Package java.nio.channels

Examples of java.nio.channels.SelectionKey.channel()

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            calls = new ArrayList<Call>(writeSelector.keys().size());
            iter = writeSelector.keys().iterator();
            while (iter.hasNext()) {
              SelectionKey key = iter.next();
              Call call = (Call)key.attachment();
              if (call != null && key.channel() == call.connection.channel) {
                calls.add(call);
              }
            }
          }
         
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            calls = new ArrayList<Call>(writeSelector.keys().size());
            iter = writeSelector.keys().iterator();
            while (iter.hasNext()) {
              SelectionKey key = iter.next();
              Call call = (Call) key.attachment();
              if (call != null && key.channel() == call.connection.channel) {
                calls.add(call);
              }
            }
          }
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      // handle selectable I/O
      for (Iterator<SelectionKey> i = selector.selectedKeys().iterator();
           i.hasNext();) {
        SelectionKey key = i.next();
        SocketChannel channel = (SocketChannel) key.channel();
        i.remove();

        if (key.isValid()) {
          client = (Client) key.attachment();
          try {
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                                {
                                    SelectionKey k = (SelectionKey)iterator.next();
                                    if (!k.isValid() || k.interestOps()==0)
                                        continue;
                                   
                                    final SelectableChannel channel = k.channel();
                                    final Object attachment = k.attachment();
                                   
                                    if (attachment==null)
                                        addChange(channel);
                                    else
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                        added.add(ch.channel);
                    }

                    // Now clear out any previously selected channels
                    for (SelectionKey k : selected) {
                        if (!added.contains(k.channel())) {
                            k.cancel();
                        }
                    }

                    //
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                    if ((opAccept && selKey.isAcceptable())
                            || (opConnect && selKey.isConnectable())
                            || (opRead && selKey.isReadable())
                            || (opWrite && selKey.isWritable())) {
                        // Get channel with connection request
                        return selKey.channel();
                    }
                }
            }
            // This method didn't find a channel above, which means
            // the selector is about to close, so set notNullIfClosing
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                if( !key.isAcceptable() )
                {
                    continue;
                }
  
                ServerSocketChannel ssc = ( ServerSocketChannel ) key.channel();
  
                SocketChannel ch = ssc.accept();
  
                if( ch == null )
                {
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            SelectionKey key = ( SelectionKey ) it.next();

            if( !key.isConnectable() )
                continue;

            SocketChannel ch = ( SocketChannel ) key.channel();
            ConnectionRequest entry = ( ConnectionRequest ) key.attachment();

            try
            {
                ch.finishConnect();
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            if( key == null )
                break;
            else
            {
                DatagramChannel ch = ( DatagramChannel ) key.channel();
                try
                {
                    ch.close();
                }
                catch( IOException e )
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            calls = new ArrayList<Call>(writeSelector.keys().size());
            iter = writeSelector.keys().iterator();
            while (iter.hasNext()) {
              SelectionKey key = iter.next();
              Call call = (Call)key.attachment();
              if (call != null && key.channel() == call.connection.channel) {
                calls.add(call);
              }
            }
          }
         
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