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1 package test.sematest;
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2
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3 import java.io.IOException;
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4 import java.net.InetSocketAddress;
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5 import java.nio.channels.SelectionKey;
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6 import java.util.LinkedList;
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7
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8 import rep.REP;
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9 import rep.REPCommand;
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10 import rep.REPCommandPacker;
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11 import rep.channel.REPLogger;
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12 import rep.channel.REPSelector;
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13 import rep.channel.REPSocketChannel;
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14 import test.Text;
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15
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16
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297
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17 /**
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18 * @author kono
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19 * Basic Temote Editor client implementation
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20 * should support multi-session
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21 * currently multi-session requires new channel, that is
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22 * only one session for this editor.
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23 */
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24 public class TestEditor extends Thread{
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25 private InetSocketAddress semaIP;
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26 private REPLogger ns;
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27 private int seq = 0;
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28 public Text text;
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29 public LinkedList<REPCommand> cmds;
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30 private int eid = 0;
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31 private int sid = 0;
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32 REPSocketChannel<REPCommand> channel;
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33 boolean running = true;
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34 long timeout = 1;
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35 private String name;
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36 private REPCommand nop = new REPCommand(REP.REPCMD_NOP,0,0,0,0,"");
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37 private boolean inputLock=false;
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38 public boolean detached=false;
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39 public boolean master=false;
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40 private int syncCounter;
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41 private boolean hasInputLock=true;
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284
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42
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43 static private String[] text1d = {
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44 "aaa", "bbb", "ccc", "ddd", "eee",
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45 };
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46
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47 public TestEditor(String name, String _host,int _port, boolean master){
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48 super(name);
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49 semaIP = new InetSocketAddress(_host, _port);
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50 ns = REPLogger.singleton();
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51 this.name = name;
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52 cmds = new LinkedList<REPCommand>();
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53 if (master) {
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54 this.master=true;
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55 text = new Text(text1d);
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56 cmds.add(new REPCommand(REP.SMCMD_PUT,0,0,0,0,name+"-file"));
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57 cmds.add(new REPCommand(REP.REPCMD_INSERT,0,0,0,0,"m0"));
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58 cmds.add(new REPCommand(REP.REPCMD_DELETE,0,0,0,0,"m0"));
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59 cmds.add(new REPCommand(REP.SMCMD_QUIT,0,0,0,0,""));
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60 } else {
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61 text = new Text(new String[0]);
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62 cmds.add(new REPCommand(REP.SMCMD_JOIN,0,0,0,0,name));
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63 cmds.add(new REPCommand(REP.REPCMD_INSERT,0,0,0,0,"c0"));
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64 cmds.add(new REPCommand(REP.REPCMD_DELETE,0,0,0,0,"c0"));
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65 //cmds.add(new REPCommand(REP.SMCMD_QUIT,0,0,0,0,""));
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66 }
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67 }
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68
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69 public void run(){
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70 try {
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71 channel = REPSocketChannel.<REPCommand>create(new REPCommandPacker());
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72 } catch (IOException e) { return; }
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73
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74 ns.writeLog("try to connect to SessionManager whose ip is "+semaIP+" "+name, 1);
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75 try {
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76 while (!channel.connect(semaIP)){
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77 ns.writeLog("SeMa not listen to socket yet, wait", 1);
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78 }
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79 } catch (IOException e) { return; }
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80 ns.writeLog("successes to connect "+name);
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81 /*
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82 * public REPCommand(REP cmd,int sid,int eid, int seq, int lineno, String string)
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83 */
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84 try {
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85 mainloop();
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86 } catch (IOException e) {
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87 }
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88 }
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89
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90 private void mainloop() throws IOException {
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91
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92 channel.configureBlocking(false);
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93 REPSelector<REPCommand> selector = REPSelector.create();
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94 channel.register(selector, SelectionKey.OP_READ);
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95 while(running) {
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96 if (inputLock) {
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97 // No user input during merge mode (optional)
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98 if (selector.select(0)>0) {
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99 handle(channel.read());
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100 }
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101 continue;
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102 } else if (selector.select(timeout)<=0) {
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103 if (syncCounter>0) {
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104 syncText();
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105 }
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106 userInput();
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107 } else {
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108 handle(channel.read());
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109 }
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110 }
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111 }
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112
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113 private void syncText() {
