor(editorList.size(), channel);
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164 editor.setHost(myHost);
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165 editorList.add(editor);
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144
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166
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198
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167 //リストのコピーをGUIに渡す
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168 LinkedList<Session> sList = new LinkedList<Session>(sessionList);
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169 LinkedList<Editor> eList = new LinkedList<Editor>(editorList);
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164
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170 //GUIに反映
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198
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171 Runnable doRun = new DoGUIUpdate(sList, eList, gui);
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172 SwingUtilities.invokeLater(doRun);
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199
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173
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164
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174 }
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175
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176 break;
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144
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177
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1
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178 case REP.SMCMD_JOIN_ACK:
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144
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179
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1
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180 break;
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144
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181
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0
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182 case REP.SMCMD_PUT:
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164
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183 {
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184 //エディタのリストに追加
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185 Editor editor = new Editor(editorList.size(), channel);
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186 editorList.add(editor);
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187
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188 //Sessionを生成
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189 int sid = sessionList.size();
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190 editor = new Editor(0, channel);
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191 editor.setHost(myHost);
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192 Session session = new Session(sid, editor);
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193 session.hasOwner(true);
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194 sessionList.add(new Session(sid, editor));
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195
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196 //GUIに反映
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178
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197 //gui.update();ぐらいで
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164
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198 gui.setComboSession(session.getSID(), session.getName());
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199 gui.setComboEditor(editor.getEID(), editor.getChannel());
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158
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200
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164
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201 //エディタにAckを送信
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202 sendCommand.setCMD(REP.SMCMD_PUT_ACK);
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203 sendCommand.setEID(editor.getEID());
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204 sendCommand.setSID(session.getSID());
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205 editor.send(sendCommand);
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144
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206
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164
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207 //他のSessionManagerへSessionの追加を報告
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208 SessionXMLEncoder sessionEncoder = new SessionXMLEncoder(session);
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209 REPCommand command = new REPCommand();
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210 command.setSID(session.getSID());
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211 command.setString(sessionEncoder.sessionListToXML());
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212 command.setCMD(REP.SMCMD_UPDATE);
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213 smList.sendExcept(channel, command);
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214
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215 }
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216
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217 break;
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133
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218
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0
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219 case REP.SMCMD_SELECT:
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164
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220 {
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178
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221 //他のSessionManagerをエディタとしてSessionに追加
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164
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222 Editor editor = new Editor(channel);
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223 Session session = getSession(receivedCommand.sid);
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224 session.addEditor(editor);
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225
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226 if(session.hasOwner()){
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227 //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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228 sendCommand.setCMD(REP.SMCMD_SELECT_ACK);
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229 sendCommand.setEID(editor.getEID());
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230 editor.send(sendCommand);
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231 }else{
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232 //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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233 Editor owner = session.getOwner();
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234 owner.send(receivedCommand);
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148
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235 }
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164
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236 }
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144
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237
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164
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238 break;
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144
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239
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8
