io.reactivesocket.netty.tcp.Pong.java Source code

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Here is the source code for io.reactivesocket.netty.tcp.Pong.java

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/**
 * Copyright 2015 Netflix, Inc.
 *
 * Licensed 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.reactivesocket.netty.tcp;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.reactivesocket.Payload;
import io.reactivesocket.RequestHandler;
import io.reactivesocket.netty.tcp.server.ReactiveSocketServerHandler;
import io.reactivesocket.test.TestUtil;
import org.reactivestreams.Publisher;
import org.reactivestreams.Subscriber;
import rx.Observable;
import rx.RxReactiveStreams;

import java.nio.ByteBuffer;
import java.util.Random;

public class Pong {
    public static void main(String... args) throws Exception {
        byte[] response = new byte[1024];
        Random r = new Random();
        r.nextBytes(response);

        ReactiveSocketServerHandler serverHandler = ReactiveSocketServerHandler
                .create((setupPayload, rs) -> new RequestHandler() {
                    @Override
                    public Publisher<Payload> handleRequestResponse(Payload payload) {
                        return new Publisher<Payload>() {
                            @Override
                            public void subscribe(Subscriber<? super Payload> s) {
                                Payload responsePayload = new Payload() {
                                    ByteBuffer data = ByteBuffer.wrap(response);
                                    ByteBuffer metadata = ByteBuffer.allocate(0);

                                    public ByteBuffer getData() {
                                        return data;
                                    }

                                    @Override
                                    public ByteBuffer getMetadata() {
                                        return metadata;
                                    }
                                };

                                s.onNext(responsePayload);
                                s.onComplete();
                            }
                        };
                    }

                    @Override
                    public Publisher<Payload> handleRequestStream(Payload payload) {
                        Payload response = TestUtil.utf8EncodedPayload("hello world", "metadata");
                        return RxReactiveStreams.toPublisher(Observable.range(1, 10).map(i -> response));
                    }

                    @Override
                    public Publisher<Payload> handleSubscription(Payload payload) {
                        Payload response = TestUtil.utf8EncodedPayload("hello world", "metadata");
                        return RxReactiveStreams.toPublisher(Observable.range(1, 10).map(i -> response));
                    }

                    @Override
                    public Publisher<Void> handleFireAndForget(Payload payload) {
                        return Subscriber::onComplete;
                    }

                    @Override
                    public Publisher<Payload> handleChannel(Payload initialPayload, Publisher<Payload> inputs) {
                        Observable<Payload> observable = RxReactiveStreams.toObservable(inputs).map(input -> input);
                        return RxReactiveStreams.toPublisher(observable);

                        //                    return outputSubscriber -> {
                        //                        inputs.subscribe(new Subscriber<Payload>() {
                        //                            private int count = 0;
                        //                            private boolean completed = false;
                        //
                        //                            @Override
                        //                            public void onSubscribe(Subscription s) {
                        //                                //outputSubscriber.onSubscribe(s);
                        //                                s.request(128);
                        //                            }
                        //
                        //                            @Override
                        //                            public void onNext(Payload input) {
                        //                                if (completed) {
                        //                                    return;
                        //                                }
                        //                                count += 1;
                        //                                outputSubscriber.onNext(input);
                        //                                outputSubscriber.onNext(input);
                        //                                if (count > 10) {
                        //                                    completed = true;
                        //                                    outputSubscriber.onComplete();
                        //                                }
                        //                            }
                        //
                        //                            @Override
                        //                            public void onError(Throwable t) {
                        //                                if (!completed) {
                        //                                    outputSubscriber.onError(t);
                        //                                }
                        //                            }
                        //
                        //                            @Override
                        //                            public void onComplete() {
                        //                                if (!completed) {
                        //                                    outputSubscriber.onComplete();
                        //                                }
                        //                            }
                        //                        });
                        //                    };
                    }

                    @Override
                    public Publisher<Void> handleMetadataPush(Payload payload) {
                        return null;
                    }
                });

        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new ChannelInitializer<Channel>() {
                    @Override
                    protected void initChannel(Channel ch) throws Exception {
                        ChannelPipeline pipeline = ch.pipeline();
                        pipeline.addLast(serverHandler);
                    }
                });

        Channel localhost = b.bind("localhost", 7878).sync().channel();
        localhost.closeFuture().sync();

    }
}