framework/src/main/java/org/opendaylight/protocol/framework/ChannelInitializerImpl.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.protocol.framework;
   9
  10
  11 import io.netty.channel.ChannelInitializer;
  12 import io.netty.channel.socket.SocketChannel;
  13 import io.netty.util.concurrent.Promise;
  14
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 import com.google.common.base.Preconditions;
  19
  20 final class ChannelInitializerImpl<M extends ProtocolMessage, S extends ProtocolSession<M>, L extends SessionListener<M, ?, ?>> extends ChannelInitializer<SocketChannel> {
  21         private static final Logger logger = LoggerFactory.getLogger(ChannelInitializerImpl.class);
  22         private final SessionNegotiatorFactory<M, S, L> negotiatorFactory;
  23         private final SessionListenerFactory<L> listenerFactory;
  24         private final ProtocolHandlerFactory<?> factory;
  25         private final Promise<S> promise;
  26
  27         ChannelInitializerImpl(final SessionNegotiatorFactory<M, S, L> negotiatorFactory, final SessionListenerFactory<L> listenerFactory,
  28                         final ProtocolHandlerFactory<?> factory, final Promise<S> promise) {
  29                 this.negotiatorFactory = Preconditions.checkNotNull(negotiatorFactory);
  30                 this.listenerFactory = Preconditions.checkNotNull(listenerFactory);
  31                 this.promise = Preconditions.checkNotNull(promise);
  32                 this.factory = Preconditions.checkNotNull(factory);
  33         }
  34
  35         @Override
  36         protected void initChannel(final SocketChannel ch) {
  37                 logger.debug("Initializing channel {}", ch);
  38                 ch.pipeline().addLast("decoder", factory.getDecoder());
  39                 ch.pipeline().addLast("negotiator", negotiatorFactory.getSessionNegotiator(listenerFactory, ch, promise));
  40                 ch.pipeline().addLast("encoder", factory.getEncoder());
  41                 logger.debug("Channel {} initialized", ch);
  42         }
  43 }