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1 package rep.channel;
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2
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3 import java.io.IOException;
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4 import java.nio.channels.ClosedChannelException;
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5 import java.nio.channels.SelectableChannel;
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6 import java.nio.channels.SelectionKey;
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7 import java.nio.channels.Selector;
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8 import java.nio.channels.spi.AbstractSelector;
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9 import java.nio.channels.spi.SelectorProvider;
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10 import java.util.HashSet;
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11 import java.util.Iterator;
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12 import java.util.Set;
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13
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14
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15 public class REPSelector<P> extends Selector{
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16
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17 Selector selector;
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18
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19 public REPSelector(AbstractSelector selector) {
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20 this.selector = selector;
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21 }
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22
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23 public static <T>REPSelector<T> create() throws IOException{
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24 if(REPServerSocketChannel.isSimulation){
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25 return new SelectorSimulator<T>();
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26 }
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27 return new REPSelector<T>(SelectorProvider.provider().openSelector());
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28 }
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29
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30 @Override
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31 public void close() throws IOException {
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32 selector.close();
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33 }
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34
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35 @Override
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36 public boolean isOpen() {
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37 return selector.isOpen();
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38 }
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39
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40 @Override
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41 public Set<SelectionKey> keys() {
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42 return selector.keys();
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43 }
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44
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45 @Override
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46 public SelectorProvider provider() {
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47 return selector.provider();
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48 }
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49
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50 @Override
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51 public int select() throws IOException {
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52 return selector.select();
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53 }
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54
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55 @Override
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56 public int select(long timeout) throws IOException {
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57 return selector.select(timeout);
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58 }
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59
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60 @Override
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61 public int selectNow() throws IOException {
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62 return selector.selectNow();
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63 }
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64
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65 @Override
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66 public Set<SelectionKey> selectedKeys() {
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67 return selector.selectedKeys();
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68 }
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69
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70 @Override
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71 public Selector wakeup() {
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72 return selector.wakeup();
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73 }
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74
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75 public SelectionKey register(SelectableChannel ch, int ops, Object att) throws ClosedChannelException{
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76 return ch.register(selector, ops, att);
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77 }
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78
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79 public Set<REPSelectionKey<P>> selectedKeys1() {
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80 Set<SelectionKey> keys = selector.selectedKeys();
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81 //System.err.println("Selected keys = "+keys);
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82 HashSet<REPSelectionKey<P>> newKeys = new HashSet<REPSelectionKey<P>>();
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83
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84 for (Iterator<SelectionKey> it = keys.iterator();it.hasNext(); ) {
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85 SelectionKey k = it.next();
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86 newKeys.add(new REPSelectionKey<P>(k,this));
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87 it.remove();
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88 }
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89 return newKeys;
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90 }
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91
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92
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93
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94 }
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