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240 case REP.SMCMD_SELECT_ACK:
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160
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241 {
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85
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242 String hostport = receivedCommand.string;
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160
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243 Editor editor = getEditor(hostport);
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164
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244
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160
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245 if(editor != null) {
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246 //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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247 REPCommand command = new REPCommand();
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248 command.setCMD(REP.SMCMD_JOIN_ACK);
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249 command.setSID(receivedCommand.sid);
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250 command.setEID(receivedCommand.eid);
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251 editor.send(command);
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164
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252
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85
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253 }else{
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160
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254 //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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255 smList.sendExcept(channel, receivedCommand);
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256 }
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160
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257 }
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144
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258
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164
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259 break;
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144
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260
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8
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261 case REP.SMCMD_SM_JOIN:
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164
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262
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160
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263 {
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122
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264 //SessionManagerのリストへ追加
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83
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265 smList.add(channel);
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144
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266
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122
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267 //XMLからSessionListオブジェクトを生成する。
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77
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268 SessionXMLDecoder decoder = new SessionXMLDecoder();
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79
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269 SessionList receivedSessionList = decoder.decode(receivedCommand.string);
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144
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270
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122
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271 //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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272 //sessionlist.update(channel, receivedSessionList);
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144
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273
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122
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274 //myHost を設定。
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178
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275 //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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276 if(myHost == null) setMyHostName(getLocalHostName(channel));
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144
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277
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122
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278 //maxHost を設定。
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95
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279 if(setMaxHost(channel, receivedSessionList.getMaxHost())){
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280 sendCommand = new REPCommand();
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281 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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282 sendCommand.setString(maxHost);
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283 smList.sendExcept(channel, sendCommand);
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284 }
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144
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285
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122
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286 //SessionListからXMLを生成。
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287 //joinしてきたSessionManagerに対してACKを送信。
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164
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288 SessionXMLEncoder sessionlistEncoder = new SessionXMLEncoder(sessionList);
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78
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289 sendCommand = new REPCommand();
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290 sendCommand.setCMD(REP.SMCMD_SM_JOIN_ACK);
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291 sendCommand.setString(sessionlistEncoder.sessionListToXML());
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178
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292 send.write(sendCommand);
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144
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293
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122
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294 //その他の SessionManager に対して SMCMD_UPDATEを 送信。
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78
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295 sendCommand = new REPCommand();
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83
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296 sendCommand.setCMD(REP.SMCMD_UPDATE);
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78
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297 sendCommand.setString(receivedCommand.string);
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298 smList.sendExcept(channel, sendCommand);
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144
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299
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160
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300 }
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164
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301 break;
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144
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302
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8
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303 case REP.SMCMD_SM_JOIN_ACK:
