SCTP echo client/server multi-homing examples

Motivation:
There are no Netty SCTP examples on multi-homing.

Modifications:
- Added new example classes based on echo client/server example

Result:
Better documentation
This commit is contained in:
Jestan Nirojan 2015-05-10 16:21:52 +05:30 committed by Norman Maurer
parent 2ca6a70211
commit 74f67ddca7
2 changed files with 170 additions and 0 deletions

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/*
* Copyright 2015 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.example.sctp.multihoming;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.sctp.SctpChannel;
import io.netty.channel.sctp.SctpChannelOption;
import io.netty.channel.sctp.nio.NioSctpChannel;
import io.netty.example.sctp.SctpEchoClientHandler;
import java.net.InetAddress;
import java.net.InetSocketAddress;
/**
* SCTP Echo Client with multi-homing support.
*/
public final class SctpMultiHomingEchoClient {
private static final String CLIENT_PRIMARY_HOST = System.getProperty("host.primary", "127.0.0.1");
private static final String CLIENT_SECONDARY_HOST = System.getProperty("host.secondary", "127.0.0.2");
private static final int CLIENT_PORT = Integer.parseInt(System.getProperty("port.local", "8008"));
private static final String SERVER_REMOTE_HOST = System.getProperty("host.remote", "127.0.0.1");
private static final int SERVER_REMOTE_PORT = Integer.parseInt(System.getProperty("port.remote", "8007"));
public static void main(String[] args) throws Exception {
// Configure the client.
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group)
.channel(NioSctpChannel.class)
.option(SctpChannelOption.SCTP_NODELAY, true)
.handler(new ChannelInitializer<SctpChannel>() {
@Override
public void initChannel(SctpChannel ch) throws Exception {
ch.pipeline().addLast(
// new LoggingHandler(LogLevel.INFO),
new SctpEchoClientHandler());
}
});
InetSocketAddress localAddress = new InetSocketAddress(CLIENT_PRIMARY_HOST, CLIENT_PORT);
InetAddress localSecondaryAddress = InetAddress.getByName(CLIENT_SECONDARY_HOST);
InetSocketAddress remoteAddress = new InetSocketAddress(SERVER_REMOTE_HOST, SERVER_REMOTE_PORT);
// Bind the client channel.
ChannelFuture bindFuture = b.bind(localAddress).sync();
// Get the underlying sctp channel
SctpChannel channel = (SctpChannel) bindFuture.channel();
// Bind the secondary address.
// Please note that, bindAddress in the client channel should be done before connecting if you have not
// enable Dynamic Address Configuration. See net.sctp.addip_enable kernel param
channel.bindAddress(localSecondaryAddress).sync();
// Finish connect
ChannelFuture connectFuture = channel.connect(remoteAddress).sync();
// Wait until the connection is closed.
connectFuture.channel().closeFuture().sync();
} finally {
// Shut down the event loop to terminate all threads.
group.shutdownGracefully();
}
}
}

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/*
* Copyright 2015 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.example.sctp.multihoming;
import io.netty.bootstrap.ServerBootstrap;
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.sctp.SctpChannel;
import io.netty.channel.sctp.SctpServerChannel;
import io.netty.channel.sctp.nio.NioSctpServerChannel;
import io.netty.example.sctp.SctpEchoServerHandler;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import java.net.InetAddress;
import java.net.InetSocketAddress;
/**
* SCTP Echo Server with multi-homing support.
*/
public final class SctpMultiHomingEchoServer {
private static final String SERVER_PRIMARY_HOST = System.getProperty("host.primary", "127.0.0.1");
private static final String SERVER_SECONDARY_HOST = System.getProperty("host.secondary", "127.0.0.2");
private static final int SERVER_PORT = Integer.parseInt(System.getProperty("port", "8007"));
public static void main(String[] args) throws Exception {
// Configure the server.
EventLoopGroup bossGroup = new NioEventLoopGroup(1);
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup)
.channel(NioSctpServerChannel.class)
.option(ChannelOption.SO_BACKLOG, 100)
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(new ChannelInitializer<SctpChannel>() {
@Override
public void initChannel(SctpChannel ch) throws Exception {
ch.pipeline().addLast(
// new LoggingHandler(LogLevel.INFO),
new SctpEchoServerHandler());
}
});
InetSocketAddress localAddress = new InetSocketAddress(SERVER_PRIMARY_HOST, SERVER_PORT);
InetAddress localSecondaryAddress = InetAddress.getByName(SERVER_SECONDARY_HOST);
// Bind the server to primary address.
ChannelFuture bindFuture = b.bind(localAddress).sync();
//Get the underlying sctp channel
SctpServerChannel channel = (SctpServerChannel) bindFuture.channel();
//Bind the secondary address
ChannelFuture connectFuture = channel.bindAddress(localSecondaryAddress).sync();
// Wait until the connection is closed.
connectFuture.channel().closeFuture().sync();
} finally {
// Shut down all event loops to terminate all threads.
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
}
}
}