Examples with IllegalSelectorException java.nio.channels.IllegalSelectorException used on opensource projects

Example 6 with IllegalSelectorException

use of java.nio.channels.IllegalSelectorException in project XobotOS by xamarin.

the class AbstractSelectableChannel method register.

/**
     * Registers this channel with the specified selector for the specified
     * interest set. If the channel is already registered with the selector, the
     * {@link SelectionKey interest set} is updated to {@code interestSet} and
     * the corresponding selection key is returned. If the channel is not yet
     * registered, this method calls the {@code register} method of
     * {@code selector} and adds the selection key to this channel's key set.
     *
     * @param selector
     *            the selector with which to register this channel.
     * @param interestSet
     *            this channel's {@link SelectionKey interest set}.
     * @param attachment
     *            the object to attach, can be {@code null}.
     * @return the selection key for this registration.
     * @throws CancelledKeyException
     *             if this channel is registered but its key has been canceled.
     * @throws ClosedChannelException
     *             if this channel is closed.
     * @throws IllegalArgumentException
     *             if {@code interestSet} is not supported by this channel.
     * @throws IllegalBlockingModeException
     *             if this channel is in blocking mode.
     * @throws IllegalSelectorException
     *             if this channel does not have the same provider as the given
     *             selector.
     */
@Override
public final SelectionKey register(Selector selector, int interestSet, Object attachment) throws ClosedChannelException {
    if (!isOpen()) {
        throw new ClosedChannelException();
    }
    if (!((interestSet & ~validOps()) == 0)) {
        throw new IllegalArgumentException();
    }
    synchronized (blockingLock) {
        if (isBlocking) {
            throw new IllegalBlockingModeException();
        }
        if (!selector.isOpen()) {
            if (interestSet == 0) {
                // throw ISE exactly to keep consistency
                throw new IllegalSelectorException();
            }
            // throw NPE exactly to keep consistency
            throw new NullPointerException();
        }
        SelectionKey key = keyFor(selector);
        if (key == null) {
            key = ((AbstractSelector) selector).register(this, interestSet, attachment);
            keyList.add(key);
        } else {
            if (!key.isValid()) {
                throw new CancelledKeyException();
            }
            key.interestOps(interestSet);
            key.attach(attachment);
        }
        return key;
    }
}