Mercurial > hg > Database > Alice

annotate src/alice/daemon/IncomingTcpConnection.java @ 58:ebdcab7b9b04

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author one
date Wed, 08 Feb 2012 17:06:39 +0900
parents f9c82d9a4936
children 7aaadd08288c
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1 package alice.daemon;
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2
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3 import java.io.EOFException;
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4 import java.io.IOException;
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5 import java.nio.channels.ClosedChannelException;
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6
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7 import org.msgpack.MessagePack;
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8 import org.msgpack.unpacker.Unpacker;
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9
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10 import alice.datasegment.Command;
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11 import alice.datasegment.CommandType;
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12 import alice.datasegment.DataSegment;
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13 import alice.datasegment.DataSegmentKey;
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14 import alice.datasegment.DataSegmentManager;
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15 import alice.datasegment.LocalDataSegmentManager;
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16
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17 public class IncomingTcpConnection extends Thread {
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18
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19 private static MessagePack MSGPACK = new MessagePack();
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20 public Connection connection;
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21 public DataSegmentManager manager;
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22 public String reverseKey;
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23 public IncomingTcpConnection(Connection connection, DataSegmentManager manager, String reverseKey) {
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24 this.manager = manager;
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25 this.connection = connection;
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26 this.reverseKey = reverseKey;
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27 }
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28
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29 /**
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30 * pipeline thread for receiving
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31 */
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32 public void run() {
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33 Unpacker unpacker = null;
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34 try {
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35 unpacker = MSGPACK.createUnpacker(connection.socket.getInputStream());
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36 } catch (IOException e2) {
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37 e2.printStackTrace();
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38 }
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39 while (true) {
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40 try {
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41 CommandMessage msg = unpacker.read(CommandMessage.class);
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42 CommandType type = CommandType.getCommandTypeFromId(msg.type);
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43 LocalDataSegmentManager lmanager = (LocalDataSegmentManager)DataSegment.get("local");
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44 DataSegmentKey dsKey = lmanager.getDataSegmentKey(msg.key);
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45 switch (type) {
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46 case UPDATE:
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47 dsKey.addCommand(new Command(type, null, null, msg.val, 0, 0, null, null, reverseKey));
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48 break;
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49 case PUT:
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50 dsKey.addCommand(new Command(type, null, null, msg.val, 0, 0, null, null, reverseKey));
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51 break;
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52 case PEEK:
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53 //Command(CommandType cmdType, String argKey, Value val, int index, int seq, BlockingQueue<Command> replyQueue, CodeSegment cs) {
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54 dsKey.addCommand(new Command(type, null, null, null, msg.index, msg.seq, connection.sendQueue, null, null));
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55 break;
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56 case TAKE:
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57 dsKey.addCommand(new Command(type, null, null, null, msg.index, msg.seq, connection.sendQueue, null, null));
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58 break;
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59 case REMOVE:
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60 dsKey.addCommand(new Command(type, null, null, null, 0, 0, null, null, null));
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61 break;
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62 case REPLY:
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63 try {
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64 manager.replyQueue.put(new Command(type, null, null, msg.val, msg.index, msg.seq, null, null, null));
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65 } catch (InterruptedException e) {
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66 e.printStackTrace();
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67 }
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68 break;
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69 default:
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70 break;
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71 }
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72 } catch (ClosedChannelException e) {
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73 try {
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74 connection.sendQueue.put(new Command(CommandType.CLOSE, null, null, null, 0, 0, null, null, null));
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75 } catch (InterruptedException e1) {
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76 e1.printStackTrace();
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77 }
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78 return;
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79 } catch (EOFException e) {
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80 try {
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81 connection.sendQueue.put(new Command(CommandType.CLOSE, null, null, null, 0, 0, null, null, null));
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82 } catch (InterruptedException e1) {
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83 e1.printStackTrace();
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84 }
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85 return;
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86 } catch (IOException e) {
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87 e.printStackTrace();
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88 }
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89 }
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90 }
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92 }