/*
* 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.nio.ByteBuffer;
import java.util.List;
import java.util.Queue;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.atomic.AtomicInteger;
import jakarta.websocket.ClientEndpoint;
import jakarta.websocket.CloseReason;
import jakarta.websocket.Endpoint;
import jakarta.websocket.EndpointConfig;
import jakarta.websocket.MessageHandler;
import jakarta.websocket.OnClose;
import jakarta.websocket.OnError;
import jakarta.websocket.OnOpen;
import jakarta.websocket.Session;
public class TesterMessageCountClient {
public interface TesterEndpoint {
void setLatch(CountDownLatch latch);
}
public static class TesterProgrammaticEndpoint extends Endpoint implements TesterEndpoint {
private CountDownLatch latch = null;
@Override
public void setLatch(CountDownLatch latch) {
this.latch = latch;
}
@Override
public void onClose(Session session, CloseReason closeReason) {
clearLatch();
}
@Override
public void onError(Session session, Throwable throwable) {
clearLatch();
}
private void clearLatch() {
if (latch != null) {
while (latch.getCount() > 0) {
latch.countDown();
}
}
}
@Override
public void onOpen(Session session, EndpointConfig config) {
session.getUserProperties().put("endpoint", this);
}
}
@ClientEndpoint
public static class TesterAnnotatedEndpoint implements TesterEndpoint {
private CountDownLatch latch = null;
@Override
public void setLatch(CountDownLatch latch) {
this.latch = latch;
}
@OnClose
public void onClose() {
clearLatch();
}
@OnError
public void onError(@SuppressWarnings("unused") Throwable throwable) {
clearLatch();
}
private void clearLatch() {
if (latch != null) {
while (latch.getCount() > 0) {
latch.countDown();
}
}
}
@OnOpen
public void onOpen(Session session) {
session.getUserProperties().put("endpoint", this);
}
}
public abstract static class BasicHandler<T> implements MessageHandler.Whole<T> {
private final CountDownLatch latch;
private final Queue<T> messages = new LinkedBlockingQueue<>();
public BasicHandler(CountDownLatch latch) {
this.latch = latch;
}
public CountDownLatch getLatch() {
return latch;
}
public Queue<T> getMessages() {
return messages;
}
}
public static class BasicBinary extends BasicHandler<ByteBuffer> {
public BasicBinary(CountDownLatch latch) {
super(latch);
}
@Override
public void onMessage(ByteBuffer message) {
getMessages().add(message);
if (getLatch() != null) {
getLatch().countDown();
}
}
}
public static class BasicText extends BasicHandler<String> {
private final String expected;
private final AtomicInteger messageCount;
public BasicText(CountDownLatch latch) {
this(latch, null);
}
public BasicText(CountDownLatch latch, String expected) {
super(latch);
this.expected = expected;
if (expected == null) {
messageCount = null;
} else {
messageCount = new AtomicInteger(0);
}
}
@Override
public void onMessage(String message) {
if (expected == null) {
getMessages().add(message);
} else {
if (!expected.equals(message)) {
throw new IllegalStateException("Expected: [" + expected + "] " + "Was: [" + message + "]");
}
messageCount.incrementAndGet();
}
if (getLatch() != null) {
getLatch().countDown();
}
}
public int getMessageCount() {
if (expected == null) {
return getMessages().size();
} else {
return messageCount.get();
}
}
}
public static class SleepingText implements MessageHandler.Whole<String> {
private final int sleep;
public SleepingText(int sleep) {
this.sleep = sleep;
}
@Override
public void onMessage(String message) {
try {
Thread.sleep(sleep);
} catch (InterruptedException e) {
// Ignore
}
}
}
public abstract static class AsyncHandler<T> implements MessageHandler.Partial<T> {
private final CountDownLatch latch;
private final List<T> messages = new CopyOnWriteArrayList<>();
public AsyncHandler(CountDownLatch latch) {
this.latch = latch;
}
public CountDownLatch getLatch() {
return latch;
}
public List<T> getMessages() {
return messages;
}
}
public static class AsyncBinary extends AsyncHandler<ByteBuffer> {
public AsyncBinary(CountDownLatch latch) {
super(latch);
}
@Override
public void onMessage(ByteBuffer message, boolean last) {
getMessages().add(message);
if (last && getLatch() != null) {
getLatch().countDown();
}
}
}
public static class AsyncText extends AsyncHandler<String> {
public AsyncText(CountDownLatch latch) {
super(latch);
}
@Override
public void onMessage(String message, boolean last) {
getMessages().add(message);
if (last && getLatch() != null) {
getLatch().countDown();
}
}
}
}