/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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 org.apache.hadoop.portmap;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.oncrpc.RpcProgram;
import org.apache.hadoop.oncrpc.RpcUtil;
import org.apache.hadoop.util.StringUtils;
import org.jboss.netty.bootstrap.ConnectionlessBootstrap;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.group.ChannelGroup;
import org.jboss.netty.channel.group.DefaultChannelGroup;
import org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.jboss.netty.handler.timeout.IdleStateHandler;
import org.jboss.netty.util.HashedWheelTimer;
import com.google.common.annotations.VisibleForTesting;
/**
* Portmap service for binding RPC protocols. See RFC 1833 for details.
*/
final class Portmap {
private static final Log LOG = LogFactory.getLog(Portmap.class);
private static final int DEFAULT_IDLE_TIME_MILLISECONDS = 5000;
private ConnectionlessBootstrap udpServer;
private ServerBootstrap tcpServer;
private ChannelGroup allChannels = new DefaultChannelGroup();
private Channel udpChannel;
private Channel tcpChannel;
private final RpcProgramPortmap handler = new RpcProgramPortmap(allChannels);
public static void main(String[] args) {
StringUtils.startupShutdownMessage(Portmap.class, args, LOG);
final int port = RpcProgram.RPCB_PORT;
Portmap pm = new Portmap();
try {
pm.start(DEFAULT_IDLE_TIME_MILLISECONDS,
new InetSocketAddress(port), new InetSocketAddress(port));
} catch (Throwable e) {
LOG.fatal("Failed to start the server. Cause:" + e.getMessage());
pm.shutdown();
System.exit(-1);
}
}
void shutdown() {
allChannels.close().awaitUninterruptibly();
tcpServer.releaseExternalResources();
udpServer.releaseExternalResources();
}
@VisibleForTesting
SocketAddress getTcpServerLocalAddress() {
return tcpChannel.getLocalAddress();
}
@VisibleForTesting
SocketAddress getUdpServerLoAddress() {
return udpChannel.getLocalAddress();
}
@VisibleForTesting
RpcProgramPortmap getHandler() {
return handler;
}
void start(final int idleTimeMilliSeconds, final SocketAddress tcpAddress,
final SocketAddress udpAddress) {
tcpServer = new ServerBootstrap(new NioServerSocketChannelFactory(
Executors.newCachedThreadPool(), Executors.newCachedThreadPool()));
tcpServer.setPipelineFactory(new ChannelPipelineFactory() {
private final HashedWheelTimer timer = new HashedWheelTimer();
private final IdleStateHandler idleStateHandler = new IdleStateHandler(
timer, 0, 0, idleTimeMilliSeconds, TimeUnit.MILLISECONDS);
@Override
public ChannelPipeline getPipeline() throws Exception {
return Channels.pipeline(RpcUtil.constructRpcFrameDecoder(),
RpcUtil.STAGE_RPC_MESSAGE_PARSER, idleStateHandler, handler,
RpcUtil.STAGE_RPC_TCP_RESPONSE);
}
});
udpServer = new ConnectionlessBootstrap(new NioDatagramChannelFactory(
Executors.newCachedThreadPool()));
udpServer.setPipeline(Channels.pipeline(RpcUtil.STAGE_RPC_MESSAGE_PARSER,
handler, RpcUtil.STAGE_RPC_UDP_RESPONSE));
tcpChannel = tcpServer.bind(tcpAddress);
udpChannel = udpServer.bind(udpAddress);
allChannels.add(tcpChannel);
allChannels.add(udpChannel);
LOG.info("Portmap server started at tcp://" + tcpChannel.getLocalAddress()
+ ", udp://" + udpChannel.getLocalAddress());
}
}