/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.tomcat.websocket;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
import jakarta.websocket.OnClose;
import jakarta.websocket.OnError;
import jakarta.websocket.OnMessage;
import jakarta.websocket.OnOpen;
import jakarta.websocket.RemoteEndpoint.Basic;
import jakarta.websocket.Session;
import jakarta.websocket.server.ServerEndpoint;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.websocket.server.TesterEndpointConfig;
/**
* Sends {@link #MESSAGE_COUNT} messages of size {@link #MESSAGE_SIZE} bytes as quickly as possible after the client
* sends its first message.
*/
public class TesterFirehoseServer {
public static final int MESSAGE_COUNT = 100000;
public static final String MESSAGE;
public static final int MESSAGE_SIZE = 1024;
public static final int WAIT_TIME_MILLIS = 300000;
public static final int SEND_TIME_OUT_MILLIS = 2000;
public static final String PATH = "/firehose";
static {
StringBuilder sb = new StringBuilder(MESSAGE_SIZE);
for (int i = 0; i < MESSAGE_SIZE; i++) {
sb.append('x');
}
MESSAGE = sb.toString();
}
public static class ConfigInline extends TesterEndpointConfig {
@Override
protected Class<?> getEndpointClass() {
return EndpointInline.class;
}
}
public static class ConfigThread extends TesterEndpointConfig {
@Override
protected Class<?> getEndpointClass() {
return EndpointThread.class;
}
}
public abstract static class Endpoint {
private static final AtomicInteger openConnectionCount = new AtomicInteger(0);
private static final AtomicInteger errorCount = new AtomicInteger(0);
private final boolean inline;
private volatile boolean started = false;
public static int getOpenConnectionCount() {
return openConnectionCount.intValue();
}
public static int getErrorCount() {
return errorCount.intValue();
}
public Endpoint(boolean inline) {
this.inline = inline;
}
@OnOpen
public void onOpen() {
openConnectionCount.incrementAndGet();
}
@OnMessage
public void onMessage(Session session, String msg) throws IOException {
if (started) {
return;
}
synchronized (this) {
if (started) {
return;
} else {
started = true;
}
}
System.out.println("Received " + msg + ", now sending data");
Writer writer = new Writer(session);
if (inline) {
writer.doRun();
} else {
Thread t = new Thread(writer);
t.start();
}
}
@OnError
public void onError(@SuppressWarnings("unused") Throwable t) {
errorCount.incrementAndGet();
}
@OnClose
public void onClose() {
openConnectionCount.decrementAndGet();
}
}
private static class Writer implements Runnable {
private static final Log log = LogFactory.getLog(Writer.class);
private final Session session;
Writer(Session session) {
this.session = session;
}
@Override
public void run() {
try {
doRun();
} catch (IOException ioe) {
log.error("Error on non-container thread", ioe);
}
}
public void doRun() throws IOException {
session.getUserProperties().put(Constants.BLOCKING_SEND_TIMEOUT_PROPERTY,
Long.valueOf(SEND_TIME_OUT_MILLIS));
Basic remote = session.getBasicRemote();
remote.setBatchingAllowed(true);
for (int i = 0; i < MESSAGE_COUNT; i++) {
remote.sendText(MESSAGE);
if (i % (MESSAGE_COUNT * 0.4) == 0) {
remote.setBatchingAllowed(false);
remote.setBatchingAllowed(true);
}
}
// Flushing should happen automatically on session close
session.close();
}
}
@ServerEndpoint(PATH)
public static class EndpointInline extends Endpoint {
public EndpointInline() {
super(true);
}
}
@ServerEndpoint(PATH)
public static class EndpointThread extends Endpoint {
public EndpointThread() {
super(false);
}
}
}