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

java.nio.channels.SelectionKey.interestOps()
Gets the interesting operation of this key. @return the interesting operation of this key @throws CancelledKeyException If the key has been cancelled already

    }


    @Override
    protected boolean isInterestedInRead(NioSession session) {
        SelectionKey key = session.getSelectionKey();
        return key.isValid() && (key.interestOps() & SelectionKey.OP_READ) != 0;
    }


    @Override
    protected boolean isInterestedInWrite(NioSession session) {
        SelectionKey key = session.getSelectionKey();

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    @Override
    protected boolean isInterestedInWrite(NioSession session) {
        SelectionKey key = session.getSelectionKey();
        return key.isValid()
                && (key.interestOps() & SelectionKey.OP_WRITE) != 0;
    }


    /**
     * {@inheritDoc}
     */

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     */
    @Override
    protected void setInterestedInRead(NioSession session, boolean isInterested)
            throws Exception {
        SelectionKey key = session.getSelectionKey();
        int oldInterestOps = key.interestOps();
        int newInterestOps = oldInterestOps;


        if (isInterested) {
            newInterestOps |= SelectionKey.OP_READ;
        } else {

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        } else {
            newInterestOps &= ~SelectionKey.OP_READ;
        }


        if (oldInterestOps != newInterestOps) {
            key.interestOps(newInterestOps);
        }
    }


    /**
     * {@inheritDoc}

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        if (key == null) {
            return;
        }
        
        int newInterestOps = key.interestOps();


        if (isInterested) {
            newInterestOps |= SelectionKey.OP_WRITE;
            //newInterestOps &= ~SelectionKey.OP_READ;
        } else {

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        } else {
            newInterestOps &= ~SelectionKey.OP_WRITE;
            //newInterestOps |= SelectionKey.OP_READ;
        }


        key.interestOps(newInterestOps);
    }


    @Override
    protected int read(NioSession session, IoBuffer buf) throws Exception {
        ByteChannel channel = session.getChannel();

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                                att.setCometNotify(false);
                            }
                            interestOps = (interestOps & (~OP_CALLBACK));//remove the callback flag
                            att.access();//to prevent timeout
                            //we are registering the key to start with, reset the fairness counter.
                            int ops = key.interestOps() | interestOps;
                            att.interestOps(ops);
                            if (att.getCometNotify()) key.interestOps(0);
                            else key.interestOps(ops);
                        } else {
                            cancel = true;

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                            interestOps = (interestOps & (~OP_CALLBACK));//remove the callback flag
                            att.access();//to prevent timeout
                            //we are registering the key to start with, reset the fairness counter.
                            int ops = key.interestOps() | interestOps;
                            att.interestOps(ops);
                            if (att.getCometNotify()) key.interestOps(0);
                            else key.interestOps(ops);
                        } else {
                            cancel = true;
                        }
                    } else {

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                            att.access();//to prevent timeout
                            //we are registering the key to start with, reset the fairness counter.
                            int ops = key.interestOps() | interestOps;
                            att.interestOps(ops);
                            if (att.getCometNotify()) key.interestOps(0);
                            else key.interestOps(ops);
                        } else {
                            cancel = true;
                        }
                    } else {
                        cancel = true;

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                        //only timeout sockets that we are waiting for a read from
                        long delta = now - ka.getLastAccess();
                        long timeout = ka.getTimeout();
                        boolean isTimedout = timeout > 0 && delta > timeout;
                        if ( close ) {
                            key.interestOps(0);
                            ka.interestOps(0); //avoid duplicate stop calls
                            processKey(key,ka);
                        } else if (isTimedout) {
                            key.interestOps(0);
                            ka.interestOps(0); //avoid duplicate timeout calls

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