EchoProtocolTest.java

package org.rapidoid;

/*
 * #%L
 * rapidoid-net
 * %%
 * Copyright (C) 2014 - 2017 Nikolche Mihajlovski and contributors
 * %%
 * 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.
 * #L%
 */

import org.junit.Test;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.buffer.BufUtil;
import org.rapidoid.commons.Rnd;
import org.rapidoid.io.IO;
import org.rapidoid.lambda.F3;
import org.rapidoid.net.AsyncLogic;
import org.rapidoid.net.Protocol;
import org.rapidoid.net.abstracts.Channel;
import org.rapidoid.u.U;
import org.rapidoid.util.Msc;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.concurrent.TimeUnit;

@Authors("Nikolche Mihajlovski")
@Since("2.0.0")
public class EchoProtocolTest extends NetTestCommons {

	private static final int ROUNDS = Msc.normalOrHeavy(10, 100);

	private static final int MAX_MSG_COUNT = 1000;

	private static final List<String> testCases = U.list(
		"abc\nxy\nbye\n",
		"abc\r\nxy\r\nbye\r\n",
		"abc\nbye\n",
		"abc\r\nbye\r\n"
	);

	static {
		String s1 = "", s2 = "";

		for (int i = 0; i < MAX_MSG_COUNT; i++) {
			s1 += i + "\r\n";
			s2 += i + "\n";
		}

		testCases.add(s1 + "bye\r\n");
		testCases.add(s2 + "bye\n");
	}

	@Test
	public void echo() {
		server(new Protocol() {

			@Override
			public void process(Channel ctx) {
				if (ctx.isInitial()) return;

				String in = ctx.readln();
				synchronized (ctx.output()) {
					BufUtil.startWriting(ctx.output());
					ctx.write(in.toUpperCase()).write(CR_LF).closeIf(in.equals("bye"));
					BufUtil.doneWriting(ctx.output());
				}
			}

		}, new Runnable() {
			@Override
			public void run() {
				connectAndExercise();
			}
		});
	}

	private void connectAndExercise() {

		Msc.connect("localhost", 8080, new F3<Void, InputStream, BufferedReader, DataOutputStream>() {
			@Override
			public Void execute(InputStream inputStream, BufferedReader in, DataOutputStream out) throws IOException {
				out.writeBytes("hello\n");
				eq(in.readLine(), "HELLO");

				out.writeBytes("Foo\n");
				eq(in.readLine(), "FOO");

				out.writeBytes("bye\n");
				eq(in.readLine(), "BYE");

				return null;
			}
		});

		for (int i = 0; i < ROUNDS; i++) {
			for (final String testCase : testCases) {

				final List<String> expected = U.list(testCase.toUpperCase().split("\r?\n"));

				Msc.startMeasure();

				Msc.connect("localhost", 8080, new F3<Void, InputStream, BufferedReader, DataOutputStream>() {
					@Override
					public Void execute(InputStream inputStream, BufferedReader in, DataOutputStream out) throws IOException {
						out.writeBytes(testCase);

						List<String> lines = IO.readLines(in);

						eq(lines, expected);
						return null;
					}
				});

				Msc.endMeasure(expected.size() + " messages");
			}
		}
	}

	@Test
	public void echoAsync() {
		server(new Protocol() {

			@Override
			public void process(final Channel ctx) {

				if (ctx.isInitial()) {
					BufUtil.doneWriting(ctx.output());
					return;
				}

				final String in = ctx.readln();
				final long handle = ctx.async();
				final long connId = ctx.connId();

				Msc.EXECUTOR.schedule(new Runnable() {
					@Override
					public void run() {

						ctx.resume(connId, handle, new AsyncLogic() {

							@Override
							public boolean resumeAsync() {
								ctx.write(in.toUpperCase());
								ctx.write(CR_LF);
								ctx.send();

								ctx.closeIf(in.equals("bye"));
								return true; // finished
							}
						});

					}
				}, Rnd.rnd(100), TimeUnit.MILLISECONDS);

			}

		}, new Runnable() {
			@Override
			public void run() {
				connectAndExercise();
			}
		});
	}

}