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/*
 * Copyright 2014 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.reactivex.netty.examples.tcp.ssl;

import io.reactivex.netty.RxNetty;
import io.reactivex.netty.channel.ConnectionHandler;
import io.reactivex.netty.channel.ObservableConnection;
import io.reactivex.netty.pipeline.PipelineConfigurators;
import io.reactivex.netty.pipeline.ssl.DefaultFactories;
import io.reactivex.netty.server.RxServer;
import rx.Observable;
import rx.functions.Func1;

/**
 * @author Tomasz Bak
 */
public final class SslTcpEchoServer {

    static final int DEFAULT_PORT = 8104;

    private final int port;

    public SslTcpEchoServer(int port) {
        this.port = port;
    }

    public RxServer createServer() {
        RxServer server = RxNetty.newTcpServerBuilder(port, new ConnectionHandler() {
            @Override
            public Observable handle(
                    final ObservableConnection connection) {
                System.out.println("New client connection established.");
                connection.writeAndFlush("Welcome! \n\n");
                return connection.getInput().flatMap(new Func1>() {
                    @Override
                    public Observable call(String msg) {
                        System.out.println("onNext: " + msg);
                        msg = msg.trim();
                        if (!msg.isEmpty()) {
                            return connection.writeAndFlush("echo => " + msg + '\n');
                        } else {
                            return Observable.empty();
                        }
                    }
                });
            }
        }).withSslEngineFactory(DefaultFactories.selfSigned())
                .appendPipelineConfigurator(PipelineConfigurators.textOnlyConfigurator())
                .build();

        System.out.println("TCP echo server started...");
        return server;
    }

    public static void main(final String[] args) {
        new SslTcpEchoServer(DEFAULT_PORT).createServer().startAndWait();
    }
}




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