org.jocean.http.server.HttpTestServer.java Source code

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Here is the source code for org.jocean.http.server.HttpTestServer.java

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/*
 * Copyright 2012 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 org.jocean.http.server;

import static io.netty.handler.codec.http.HttpHeaders.Names.CONNECTION;
import static io.netty.handler.codec.http.HttpHeaders.Names.CONTENT_LENGTH;
import static io.netty.handler.codec.http.HttpHeaders.Names.CONTENT_TYPE;
import static io.netty.handler.codec.http.HttpResponseStatus.CONTINUE;
import static io.netty.handler.codec.http.HttpResponseStatus.OK;
import static io.netty.handler.codec.http.HttpVersion.HTTP_1_1;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandler;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.ServerChannel;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.DefaultFullHttpResponse;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.handler.codec.http.HttpObject;
import io.netty.handler.codec.http.HttpRequest;
import io.netty.handler.codec.http.HttpHeaders.Values;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.util.SelfSignedCertificate;

import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.concurrent.Callable;

/**
 * An HTTP server that sends back the content of the received HTTP request
 * in a pretty plaintext form.
 */
public final class HttpTestServer {

    public static final byte[] CONTENT = { 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd' };

    public static final Callable<ChannelInboundHandler> DEFAULT_NEW_HANDLER = new Callable<ChannelInboundHandler>() {
        @Override
        public ChannelInboundHandler call() throws Exception {
            return new HttpTestServerHandler() {
                @Override
                protected void channelRead0(final ChannelHandlerContext ctx, final HttpObject msg)
                        throws Exception {
                    if (msg instanceof HttpRequest) {
                        HttpRequest req = (HttpRequest) msg;

                        if (HttpHeaders.is100ContinueExpected(req)) {
                            ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
                        }
                        boolean keepAlive = HttpHeaders.isKeepAlive(req);
                        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK,
                                Unpooled.wrappedBuffer(HttpTestServer.CONTENT));
                        response.headers().set(CONTENT_TYPE, "text/plain");
                        response.headers().set(CONTENT_LENGTH, response.content().readableBytes());

                        if (!keepAlive) {
                            ctx.write(response).addListener(ChannelFutureListener.CLOSE);
                        } else {
                            response.headers().set(CONNECTION, Values.KEEP_ALIVE);
                            ctx.write(response);
                        }
                    }
                }
            };
        }
    };

    public HttpTestServer(final boolean enableSSL, final int port) throws Exception {
        this(enableSSL, new InetSocketAddress(port), new NioEventLoopGroup(1), new NioEventLoopGroup(),
                NioServerSocketChannel.class, DEFAULT_NEW_HANDLER);
    }

    public HttpTestServer(final boolean enableSSL, final SocketAddress localAddress, final EventLoopGroup bossGroup,
            final EventLoopGroup workerGroup, final Class<? extends ServerChannel> serverChannelType,
            final Callable<ChannelInboundHandler> newHandler) throws Exception {
        // Configure SSL.
        final SslContext sslCtx;
        if (enableSSL) {
            SelfSignedCertificate ssc = new SelfSignedCertificate();
            sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
        } else {
            sslCtx = null;
        }

        // Configure the server.
        _bossGroup = bossGroup;
        _workerGroup = workerGroup;

        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(_bossGroup, _workerGroup).channel(serverChannelType).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new HttpTestServerInitializer(sslCtx, newHandler));

        b.bind(localAddress).sync();
    }

    public void stop() {
        _bossGroup.shutdownGracefully();
        _workerGroup.shutdownGracefully();
    }

    private final EventLoopGroup _bossGroup;
    private final EventLoopGroup _workerGroup;

    public static void main(String[] args) throws Exception {
        @SuppressWarnings("unused")
        final HttpTestServer server = new HttpTestServer(false, 8080);
    }
}