/*
* Copyright 2014 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.spdy.client;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.http.DefaultFullHttpRequest;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpMethod;
import io.netty.handler.codec.http.HttpRequest;
import io.netty.handler.codec.http.HttpVersion;
import io.netty.handler.codec.spdy.SpdyOrHttpChooser.SelectedProtocol;
import io.netty.handler.ssl.JettyNpnSslEngineWrapper;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
import java.util.Arrays;
/**
* An SPDY client that allows you to send HTTP GET to a SPDY server.
* <p>
* This class must be run with the JVM parameter: {@code java -Xbootclasspath/p:<path_to_npn_boot_jar> ...}. The
* "path_to_npn_boot_jar" is the path on the file system for the NPN Boot Jar file which can be downloaded from Maven at
* coordinates org.mortbay.jetty.npn:npn-boot. Different versions applies to different OpenJDK versions. See
* <a href="http://www.eclipse.org/jetty/documentation/current/npn-chapter.html">Jetty docs</a> for more information.
* <p>
* You may also use the {@code run-example.sh} script to start the client from the command line:
* <pre>
* ./run-example.sh spdy-client
* </pre>
*/
public final class SpdyClient {
static final boolean SSL = System.getProperty("ssl") != null;
static final String HOST = System.getProperty("host", "127.0.0.1");
static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8443" : "8080"));
public static void main(String[] args) throws Exception {
// Configure SSL.
final SslContext sslCtx = SslContext.newClientContext(
null, InsecureTrustManagerFactory.INSTANCE, null,
Arrays.asList(SelectedProtocol.SPDY_3_1.protocolName(), SelectedProtocol.HTTP_1_1.protocolName()),
JettyNpnSslEngineWrapper.instance(),
0, 0);
HttpResponseClientHandler httpResponseHandler = new HttpResponseClientHandler();
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(workerGroup);
b.channel(NioSocketChannel.class);
b.option(ChannelOption.SO_KEEPALIVE, true);
b.remoteAddress(HOST, PORT);
b.handler(new SpdyClientInitializer(sslCtx, httpResponseHandler));
// Start the client.
Channel channel = b.connect().syncUninterruptibly().channel();
System.out.println("Connected to " + HOST + ':' + PORT);
// Create a GET request.
HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "");
request.headers().set(HttpHeaders.Names.HOST, HOST);
request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
// Send the GET request.
channel.writeAndFlush(request).sync();
// Waits for the complete HTTP response
httpResponseHandler.queue().take().sync();
System.out.println("Finished SPDY HTTP GET");
// Wait until the connection is closed.
channel.close().syncUninterruptibly();
} finally {
if (workerGroup != null) {
workerGroup.shutdownGracefully();
}
}
}
}