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144
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304
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122
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305 //XMLからSessionListオブジェクトを生成。
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82
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306 SessionXMLDecoder decoder2 = new SessionXMLDecoder();
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307 SessionList receivedSessionList2 = decoder2.decode(receivedCommand.string);
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144
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308
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122
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309 //maxHostを決定。
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95
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310 if(setMaxHost(channel, receivedSessionList2.getMaxHost())){
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311 sendCommand = new REPCommand();
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312 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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313 sendCommand.setString(maxHost);
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314 smList.sendExcept(channel, sendCommand);
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315 }
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144
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316
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6
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317 break;
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144
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318
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8
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319 case REP.SMCMD_UPDATE:
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144
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320
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99
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321 SessionXMLDecoder decoder3 = new SessionXMLDecoder();
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322 SessionList receivedSessionList3 = decoder3.decode(receivedCommand.string);
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144
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323
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122
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324 //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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325 //sessionlist.update(channel, receivedSessionList3);
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179
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326 sessionList.add(new Session(new Editor(channel)));
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178
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327
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99
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328 smList.sendExcept(channel, receivedCommand);
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144
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329
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100
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330 for(Session session3 : receivedSessionList3.getList()){
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178
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331 //gui.update();
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100
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332 gui.setComboSession(session3.getSID(), session3.getName());
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333 }
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144
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334
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9
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335 break;
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144
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336
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9
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337 case REP.SMCMD_UPDATE_ACK:
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164
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338 if(receivedCommand.sid > sessionList.size()){
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148
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339 Editor editor = new Editor(channel);
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75
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340 editor.setName(receivedCommand.string);
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144
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341
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158
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342 Session session = new Session(editor);
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73
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343 session.addEditor(editor);
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144
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344
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164
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345 sessionList.add(session);
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144
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346
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83
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347 gui.setComboSession(session.getSID(), session.getName());
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73
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348 }
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75
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349 smList.sendToSlave(receivedCommand);
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1
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350 break;
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144
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351
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95
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352 case REP.SMCMD_CH_MASTER:
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122
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353 //maxHost を設定。
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95
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354 if(setMaxHost(channel, receivedCommand.string)){
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355 sendCommand = new REPCommand();
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356 sendCommand.setCMD(REP.SMCMD_CH_MASTER);
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357 sendCommand.setString(maxHost);
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358 smList.sendExcept(channel, sendCommand);
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359 }
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360 break;
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144
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361
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0
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362 default:
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164
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363 {
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144
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364 //sid から Session を取得
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158
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365 Session session = getSession(receivedCommand.sid);
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144
