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//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.websocket.jsr356.server;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.net.URI;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.websocket.ClientEndpoint;
import javax.websocket.ContainerProvider;
import javax.websocket.OnMessage;
import javax.websocket.Session;
import javax.websocket.WebSocketContainer;
import javax.websocket.server.ServerEndpoint;
import javax.websocket.server.ServerEndpointConfig;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class TextStreamTest
{
private static final String PATH = "/echo";
private static final String CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
private Server server;
private ServerConnector connector;
private WebSocketContainer wsClient;
@Before
public void prepare() throws Exception
{
server = new Server();
connector = new ServerConnector(server);
server.addConnector(connector);
ServletContextHandler context = new ServletContextHandler(server, "/", true, false);
ServerContainer container = WebSocketServerContainerInitializer.configureContext(context);
ServerEndpointConfig config = ServerEndpointConfig.Builder.create(ServerTextStreamer.class, PATH).build();
container.addEndpoint(config);
server.start();
wsClient = ContainerProvider.getWebSocketContainer();
server.addBean(wsClient, true);
}
@After
public void dispose() throws Exception
{
server.stop();
}
@Test
public void testEchoWithMediumMessage() throws Exception
{
testEcho(1024);
}
@Test
public void testLargestMessage() throws Exception
{
testEcho(wsClient.getDefaultMaxBinaryMessageBufferSize());
}
private void testEcho(int size) throws Exception
{
char[] data = randomChars(size);
URI uri = URI.create("ws://localhost:" + connector.getLocalPort() + PATH);
ClientTextStreamer client = new ClientTextStreamer();
Session session = wsClient.connectToServer(client, uri);
try (Writer output = session.getBasicRemote().getSendWriter())
{
output.write(data);
}
Assert.assertTrue(client.await(5, TimeUnit.SECONDS));
Assert.assertArrayEquals(data, client.getEcho());
}
@Test
public void testMoreThanLargestMessageOneByteAtATime() throws Exception
{
int size = wsClient.getDefaultMaxBinaryMessageBufferSize() + 16;
char[] data = randomChars(size);
URI uri = URI.create("ws://localhost:" + connector.getLocalPort() + PATH);
ClientTextStreamer client = new ClientTextStreamer();
Session session = wsClient.connectToServer(client, uri);
try (Writer output = session.getBasicRemote().getSendWriter())
{
for (int i = 0; i < size; ++i)
output.write(data[i]);
}
Assert.assertTrue(client.await(5, TimeUnit.SECONDS));
Assert.assertArrayEquals(data, client.getEcho());
}
private char[] randomChars(int size)
{
char[] data = new char[size];
Random random = new Random();
for (int i = 0; i < data.length; ++i)
data[i] = CHARS.charAt(random.nextInt(CHARS.length()));
return data;
}
@ClientEndpoint
public static class ClientTextStreamer
{
private final CountDownLatch latch = new CountDownLatch(1);
private final StringBuilder output = new StringBuilder();
@OnMessage
public void echoed(Reader input) throws IOException
{
while (true)
{
int read = input.read();
if (read < 0)
break;
output.append((char)read);
}
latch.countDown();
}
public char[] getEcho()
{
return output.toString().toCharArray();
}
public boolean await(long timeout, TimeUnit unit) throws InterruptedException
{
return latch.await(timeout, unit);
}
}
@ServerEndpoint(PATH)
public static class ServerTextStreamer
{
@OnMessage
public void echo(Session session, Reader input) throws IOException
{
char[] buffer = new char[128];
try (Writer output = session.getBasicRemote().getSendWriter())
{
int read;
while ((read = input.read(buffer)) >= 0)
output.write(buffer, 0, read);
}
}
}
}
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