import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import io.netty.channel.Channel;
+import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import org.w3c.dom.NodeList;
public abstract class AbstractNetconfSessionNegotiator<P extends NetconfSessionPreferences, S extends AbstractNetconfSession<S, L>, L extends NetconfSessionListener<S>>
-extends AbstractSessionNegotiator<NetconfHelloMessage, S> {
+ extends AbstractSessionNegotiator<NetconfHelloMessage, S> {
- private static final Logger logger = LoggerFactory.getLogger(AbstractNetconfSessionNegotiator.class);
+ private static final Logger LOG = LoggerFactory.getLogger(AbstractNetconfSessionNegotiator.class);
public static final String NAME_OF_EXCEPTION_HANDLER = "lastExceptionHandler";
@Override
public void operationComplete(Future<? super Channel> future) {
Preconditions.checkState(future.isSuccess(), "Ssl handshake was not successful");
- logger.debug("Ssl handshake complete");
+ LOG.debug("Ssl handshake complete");
start();
}
});
private void start() {
final NetconfMessage helloMessage = this.sessionPreferences.getHelloMessage();
- logger.debug("Session negotiation started with hello message {}", XmlUtil.toString(helloMessage.getDocument()));
+ LOG.debug("Session negotiation started with hello message {} on channel {}", XmlUtil.toString(helloMessage.getDocument()), channel);
channel.pipeline().addLast(NAME_OF_EXCEPTION_HANDLER, new ExceptionHandlingInboundChannelHandler());
synchronized (this) {
if (state != State.ESTABLISHED) {
- logger.debug("Connection timeout after {}, session is in state {}", timeout, state);
+ LOG.debug("Connection timeout after {}, session is in state {}", timeout, state);
// Do not fail negotiation if promise is done or canceled
// It would result in setting result of the promise second time and that throws exception
if (isPromiseFinished() == false) {
- // FIXME BUG-1365 calling "negotiation failed" closes the channel, but the channel does not get closed if data is still being transferred
- // Loopback connection initiation might
negotiationFailed(new IllegalStateException("Session was not established after " + timeout));
+ changeState(State.FAILED);
+
+ channel.closeFuture().addListener(new GenericFutureListener<ChannelFuture>() {
+ @Override
+ public void operationComplete(ChannelFuture future) throws Exception {
+ if(future.isSuccess()) {
+ LOG.debug("Channel {} closed: success", future.channel());
+ } else {
+ LOG.warn("Channel {} closed: fail", future.channel());
+ }
+ }
+ });
}
-
- changeState(State.FAILED);
} else if(channel.isOpen()) {
channel.pipeline().remove(NAME_OF_EXCEPTION_HANDLER);
}
protected abstract S getSession(L sessionListener, Channel channel, NetconfHelloMessage message) throws NetconfDocumentedException;
private synchronized void changeState(final State newState) {
- logger.debug("Changing state from : {} to : {}", state, newState);
- Preconditions.checkState(isStateChangePermitted(state, newState), "Cannot change state from %s to %s", state,
- newState);
+ LOG.debug("Changing state from : {} to : {} for channel: {}", state, newState, channel);
+ Preconditions.checkState(isStateChangePermitted(state, newState), "Cannot change state from %s to %s for chanel %s", state,
+ newState, channel);
this.state = newState;
}
if (state == State.OPEN_WAIT && newState == State.FAILED) {
return true;
}
- logger.debug("Transition from {} to {} is not allowed", state, newState);
+ LOG.debug("Transition from {} to {} is not allowed", state, newState);
return false;
}
private final class ExceptionHandlingInboundChannelHandler extends ChannelInboundHandlerAdapter {
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
- logger.warn("An exception occurred during negotiation with {}", channel.remoteAddress(), cause);
+ LOG.warn("An exception occurred during negotiation with {}", channel.remoteAddress(), cause);
cancelTimeout();
negotiationFailed(cause);
changeState(State.FAILED);