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114 if (syncCounter>text.size()) {
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115 syncCounter=0;
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116 } else {
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117 int i=syncCounter-1;
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118 REPCommand del = new REPCommand(REP.REPCMD_DELETE,sid,eid,0,i, text.get(i));
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119 REPCommand ins = new REPCommand(REP.REPCMD_INSERT,sid,eid,0,i, text.get(i));
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120 sendCommand(del);
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121 sendCommand(ins);
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122 syncCounter++;
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123 }
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124 }
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125
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126 private void userInput() {
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127 REPCommand cmd = cmds.poll();
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128 if (cmd!=null) {
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129 switch(cmd.cmd) {
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130 case REPCMD_INSERT:
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131 text.insert(cmd.lineno, cmd.string);
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132 sendCommand(cmd);
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133 break;
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134 case REPCMD_DELETE:
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135 String del = text.delete(cmd.lineno);
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136 cmd.setString(del);
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137 sendCommand(cmd);
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138 break;
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139 case SMCMD_QUIT:
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140 cmds.clear();
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141 sendCommand(cmd);
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142 break;
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143 case SMCMD_JOIN:
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144 case SMCMD_PUT:
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145 sendCommand(cmd);
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146 inputLock = true; // wait until ACK
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147 break;
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148 default:
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149 assert(false);
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150 }
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151 } else {
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152 // no more command to send
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153 timeout = 0;
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154 }
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155 }
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156
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157
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158 private void sendCommand(REPCommand cmd) {
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159 cmd.setSEQID(seq++);
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160 cmd.setEID(eid);
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161 cmd.setSID(sid);
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162 ns.writeLog(name +" send "+cmd);
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163 channel.write(cmd);
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164 }
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165
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166 private void handle(REPCommand cmd) {
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167 ns.writeLog(name +": read "+cmd);
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168 switch(cmd.cmd) {
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169 case REPCMD_INSERT :
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170 text.insert(cmd.lineno, cmd.string);
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171 sendCommand(cmd);
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172 // sendCommand(nop); session manager do this for me
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173 break;
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174 case REPCMD_INSERT_ACK :
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175 assert(false);
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176 break;
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177 case REPCMD_DELETE :
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178 String del = text.delete(cmd.lineno);
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179 cmd.setString(del);
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180 sendCommand(cmd);
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181 // sendCommand(nop); session manager do this for me
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182 break;
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183 case REPCMD_DELETE_ACK :
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184 assert(false);
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185 break;
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186 case REPCMD_CLOSE :
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187 case REPCMD_CLOSE_2 :
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188 assert(false);
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189 break;
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190 case REPCMD_NOP :
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191 sendCommand(cmd);
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192 sendCommand(nop);
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193 break;
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194 case SMCMD_JOIN_ACK :
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195 sid = cmd.sid;
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196 eid = cmd.eid;
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197 inputLock = false;
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198 break;
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199 case SMCMD_PUT_ACK :
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200 sid = cmd.sid;
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201 eid = cmd.eid;
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202 inputLock = false;
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203 break;
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204 case SMCMD_QUIT :
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205 sendCommand(cmd);
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206 cmds.clear();
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207 break;
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208 case SMCMD_QUIT_ACK :
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209 assert(false);
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210 break;
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211 case SMCMD_START_MERGE :
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212 // lock user input during merge (optional)
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213 inputLock = hasInputLock;
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214 cmd.cmd = REP.SMCMD_START_MERGE_ACK;
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215 sendCommand(cmd);
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216 break;
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217 case SMCMD_START_MERGE_ACK :
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218 assert(false);
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219 break;
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220 case SMCMD_END_MERGE :
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221 inputLock = false;
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222 break;
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223 case SMCMD_QUIT_2 :
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224 sendCommand(cmd);
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225 running = false;
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226 break;
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227 case SMCMD_SYNC:
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228 // start contents sync with newly joined editor
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229 cmd.cmd = REP.SMCMD_SYNC_ACK; sendCommand(cmd);
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230 syncCounter = 1;
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231 break;
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232 default:
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233 assert(false);
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234 break;
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235 }
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236 }
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237 }
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