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366 //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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367 session.translate(channel, receivedCommand);
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164
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368
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178
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369
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167
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370 Editor editor = session.getEditor(channel);
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371 Editor prevEditor = session.getPrevEditor(editor);
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372
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179
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373 //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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374 if(editor.isMerging()){
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375 //Handlerを切り替える
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167
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376 setMergeState(prevEditor.getChannel(), session.getSID());
|
|
169
|
377 }else {
|
|
178
|
378 setNormalState(prevEditor.getChannel(), session.getSID());
|
|
164
|
379 }
|
|
|
380 }
|
|
144
|
381 break;
|
|
|
382 }
|
|
|
383 }
|
|
|
384
|
|
169
|
385 private void setNormalState(REPSocketChannel<REPCommand> channel, int sid) {
|
|
|
386 SelectionKey key = channel.keyFor(selector);
|
|
|
387 key.attach(new REPHandlerImpl(sid, this));
|
|
|
388 }
|
|
|
389
|
|
167
|
390 private void setMergeState(REPSocketChannel<REPCommand> channel, int sid) {
|
|
|
391 SelectionKey key = channel.keyFor(selector);
|
|
|
392 key.attach(new REPHandlerInMerge(sid, this));
|
|
164
|
393 }
|
|
|
394
|
|
160
|
395 private Editor getEditor(String hostport) {
|
|
178
|
396 for(Editor editor : editorList){
|
|
|
397 if(editor.getHost() == hostport){
|
|
|
398 return editor;
|
|
|
399 }
|
|
|
400 }
|
|
|
401 return null;
|
|
|
402 }
|
|
|
403
|
|
|
404 public Editor getEditor(REPSocketChannel channel){
|
|
|
405 for(Editor editor : editorList){
|
|
|
406 if(editor.getChannel() == channel){
|
|
|
407 return editor;
|
|
|
408 }
|
|
|
409 }
|
|
160
|
410 return null;
|
|
|
411 }
|
|
|
412
|
|
144
|
413 private Session getSession(int sid) {
|
|
|
414 for(Session session : sessionList){
|
|
|
415 if(session.getSID() == sid) return session;
|
|
|
416 }
|
|
|
417 return null;
|
|
0
|
418 }
|
|
83
|
419
|
|
139
|
420 private boolean setMaxHost(REPSocketChannel channel, String maxHost2) {
|
|
179
|
421 if(maxHost.compareTo(maxHost2) > 0){
|
|
|
422 return false;
|
|
|
423 }else{
|
|
|
424 maxHost = maxHost2;
|
|
|
425 return true;
|
|
|
426 }
|
|
139
|
427 }
|
|
|
428
|
|
76
|
429 private void setMyHostName(String localHostName) {
|
|
95
|
430 myHost = localHostName + temp_port;
|
|
81
|
431 if(maxHost == null) {
|
|
|
432 maxHost = myHost;
|
|
|
433 }
|
|
164
|
434 setHostToEditor(myHost);
|
|
|
435 }
|
|
|
436
|
|
|
437 private void setHostToEditor(String myHost2) {
|
|
|
438 for(Editor editor : editorList){
|
|
|
439 editor.setHost(myHost2);
|
|
|
440 }
|
|
76
|
441 }
|
|
0
|
442
|
|
|
443 public static void main(String[] args) throws InterruptedException, IOException {
|
|
191
|
444
|
|
|
445 REPServerSocketChannel.isSimulation = true;
|
|
|
446
|
|
101
|
447 int port = DEFAULT_PORT;
|
|
|
448 int port_s = DEFAULT_PORT;
|
|
113
|
449 //System.setProperty("file.encoding", "UTF-8");
|
|
82
|
450 if(args.length > 0){
|
|
39
|
451 port = Integer.parseInt(args[0]);
|
|
95
|
452 port_s = Integer.parseInt(args[1]);
|
|
0
|
453 }
|
|
95
|
454 temp_port = port;
|
|
|
455 send_port = port_s;
|
|
0
|
456 SessionManager sm = new SessionManager(port);
|
|
2
|
457 sm.openSelector();
|
|
155
|
458 sm.init(port);
|
|
191
|
459 sm.startGUI(sm);
|
|
155
|
460 sm.mainLoop();
|
|
191
|
461
|
|
0
|
462 }
|
|
|
463
|
|
191
|
464 private void startGUI(SessionManager sm) {
|
|
|
465 gui = new SessionManagerGUI(this);
|
|
83
|
466 Thread th = new Thread( gui );
|
|
2
|
467 th.start();
|
|
|
468 }
|
|
|
469
|
|
178
|
470 public void connectSession(String host) {
|
|
101
|
471 int port = DEFAULT_PORT;
|
|
95
|
472 port = send_port;
|
|
1
|
473 InetSocketAddress addr = new InetSocketAddress(host, port);
|
|
|
474 try {
|
|
186
|
475 REPSocketChannel<REPCommand> sessionchannel = REPSocketChannel.<REPCommand>create(new REPCommandPacker());
|
|
1
|
476 sessionchannel.configureBlocking(true);
|
|
|
477 sessionchannel.connect(addr);
|
|
6
|
478 while(!sessionchannel.finishConnect()){
|
|
77
|
479 System.out.print("test afro");
|
|
6
|
480 }
|
|
|
481 System.out.println("");
|
|
2
|
482 registerChannel(selector, sessionchannel, SelectionKey.OP_READ);
|
|
45
|
483
|
|
77
|
484 sm_join(sessionchannel);
|
|
45
|
485
|
|
1
|
486 }catch (IOException e) {
|
|
|
487 e.printStackTrace();
|
|
|
488 }
|
|
|
489 }
|
|
77
|
490
|
|
164
|
491 private void sm_join(REPSocketChannel<REPCommand> channel){
|
|
79
|
492
|
|
122
|
493 //SM_JOINコマンドを生成。
|
|
77
|
494 REPCommand command = new REPCommand();
|
|
|
495 command.setCMD(REP.SMCMD_SM_JOIN);
|
|
79
|
496
|
|
122
|
497 //hostnameをセット。
|
|
82
|
498 setMyHostName(getLocalHostName(channel));
|
|
|
499
|
|
122
|
500 //XMLを生成。送信コマンドにセット。
|
|
164
|
501 SessionXMLEncoder encoder = new SessionXMLEncoder(sessionList);
|
|
77
|
502 String string = encoder.sessionListToXML();
|
|
|
503 command.setString(string);
|
|
|
504
|
|
122
|
505 //SM_JOINコマンドを送信。
|
|
186
|
506 channel.write(command);
|
|
122
|
507 //SessionManagerのListに追加。
|
|
77
|
508 smList.add(channel);
|
|
|
509 }
|
|
2
|
510
|
|
139
|
511 private String getLocalHostName(REPSocketChannel channel) {
|
|
74
|
512 String host = null;
|
|
|
513 host = channel.socket().getLocalAddress().getHostName();
|
|
|
514 return host;
|
|
|
515 }
|
|
|
516
|
|
2
|
517 public void connectionOccured(ConnectionEvent event) {
|
|
178
|
518 try {
|
|
|
519 waitingQueue.put(event);
|
|
|
520 } catch (InterruptedException e) {
|
|
|
521 }
|
|
|
522 selector.wakeup();
|
|
2
|
523 }
|
|
8
|
524
|
|
|
525 public void ActionOccured(REPActionEvent event) {
|
|
104
|
526
|
|
163
|
527 REPSocketChannel<REPCommand> channel = event.getEditorChannel();
|
|
107
|
528 int sid = event.getSID();
|
|
164
|
529 Session session = getSession(sid);
|
|
158
|
530 if(session.hasOwner()){
|
|
148
|
531 Editor editor = new Editor(channel);
|
|
|
532 session.addEditor(new Editor(channel));
|
|
107
|
533 REPCommand sendCommand = new REPCommand();
|
|
|
534 sendCommand.setCMD(REP.SMCMD_JOIN_ACK);
|
|
148
|
535 sendCommand.setEID(editor.getEID());
|
|
107
|
536 sendCommand.setSID(sid);
|
|
186
|
537 channel.write(sendCommand);
|
|
107
|
538 }else {
|
|
164
|
539 REPSocketChannel<REPCommand> editorChannel = event.getEditorChannel();
|
|
107
|
540 sid = event.getSID();
|
|
|
541 Editor editor = new Editor(editorChannel);
|
|
|
542 editor.setHost(myHost);
|
|
164
|
543 session = getSession(sid);
|
|
107
|
544 session.addEditor(editor);
|
|
|
545
|
|
158
|
546 Editor owner = session.getOwner();
|
|
107
|
547
|
|
|
548 REPCommand command = new REPCommand();
|
|
|
549 command.setCMD(REP.SMCMD_SELECT);
|
|
|
550 command.setSID(sid);
|
|
178
|
551 command.setString(editor.getHost());
|
|
107
|
552 owner.send(command);
|
|
|
553 }
|
|
72
|
554
|
|
|
555
|
|
8
|
556 }
|
|
122
|
557
|
|
144
|
558 public void addWaitingCommand(PacketSet set) {
|
|
155
|
559 packetSetList.add(set);
|
|
144
|
560 }
|
|
148
|
561
|
|
185
|
562 public List<Session> getSessionList() {
|
|
|
563 // TODO Auto-generated method stub
|
|
|
564 return sessionList;
|
|
|
565 }
|
|
|
566
|
|
|
567 public List<Editor> getEditorList() {
|
|
|
568 // TODO Auto-generated method stub
|
|
|
569 return editorList;
|
|
|
570 }
|
|
|
571
|
|
0
|
572 }
|
