/**
* 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.tajo.worker.dataserver;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.net.NetUtils;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFactory;
import org.jboss.netty.channel.group.ChannelGroup;
import org.jboss.netty.channel.group.ChannelGroupFuture;
import org.jboss.netty.channel.group.DefaultChannelGroup;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.apache.tajo.worker.dataserver.retriever.DataRetriever;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
public class HttpDataServer {
private final static Log LOG = LogFactory.getLog(HttpDataServer.class);
private final InetSocketAddress addr;
private InetSocketAddress bindAddr;
private ServerBootstrap bootstrap = null;
private ChannelFactory factory = null;
private ChannelGroup channelGroup = null;
public HttpDataServer(final InetSocketAddress addr,
final DataRetriever retriever) {
this.addr = addr;
this.factory = new NioServerSocketChannelFactory(
Executors.newCachedThreadPool(), Executors.newCachedThreadPool(),
Runtime.getRuntime().availableProcessors() * 2);
// Configure the server.
this.bootstrap = new ServerBootstrap(factory);
// Set up the event pipeline factory.
this.bootstrap.setPipelineFactory(
new HttpDataServerPipelineFactory(retriever));
this.channelGroup = new DefaultChannelGroup();
}
public HttpDataServer(String bindaddr, DataRetriever retriever) {
this(NetUtils.createSocketAddr(bindaddr), retriever);
}
public void start() {
// Bind and start to accept incoming connections.
Channel channel = bootstrap.bind(addr);
channelGroup.add(channel);
this.bindAddr = (InetSocketAddress) channel.getLocalAddress();
LOG.info("HttpDataServer starts up ("
+ this.bindAddr.getAddress().getHostAddress() + ":" + this.bindAddr.getPort()
+ ")");
}
public InetSocketAddress getBindAddress() {
return this.bindAddr;
}
public void stop() {
ChannelGroupFuture future = channelGroup.close();
future.awaitUninterruptibly();
factory.releaseExternalResources();
LOG.info("HttpDataServer shutdown ("
+ this.bindAddr.getAddress().getHostAddress() + ":"
+ this.bindAddr.getPort() + ")");
}
}