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

                if (localWrittenBytes == 0 || writtenBytes >= maxWrittenBytes) {
                    // Kernel buffer is full or wrote too much
                    key.interestOps(key.interestOps() | SelectionKey.OP_WRITE);
                    return false;
                } else {
                    key.interestOps(key.interestOps() & (~SelectionKey.OP_WRITE));
    
                    // pop and fire event
                    writeRequestQueue.poll();
    
                    session.increaseWrittenMessages();

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                if (localWrittenBytes == 0 || writtenBytes >= maxWrittenBytes) {
                    // Kernel buffer is full or wrote too much
                    key.interestOps(key.interestOps() | SelectionKey.OP_WRITE);
                    return false;
                } else {
                    key.interestOps(key.interestOps() & (~SelectionKey.OP_WRITE));
    
                    // pop and fire event
                    writeRequestQueue.poll();
    
                    session.increaseWrittenMessages();

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            return false;
        }
        if (!key.isValid()) {
            return false;
        }
        key.interestOps(key.interestOps() & (~SelectionKey.OP_WRITE));


        DatagramChannel ch = session.getChannel();
        Queue<WriteRequest> writeRequestQueue = session.getWriteRequestQueue();


        int writtenBytes = 0;

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            return false;
        }
        if (!key.isValid()) {
            return false;
        }
        key.interestOps(key.interestOps() & (~SelectionKey.OP_WRITE));


        DatagramChannel ch = session.getChannel();
        Queue<WriteRequest> writeRequestQueue = session.getWriteRequestQueue();


        int writtenBytes = 0;

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                int localWrittenBytes = ch.send(buf.buf(), destination);
                writtenBytes += localWrittenBytes;
    
                if (localWrittenBytes == 0 || writtenBytes >= maxWrittenBytes) {
                    // Kernel buffer is full or wrote too much
                    key.interestOps(key.interestOps() | SelectionKey.OP_WRITE);
                    return false;
                } else {
                    // pop and fire event
                    writeRequestQueue.poll();

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                int localWrittenBytes = ch.send(buf.buf(), destination);
                writtenBytes += localWrittenBytes;
    
                if (localWrittenBytes == 0 || writtenBytes >= maxWrittenBytes) {
                    // Kernel buffer is full or wrote too much
                    key.interestOps(key.interestOps() | SelectionKey.OP_WRITE);
                    return false;
                } else {
                    // pop and fire event
                    writeRequestQueue.poll();

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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);
                            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);
                            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()==-1)?((long) socketProperties.getSoTimeout()):(ka.getTimeout());
                        boolean isTimedout = 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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                        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
                            cancelledKey(key, SocketStatus.TIMEOUT,true);
                        } else {
                            long nextTime = now+(timeout-delta);
                            nextExpiration = (nextTime < nextExpiration)?nextTime:nextExpiration;

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