Package java.nio.channels

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

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                    logger.warning("Error closing server socket, " + e.getMessage());
                }
               
            // close a connection socket
            } else {
                NIOAttachment attachment = (NIOAttachment)key.attachment();
                attachment.close(new ServerShutdownException());
            }
        }
    }
}
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          synchronized (writeSelector.keys()) {
            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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        {
            SelectionKey key = selectedIter.next();
            selectedIter.remove();
            if(key.isAcceptable())
            {
                return (Listener) key.attachment();
            }
        }
        return null;
    }
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        {
            SelectionKey key = selectedIter.next();
            selectedIter.remove();
            if(key.isReadable() || key.isWritable())
            {
                return (Connector) key.attachment();

            }
        }
        return null;
    }
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        Iterator<SelectionKey> it = keys.iterator();
        while (it.hasNext()) {
            SelectionKey key = it.next();
            it.remove();

            DatagramSessionImpl session = (DatagramSessionImpl) key
                    .attachment();

            // Let the recycler know that the session is still active.
            getSessionRecycler(session).recycle(session.getLocalAddress(),
                    session.getRemoteAddress());
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        if (key == null) {
            throw new IllegalArgumentException("Unknown localAddress: "
                    + localAddress);
        }

        RegistrationRequest req = (RegistrationRequest) key.attachment();
        IoSession session;
        IoSessionRecycler sessionRecycler = getSessionRecycler(req);
        synchronized (sessionRecycler) {
            session = sessionRecycler.recycle(localAddress, remoteAddress);
            if (session != null) {
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            SelectionKey key = it.next();
            it.remove();

            DatagramChannel ch = (DatagramChannel) key.channel();

            RegistrationRequest req = (RegistrationRequest) key.attachment();
            try {
                if (key.isReadable()) {
                    readSession(ch, req);
                }
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                if (ch == null) {
                    request.exception = new IllegalArgumentException(
                            "Address not bound: " + request.address);
                } else {
                    SelectionKey key = ch.keyFor(selector);
                    request.registrationRequest = (RegistrationRequest) key
                            .attachment();
                    key.cancel();
                    selector.wakeup(); // wake up again to trigger thread death
                    ch.disconnect();
                    ch.close();
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            } else {
                final SelectionKey key = socket.getIOChannel().keyFor(socket.getPoller().getSelector());
                try {
                    boolean cancel = false;
                    if (key != null) {
                        final KeyAttachment att = (KeyAttachment) key.attachment();
                        if ( att!=null ) {
                            //handle callback flag
                            if (att.getComet() && (interestOps & OP_CALLBACK) == OP_CALLBACK ) {
                                att.setCometNotify(true);
                            } else {
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                    Iterator iterator = keyCount > 0 ? selector.selectedKeys().iterator() : null;
                    // Walk through the collection of ready keys and dispatch
                    // any active event.
                    while (iterator != null && iterator.hasNext()) {
                        SelectionKey sk = (SelectionKey) iterator.next();
                        KeyAttachment attachment = (KeyAttachment)sk.attachment();
                        attachment.access();
                        iterator.remove();
                        processKey(sk, attachment);
                    }//while
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