package org.jboss.resteasy.plugins.server.netty;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelHandler;
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.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.codec.http.HttpResponseEncoder;
import io.netty.handler.ssl.SslHandler;
import io.netty.util.concurrent.EventExecutor;
import org.jboss.resteasy.core.SynchronousDispatcher;
import org.jboss.resteasy.plugins.server.embedded.EmbeddedJaxrsServer;
import org.jboss.resteasy.plugins.server.embedded.SecurityDomain;
import org.jboss.resteasy.spi.ResteasyDeployment;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLEngine;
import java.net.InetSocketAddress;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* An HTTP server that sends back the content of the received HTTP request
* in a pretty plaintext form.
*
* @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
* @author Andy Taylor (andy.taylor@jboss.org)
* @author <a href="http://gleamynode.net/">Trustin Lee</a>
* @author Norman Maurer
* @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
*/
public class NettyJaxrsServer implements EmbeddedJaxrsServer
{
protected ServerBootstrap bootstrap = new ServerBootstrap();
protected String hostname = null;
protected int port = 8080;
protected ResteasyDeployment deployment = new ResteasyDeployment();
protected String root = "";
protected SecurityDomain domain;
private EventLoopGroup eventLoopGroup;
private EventLoopGroup eventExecutor;
private int ioWorkerCount = Runtime.getRuntime().availableProcessors() * 2;
private int executorThreadCount = 16;
private SSLContext sslContext;
private int maxRequestSize = 1024 * 1024 * 10;
private int backlog = 128;
private List<ChannelHandler> channelHandlers = Collections.emptyList();
private Map<ChannelOption, Object> channelOptions = Collections.emptyMap();
private Map<ChannelOption, Object> childChannelOptions = Collections.emptyMap();
public void setSSLContext(SSLContext sslContext)
{
this.sslContext = sslContext;
}
/**
* Specify the worker count to use. For more information about this please see the javadocs of {@link EventLoopGroup}
*
* @param ioWorkerCount
*/
public void setIoWorkerCount(int ioWorkerCount)
{
this.ioWorkerCount = ioWorkerCount;
}
/**
* Set the number of threads to use for the EventExecutor. For more information please see the javadocs of {@link EventExecutor}.
* If you want to disable the use of the {@link EventExecutor} specify a value <= 0. This should only be done if you are 100% sure that you don't have any blocking
* code in there.
*
* @param executorThreadCount
*/
public void setExecutorThreadCount(int executorThreadCount)
{
this.executorThreadCount = executorThreadCount;
}
/**
* Set the max. request size in bytes. If this size is exceed we will send a "413 Request Entity Too Large" to the client.
*
* @param maxRequestSize the max request size. This is 10mb by default.
*/
public void setMaxRequestSize(int maxRequestSize)
{
this.maxRequestSize = maxRequestSize;
}
public String getHostname() {
return hostname;
}
public void setHostname(String hostname) {
this.hostname = hostname;
}
public int getPort()
{
return port;
}
public void setPort(int port)
{
this.port = port;
}
public void setBacklog(int backlog)
{
this.backlog = backlog;
}
/**
* Add additional {@link io.netty.channel.ChannelHandler}s to the {@link io.netty.bootstrap.ServerBootstrap}.
* <p>The additional channel handlers are being added <em>before</em> the HTTP handling.</p>
*
* @param channelHandlers the additional {@link io.netty.channel.ChannelHandler}s.
*/
public void setChannelHandlers(final List<ChannelHandler> channelHandlers) {
this.channelHandlers = channelHandlers == null ? Collections.<ChannelHandler>emptyList() : channelHandlers;
}
/**
* Add Netty {@link io.netty.channel.ChannelOption}s to the {@link io.netty.bootstrap.ServerBootstrap}.
*
* @param channelOptions the additional {@link io.netty.channel.ChannelOption}s.
* @see io.netty.bootstrap.ServerBootstrap#option(io.netty.channel.ChannelOption, Object)
*/
public void setChannelOptions(final Map<ChannelOption, Object> channelOptions) {
this.channelOptions = channelOptions == null ? Collections.<ChannelOption, Object>emptyMap() : channelOptions;
}
/**
* Add child options to the {@link io.netty.bootstrap.ServerBootstrap}.
