/*
* Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.protocol.bmp.mock;
import com.google.common.base.Preconditions;
import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import org.opendaylight.protocol.bmp.api.BmpSessionFactory;
import org.opendaylight.protocol.bmp.impl.BmpHandlerFactory;
import org.opendaylight.protocol.bmp.spi.registry.BmpMessageRegistry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
final class BmpMockDispatcher {
private static final Logger LOG = LoggerFactory.getLogger(BmpMockDispatcher.class);
private static final int CONNECT_TIMEOUT = 2000;
private static final int MAX_CONNECTIONS_COUNT = 128;
private final BmpHandlerFactory hf;
private final BmpSessionFactory sessionFactory;
private final EventLoopGroup bossGroup = new NioEventLoopGroup();
private final EventLoopGroup workerGroup = new NioEventLoopGroup();
BmpMockDispatcher(final BmpMessageRegistry registry, final BmpSessionFactory sessionFactory) {
this.sessionFactory = Preconditions.checkNotNull(sessionFactory);
Preconditions.checkNotNull(registry);
this.hf = new BmpHandlerFactory(registry);
}
private Bootstrap createClientInstance(final SocketAddress localAddress) {
final NioEventLoopGroup workergroup = new NioEventLoopGroup();
final Bootstrap bootstrap = new Bootstrap();
bootstrap.channel(NioSocketChannel.class);
bootstrap.option(ChannelOption.SO_KEEPALIVE, true);
bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, CONNECT_TIMEOUT);
bootstrap.option(ChannelOption.SO_REUSEADDR, true);
bootstrap.group(workergroup);
bootstrap.handler(new ChannelInitializer<NioSocketChannel>() {
@Override
protected void initChannel(final NioSocketChannel ch) throws Exception {
ch.pipeline().addLast(BmpMockDispatcher.this.sessionFactory.getSession(ch, null));
ch.pipeline().addLast(BmpMockDispatcher.this.hf.getEncoders());
}
});
bootstrap.localAddress(localAddress);
return bootstrap;
}
ChannelFuture createClient(final SocketAddress localAddress, final SocketAddress remoteAddress) {
Preconditions.checkNotNull(localAddress);
Preconditions.checkNotNull(remoteAddress);
// ideally we should use Bootstrap clones here
final Bootstrap bootstrap = createClientInstance(localAddress);
final ChannelFuture channelFuture = bootstrap.connect(remoteAddress);
LOG.info("BMP client {} <--> {} deployed", localAddress, remoteAddress);
return channelFuture;
}
private ServerBootstrap createServerInstance() {
final ServerBootstrap serverBootstrap = new ServerBootstrap();
serverBootstrap.childHandler(new ChannelInitializer<Channel>() {
@Override
protected void initChannel(final Channel ch) throws Exception {
ch.pipeline().addLast(BmpMockDispatcher.this.sessionFactory.getSession(ch, null));
ch.pipeline().addLast(BmpMockDispatcher.this.hf.getEncoders());
}
});
serverBootstrap.option(ChannelOption.SO_BACKLOG, MAX_CONNECTIONS_COUNT);
serverBootstrap.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
serverBootstrap.channel(NioServerSocketChannel.class);
serverBootstrap.group(this.bossGroup, this.workerGroup);
return serverBootstrap;
}
ChannelFuture createServer(final InetSocketAddress localAddress) {
Preconditions.checkNotNull(localAddress);
final ServerBootstrap serverBootstrap = createServerInstance();
final ChannelFuture channelFuture = serverBootstrap.bind(localAddress);
LOG.info("Initiated BMP server at {}.", localAddress);
return channelFuture;
}
}