PerfHelloWorldClient.java

/*
 * 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.http.perf;

import io.netty.handler.logging.LogLevel;
import io.reactivex.netty.examples.ExamplesEnvironment;
import io.reactivex.netty.examples.http.helloworld.HelloWorldClient;
import io.reactivex.netty.protocol.http.client.HttpClient;
import org.slf4j.Logger;

import java.net.SocketAddress;
import java.nio.charset.Charset;

/**
 * A client to test {@link PerfHelloWorldServer}. This client is provided here only for completeness of the example,
 * otherwise, it is exactly the same as {@link HelloWorldClient}.
 */
public final class PerfHelloWorldClient {

    public static void main(String[] args) {

        ExamplesEnvironment env = ExamplesEnvironment.newEnvironment(PerfHelloWorldClient.class);
        Logger logger = env.getLogger();

        /*
         * Retrieves the server address, using the following algorithm:
         * <ul>
             <li>If any arguments are passed, then use the first argument as the server port.</li>
             <li>If available, use the second argument as the server host, else default to localhost</li>
             <li>Otherwise, start the passed server class and use that address.</li>
         </ul>
         */
        SocketAddress serverAddress = env.getServerAddress(PerfHelloWorldServer.class, args);

        HttpClient.newClient(serverAddress)
                  .enableWireLogging("perf-client", LogLevel.DEBUG)
                  .createGet("/hello")
                  .doOnNext(resp -> logger.info(resp.toString()))
                  .flatMap(resp -> resp.getContent()
                                       .map(bb -> bb.toString(Charset.defaultCharset()))
                  )
                  .toBlocking()
                  .forEach(logger::info);
    }
}