*
* @param channelOptions the additional child {@link io.netty.channel.ChannelOption}s.
* @see io.netty.bootstrap.ServerBootstrap#childOption(io.netty.channel.ChannelOption, Object)
*/
public void setChildChannelOptions(final Map<ChannelOption, Object> channelOptions) {
this.childChannelOptions = channelOptions == null ? Collections.<ChannelOption, Object>emptyMap() : channelOptions;
}
@Override
public void setDeployment(ResteasyDeployment deployment)
{
this.deployment = deployment;
}
@Override
public void setRootResourcePath(String rootResourcePath)
{
root = rootResourcePath;
if (root != null && root.equals("/")) root = "";
}
@Override
public ResteasyDeployment getDeployment()
{
return deployment;
}
@Override
public void setSecurityDomain(SecurityDomain sc)
{
this.domain = sc;
}
protected RequestDispatcher createRequestDispatcher()
{
return new RequestDispatcher((SynchronousDispatcher)deployment.getDispatcher(),
deployment.getProviderFactory(), domain);
}
@Override
public void start()
{
eventLoopGroup = new NioEventLoopGroup(ioWorkerCount);
eventExecutor = new NioEventLoopGroup(executorThreadCount);
deployment.start();
final RequestDispatcher dispatcher = this.createRequestDispatcher();
// Configure the server.
if (sslContext == null) {
bootstrap.group(eventLoopGroup)
.channel(NioServerSocketChannel.class)
.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(channelHandlers.toArray(new ChannelHandler[channelHandlers.size()]));
ch.pipeline().addLast(new HttpRequestDecoder());
ch.pipeline().addLast(new HttpObjectAggregator(maxRequestSize));
ch.pipeline().addLast(new HttpResponseEncoder());
ch.pipeline().addLast(new RestEasyHttpRequestDecoder(dispatcher.getDispatcher(), root, RestEasyHttpRequestDecoder.Protocol.HTTP));
ch.pipeline().addLast(new RestEasyHttpResponseEncoder());
ch.pipeline().addLast(eventExecutor, new RequestHandler(dispatcher));
}
})
.option(ChannelOption.SO_BACKLOG, backlog)
.childOption(ChannelOption.SO_KEEPALIVE, true);
} else {
final SSLEngine engine = sslContext.createSSLEngine();
engine.setUseClientMode(false);
bootstrap.group(eventLoopGroup)
.channel(NioServerSocketChannel.class)
.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addFirst(new SslHandler(engine));
ch.pipeline().addLast(channelHandlers.toArray(new ChannelHandler[channelHandlers.size()]));
ch.pipeline().addLast(new HttpRequestDecoder());
ch.pipeline().addLast(new HttpObjectAggregator(maxRequestSize));
ch.pipeline().addLast(new HttpResponseEncoder());
ch.pipeline().addLast(new RestEasyHttpRequestDecoder(dispatcher.getDispatcher(), root, RestEasyHttpRequestDecoder.Protocol.HTTPS));
ch.pipeline().addLast(new RestEasyHttpResponseEncoder());
ch.pipeline().addLast(eventExecutor, new RequestHandler(dispatcher));
}
})
.option(ChannelOption.SO_BACKLOG, backlog)
.childOption(ChannelOption.SO_KEEPALIVE, true);
for(Map.Entry<ChannelOption, Object> entry : channelOptions.entrySet()) {
bootstrap.option(entry.getKey(), entry.getValue());
}
for(Map.Entry<ChannelOption, Object> entry : childChannelOptions.entrySet()) {
bootstrap.childOption(entry.getKey(), entry.getValue());
}
}
final InetSocketAddress socketAddress;
if(null == hostname || hostname.isEmpty()) {
socketAddress = new InetSocketAddress(port);
} else {
socketAddress = new InetSocketAddress(hostname, port);
}
bootstrap.bind(socketAddress).syncUninterruptibly();
}
@Override
public void stop()
{
eventLoopGroup.shutdownGracefully();
eventExecutor.shutdownGracefully();
}
}