Examples with Promise org.apache.hbase.thirdparty.io.netty.util.concurrent.Promise used on opensource projects

Example 1 with Promise

use of org.apache.hbase.thirdparty.io.netty.util.concurrent.Promise in project hbase by apache.

the class NettyRpcConnection method saslNegotiate.

private void saslNegotiate(final Channel ch) {
    assert eventLoop.inEventLoop();
    UserGroupInformation ticket = provider.getRealUser(remoteId.getTicket());
    if (ticket == null) {
        failInit(ch, new FatalConnectionException("ticket/user is null"));
        return;
    }
    Promise<Boolean> saslPromise = ch.eventLoop().newPromise();
    final NettyHBaseSaslRpcClientHandler saslHandler;
    try {
        saslHandler = new NettyHBaseSaslRpcClientHandler(saslPromise, ticket, provider, token, ((InetSocketAddress) ch.remoteAddress()).getAddress(), securityInfo, rpcClient.fallbackAllowed, this.rpcClient.conf);
    } catch (IOException e) {
        failInit(ch, e);
        return;
    }
    ch.pipeline().addFirst(new SaslChallengeDecoder(), saslHandler);
    saslPromise.addListener(new FutureListener<Boolean>() {

        @Override
        public void operationComplete(Future<Boolean> future) throws Exception {
            if (future.isSuccess()) {
                ChannelPipeline p = ch.pipeline();
                p.remove(SaslChallengeDecoder.class);
                p.remove(NettyHBaseSaslRpcClientHandler.class);
                // check if negotiate with server for connection header is necessary
                if (saslHandler.isNeedProcessConnectionHeader()) {
                    Promise<Boolean> connectionHeaderPromise = ch.eventLoop().newPromise();
                    // create the handler to handle the connection header
                    ChannelHandler chHandler = new NettyHBaseRpcConnectionHeaderHandler(connectionHeaderPromise, conf, connectionHeaderWithLength);
                    // add ReadTimeoutHandler to deal with server doesn't response connection header
                    // because of the different configuration in client side and server side
                    p.addFirst(new ReadTimeoutHandler(RpcClient.DEFAULT_SOCKET_TIMEOUT_READ, TimeUnit.MILLISECONDS));
                    p.addLast(chHandler);
                    connectionHeaderPromise.addListener(new FutureListener<Boolean>() {

                        @Override
                        public void operationComplete(Future<Boolean> future) throws Exception {
                            if (future.isSuccess()) {
                                ChannelPipeline p = ch.pipeline();
                                p.remove(ReadTimeoutHandler.class);
                                p.remove(NettyHBaseRpcConnectionHeaderHandler.class);
                                // don't send connection header, NettyHbaseRpcConnectionHeaderHandler
                                // sent it already
                                established(ch);
                            } else {
                                final Throwable error = future.cause();
                                scheduleRelogin(error);
                                failInit(ch, toIOE(error));
                            }
                        }
                    });
                } else {
                    // send the connection header to server
                    ch.write(connectionHeaderWithLength.retainedDuplicate());
                    established(ch);
                }
            } else {
                final Throwable error = future.cause();
                scheduleRelogin(error);
                failInit(ch, toIOE(error));
            }
        }
    });
}