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annotate src/fdl/FDLindaServ.java @ 19:0243987383b7

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Meta Protocol Engine and sample implementation of event logger. ComDebug_Client needs fixes.
author kono
date Tue, 19 Aug 2008 05:33:32 +0900
parents 609b288f47f9
children a0fd653d1121
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1
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2 package fdl;
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3
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4 import java.io.IOException;
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5 import java.net.InetAddress;
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6 import java.net.InetSocketAddress;
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7 import java.nio.channels.ClosedChannelException;
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8 import java.nio.channels.SelectionKey;
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9 import java.nio.channels.ServerSocketChannel;
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10 import java.nio.channels.spi.AbstractSelector;
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11 import java.nio.channels.spi.SelectorProvider;
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13 public class FDLindaServ {
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14 static final int MAX_REQ = 1;
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15 static final int FAIL = (-1);
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16 static final int DEF_PORT = 10000;
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17 //public static final int TIMEOUT = 5*1000;
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18 public int port = DEF_PORT;
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19 private AbstractSelector selector;
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20 private ServerSocketChannel ssChannel;
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21
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22 public static void main(final String[] args) {
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23 final String usages = "usage: FDLindaServ [-p port]";
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24 //バイトオーダー確認
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25 //System.out.println(ByteOrder.nativeOrder().toString());
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26
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27 int port = DEF_PORT;
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28 //引数判定
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29 try {
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30 for (int i=0; i<args.length; ++i) {
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31 if("-p".equals(args[i])) {
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32 port = Integer.parseInt(args[++i]);
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33 }
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34 }
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35 } catch (NumberFormatException e) {
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36 System.err.println(usages);
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37 return;
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38 }
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39 try {
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40 FDLindaServ serv;
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41 serv = new FDLindaServ(port);
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42 serv.mainLoop();
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43 } catch (IOException e) {
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44 System.err.println("Server Communiation Problem.");
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45 }
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46 }
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47
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48 private void mainLoop() {
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49 while(true) {
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50 checkTuple();
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51 }
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52 }
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53
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54 public FDLindaServ(int port) throws IOException {
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55 this.port = port;
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56 //セレクタを生成
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57 selector = SelectorProvider.provider().openSelector();
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58 //ソケット・チャネルを生成・設定
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59 ssChannel = SelectorProvider.provider().openServerSocketChannel();
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60 InetSocketAddress address = new InetSocketAddress(InetAddress.getLocalHost(), port);
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61 ssChannel.socket().bind(address);
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62 ssChannel.configureBlocking(false);
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63 //ssChannel.socket().setReuseAddress(true);
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64 System.out.println("Server: litening at "+ssChannel);
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65 //セレクタにチャンネルを登録
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66 TupleSpace tupleSpace = new TupleSpace();
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67 ssChannel.register(selector, SelectionKey.OP_ACCEPT, new AcceptHandler(tupleSpace));
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68
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70 }
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72 public void checkTuple() {
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73 // セレクタによる監視
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74 try {
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75 if (selector.select()>0) {
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76 for(SelectionKey s:selector.selectedKeys()) {
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77 TupleHandler handler = (TupleHandler)s.attachment();
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78 handler.handle(s);
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79 }
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80 }
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81 } catch (ClosedChannelException e) {
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82 // we have to do something...
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83 } catch (IOException e) {
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84 }
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85 }
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87 public void checkTuple(long timeout) {
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88 // セレクタによる監視
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89 try {
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90 if (selector.select(timeout)>0) {
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91 for(SelectionKey s:selector.selectedKeys()) {
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92 TupleHandler handler = (TupleHandler)s.attachment();
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93 handler.handle(s);
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94 }
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95 }
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96 } catch (ClosedChannelException e) {
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97 // we have to do something...
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98 } catch (IOException e) {
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99 }
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100 }
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101 }