| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.core5.reactive.examples; |
| |
| import java.net.InetSocketAddress; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.hc.core5.http.ContentType; |
| import org.apache.hc.core5.http.HeaderElements; |
| import org.apache.hc.core5.http.HttpConnection; |
| import org.apache.hc.core5.http.HttpHeaders; |
| import org.apache.hc.core5.http.HttpRequest; |
| import org.apache.hc.core5.http.HttpResponse; |
| import org.apache.hc.core5.http.URIScheme; |
| import org.apache.hc.core5.http.impl.BasicEntityDetails; |
| import org.apache.hc.core5.http.impl.Http1StreamListener; |
| import org.apache.hc.core5.http.impl.bootstrap.AsyncServerBootstrap; |
| import org.apache.hc.core5.http.impl.bootstrap.HttpAsyncServer; |
| import org.apache.hc.core5.http.message.BasicHeader; |
| import org.apache.hc.core5.http.message.BasicHttpResponse; |
| import org.apache.hc.core5.http.message.RequestLine; |
| import org.apache.hc.core5.http.message.StatusLine; |
| import org.apache.hc.core5.io.CloseMode; |
| import org.apache.hc.core5.reactive.ReactiveServerExchangeHandler; |
| import org.apache.hc.core5.reactor.IOReactorConfig; |
| import org.apache.hc.core5.reactor.ListenerEndpoint; |
| import org.apache.hc.core5.util.TimeValue; |
| |
| /** |
| * Example of full-duplex HTTP/1.1 message exchanges using reactive streaming. This demo server works out-of-the-box |
| * with {@link ReactiveFullDuplexClientExample}; it can also be invoked interactively using telnet. |
| */ |
| public class ReactiveFullDuplexServerExample { |
| public static void main(final String[] args) throws Exception { |
| int port = 8080; |
| if (args.length >= 1) { |
| port = Integer.parseInt(args[0]); |
| } |
| |
| final IOReactorConfig config = IOReactorConfig.custom() |
| .setSoTimeout(15, TimeUnit.SECONDS) |
| .setTcpNoDelay(true) |
| .build(); |
| |
| final HttpAsyncServer server = AsyncServerBootstrap.bootstrap() |
| .setIOReactorConfig(config) |
| .setStreamListener(new Http1StreamListener() { |
| @Override |
| public void onRequestHead(final HttpConnection connection, final HttpRequest request) { |
| System.out.println(connection.getRemoteAddress() + " " + new RequestLine(request)); |
| |
| } |
| |
| @Override |
| public void onResponseHead(final HttpConnection connection, final HttpResponse response) { |
| System.out.println(connection.getRemoteAddress() + " " + new StatusLine(response)); |
| } |
| |
| @Override |
| public void onExchangeComplete(final HttpConnection connection, final boolean keepAlive) { |
| if (keepAlive) { |
| System.out.println(connection.getRemoteAddress() + " exchange completed (connection kept alive)"); |
| } else { |
| System.out.println(connection.getRemoteAddress() + " exchange completed (connection closed)"); |
| } |
| } |
| |
| }) |
| .register("/echo", () -> new ReactiveServerExchangeHandler((request, entityDetails, responseChannel, context, requestBody, responseBodyFuture) -> { |
| if (new BasicHeader(HttpHeaders.EXPECT, HeaderElements.CONTINUE).equals(request.getHeader(HttpHeaders.EXPECT))) { |
| responseChannel.sendInformation(new BasicHttpResponse(100), context); |
| } |
| |
| responseChannel.sendResponse( |
| new BasicHttpResponse(200), |
| new BasicEntityDetails(-1, ContentType.APPLICATION_OCTET_STREAM), |
| context); |
| |
| // Simply using the request publisher as the response publisher will |
| // cause the server to echo the request body. |
| responseBodyFuture.execute(requestBody); |
| })) |
| .create(); |
| |
| Runtime.getRuntime().addShutdownHook(new Thread(() -> { |
| System.out.println("HTTP server shutting down"); |
| server.close(CloseMode.GRACEFUL); |
| })); |
| |
| server.start(); |
| final Future<ListenerEndpoint> future = server.listen(new InetSocketAddress(port), URIScheme.HTTP); |
| final ListenerEndpoint listenerEndpoint = future.get(); |
| System.out.print("Listening on " + listenerEndpoint.getAddress()); |
| server.awaitShutdown(TimeValue.ofDays(Long.MAX_VALUE)); |
| } |
| } |