io.reactivex.netty.examples.local.LocalEcho Maven / Gradle / Ivy
/*
* 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.reactivex.netty.examples.local;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.DefaultEventLoopGroup;
import io.netty.channel.local.LocalAddress;
import io.netty.channel.local.LocalChannel;
import io.netty.channel.local.LocalServerChannel;
import io.netty.handler.logging.LogLevel;
import io.reactivex.netty.client.ChannelProvider;
import io.reactivex.netty.client.ChannelProviderFactory;
import io.reactivex.netty.client.Host;
import io.reactivex.netty.client.events.ClientEventListener;
import io.reactivex.netty.events.EventPublisher;
import io.reactivex.netty.events.EventSource;
import io.reactivex.netty.examples.ExamplesEnvironment;
import io.reactivex.netty.protocol.tcp.client.TcpClient;
import io.reactivex.netty.protocol.tcp.server.TcpServer;
import io.reactivex.netty.threads.RxDefaultThreadFactory;
import org.slf4j.Logger;
import rx.Observable;
import java.net.SocketAddress;
import java.nio.charset.Charset;
/**
* A local transport "Hello World" example that sends a string "Hello World!" to a local transport server and expects
* an echo response.
*/
public final class LocalEcho {
public static void main(String[] args) {
ExamplesEnvironment env = ExamplesEnvironment.newEnvironment(LocalEcho.class);
Logger logger = env.getLogger();
LocalAddress serverAddress = new LocalAddress("local-example");
/*Starts a new Local transport server.*/
DefaultEventLoopGroup eventLoopGroup = new DefaultEventLoopGroup(0, new RxDefaultThreadFactory("local-server"));
TcpServer.newServer(serverAddress,
eventLoopGroup,
LocalServerChannel.class)
.enableWireLogging("echo-server", LogLevel.DEBUG)
.start(connection -> connection
.writeStringAndFlushOnEach(connection.getInput()
.map(bb -> bb.toString(Charset.defaultCharset()))
.map(msg -> "echo => " + msg)));
/*Create a new client for the server address*/
TcpClient.newClient(serverAddress, eventLoopGroup, LocalChannel.class)
.enableWireLogging("echo-client", LogLevel.DEBUG)
.createConnectionRequest()
.flatMap(connection ->
connection.writeString(Observable.just("Hello World!"))
.cast(ByteBuf.class)
.concatWith(connection.getInput())
)
.take(1)
.map(bb -> bb.toString(Charset.defaultCharset()))
.toBlocking()
.forEach(logger::info);
}
}